,transcrib]'s ,notes3 #a4 ,tildes are us$ to d5ote text 9 small caps4 ,,am]ican ,,society ,,( ,,civil ,,eng9e]s ,,in/itut$ #aheb ,,transactions ,pap] ,no4 #aaia ,,wat] ,,purification ,,plant1 ,,wa%+ton1 ,d4 ,c4 ,,results ,,( ,,op]ation4#a ,by ,e4 ,d4 ,h>dy1 ,m4 ,am4 ,soc4 ,c4 ,e4 ,) ,discussion by ,messrs4 ,all5 ,haz51 ,george ,a4 ,johnson1 ,morris ,kn[les1 ,george ,c4 ,:ipple1 ,f4 ,f4 ,longley1 & ,e4 ,d4 ,h>dy4 ,! ,wa%+ton filtration plant has already be5 fully describ$4#b ,at ! "t t pap] 0 writt5 7,novemb]1 #aijf71 ! filtration plant _h be5 9 op]ation = only ab\t #a ye>4 ,x has n[ be5 9 cont9u\s op]ation = #e ye>s1 & _m data on ! co/1 effici5cy1 & me?ods ( op]ation1 h accumulat$ 9 ! v>i\s records & books :i* h be5 kept4 ,x is ?\ght t a brief review ( ! results1 & a summ>y ( ! records 9 tabul> =m1 w be ( int]e/ to ! memb]s ( ! ,society1 & x is also hop$ t ! discussion ( ?is pap] w br+ out ! comp>ative results ( op]ation ( o!r filt] plants4 ,z a matt] ( conv5i5ce1 ! foll[+ g5]al description ( ! plant is giv54 ,description ( ! ,filtration ,plant4--,! ,wa%+ton filtration plant 0 complet$ & put 9 op]ation 9 ,octob]1 #aije4 ,x consi/s ( a pump+ /ation = rais+ ! wat] f ! ,mc,millan ,p>k ,res]voir to ! filt] b$s2 #bi filt]s ( ! sl[ s& type1 hav+ an effective area ( #a acre ea*2 ! filt]$-wat] res]voir1 hav+ a capacity ( ab\t #ae1jjj1jjj gal42 & ! necess>y pip+ & valves = c>ry+ wat]1 controll+ rates ( filtration1 etc4 ,footnote #a3 ,pres5t$ at ! meet+ ( ,febru>y #ae?1 #aiaa4 ,footnote #b3 ,works = ! ,purification ( ! ,wat] ,supply ( ,wa%+ton1 ,d4 ,c41 by ,all5 ,haz5 & ,e4 ,d4 ,h>dy1 ,memb]s1 ,am4 ,soc4 ,c4 ,e41 ,transactions1 ,am4 ,soc4 ,c4 ,e41 ,vol4 ,,lvii1 p4 #cjg4 ,9 ! pump+ /ation1 !re are ?ree c5trifugal pumps1 :i* are directly connect$ to t&em comp\nd eng9es2 two s&-wa%] pumps2 ?ree small electric g5]at+ sets = furni%+ electric light2 & f\r #bjj-;h4p41 wat]-tube boil]s4 ,ea* ( ! c5trifugal pumps has a nom9al capacity ( #dj1jjj1jjj gal4 p] day :5 pump+ aga9/ a head ( #ba ft41 & ea* s&-wa%] pump has a capacity ( #b1ejj1jjj gal4 :5 pump+ aga9/ a head ( #bej ft4 ,! electric light eng9es & g5]ators supply ! curr5t = light+ ! pump+ /ation1 ! (fice & laboratory & o!r build+s1 & also ! c\rts & int]ior ( ! filt] b$s1 & = op]at+ a ma*9e-%op4 ,! filt]s & filt]$-wat] res]voir are built entirely ( concrete masonry4 ,! floors are ( inv]t$ gro9$ ar*es on :i* re/ ! pi]s = support+ ! gro9$ ar* vault+4 ,all ?is concrete "w is simil> to t 9 ! ,albany1 ,philadelphia1 & ,pittsburg filt]s4 ,! filt]s conta91 on an av]age1 #dj 94 ( filt] s& & #ab 94 ( filt] gravel4 ,! gravel is grad$ f co>se to f9e2 ! l[] & co>s] "p acts z "p ( ! "u-dra9 sy/em1 & ! upp] & f9e/ lay] supports ! filt] s&4 ,! raw wat] f ! pumps is c>ri$ to ! filt]s ?r\gh rivet$ /eel ris+ ma9s :i* h #bj-;94 ca/-iron bran*es = supply+ ! individual filt]s4 ,! filt]$ wat] is collect$ 9 ! "u-dra9age sy/em ( ! sev]al filt] b$s1 & is c>ri$ ?r\gh #bj-;941 ca/-iron pipes to ! regulator-h\ses4 ,^! regulator-h\ses conta9 ! necess>y valves1 regi/]+ app>atus1 etc41 = regulat+ ! rate ( filtration1 %[+ ! loss ( head1 %utt+ d[n a filt]1 fill+ a filt] ) filt]$ wat] f ! "u-dra9s1 & = turn+ ! wat] back into ! raw-wat] res]voir1 or wa/+ x into ! sew]4 ,f ! regulator-h\ses1 ! filt]$ wat] fl[s directly to ! filt]$-wat] res]voir4 ,g5]ally1 five filt]s are controll$ f "o h\se1 b !re are two cases :]e ! regulator-h\ses are small]1 & only two filt]s are controll$ f ea*4 ,! dirty s& remov$ f ! filt]s is c>ri$ by a portable ejector ?r\gh "o or m l5g?s ( #c-;94 hose & a fix$ l9e ( #d-;94 pipe1 to ! s& wa%]s4 ,f ! s& wa%]s1 ! wa%$ s& is c>ri$ to ! re9=c$ concrete /orage b9s1 ea* ( :i* has a capacity ( #bej cu4 yd41 & is at su* an elevation t c>ts may be driv5 "u x & load$ ?r\gh a gate4 ,until ,april1 #aiji1 ! s& 0 replac$ 9 ! filt]s by c>ts :i* 7 fill$ ?r\gh ! gates 9 ! s& b9s4 ,x 0 !n haul$ to ! top ( ! filt] b$s & dump$ ?r\gh ! manholes on ! *utes1 :i* c\ld be revolv$ 9 any direction4 ,^! *utes 7 us$ to prev5t ! s& f be+ unduly compact$ 9 ! vic9ity ( ! manholes1 & to facilitate spread+ x 9 ! filt]s4 ,s9ce ,april1 #aiji1 all ! s& has be5 replac$ by ! hydraulic me?od4 ,an ejector is plac$ "u ! gate 9 ! s& b91 & ! s& is c>ri$ 9 a rev]se direction f ! b9 ?r\gh ! #d-;94 pip+ & "o or m l5g?s ( hose to ! filt] b$4 ,?is process has l[]$ ! co/ ( re-s&+ consid]ably1 & pres5t indications are t x w prove entirely satisfactory 9 e way4 ,! av]age effective size & uni=mity coeffici5t ( ! filt]s are %[n 9 ,table #a4 ,table #a--;,filt] ,s& z ,orig9ally ,plac$4 ,filt] ,av]age ,av]age ,dep? ( ,av]age ,no4 effective size1 uni=mity s&1 9turbidity4 9 millimet]s4coeffici5t4 in*es4 ---------------------------------------- ------------ #a #j4cb #a4hh #ce4c #b1fjj #b #j4cj #a4gh #cg4g #b1bjj #c #j4cb #a4gg #dj4b #c1jjj #d #j4bi #a4hj #db4e #a1hjj #e #j4cd #a4gd #dd4i #b1gjj #f #j4ca #a4gh #cg4g #b1cjj #g #j4bi #a4gb #dj4a #b1cjj #h #j4cb #a4ge #dj4b #b1hjj #i #j4cb #a4gh #db4e #b1ijj #aj #j4cj #a4fi #ci4e #b1ejj #aa #j4cd #a4ic #cg4a #b1fjj #ab #j4bi #a4ff #cd4g #b1ajj #ac #j4cb #a4hc #cc4f #c1ejj #ad #j4bi #a4ff #cc4f #b1fjj #ae #j4cc #a4ge #ci4j #b1djj #af #j4cc #a4gh #db4c #c1jjj #ag #j4cc #a4hf #de4e #c1cjj #ah #j4cd #a4hj #dh4g #c1ajj #ai #j4cd #a4hj #eb4j 44444 #bj #j4cd #a4hg #ci4j #b1gjj #ba #j4cb #a4hb #db4c #b1djj #bb #j4cc #a4gd #de4e #b1bjj #bc #j4cc #a4ha #dh4g #b1cjj #bd #j4ce #a4hj #eb4j #b1fjj #be #j4bi #a4fd #ci4e #b1djj #bf #j4ca #a4ga #cg4a #b1ajj #bg #j4ca #a4ga #cd4g #a1ijj #bh #j4cc #a4ic #cc4f #b1cjj #bi #j4cd #a4ic #cc4f #c1jjj ---------------------------------------- ------------ ,maximum #j4cf #a4ic #eb4j #c1cjj ,m9imum #j4bi #a4fd #cc4f #a1hjj ,av]age #j4cb #a4gg #dj4d #b1fjj ,description ( ,wa%+ton ,aqu$uct4--,! wat] supply ( ,wa%+ton is tak5 f ! ,potomac ,riv]1 at ,great ,falls1 ab\t #af miles above ! city4 ,at t place1 a dam has be5 built across ! riv]1 :i* holds ! wat] at an elevation ( #aej4e ft4 above mean tide at ,wa%+ton4 ,f ,great ,falls ! wat] fl[s by gravity = a di/ance ( #af miles ?r\gh a #i-;ft4 conduit1 ?ree res]voirs1 & a tunnel4 ,f ,mc,millan ,p>k ,res]voir1 ! la/ ( ! ?ree1 ! wat] is lift$ by c5trifugal pumps ab\t #ba ft4 to ! filt]s4 ,aft] pass+ ?r\gh ! filt]s1 x fl[s to ! filt]$-wat] res]voir1 & lat] to ! city ma9s4 ,9 its passage f ,great ,falls to ! filt]s1 ! wat] fl[s ?r\gh ?ree settl+ res]voirs1 :i* h already be5 ref]r$ to4 ,^! res]voirs are kn[n z ! ,dalec>lia1 ! ,georget[n1 & ! ,mc,millan ,p>k ,res]voirs1 & h available capacities ( #ada1jjj1jjj1 #adj1jjj1jjj1 & #ahj1jjj1jjj gal41 respectively4 ,turbidity4--,! ,potomac ,riv] wat] is r turbid1 ! turbidity be+ caus$ by v f9e p>ticles ( clay4 ,! riv] is subject to sudd5 fluctuations1 x be+ no uncommon ?+ to h a turbidity ( #ajj "o day1 & #a1jjj ! next4 ,! high turbidity usually disappe>s ab\t z rapidly z x comes1 & is seldom high] ?an #ejj = m ?an #e days at a "t4 ,x is frequ5tly ! case1 h[ev]1 t a succession ( waves ( high turbidity w appe> s close toge!r t ! effect ( "o has n disappe>$ be=e t ( ano!r is felt4 ,! cl>ification ( ! wat] supply beg9s at ! dam at ,great ,falls4 ,"h x is a cl>ification by exclusion1 = :5 an excessive quantity ( mud appe>s 9 ! riv] wat]1 ! gates are clos$1 & ! muddy wat] is all[$ to fl[ ov] ! dam & =m mud-b>s 9 ! ,l[] ,potomac1 :ile ! city is suppli$ f ! wat] /or$ 9 ! ?ree settl+ res]voirs4 ,until a comp>atively rec5t date1 ! excessively muddy wat] 0 nev] exclud$1 hav+ be5 tak51 l o!r decrees ( ,provid5ce1 z x came4 ,dur+ ! summ] ( #aijg1 ! practice ( %utt+ out wat] ) a turbidity ( #ejj or m 0 e/abli%$ = ! w>m mon?s4 ,?is practice 0 discont9u$ dur+ ! cold mon?s1 z x 0 fe>$ t a v high consumption ( wat] might occur at ! "t ( l[ wat] 9 ! res]voirs1 & s cause a p>tial fam9e4 ,dur+ ! w9t] ( #aiji-aj1 h[ev]1 ! gates 7 clos$1 z 0 ! practice ?r\gh\t ! summ] mon?s4 ,:5 ! res]voirs are well fill$1 & ! consumption ( wat] is less ?an #gj1jjj1jjj gal4 p] day1 x is safe to close ! gates at ,great ,falls = a p]iod ( ab\t #d days4 ,illu/ration3 ,figure #a--,plan & ,pr(ile ( ,wa%+ton ,aqu$uct4 ,:ile a consid]able r$uction 9 turbidity is effect$ 9 ea* ( ! res]voirs1 ! bulk ( ! mud is deposit$ at ! upp] end ( ,dalec>lia ,res]voir4 ,?is res]voir _h become s completely fill$1 t1 9 #aije1 x 0 necess>y to dr$ge a *annel ?r\gh ! deposit1 9 ord] to all[ ! wat] to pass x4 ,dur+ ! summ]s ( #aijg & #aijh1 a #aj-;94 hydraulic dr$ge remov$ m ?an #ajj1jjj cu4 yd4 ( mud :i* _h be5 deposit$ 9 ?is res]voir4 ,! mud deposit$ 9 ,georget[n & ,mc,millan ,p>k ,res]voirs is s f9e t ! accumulation ( _m ye>s is n v noticeable 9 its effect on ! dep? ( wat]4 ,! p>ticles ( clay :i* rema9 9 ! wat] aft] its passage ?r\gh ! ?ree res]voirs1 are s exce$+ly small t !y d n settle out 9 any reasonable l5g? ( "t4 ,ev5 ! filtration ( ! wat] ?r\gh "o or m sl[ s& filt]s occasionally fails to remove ! la/ trace ( turbidity4 ,?is is especially true 9 ! cold] mon?s1 & n a w9t] has pass$ :5 ! wat] supply has n be5 noticeably turbid at "s "t4 ,a g5]al idea ( ! quantity ( mud conta9$ 9 ! riv] wat]1 ! quantity exclud$ by clos+ ! gates at ,great ,falls1 & t remov$ by s$im5tation & filtration1 may be ga9$ f ,table #b1 :i* is1 ( c\rse1 only a r\gh approximation4 ,table #b also %[s t ! gates 7 clos$ #aj4ej ( ! "t1 !reby exclud+ #dj4jf ( ! total susp5d$ matt] :i* o!rwise w\ld h ent]$ ! sy/em4 ,! turbidities1 bact]ial c\nts1 & *emical analyses ( num]\s samples ( wat] are %[n 9 ,tables #c1 #d1 #e1 & #f4 ,! am\nt ( "w done 9 ! pump+ /ation1 av]age consumption ( wat]1 dea? rate f typhoid fev]1 & filt] runs are %[n 9 ,tables #g1 #h1 #i1 & #aj4 ,rak+4--,at ! "t ! filt]s 7 fir/ put 9 s]vice1 ! s& b9s _h n be5 complet$1 &1 consequ5tly1 ! "w ( clean+ ! filt]s 0 c>ri$ on 9 ! old-fa%ion$ way ( scrap+ by h& & :eel+ out ! s& 9 b>r[s4 ,?is me?od ( clean+ 0 us$ f ,octob]1 #aije1 to ,april1 #aijf2 !n ! regul> s&-h&l+ sy/em 0 comm5c$4 ,at times1 dur+ ! fir/ two summ]s ! filt]s 7 9 op]ation1 consid]able difficulty 0 exp]i5c$ 9 keep+ !m clean$ z fa/ z 0 necess>y to provide an ample supply ( filt]$ wat]4 ,= a %ort p]iod 9 ea* summ] x 0 f\nd necess>y to organize night %ifts1 & keep ! "w ( clean+ 9 progress = f #af to #bd h\rs p] day4 ,illu/ration3 ,figure #b--;,g5]al ,plan ( ,wa%+ton ,filtration ,plant ,%[+ ,f9i%$ ,surfaces4 ,table #b--,tons ( ,susp5d$ ,matt] ,ent]+ ,sy/em1 ,etc4 ,columns3 ,a - ,am\nt t w\ld h ent]$ ! sy/em if ! gates _h be5 left cont9u\sly op54 ,b - ,numb] ( h\rs gates 7 clos$4 ,c - ,am\nt %ut out4 ,d - ,am\nt deposit$ 9 ,dalec>lia ,res]voir4 ,e - ,am\nt deposit$ 9 ,georget[n ,res]voir4 ,f - ,am\nt deposit$ 9 ,mc,millan ,p>k ,res]voir4 ,g - ,am\nt ent]+ filtration plant4 ,mon?4 ,a ,b ,c ,d ,e ,f ,g ,total4 ---------------------------------------- -------------------- #aiji4 ---------------------------------------- -------------------- ,july #cah #cb4j #c #j #abe #gd #aaf #cah ,augu/ #adf #dg4j #a #j #gh #ch #bi #adf ,septemb] #ig #eg4j #g #ba #ac #ch #ah #ig ,octob] #fa #ij4e #h #g #i #be #ab #fa ,novemb] #ej #fj4j #d #ac #e #ag #aa #ej ,decemb] #cgj #ii4j #abf #ajh #cc #ei #dd #cgj ---------------------------------------- -------------------- #aiaj4 ---------------------------------------- -------------------- ,janu>y #b1daj #acf4j #a1aji #a1jbj #fg #aag #ig #b1daj ,febru>y #hci #aag4e #dha #abf #ef #ge #aja #hci ,m>* #bjh #g4e #ac #dc #ae #ac #abd #bjh ,april #cba #fe4j #ag #aie #dc #dc #bc #cba ,may #aig #hd4e #eh #ed #bb #bd #ci #aig ,june #a1eje #abd4j #ghf #ece #di #hh #dg #a1eje ---------------------------------------- -------------------- ,total #f1ebb #ibj4j #b1fac #b1abb #eae #faa #ffa #f1ebb ,9 ord] to relieve ! situation at su* times1 ! exp$i5t ( rak+ 0 tri$4 ,?is 0 fir/ attempt$ ) ! filt]s fill$ ) wat]2 ! efflu5t 0 fir/ %ut (f 9 ord] to prev5t a d[nw>d fl[ ( wat]1 & ! filt] 0 !n rak$ or h>r[$ f boats4 ,?is me?od 0 n satisfactory1 h[ev]1 z ! "w 0 nei!r z uni=m nor z ?or\gh z necess>y4 ,lat]1 ! filt]s 7 dra9$ to ! necess>y dep?1 & ! surface ( ! s& 0 ?or\ghly /irr$ ) iron g>d5 rakes4 ,! filt]s 7 !n fill$ ) filt]$ wat] ?r\gh ! "u-dra9s & put 9 s]vice4 ,?is latt] me?od prov$ s satisfactory t x has be5 resort$ to at all times :5 ! "w 0 at all press+4 ,:5 ! runs 7 ( %ort duration1 & ! dep? to :i* ! mud _h p5etrat$ ! filt] s& 0 slight1 a rak+ seem$ to be ne>ly z effective 9 re/or+ ! filt] capacity z a scrap+2 x c\ld be done 9 #h h\rs by #c labor]s1 & !re seem$ to be no ill effects f l[]$ effici5cy4 ,table #c--,turbidities4 ,av]age by ,mon?s4 7,unit$ ,/ates ,geological ,survey ,/&>d47 ,res]voirs3 ---------------------------------------- -- ,mon?4 ,great ,falls4 ,dalec>lia ,georget[n ,mc,millan ,filt]$ ,outlet4 ,outlet4 ,p>k4 wat]4 ,outlet4 ---------------------------------------- --------- ,max4 ,ave4 ,max4 ,ave4 ,max4 ,ave4 ,max4 ,ave4 ,max4,ave ---------------------------------------- ------------------- #aije4 ---------------------------------------- ------------------- ,octob] #ajj #cf #dj #ba #cb #ah #bj #aa #d #a ,novemb] #ce #ai #cd #ai #bb #ad #ad #aa #c #a ,decemb] #a1ejj #aii #bej #hd #aej #gd #ie #ci #ad #f ---------------------------------------- ------------------- #aijf4 ---------------------------------------- ------------------- ,janu>y #gjj #id #ahj #fj #abj #fj #he #eb #bj #ab ,febru>y #abj #de #he #da #ee #bi #ce #bb #e #c ,m>* #a1gej #bgb #cej #aha #abj #ef #ij #df #h #f ,april #a1bgj #afg #ahj #gb #ie #eh #ge #df #ab #g ,may #fjj #ef #ej #bj #de #af #cd #aj #c #b ,june #a1gjj #cjc #ejj #abe #dej #id #ahj #da #ac #b ,july #a1jjj #acj #ahj #ed #aej #dg #bej #dc #ac #c ,augu/ #a1ecj #cge #bej #aab #ie #ff #fe #de #e #b ,septemb] #abj #cc #ahj #cd #ie #bh #ge #be #g #b ,octob] #a1jbe #abg #aaj #cg #fj #bd #ee #ba #a #a ,novemb] #afj #bg #ge #bj #de #af #bd #ac #a #a ,decemb] #fjj #fi #aaj #ca #hj #bh #hj #bf #h #b ---------------------------------------- ------------------- #aijg4 ---------------------------------------- ------------------- ,janu>y #djj #ace #aej #gj #aaj #ge #gj #ec #aa #g ,febru>y #ee #bf #bf #ae #cf #af #dj #ag #e #b ,m>* #iej #bdh #ahj #gg #acj #gj #ij #eg #g #d ,april #bjj #dg #hj #cc #fj #cj #de #bd #d #b ,may #acj #bi #dj #ah #bf #ae #ad #i #a #a ,june #djj #ajd #afj #dh #ge #cb #dj #ah #a #a ,july #fjj #aad #acj #fa #gh #dg #de #ca #a #a ,augu/ #hjj #gc #acj #ce #he #bf #cj #ad #a #j ,septemb] #fjj #abi #a #a #aej #ea #gj #bh #a #j ,octob] #ge #cb #a #a #fe #bh #ge #bf #d #j ,novemb] #cjj #ig #a #a #ajj #de #de #bc #b #a ,decemb] #fhj #ace #a #a #ahj #fa #ajj #df #aj #d ---------------------------------------- ------------------- #aijh4 ---------------------------------------- ------------------- ,janu>y #b1ajj #bjb #cdj #gc #bej #hb #afj #fe #bj #g ,febru>y #c1jjj #cjb #cjj #eb #aej #eb #ge #cb #g #d ,m>* #cjj #ia #aej #gh #ajj #fh #fe #db #e #d ,april #ge #bc #fe #da #cg #bg #bf #bj #c #b ,may #b1jjj #agb #acj #dh #he #cg #ej #bj #a #a ,june #djj #dj #gj #bi #dj #bd #cj #ah #a #a ,july #a1ejj #adi 444 #gd #agj #dd #ge #ae #j #j ,augu/ #ijj #abi #bjj #a #aej #ef #he #ci #b #a ,septemb] #ge #bd #a #a #ej #ai #ce #ah #j #j ,octob] #ie #bj #a #a #ee #ah #bh #ae #j #j ,novemb] #bd #aa #a #a #bj #aa #ai #aj #j #j ,decemb] #bj #i #ag #aa #ad #i #aj #g #j #j ---------------------------------------- ------------------- #aiji4 ---------------------------------------- ------------------- ,janu>y #djj #gb #ie #cb #fj #bc #be #af #d #a ,febru>y #fej #aid #abj #fd #ij #ea #ee #ce #d #c ,m>* #bej #ea #a #a #ij #dd #fj #cg #h #d ,april #gej #ih #a #a #acj #db #gf #ca #b #a ,may #dhj #eg #a #a #cj #ai #cj #ab #b #a ,june #fej #ada #a #a #abj #ea #hj #cj #a #j ,july #djj #dh #a #a #bae #df #abj #ce #b #a ,augu/ #ahj #bc #a #a #ej #ag #ah #i #j #j ,septemb] #bf #af #bd #ad #a #a #be #f #j #j ,octob] #ad #aj #ae #aj #aa #i #h #d #j #j ,novemb] #aa #i #aa #h #aj #h #f #d #j #j ,decemb] #fjj #fc #aaj #ca #hj #bh #ej #ae #c #j ---------------------------------------- ------------------- #aiaj4 ---------------------------------------- ------------------- ,janu>y #c1jjj #ceg #bjj #eh #aej #ec #aae #cj #e #b ,febru>y #c1jjj #adc #aej #ee #abj #ej #ajj #cf #g #d ,m>* #baj #cf #ajj #ce #ie #ch #ajj #dc #i #e ,april #cej #ee #ajj #be #ee #ah #be #h #a #jb ,may #cjj #cc #ee #ai #ej #ag #bh #ac #a #jb ,june #a1ejj #bdf #ahj #db #aaj #cg #ej #af #a #jb ---------------------------------------- ------------------- ,fiscal ye>s3 ---------------------------------------- ------------------- #aije-jfba1gej #acc #ejj #gj #dej #dg #ahj #ca #bj #e #aijf-jg #a1ecj #aad #bej #df #aej #cg #bej #bi #ac #b #aijg-jh #c1jjj #aag #cdj #ec #bej #de #afj #ca #bj #b #aijh-ji #a1ejj #gi #bjj #ej #agj #cb #he #bb #h #a #aiji-aj #b1ajj #hf #bjj #cj #bae #bi #abj #ah #i #a ,footnote #a3 ,res]voirs out ( s]vice4 ,footnote #b3 ,octob] to ,june #cj?4 ,table #d--;,bact]ia4 ,av]ages by ,mon?s4 ,res]voirs3 ---------------------------------------- ----------- ,mon?4 ,dalec>lia,dalec>lia,georget[n,mc,millan ,p>k,filt]$ ,inlet4 ,outlet4 ,outlet4 ,outlet4 wat]4 ---------------------------------------- ------------------------ #aije4 ---------------------------------------- ------------------------ ,octob] 444 444 444 #baj #hj ,novemb] 444 444 444 #aej #bg ,decemb] 444 #ae1ejj 444 #c1hjj #fj ---------------------------------------- ------------------------ #aijf4 ---------------------------------------- ------------------------ ,janu>y 444 #b1hjj 444 #a1ejj #ci ,febru>y #b1ijj #d1ajj #a1hjj #eej #af ,m>* #a1hjj #a1ajj #ijj #fej #ai ,april #c1cjj #a1gjj #gjj #djj #bb ,may #dbe #baj #ie #fe #ag ,june #g1ijj #d1fjj #cbe #bbj #ag ,july #ac1ejj #fjj #dge #afj #bf ,augu/ #h1gjj #a1ajj #a1bjj #aij #ad ,septemb] #dbe #bej #adj #ace #ad ,octob] #b1cjj #iej #fej #bgj #af ,novemb] #a1hjj #a1ajj #a1bjj #bbj #ab ,decemb] #f1ijj #c1hjj #c1fjj #gjj #de ---------------------------------------- ------------------------ #aijg4 ---------------------------------------- ------------------------ ,janu>y #d1djj #b1djj #b1bjj #iej #gj ,febru>y #a1jjj #iej #a1jjj #gjj #de ,m>* #aa1ejj #h1cjj #g1bjj #c1fjj #fe ,april #c1gjj #b1ajj #a1djj #dge #ba ,may #gej #cej #cbe #acj #bf ,june #b1cjj #a1jjj #fjj #ajj #ah ,july #b1gjj #ege #cej #afj #ag ,augu/ #c1jjj #bge #dbe #hj #ag ,septemb] #f1bjj #a #a1ijj #bcj #cb ,octob] #a1djj #a #iej #bge #bg ,novemb] #h1ijj #a #f1fjj #a1ejj #bg ,decemb] #af1jjj #a #i1fjj #d1cjj #aij ---------------------------------------- ------------------------ #aijh4 ---------------------------------------- ------------------------ ,janu>y #aa1jjj #h1gjj #i1djj #c1gjj #aij ,febru>y #aa1ejj #f1jjj #e1jjj #b1hjj #ge ,m>* #d1fjj #d1jjj #b1ijj #a1cjj #cj ,april #gjj #dej #bej #abj #ac ,may #i1ejj #a1ajj #fej #cbe #ag ,june #gej #abj #aaj #ie #ab ,july #d1ijj 444 #djj #aej #h ,augu/ #a1fjj #cbe #cjj #ajj #ab ,septemb] #cbe #a #bjj #hj #aa ,octob] #cge #a #cbe #adj #h ,novemb] #eej #a #cjj #bjj #ab ,decemb] #hjj #gej #cge #agj #bc ---------------------------------------- ------------------------ #aiji4 ---------------------------------------- ------------------------ ,janu>y #aa1jjj #b1gjj #a1fjj #gjj #ca ,febru>y #h1jjj #c1ejj #b1djj #a1cjj #fj ,m>* #c1hjj #a #b1fjj #a1jjj #ci ,april #b1bjj #a #a1djj #eej #ab ,may #ijj #a #cej #adj #af ,june #c1djj #a #a1bjj #agj #ba ,july #eej #a #ejj #bej #cc ,augu/ #djj #a #cbe #ee #ah ,septemb] #cbe #bdj #a #gj #ah ,octob] #cej #bge #bej #acj #bj ,novemb] #fjj #ejj #ejj #ahj #ac ,decemb] #ba1jjj #i1ajj #e1ijj #d1ejj #bej ---------------------------------------- ------------------------ #aiaj4 ---------------------------------------- ------------------------ ,janu>y #gf1jjj #gh1jjj #hh1jjj #eb1jjj #hjj ,febru>y #de1jjj #ce1ejj #ca1jjj #ag1ejj #cej ,m>* #i1ijj #g1fjj #g1djj #d1hjj #hj ,april #g1ijj #d1ajj #c1ejj #fej #bi ,may #a1bcj #haj #hcj #ddh #bh ,june #c1ffj #icj #hjj #cbd #bg ---------------------------------------- ------------------------ ,fiscal ye>s3 ---------------------------------------- ------------------------ #aije-jf #c1cjjb #d1cjjc #gejd #hejb #ccb #aijf-jg #d1ijj #a1ijj #a1gjj #fej #ca #aijg-jh #f1cfj #b1gjj #b1ijj #a1cjj #ee #aijh-ji #c1djj #b1jjj #iej #djj #ba #aiji-aj #ad1cjj #ac1ijj #aj1ijj #f1hij #adc ,footnote #a3 ,res]voirs out ( s]vice4 ,footnote #b3 ,octob] to ,june #cj?4 ,footnote #c3 ,decemb] to ,june #cj?4 ,footnote #d3 ,febru>y to ,june #cj?4 ,table #e--,results ( ,te/s = ,bacillus ,coli4 ,p]c5tage ,positive4 ,great ,falls1 ,dalec>lia or ,dalec>lia ,res]voir ,georget[n ,res]voir ,outlet4 ,res]voir4 ,mon?4 ,inlet4 ------------------------------------- #aj #a #j4a #aj #a #j4a #aj #a #j4a c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4 ---------------------------------------- ---------- #aijf4 ---------------------------------------- ---------- ,janu>y#a #ee4fch4ibb4bfi4bbc4a #g4gef4jdj4j #h4j ,febru>y #cc4cbf4g #f4gbf4aag4d #h4gcj4dac4j #d4d ,m>* #ej4jab4e #jde4eah4b #jbj4h #h4c #j ,april #gb4bcc4caf4gie4eej4j #d4fei4abb4g #d4f ,may #bj4j #h4j #d4jbj4jab4j #j #g4h #j #j ,june #eg4gch4eai4bdj4jcb4j #h4jej4jcd4f #j ,july #fe4jej4j #e4jfj4jbe4jaj4jae4j #e4j #e4j ,augu/ #hd4ffi4bfa4ehh4efe4dcd4fhj4jeg4gbc4a ,septemb] #ej4jaj4j #jcj4jaj4jaj4jdj4jaj4j #j ,octob] #fj4jcj4jaj4jee4ecc4c #jhj4jfj4jbj4j ,novemb] #cg4e #j #jbe4jab4eab4ecg4ebe4j #j ,decemb] #ee4edd4e #jff4gdd4ebb4bff4gbb4b #j ---------------------------------------- ---------- #aijg4 ---------------------------------------- ---------- ,janu>y #gg4hcc4cbb4bff4gcc4c #jee4eee4ebb4b ,febru>y #cg4ebe4j #jab4e #j #jcg4eab4e #j ,m>* #hg4eej4j #jge4jcg4e #jej4jbe4j #j ,april #dd4eaa4aaa4aff4gbb4baa4agg4haa4aaa4a ,may #ia4cfe4bag4dhh4icc4c #jhg4eej4jab4e ,june #hj4jfh4jbd4jhg4efb4e #jff4gdd4eaa4a ,july #db4ccj4hai4bbe4jab4e #jbb4bbb4b #j ,augu/ #dh4abi4f #c4gcc4caf4gaf4gcf4dah4b #j ,septemb] #fb4eed4abe4j 444 444 444#da4gcc4caf4g ,octob] #ea4idj4h #g4d 444 444 444#ec4cdj4j #f4g ,novemb] #hj4jfd4jbd4j 444 444 444#gb4ged4e #j ,decemb] #ef4jdh4jaf4j 444 444 444#df4bch4e #g4g ---------------------------------------- ---------- #aijh4 ---------------------------------------- ---------- ,janu>y #df4bcj4hae4dej4jab4e #jcc4c #j #j ,febru>y #ab4e #j #jbe4j #j #jab4e #j #j ,m>* #ch4eai4b #g4gdd4daa4a #jaa4a #j #j ,april #ae4d #g4g #j #j #j #j #j #j #j ,may #gf4jeb4jdj4jhg4eej4jab4ecc4cbb4b #j ,june #g4g #j #j #j #j #jaa4a #j #j ,july #bf4iae4daa4ebb4bbb4b #jaa4a #j #j ,augu/ #df4bbf4i #c4idd4dcc4c #jfb4ebe4jab4e ,septemb] #bj4j #h4j #d4jdb4ibh4f #a4dbb4baa4a #j ,octob] #ah4d #c4g #j #j #j #j #i4a #j #j ,novemb] #ac4j #j #jbh4f #j #jaa4a #j #j ,decemb] #aa4e #g4g #c4h #j #j #jab4e #j #j ---------------------------------------- ---------- #aiji4 ---------------------------------------- ---------- ,janu>y #ab4j #h4j #jcj4jaj4j #j #j #j #j ,febru>y #eb4adg4hdg4hbh4fad4c #jcg4e #j #j ,m>* #fi4dcd4f #c4hej4jbe4j #jdd4eaa4a #j ,april #db4cae4d #c4icc4cbb4baa4add4dbb4baa4a ,may #hh4dbf4a #d4cej4jab4e #jcc4c #j #j ,june #he4jfj4jbe4jfj4jdj4jaj4jdd4dcc4caa4a ,july #cd4h #h4g #d4d 444 444 444#cc4caa4a #j ,augu/ #ej4jae4d #g4g 444 444 444#dj4jaj4j #j ,septemb] #dc4eba4h #h4gbe4jbe4jab4e #j #j #j ,octob] #cf4dac4f #jah4b #j #j #j #j #j ,novemb] #d4e #j #jaj4j #j #j #j #j #j ,decemb] #ch4ebc4a #g4gcf4dcf4dah4bcc4cbb4baa4a ---------------------------------------- ---------- #aiaj4 ---------------------------------------- ---------- ,janu>y #gb4jdh4jbd4jdd4ecc4caa4age4jbe4j #j ,febru>y #dg4hdc4eag4dfc4bba4a #e4cdj4jcj4j #e4j ,m>* #cc4cad4h #jcj4haa4a #c4gbi4fbb4b #g4d ,april #da4gcc4cbj4hdj4jcb4jaf4jch4ebc4aae4d ,may #dg4hag4d #jeb4jbj4j #jcf4jaf4j #d4j ,june #ie4ehf4dca4hhj4hdf4bai4bfd4jbh4j #h4j ---------------------------------------- --------- ,fiscal ye>s3 ---------------------------------------- ---------- #aije-jf #ce4bai4di4c #j4j #c4b #e4b #f4d #d4i #a4g #aijf-jg #fa4edc4fi4b #g4g #i4b #b4c #a4a #i4h #j4g #aijg-jh #dd4fca4cc4j #b4c #b4c #c4a #d4d #b4a #d4a #aijh-ji #ch4ibj4ch4d #j4j #e4j #j #g4d #h4e #b4h #aiji-aj #de4ebf4ij4a #e4c #d4j #h4h #g4i #i4h #f4b ,mc,millan ,p>k ,filt]$-,tap wat] ,res]voir wat] f v>- 7appli$ res]- i\s p>ts ,mon?4 wat]74 voir4 ( city4 ----------------------------- #aj #a #j4a #aj #a #aj #a c4c4c4c4c4c4c4c4c4c4c4c4c4c4 ---------------------------------------- -- #aijf4 ---------------------------------------- -- ,janu>y#a #ee4fbb4b #j #g4b #j 444 444 ,febru>y #h4c #d4b #j #j #j 444 444 ,m>* #ah4e #g4dc4g #j #j #j #j ,april #cb4j #h4j #j #d4j #j #j #j ,may #j #j #j #j #j #j #j ,june #bc4a #g4gc4h #j #j #c4a #j ,july #i4e #j #j #d4h #j 444 444 ,augu/ #fc4jcc4c #j #g4d #c4gaa4i #e4a ,septemb] #cb4jab4j #j #h4j #j #c4a #j ,octob] #dh4abb4bc4g #c4g #jac4j #c4g ,novemb] #bj4jab4j #j #h4j #j #j #j ,decemb] #bj4h #h4cd4b #af4g #h4c #g4e #j ---------------------------------------- -- #aijg4 ---------------------------------------- -- ,janu>y #fi4ccd4fc4h #ai4baa4ead4j #j ,febru>y #ag4d #d4d #j #j #j #b4i #j ,m>* #cj4h #g4g #j #j #j #b4a #j ,april #df4aai4bc4h #c4h #j #c4b #j ,may #bc4a #j #j #j #j #a4d #j ,june #dj4j #h4j #j #j #j #j #j ,july #c4h #j #j #j #j #a4d #a4d ,augu/ #ad4h #c4g #j #j #j #j #j ,septemb] #af4j #d4j #j #d4j #j #a4g #j ,octob] #ch4gbe4hi4g #f4e #jab4e #b4h ,novemb] #eh4fag4cc4e #j #j #d4i #j ,decemb] #de4bbi4j #j #ai4c #c4bab4i #d4c ---------------------------------------- -- #aijh4 ---------------------------------------- -- ,janu>y #bb4f #i4gc4b #c4b #j #a4i #a4i ,febru>y #j #j #j #j #j #j #j ,m>* #i4g #j #j #j #j #j #j ,april #f4g #c4c #j #j #j #j #j ,may #de4aaf4b #j #j #j #j #j ,june #j #j #j #j #j #j #j ,july #f4d #f4d #j #j #j #j #j ,augu/ #ab4i #c4b #j #j #j #a4f #j ,septemb] #af4gaj4j #j #j #j #d4c #j ,octob] #i4g #f4dc4b #j #j #j #j ,novemb] #f4f #j #j #j #j #j #j ,decemb] #c4b #j #j #j #j #j #j ---------------------------------------- -- #aiji4 ---------------------------------------- -- ,janu>y #c4b #c4b #j #c4b #j #j #j ,febru>y #g4a #c4fc4f #j #j #c4d #c4d ,m>* #cb4cai4dc4b #f4e #j #b4h #a4d ,april #cf4faj4j #j #j #j #j #j ,may #ab4i #c4b #j #j #j #j #j ,june #ec4cbj4j #j #j #j #a4d #j ,july #be4hab4i #j #j #j #j #j ,augu/ #bb4f #f4e #c4b #j #j #j #j ,septemb] #ac4c #c4c #j #j #j #j #j ,octob] #c4b #j #j #j #j #j #j ,novemb] #j #j #j #j #j #j #j ,decemb] #bi4jbb4f #j #i4g #f4e #g4c #a4e ---------------------------------------- -- #aiaj4 ---------------------------------------- -- ,janu>y #fa4cce4ei4g #e4h #c4bae4i #c4b ,febru>y #cb4b #g4a #j #c4f #j #j #j ,m>* #ab4i #c4b #j #j #j #j #j ,april #bc4cac4c #j #j #j #j #j ,may #af4aab4i #j #j #j #j #j ,june #dc4c #f4g #j #j #j #a4d #j ---------------------------------------- -- ,fiscal ye>s3 ---------------------------------------- -- #aije-jf #d4c #h4c 4#h 4#c #a4h #a4c #j #aijf-jg #b4e #c4j 4#d 4#e #b4a #e4d #a4j #aijg-jh #b4b #i4d 4#d 4#h #j4c #c4a #j4i #aijh-ji #f4g #g4a 4#h 4#h #j #a4b #j4d #aiji-aj #c4f #j4d 4#a 4#c #j4h #b4b #j4d ,footnote #a3 ,presumptive te/s4 ,table #f--,summ>y ( ,sanit>y ,*emicals ,analyses ( ,weekly ,samples1 ,july #a/1 #aiji1 to ,june #cj?1 #aiaj4 7,results 9 ,p>ts p] ,million47 ,columns3 ,a - ,turbidity#a ,b - ,free ,c - ,album9oid ,d - ,total ,e - ,nitrites ,f - ,nitrates ,g - ,h>dness ,h - ,alkal9ity ,i - ,*lor9e 7,a7 ,maximum4 ,ammonia4 ,nitrog5 z3 ,res]voirs4 ,a -------------------------- ,g ,h ,i ,b ,c ,d ,e ,f ---------------------------------------- ------------------------ ,dalec>lia inlet #b1ajjj4jcdj4bfdj4bhjj4jjgjj4deabj4jajf4 je4d ,dalec>lia outlet#b #bjjj4jcdj4ahjj4bjfj4jjejj4gjaae4jaje4he 4g ,georget[n outlet#c #baej4jcjj4ahbj4ahbj4jjfjj4fjaae4jaje4jd 4i ,mc,millan ,p>k outlet #abjj4jbhj4abfj4aedj4jjfjj4feaah4jajd4dd 4b ,filt]$ wat] #ij4jafj4jghj4jhfj4jjajj4gjaai4eajf4cd4e ---------------------------------------- ----------------------- ,table #f--7;,cont9u$47 7,b7 ,m9imum4 ,ammonia4 ,nitrog5 z3 ,res]voirs4 ,a -------------------------- ,g ,h ,i ,b ,c ,d ,e ,f ---------------------------------------- ------------------------ ,dalec>lia inlet #gj4jjjj4jafj4jafj4jjjjj4jj #eb4i #ci4e #a4j ,dalec>lia outlet#b #gj4jjjj4jdjj4jdjj4jjjjj4jj #ed4c #ch4b #j4i ,georget[n outlet#c #gj4jjjj4jddj4jddj4jjjjj4jj #ea4d #dj4f #j4g ,mc,millan ,p>k outlet #bj4jjjj4jajj4jajj4jjajj4jj #ea4d #ch4e #j4b ,filt]$ wat] #jj4jjjj4jjjj4jjjj4jjjjj4jj #eb4i #dj4c #j4d ---------------------------------------- ------------------------ ,table #f--7;,cont9u$47 7,c7 ,av]age4 ,ammonia4 ,nitrog5 z3 ,res]voirs4 ,a -------------------------- ,g ,h ,i ,b ,c ,d ,e ,f ---------------------------------------- ------------------------ ,dalec>lia inlet #hf #j4jjfj4afgj4aacj4jjbgj4ai #ic4b #ha4d #b4i ,dalec>lia outlet#b #cj #j4jjhj4ajfj4aadj4jjbcj4ah #ie4e #gi4e #c4d ,georget[n outlet#c #bi #j4jjej4ajaj4ajfj4jjbgj4ah #ic4d #hj4i #b4i ,mc,millan ,p>k outlet #ah #j4jjdj4jggj4jhaj4jjbgj4ag #id4j #hc4j #b4g ,filt]$ wat] #a #j4jjbj4jbgj4jbij4jjjjj4ai #id4i #hd4j #b4h ,footnote #a3 ,summ>y ( daily samples ( wat]4 ,footnote #b3 ,res]voir out ( s]vice f ,july #a/ to ,septemb] #ac?1 #aiji4 ,footnote #c3 ,res]voir out ( s]vice f ,septemb] #aj? to ,octob] #d?1 #aiji4 ,no *emical det]m9ations 7 made dur+ ,febru>y1 ,m>*1 ,april1 & ,may1 #aiaj1 on acc\nt ( ! re>rangem5t ( ! laboratory & equipm5t4 ,table #g--;,daily ,results at ,pump+ ,/ation4 7,a7 ,million gallons pump$3 ,pressure ---------------------------------- at s&- ,lift wa%] ,to filt]s4 ,to s& wa%]s4 to pumps1 ,mon?4 filt]s4 p] ------------------------------ squ>e ,max4 ,m94,ave4 ,max4 ,m94 ,ave4 in*4 ---------------------------------------- --------------------- #aiji4 ---------------------------------------- --------------------- ,july #gf4afeg4fefd4jea4adjj4bihj4gcj #bd4ah #aaj4j ,augu/ #fi4caed4ddfa4dbj4fbij4aegj4dda #bb4ah #aaj4j ,septemb] #ff4jbeb4hbfi4cbj4hcaj4bjgj4egb #bb4bf #aaj4j ,octob] #gh4ejdh4abei4ahj4gfaj4jfjj4dfg #ba4hd #aaj4j ,novemb] #fd4ibdi4hcee4bej4dfhj4adaj4bgb #bj4di #aaj4j ,decemb] #fg4hcdh4cbef4ggj4cjgj4jcij4agd #bj4ed #aaj4j ---------------------------------------- --------------------- #aiaj4 ---------------------------------------- --------------------- ,janu>y #gj4jdea4jbfb4dij4diij4jjhj4aef #bb4dc #aaj4j ,febru>y #gj4giee4aifj4bhj4bhdj4jdaj4agc #ba4dd #aab4c ,m>* #ei4aaea4fdef4jdj4djij4jfcj4aga #ai4gf #abj4j ,april #ff4ecec4gieh4cbj4gaej4afgj4dgd #bj4gh #abj4j ,may #fa4iced4eeeg4gfj4ebej4jeij4bea #bj4cj #abj4j ,june #gj4diej4dbeh4cgj4bhaj4abdj4bjg #ba4ai #aag4c ---------------------------------------- --------------------- ,fiscal ye>s3 ---------------------------------------- --------------------- #aiji-aj #gh4ejdh4abei4aia4adjj4jjhj4cgc #ba4de #aac4c ---------------------------------------- --------------------- #aije-jfa #hj4eieg4ahff4jgb4jfbj4jhij4gdg #ba4ga #ajg4d #aijf-jg #hj4bieg4ddff4hib4abjj4jbcj4ehj #ba4fj #abj4h #aijg-jh #hj4ched4cefd4iaj4gcej4jagj4cdg #bb4bj #abe4j #aijh-ji #gh4icdg4hcfa4dgj4hgej4jfjj4dec #bb4eb #abb4c ---------------------------------------- --------------------- ,coal consum$,/ation duty1 p] day 9 p] #ajj lb4 ( ,mon?4 tons4 coal consum$4 ------------------------- ,max4,m94,ave4,max4,m94,ave4 -------------------------------------- #aiji4 -------------------------------------- ,july #ac4d #h4daj4hfg4heb4cfa4d ,augu/ #ab4d #h4jaj4afd4bdi4eef4f ,septemb] #ab4g #h4gaj4efa4jdh4iee4a ,octob] #ac4d #h4jaj4cei4fdi4aec4f ,novemb] #aa4c #g4i #i4bee4fde4gea4a ,decemb] #aj4c #h4e #i4efa4jde4dej4d -------------------------------------- #aiaj4 -------------------------------------- ,janu>y #ab4g #i4aaj4dei4fdi4hed4i ,febru>y #ab4c #h4gaj4beg4ddd4hea4e ,m>* #aj4e #g4h #i4bec4bde4bdi4h ,april #aa4a #h4a #i4geh4gdg4bec4g ,may #aj4a #g4d #h4hfj4gdh4aed4i ,june #ab4c #g4d #i4afj4adi4ied4d -------------------------------------- ,fiscal ye>s3 -------------------------------------- #aiji-aj #ac4d #g4d #i4hfg4hdd4hed4j ------------------------------------- #aije-jfa #ad4h #f4d #h4igi4fdh4bfb4h #aijf-jg #ae4j #g4jaj4jga4fdf4eeh4f #aijg-jh #ab4j #g4bi4f #gj4gea4cfj4c #aijh-ji #ac4b #g4jaj4jgd4jde4geg4g ------------------------------------- ,footnote #a3 ,raw wat] %ut (f f city supply on ,octob] #e?4 ,table #g--7;,cont9u$47 7,b7 ,duty p] ,co/ ( #ajj lb4 coal p] ,fiscal ,"n ( coal us$4 ,co/ p] ( coal #a1jjj1jjj ft- ,ye>4 ton4 consum$4lb4 ( "w p]=m$ ---------------------------------------- ----------------------- #aije-jf ,george's ,creek ,big ,ve9 #c4cd #fb4h #j4jjbch #aijf-jg ,george's ,creek ,big ,ve9 #c4dc #eh4f #j4jjbfa #aijg-jh ,george's ,creek ,big ,ve9 #c4ge #fj4c #j4jjbgh #aijh-ji ,or5da #c4dg #eg4g #j4jjbfh #aiji-aj ,or5da #ac4ae #ed4j #j4jjbee ,footnote #a3 ,correct$ = increase or decrease 9 a% & ,briti% !rmal units1 z det]m9$ by ,unit$ ,/ates ,geological ,survey4 ,table #h--;,av]age ,consumption ( ,wat] = ,tw5ty-f\r ,h\rs1 ,p] ,million ,gallons4 ,fiscal ye>s4 ,mon?4 ---------------------------------------- - #aijc4aijd4aije4aijf4aijg4aijh4aiji4aiaj 4 ---------------------------------------- ----------- ,july #ei4hjfa4ejfc4bjfi4hjfi4ahfh4fdga4jhfd4j e ,augu/ #ei4jjei4gjfg4gjga4djfh4jcfg4gdfh4adfa4d b ,septemb] #ef4ejfa4ajfg4ijga4cjfi4hbfh4icfe4hcfj4c b ,octob] #eh4gjei4ajfc4ijfh4djfi4adff4dffe4hiei4a h ,novemb] #ed4gjeh4fjfb4ajff4ajfe4eafa4edfj4jfee4b e ,decemb] #fj4gjfj4ajgj4cjfg4bjfe4gafb4bieg4iief4g g ,janu>y #fj4ajfe4cjge4ajfe4cjfg4fbfc4cfeg4gbfb4d i ,febru>y #ei4cjfg4hjhf4jjfh4gjgd4fhfh4agee4dbfj4b h ,m>* #ee4cjfj4jjfg4fjfd4cjfd4bcei4fcee4caef4j d ,april #ee4ajeg4bjfc4ajfb4gjfc4defa4eaeh4aieh4c b ,may #eg4gjfj4hjff4cjfe4fjfb4dgfb4ifei4beeg4g f ,june #ei4ejfb4cjgj4fjfg4hjfc4ecfg4iffj4abeh4c g ---------------------------------------- ----------- ,av]age #eh4jcfa4ajfh4gjfg4djff4ijfd4iafa4dgei4a i ,! l5g? ( runs1 dep? ( scrap+1 etc41 aft] ! scrap+ or rak+1 are %[n 9 ,tables #aj & #aa4 ,s& ,h&l+4--,= ! fir/ ?ree ye>s ( op]ation1 ! s& 0 c>ri$ f ! s& b9s 9 c>ts & dump$ ?r\gh ! num]\s manholes ( ! filt]s on *utes :i* c\ld be revolv$ 9 v>i\s directions1 9 ord] to facilitate ! spread+ ( ! s& ev5ly ov] ! surface ( ! filt]4 ,ab\t a ye> ago1 h[ev]1 ?is me?od 0 *ang$1 by sub/itut+ s& ejectors = ! c>ts4 ,by ?is me?od1 an ejector is ei!r atta*$ to1 or plac$ directly "u1 ! outlet gate ( ! s& b91 ! gate is op5$1 & ! ejector is />t$4 ,f ?is ejector1 ! s& is c>ri$ back ?r\gh ! l9e ( #d-;94 fix$ pipe1 & "o or m l5g?s ( #c-;94 hose1 to ! po9t ( dis*>ge 9 ! filt] b$ :i* is be+ re-s&$4 ,table #i4 ,columns3 ,a - ,july4 ,b - ,augu/4 ,c - ,septemb]4 ,d - ,octob]4 ,e - ,novemb]4 ,f - ,decemb]4 ,g - ,janu>y4 ,h - ,febru>y4 ,i - ,m>*4 ,j - ,april4 ,k - ,may4 ,l - ,june4 7,a7 ,numb] ( ,dea?s f ,typhoid ,fev]1 by ,mon?s1 9 ! ,di/rict ( ,columbia = ! ,la/ ,f\rte5 ,fiscal ,ye>s4 ,fiscal ye>4 ,a ,b ,c ,d ,e ,f ,g ,h ,i ,j ,k ,l ,total4 ---------------------------------------- ------------------ #ahif-ig #h #ae #be #be #ah #af #ac #d #d #d #f #i #adg #ahig-ih #aj #af #ah #aj #i #ah #h #d #b #i #f #bj #acj #ahih-ii #bd #bb #bb #bh #ba #af #aj #d #g #f #c #f #afi #ahii-aijj #i #ch #cj #bh #bg #bf #ag #f #h #aj #e #ab #aic #aija-jb #af #cc #bh #ba #bb #af #ai #h #ab #i #ac #i #bjf #aijb-jc #ba #ci #be #cb #ai #bj #i #e #i #f #f #c #aid #aijc-jd #ag #bf #ah #ai #h #ad #e #e #f #aj #h #h #add #aijd-je #af #bb #be #ad #aa #i #aa #a #e #g #a #c #abe #aije-jfaae #cj #bc #bf #ad #f #f #d #e #d #aj #i #aeb #aijf-jg #ba #cb #ba #be #ag #d #g #f #d #f #g #b #aeb #aijg-jh #aj #ah #ag #ai #aa #g #d #a #a #h #h #c #ajg #aijh-ji #ae #ac #bc #ag #af #ac #af #h #c #h #g #g #adf #aiji-aj #ab #ab #ag #ab #ab #b #c #d #g #e #e #d #ie ---------------------------------------- ------------------ ,av]age #ae4cbe4ebb4iba4eaf4fac4ai4fd4de4hf4gf4d g4eaee4d ---------------------------------------- ------------------ ,table #i--7;,cont9u$47 ,columns3 ,a - ,july4 ,b - ,augu/4 ,c - ,septemb]4 ,d - ,octob]4 ,e - ,novemb]4 ,f - ,decemb]4 ,g - ,janu>y4 ,h - ,febru>y4 ,i - ,m>*4 ,j - ,april4 ,k - ,may4 ,l - ,june4 ,m - ,annual dea? rate4 7,b7 ,numb] ( ,dea?s f ,typhoid ,fev] ,r$uc$ to ,dea? ,rates p] #ajj1jjj ,inhabitants p] ,ye>4 ,fiscal ye>4 ,a ,b ,c ,d ,e ,f ,g ,h ,i ,j ,k ,l ,m ---------------------------------------- ---------- #ahif-ig #ce #feajiaji #gh #gj #ef #ag #ag #ag #bf #ci #ec #ahig-ih #dc #fi #gh #dc #ci #gh #ca #ag #h #ch #be #he #df #ahih-ii #ajb #ic #icaai #hi #fh #db #ag #bi #be #ab #bf #ei #ahii-aijj #cgaehabeaafaabajh #fi #bd #cc #da #bj #di #gd #aijj-ja #hbafgaahajbaad #fi #bh #h #cb #h #af #dj #fe #aija-jb #fdacbaab #hd #hh #fd #ge #ca #dg #ce #ea #ce #fh #aijb-jc #hcaec #ihabf #ge #gi #ce #ai #ce #bc #bc #ab #fc #aijc-jd #ffajj #fi #gc #ca #ed #ai #ai #bc #ch #cj #cj #df #aijd-je #fa #hc #ie #ec #db #cd #da #d #ai #bf #d #aa #ci #aije-jf #efaaa #he #ig #eb #bb #bb #ae #ah #ae #cf #cc #dg #aijf-jg #fiaje #fi #hb #ef #ac #bd #bj #ac #bj #bd #g #db #aijg-jh #ce #fd #fj #fg #ci #be #ad #d #d #bh #bh #aa #cb #aijh-ji #ec #de #hj #fj #ef #de #ef #bh #aj #bh #bd #bd #dc #aiji-aj #db #db #fj #db #db #g #aa #ad #bd #ag #ag #ad #bh ---------------------------------------- ---------- ,av]age mon?ly #ei #ii #hi #hd #fe #ec #ch #bd #bb #bf #bd #cj444 dea? rate4 ,footnote #a3 ,filt]$ wat] suppli$ s9ce ,octob]1 #aije4 ,illu/ration3 ,figure #c--,wa%+ton ,aqu$uct1 ,d4 ,c41 ,filt]ation ,plant4 ,s& ,h&l+1 ,sy/em4 ,illu/ration3 ,figure #d--,wa%+ton ,aqu$uct1 ,d4 ,c41 ,filtration ,plant4 ,wa%] ,s&-,h&l+1 ,sy/em4 ,illu/ration3 ,figure #e--,wa%+ton ,aqu$uct1 ,d4 ,c41 ,filtration ,plant4 ,ejector ,s&-,h&l+1 ,sy/em4 ,table #aj--,p]iods ( ,op]ation1 & ,quantities ,filt]$4 ,numb] ( ,numb] ( days s9ce previ\s3 filt] runs ---------------------------------------- --- end$ aft]3 ,scrap+4 ,rak+4 ,mon?4 ---------------------------------------- ----------- ,scrap- ,rak- ,max4 ,m94 ,ave4 ,max4 ,m94 ,ave4 +4 +4 ---------------------------------------- ------------------------ #aiji4 ---------------------------------------- ------------------------ ,july #ad #j #hi #dd #fg4d #j #j #j ,augu/ #h #j #gd #ea #fj4d #j #j #j ,septemb] #ac #j #ih #ec #fh4c #j #j #j ,octob] #ah #e #ha #cb #ei4i #dc #cc #ci4d ,novemb] #h #b #gi #dd #ec4d #dg #cg #db4j ,decemb] #c #d #fb #fa #fa4c #fc #ej #eg4c ---------------------------------------- ------------------------ #aiaj4 ---------------------------------------- ------------------------ ,janu>y #i #d #ie #gi #hh4j #hh #gb #gg4j ,febru>y #a #d #ii #ii #ii4j #ic #ea #ga4j ,m>* #c #d #abj #aaj #aac4g #ajh #aja #ajd4c ,april #aj #ab #abf #fb #hd4h #abi #ba #fe4c ,may #c #b #hf #ch #fi4g #ee #cb #dc4e ,june #ac #b #ajj #fa #gi4g #abi #gh #ajc4e ---------------------------------------- ----------------------- ,ye> #aiji-aj #ajc #ci #abf #cb #ga4a #abi #ba #ff4f ---------------------------------------- ----------------------- ,fiscal ye>s3 ---------------------------------------- ------------------------ #aije-jf #ga #j #aie #ch #ia4a #j #j #j #aijf-jg #aja #d #aii #bd #gg4j #cb #ad #ba4g #aijg-jh #adc #gg #ahj #aa #ed4i #fc #g #bh4f #aijh-ji #abh #ej #ace #aa #di4i #ic #ac #cd4b ,million gallons filt]$ s9ce previ\s3 ---------------------------------------- ---------------- ,mon?4 ,scrap+4 ,rak+4 ---------------------------------------- ----------- ,max4 ,m94 ,ave4 ,max4 ,m94 ,ave4 ---------------------------------------- ------------------------ #aiji4 ---------------------------------------- ------------------------ ,july #bbi4ja #ajf4bg #afc4bhi #j #j #j ,augu/ #age4ed #abd4id #aeb4eha #j #j #j ,septemb] #bcg4eb #aad4cg #afa4gjb #j #j #j ,octob] #bjf4ji #gh4gh #acb4cei #if4ej #ga4ea #hb4gjh ,novemb] #afh4ai #hb4cb #aab4fjc #ii4jj #ij4bc #id4fae ,decemb] #ace4gg #abh4cc #acb4fdg #add4ce #ajf4aa #abe4idj ---------------------------------------- ------------------------ #aiaj4 ---------------------------------------- ------------------------ ,janu>y #bjd4ch #adf4eh #agh4dfa #ahi4dh #aeb4cc #agj4gce ,febru>y #bje4gc #bje4gc #bje4gcj #aib4ih #aah4he #aeh4hij ,m>* #bge4if #beg4cf #bfe4dic #bdi4fh #bbd4di #bch4iic ,april #bie4if #ajd4ac #aha4igb #cjg4eg #de4bb #adb4ddh ,may #ahf4fd #ha4ff #aej4bcj #ajb4ae #fi4gi #he4igh ,june #bac4gj #acj4he #aga4jei #aha4be #afg4hd #agd4edj ---------------------------------------- ------------------------ ,ye> #aiji-aj #bie4if #ha4ff #aei4aea #cjg4eg #de4bb #adc4hcb ---------------------------------------- ------------------------ ,fiscal ye>s3 ---------------------------------------- ------------------------ #aije-jf #dig4de #aaf4ff #bdj4cgi #j #j #j #aijf-jg #dff4ab #fi4gf #bbj4fic #ajc4bh #cb4ac #gf4hgj #aijg-jh #dgg4ai #bh4bj #adf4iab #afe4be #ag4jh #ge4gge #aijh-ji #bih4jh #ci4bf #abe4fag #bdd4ai #da4da #hh4dci ,9 re-s&+ a filt]1 x is fir/ fill$ ) wat] to ! propos$ dep? ( ! s& lay]4 ,! outlet end ( ! hose is connect$ to a #c-;94 pipe :i* is support$ on a boat1 & ! s& is dis*>g$ ?r\gh ?is pipe at ! po9t requir$4 ,"w is fir/ begun at ! f> end ( ! filt]1 & x is gradually fill$ by sw++ ! boat f side to side & back+ x by degrees to ! front end4 ,at fir/ x 0 fe>$ t a small quantity ( mud w\ld be deposit$ on ! surface ( ! old s&1 & t ?is mud w\ld ultimately cause subsurface clogg+4 ,= ?is reason1 :5 ?is me?od 0 fir/ adopt$1 a man 0 requir$ to rake ! s& v ?or\ghly 9 front ( ! dis*>ge4 ,lat]1 x 0 f\nd t by giv+ ! end ( ! dis*>ge pipe a slope ( ab\t #de degrees d[nw>d f ! horizontal1 ! =ce ( ! curr5t ( s& & wat] c\ld be dep5d$ on to cut ! old surface ( s& to any requir$ dep?1 & move x ahead toge!r ) ! new s&1 ?us completely break+ up ! possible mud lay] betwe5 ! old & new s& lay]s4 ,aft] hav+ us$ ?is me?od almo/ exclusively = #ae mon?s1 9 :i* "t elev5 filt]s h be5 re-s&$1 & #bd1eca cu4 yd4 ( s& h be5 replac$1 !re seems to be no indication ( an increas$ initial loss ( head4 ,! s& is v compact1 & has no app>5t t5d5cy to sep>ate into diff]5t sizes4 ,! g5]al appe>ance is simil> to t ( v f9e s& on ! sea%ore4 ,! filt]s re-s&$ 9 ?is way h be5 consid]ably m effici5t ?an ^? 9 :i* ! s& 0 replac$ ) c>ts1 & z yet1 no h>mful results h be5 not$4 ,! rate at :i* ! s& is replac$ is %[n 9 ,table #ab1 & ! co/ ( labor = s& h&l+ is giv5 9 detail 9 ,table #ad1 :i* %[s t q a p]ceptible sav+ has be5 effect$ by ! hydraulic me?od4 ,! figures %[+ ! co/ = s& h&l+ d n include any *>ge = ! quantity ( wat] us$1 t item hav+ be5 c>ri$ on ! pump+-/ation acc\nt4 ,table #aa--,quantities ( ,s& ,remov$4 ,no4 ( filt]s ,cubic y>ds :5 la/ scrap$ :5 la/ treatm5t 03 treatm5t 03 ,mon?4 ---------------------------------------- ------- ,scrap+4 ,rak+4 ,scrap+4,rak+4-------------------------- - ,max4,m94,ave4 ,max4,m94,ave4 ---------------------------------------- ----------------- #aiji4 ---------------------------------------- ----------------- ,july #ad #j #cch #aba #aij4f #j #j #j ,augu/ #h #j #cef #adi #bah4e #j #j #j ,septemb] #h #j #ebd #ig #agh4f #j #j #j ,octob] #i #e #aej #ic #aae4hcja #aba #afi4j ,novemb] #b #b #acd #hh #aaa4jacb #ha #ajf4e ,decemb] #j #b #j #j #j #acc #abf #abi4e ---------------------------------------- ----------------- #aiaj4 ---------------------------------------- ----------------- ,janu>y #b #d #aee #aab #acc4eaie #aba #adg4h ,febru>y #j #d #j #j #j #cij #afj #bbe4h ,m>* #a #d #dhi #dhi #dhi4jbfb #agi #bad4c ,april #d #ab #agb #hd #aai4cbcj #adf #agh4h ,may #a #b #cbj #cbj #cbj4jbdi #bda #bde4j ,june #j #b #j #j #j #bjc #aij #aif4e ---------------------------------------- ----------------- ,ye> #aiji-aj #di #cg #ebd #hd #agf4gcij #ha #aha4j ---------------------------------------- ----------------- ,fiscal ,ye>s3 ---------------------------------------- ----------------- #aije-jf #ga #j #fjj #ga #bej4j #j #j #j #aijf-jg #id #b #ecf #eb #bei4jcih #bgf #ccg4j #aijg-jh #ha #ec #ebg #df #aij4bdaa #ce #aah4d #aijh-ji #ib #ej #ehj #ee #afi4edgb #ha #agg4e ,dep?1 9 in*es1 :5 la/ treatm5t 03 ------------------------------- ,mon?4 ,scrap+4 ,rak+4 --------------------------- ,max4,m94,ave4 ,max4,m94,ave4 ---------------------------------------- - #aiji4 ---------------------------------------- - ,july #b4eaj4ija4daej #j #j ,augu/ #b4fea4aaa4fcaj #j #j ,septemb] #c4ijj4gba4ccjj #j #j ,octob] #a4abj4fij4hfbb4bdj4ija4bef ,novemb] #a4jjj4fej4hbej4ihj4fjj4gij ,decemb] #j #j #j #j4iij4idj4ife ---------------------------------------- - #aiaj4 ---------------------------------------- - ,janu>y #a4aej4hcj4iija4dej4ija4ajj ,febru>y #j #j #j #b4ija4aia4fgh ,m>* #c4fdc4fdc4fdja4iea4cca4eic ,april #a4bhj4fbj4hhea4gaa4jia4cca ,may #b4chb4chb4chja4hea4gia4hbj ,june #j #j #j #a4eaa4daa4dfj ---------------------------------------- - ,ye> #aiji-aj #c4ijj4fba4cadb4ijj4fja4cgc ---------------------------------------- - ,fiscal ,ye>s3 ---------------------------------------- - #aije-jf #d4dgj4eca4giij #j #j #aijf-jg #d4jjj4efa4icab4ieb4jeb4ejj #aijg-jh #c4ibj4baa4ejgc4jfj4baj4hha #aijh-ji #d4caj4daa4beic4eaj4fja4cag ,table #ab--,rates ( ,s& ,h&l+4 ,s& remov$ f filt]s4 ,s& replac$ 9 filt]s4 ---------------------------------------- ---------------- ,ejector ,cubic ,av]age ,ejector ,cubic ,av]age ,date4 h\rs4 y>ds ( rate 9 h\rs4 y>ds (rate 9 s& cubic y>ds s& cubic remov$ p] h\r remov$ y>ds p] h\r ---------------------------------------- ------------------------- #aijf4 ---------------------------------------- ------------------------- ,april #di #bec #e4b 444 444 444 ,may #chj #b1eaa #f4f 444 444 444 ,june #efg #c1bhj #e4h 444 444 444 ,july #ica #e1cgf #e4h 444 444 444 ,augu/ #aje #ecc #e4a 444 444 444 ,septemb] #cae #a1hib #f4j 444 444 444 ,octob] #a1jfg #e1agc #e4h 444 444 444 ,novemb] #afh #ice #e4f 444 444 444 ,decemb] #bjc #a1jgc #e4c 444 444 444 ---------------------------------------- ------------------------- #aijg4 ---------------------------------------- ------------------------- ,janu>y #cii #b1igd #g4c 444 444 444 ,febru>y #adj #a1aci #h4a 444 444 444 ,m>* #aae #hgh #g4f 444 444 444 ,april #dbg #c1ajc #g4c 444 444 444 ,may #acc #ici #g4j 444 444 444 ,june #aje #fgd #f4d 444 444 444 ,july #g #df #f4f 444 444 444 ,augu/ #ij #egd #f4d 444 444 444 ,septemb] #cjf #a1cif #f4e 444 444 444 ,octob] #bgc #a1gja #f4b 444 444 444 ,novemb] #bjb #a1beh #f4h 444 444 444 ,decemb] #cjd #b1ach #e4i 444 444 444 ---------------------------------------- ------------------------- #aijh4 ---------------------------------------- ------------------------- ,janu>y #edf #c1gjh #f4h 444 444 444 ,febru>y #ih #ggf #g4i 444 444 444 ,m>* #cae #b1hcb #i4j 444 444 444 ,april #dfi #c1gge #h4a 444 444 444 ,may #ahb #a1dad #g4h 444 444 444 ,june #bhj #b1jeg #g4d 444 444 444 ,july #bhj-a_/b #b1fhc #i4f 444 444 444 ,augu/ #cbg-a_/b #b1hjh #h4f 444 444 444 ,septemb] #djb #c1cga #h4d 444 444 444 ,octob] #cjh #b1fif #h4g 444 444 444 ,novemb] #dg-a_/b #ccc #g4j 444 444 444 ,decemb] #aec-c_/d #a1bfh #h4c 444 444 444 ---------------------------------------- ------------------------- #aiji4 ---------------------------------------- ------------------------- ,janu>y #aai-a_/b #a1jee #h4h 444 444 444 ,febru>y #afa-a_/b #a1dgi #i4b 444 444 444 ,m>* #add #a1dfe #aj4b 444 444 444 ,april #bad-c_/d #b1bfj #aj4e #ahh #b1dje #ab4h ,may #bai-c_/d #b1bbc #aj4a #aij #b1aif #aa4e ,june #cee #c1jif #h4g #bdc #c1jed #ab4f ,july #cab-a_/d #b1gjg #h4g #dbe-a_/b #d1jej #i4e ,augu/ #bah-c_/d #a1iee #i4j #fd-a_/b #fbj #i4f ,septemb] #agb-a_/b #a1cfj #g4i #djh #b1hdb #g4j ,octob] #bjc #a1hgj #i4b #bfa-a_/d #b1cej #i4j ,novemb] #ed #cig #g4d #j #j 444 ,decemb] #fb #chb #f4b #j #j 444 ---------------------------------------- ------------------------- #aiaj4 ---------------------------------------- ------------------------- ,janu>y #ajd #gjc #f4h #j #j 444 ,febru>y #ajf-a_/b #a1jeh #i4i #bh-a_/d #cga #ac4a ,m>* #ih #ihe #aj4j #gb #a1jjh #ad4j ,april #bfh-c_/d #b1heb #aj4g #acd-a_/d #b1aei #af4a ,may #eh-c_/d #fic #aa4h #aga-c_/d #c1jdb #ag4g ,june #eh-c_/d #fdb #aj4i #i-c_/d #aff #ag4j ,! co/ = pump+ wat] = s& h&l+1 includ+ all labor1 mat]ials1 & repairs1 am\nts to #j4jf p] cu4 yd4 ( s& eject$ & wa%$1 & #j4jc p] cu4 yd4 = replac+4 ,9 addition to ! wat] us$ = c>ry+ ! s& :i* is be+ replac$1 x is cu/om>y to keep a slight upw>d fl[ 9 ! filt]1 ?us us+ ab\t #ejj1jjj gal4 ( filt]$ wat] p] day = ?is purpose4 ,assum+ ! value ( ?is wat] to be ! total co/ = pump+1 filt]+1 etc41 or #c4hj p] #a1jjj1jjj gal41 ! co/ p] cubic y>d ( s& replac$ w\ld be ab\t #j4jb :5 "o ejector is us$1 & #j4ja :5 two are 9 op]ation4 ,x is n consid]$ absolutely necess>y to h an upw>d fl[ ( wat] 9 ! filt] :i* is be+ re-s&$1 & x is n always done4 ,x 0 us$1 h[ev]1 z an additional safegu>d aga9/ ! =mation ( a /ratum ( mud betwe5 ! old & new lay]s ( s& :ile ! hydraulic me?od 0 9 an exp]im5tal /age4 ,! quantities ( s& remov$ f ! filt]s p] scrap+ & ! rates ( s& h&l+ are %[n 9 ,tables #aa & #ab4 ,co/ ( ,op]ation4--,x is frequ5tly difficult to comp>e ! relative co/ ( correspond+ items = diff]5t plants1 because ( ! diff]5t me?ods ( divid+ ! co/ & ! v>y+ op9ions ( ! (ficials z to :at %\ld prop]ly be *>g$ to ea* item4 ,9 ord] t ! data may be 9 suffici5t detail to p]mit x to be re>rang$ to comp>e ) o!r plants1 a li/ ( employees & *>ges = supplies is giv5 9 ,table #ac4 ,?is li/ acc\nts = ! entire appropriation = ! c>e & ma9t5ance ( ! filtration plant1 includ+ pump+ ! wat] to ! filt]s1 p>k+ & c>+ = ! gr\nds1 build+s1 roads1 sidewalks1 etc4 ,! co/ = ! v>i\s items p] million gallons pump$ to ! filt]s is %[n 9 ,table #ad1 & ! co/ p] cubic y>d ( s& h&l$ 9 ,table #ae4 ,prelim9>y ,treatm5t4--,be=e ! pres5t filtration plant 0 design$1 ,rudolph ,h]+1 ,george ,w4 ,full]1 & ,all5 ,haz51 ,memb]s1 ,am4 ,soc4 ,c4 ,e41 made an inve/igation & report4 ,?is report 0 dat$ ,febru>y #ah?1 #aija1 & conta9$ ! foll[+ p>agraph3 ,9 consid]ation ( ! full evid5ce1 we recomm5d ! con/ruction ( a complete sy/em ( sl[ or s& filt]s1 ) su* auxili>y works z may be necess>y = prelim9>y s$im5tation1 & ! use ( a coagulant = "p ( ! "t4 ,!re is no reason to believe t ! use ( ?is coagulant w 9 any degree affect ! :olesom5ess ( ! wat]4 ,not)/&+ ?is op9ion1 consid]able prejudice exi/$ among ! citiz5s ( ,wa%+ton aga9/ ! use ( a coagulant1 &1 z f9ally pass$1 ! bill provid+ = ! con/ruction ( ! filt]s did n include an appropriation = ! coagulant4 ,table #ac--,li/ ( ,employees1 ,rates ( ,pay1 & ,approximate ,co/ = ,supplies4 #a ,sup]9t5d5t #c1jjj4jj #a ,*ief ,*emi/ & ,assi/ant ,sup]9t5d5t #b1ajj4jj #a ,fir/ ,assi/ant ,*emi/ #a1ejj4jj #a ,second ,assi/ant ,*emi/ #a1jjj4jj #a ,/5ograph] & ,cl]k #a1bjj4jj #a ,surveyor #a1bjj4jj #a ,laboratory ,help] #gbj4jj #a ,janitor #fjj4jj #a ,*ief ,/eam ,eng9e] #a1hjj4jj #a ,fir/ ,assi/ant ,/eam ,eng9e] #a1ddj4jj #a ,second ,assi/ant ,/eam ,eng9e] #a1jhj4jj #c ,oil]s1 at #ijj ea* #b1gjj4jj #c ,firem51 at #ijj ea* #b1gjj4jj #c ,labor]s1 at #edj ea* #a1fbj4jj #a ,filt] ,=eman #a1bjj4jj #b ,=em51 at #ijj ea* #a1hjj4jj #a ,timekeep] #ijj4jj #c ,wat*m5 & ,gauge ,t5d]s1 at #ijj ea* #b1gjj4jj #a ,ma*9i/ #a1adj4jj #a ,blacksmi? #ijj4jj #a ,/orekeep] #ijj4jj #a ,pa9t] #ijj4jj #a ,me*anic #ijj4jj #a ,electrician #ijj4jj #d ,skill$ ,labor]s at #fjj ea* #b1djj4jj #a ,wat*man & ,special ,(fic] #ijj4jj #a ,record] #gbj4jj #bg ,labor]s1 at #a4ej p] day = #cjj days #ab1aej4jj #c ,teams1 at #b4jj p] day = #bjj days #a1bjj4jj ,laboratory & (fice supplies #b1gjj4jj ,filt] supplies1 tools1 hose1 repair ( roads1 p>ks1 %rubs1 etc4 #h1hbj4jj ,pump+ /ation supplies1 oil1 wa/e1 pack+1 repairs1 etc4 #c1egj4jj #c1fjj tons ( coal1 at #c4ae p] ton #aa1cdj4jj ,*>ges 9 ,u4 ,s4 ,eng9e] ,(fice1 labor #b1ijj4jj ,*>ges 9 ,u4 ,s4 ,eng9e] ,(fice1 mat]ials #djj4jj ---------------------------------------- --------------------------- ,total #hb1jjj4jj ,! results obta9$ f op]at+ ! filt]s be+ su* z to ju/ify ! conclusions 9 ! report ref]r$ to1 an exp]im5tal plant 0 con/ruct$ = ! purpose ( /udy+ ! effici5cy ( v>i\s me?ods ( prelim9>y treatm5t ( ! wat]4 ,?is plant consi/$ ( ?ree cyl9drical concrete filt] tanks1 ea* #aj ft4 9 diamet]4 ,^! tanks 7 fill$ ) ! lay]s ( gravel & s& necess>y to make !m repres5t z accurately z possible ! l>ge sl[ s& units ( ! ma9 filtration plant4 ,means 7 also provid$ = giv+ a prelim9>y treatm5t to ! wat] supply+ ea* ( ^! exp]im5tal sl[ s& filt]s4 ,9 two cases1 ! prelim9>y treatm5t 0 rapid filtration1 :ile ! ?ird consi/$ ( s$im5tation & coagulation4 ,! s$im5tation tank 0 ( suffici5t size1 :5 comp>$ ) ! area ( ! exp]im5tal sl[ s& filt]1 to repres5t ! ,georget[n & ,mc,millan ,p>k ,res]voirs :5 us$ 9 connection ) ! l>ge filt]s4 ,! fir/ prelim9>y filt] 0 v simil> 9 con/ruction & op]ation to a me*anical filt]4 ,! s& = ?is filt] 0 tak5 f ! ma9 filt]s1 &1 consequ5tly1 0 f9] ?an is g5]ally us$ 9 me*anical filt]s4 ,! second prelim9>y filt] 0 a ,maign5 scrubb]4 ,x consi/$ ( a cyl9drical concrete tank1 #d ft4 9 diamet] & #h-a_/b ft4 deep1 :i* conta9$ #ab 94 ( cobble-/ones on ! bottom1 !n1 successively1 #ab 94 ( egg-size coke1 #ab 94 ( /ove-size coke1 #bd 94 ( nut-size coke1 & #bd 94 ( sponge clipp+s z ! f9al or top lay]4 ,table #ad--;,co/ ,p] ,million ,gallons ,filt]$4 7,a7 ,labor4 ,(fice ,filt] & ,pump+ op]ations3 ,mon?4 laboratory4 /ation4 ------------------ ,s& ,repairs h&l+4 etc4 ---------------------------------------- ----------- #aiji4 ---------------------------------------- ----------- ,july #j4gc #j4eg #j4hf 444 ,augu/ #j4ge #j4fd #j4ei 444 ,septemb] #j4hc #j4fg #j4hj 444 ,octob] #j4gb #j4ff #j4gc 444 ,novemb] #j4hg #j4gf #j4db 444 ,decemb] #j4ij #j4fi #j4bg 444 ---------------------------------------- ----------- #aiaj4 ---------------------------------------- ----------- ,janu>y #j4ha #j4fc #j4cc 444 ,febru>y #j4id #j4gd #j4ce #j4jg ,m>* #j4ib #j4ha #j4cj #j4jg ,april #j4ic #j4hc #j4di #j4jc ,may #j4hf #j4gb #j4cf #j4jc ,june #j4hh #j4fg #j4ch 444 ---------------------------------------- ----------- ,av]age #j4hd #j4gj #j4bg #aj4be ---------------------------------------- ----------- ,fiscal ye>s3 ---------------------------------------- ----------- #aije-aijf #j4de #j4de #j4dg #j4jb #aijf-aijg #j4eg #j4eg #j4eh #j4ba #aijg-aijh #j4gj #j4ef #j4db #j4cb #aijh-aiji #j4gb #j4fa #j4da #j4cd ---------------------------------------- ----------- ,p>k+ ,mon?4 7c>e ( ,exp]im5tal ,ma9 ,total4 gr\nds74 filt]s4 ,(fice4 ---------------------------------------- ----------------- #aiji4 ---------------------------------------- ----------------- ,july #j4ca 444 #j4ae #b4fb ,augu/ #j4ga 444 #j4ad #b4hc ,septemb] #j4ea 444 #j4ag #b4ih ,octob] #j4cd 444 #j4jh #b4ec ,novemb] #j4ch 444 #j4ah #b4fa ,decemb] #j4dj 444 #j4ab #b4ch ---------------------------------------- ----------------- #aiaj4 ---------------------------------------- ----------------- ,janu>y #j4ad 444 #j4aj #b4ja ,febru>y #j4aa 444 #j4af #b4cg ,m>* #j4ah 444 #j4ac #b4da ,april #j4cf 444 #j4ac #b4gg ,may #j4ee 444 #j4ah #b4gj ,june #j4ch 444 #j4ab #b4dc ---------------------------------------- ------------------ ,av]age #j4cf 444 #j4ad #b4ef ---------------------------------------- ------------------ ,fiscal ye>s3 ---------------------------------------- ----------------- #aije-aijf #j4ja 444 #j4ji #a4di #aijf-aijg #j4jg #j4jc #j4jd #b4jg #aijg-aijh #j4ae #j4ji #j4ji #b4cf #aijh-aiji #j4bb #j4ja #j4ac #b4dd ---------------------------------------- ------------------ ,table #ad--7;,cont9u$47 7,b7 ,mat]ials4 ,(fice ,filt] & ,pump+ op]ations3 ,mon?4 laboratory4 /ation4 ------------------ ,s& ,repairs h&l+4 etc4 ---------------------------------------- ----------- #aiji4 ---------------------------------------- ----------- ,july 444 444 #j4ja 444 ,augu/ #j4ja 444 444 444 ,septemb] #j4je #j4ca #j4jd 444 ,octob] #j4jh #j4aa #j4ac 444 ,novemb] #j4ac #j4gh #j4aj 444 ,decemb] #j4jc #j4ag #j4je 444 ---------------------------------------- ----------- #aiaj4 ---------------------------------------- ----------- ,janu>y #j4ab #j4gd #j4ad 444 ,febru>y #j4jg #a4hh #j4ah 444 ,m>* #j4bf #j4bh #j4ja 444 ,april #j4ah #a4bb #j4aj 444 ,may #j4jf #j4gb #j4jb 444 ,june #j4ed #b4bc 444 #bb4af ---------------------------------------- ----------- ,av]age #j4ac #j4fi #j4jb #cj4ba ---------------------------------------- ----------- ,fiscal ye>s3 ---------------------------------------- ----------- #aije-aijf #j4jd #j4ei #j4jb 444 #aijf-aijg #j4jc #j4fg #j4jh #j4bj #aijg-aijh #j4je #j4ed #j4jd #j4jg #aijh-aiji #j4aj #j4fi #j4je #j4ah ---------------------------------------- ----------- ,p>k+ ,mon?4 7c>e ( ,exp]im5tal ,ma9 ,total4 gr\nds71 filt]s4 ,(fice4 ---------------------------------------- ----------------- #aiji4 ---------------------------------------- ----------------- ,july 444 444 444 #j4ja ,augu/ #j4jg 444 #j4ja #j4ji ,septemb] #j4ja 444 #j4jc #j4dd ,octob] #j4df 444 #j4jb #j4hj ,novemb] #j4cd 444 #j4jb #a4cg ,decemb] #j4ja 444 #j4je #j4ca ---------------------------------------- ----------------- #aiaj4 ---------------------------------------- ----------------- ,janu>y #j4ja 444 444 #a4ja ,febru>y #j4ja 444 #j4ja #b4ae ,m>* 444 444 444 #j4ee ,april #j4bi 444 #j4jb #a4ha ,may #j4aa 444 #j4jb #j4ih ,june #j4df 444 #j4jd #e4dc ---------------------------------------- ------------------ ,av]age #j4ag 444 #j4jb #a4bd ---------------------------------------- ------------------ ,fiscal ye>s3 ---------------------------------------- ----------------- #aije-aijf 444 444 444 #j4fe #aijf-aijg #j4jb 444 #a4jj #aijg-aijh #j4jf 444 #j4ja #j4gg #aijh-aiji #j4ah 444 #j4jb #a4bb ---------------------------------------- ------------------ ,footnote #a3 #j4jb = new s&-h&l+ sy/em4 ,footnote #b3 #b4jb = new s&-h&l+ sy/em4 ,footnote #c3 #j4af = new s&-h&l+ sy/em4 ,table #ad--7;,cont9u$47 7,c7 ,totals4 ,(fice ,filt] & ,pump+ op]ations3 ,mon?4 laboratory4 /ation4 ------------------- ,s& ,repairs h&l+4 etc4 ---------------------------------------- ------------ #aiji4 ---------------------------------------- ------------ ,july #j4gc #j4eg #j4hg 444 ,augu/ #j4gf #j4fd #j4ei 444 ,septemb] #j4hh #j4ih #j4hd 444 ,octob] #j4hj #j4gg #j4hf 444 ,novemb] #a4jj #a4ed #j4eb 444 ,decemb] #j4ic #j4hf #j4cb 444 ---------------------------------------- ------------ #aiaj4 ---------------------------------------- ------------ ,janu>y #j4ic #a4cg #j4dg 444 ,febru>y #a4ja #b4fb #j4ec #j4jg ,m>* #a4ah #a4ji #j4ca #j4jg ,april #a4aa #b4je #j4ei #j4jc ,may #j4ib #a4dd #j4ch #j4jc ,june #a4db #b4ij #j4ch #b4af ---------------------------------------- ------------ ,av]age4 #j4ig #a4ci #j4bi #j4df ---------------------------------------- ------------ ,fiscal ye>s3 ---------------------------------------- ------------ #aije-aijf #j4di #a4jd #j4di #j4jb #aijf-aijg #j4fj #a4bd #j4ff #j4da #aijg-aijh #j4ge #a4ac #j4df #j4ci #aijh-aiji #j4hb #a4cj #j4df #j4eb ,p>k+ ,mon?4 7c>e ( ,exp]im5tal ,ma9 ,total4 gr\nds71 filt]s4 ,(fice4 ---------------------------------------- ----------------- #aiji4 ---------------------------------------- ----------------- ,jul #j4ca 444 #j4ae #b4fc ,augu/ #j4gh 444 #j4ae #b4ib ,septemb] #j4eb 444 #j4bj #c4db ,octob] #j4hj 444 #j4aj #c4cc ,novemb] #j4gb 444 #j4bj #c4ih ,decemb] #j4da 444 #j4ag #b4fi ---------------------------------------- ----------------- #aiaj4 ---------------------------------------- ----------------- ,janu>y #j4ae 444 #j4aj #c4jb ,febru>y #j4ab 444 #j4ag #d4eb ,m>* #j4ah 444 #j4ac #b4if ,april #j4fe 444 #j4ae #d4eh ,may #j4ff 444 #j4bj #c4fc ,june #j4hd 444 #j4af #g4hf ---------------------------------------- ----------------- ,av]age4 #j4eh 444 #j4af #c4hj ---------------------------------------- ----------------- ,fiscal ye>s3 ---------------------------------------- ----------------- #aije-aijf #j4ja 444 #j4ji #b4ad #aijf-aijg #j4ji #j4jc #j4jd #c4jg #aijg-aijh #j4ba #j4ji #j4aj #c4ac #aijh-aiji #j4dj #j4ja #j4ae #c4ff ,! two prelim9>y filt]s 7 op]at$ at a rate ( ab\t #ej1jjj1jjj gal4 p] acre p] day1 & ! ?ree sl[ s& filt]s at rates ( f #c1jjj1jjj to #d1jjj1jjj gal4 p] day4 ,?is plant 0 put 9 s]vice dur+ ! e>ly "p ( ,febru>y1 #aijg1 & 0 kept 9 practically cont9u\s op]ation until ! end ( ,july1 #aijh4 ,illu/ration3 ,figure #f--,wa%+ton ,aqu$uct1 ,d4 ,c41 ,exp]im5tal ,filt]s ,bel[ ,dalec>lia ,res]voir ,coagulat+ ,bas9s & ,app>atus4 ,table #ae--;,av]age ,co/ = ,labor = ,s& ,h&l+4 7,a7 ,p] ,million ,gallons ,pump$ ,to ,filt]4 ,mon?4 ,scrap- ,eject- ,wa%- ,smoo?-,rak+4 ,re- ,total4 +4 +4 +4 +4 s&+4 ---------------------------------------- ------------------------ #aiji4 ---------------------------------------- ------------------------ ,july #j4aj #j4ba #j4jc #j4jb 444 #j4ba #j4eg ,augu/ #j4jg #j4af #j4jc #j4ja 444 #j4jd #j4ca ,septemb] #j4je #j4ac #j4jb #j4ja #j4ja #j4bg #j4di ,octob] #j4jf #j4ae #j4jc #j4ja #j4jb #j4ab #j4ci ,novemb] #j4jb #j4jf 444 444 #j4jb 444 #j4gj ,decemb] #j4jb #j4jd #j4ja 444 #j4ja #j4ja #j4ji ---------------------------------------- ------------------------ #aiaj4 ---------------------------------------- ------------------------ ,janu>y #j4jd #j4jg 444 #j4ja #j4jb 444 #j4ad ,febru>y #j4jd #j4aj 444 #j4ja 444 #j4jb #j4ag ,m>* #j4jd #j4jf 444 #j4ja #j4ja #j4je #j4ag ,april #j4aj #j4ae #j4jd #j4ja #j4jb #j4jf #j4ch ,may #j4jb #j4jc #j4ja 444 #j4ja #j4aa #j4ah ,june #j4jb #j4jd 444 444 #j4jb #j4ja #j4ji ---------------------------------------- ------------------------ ,av]age #j4je #j4aj #j4ja #j4ja #j4ja #j4jh #j4bf ---------------------------------------- ------------------------ ,fiscal ye>s3 ---------------------------------------- ------------------------ #aije-jf #j4jf #j4bi #j4jb #j4jf 444 #j4jd #j4dg #aijf-jg #j4jg #j4bj #j4je #j4jb 444 #j4bd #j4eh #aijg-jh #j4ji #j4ad #j4jc #j4ja #j4jb #j4ac #j4db #aijh-ji #j4jg #j4ae #j4jc #j4ja #j4ja #j4ad #j4da ---------------------------------------- ------------------------ ,table #ae--7;,cont9u$47 7,b7 ,p] ,cubic ,y>d ( ,s&4 ,mon?4 ,scrap- ,eject- ,wa%- ,smoo?-,rak+4 ,re- ,total4 +4 +4 +4 +4 s&+4 ---------------------------------------- ------------------------ #aiji4 ---------------------------------------- ------------------------ ,july #j4jh #j4ae #j4jc #j4ja 444 #j4aj #j4cg ,augu/ #j4jg #j4ae #j4jc #j4ja 444 #j4aa #j4cg ,septemb] #j4jg #j4ag #j4jc #j4ja 444 #j4ag #j4de ,octob] #j4jf #j4ae #j4jc #j4ja 444 #j4ji #j4cd ,novemb] #j4aj #j4bc #j4jb #j4jb 444 444 #j4cg ,decemb] #j4ab #j4be #j4jd #j4jb 444 #j4jh #j4ea ---------------------------------------- ------------------------ #aiaj4 ---------------------------------------- ------------------------ ,janu>y #j4aj #j4ai 444 #j4jb 444 444 #j4ca ,febru>y #j4jg #j4ae 444 #j4ja 444 #j4ji #j4cb ,m>* #j4jf #j4aa 444 #j4jb 444 #j4jh #j4bg ,april #j4jg #j4ji #j4jc #j4ja 444 #j4je #j4be ,may #j4jf #j4ji #j4jc #j4ja 444 #j4jf #j4be ,june #j4jf #j4ab 444 #j4ja 444 #j4aj #j4bi ---------------------------------------- ------------------------ ,av]age #j4jg #j4ad #j4jb #j4ja 444 #j4aj #j4cd ---------------------------------------- ------------------------ ,fiscal ye>s3 ---------------------------------------- ------------------------ #aije-jf #j4jg #j4ce #j4jd #j4jg 444 #j4ad #j4fg #aijf-jg #j4jf #j4ai #j4jc #j4jb 444 #j4ag #j4dg #aijg-jh #j4ji #j4ae #j4jc #j4ja 444 #j4ad #j4db #aijh-ji #j4jf #j4ad #j4jc #j4ja 444 #j4ac #j4cg ,= conv5i5ce 9 ref]r+ to ! diff]5t sy/ems1 ! comb9$ rapid & sl[ s& filt] w be designat$ z ,filt] ,plant ,no4 #a1 ! comb9$ ,maign5 scrubb] & sl[ s& filt] z ,filt] ,plant ,no4 #b1 & ! comb9$ coagulat+ bas9 & sl[ s& bas9 z ,filt] ,plant ,no4 #c4 ,! l5g? ( run ( ,filt] ,plant ,no4 #a 0 relatively long at fir/4 ,! rapid rate ( filtration1 h[ev]1 t5d$ to c>ry ! clay1 :i* 0 susp5d$ 9 ! appli$ wat]1 to a consid]able dep? 9 ! filt]+ mat]ial1 s t ! runs gradually decreas$ 9 l5g? until !y 7 r$uc$ to ab\t ?ree days4 ,un=tunately1 x 0 necess>y to use unfilt]$ wat] = wa%+1 :i*1 toge!r ) ! great p5etration f ! appli$ wat]1 f9ally made x necess>y to remove all ! filt]+ mat]ials1 & wa% !m4 ,al?\gh ?is prelim9>y filt] 0 op]at$ at a high rate1 its effici5cy 0 q satisfactory4 ,9 fact1 at times :5 ! appli$ wat] 0 comp>atively good1 v little "w 0 left = ! sl[ s& filt]4 ,at times ( high turbidity1 h[ev]1 "s ( ! exce$+ly f9e mud 9 ! appli$ wat] pass$ ?r\gh ?is filt]1 z well z ! sl[ s& filt] connect$ ) x1 & x prov$ to be absolutely impossible to produce a cle> efflu5t at all times ) ?is comb9ation4 ,filt] ,plant ,no4 #b prov$ m economical & conv5i5t 9 op]ation1 b some:at less effici5t ?an ,filt] ,plant ,no4 #a4 ,nei!r filt] c\ld be dep5d$ on to give a cle> efflu5t :5 ! appli$ wat] 0 turbid4 ,9 ! op]ation ( ,filt] ,plant ,no4 #c1 sulphate ( alum9a 0 us$ :5 ! appli$ wat] conta9$ too mu* turbidity to be treat$ satisfactorily by sl[ s& filt]s4 ,:5 ! wat] 0 comp>atively cle>1 ei!r "o ( ! ?ree sy/ems1 or sl[ s& filtration alone1 0 entirely satisfactory4 ,at times ( high turbidity1 h[ev]1 ,filt] ,plant ,no4 #c 0 ! only "o :i* c\ld be dep5d$ on to produce a cle> efflu5t4 ,a fair comp>ison betwe5 ! results ( ! ?ree sy/ems :5 treat+ turbid wat] 9 ,janu>y1 #aijh1 is giv5 9 ,table #af4 ,table #af %[s v cle>ly t nei!r ,filt] ,plant ,no4 #a nor ,no4 #b w\ld prove at all satisfactory :5 treat+ turbid wat]1 :ile ,no4 #c c\ld be dep5d$ on "u all conditions4 ,! results ( op]ation are %[n 9 detail 9 ,tables #ag1 #ah1 & #ai4 ,x w be notic$ 9 ,table #ag1 t on ,m>* #aj?1 #aijh1 ,filt] ,plant ,no4 #a 0 put out ( s]vice & a ,pue* sy/em ( prelim9>y filt]s 0 sub/itut$ = x4 ,! ,pue* prelim9>y filt]s consi/$ ( five units conta9+ gravel ( v>y+ sizes ?r\gh :i* ! wat] 0 filt]$ successively be=e x 0 f9ally appli$ to ! f9al sl[ s& filt]4 ,a g5]al idea ( ?is sy/em may be obta9$ by ref]r+ to ,figure #h4 ,table #af--,turbidity ,results ) ,exp]im5tal ,filt]s1 ,dur+ ,p]iod ( ,high ,turbidity1 ,janu>y1 #aijh4 ,columns3 ,a - ,efflu5t prelim9>y filt]4 ,b - ,efflu5t s& filt]4 ,c - ,efflu5t prelim9>y filt]4 ,d - ,efflu5t s& filt]4 ,e - ,efflu5t coagulant bas94 ,f - ,efflu5t s& filt]4 ,raw ,filt] ,no4 #a4;,filt] ,no4 #b4;,filt] ,no4 #c4 ,date4 wat]4----------------------------------- -- ,a ,b ,c ,d ,e ,f ---------------------------------------- --------------- ,janu>y #ab? #dj #aj #a #ab #a #b #j ,janu>y #ac? #aaj #de #b #ea #b #b #j ,janu>y #ad? #baj #ie #c #aac #d #b #j ,janu>y #ae? #cbe #aij #ab #bbb #ae #c #j ,janu>y #af? #cfj #baj #cg #bdg #db #e #j ,janu>y #ag? #bdb #abb #bd #adg #bf #f #j ,janu>y #ah? #acg 444 444 #gc #g #f #j ,janu>y #ai? #aag #dj #ab clean- 444 #e #j + ,janu>y #bj? #gb #ca #f s& 444 clean- #j filt] + ,janu>y #ba/ #ee #bj #d #be #d s& 444 ,janu>y #bb;d #di #ag #c #ba #d filt] 444 ,janu>y #bc;d #dj #ab #c #ae #c #c #j ,janu>y #bd? #dj #aa #c #ac #c #c #j ,x is un=tunate t ?is sy/em 0 n 9 op]ation 9 ,janu>y1 #aijh1 :5 ! wat] 0 cold & turbid4 ,! results1 h[ev]1 indicate t x w\ld be no m successful ?an ei!r ,filt] ,plant ,no4 #a or ,no4 #b4 ,exp]im5tal ,rate ,/udies4--,9 ,septemb]1 #aijh1 an exp]im5tal plant consi/+ ( six small filt]s 0 put 9 op]ation4 ,! object ( ^! exp]im5ts 0 to /udy ! relative effici5cies & co/ = ! op]ation ( sl[ s& filt]s :5 op]at$ at diff]5t rates4 ,! units ( ! plant consi/$ ( cyl9drical galvaniz$-iron tanks #d ft4 9 diamet] & #i ft4 high4 ,! filt] s& 9 ^! tanks 0 tak5 f ! supply = ! ma9 filt]s4 ,x 0 support$ on gravel lay]s & suppli$ ) "u-dra9s ( suitable sizes = ! propos$ rate ( fl[ 9 ea* case4 ,! units ( ! exp]im5tal plant 7 designat$ z ,nos4 #a1 #b1 #c1 #d1 #e1 & #f1 & x 0 ! orig9al int5tion to op]ate !m at rates ( #a1jjj1jjj1 #c1jjj1jjj1 #f1jjj1jjj1 #aj1jjj1jjj1 #cj1jjj1jjj1 & #ajj1jjj1jjj gal4 p] acre daily1 respectively4 ,?is s*$ule ( rates 0 c>ri$ out 9 a g5]al way ) all ! filt]s1 ) ! exception ( ,nos4 #e & #f4 ,= ^!1 ! rates 7 f\nd to be high] ?an c\ld be ma9ta9$ = any great l5g? ( "t1 ow+ to ! deep] p5etration ( ! mud 9 ! filt] s&1 :i* caus$ high initial losses ( head1 %ort runs1 & deep scrap+s4 ,a rate ( ab\t #cj1jjj1jjj gal4 0 ma9ta9$ 9 ! case ( ,filt] ,no4 #e f ! "t x 0 />t$ on ,septemb] #i?1 #aijh1 until ,novemb] #h?1 #aiji1 :5 x 0 r$uc$ to ab\t #ag1jjj1jjj gal41 :i* rate 0 ma9ta9$ !reaft] until ! filt] 0 %ut d[n 9 ,febru>y1 #aiaj4 ,illu/ration3 ,figure #g--,plan ( ,filt]-,h\se & ,equipm5t4 ,9 ! case ( ,filt] ,no4 #f1 x 0 f\nd impossible to ma9ta9 a rate ( #ajj1jjj1jjj gal4 = m ?an a v few days at a "t4 ,x 0 />t$ at ab\t ?is rate1 h[ev]1 at ! beg9n+ ( ea* run1 & kept z high z possible = ! rema9d] ( ! "t dur+ ! fir/ sev5 runs4 ,at ! end ( ! sev5? run1 on ,octob] #ag?1 #aijh1 ! filt] 0 giv5 a v deep scrap+ & re-s&$4 ,illu/ration3 ,figure #h--;,diagrammatic ,sket* ,%[+ ,arrangem5ts = ,te/+ ,pue* ,sy/em ( ,wat] ,filtration at ,wa%+ton ,d4 ,c41 ,u4 ,s4 ,a4 ,! lay] ( clean s& re/or$ ! orig9al capacity1 & ! filt] 0 op]at$ z be=e1 b ) gradually decreas+ rates until ,decemb]1 #aijh1 :5 ! rate 0 r$uc$ to ab\t #dj1jjj1jjj gal4 ,ev5 ?is l[] rate 0 too high to be ma9ta9$ )\t remov+ & replac+ a l>ge "p ( ! s&4 ,! rates1 !re=e1 gradually decreas$ to ab\t #bc1jjj1jjj gal4 on ,m>* #ac?1 #aiji1 :5 ! filt] 0 aga9 re-s&$4 ,aft] ?is re-s&+ ! rate 0 r$uc$ to ab\t #bj1jjj1jjj gal41 & ! filt] 0 op]at$ at approximately t rate until x 0 aga9 re-s&$ on ,novemb] #ac?1 #aiji1 :5 ! rate 0 aga9 r$uc$ to ab\t #ad1jjj1jjj gal41 :i* 0 ma9ta9$ until ! filt] 0 put out ( s]vice on ,febru>y #bh?1 #aiaj4 ,?is exp]im5tal plant 0 9 s]vice f ,septemb]1 #aijh1 to ! latt] "p ( ,febru>y1 #aiaj1 or = ab\t #a-a_/b ye>s1 & ! lead+ results are summ>iz$ 9 ,table #bj4 ,table #ag--,record ( ,exp]im5tal ,filt] ,plant ,no4 #a4 ,columns3 ,a - ,rate1 millions ( gallons p] acre daily4 ,b - ,loss ( head4 ,c - ,rate1 millions ( gallons p] acre daily4 ,d - ,loss ( head4 ,e - ,appli$ wat]4 ,f - ,efflu5t prelim9>y filt]4 ,g - ,efflu5t f9al filt]4 ,h - ,appli$ wat]4 ,i - ,efflu5t prelim9>y filt]4 ,j - ,efflu5t f9al filt]4 ,prelim9>y ,f9al ,turbidity4 ,bact]ia4 ,filt]4 ,filt]4 ,date4 ---------------------------------------- ------------- ,a ,b ,c ,d ,e ,f ,g ,h ,i ,j ---------------------------------------- -------------------- #aijg4 ---------------------------------------- -------------------- ,feb4 #hai4dj #j4ga #c4aj #j4ag 444 444 444 #a1ajj #b1jjjb1ejj ,feb4 #iba4ej #j4ha #c4aa #j4af 444 444 444 #bjj #iej #ejj ,feb4 #ajbj4fj #j4ie #c4jd #j4ad 444 444 444 444 444 444 ,feb4 #aabj4aj #a4jh #c4jc #j4ab #ab #c #b #fjj #ijja1cjj ,feb4 #abai4hj #a4bc #c4jb #j4ac #ad #d #b #fej #fej #fej ,feb4 #acai4ej #a4ch #b4if #j4ab #ae #f #b #fjj #fjj #iej ,feb4 #adba4bj #a4fg #c4ba #j4aa #ae #d #b #fej #gjj #hjj ,feb4 #aebe4dj #b4jc #c4ij #j4ac #ab #d #b #fjj #eej #hjj ,feb4 #afbe4jj #b4bc #c4hi #j4ab #ad #c #b #hej #eej #ejj ,feb4 #ag ,%ut d[n = *anges 9 size ( met] & pip+4 ,feb4 #ah 444 444 444 444 444 444 444 #a1bjj 444 #fej ,feb4 #bach4fj #a4ei #c4ic #j4ah #bj #d #b #a1hjj #a1ajj #gjj ,feb4 #bbch4jj #a4hd #c4ib #j4ae #ae #c #b ,holiday4 ,feb4 #bcdb4aj #b4cf #c4ie #j4ad #bj #e #b #a1fjj #fjj #bbj ,feb4 #bddg4ij #c4jd #c4ic #j4ac #bj #f #c ,sunday4 ,feb4 #be ,%ut d[n *ange met] #a1djj #hjj #dej f outlet to inlet4 ,feb4 #bg 444 #b4bd 444 #j4ac #ag #f #c #gjj #eej #bhj ,feb4 #bhdi4hj #b4ee #c4ij #j4ac #ae #f #c #hjj #dgj #bcj ---------------------------------------- -------------------- ,m>4 #aej4jj #b4ij #c4ic #j4ac #ae #e #c #fej #dej #adj ,m>4 #bej4bj #c4ba #c4ic #j4ac #ae #e #c #a1jjj #fej #bjj ,m>4 #cch4hj #c4ji #c4hi #j4ac #ca #h #c ,sunday4 ,m>4 #dej4jj #c4ed #c4ic #j4ab #ce #aj #e #a1bjj 444 444 ,m>4 #eej4jj #d4ja #c4ij #j4ac #ace #ci #h #ac1jjj #c1gjj #fjj ,m>4 #fej4jj #d4hb #c4ij #j4ac #ace #ci #h #ah1jjj #d1ejj 444 ,m>4 #gej4jj #e4hi #c4ij #j4ac #ajb #cd #f #bd1jjj #e1jjjb1jjj ,m>4 #hej4jj #f4eh #c4ij #j4ac #ajj #be #d #bb1jjj #e1jjja1djj ,m>4 #iej4jj #g4ba #c4ic #j4ac #ij #be #d #bd1jjj #d1jjj #fej ,m>4 #ajej4jj #g4eb #c4ij #j4ac #hb #bb #e ,sunday4 ,wa%$4 ,m>4 #aaej4jj #j4hd #c4ij #j4ac #fh #ai #f #ah1jjj #b1ajj #cej ,m>4 #abej4jj #j4ie #c4if #j4ac #df #ai #d #aa1jjj #f1jjj #caj ,m>4 #acej4jj #a4ag #c4ii #j4ac #dj #ai #d #i1jjj #d1ijj #cjj ,m>4 #adej4jj #a4ec #d4ja #j4ac #ci #ag #d #e1ejj #a1cjj #acj ,m>4 #aeej4jj #b4bg #d4je #j4ac #ce #ae #d #f1ejj #a1ejj #fj ,m>4 #afej4jj #c4jh #d4jc #j4ac #fj #bj #d #e1jjj #a1bjj #ajj ,m>4 #agej4jj #d4bf #d4jc #j4ac #ace #ce #d ,sunday4 ,m>4 #ahej4jj #e4fe #d4jj #j4ac #agj #di #g #i1jjj #a1bjj #ie ,m>4 #aiej4jj #g4jb #d4ja #j4ac #abe #cg #f #g1jjj #fjj #ajj ,wa%$4 ,m>4 #bjej4jj #a4jh #c4ih #j4ac #ajb #cj #e #d1hjj #cjj #ge ,m>4 #baej4jj #a4bc #c4ih #j4ab #abe #cb #d #h1ejj #a1jjj #he ,m>4 #bbej4jj #a4df #d4jj #j4ac #aij #fe #d #g1ejj #a1ajj #de ,m>4 #bcej4jj #a4gf #c4ii #j4ac #ahj #fe #f #g1ejj #fjj #ee ,m>4 #bdej4jj #b4aa #c4ii #j4ab #adj #eb #g ,sunday4 ,m>4 #beej4jj #b4df #d4jj #j4aa #hh #cj #e #d1djj #ejj #he ,m>4 #bfej4jj #b4ge #d4jj #j4ab #fb #bb #d #c1fjj #cjj #fe ,m>4 #bgej4jj #c4jd #d4jh #j4ac #dg #ah #d #b1bjj #afj #fj ,m>4 #bhej4jj #c4ch #c4id #j4aa #ce #aj #c #a1cjj #ajj #ee ,m>4 #biej4jj #c4gj #d4jj #j4aa #bf #h #c #gjj #hj #bi ,m>4 #cjej4jj #d4db #d4jj #j4aa #be #f #c #caj #gj #ce ,m>4 #caej4jj #e4be #c4ii #j4aa #ba #e #b ,sunday4 ---------------------------------------- -------------------- ,apr4 #aej4jj #f4ad #d4jj #j4ab #bj #e #b #fjj #be #cj ,wa%$4 ,apr4 #bej4jj #b4aj #d4jj #j4ab #bd #e #b #bgj #bh #cb ,apr4 #cej4jj #c4jj #d4jj #j4ab #bd #e #b #dfj #bf #dc ,apr4 #dej4jj #d4ja #d4jj #j4ab #bj #e #b #bhj #bj #bf ,apr4 #eej4jj #e4ae #d4jj #j4ab #bj #d #b #dej #cg #da ,wa%$4 ,apr4 #fej4jj ,o4#gf #c4ei #j4ab #bj #d #b #cbj #f #cd ,apr4 #gej4jj ,o4#ii #c4dg #j4ab #bj #d #b ,sunday4 ,apr4 #hej4jj #a4ci #d4jc #j4ad #ah #c #b #ccj #aj #bj ,apr4 #iej4jj #b4jd #d4ja #j4ac #ah #c #b #adj #i #ce ,apr4 #ajej4jj #c4jc #d4jb #j4ac #cj #b #a #gej #dc #bi ,apr4 #aaej4jj #d4de #d4jb #j4ad #ff #a #a #d1jjj #ijj #bf ,apr4 #abej4jj #f4ad #d4ja #j4ac #gb #aa #b #ad1jjj #a #gjj #da ,wa%$4 ,apr4 #acej4jj #j4ie #d4jj #j4ad #hj #ba #b #ac1jjj #a #cjj #gj ,apr4 #adej4jj #a4ah #d4jj #j4ac #gg #be #c ,sunday4 ,apr4 #aeej4jj #a4eg #d4jj #j4ad #fb #ba #c #g1jjj #chj #ee ,apr4 #afej4jj #b4cc #d4jj #j4ae #dg #bj #c #c1fjj #afj #cc ,apr4 #agej4jj #c4cc #d4jj #j4ae #ci #ae #b #a1fjj #gj #ci ,apr4 #ahej4jj #d4ha #d4jj #j4af #cj #aj #b #a1haj #acj #cd ,apr4 #aiej4jj #f4bi #c4ii #j4af #be #g #b #gij #ej #cb ,wa%$4 ,apr4 #bjej4jj #j4ic #d4ja #j4af #bj #e #b #edj #bd #bh ,apr4 #baej4jj #a4cf #c4ig #j4af #bj #c #b ,sunday4 ,apr4 #bbej4jj #b4bb #d4jb #j4af #ah #b #a #bce #ae #bh ,apr4 #bcej4jj #c4cc #c4ii #j4ad #ae #b #a #agj #ad #af ,apr4 #bdej4jj #d4gh #c4ig #j4ae #ai #a #a #aej #cb #ad ,apr4 #beej4jj #f4dc #c4ij #j4ae #cd #a #a #gjj #bj #ah ,wa%$4 ,apr4 #bfej4jj ,o4#ig #c4ig #j4ad #df #b #a #a1bjj #af #af ,apr4 #bgej4jj #b4cg #d4jj #j4ad #eb #c #a #a1gjj #be #ag ,apr4 #bhej4jj #e4cc #c4ii #j4ad #de #d #a ,sunday4 ,wa%$4 ,apr4 #biej4jj #j4ha #c4ii #j4ad #dd #e #a #fjj #af #ag ,apr4 #cjej4jj #a4ge #c4ii #j4ad #ci #f #a #eej #bg #ab ---------------------------------------- -------------------- ,may #aej4jj #j4hj #c4ii #j4ad #ca #e #a #ejj #bd #aa ,wa%$4 ,may #bej4jj #a4ac #d4jj #j4ad #bd #d #a #ejj #ab #af ,may #cej4jj #b4ji #d4jj #j4ad #ai #c #a #bhj #cj #be ,may #dej4jj #c4hj #d4jj #j4ad #af #b #a #djj #bj #ab ,may #eej4jj #e4ch #d4jj #j4ad #ae #a #a ,sunday4 ,wa%$4 ,may #fej4jj #j4ia #c4ij #j4ad #ac #a #a #cij #ej #dj ,may #gej4jj #a4ef #c4ij #j4ad #ab #a #a #aij #ai #hj ,may #hej4jj #b4be #c4ii #j4ad #aj #a #a 444 444 444 ,may #iej4jj #c4cg #d4jj #j4ad #aj #a #a #cij #ba #ch ,may #ajej4jj #e4af #d4jj #j4ad #aj #a #a #cjj #ad #ac ,wa%$4 ,may #aaej4jj #a4jc #d4jj #j4ad #ab #a #a #cij #ac #ab ,may #abej4jj #a4hi #d4jj #j4ad #ag #a #a ,sunday4 ,may #acej4jj #c4hb #d4jj #j4ad #ce #b #a #fjj #cc #ae ,may #adej4jj #f4ca #d4jj #j4ad #ci #c #a #ejj #bg #g ,wa%$4 ,may #aeej4jj #j4he #d4jj #j4ad #ag #b #a #ejj #bj #bi ,may #afej4jj #a4db #c4ii #j4ad #bd #b #a #bij #ai #dj ,may #agej4jj #b4dg #c4ii #j4ad #ah #b #a #bfj #ai #af ,may #ahej4jj #d4ca #d4jj #j4ac #ae #a #a #aij #af #bj ,wa%$4 ,may #aiej4jj #j4hc #c4ii #j4ac #ab #a #a ,sunday4 ,may #bjej4jj #a4ff #d4jj #j4ac #ab #a #a #bfj #ag #da ,may #baej4jj #c4hc #d4jj #j4ac #af #a #a #bfj #bf #be ,wa%$4 ,may #bbej4jj #j4hb #c4ii #j4ac #bj #a #a #bhj #af #ai ,may #bcej4jj #a4fd #d4jj #j4ac #ae #a #a #acj #bj #bb ,may #bdej4jj #c4he #d4jj #j4ac #ae #a #a #agj #ag #cb ,wa%$4 ,may #beej4jj #j4hd #d4jj #j4ac #ae #a #a #cdj #be #ee ,may #bfej4jj #a4fg #c4ii #j4ac #ah #a #a ,sunday4 ,may #bgej4jj #c4jc #d4jj #j4ac #ac #a #a #baj #aj #dj ,wa%$4 ,may #bhej4jj #j4hg #d4ja #j4ac #af #a #a #bfj #bf #ee ,may #biej4jj #a4dc #d4ja #j4ac #af #a #a #ejj #ai #ej ,may #cjej4jj #b4ee #d4jj #j4ac #ad #a #a ,holiday4 ,may #caej4jj #d4ai #d4jj #j4ac #ag #a #a #chj #bb #ej ---------------------------------------- -------------------- ,june #aej4jj #f4bf #c4ii #j4ac #ae #a #a #ijj #bg #ej ,wa%$4 ,june #bej4jj #j4gh #c4ih #j4ac #ag #a #a ,sunday4 ,june #cej4jj #a4ai #d4jj #j4ac #bd #a #a #eej #da #ej ,june #dej4jj #b4ae #d4jj #j4ac #cg #b #a #f1ejj #aej #fj ,june #eej4jj #c4fg #d4ja #j4ac #fe #d #a #c1bjj #aej #df ,june #fej4jj #f4jf #d4jj #j4ad #gg #ab #a #a1ejj #fj #bg ,wa%$4 ,june #gej4jj #j4hf #d4jj #j4ad #fd #ai #a #b1ajj #fh #de ,june #hej4jj #a4da #d4jj #j4ad #df #af #a #fjj #ce #dd ,june #iej4jj #b4fb #d4ja #j4ad #dd #ab #a ,sunday4 ,june #ajej4jj #d4gi #d4jj #j4ad #cf #h #a #bdj #ca #ce ,wa%$4 ,june #aaej4jj #j4gg #d4jj #j4ad #cj #f #a #bhj #dg #dg ,june #abej4jj #a4bj #d4ja #j4ad #cd #f #a #ccj #gj #ee ,june #acej4jj #b4db #d4jj #j4ad #ce #h #a #dhj #dc #ge ,june #adej4jj #d4dd #d4jj #j4ae #ca #g #a #ddj #ee #de ,wa%$4 ,june #aeej4jj #j4hj #c4ii #j4ae #cb #f #a #dbj #ag #cd ,june #afej4jj #a4ae #d4jj #j4ae #bf #e #a ,sunday4 ,june #agej4jj #b4ae #c4ii #j4ad #bf #e #a #cdj #ee #cg ,june #ahej4jj #d4cf #d4jj #j4ad #ca #f #a #ddj #ad #adj ,wa%$4 ,june #aiej4jj #j4gi #d4ja #j4ae #cg #h #a #ejj #gj #bd ,june #bjej4jj #a4ai #d4jj #j4ae #cj #g #a #ccj #di #bg ,june #baej4jj #b4fe #c4ih #j4ad #be #e #a #agj #cj #ah ,june #bbej4jj #e4eh #d4jj #j4ad #bj #d #a #ajj #ah #ac ,wa%$4 ,june #bcej4jj #j4he #c4fb #j4ac #bf #c #a ,sunday4 ,june #bdej4jj #b4jb #c4ii #j4ac #adj #aa #a #a1gjj #bg #cf ,june #beej4jj #d4gg #c4ii #j4ac #acj #bf #a #djj #gj #bc ,wa%$4 ,june #bfej4jj #j4gc #d4ja #j4ac #hb #bg #a #gej #bjj #da ,june #bgej4jj #a4ag #d4ja #j4ac #fe #ah #a 444 444 444 ,june #bhej4jj #c4aj #c4ii #j4ac #dg #af #a 444 #bj 444 ,wa%$4 ,june #biej4jj #j4fg #c4ii #j4ac #cg #g #a #bbj #ce #bi ,june #cjej4jj #a4jb #d4jj #j4ac #cj #f #a ,sunday4 ---------------------------------------- -------------------- ,july #aej4jj #b4gj #c4ii #j4ac #cj #f #a #djj #df #c ,wa%$4 ,july #bej4jj #j4fi #d4jj #j4ac #cb #g #a #ahj #hj #ch ,july #cej4jj #a4ba #c4ii #j4ac #cf #h #a #cej #gj #ij ,july #dej4jj #c4dj #c4ii #j4ac #dd #aj #a ,holiday4 ,wa%$4 ,july #eej4jj #j4gg #c4ii #j4ac #dd #aa #a #eej #ahj #cd ,july #fej4jj #a4ai #d4ja #j4ac #ci #aj #a #bej #fj #bf ,july #gej4jj #c4gb #c4ii #j4ac #cd #h #a ,sunday4 ,wa%$4 ,july #hej4jj #j4gh #c4ig #j4ac #be #e #a #bbj #ca #ba ,july #iej4jj #a4bg #c4ih #j4ac #bb #d #a #ej #aj #i ,july #ajej4jj #c4aa #d4ji #j4ac #dg #i #a ,lo/4 ,wa%$4 ,july #aaej4jj #j4hc #c4ii #j4ac #ij #ai #a #aej #ai #h ,july #abej4jj #a4dg #c4ii #j4ac #ig #be #a #cjj #dj #bc ,july #acej4jj #c4fa #d4jj #j4ac #if #bi #a #bbj #dg #af ,wa%$4 ,july #adej4jj #j4hd #c4ii #j4ac #ij #cj #a ,sunday4 ,july #aeej4jj #a4cj #d4jj #j4ac #ie #cj #a #cge #ee #ba ,july #afej4jj #b4gb #c4ii #j4ad #abj #ce #a ,lo/4 #ij #ac ,july #agej4jj #e4jh #c4ii #j4ad #he #cb #a #bgj #b #aa ,wa%$4 ,july #ahej4jj #j4he #c4ii #j4ad #ef #bb #a #a1fge #gj #ej ,july #aiej4jj #a4dc #d4jj #j4ad #da #ab #a #dej #ie #bb ,july #bjej4jj #c4bc #c4ii #j4ad #fb #ai #a #cjj #ch #aa ,wa%$4 ,july #baej4jj #j4hj #c4ii #j4ad #fb #ba #a ,sunday4 ,july #bbej4jj #a4jf #c4ih #j4ad #hj #bf #a #a1djj #aej #g ,july #bcej4jj #b4ah #c4ii #j4ad #aje #cj #a #c1gjj ,lo/4 #aa ,july #bdej4jj #d4ie #c4ih #j4ae #ie #cj #a #ggj ,lo/4 #bb ,wa%$4 ,july #beej4jj #j4hd #c4ih #j4ae #gg #bb #a #bej #cc #aa ,july #bfej4jj #a4bb #c4ih #j4ae #fg #ai #a #adj #ajj #d ,july #bgej4jj #b4cf #d4jj #j4af #ed #ae #a #cjj #ie #g ,july #bhej4jj #d4gd #c4ih #j4af #df #ab #a ,sunday4 ,wa%$4 ,july #biej4jj #j4hc #c4ii #j4ag #cf #aj #a #dgj #aaj #ah ,july #cjej4jj #a4jb #d4jj #j4ag #bi #g #a ,plates lo/4 ,july #caej4jj #a4ff #d4jj #j4ag #ba #e #a ,plates lo/4 ---------------------------------------- -------------------- ,aug4 #adh4bj #b4ie #d4jj #j4ag #af #d #a ,plates lo/4 ,aug4 #bdf4dj #d4if #d4jj #j4ag #ae #b #a #acj #db #ac ,wa%$4 ,aug4 #cdb4fj #j4gi #d4jj #j4ag #af #a #a #abj #d #af ,aug4 #ddi4aj #j4ia #d4jj #j4ag #ba #a #a ,sunday4 ,aug4 #edi4aj #a4ei #d4jj #j4ag #bi #a #a #bcj #afj #aa ,aug4 #fdh4bj #c4af #d4jj #j4ag #cd #b #a #he #bjj #ab ,aug4 #gde4fj #e4fe #c4ii #j4ag #ba #b #a #bjj ,lo/ #d ,wa%$4 ,aug4 #hej4jj #j4hj #c4ii #j4ag #ai #b #a #ajj #gj #aa ,aug4 #idi4aj #j4id #d4jj #j4ag #af #a #a #ge #dd #i ,aug4 #ajdh4bj #a4ea #d4jj #j4ag #bd #a #a #fj #ac #f ,aug4 #aadh4bj #c4cb #d4jj #j4ag #fb #c #a ,sunday4 ,wa%$4 ,aug4 #abda4ij #j4hc #c4ii #j4ag #abj #ad #a #fbj #aaj #e ,aug4 #acdi4aj #a4ad #c4ii #j4ag #ajg #bi #a #hbj #ec #cf ,aug4 #addi4aj #a4gb #d4jj #j4ah #hb #cj #a #hej #afj #aaj ,aug4 #aedh4bj #c4cj #d4jj #j4ah #fe #bb #a #aej #cg #d ,aug4 #afdf4dj #j4hd #d4jj #j4ai #de #ae #a #bgj #aaj #ac ,aug4 #agdh4bj #a4je #d4jj #j4ai #ce #aj #a #cdj #aaj #f ,aug4 #ahej4jj #a4ed #d4jj #j4ai #ba #e #a ,sunday4 ,aug4 #aidi4aj #b4bi #d4jj #j4ai #ah #d #a #ahj #he #ac ,aug4 #bjdi4aj #c4gd #c4ii #j4ai #bj #b #a #baj #he #h ,wa%$4 ,aug4 #badd4aj #a4ja #c4ih #j4ai #bj #b #a #acjj #aae #i ,aug4 #bbde4fj #a4hf #d4jj #j4ai #bg #b #a #chjj #bfe #a ,aug4 #bcdg4cj #d4jh #c4ii #j4ai #di #b #a #bejj #gj #ac ,wa%$4 ,aug4 #bdda4cj #a4bi #c4ig #j4ai #cf #f #a #cijj #df #f ,aug4 #bedd4aj #b4aa #c4ih #j4bj #cd #g #a ,sunday4 ,aug4 #bfdh4bj #c4db #c4ii #j4bj #ba #e #a #gjj #adj #j ,aug4 #bgdh4bj #e4aj #d4jj #j4bj #ai #d #a #dgj #ajj #d ,wa%$4 ,aug4 #bhdf4dj #a4bh #d4jj #j4bj #ah #c #a #ejj #di #c ,aug4 #bida4ij #a4ij #d4jb #j4bj #ag #b #a #cfj #hj #j ,aug4 #cjde4fj #c4bc #d4jj #j4bj #ae #a #a #cbj #aij #a ,aug4 #cadf4dj #d4eg #d4jj #j4bj #ac #a #a #bjj #bj #c ---------------------------------------- -------------------- ,sept4 #aej4jj #e4ag #c4fe #j4bj #ad #a #a ,sunday4 ,sept4 #bdh4bj #e4ig #d4jj #j4bj #ab #a #a ,holiday4 ,wa%$4 ,sept4 #cdg4cj #a4ac #d4jj #j4bj #ab #a #a #cjj #i #a ,sept4 #ddh4bj #b4ja #d4jj #j4bj #af #a #a #fjj #fj #b ,sept4 #edf4dj #e4da #c4fg #j4bj #cd #a #j #cfj #gb 444 ,wa%$4 ,sept4 #fdj4fj #a4db #c4ih #j4bj #afj #ab #j #aejjj #adj #j ,sept4 #gdb4fj #e4ai #c4ii #j4bj #fd #ah #a #bjjj #acj #a ,wa%$4 ,sept4 #hdb4fj #a4be #d4jj #j4bj #ef #ah #a ,sunday4 ,sept4 #idf4dj #c4jg #d4jj #j4bb #ei #ah #a #bbj #hj #d ,wa%$4 ,sept4#ajde4fj #a4jb #c4ii #j4bc #eg #af #a #ahjjj #eg #h ,sept4#aadh4bj #b4cf #d4jj #j4bc #fe #ah #a #bgjj #ij #a ,wa%$4 ,sept4#abdd4aj #a4ad #c4ii #j4bd #gb #ah #a #ajjj #dg #d ,sept4#acdf4dj #c4fa #c4ii #j4be #hg #bj #a #bcjj #gg #e ,wa%$4 ,sept4#adch4bj #a4db #c4ig #j4bf #gb #ai #a #bdjj #hj #e ,sept4#aede4fj #d4bg #d4jj #j4bg #fe #ah #a ,sunday4 ,wa%$4 ,sept4#afdj4jj #a4jf #c4ii #j4bh #fe #ah #a ,lo/4 #bb,lo/4 ,sept4#agdf4dj #b4dh #d4ja #j4bh #eb #af #a #dbj #ge #a ,wa%$4 ,sept4#ahdf4dj #a4aa #d4jj #j4bh #fj #ac #a #ijj #cg #c ,sept4#aidf4dj #b4gf #d4jj #j4bh #he #af #a #bjjj #ahf #j ,wa%$4 ,sept4#bjdd4aj #a4ab #d4jj #j4ca #ajj #ai #a #dbjj #aaj #g ,sept4#badh4bj #b4jg #c4ii #j4cc #abj #bd #a #aajj #aaj #c ,wa%$4 ,sept4#bbdd4aj #a4cj #c4fg #j4cd #acg #bi #a ,sunday4 ,sept4#bcde4fj #c4gi #c4ii #j4ci #aab #be #a #bdjj #ej #b ,wa%$4 ,sept4#bdde4fj #a4ae #c4ig #j4dj #ajj #be #a #djjj #fi #d ,sept4#bedh4bj #b4jf #d4jj #j4db #dcb #ec #a #efjjj #fhj #j ,sept4#bf ,/opp$1 unable to wa% prelim9>y4 ,sept4#bhej4jj #a4gd #d4jj #j4ga #abg #ce #a 444 444 #cg ,wa%$4 ,sept4#bidd4aj #b4he #c4ii #j4hb #aje #ca #a ,sunday4 ,sept4#cjdd4ij #c4gh #c4ig #a4jd #aae #cb #a ,lo/4 ,lo/4 #afj ,wa%$4 ---------------------------------------- -------------------- ,oct4 #add4aj #a4bj #c4ih #a4cd #hb #bf #a #fjj #ahj #ee ,oct4 #bdi4aj #c4bb #c4ig #a4ed #fe #ai #a #d1djj #abj #e ,wa%$4 ,oct4 #cdd4aj #a4ca #c4ig #a4ef #ei #ag #a #ijj #ee #aj ,oct4 #ddi4aj #b4ig #c4ig #a4fe #ee #ae #a #hej #fj #f ,wa%$4 ,oct4 #edd4ij #a4ca #c4ih #a4ge #ei #af #a #b1jjj #aaj #ch ,oct4 #fdf4dj #c4fe #c4ii #a4hi #ei #ag #a ,sunday4 ,wa%$4 ,oct4 #gdd4ij #a4cd #c4ih #a4ii #eb #ac #a #a1bej #gj #ae ,oct4 #hdi4aj #c4di #c4ih #b4ag #ed #ac #a #aa1jjj #fe #f ,wa%$4 ,oct4 #idd4aj #a4bj #c4ig #b4cc #ea #ac #a #b1jjj #he #d ,oct4 #ajdi4aj #b4bb #c4ih #b4ee #ej #ab #a #hjj #cf #aj ,oct4 #aadf4dj #d4ei #d4jj #b4ea #dg #aa #a #b1jjj #eg #aj ,oct4 #ab ,%ut (f to remove s& 9 prelim9>y filt] 9 ord] to clean out ! "u-dra9s4 ---------------------------------------- -------------------- ,nov4 #eej4jj #a4ch #c4ig #c4di #ahe #ej #a 444 444 444 ,nov4 #fdh4bj #c4be #c4ih #c4gi #agj #eb #a #e1jjj #a1ejj #bdj ,wa%$4 ,nov4 #gde4fj #a4ah #c4ih #d4je #ajj #ce #a #ad1jjj #a1jjj #bbj ,nov4 #hdh4bj #d4jh #c4ii #d4cg #ie #cb #a #a1ijj #bgj #afj ,nov4 #idb4jj #f4eh #c4ih #d4ci #hj #bg #a #d1jjj #ejj #aij ,nov4 #aj ,%ut d[n = scrap+4 ,remov$ #bff1jjj cu4 cm4 ( s&4 ,nov4 #abej4jj #j4ih #c4ii #j4be #dj #aj #a 444 444 444 ,nov4 #acej4jj #a4ea #d4jj #j4bb #cf #h #a #a1fjj #gej #he ,nov4 #addh4bj #b4fj #d4jj #j4ba #db #aa #a #b1gjj #gjj #baj ,nov4 #aedg4cj #c4hj #d4jj #j4bj #ce #i #a #a1hjj #cej #ahj ,nov4 #afdg4cj #d4hg #d4jj #j4ai #bf #e #a #a1ajj #bjj #cd ,nov4 #agej4jj #e4ge #d4jj #j4ai #bj #d #a ,sunday4 ,nov4 #ahej4jj #f4da #d4jj #j4ai #ag #c #a #a1fjj #bij #ee ,wa%$4 ,nov4 #aidh4bj #a4jf #c4ii #j4bj #af #b #a #a1cjj #dhj #fj ,nov4 #bjdh4bj #b4je #c4ii #j4bj #de #c #a #f1ejj #c1gjj #hjj ,nov4 #badh4bj #c4dh #c4ii #j4bj #eb #i #a #i1ijj #d1jjj #cjj ,nov4 #bbdg4cj #d4he #c4ii #j4bj #fe #ag #a #aj1jjj #a1jjj #chj ,nov4 #bcdh4bj #f4aa #c4ii #j4bj #di #ae #a #ah1jjj #a1jjj #cbj ,wa%$4 ,nov4 #bddf4dj #c4ga #c4ih #j4bj #acd #bd #a ,sunday4 ,nov4 #be ,%ut d[n = fe> ( wa%+ prelim9>y ) su* muddy wat]4 ,nov4 #biej4jj #a4ee #d4jj #j4ba #hj #be #a 444 444 444 ,nov4 #cjdg4cj #c4ad #c4ih #j4bb #ed #af #a #c1hjj #iej #afj ---------------------------------------- -------------------- ,dec4 #adg4cj #d4dh #c4ih #j4bc #cg #aj #a ,sunday4 ,dec4 #bdg4cj #e4fc #c4ih #j4be #cf #f #a #b1ijj #eej #ij ,wa%$4 ,dec4 #cdf4dj #j4ih #c4ii #j4be #bi #f #a #b1ijj #dhj #ge ,dec4 #dej4jj #a4ae #c4ii #j4bf #bj #d #a #b1jjj #bgj #gj ,dec4 #eej4jj #a4dh #d4jj #j4be #ah #c #a #a1ajj #bgj #ej ,dec4 #fdh4bj #b4jd #c4fc #j4be #af #b #a #c1jjj 444 444 ,dec4 #gdh4bj #b4hj #d4jj #j4bf #ad #a #a #b1djj #aij #aj ,dec4 #hej4jj #c4dj #c4gb #j4bg #ab #a #a ,sunday4 ,dec4 #idi4aj #c4ic #d4jj #j4bg #aa #a #a #a1bjj #agj #g ,dec4 #ajdi4aj #d4ej #d4jj #j4bg #ab #a #a #hjj #ij #ee ,dec4 #aadh4bj #e4eb #d4jj #j4bg #bee #dd #a #f1ejj --- --- ,dec4 #ab ,%ut d[n #ab_/aa at #f ,p4 ,m4 turbidity too high to wa%4 ,dec4 #ae --- --- --- --- --- --- --- ,sunday4 ,dec4 #afej4jj #d4jb #c4ii #j4bh #ij #ce #b --- --- --- ,wa%$4 ,dec4 #agdj4jj #a4ij #c4ig #j4cj #gj #be #b #ba1jjjaj1jjja1bjj ,wa%$4 ,dec4 #ahdd4aj #a4jh #c4ig #j4ca #di #ae #b #f1ejj #d1bjj #hjj ,dec4 #aidh4bj #a4hh #c4ih #j4ca #ci #aj #a ,lo/4 ,lo/4,lo/4 ,dec4 #bjdf4dj #d4gg #c4ii #j4ca #db #ac #a ,dec4 #badf4dj #f4fh #c4ii #j4cb #bf #f #a ,wa%$4 ,dec4 #bbdi4aj #a4ad #c4ii #j4cb #bj #d #a ,sunday4 ,dec4 #bcdi4aj #b4ag #d4jj #j4ca #cd #g #a #a1djj #cjj #ajj ,dec4 #bddi4aj #c4gf #d4jj #j4ca #aie #ef #a #i1jjj #iej #gj ,dec4 #be,%ut d[n #ab_/bd at #i ,p4,m4 turbidity too high to wa%4 ,holiday ,dec4 #cjej4jj #b4fa #c4ig #j4cc #ef #ai #b --- --- --- ,dec4 #cadd4hj #e4eg #c4ih #j4cf #ci #ab #a --- --- --- ,wa%$4 ---------------------------------------- -------------------- #aijh4 ---------------------------------------- -------------------- ,jan4 #adf4dj #a4cj #c4ih #j4cf #ca #f #a ,holiday4 ,jan4 #bdh4bj #c4cf #d4jj #j4cf #ci #i #a --- --- --- ,jan4 #cdg4cj #d4ie #c4ii #j4ce #cf #i #a #c1ajj #dij #ij ,jan4 #dej4jj #e4bh #c4ii #j4ce #cb #g #a #b1djj #bdj #dc ,jan4 #edi4aj #f4bf #d4jj #j4ce #bf #e #a ,sunday4 ,wa%$4 ,jan4 #fdi4aj #j4ii #c4ih #j4ce #bj #d #a #fjj #bjj #cg ,jan4 #gej4jj #a4ae #d4jj #j4ce #bj #d #a #a1ajj #aej #dg ,jan4 #hej4jj #a4da #d4jj #j4ce #bb #d #a #a1ijj #afj #cj ,jan4 #idi4aj #a4ib #d4jj #j4ce #de #aa #a #ac1jjj #a1cjj #gj ,jan4 #ajdi4aj #b4ef #d4jj #j4cf #gj #be #a #aj1jjj #c1ejj #agj ,jan4 #aaej4jj #c4ag #c4ii #j4cg #ef #ah #a #af1jjj #d1jjj #bdj ,jan4 #abdi4aj #c4gc #d4jj #j4cg #dj #aj #a ,sunday4 ,jan4 #acej4jj #d4ad #d4jj #j4cg #aaj #de #b #h1ejj #a1bjj #hdj ,jan4 #addi4aj #d4fe #c4ii #j4ch #baj #ie #c #af1jjj #c1ijj #ejj ,jan4 #aedi4aj #e4bc #c4ii #j4da #cbe #aij #ab #bd1jjj #g1jjj #eej ,jan4 #afej4jj #e4ge #c4ii #j4dc #cfj #baj #cg #bh1jjj #h1ejja1bjj ,jan4 #agdi4aj #f4cd #d4jj #j4de #bdb #abb #bd #fe1jjjae1jjja1gjj ,jan4 #ah --- --- --- --- --- --- --- --- --- --- ,jan4 #aiej4jj #a4ag #d4jj #j4df #aag #dj #ab ,sunday4 ,jan4 #bjej4jj #a4ch #d4jj #j4df #gb #ca #f #a1fjj #a1hjj #cbj ,jan4 #baej4jj #a4fh #c4eg #j4cg #ee #bj #d #e1jjj #dej ,jan4 #bbdi4aj #b4jd #d4jj #j4dd #di #ag #c #c1fjj #fjj #ajj ,jan4 #bcej4jj #b4dg #c4bd #j4cc #dj #ab #c #a1hjj #bij #acj ,jan4 #bddi4aj #c4jc #c4jj #j4cd #dj #aa #b #b1cjj #bgj #fe ,jan4 #beej4jj #c4fa #c4jj #j4ce #ci #aj #b #a1ajj #ahj #fj ,jan4 #bfdi4aj #d4ah #b4ii #j4ce #cb #g #b ,sunday4 ,jan4 #bgej4jj #d4ha #c4jj #j4ce #cb #g #b #cjj #dj #bd ,jan4 #bhdh4bj #e4de #b4ii #j4ce #de #ab #b #a1bjj #ij #ca ,jan4 #bidi4aj #f4ja #b4ii #j4ce #fj #ba #b #a1jjj #bcj #ej ,jan4 #cjdi4aj #f4fb #b4ii #j4cf #eg #bb #b #a1djj #agj #dh ,wa%$4 ,jan4 #caej4jj #a4cj #b4ii #j4cf #db #ae #b #a1ajj #aij #bc ---------------------------------------- -------------------- ,feb4 #aej4jj #a4ea #b4ii #j4cg #ci #aa #b #gej #dj #ca ,feb4 #bej4jj #a4gh #c4jj #j4cg #bg #g #b ,sunday4 ,feb4 #cdi4aj #b4ac #c4jj #j4cg #bi #f #b #a1cjj #bjj #g ,feb4 #dej4jj #b4fi #c4jj #j4cg #be #e #a #fjj #afj #ah ,feb4 #edi4aj #c4ca #b4ii #j4cg #bd #e #a #gej #adj #da ,feb4 #fej4jj #c4hi #b4ii #j4cg #bj #d #a #b1jjj #ahj #bi ,feb4 #gdh4bj #d4ej #b4ii #j4cg #ag #c #a 444 #ch #ae ,feb4 #hdi4aj #e4aa #b4ii #j4cg #ae #c #a #ijj #ie #bd ,feb4 #idi4aj #e4fe #c4jj #j4ch #ad #c #a ,sunday4 ,feb4 #ajdi4aj #f4dc #b4ii #j4ch #aa #c #a #hej #he #ba ,feb4 #aaej4jj #f4ij #c4jj #j4ch #aj #c #a #a1jjj #gj #bj ,wa%$4 ,feb4 #abdi4aj #a4bi #b4ii #j4ch #h #b #a #gej #bj #af ,feb4 #acej4jj #a4ej #b4ii #j4ci #i #b #a #gjj #dj #aa ,feb4 #adej4jj #a4hj #b4ii #j4ci #i #b #a #a1bjj #ci #g ,feb4 #aedi4aj #b4ce #c4jj #j4ci #fa #ac #a #e1ejj #fjj #g ,feb4 #afdi4aj #c4bh #b4ii #j4ci #hj #cj #b ,sunday4 ,feb4 #agdh4bj #d4he #b4ii #j4ci #hj #bi #c #cc1jjj #c1hjj #acj ,feb4 #ahdg4cj #f4ci #b4ii #j4ci #acj #dd #c --- #b1fjj #afj ,feb4 #aide4ej #g4cb #b4ih #j4dj #cbj #adc #f #bh1jjj #f1jjj #ahj ,wa%$4 ,feb4 #bbej4jj #a4dj #c4jj #j4da #he #cj #e ,holiday4 ,feb4 #bcej4jj #a4gg #c4jj #j4da #fj #ba #d ,sunday4 ,feb4 #bddi4aj #b4be #b4ii #j4da #df #ad #c #c1fjj #b1hjj #ij ,feb4 #beej4jj #b4fa #c4jj #j4da #ca #g #b #b1cjj #adj #dg ,feb4 #bfej4jj #c4jf #c4jj #j4da #cj #f #b #c1hjj #adj #de ,feb4 #bgdh4bj #c4fe #b4ii #j4da #cj #e #a #a1cjj #ajj #bb ,feb4 #bhej4jj #d4bd #c4jj #j4da #cg #f #a #a1djj #ajj #dj ,feb4 #bidh4bj #e4bh #b4ii #j4da #abc #eb #b #ac1ejj #dbj #dj ,wa%$4 ---------------------------------------- -------------------- ,m>4 #add4fj #a4ef #b4ii #j4db #ig #ci #e ,sunday4 ,m>4 #bdh4bj #b4ij #b4ii #j4db #hb #cj #d #h1jjj #cbj #fj ,m>4 #cdf4dj #d4fi #b4ih #j4db #hg #cc #d #aa1jjj #gej #cj ,m>4 #ddg4cj #f4ac #b4ii #j4db #fg #bd #c #f1jjj #bij #cd ,m>4 #edh4bj #g4ca #b4ii #j4db #ei #ai #c #d1djj #bbj #da ,wa%$4 ,m>4 #fdi4aj #a4ec #b4ii #j4db #gb #bd #b #g1jjj #agj #da ,m>4 #gej4jj #a4ie #c4jj #j4dc #hb #cj #b #i1ejj #baj #cd ,m>4 #hdi4aj #b4fb #b4ii #j4dc #ib #cg #c ,sunday4 ,m>4 #iej4jj #c4ai #c4jj #j4dc #abe #ef #d #aa1jjj #gjj #fe ,m>4 #aj,prelim9>y filt] discont9u$ & ! ,pue* sy/em />t$4 ,table #ag--,record ( ,exp]im5tal ,filt]1 ,pue* sy/em4--7,cont9u$47 ,columns3 ,a - ,rates1 millions ( gallons p] acre daily4 ,b - ,rate1 millions ( gallons p] acre daily4 ,c - ,loss ( head4 ,d - ,appli$ wat]4 ,e - ,efflu5t1 prelim9>y filt]4 ,f - ,efflu5t1 f9al filt]4 ,g - ,appli$ wat]4 ,h - ,efflu5t1 prelim9>y filt]4 ,i - ,efflu5t1 f9al filt]4 ,pue* sy/em3 ,f9al ,turbidity4 ,bact]ia4 filt]4 ,date4 ---------------------------------------- -------------- ,a ,b ,c ,d ,e ,f ,g ,h ,i ---------------------------------------- ----------------- #aijh4 ---------------------------------------- ----------------- ,m>4 #aabfeagj #ij #ec #ahb4iij4ecaee #hj #g #f1ejj #h1ejj #dij ,m>4 #abbfeagj #ij #ec #ahb4iij4fjace #gj #g #e1ijj #f1jjj #cfj ,m>4 #acbfeagj #ij #ec #ahc4jjj4fjabb #eb #f #a1ijj #a1gjj #adj ,m>4 #adbfeagj #ij #ec #ahc4jjj4fa #ig #dj #e #a1hjj #a1fjj #acj ,m>4 #aebfeagj #ij #ec #ahb4iij4fd #gg #ca #d ,sunday4 ,m>4 #afbfeagj #ij #ec #ahc4jjj4fi #fe #bf #c #a1djj #a1bjj #ej ,m>4 #agbdaaee #hb #dh #afb4iij4ga #ei #ai #c #ijj #bjj #de ,m>4 #ahbebafb #hf #ej #agb4iij4ge #fg #bb #b #a1jjj #gjj #cc ,m>4 #aibdaaee #hb #dh #afb4iij4gh #fj #ba #b 444 #hjj #dd ,m>4 #bjbidahiajj #ei #bjb4iij4he #eg #ah #b #a1cjj #fej #cg ,m>4 #babgiagi #ie #ef #aib4iij4ib #fg #ba #b #hjj #fjj #cd ,m>4 #bbbfeagj #ij #ec #ahb4iij4ii #hj #bg #b ,sunday4 ,m>4 #bcbfeagj #ij #ec #ahb4iia4jf #ij #cb #b #d1fjj #a1cjj #cc ,m>4 #bdbfeagj #ij #ec #ahb4iia4ab #hb #cd #c #b1ejj #iej #ch ,m>4 #bebfeagj #ij #ec #ahb4iia4ah #fg #bg #c #a1fjj 444 #cj ,m>4 #bfbfeagj #ij #ec #ahb4iia4bb #fj #bj #c #eej #djj #bd ,m>4 #bgbfeagj #ij #ec #ahc4jja4bc #ei #ah #b #iej #cfj #bh ,m>4 #bhbfeagj #ij #ec #ahc4jja4be #ea #ad #b #fej #bcj #ah ,m>4 #bibfeagj #ij #ec #ahb4iia4bh #ca #f #b ,sunday4 ,m>4 #cjbfeagj #ij #ec #ahb4iia4cf #cj #e #a #ejj #afj #be ,m>4 #cabfeagj #ij #ec #ahb4iia4dc #ci #g #a #gej #adj #bf ---------------------------------------- ----------------- ,apr4 #abfeagj #ij #ec #ahc4jja4dh #dd #i #a #gej #fj #da ,apr4 #bbfeagj #ij #ec #ahb4iia4ef #db #i #a #a1ajj #adj #bf ,apr4 #ccahbjdajh #fd #bbb4iia4fc #da #h #a #a1ejj #dg #aa ,apr4 #dbidahiajj #ei #bjb4iia4gj #ed #ac #a #gjj #hj #ce ,apr4 #ebgiagi #ie #ef #aic4jja4gc #ej #ac #a ,sunday4 ,apr4 #fbgiagi #ie #ef #aib4iia4gf #da #i #a #ddj #fe #ag ,apr4 #gbfeagj #ij #ec #ahc4jja4gh #ce #f #a #fej #fe #cd ,apr4 #hbfeagj #ij #ec #ahc4jja4gi #ci #f #a #eej #dd #aj ,apr4 #ibfeagj #ij #ec #ahc4jja4gi #dj #f #a #cij #cj #be ,apr4 #ajbfeagj #ij #ec #ahc4jja4gg #dj #f #a #ejj #bg #af ,apr4 #aabfeagj #ij #ec #ahc4jja4gh #de #g #a #dcj #bh #bh ,apr4 #abbfeagj #ij #ec #ahb4iia4hj #eb #aa #a ,sunday4 ,apr4 #acbfeagj #ij #ec #ah 444#a4ha #ej #aj #a #dij #ag #bf ,apr4 #ad ,%ut d[n on acc\nt ( los+ wat] :5 aqu$uct 0 dra9$2 also clean$ co>se s& filt]4 ,/>t$ ,april #bb;d4 ,apr4 #bcbdaaee #hb #dh #af 444#a4hb #bi #d #a #adj #fjj #ch ,apr4 #bdbdaaee #hb #dh #afc4jja4hg #ba #c #a #bjj #a1jjj #ac ,apr4 #bebdaaee #hb #dh #afb4iia4ie #bj #c #a #he #ahj #be ,apr4 #bfbebafb #hf #ej #agc4jja4ie #bd #c #a ,sunday4 ,apr4 #bgbdaaee #hb #dh #afc4jja4ic #ah #b #a #ie #ce #bc ,apr4 #bhbdaaee #hb #dh #afc4jja4if #bj #b #a #gj #bd #ah ,apr4 #bibdaaee #hb #dh #afb4iia4ig #bd #c #a #aaj #ba #bd ,apr4 #cjbdaaee #hb #dh #afb4iib4jc #ba #b #a #gj #be #f ---------------------------------------- ----------------- ,may #abdaaee #hb #dh #afc4jjb4jg #cb #d #a #acj #bj #ah ,may #bbdaaee #hb #dh #afb4iib4ab #bf #c #a #adj #af #ab ,may #cbdaaee #hb #dh #afb4iib4ag #bb #c #a ,sunday4 ,may #dbdaaee #hb #dh #afc4jjb4ai #ai #b #a #he #cj #ag ,may #ebdaaee #hb #dh #afc4jjb4bj #ah #b #a #acj #cc #i ,may #fbdaaee #hb #dh #afb4iib4bc #ah #b #a #bcj #ee #f ,may #gbebafb #hf #ej #agc4jjb4bd #ai #b #a #afj #ge #aj ,may #hbdaaee #hb #dh #afc4jjb4be #ai #b #a #cge #ee #h ,may #icahbjdajh #fd #bbb4iib4bi #ah #b #a #a1bjj #ab #i ,may #ajcahbjdajh #fd #bbb4iib4cj #cj #c #a ,sunday4 ,may #aabfeagj #ij #ec #ahb4iib4cc #fj #aj #a #b1hjj #acj #aa ,may #abbebafb #hf #ej #agb4iib4ci #gj #ae #a #b1ijj #ace #i ,may #acbdaaee #hb #dh #afc4jjb4da #ff #ad #a #a1hjj #aaj #af ,may #adbfeagj #ij #ec #ahc4jjb4ch #de #g #a #b1gjj #fe #ah ,may #aebebafb #hf #ej #agc4jjb4da #ci #e #a #iej #de #ad ,may #afbdaaee #hb #dh #afc4jjb4da #di #g #a #hjj #cb #aj ,may #agbdaaee #hb #dh #afc4jab4cd #df #g #a ,sunday4 ,may #ahbdaaee #hb #dh #afc4jjb4ca #ca #d #a #gjj #bf #f ,may #aibebafb #hf #ej #agc4jjb4bf #cf #d #a #cge #bh #ag ,may #bjbebafb #hf #ej #agc4jjb4bj #da #e #a #dbe #ch #aa ,may #bacddbbaaag #fi #bcc4jjb4ah #cj #c #a #cjj #be #i ,may #bbbdaaee #hb #dh #afc4jab4ag #ec #g #a #iej #bbj #ah ,may #bcbfeagj #ij #ec #ahb4iib4beabg #ch #a #b1djj #fjj #ba ,may #bdccababaab #ff #bbc4jjb4aiaaj #ci #c ,sunday4 ,may #becahbjdajh #fd #bbc4jab4jb #ij #be #c #fjj #cjj #dj ,may #bfbgiagi #ie #ef #aic4jba4hgace #de #c #c1bjj #aaj #cd ,may #bgbfeagj #ij #ec #ahc4jaa4fcaaj #ci #c #ad1ejj #cbj #de ,may #bhbebafb #hf #ej #agc4jaa4da #ij #bg #c #a1jjj #ie #bh ,may #bibebafb #hf #ej #agc4jaa4bd #gj #ag #c #a1ajj #aej #bf ,may #cjbebafb #hf #ej #agc4jaa4jg #ej #i #b ,holiday4 ,may #cabdaaee #hb #dh #afc4jaa4jc #cd #d #b ,sunday4 ---------------------------------------- ----------------- ,june #abebafb #hf #ej #agc4jjj4hc #ce #d #a 444 444 444 ,june #bbdaaee #hb #dh #afc4jjj4gd #ci #e #a 444 444 444 ,june #cbebafb #hf #ej #agc4jjj4fh #ce #d #a 444 444 444 ,june #dbdaaee #hb #dh #afc4jjj4fc #cj #c #a 444 444 444 ,june #ebebafb #hf #ej #agb4iij4fj #cj #c #a 444 444 444 ,june #fbdaaee #hb #dh #afc4jjj4ef #bg #c #a 444 444 444 ,june #gbdaaee #hb #dh #afb4iij4ec #bb #b #a 444 444 444 ,june #hbdaaee #hb #dh #afc4jjj4di #bj #a #a 444 444 444 ,june #ibdaaee #hb #dh #afb4iij4df #bj #a #a 444 444 444 ,june #ajbdaaee #hb #dh #afc4jjj4dd #ag #a #a 444 444 444 ,june #aaccababaab #ff #bbb4ihj4db #ab #a #a 444 444 444 ,june #abcahbjdajh #fd #bbb4ihj4db #aa #a #a 444 444 444 ,june #acbfeagj #ij #ec #ahc4jjj4dj #cf #c #a 444 444 444 ,june #adbebafb #hf #ej #agb4iij4dj #ci #e #a 444 444 444 ,june #aebdaaee #hb #dh #afb4iij4ci #be #c #a 444 444 444 ,june #afbdaaee #hb #dh #afb4iij4dj #cd #c #a 444 444 444 ,june #agbebafb #hf #ej #agb4iij4da #fd #aa #a 444 444 444 ,june #ahbdaaee #hb #dh #afb4iij4db #eg #aa #a 444 444 444 ,june #aibdaaee #hb #dh #afb4iij4db #df #h #a 444 444 444 ,june #bjbdaaee #hb #dh #afb4iij4db #dj #e #a 444 444 444 ,june #babdaaee #hb #dh #afc4jjj4dc #bh #d #a 444 444 444 ,june #bbbdaaee #hb #dh #afb4iij4dc #be #c #a 444 444 444 ,june #bcbdaaee #hb #dh #afb4iij4dc #be #c #a 444 444 444 ,june #bdbdaaee #hb #dh #afb4iij4dc #bi #d #a 444 444 444 ,june #bebdaaee #hb #dh #afb4iij4dc #ah #b #a 444 444 444 ,june #bfbdaaee #hb #dh #afb4hjj4db #ae #a #a 444 444 444 ,june #bgbdaaee #hb #dh #afb4iij4dd #ab #a #a 444 444 444 ,june #bhbdaaee #hb #dh #afb4iij4dd #i #a #a 444 444 444 ,june #bibdaaee #hb #dh #afb4iij4dd #h #a #a 444 444 444 ,june #cjbdaaee #hb #dh #afb4iij4dd #aj #a #a 444 444 444 ---------------------------------------- ----------------- ,july #abdaaee #hb #dh #afc4jjj4de #h #a #a #hj #aj #d ,july #bbdaaee #hb #dh #afc4jjj4df #h #a #j #bij #bd #e ,july #cbdaaee #hb #dh #afc4jjj4dg #h #a #j #cej #de #f ,july #dbdaaee #hb #dh #afb4iij4di #i #a #j 444 444 444 ,july #ecjeaieajc #fa #bac4jjj4ea #aj #a #j 444 444 444 ,july #fbdaaee #hb #dh #afc4jjj4ea #i #a #j #cjj #cf #g ,july #gbdaaee #hb #dh #afb4iij4ec #h #a #j #aaj #aj #c ,july #hbebafb #hf #ej #agc4jjj4ec #i #a #j #he #bb #b ,july #ibdaaee #hb #dh #afc4jjj4ed #h #a #j #he #bf #b ,july #aj444444444444444 444 444 #bjj #c #e ,july #aacjeaieajc #fa #bac4jjj4ef #ab #a #j #ade #g #c ,july #abbdaaee #hb #dh #afb4iij4eh #aa #a #j 444 444 444 ,july #acbdaaee #hb #dh #afc4jjj4fj #aj #a #j #aae #cd #ee ,july #adbdaaee #hb #dh #afb4iij4fb #af #a #j #cjj #ee #cj ,july #aebdaaee #hb #dh #afb4iij4fd #ag #a #j #ahj #cb #bc ,july #afbdaaee #hb #dh #afc4jjj4fg #ac #a #j #ajj #aae #c ,july #agbdaaee #hb #dh #afb4iij4ga #aj #a #j #fe #bge #e ,july #ahbdaaee #hb #dh #afb4iij4gc #aa #a #j #ch #dbe #aj ,july #aibdaaee #hb #dh #afc4jjj4gf #ab #a #j 444 444 444 ,july #bjbdaaee #hb #dh #afb4iij4gi #aj #a #j #ie #ij #gj ,july #babebafb #hf #ej #agb4iij4hc #aj #a #a #gj #ag #d ,july #bbbdaaee #hb #dh #afb4iij4hg #ac #a #a #ddj #h #e ,july #bccjeaieajc #fa #bab4iij4ib #ed #d #a #fej #bf #e ,july #bdccababaaa #ff #bbb4ihj4iicje #fa #a #a1fej 444 444 ,july #bebfeagj #ij #ec #ahb4iha4jhccj #he #a #b1fjj #aae #ae ,july #bfbebafb #hf #ej #agb4iha4babij #gg #b 444 444 444 ,july #bgcjeaieajc #fa #bab4iha4djcce #hg #b #ce1jjj #bej 444 ,july #bhbebafb #hf #ej #agb4iha4fhagj #eb #b #a1bjj #a1cej #ae ,july #bibebafb #hf #ej #agb4igb4adahj #eb #b #b1jjj #fjj #ac ,july #cjbebafb #hf #ej #agb4igb4febcg #ef #b #hjj #a1cjj #ab ,july #cabdaaee #hb #dh #afb4iec4jabej #fj #b #a1jjj #caj #g ,table #ah--,record ( ,exp]im5tal ,filt] ,plant ,no4 #b4 ,prelim9>y ,filt]4 ,f9al ,filt]4 ---------------------------------------- ,date4 ,rate1 ,rate1 millions ( ,loss ( millions ( ,loss ( gallons p] head4 gallons p] head4 acre daily4 acre daily4 ---------------------------------------- -------- #aijg4 ---------------------------------------- -------- ,feb4 #h #ba4ej #j4jd #b4ha #j4ag ,feb4 #i #ba4fj #j4jd #a4ji #j4jf ,feb4 #aj #bj4ij #j4je #a4ei #j4jh ,feb4 #aa #ai4hj #j4je #c4ja #j4ae ,feb4 #ab #ai4gj #j4jf #c4ja #j4ad ,feb4 #ac #ai4fj #j4jf #c4ja #j4ab ,feb4 #ad #bd4gj #j4jg #b4fe #j4ac ,feb4 #ae #cg4bj 444 #c4dj #j4ab ,feb4 #af #cg4cj 444 #c4dj #j4aa ,feb4 #ag,%ut d[n = *anges 9 met]s & pip+4 ,feb4 #ah 444 444 444 444 ,feb4 #ba #dd4ej 444 #d4cf #j4ai ,feb4 #bb #dh4fj 444 #d4cg #j4af ,feb4 #bc #dh4dj 444 #d4bj #j4ae ,feb4 #bd #dh4cj 444 #d4jb #j4ac ,feb4 #be ,%ut d[n sev]al h\rs4 #j4ad ,feb4 #bf #dh4fj #j4jd #d4ab #j4ad ,feb4 #bg #ec4bj #j4jd #d4jh #j4ae ,feb4 #bh #eb4hj #j4jd #d4ji #j4ae ---------------------------------------- -------- ,m>4 #a #ec4jj #j4jd #d4aj #j4af ,m>4 #b #ec4cj #j4jd #d4aa #j4af ,m>4 #c #ej4fj #j4je #d4aa #j4af ,m>4 #d #db4dj #j4je #d4ab #j4ag ,m>4 #e #db4gj #j4je #d4aa #j4ag ,m>4 #f #dh4fj #j4jg #d4ac #j4ag ,m>4 #g #ej4ej #j4jh #d4ab #j4ah ,m>4 #h #ea4hj #j4ji #d4ab #j4ah ,m>4 #i #ec4jj #j4aj #d4ab #j4ah ,m>4 #aj #ed4dj #j4ab #d4aa #j4ai ,m>4 #aa #ea4jj #j4ab #d4ab #j4ai ,m>4 #ab #ea4bj #j4ab #d4jg #j4ai ,m>4 #ac #ej4ej #j4ab #d4jj #j4ai ,m>4 #ad #df4ej #j4ab 444 #j4bj ,m>4 #ae #de4hj #j4ab #c4ih #j4bj ,m>4 #af #db4ej #j4ab #c4ig #j4ai ,m>4 #ag #di4cj #j4ad #c4ih #j4ai ,m>4 #ah #eb4fj #j4af #c4ih #j4bj ,m>4 #ai #ec4ej #j4ag #d4ja #j4ai ,m>4 #bj #eb4ij #j4ag #c4ii #j4ah ,m>4 #ba #dh4bj #j4af #d4jj #j4ai ,m>4 #bb #ea4hj #j4ah #d4ja #j4bj ,m>4 #bc #ea4fj #j4ai #d4ja #j4bj ,m>4 #bd #dh4bj #j4ag #d4ja #j4bj ,m>4 #be #dh4ej #j4ah #d4ja #j4bj ,m>4 #bf #de4ij #j4ah #c4ih #j4bj ,m>4 #bg #ej4ej #j4bj #d4jd #j4bj ,m>4 #bh #di4fj #j4bj #c4ib #j4ai ,m>4 #bi #db4bj #j4ag #c4ih #j4ai ,m>4 #cj #dh4jj #j4bb #d4ja #j4ai ,m>4 #ca #di4aj #j4bb #c4ii #j4bj ---------------------------------------- -------- ,apr4 #a #di4aj #j4bd #d4jj #j4bj ,apr4 #b #di4gj #j4be #d4jj #j4bj ,apr4 #c #ea4dj #j4bg #d4jj #j4ba ,apr4 #d #dh4gj #j4bg #d4jj #j4bb ,apr4 #e #dh4aj #j4bg #d4jj #j4bb ,apr4 #f ,%ut d[n await+ ,mr4 ,maigu5 to apply bone-*>coal4 ,apr4 #g ,remov$ #a4jf 94 ( s&4 ,apr4 #h #eb4bj #j4cc #d4je #j4bg ,apr4 #i #df4ij #j4bi #d4jb #j4bi ,apr4 #aj #dg4fj #j4ca #d4jc #j4bh ,apr4 #aa #df4jj #j4cj #d4jd #j4bh ,apr4 #ab #de4dj #j4ca #d4jc #j4bi ,apr4 #ac #de4aj #j4cb #c4ii #j4cb ,apr4 #ad #di4jj #j4cd #d4jj #j4cb ,apr4 #ae #dg4hj #j4ce #c4ii #j4cc ,apr4 #af #dg4dj #j4cf #c4ii #j4cd ,apr4 #ag #de4fj #j4cf #d4jj #j4cd ,apr4 #ah #de4gj #j4cf #d4jj #j4cd ,apr4 #ai #de4fj #j4cg #d4jj #j4cd ,apr4 #bj #de4cj #j4dj #d4jj #j4cf ,apr4 #ba #dg4bj #j4dd #c4ii #j4ch ,apr4 #bb #de4bj #j4db #c4ii #j4ch ,apr4 #bc #dd4ij #j4dd #d4je #j4dj ,apr4 #bd #dj4ej #j4da #d4jb #j4dd ,apr4 #be #ci4fj #j4da #d4jc #j4de ,apr4 #bf #dj4gj #j4dd #d4je #j4de ,apr4 #bg #ci4cj #j4dd #d4jj #j4dd ,apr4 #bh #cd4gj #j4dc #d4je #j4dd ,apr4 #bi #cg4bj #j4de #d4jj #j4db ,apr4 #cj #dc4jj #j4di #d4jj #j4da ---------------------------------------- -------- ,may #a #da4cj #j4di #d4jj #j4da ,may #b #db4dj #j4di #d4jj #j4da ,may #c #dj4gj #j4dh #d4jj #j4dj ,may #d #cc4hj #j4dg #d4jj #j4ci ,may #e #bf4bj #j4dc #d4jj #j4ci ,may #f #bi4jj #j4ch #c4ii #j4cg ,may #g #bg4fj #j4cf 444 #j4cg ,may #h #bd4gj #j4ca #c4ii #j4cg ,wa%$4 ,may #i #bd4dj #j4jc #c4ih #j4ci ,may #aj #bd4hj #j4jd #d4jj #j4db ,may #aa #ej4jj #j4jf #d4jj #j4dd ,may #ab #ej4jj #j4jh #d4jj #j4dh ,may #ac #ej4jj #j4ji #d4jj #j4dg ,may #ad #ej4jj #j4aj #d4jj #j4df ,may #ae #dh4ej #j4ae #d4jj #j4de ,may #af #dg4jj #j4af #d4jj #j4df ,may #ag #dg4jj #j4af #c4ii #j4dg ,may #ah #dg4jj #j4ai #d4jj #j4dh ,may #ai #dg4jj #j4ba #c4ii #j4ea ,may #bj #df4fj #j4bd #d4jj #j4ec ,may #ba #df4dj #j4bd #d4jj #j4ee ,may #bb #df4dj #j4bg #d4jj #j4eh ,may #bc #df4dj #j4bi #d4jj #j4fa ,may #bd #df4dj #j4cj #d4jj #j4fc ,may #be #df4dj #j4cb #d4jj #j4ff ,may #bf #df4dj #j4cd #c4ii #j4gj ,may #bg #df4dj #j4hf #c4ii #j4gd ,may #bh #df4dj #j4ch #c4ae #j4gf ,may #bi #df4jj #j4dd #c4hh #j4gh ,may #cj #de4fj #j4df #c4ii #j4hf ,may #ca #de4fj #j4df #d4jj #j4ib ---------------------------------------- -------- ,june #a #de4fj #j4df #d4jj #j4ih ,june #b #de4fj #j4dh #d4jj #a4ji ,june #c #de4fj #j4ea #d4jj #a4bj ,june #d #de4fj #j4ed #d4jj #a4cb ,june #e #de4fj #j4ee #d4jj #a4dh ,june #f #de4fj #j4ef #d4ja #c4ff ,june #g #de4jj #j4eg #d4jj #a4hj ,june #h #de4jj #j4eg #d4jj #a4ij ,june #i #de4jj #j4ee #d4ja #b4jj ,june #aj #de4jj #j4ef #d4jj #b4ji ,june #aa #de4jj #j4eh #d4jj #b4ag ,june #ab #de4jj #j4fj #d4ja #b4bg ,june #ac #de4jj #j4fb #d4jj #b4cf ,june #ad #de4jj #j4fc #c4ii #b4di ,june #ae #de4jj #j4fd #c4ii #b4ef ,june #af #dd4gj #j4fe #d4jj #b4fc ,june #ag #dd4dj #j4fd #d4jj #b4fg ,june #ah #de4jj #j4fc #c4ih #b4fi ,june #ai #de4jj #j4fc #d4jj #b4gc ,june #bj #de4jj #j4fb #d4ja #b4gb ,june #ba #de4jj #j4fa #d4ja #b4fh ,june #bb ,%ut d[n to scrape & apply asbe/os & coke2 remov$ #j4gi 94 ( s&4 ,june #bc ,appli$ #h lb4 ( asbe/os & #aj lb4 ( bone-*>coal4 ,june #be #ej4jj #j4ed #d4jj #j4bg ,june #bf #ej4jj #j4eg #d4ja #j4df ,june #bg #ej4jj #j4fc #d4ja #j4ee ,june #bh #ej4jj #j4fe #c4ii #j4fc ,june #bi #ej4jj #j4gj #d4jj #j4gc ,june #cj #ej4jj #j4gg #c4ii #j4hb ---------------------------------------- -------- ,july #a #ej4jj #j4hg #d4jj #j4hj ,july #b #ej4jj #j4ie #d4ja #j4gc ,july #c #ej4jj #a4ja #d4jj #j4ff ,july #d #ej4jj #a4jc #d4jj #j4eh ,july #e #ej4jj #a4jg #c4ii #j4ed ,july #f #ej4jj #a4aj #d4jj #j4eb ,july #g #ej4jj #a4ad #d4jj #j4ej ,july #h #ej4jj #a4af #d4jj #j4dh ,july #i #ej4jj #a4ah #d4jj #j4df ,july #aj #ej4jj #a4bj #c4ii #j4de ,july #aa #ej4jj #a4bj #c4ii #j4de ,july #ab #ej4jj #a4bj #d4ja #j4dd ,july #ac #ej4jj #a4ae #d4jj #j4dg ,july #ad #ej4jj #a4ae #d4jj #j4dh ,july #ae #ej4jj #a4ad #c4ii #j4dh ,july #af #ej4jj #a4ai #d4jj #j4dh ,july #ag #ej4jj #a4ba #d4jj #j4dh ,july #ah #ej4jj #a4ai #c4ii #j4ej ,july #ai #ej4jj #a4af #c4ii #j4eb ,july #bj #ej4jj #a4af #c4ii #j4ef ,july #ba #ej4jj #a4ai #c4ii #j4fc ,july #bb #ej4jj #a4bj #c4ii #j4gg ,july #bc #ej4jj #a4ba #c4ii #j4ic ,july #bd #ej4jj #a4ch #c4ii #a4jg ,july #be #ej4jj #a4ag #c4ii #a4bb ,july #bf #ej4jj #a4jg #d4jj #a4cg ,july #bg #ej4jj #a4aa #d4jj ,july #bh #ej4jj #a4bb #c4ih #a4fe ,july #bi #ej4jj #a4ba #d4jj #a4hb ,july #cj #ej4jj #a4bj #c4ii #a4ih ,july #ca #ej4jj #a4bj #c4ii #b4aa ---------------------------------------- -------- ,aug4 #a #ea4jj #a4ba #c4ii #b4bg ,aug4 #b #ea4jj #a4ba #c4ii #b4dc ,aug4 #c #ea4jj #a4ba #d4jj #b4ff ,aug4 #d #ej4jj #a4ba #c4ii #b4ie ,aug4 #e #ej4jj #a4ba #c4ih #c4bb ,aug4 #f #ej4jj #a4bb #c4ih #c4ej ,aug4 #g #ej4jj #a4ba #c4ii #c4gd ,aug4 #h #dh4bj #a4bj 444 #d4ji ,aug4 #i #ej4jj #a4ah 444 #d4de ,aug4 #aj #dg4cj #a4af 444 #d4fg ,aug4 #aa ,%ut d[n to dra9 & scrape s& filt]2 ,o4#i 94 dep? ov] all4 ,aug4 #af,out ( s]vice all ! re/ ( mon? wa%+ sponge & asbe/os4 ---------------------------------------- -------- ,sept4 #c #ej4jj #j4jb #d4jj #j4af ,sept4 #d #ej4jj #j4jb #c4ii #j4ad ,sept4 #e #ej4jj #j4jb #d4ja #j4ac ,sept4 #f #df4dj #j4jb #d4jj #j4ab ,sept4 #g #ej4jj #j4jc #d4jj #j4aa ,sept4 #h #df4dj #j4jd #c4ii #j4aa ,sept4 #i #ej4jj #j4je #d4ij #j4aa ,sept4 #aj #ej4jj #j4je #d4jj #j4aa ,sept4 #aa #ej4jj #j4jf #d4jj #j4aa ,sept4 #ab #ej4jj #j4jg #d4jj #j4ab ,sept4 #ac #ej4jj #j4jh #d4jj #j4ab ,sept4 #ad #ej4jj #j4ji #d4ja #j4ab ,sept4 #ae #dh4bj #j4aa #d4jj #j4ab ,sept4 #af #ea4jj #j4ac #d4jj #j4ab ,sept4 #ag #ej4jj #j4ad #d4jj #j4ab ,sept4 #ah #di4aj #j4ad #d4jj #j4ac ,sept4 #ai #ej4jj #j4ae #d4jj #j4ac ,sept4 #bj #di4aj #j4ag #d4jj #j4ac ,sept4 #ba #di4aj #j4ah #d4jj #j4ac ,sept4 #bb #dh4bj #j4bj #d4jj #j4ac ,sept4 #bc #di4aj #j4ai #d4jj #j4ac ,sept4 #bd #df4dj #j4ai #c4ii #j4ad ,sept4 #be #df4dj #j4bj #d4jj #j4ad ,sept4 #bf #de4fj #j4bd #d4jj #j4ae ,sept4 #bg #dd4hj #j4bg #d4jj #j4af ,sept4 #bh #df4dj #j4cj #c4ii #j4af ,sept4 #bi #df4dj #j4ca #c4ii #j4af ,sept4 #cj #df4dj #j4ca #d4jj #j4ag ---------------------------------------- -------- ,oct4 #a #dh4bj #j4cc #d4jj #j4ah ,oct4 #b #ej4jj #j4cc #d4ja #j4ai ,oct4 #c #dh4bj #j4cc #d4jj #j4ai ,oct4 #d #dh4bj #j4cd #d4jj #j4ai ,oct4 #e #ej4jj #j4ch #d4jj #j4ai ,oct4 #f #dh4bj #j4da #d4jj #j4ai ,oct4 #g #dh4bj #j4db #d4jj #j4ai ,oct4 #h #ej4jj #j4db #d4jj #j4ai ,oct4 #i #dd4hj #j4dj #d4jj #j4ai ,oct4 #aj #dh4bj #j4db #d4jj #j4ai ,oct4 #aa #dh4bj #j4dc #d4jj #j4bj ,wa%$4 ,oct4 #ab #ej4jj #j4ad #d4jj #j4bj ,oct4 #ac #dg4cj #j4ae #d4jj #j4ba ,oct4 #ad #ej4jj #j4ah #d4jj #j4bb ,oct4 #ae #ec4jj #j4bj #d4jj #j4bc ,oct4 #af #ej4jj #j4bj #d4jj #j4bd ,oct4 #ag #ej4jj #j4ba #d4jj #j4be ,oct4 #ah #ej4jj #j4ba #d4jj #j4be ,oct4 #ai #ej4jj #j4ba #d4jj #j4be ,oct4 #bj #ej4jj #j4bb #d4jj #j4be ,oct4 #ba #ej4jj #j4bc #d4jj #j4be ,oct4 #bb #ej4jj #j4bd #d4jj #j4bf ,oct4 #bc #ej4jj #j4be #d4jj #j4bf ,oct4 #bd #ej4jj #j4bf #d4jj #j4bf ,oct4 #be #ej4jj #j4bg #d4jj #j4bg ,oct4 #bf #ej4jj #j4bh #d4jj #j4bg ,oct4 #bg #ej4jj #j4bi #d4jj #j4bg ,oct4 #bh #ej4jj #j4cj #d4jj #j4bg ,oct4 #bi #ej4jj #j4ca #d4jj #j4bg ,oct4 #cj #ej4jj #j4cb #d4jj #j4bg ,oct4 #ca,out ( commission4 #d-;9 supply pipe /opp$ up4 ---------------------------------------- -------- ,nov4 #d #ej4jj #j4af #d4jj #j4bh ,nov4 #e #ej4jj #j4ag #d4jj #j4bh ,nov4 #f #ej4jj #j4ah #d4jj #j4bi ,nov4 #g #ej4jj #j4bj #d4jj #j4cj ,nov4 #h #ej4jj #j4ba #d4jj #j4cb ,nov4 #i #ej4jj #j4bb #d4jj #j4cd ,nov4 #aj #ej4jj #j4bc #d4jj #j4cf ,nov4 #aa #ej4jj #j4bd #c4df #j4ch ,nov4 #ab #ej4jj #j4bf #c4ii #j4dj ,nov4 #ac #ej4jj #j4bg #d4jj #j4dd ,nov4 #ad #ej4jj #j4bh #d4jj #j4di ,nov4 #ae #ej4jj #j4bi #d4jj #j4ee ,nov4 #af #ej4jj #j4cj #d4jj #j4fe ,nov4 #ag #ej4jj #j4ca #c4ih #j4hj ,nov4 #ah #ej4jj #j4cb #c4ii #j4ih ,nov4 #ai #ej4jj #j4cd #c4ii #a4bf ,nov4 #bj #ej4jj #j4ce #c4ih #a4fd ,nov4 #ba #ej4jj #j4cf #c4ii #b4jc ,nov4 #bb #ej4jj #j4cg #c4ih #b4cc ,nov4 #bc #ej4jj #j4ch #c4ii #b4fj ,nov4 #bd #ej4jj #j4dj #c4ih #b4he ,nov4 #be #dh4bj #j4de #c4ih #c4aj ,nov4 #bf #ej4jj #j4di #c4ih #c4fb ,nov4 #bg #ej4jj #j4ea #c4ii #d4ae ,nov4 #bh #ej4jj #j4ed #c4hd #d4dd ,nov4 #bi #ej4jj #j4ee #c4fg #d4ee ,nov4 #cj #ej4jj #j4ef #c4dd #d4fe ---------------------------------------- -------- ,dec4 #b ,%ut d[n to scrape s& filt]4 ,dec4 #f #ej4jj #j4fd #d4jj #j4df ,dec4 #g #ej4jj #j4fd #d4jj #j4ci ,dec4 #h #ej4jj #j4fd #d4ja #j4ce ,dec4 #i #ej4jj #j4fe #d4ja #j4cc ,dec4 #aj #ej4jj #j4fe #d4jj #j4cc ,dec4 #aa #dg4cj #j4fd #d4jj #j4ce ,dec4 #ab #df4dj #j4gj #c4ih #j4ci ,dec4 #ac #ej4jj #j4gi #c4ih #j4di ,dec4 #ad #eb4jj #j4hd #c4ig #j4fe ,dec4 #ae #di4aj #j4hd #c4ih #j4gg ,dec4 #af #di4aj #j4hf #c4ig #j4hd ,dec4 #ag #di4aj #j4hh #c4ih #j4ia ,dec4 #ah #dh4bj #j4hi #c4ih #j4id ,dec4 #ai #ej4jj #j4ia #c4ih #j4ig ,dec4 #bj #di4aj #j4ib #c4ih #a4jc ,dec4 #ba #ej4jj #j4id #c4ih #a4jh ,dec4 #bb #ej4jj #j4ig #c4ih #a4ac ,dec4 #bc #ej4jj #j4ie #c4ih #a4ai ,dec4 #bd #dg4cj #j4ic #c4ih #a4bh ,dec4 #be #dd4aj #j4ia #c4ig #a4dg ,dec4 #bf #df4dj #a4ja #c4ig #a4fc ,dec4 #bg #ej4jj #a4aa #c4ih #a4ha ,dec4 #bh #dh4bj #a4ab #c4ii #a4hg ,dec4 #bi #ej4jj #a4ad #c4ii #a4he ,dec4 #cj #di4aj #a4ae #c4ih #a4hf ,dec4 #ca #ej4jj #a4ag #d4jj #a4hg ---------------------------------------- -------- #aijh4 ---------------------------------------- -------- ,jan4 #a #ej4jj #a4ah #c4ih #a4ij ,jan4 #b #ej4jj #a4ah #c4ii #a4id ,jan4 #c #ej4jj #a4ai #c4ih #a4ih ,wa%$4 ,jan4 #d #ej4jj #j4ag #c4ig #b4ji ,jan4 #e #ej4jj #j4ah #c4ih #b4bb ,jan4 #f #ej4jj #j4ai #c4ih #b4bh ,jan4 #g #ej4jj #j4bj #c4ih #b4cg ,jan4 #h #ej4jj #j4ba #c4ii #b4dc ,jan4 #i #ej4jj #j4bc #c4ih #b4eb ,jan4 #aj #ej4jj #j4bd #c4ii #b4ff ,jan4 #aa #ej4jj #j4bg #c4ih #b4gd ,jan4 #ab #ej4jj #j4bh #c4ih #b4hc ,jan4 #ac #di4aj #j4cj #c4ih #b4ic ,jan4 #ad #dh4bj #j4cc #c4ii #c4jd ,jan4 #ae #df4dj #j4ce #c4ih #c4ba ,jan4 #af #ej4jj #j4dj #c4ih #c4di ,jan4 #ag #ej4jj #j4dc #c4ih #c4hf ,jan4 #ah #ej4jj #j4df #c4ia #c4ii ,jan4 #ai 444 444 444 444 ,jan4 #bj ,scrap$4 ,jan4 #ba #ej4jj #j4dh #c4jj #j4gf ,jan4 #bb #ej4jj #j4dh #c4ja #j4fj ,jan4 #bc #ej4jj #j4di #c4jj #j4eg ,jan4 #bd #ej4jj #j4di #b4ii #j4fj ,jan4 #be #ej4jj #j4ej #b4ii #j4fe ,jan4 #bf #ej4jj #j4ej #b4ih #j4fi ,jan4 #bg #ej4jj #j4ea #b4ii #j4gf ,jan4 #bh #ej4jj #j4eb #b4ii #j4hb ,jan4 #bi #ej4jj #j4ee #b4ii #j4ij ,jan4 #cj #ej4jj #j4eg #b4ih #j4ih ,jan4 #ca #ej4jj #j4eh #b4ih #a4jh ---------------------------------------- -------- ,feb4 #a #ej4jj #j4ei #b4ii #a4af ,feb4 #b #di4aj #j4fj #b4ii #a4bb ,feb4 #c #di4aj #j4fa #b4ih #a4cj ,feb4 #d #ej4jj #j4fd #b4ii #a4dj ,feb4 #e #ej4jj #j4ff #b4ii #a4ej ,feb4 #f #ej4jj #j4fg #b4ii #a4ee ,feb4 #g #ej4jj #j4fh #c4jj #a4ef ,feb4 #h #ej4jj #j4fi #c4jj #a4ec ,feb4 #i #ej4jj #j4ga #c4jj #a4ed ,feb4 #aj #ej4jj #j4gb #b4ii #a4fj ,feb4 #aa #ej4jj #j4gd #b4ii #a4fb ,feb4 #ab #ej4jj #j4ge #b4ih #a4fh ,feb4 #ac #ej4jj #j4gf #b4ii #a4gd ,feb4 #ad #dh4bj #j4gf #b4ii #a4gg ,feb4 #ae #ea4hj #j4gi #b4ii #a4hi ,feb4 #af #dh4bj #j4gi #b4ii #b4jh ,feb4 #ag #dh4bj #j4ha #b4ii #b4bd ,feb4 #ah #dg4cj #j4hb #b4ii #b4ca ,feb4 #ai #ea4hj #j4ib #b4ii #b4de ,feb4 #bj #eb4gj #j4ii #b4ii #b4fa ,feb4 #ba #ea4hj #a4jc #b4ii #b4fh ,feb4 #bb #ej4ij #a4jg #b4ii #b4gb ,feb4 #bc #ej4jj #a4ji #b4ii #b4gf ,feb4 #bd #ea4hj #a4ab #b4ii #b4hj ,feb4 #be #ej4jj #a4ad #b4ii #b4hd ,feb4 #bf #ej4jj #a4ag #c4jj #b4hg ,feb4 #bg #dh4bj #a4ah #b4ii #b4ij ,feb4 #bh #dg4cj #a4ai #b4ii #b4id ,feb4 #bi #ea4hj #a4bc #b4ii #c4ja ---------------------------------------- -------- ,m>4 #a #dh4bj #a4bj #b4ih #b4ii ,m>4 #b #ej4jj #a4bh #b4ii #c4ab ,m>4 #c #ej4ij #a4cb #b4ih #c4bb ,m>4 #d #ej4jj #a4cc #b4ii #c4bh ,m>4 #e #ej4jj #a4ce #b4ii #c4cb ,m>4 #f ,discont9u$2 s& filt] be+ us$ = s$im5tation exp]im5ts4 ,table #ah--7;,cont9u$47 ,turbidity4 ,bact]ia4 ---------------------------------------- ---------- ,date4 ,appli$,efflu5t1,efflu5t1,appli$,efflu5t 1,efflu5t1 wat]4 pre- f9al wat]4 pre- f9al lim9>y filt]4 lim9>y filt]4 filt] filt]4 ---------------------------------------- ------------------ #aijg4 ---------------------------------------- ------------------ ,feb4 #h 444 444 444 #a1ajj #b1ajj 444 ,feb4 #i 444 444 444 #bjj #eej #b1ajj ,feb4 #aj 444 444 444 444 444 444 ,feb4 #aa #ab #f #b #fjj #a1afj #a1ajj ,feb4 #ab #ab #e #b #fej #djj #gjj ,feb4 #ac #ae #e #b #ffj #ijj #gjj ,feb4 #ad #ae #f #b #fej #a1ajj #ijj ,feb4 #ae #ab #e #b #fjj #hjj #hej ,feb4 #af #ad #d #b #hej #iej #fjj ,feb4 #ag ,%ut d[n = *anges 9 met]s & pip+4 ,feb4 #ah 444 444 444 #a1bjj 444 #fjj ,feb4 #ba #bj #f #b #a1hjj #a1djj #hjj ,feb4 #bb #ae #d #b ,holiday4 ,feb4 #bc #bj #g #b #a1fjj #gej #chj ,feb4 #bd #bj #aj #c ,sunday4 ,feb4 #be #bj #aj #c #a1djj #a1jjj #dej ,feb4 #bf #bj #aj #c #gjj #hjj #bfj ,feb4 #bg #ag #h #c #gjj #gjj #bij ,feb4 #bh #ae #h #c #hjj #fej #ejj ---------------------------------------- ------------------ ,m>4 #a #ae #h #c #fej #eej #bjj ,m>4 #b #ae #g #c #a1jjj #hjj #cjj ,m>4 #c #ca #aa #c ,sunday4 ,m>4 #d #ce #ae #f #a1bjj #a1ejj #cfj ,m>4 #e #ace #eb #aj #ac1jjj #hej 444 ,m>4 #f #ace #ed #ab #ah1jjj #h1jjj 444 ,m>4 #g #ajb #df #h #bd1jjj #f1ejj #a1hjj ,m>4 #h #ajj #dj #f #bb1jjj #f1jjj #a1fjj ,m>4 #i #ij #dj #e #bd1jjj #f1jjj #hjj ,m>4 #aj #hb #ci #f ,sunday4 ,m>4 #aa #fh #cb #g #ah1jjj #d1cjj #bdj ,m>4 #ab #df #be #e #aa1jjj #d1fjj #baj ,m>4 #ac #dj #bj #e #i1jjj #a1ejj #bjj ,m>4 #ad #ci #bj #d #e1ejj #a1bjj #ij ,m>4 #ae #ce #ah #d #f1ejj #a1ajj #aej ,m>4 #af #fj #bd #d #e1jjj #hjj #afj ,m>4 #ag #ace #de #e ,sunday4 ,m>4 #ah #agj #ei #i #i1jjj #a1gjj #ajj ,m>4 #ai #abe #ea #h #g1jjj #a1jjj #abj ,m>4 #bj #ajb #dj #f #d1hjj #gjj #ge ,m>4 #ba #abe #db #e #h1ejj #a1ajj #ij ,m>4 #bb #aij #hb #e #g1ejj #a1ajj #ee ,m>4 #bc #ahj #ge #f #g1ejj #a1cjj #ij ,m>4 #bd #adj #fh #g ,sunday4 ,m>4 #be #hh #dj #e #d1djj #ijj #ge ,m>4 #bf #fb #cb #d #c1fjj #gej #ij ,m>4 #bg #dg #be #d #b1bjj #djj #fj ,m>4 #bh #ce #af #c #a1cjj #cej #ee ,m>4 #bi #bf #ab #c #gjj #ahj #bj ,m>4 #cj #be #g #c #caj #bbj #ci ,m>4 #ca #ba #f #b ,sunday4 ---------------------------------------- ------------------ ,apr4 #a #bj #f #b #fjj #aaj #ch ,apr4 #b #bd #f #b #bgj #aaj #bi ,apr4 #c #bd #f #b #dfj #he #ca ,apr4 #d #bj #f #b #bhj #fj #bb ,apr4 #e #bj #e #b #dej #gj #dj ,apr4 #f,%ut d[n await+ ,mr4 ,maigu5 to apply bone-*>coal4 ,apr4 #g,remov$ #a4jf 94 ( s&4 ,sunday4 ,apr4 #h #ah #d #c #ccj 444 444 ,apr4 #i #ah #d #b #adj #fj #cb ,apr4 #aj #cj #d #a #gej #abj #bh ,apr4 #aa #ff #g #b #d1jjj 444 #cb ,apr4 #ab #gb #bj #c #ad1jjj #b1ijj #he ,apr4 #ac #hj #cj #c #ac1jjj #b1ejj #ie ,apr4 #ad #gg #ce #d ,sunday4 ,apr4 #ae #fb #ca #d #g1jjj #a1ajj #fj ,apr4 #af #dg #bg #d #c1fjj #fej #ca ,apr4 #ag #ci #ba #c #a1fjj #afj #ch ,apr4 #ah #cj #ac #b #a1haj #baj #db ,apr4 #ai #be #i #b #gij #aij #cd ,apr4 #bj #bj #f #b #edj #hg #bc ,apr4 #ba #bj #d #b ,sunday4 ,apr4 #bb #ah #c #a #bce #ee #bb ,apr4 #bc #ae #c #a #agj #de #af ,apr4 #bd #ai #b #a #aej #ad #ad ,apr4 #be #cd #c #a #gjj #ab #bc ,apr4 #bf #df #d #a #a1bjj #hj #af ,apr4 #bg #eb #d #a #a1gjj #afj #bc ,apr4 #bh #de #e #a ,sunday4 ,apr4 #bi #dd #f #a #fjj #fj #aj ,apr4 #cj #ci #g #a #eej #ee #ae ---------------------------------------- ------------------ ,may #a #ca #f #a #ejj #hj #ag ,may #b #bd #e #a #ejj #hj #ai ,may #c #ai #d #a #bhj #ge #dh ,may #d #af #c #a #djj #hj #i ,may #e #ae #a #a ,sunday4 ,may #f #ac #b #a #cij #ajj #fe ,may #g #ab #b #a #aij #fj #ai ,may #h #aj #b #a 444 444 444 ,wa%$4 ,may #i #aj #b #a #cij #fe #aj ,may #aj #aj #b #a #cjj #hj #ah ,may #aa #ab #b #a #cij #aaj #ab ,may #ab #ag #b #a ,sunday4 ,may #ac #ce #c #a #fjj #ajj #ah ,may #ad #ci #d #a #ejj #fe #ae ,may #ae #ag #c #a #ejj #gj #af ,may #af #bd #c #a #bij #gj #af ,may #ag #ah #c #a #bfj #dj #i ,may #ah #ae #b #a #aij 444 #ag ,may #ai #ab #b #a ,sunday4 ,may #bj #ab #b #a #bfj #dj #ac ,may #ba #af #b #a #bfj #fe #i ,may #bb #bj #b #a #bhj #ce #ab ,may #bc #ae #b #a #acj #ce #aj ,may #bd #ae #b #a #agj #bf #f ,may #be #ae #b #a #cdj #hj #ac ,may #bf #ah #b #a ,sunday4 ,may #bg #ac #b #a #baj #hj #g ,may #bh #af #b #a #bfj #gj #aj ,may #bi #af #b #a #ejj #ee #ab ,may #cj #ad #b #a ,holiday4 ,may #ca #ag #b #a #chj #fe #aa ---------------------------------------- ------------------ ,june #a #ae #b #a #ijj #dh #aj ,june #b #ag #b #a ,sunday4 ,june #c #bd #b #a #eej #ge #af ,june #d #cg #c #a #f1ejj 444 #bb ,june #e #fe #e #a #c1bjj #adj #ai ,june #f #gg #af #a #a1ejj #baj #ad ,june #g #fd #bg #a #b1ajj #bcj #bj ,june #h #df #bb #a #fjj #bdj #cc ,june #i #dd #ah #a ,sunday4 ,june #aj #cf #ab #a #bdj #aaj #dc ,june #aa #cj #h #a #bhj #acj #fj ,june #ab #cd #h #a #ccj #aej #fj ,june #ac #ce #aj #a #dhj 444 #abj ,june #ad #ca #i #a #ddj 444 #fe ,june #ae #cb #h #a #dbj 444 #di ,june #af #bf #g #a ,sunday4 ,june #ag #bf #f #a #cdj #bgj #ee ,june #ah #ca #g #a #ddj #adj #fe ,june #ai #cg #aj #a #ejj #aaj #bd ,june #bj #cj #i #a #ccj #gj #cd ,june #ba #be #g #a #agj #acj #fj ,june #bb ,%ut d[n to scrape & apply asbe/os & coke2 remov$ #j4gi 94 ( s&4 ,june #bc;,appli$ #h lb4 ( asbe/os & #aj lb4 ( bone-*>coal4 ,june #be #acj #de #a #djj 444 444 ,june #bf #hb #cg #a #gej #eej #ce ,june #bg #fe #bf #a 444 #a1bjj #adj ,june #bh #dg #ba #a 444 #a1bjj #bf ,june #bi #cg #i #a #bbj #hjj #bb ,june #cj #cj #h #a ,sunday4 ---------------------------------------- ------------------ ,july #a #cj #h #a #djj #ij #cg ,july #b #cb #i #a #ahj #bcj #be ,july #c #cf #aj #a #cej #hj #eh ,july #d #dd #ab #a ,holiday4 ,july #e #bd #ad #a #eej #acj #dg ,july #f #ci #ab #a #bej #aaj #cc ,july #g #cd #aj #a ,sunday4 ,july #h #be #g #a #bbj #aij #ad ,july #i #bb #e #a #ej #cj #c ,july #aj #dg #aa #a ,lo/4 ,lo/4 ,lo/4 ,july #aa #ij #cj #a #aej #adj #ab ,july #ab #ig #ce #a #cjj #aaj #bj ,july #ac #ij #ci #a #bbj #abj #ad ,july #ad #ij #dj #a ,sunday4 ,july #ae #ie #dj #a #cge #cbj #ai ,july #af #abj #de #a ,lo/4 #aej #ab ,july #ag #he #db #a #bgj #fj #e ,july #ah #ef #cb #a #a1fge #bc #ci ,july #ai #da #bj #a #dej #bjj #ac ,july #bj #fb #bi #a #cjj #bbj #h ,july #ba #fb #ca #a ,sunday4 ,july #bb #hj #cf #a #a1djj #gjj #i ,july #bc #aje #dj #a #c1gjj #cgj #be ,july #bd #ie #dj #a #ggj #bfj #ca ,july #be #gg #cb #a #bej #bcj #c ,july #bf #fg #bi #a #adj #ij #ab ,july #bg #ed #be #a #cjj #ahj #f ,july #bh #df #ai #a ,sunday4 ,july #bi #cf #af #a #dgj #bcj #ah ,july #cj #bi #aa #a ,plates lo/4 ,july #ca #ba #i #a ,july ---------------------------------------- ------------------ ,aug4 #a #af #f #a ,plates lo/4 ,aug4 #b #ae #d #a #acj #acj #d ,aug4 #c #af #c #a #abj #hj #d ,aug4 #d #ba #c #a ,sunday4 ,aug4 #e #bi #c #a #bcj #baj #d ,aug4 #f #cd #d #a #he #cbj #ai ,aug4 #g #ba #d #a #bjj ,lo/4 #ai ,aug4 #h #ai #d #a #ajj #aej #ag ,aug4 #i #af #c #a #ge #bbj #i ,aug4 #aj #bd #c #a #fj #bej #aj ,aug4 #aa ,%ut d[n to dra9 & scrape s& filt]2 ,o4#i 94 dep? ov] all4 ,aug4 #af ,out ( s]vice all ! re/ ( mon? wa%+ sponge & asbe/os4 ---------------------------------------- ------------------ ,sept4 #c #ab #e #a #cjj 444 444 ,sept4 #d #af #f #a #fjj #bfj #cgj ,sept4 #e #cd #f #a #cfj #ga #afe ,sept4 #f #afj #eb #a #ae1jjj #a1ijj #abj ,sept4 #g #fd #bf #a #b1jjj #agj #fb ,sept4 #h #ef #be #a ,sunday4 ,sept4 #i #ei #be #a #bbj #ac #ai ,sept4 #aj #eg #ba #a #ah1jjj #ajj #bd ,sept4 #aa #fe #be #a #b1gjj #aej #be ,sept4 #ab #gb #bf #a #a1jjj #aij #cf ,sept4 #ac #hg #cj #a #b1cjj 444 #ce ,sept4 #ad #gb #bg #a #b1djj #acj #bcj ,sept4 #ae #fe #be #a ,sunday4 ,sept4 #af #fe #be #a ,lo/4 ,lo/4 #bg ,sept4 #ag #eb #ba #a #dbj #fj #bi ,sept4 #ah #fj #ah #a #ijj #hj #da ,sept4 #ai #he #bb #a #b1jjj 444 #ai ,sept4 #bj #ajj #bi #a #d1bjj #cjj #bh ,sept4 #ba #abj #cd #a #a1ajj #afj #cj ,sept4 #bb #acg #da #a ,sunday4 ,sept4 #bc #aab #cg #a #b1djj #ij #cd ,sept4 #bd #ajj #ce #a #d1jjj #baj #ab ,sept4 #be #dcb #hj #a #ef1jjj #eaj #bg ,sept4 #bf #che #hj #d #a1cjj #dej #ee ,sept4 #bg #bde #gj #c #d1jjj #bdj #da ,sept4 #bh #abg #df #b #ae1jjj #dcj #cg ,sept4 #bi #aje #da #b ,sunday4 ,sept4 #cj #aae #db #a ,lo/4 #a1fjj #aaj ---------------------------------------- ------------------ ,oct4 #a #hb #cf #a #fjj #fjj #abj ,oct4 #b #fe #bg #a #d1djj #agj #dg ,oct4 #c #ei #cd #a #ijj #baj #dd ,oct4 #d #ee #bj #a #hej #bjj #cg ,oct4 #e #i #ba #a #b1jjj #aej #cd ,oct4 #f #ei #bd #a ,sunday4 ,oct4 #g #eeb #ag #a #a1bej #bjj #bh ,oct4 #h #ed #af #a #aa1jjj #baj #bh ,oct4 #i #ea #af #a #b1jjj #caj #bi ,oct4 #aj #ej #ae #a #hjj #bbj #af ,oct4 #aa #dg #ac #a #b1jjj #caj #df ,wa%$4 ,oct4 #ab #cf #aa #a #a1bjj #cgj #be ,oct4 #ac #dj #ae #a ,sunday4 ,oct4 #ad #dg #ai #a #a1bjj #cij #bb ,oct4 #ae #da #af #a #ijj #adj #af ,oct4 #af #ce #ab #a ,lo/4 #caj #ah ,oct4 #ag #cj #h #a #eej #ahj #g ,oct4 #ah #be #f #a #bfj #ajj #cc ,oct4 #ai #be #f #a #gej #bbj #ae ,oct4 #bj #bj #e #a ,sunday4 ,oct4 #ba #ai #e #a #dhj #abj #aa ,oct4 #bb #ah #d #a #bcj #gj #g ,oct4 #bc #ae #c #a #bej #abj #ab ,oct4 #bd #ae #c #a #cjj #hj #ab ,oct4 #be #ae #b #a #dej #fj #ae ,oct4 #bf #ae #b #a #dej ,lo/4 #ad ,oct4 #bg #ac #b #j ,sunday4 ,oct4 #bh #ac #b #j #aij #aaj #i ,oct4 #bi #be #b #j #chj 444 444 ,oct4 #cj #ba #c #j 444 444 444 ,oct4 #ca ,out ( commission4 #d-;94 supply pipe /opp$ up4 ---------------------------------------- ------------------ ,nov4 #d #abe #aa #a 444 444 444 ,nov4 #e #ahe #fa #a #f1jjj #c1jjj #bbj ,nov4 #f #agj #ff #a #e1jjj #a1ajj #aej ,nov4 #g #ajj #de #a #ad1jjj #a1fjj #abj ,nov4 #h #ie #db #a #a1ijj #b1jjj #bi ,nov4 #i #hj #cf #a #d1jjj #b1jjj #aaj ,nov4 #aj #fg #bi #a ,sunday4 ,nov4 #aa #eb #bj #a #a1ijj #dfj #afj ,nov4 #ab #dj #ac #a #g1ejj #a1ajj #aaj ,nov4 #ac #cf #aj #a #a1fjj #eej #ej ,nov4 #ad #db #ac #a #b1gjj #iej #dh ,nov4 #ae #ce #aa #a #a1hjj #ijj #di ,nov4 #af #bf #g #a #a1ajj #cfj #ce ,nov4 #ag #bj #e #a ,sunday4 ,nov4 #ah #ag #d #a #a1fjj #bjj #ce ,nov4 #ai #af #c #a #a1cjj #djj #ee ,nov4 #bj #de #d #a #f1ejj #c1ejj #bjj ,nov4 #ba #eb #ab #a #i1ijj #d1ejj #acj ,nov4 #bb #fe #bd #a #aj1jjj #e1ejj #bbj ,nov4 #bc #di #ai #a #ah1jjj #c1ejj #ajj ,nov4 #bd #acd #cb #a ,sunday4 ,nov4 #be #bbe #hg #b #ej1jjj #ai1jjj #cdj ,nov4 #bf #bcg #ij #b #dj1jjj #aa1jjj #bbj ,nov4 #bg #ahe #gg #b #af1jjj #g1ejj #caj ,nov4 #bh #acj #eg #b ,holiday4 ,nov4 #bi #hj #cf #a #aj1jjj #b1bjj #hj ,nov4 #cj #ed #be #a #c1hjj #b1bjj #ee ---------------------------------------- ------------------ ,dec4 #b,%ut d[n to scrape s& filt]4 ,dec4 #f #af #c #a ,dec4 #g #ad #c #a #b1djj #a1bjj #dij ,dec4 #h #ab #b #a ,sunday4 ,dec4 #i #aa #b #a #a1bjj #dbj #fj ,dec4 #aj #ab #b #a #hjj #iej #ff ,dec4 #aa #bee #hd #c #f1ejj #a1fjj #adj ,dec4 #ab #bab #ajj #f #dh1jjj #ae1jjj #a1hjj ,dec4 #ac #die #bag #i #db1jjj #bj1jjj #a1fjj ,dec4 #ad #ceg #afg #i #di1jjj #i1ejj #a1bjj ,dec4 #ae #aeg #gf #f ,sunday4 ,dec4 #af #ij #db #d #ai1jjj #hjj #gjj ,dec4 #ag #gj #ca #b #ba1jjj #ah1jjj #a1fjj ,dec4 #ah #di #ba #b #f1ejj #g1jjj #fjj ,dec4 #ai #ci #ac #a ,lo/4 ,lo/4 ,lo/4 ,dec4 #bj #db #af #a ,dec4 ,dec4 ,dec4 #ba #bf #g #a ,dec4 ,dec4 ,dec4 #bb #bj #e #a ,sunday4 ,dec4 #bc #cd #i #a #a1djj #ejj #afj ,dec4 #bd #aie #ge #b #i1jjj #a1gjj #acj ,dec4 #be #dde #baj #i ,holiday4 ,dec4 #bf #cgj #agb #g #ea1jjj #h1jjj #bej ,dec4 #bg #bde #aaj #e #ee1jjj #e1fjj #baj ,dec4 #bh #ajb #df #c #aj1jjj #d1ejj #adj ,dec4 #bi #ge #cb #b ,sunday4 ,dec4 #cj #ef #bd #b #d1djj #a1ijj #aij ,dec4 #ca #ci #ae #a #ad1jjj #a1cjj #fj ---------------------------------------- ------------------ #aijh4 ---------------------------------------- ------------------ ,jan4 #a #ca #h #a 444 444 444 ,jan4 #b #ci #aa #a #d1djj #gej #de ,jan4 #c #cf #aa #a #c1ajj #a1fjj #gj ,wa%$4 ,jan4 #d #cb #i #a #b1djj #a1bjj #dc ,jan4 #e #bf #f #a ,sunday4 ,jan4 #f #bj #e #a #fjj #fjj #di ,jan4 #g #bj #e #a #a1ajj #ccj #di ,jan4 #h #bb #e #a #a1ijj #ijj #dc ,jan4 #i #de #ac #a #ac1jjj #c1djj #ej ,jan4 #aj #gj #cj #a #aj1jjj #h1jjj #ej ,jan4 #aa #ef #bb #a #af1jjj #bbj #bjj ,jan4 #ab #dj #ab #a ,sunday4 ,jan4 #ac #aaj #ea #b #h1ejj #a1bjj #dc ,jan4 #ad #baj #aac #d #af1jjj #f1jjj #bhj ,jan4 #ae #cbe #bbb #ae #bd1jjj #i1ejj #gjj ,jan4 #af #cfj #bdg #db #bh1jjj #ad1jjj #ijj ,jan4 #ag #bdb #adg #bf #fe1jjj #bj1jjj #a1bjj ,jan4 #ah #acg #gc #g #g1jjj #f1ejj #djj ,jan4 #ai 444 444 444 ,sunday4 ,jan4 #bj,scrap$4 ,jan4 #ba #ee #be #d 444 444 444 ,jan4 #bb #di #ba #d #c1fjj #a1ijj #aej ,jan4 #bc #dj #ae #c #a1hjj #gjj #agj ,jan4 #bd #dj #ac #c #b1cjj #iej #ij ,jan4 #be #ci #ab #c #a1ajj #hjj #ie ,jan4 #bf #cb #i #b ,sunday4 ,jan4 #bg #cb #i #b #cjj #gjj #gj ,jan4 #bh #de #ae #b #a1bjj #ijj #gj ,jan4 #bi #fj #bf #b #a1jjj #a1djj #ie ,jan4 #cj #eg #bg #b #a1djj #baj #cc ,jan4 #ca #db #ah #b #a1ajj #gej #de ---------------------------------------- ------------------ ,feb4 #a #ci #ad #b #gej #a1jjj #gj ,feb4 #b #bg #i #b ,sunday4 ,feb4 #c #bi #h #b #a1cjj #gej #bj ,feb4 #d #be #f #b #fjj #ijj #fj ,feb4 #e #bd #f #b #gej #bjj #ge ,feb4 #f #bj #e #b #b1jjj #hjj #fj ,feb4 #g #ag #d #a 444 #fjj #cd ,feb4 #h #ae #d #a #ijj #bbj #ce ,feb4 #i #ad #d #a ,sunday4 ,feb4 #aj #aa #d #a #hej #ejj #bh ,feb4 #aa #aj #d #a #a1jjj #ejj #bc ,feb4 #ab #h #d #a #gej #bij #ah ,feb4 #ac #i #d #a #gjj #bfj #aj ,feb4 #ad #i #d #a #a1bjj #bej #bg ,feb4 #ae #fa #ah #a #e1ejj #d1hjj #ac ,feb4 #af #hj #dj #b ,sunday4 ,feb4 #ag #hj #dj #c #cc1jjj #a1cjj #fj ,feb4 #ah #acj #fe #c 444 #iej #abj ,feb4 #ai #cbj #bjj #g #bh1jjj #bb1jjj #cfj ,feb4 #bj #agg #ig #i #bb1jjj #af1cjj #cej ,feb4 #ba #aje #eb #f #aj1fjj #c1hjj #bgj ,feb4 #bb #he #db #e ,holiday4 ,feb4 #bc #fj #cj #d ,sunday4 ,feb4 #bd #df #ai #c #c1fjj #a1gjj #abj ,feb4 #be #ca #i #b #b1cjj #a1cjj #fj ,feb4 #bf #cj #h #b #c1hjj #a1cjj #dc ,feb4 #bg #cj #g #a #a1cjj #ijj #db ,feb4 #bh #cg #g #a #a1djj #hjj #ca ,feb4 #bi #abc #di #b #ac1ejj #gej #ce ---------------------------------------- ------------------ ,m>4 #a #ig #dd #e ,sunday4 ,m>4 #b #hb #ce #d #h1jjj #b1ejj #gj ,m>4 #c #hg #ch #d #aa1jjj #f1jjj #ee ,m>4 #d #fg #bi #c #f1jjj #a1djj #ch ,m>4 #e #ei #bc #c #d1djj #b1ejj #cg ,m>4 #f ,discont9u$2 s& filt] be+ us$ = s$im5tation exp]im5ts4 ,illu/ration3 ,figure #i--;,detail ( ,/ra9] ,sy/em4 ,table #ai--,record ( ,exp]im5tal ,filt] ,plant4 ,no4 #c4 ,s& ,filt]4 ,turbidity4 ---------------------------------------- - ,date4 ,rate4 ,loss (,appli$ ,efflu5t1,efflu5t1 head4 wat]4coagulant4 s&4 ---------------------------------------- -------- #aijg4 ---------------------------------------- -------- ,feb4 #ab #b4ii #j4ah #ad 444 #b ,feb4 #ac #c4jj #j4ag #ae 444 #b ,feb4 #ad #c4ai #j4ah #ae 444 #b ,feb4 #ae #c4hf #j4bb #ab 444 #b ,feb4 #af #c4hd #j4bi #ad 444 #b ,feb4 #ag 444 444 444 444 444 ,feb4 #ah 444 444 444 444 444 ,feb4 #ba #c4ia #j4cb #bj 444 #b ,feb4 #bb #c4ie #j4ci #ae 444 #b ,feb4 #bc #c4id #j4dc #bj 444 #c ,feb4 #bd #c4hi #j4dg #bj 444 #c ,feb4 #be #d4ai #j4eb #bj 444 #c ,feb4 #bf #d4ac #j4eg #bj 444 #c ,feb4 #bg #c4cb #j4fb #ag 444 #c ,feb4 #bh #d4da #j4fg #ae 444 #c ---------------------------------------- -------- ,m>4 #a #c4ia #j4gb #ae 444 #c ,m>4 #b #c4ic #j4gi #ae 444 #c ,m>4 #c #c4ij #j4hb #ca 444 #c ,m>4 #d #c4ib #j4hj #ce 444 #c ,m>4 #e #c4if #j4ih #ace 444 #d ,m>4 #f #d4je #a4be #ace #bi #b ,m>4 #g #c4ie #a4eb #ajb #ae #a ,m>4 #h #c4ij #a4fg #ajj #ae #a ,m>4 #i #c4ic #a4hj #ij #ae #a ,m>4 #aj #c4ie #a4ia #hb #af #a ,m>4 #aa #c4if #b4jh #fh #ah #a ,m>4 #ab #d4jb #b4ai #df #ah #a ,m>4 #ac #d4jb #b4ca #dj #ae #a ,m>4 #ad #c4if #b4dd #ci #af #a ,m>4 #ae #d4jg #b4db #ce #bj #a ,m>4 #af #c4he #b4bj #fj #bi #a ,m>4 #ag #c4ie #b4ba #ace #be #a ,m>4 #ah #c4hh #b4hf #agj #be #a ,m>4 #ai #c4hb #c4ca #abe #ba #a ,m>4 #bj #c4gh #c4dg #ajb #bj #a ,m>4 #ba #c4ga #c4gj #abe #bj #a ,m>4 #bb #c4fd #c4ha #aij #be #a ,m>4 #bc #c4eh #c4ie #ahj #bf #a ,m>4 #bd #c4df #d4ah #adj #ai #a ,m>4 #be,scrap$1 #a4jc 94 ( s& remov$4 ,m>4 #bg #d4jf #j4bb #dg #h #a ,m>4 #bh #d4jb #j4cg #ce 444 #j ,m>4 #bi #d4jb #j4df #bf 444 444 ,m>4 #cj,%ut d[n to fill coagulant bas94 444 444 #be 444 444 ,m>4 #ca #d4jj #j4de #ba #ae #a ---------------------------------------- -------- ,apr4 #a #c4ci #j4db #bj #ae #a ,apr4 #b #c4jf #j4df #bd #ag #a ,apr4 #c #c4ja #j4di #bd #ag #a ,apr4 #d #b4ie #j4ej #bj #ae #a ,apr4 #e #b4ie #j4ea #bj #ac #a ,apr4 #f #b4if #j4di #bj #ab #a ,apr4 #g #b4ii #j4dh #bj #ab #a ,apr4 #h #c4ja #j4di #ah #ab #a ,apr4 #i #c4ja #j4ee #ah #ab #a ,apr4 #aj #c4jb #j4eg #cj #ae #j ,apr4 #aa #c4jd #j4fa #ff #af #j ,apr4 #ab #c4ji #j4gb #gb #ac #j ,apr4 #ac #c4jg #j4hh #hj #ai #j ,apr4 #ad #b4ih #a4jd #gg #ah #a ,apr4 #ae #b4ig #a4bj #fb #ah #a ,apr4 #af #c4ja #a4cb #dg #ag #a ,apr4 #ag #c4je #a4dd #ci #ai #j ,apr4 #ah #c4jd #a4da #cj #bj #a ,apr4 #ai #c4jd #a4ce #be #ah #a ,apr4 #bj #c4jg #a4cj #bj #ae #a ,apr4 #ba #c4jg #a4bf #bj #ae #a ,apr4 #bb #c4jd #a4ba #ah #ab #j ,apr4 #bc #c4jf #a4bb #ae #aj #j ,apr4 #bd #b4ii #a4bf #ai #aj #j ,apr4 #be #c4jd #a4bg #cd #ab #j ,apr4 #bf #c4jg #a4bh #df #ab #j ,apr4 #bg #b4id #a4di #eb 444 #j ,apr4 #bh #b4if #a4hh #de 444 #a ,apr4 #bi #b4ii #b4dj #dd #cc #a ,apr4 #cj #c4jj #b4hc #ci #bi #a ---------------------------------------- -------- ,may #a #c4ja #b4ga #ca #ba #a ,may #b #c4ja #b4ea #bd #ae #a ,may #c #c4jj #b4cf #ai #ab #a ,may #d #c4ja #b4bi #af #aj #j ,may #e #c4ja #b4be #ae #i #j ,may #f #c4jf #b4cb #ac #h #j ,may #g #b4if #b4df #ab #g #j ,may #h #c4jj #b4ea #aj #e #j ,may #i #c4jj #b4gg #aj #e #j ,may #aj #c4ja #b4hg #aj #e #j ,may #aa #b4ii #c4af #ab #f #j ,may #ab #c4jj #c4cd #ag #g #j ,may #ac #c4jj #c4dd #ce #i #j ,may #ad #c4ja #c4df #ci #ab #j ,may #ae #c4ja #c4ef #ag 444 #j ,may #af #b4ic #d4jg #bd 444 #j ,may #ag #c4ja #d4cd #ah 444 #j ,may #ah #b4ic #d4be #ae #h #j ,may #ai #b4ig #d4cf #ab #h #j ,may #bj #c4ja #d4fd #ab #h #j ,may #ba #b4ii #d4ee #af #h #j ,may #bb #c4ja #d4eg #bj #h #j ,may #bc #c4jj #d4ea #ae #h #j ,may #bd #b4ih #d4dd #ae #h #j ,may #be #c4jj #d4ch #ae #h #j ,may #bf #c4jj #d4ch #ah #h #j ,may #bg ,%ut d[n to scrape s& filt]2 #a4ji 94 ( s& remov$4 ,may #bh ,clean+ coagulant bas9 & treat+ coagulant bas9 ) #a3b1jjj1jjj solution ( copp] sulphate4 ,may #bi #af 444 444 ,may #cj #c4jj #j4aa #ad #h #a ,may #ca #c4ja #j4aj #ag #h #a ---------------------------------------- -------- ,june #a #c4ja #j4ji #ae #h #a ,june #b #c4ja #j4aj #ag #h #a ,june #c #c4ja #j4aj #bd #aj #a ,june #d #c4jd #j4aa #cg #ac #a ,june #e #c4jj #j4aa #fe #bi #a ,june #f #c4jj #j4aa #gg #df #a ,june #g #b4ii #j4ab #fd #ba #a ,june #h #b4ih #j4ag #df #bb #a ,june #i #c4jj #j4ah #dd #cj #a ,june #aj #c4ja #j4ah #cf #bf #a ,june #aa #c4jj #j4ag #cj #bj #a ,june #ab #c4jj #j4ag #cd #bb #a ,june #ac #b4ii #j4ag #ce #be #a ,june #ad #b4ih #j4ag #ca #bb #a ,june #ae #b4ii #j4ai #cb #bb #a ,june #af #c4jb #j4ba #bf #ah #a ,june #ag #b4ii #j4bc #bf #af #a ,june #ah #c4jb #j4be #ca #bj #a ,june #ai #c4jb #j4bi #cg #bg #a ,june #bj #c4jj #j4cb #cj #ba #a ,june #ba #c4ja #j4cf #be #af #a ,june #bb #c4jj #j4dj #bj #ab #a ,june #bc #b4ig #j4dc #bf #aa #a ,june #bd #b4ig #j4dd #adj #cf #a ,june #be #c4jb #j4de #acj #bg #a ,june #bf ,int]rupt$1 defective met]4 ,june #bg #c4jj #j4dc #fe #ae #j ,june #bh #c4jj #j4dd #dg #ai #j ,june #bi #b4ii #j4dd #cg #bj #j ,june #cj #b4ig #j4db #cj #ai #j ---------------------------------------- -------- ,july #a #b4ii #j4cg #cj #ah #j ,july #b #c4ja #j4cc #cb #ai #j ,july #c #c4jj #j4ca #cf #ba #j ,july #d #c4jj #j4cj #dd #cj #j ,july #e #c4jj #j4bi #dd #ce #j ,july #f #c4jj #j4bh #ci #cj #j ,july #g #c4jj #j4bh #cd #bd #j ,july #h #c4jj #j4bh #be #af #j ,july #i #c4jj #j4bg #bb #ac #j ,july #aj #b4ih #j4bg #dg #bg #a ,july #aa #c4jj #j4bg #ij #da #a ,july #ab #c4jj #j4bi #ig #ba #a ,july #ac #c4jj #j4cd #ij #bj #j ,july #ad #c4jj #j4dj #ij #ai #j ,july #ae #c4jj #j4ed #ie #ah #j ,july #af #c4jj #j4ei #abj #bj #j ,july #ag #c4jj #j4eh #he #af #j ,july #ah #b4ii #j4fa #ef #ac #j ,july #ai #c4ja #j4fa #da #ah #j ,july #bj #b4ii #j4ea #fb #bg #j ,july #ba #c4jj #j4dg #fb #cb #j ,july #bb #c4jj #j4dg #hj #cd #j ,july #bc #c4ja #j4di #aje #ba #j ,july #bd #c4ja #j4fj #ie #ai #j ,july #be #c4jj #j4fh #gg #af #j ,july #bf #b4ii #j4fh #fg #ag #j ,july #bg #c4jj #j4fi #ed #bj #j ,july #bh #c4jj #j4gb #df #bg #j ,july #bi #c4jj #j4gd #cf #bf #j ,july #cj #b4ii #j4gf #bi #ai #j ,july #ca #b4ii #j4gg #ba #ab #j ---------------------------------------- -------- ,aug4 #a #c4jj #j4ge #af #i #j ,aug4 #b #c4jj #j4gd #ae #h #j ,aug4 #c #c4jj #j4gd #af #g #j ,aug4 #d #c4jj #j4ge #ba #f #j ,aug4 #e #c4jj #j4gf #bi #h #j ,aug4 #f #c4jj #j4gi #cd #ab #j ,aug4 #g #b4ii #a4ja #ba #ab #j ,aug4 #h #c4jj #a4ca #ai #aa #j ,aug4 #i #b4ih #a4dd #af #i #j ,aug4 #aj #c4jj #a4dd #bd #i #j ,aug4 #aa #c4jj #a4di #fb #bb #j ,aug4 #ab #c4jj #a4fb #abj #ci #j ,aug4 #ac #b4ig #b4jf #ajg #bb #j ,aug4 #ad #b4ig #c4jf #hb #ai #j ,aug4 #ae #b4ha #c4ia #fe #ae #j ,aug4 #af #c4jj #d4bi #de #ah #j ,aug4 #ag #c4jj #c4hf #ce #bb #j ,aug4 #ah #c4jj #c4dg #ba #ac #j ,aug4 #ai #c4jj #c4di #ah #aj #j ,aug4 #bj #c4jj #c4ef #bj #h #j ,aug4 #ba #c4jj #c4eh #bj #aj #j ,aug4 #bb #b4ii #c4gc #bg #ac #j ,aug4 #bc #c4jj #d4jj #di #cd #j ,aug4 #bd #c4jj #d4je #cf #bf #j ,aug4 #be #b4ih #d4jf #cd #bd #j ,aug4 #bf #c4jj #d4bj #ba #ac #j ,aug4 #bg #c4jj #d4ca #ai #aa #j ,aug4 #bh #b4ii #d4dj #ah #aj #j ,aug4 #bi #c4ja #d4da #ag #i #j ,aug4 #cj #b4ih #d4df #ae #h #j ,aug4 #ca ,scrap$4 #ac 444 444 #a4hh 94 ( s& remov$4 ---------------------------------------- -------- ,sept4 #e #c4jj #j4aj #cd #d #j ,sept4 #f #c4jj #j4aj #afj #c #j ,sept4 #g #c4jj #j4ji #fd #c #j ,sept4 #h #c4jj #j4jh #ef #d #j ,sept4 #i #c4jj #j4jh #ei #c #j ,sept4 #aj #b4ig #j4jg #eg #c #j ,sept4 #aa #b4ih #j4jg #fe #b #j ,sept4 #ab #b4ih #j4jh #gb #b #j ,sept4 #ac #c4jj #j4jh #hg #c #j ,sept4 #ad #c4jj #j4jh #gb #c #j ,sept4 #ae #c4jj #j4jh #fe #c #j ,sept4 #af #c4jj #j4jh #fe #b #j ,sept4 #ag #c4jj #j4jh #eb #b #j ,sept4 #ah #c4jj #j4jh #fj #b #j ,sept4 #ai #b4ih #j4jh #he #b #j ,sept4 #bj #b4ih #j4ji #ajj #b #j ,sept4 #ba #b4ii #j4ji #abj #c #j ,sept4 #bb #c4jj #j4ji #acg #c #j ,sept4 #bc #c4jb #j4ji #aab #d #j ,sept4 #bd #c4jj #j4aj #ajj #d #j ,sept4 #be #c4jj #j4aa #dcb #c #j ,sept4 #bf #b4ii #j4aa #che #b #j ,sept4 #bg #c4jj #j4ab #bde #d #j ,sept4 #bh #b4ih #j4ac #abg #d #j ,sept4 #bi #b4ih #j4ad #aje #d #j ,sept4 #cj #b4ii #j4ae #aae #c #j ---------------------------------------- -------- ,oct4 #a #c4jj #j4ae #hb #c #j ,oct4 #b #b4ih #j4af #fe #c #j ,oct4 #c #c4jj #j4ag #ei #b #j ,oct4 #d #b4ii #j4ag #ee #b #j ,oct4 #e #b4ii #j4ai #ei #b #j ,oct4 #f #b4ih #j4bj #ei #b #j ,oct4 #g #b4ih #j4ba #eb #b #j ,oct4 #h #b4ig #j4ba #ed #b #j ,oct4 #i #b4ih #j4bb #ea #b #j ,oct4 #aj #b4ih #j4bd #ej #b #j ,oct4 #aa #b4ih #j4be #dg #b #j ,oct4 #ab #b4ig #j4bf #cf #c #j ,oct4 #ac #b4ih #j4bg #dj #d #j ,oct4 #ad #b4ih #j4bi #dg #e #j ,oct4 #ae #b4ii #j4ca #da #e #j ,oct4 #af #b4ii #j4cb #ce #d #j ,oct4 #ag #b4ih #j4cd #cj #d #j ,oct4 #ah #c4jj #j4ce #be #d #j ,oct4 #ai #c4jj #j4ce #be #d #j ,oct4 #bj #c4jj #j4ce #bj #c #j ,oct4 #ba #c4jj #j4ce #ai #c #j ,oct4 #bb #b4ii #j4cf #ah #c #j ,oct4 #bc #b4ii #j4cg #ae #c #j ,oct4 #bd #b4ih #j4ch #ae #c #j ,oct4 #be #b4ii #j4ci #ae #c #j ,oct4 #bf #b4ii #j4dj #ae #c #j ,oct4 #bg #b4ii #j4da #ac #b #j ,oct4 #bh #b4ii #j4dc #ac #b #j ,oct4 #bi #b4ih #j4dd #be #b #j ,oct4 #cj #b4ii #j4df #ba #b #j ,oct4 #ca #b4if #j4dh #be #c #j ---------------------------------------- -------- ,nov4 #d #c4jj #j4ea #abe #b #j ,nov4 #e #c4jj #j4ec #ahe #b #j ,nov4 #f #b4ii #j4ef #agj #b #j ,nov4 #g #b4ii #j4fj #ajj #c #j ,nov4 #h #b4ii #j4fd #ie #c #j ,nov4 #i #b4ii #j4gj #hj #d #j ,nov4 #aj #b4ii #j4gi #fg #d #j ,nov4 #aa #b4ii #a4jj #eb #f #j ,nov4 #ab #b4ii #a4df #dj #i #j ,nov4 #ac #b4ih #b4ji #cf #aj #j ,nov4 #ad #b4ii #b4gd #db #i #j ,nov4 #ae #b4ii #b4ih #ce #h #j ,nov4 #af #b4ii #c4jc #bf #h #j ,nov4 #ag #c4jj #c4jg #bj #f #j ,nov4 #ah #c4jj #c4ji #ag #e #j ,nov4 #bj #b4ii #c4ag #de #c #j ,nov4 #ba #b4ii #c4bb #eb #c #j ,nov4 #bb #b4ii #c4bg #fe #e #j ,nov4 #bc #b4ii #c4cc #di #h #j ,nov4 #bd #b4ii #c4da #acd #aa #j ,nov4 #be #b4ih #c4ed #bbe #ab #a ,nov4 #bf #b4ih #c4fh #bcg #ac #a ,nov4 #bg #b4ii #c4if #ahe #af #a ,nov4 #bh #b4ih #d4bi #acj #ah #a ,nov4 #bi #b4ig #d4dh #hj #ai #a ,nov4 #cj #b4ig #d4ed #ed #ae #a ---------------------------------------- -------- ,dec4 #f ,scrap$1 #a4fb 94 ( s& remov$4 ,dec4 #h #b4ig #j4af #ab #c #j ,dec4 #i #b4ih #j4af #aa #c #j ,dec4 #aj #b4ih #j4ae #ab #c #j ,dec4 #aa #b4ii #j4ae #bee #c #j ,dec4 #ab #c4jj #j4ac #bab #b #j ,dec4 #ac #b4ih #j4ac #die #d #j ,dec4 #ad #b4ii #j4ad #ceg #e #j ,dec4 #ae #b4ii #j4ae #aeg #f #j ,dec4 #af #b4ih #j4af #ij #i #j ,dec4 #ag #b4ih #j4bj #gj #ab #j ,dec4 #ah #b4ih #j4bd #di #ab #a ,dec4 #ai #b4ih #j4bi #ci #i #a ,dec4 #bj #b4ih #j4cf #db #g #a ,dec4 #ba #b4ig #j4de #bf #e #j ,dec4 #bb #b4ih #j4eg #bj #d #j ,dec4 #bc #b4ih #j4ga #cd #c #j ,dec4 #bd #b4ih #j4hc #aie #b #j ,dec4 #be #b4ih #j4ig #dde #b #j ,dec4 #bf #b4ih #a4aa #cgj #b #j ,dec4 #bg #b4ih #a4bg #bde #c #j ,dec4 #bh #b4ih #a4dj #ajb #d #j ,dec4 #bi #b4ih #a4fj #ge #c #j ,dec4 #cj #b4ig #a4he #ef #c #j ,dec4 #ca #b4ih #b4jg #ci #b #j ---------------------------------------- -------- #aijh4 ---------------------------------------- -------- ,jan4 #a #b4ii #b4aa #ca #b #j ,jan4 #b #b4ih #b4ag #ci #b #j ,jan4 #c #b4ih #b4bf #cf #b #j ,jan4 #d #b4ih #b4cd #cb #b #j ,jan4 #e #b4ih #b4da #bf #b #j ,jan4 #f #b4ih #b4di #bj #b #j ,jan4 #g #b4ih #b4eh #bj #b #j ,jan4 #h #b4ii #b4fa #bb #b #j ,jan4 #i #b4ii #b4fc #de #b #j ,jan4 #aj #b4ih #b4fg #gj #b #j ,jan4 #aa #b4ih #b4gb #ef #b #j ,jan4 #ab #b4ih #b4gh #dj #b #j ,jan4 #ac #b4ih #b4hd #aaj #b #j ,jan4 #ad #b4ih #b4ie #baj #b #j ,jan4 #ae #b4ih #c4jg #cbe #c #j ,jan4 #af #b4ih #c4bc #cfj #e #f ,jan4 #ag #b4ig #c4gc #bdb #f #j ,jan4 #ah #b4ih #d4db #acg #f #j ,jan4 #ai #b4ii #d4ge #aag #e #j ,jan4 #ba ,scrape1 #a4de 94 ( s& remov$4 ,jan4 #bc #c4jj #j4ad #dj #c #j ,jan4 #bd #c4jj #j4ad #dj #c #j ,jan4 #be #c4jj #j4ac #ci #c #j ,jan4 #bf #c4jj #j4ac #cb #c #j ,jan4 #bg #c4jj #j4ac #cb #b #j ,jan4 #bh #b4ii #j4ae #de #c #j ,jan4 #bi #b4ii #j4bj #fi #f #a ,jan4 #cj #b4ii #j4bd #eg #h #a ,jan4 #ca #b4ii #j4cj #db #f #a ---------------------------------------- -------- ,feb4 #a #b4ii #j4cd #ci #e #a ,feb4 #b #b4ii #j4da #bg #d #a ,feb4 #c #b4ii #j4ea #bi #c #j ,feb4 #d #b4ii #j4ef #be #c #j ,feb4 #e #b4ii #j4eh #bd #d #j ,feb4 #f #b4ii #j4fa #bj #f #j ,feb4 #g #c4jj #j4fd #ag #h #a ,feb4 #h #b4ii #j4ff #ae #h #a ,feb4 #i #c4jj #j4fg #ad #h #a ,feb4 #aj #b4ii #j4fg #aa #h #a ,feb4 #aa #c4jj #j4ff #aj #g #a ,feb4 #ab #c4ja #j4fd #h #f #a ,feb4 #ac #c4jj #j4fb #i #e #a ,feb4 #ad #c4jj #j4fa #i #e #a ,feb4 #ae #c4jj #j4fj #fa #e #a ,feb4 #af #c4jj #j4fj #hj #f #a ,feb4 #ag #c4jj #j4fb #hj #ad #a ,feb4 #ah #b4ii #j4fg #acj #bj #a ,feb4 #ai #b4ii #j4gf #cbj #ah #b ,feb4 #bj #b4ii #j4hc #agg #ae #b ,feb4 #bi #c4jj #j4he #abc #h #a ---------------------------------------- -------- ,m>4 #a #c4jj #j4hg #ig #i #a ,m>4 #b #b4ii #j4ib #hb #ac #a ,m>4 #c #b4ih #j4if #hg #ai #a ,m>4 #d #b4ii #a4jb #fg #ba #a ,m>4 #e #b4ii #a4jh #ei #be #a ,m>4 #f #b4ii #a4ae #gb #be #b ,m>4 #g #b4ih #a4ba #hb #be #b ,m>4 #h #b4ii #a4be #ib #bi #b ,m>4 #i #b4ii #a4cj #abe #cd #b ,m>4 #aj #b4ii #a4ce #adb #ci #b ,m>4 #aa #b4ii #a4ci #aee #ce #b ,m>4 #ab #b4ii #a4db #ace #bi #b ,m>4 #ac #b4ii #a4df #abb #ai #b ,m>4 #ad #b4ii #a4dg #ig #ab #a ,m>4 #ae #b4ii #a4dh #gg #h #a ,m>4 #af #c4jj #a4eb #fe #i #j ,m>4 #ag #b4ii #a4ff #ei #g #j ,m>4 #ah #b4ii #a4gb #fg #aa #a ,m>4 #ai #b4ii #a4ge #fj #bd #a ,m>4 #bj #b4ii #a4ha #eg #be #a ,m>4 #ba #b4ii #a4hi #fg #bb #a ,m>4 #bb #b4ii #a4ie #hj #ba #a ,m>4 #bc #c4jj #b4jj #ij #bf #a ,m>4 #bd #b4ih #b4jf #hb #cb #a ,m>4 #be #b4ii #b4ag #fg #ci #a ,m>4 #bf #b4ii #b4bd #fj #cf #a ,m>4 #bg #b4ii #b4bi #ei #cj #a ,m>4 #bh #c4jj #b4cb #ea #ba #a ,m>4 #bi #b4ii #b4ce #ca #ah #a ,m>4 #cj #c4jj #b4ch #cj #ad #a ,m>4 #ca #b4ii #b4dc #ci #i #a ---------------------------------------- -------- ,apr4 #a #b4ii #b4ej #dd #g #a ,apr4 #b #b4ii #b4eh #db #h #a ,apr4 #c #b4ii #b4fe #da #aa #a ,apr4 #d #b4ii #b4gd #ed #ab #a ,apr4 #e #c4jj #b4hb #ej #ab #a ,apr4 #f #b4ii #b4hh #da #ad #a ,apr4 #g #b4ii #b4ih #ce #ac #a ,apr4 #h #b4ih #c4ae #ci #aa #a ,apr4 #i #b4ii #c4ce #dj #h #a ,apr4 #aj #b4ih #c4ej #dj #h #a ,apr4 #aa #b4ii #c4fe #de #g #j ,apr4 #ab #b4ii #c4gi #eb #e #j ,apr4 #ac #b4ii #c4ib #ej #d #j ,apr4 #ad #b4ii #d4je #de #d #j ,apr4 #ae #b4ii #d4af #de #c #j ,apr4 #af 444 #d4bd #de #c #j ,apr4 #ba ,scrap$1 #j4ab 94 ( s& remov$4 ,apr4 #bc 444 #j4ac #be #b #j ,apr4 #bd #c4jj #j4ab #ba #b #j ,apr4 #be #c4jj #j4aj #bj #b #j ,apr4 #bf #c4jj #j4aj #ba #c #j ,apr4 #bg #c4jj #j4aj #ah #c #j ,apr4 #bh #c4jj #j4aj #bj #c #j ,apr4 #bi #c4jj #j4ji #bd #c #j ,apr4 #cj #c4jj #j4ji #ba #c #j ---------------------------------------- -------- ,may #a #c4jj #j4ji #cb #c #j ,may #b #c4jj #j4ji #bf #c #j ,may #c #c4jj #j4aa #bb #e #j ,may #d #c4jj #j4aa #ai #d #j ,may #e #c4jj #j4aa #ah #d #j ,may #f #b4ii #j4ab #ah #c #j ,may #g #c4jj #j4ac #ai #c #j ,may #h #c4jj #j4ad #ai #c #j ,may #i #b4ii #j4ad #ah #c #j ,may #aj #c4jj #j4ad #cj #c #j ,may #aa #c4jj #j4ac #fj #c #j ,may #ab #c4jj #j4ac #gj #c #j ,may #ac #c4jj #j4ac #ff #g #j ,may #ad #c4jj #j4ad #de #i #j ,may #ae #b4ii #j4ad #ci #g #j ,may #af #b4ii #j4bb #di #f #j ,may #ag #b4ii #j4cc #df #d #j ,may #ah #b4ii #j4dd #ca #c #j ,may #ai #b4ih #j4fb #cf #c #j ,may #bj #b4ii #j4ge #da #c #j ,may #ba #b4ii #j4hi #ca #d #j ,may #bb #b4ii #a4ja #ej #e #j ,may #bc #b4ii #a4ab #abg #e #j ,may #bd #b4ii #a4bj #aaj #f #j ,may #be #b4ii #a4bd #ij #i #j ,may #bf #b4ih #a4ca #ace #aa #j ,may #bg #b4ig #a4ed #aaj #ab #j ,may #bh #b4ig #a4ha #ij #aj #j ,may #bi #b4ig #b4jh #gj #g #j ,may #cj #b4ig #b4cf #ej #e #j ,may #ca #b4ih #b4fc #cd #d #j ---------------------------------------- -------- ,june #a #b4ih #b4gg #ce #b #j ,june #b #b4ih #b4hd #ci #b #j ,june #c #b4ih #c4jb #ce #c #j ,june #d #c4jj #c4ja #cj #d #j ,june #e #c4jj #b4ig #cj #e #j ,june #f #c4ja #b4ha #bg #e #j ,june #g #c4ja #b4fb #bb #e #j ,june #h #c4ja #b4ch #bj #d #j ,june #i #c4jj #b4ai #bj #c #j ,june #aj #c4ja #b4jb #ag #c #j ,june #aa #b4ii #a4hi #ab #c #j ,june #ab #b4ih #a4ib #aa #b #j ,june #ac #b4ih #a4ii #cf #b #j ,june #ad #b4ih #b4jh #ci #b #j ,june #ae #b4ih #b4be #be #d #j ,june #af #b4ih #b4ed #cd #e #j ,june #ag #b4ig #b4he #fd #e #j ,june #ah #b4ig #c4bj #eg #e #j ,june #ai #b4ih #c4dg #df #g #j ,june #bj #b4ii #c4gc #cg #h #j ,june #ba #b4ii #d4aj #bi #h #j ,june #bb #b4ii #d4dd #be #f #j ,june #bc #b4ii #d4fa #be #e #j ,june #bf #c4ja #j4ji #ae #b #j ,june #bg #c4jj #j4ji #ab #b #j ,june #bh #c4jj #j4ji #i #b #j ,june #bi #c4jj #j4jh #h #b #j ,june #cj #c4jj #j4jg #aj #b #j ---------------------------------------- -------- ,july #a #c4jj #j4jg #f #b #j ,july #b #c4jj #j4jg #h #b #j ,july #c #c4jj #j4jg #h #b #j ,july #d #c4jj #j4jg #i #b #j ,july #e #c4jj #j4jg #aj #b #j ,july #f #c4jj #j4jg #i #b #j ,july #g #c4jj #j4jg #h #b #j ,july #h #c4jj #j4jg #i #b #j ,july #i #c4jj #j4jg #h #b #j ,july #aj 444 444 444 444 444 ,july #aa #c4jj #j4jh #ab #b #j ,july #ab #c4jj #j4jh #aa #b #j ,july #ac #c4jj #j4jh #aj #b #j ,july #ad #c4jj #j4ji #af #b #j ,july #ae #c4jj #j4ji #ag #b #j ,july #af #c4jj #j4aj #ad #b #f ,july #ag #c4jj #j4aj #aj #b #j ,july #ah #c4jj #j4aa #aa #b #j ,july #ai #c4jj #j4aa #ab #b #j ,july #bj #c4jj #j4ab #aj #b #j ,july #ba #c4jj #j4ab #aj #b #j ,july #bb #c4jj #j4ac #ac #b #j ,july #bc #b4ii #j4ac #ed #b #j ,july #bd #b4ii #j4ad #cje #b #j ,july #be #c4jj #j4ae #ccj #d #j ,july #bf #c4jj #j4ae #bij #i #j ,july #bg #c4jj #j4af #cce #aa #j ,july #bh #b4ii #j4ag #agj #aj #j ,july #bi #c4jj #j4ag #ahj #h #j ,july #cj #b4ii #j4ah #bcg #g #j ,july #ca #c4jj #j4ai #bej #f #j ,table #ai--7;,cont9u$47 ,bact]ia4 ,coagulant4 ---------------------------------------- ,date4 ,appli$ ,efflu5t1,efflu5t1,gra9s1 p] wat]4 coagulant4 s&4 gallon4 ---------------------------------------- -------- #aijg4 ---------------------------------------- -------- ,feb4 #ab 444 444 444 444 ,feb4 #ac #fjj 444 444 444 ,feb4 #ad #fej 444 444 444 ,feb4 #ae #fjj 444 #b1ejj 444 ,feb4 #af #hej 444 #a1fjj 444 ,feb4 #ag 444 444 444 444 ,feb4 #ah #a1bjj 444 #cjj 444 ,feb4 #ba #a1hjj 444 #eej 444 ,feb4 #bb #b ,holiday4 ,feb4 #bc #a1fjj 444 #a1ajj 444 ,feb4 #bd #c ,sunday4 ,feb4 #be #a1djj 444 #fjj 444 ,feb4 #bf #gjj 444 #fej 444 ,feb4 #bg #gjj 444 #b1cjj 444 ,feb4 #bh #hjj 444 #eej 444 ---------------------------------------- -------- ,m>4 #a #fej 444 #cjj 444 ,m>4 #b #a1jjj 444 #bgj 444 ,m>4 #c ,sunday4 ,m>4 #d #a1bjj 444 #adj #a4de ,m>4 #e #ac1jjj 444 #aij #a4id ,m>4 #f #ah1jjj #b1ajj #afj #b4jc ,m>4 #g #bd1jjj #c1ejj #afj #a4ej ,m>4 #h #bb1jjj #a1hjj #acj #a4ch ,m>4 #i #bd1jjj #c1ejj #acj #a4cg ,m>4 #aj ,sunday4 #a4bf ,m>4 #aa #ah1jjj #f1jjj #abj #a4bd ,m>4 #ab #aa1jjj #i1jjj #adj #a4jh ,m>4 #ac #i1jjj #e1jjj #abj #j4id ,m>4 #ad #e1ejj #c1fjj #ij #j ,m>4 #ae #f1ejj #c1hjj #he #j ,m>4 #af #e1jjj #c1ejj #ajj #a4bf ,m>4 #ag ,sunday4 #a4eb ,m>4 #ah #i1jjj #a1ijj #he #a4ge ,m>4 #ai #g1jjj #gjj #fe #a4eg ,m>4 #bj #d1hjj #a1ejj #fj #a4ca ,m>4 #ba #h1ejj #a1ejj #gj #a4ch ,m>4 #bb #g1ejj #a1ajj #ce #a4eg ,m>4 #bc #g1ejj #dgj #ee #a4fh ,m>4 #bd ,sunday4 #a4eb ,m>4 #be,scrap$1 #a4jc 94 ( s& remov$4 ,m>4 #bg #b1bjj #dhj #fj #a4jh ,m>4 #bh #a1cjj #bej #hj #a4jj ,m>4 #bi #gjj #bdj #fe #j ,m>4 #cj,%ut d[n to fill coagulant bas94 #caj 444 444 #j ,m>4 #ca ,sunday4 #j ---------------------------------------- -------- ,apr4 #a #fjj #a1jjj #dc #j ,apr4 #b #bgj ,lo/4 #ce #j ,apr4 #c #dfj ,apr4 #da #j ,apr4 #d #bhj #eej #bg #j ,apr4 #e #dej #a1jjj #fj #j ,apr4 #f #cbj #ej #ce #j ,apr4 #g ,sunday4 #j ,apr4 #h #ccj #fej #bb #j ,apr4 #i #adj #gej #ba #j ,apr4 #aj #gej #e1jjj #bi #j ,apr4 #aa #d1jjj #eej #be #a4aa ,apr4 #ab #ad1jjj #b1bjj #ag #a4ae ,apr4 #ac #ac1jjj #c1ijj #be #a4ad ,apr4 #ad ,sunday4 #a4ag ,apr4 #ae #g1jfj #b1bjj #ai #a4ji ,apr4 #af #c1fjj #ijj #bb #a4jh ,apr4 #ag #a1fjj #a1ajj #ab #j ,apr4 #ah #a1haj #a1hgj #ad #j ,apr4 #ai #gij #iaj #ad #j ,apr4 #bj #edj #dhj #ae #j ,apr4 #ba ,sunday4 444 ,apr4 #bb #bce #dbj #ba #j ,apr4 #bc #agj #dbj #h #j ,apr4 #bd #aej #bej #ag #j ,apr4 #be #gjj #bfj #ai #j ,apr4 #bf #a1bjj #cbj #hj #j ,apr4 #bg #a1gjj #a1ejj #gj #j ,apr4 #bh ,sunday4 #j ,apr4 #bi #fjj #a1djj #ai #j ,apr4 #cj #eej #a1bjj #ad #j ---------------------------------------- -------- ,may #a #ejj #a1cjj #bj #j ,may #b #ejj #hej #af #j ,may #c #bhj #fej #cd #j ,may #d #djj #eej #bd #j ,may #e ,sunday4 #j ,may #f #cij #dfj #hj #j ,may #g #aij 444 #ah #j ,may #h 444 444 444 #j ,may #i #cij #a1ajj #ad #j ,may #aj #cjj #ejj #ba #j ,may #aa #cij #fej #af #j ,may #ab ,sunday4 #j ,may #ac #fjj #dgj #bg #j ,may #ad #ejj #eej #be #j ,may #ae #ejj #ijj #bc #j ,may #af #bij #b1ejj #be #j ,may #ag #bfj #b1jjj #af #j ,may #ah #aij #fjj #ai #j ,may #ai ,sunday4 #j ,may #bj #bfj #dej #ae #j ,may #ba #bfj #ccj #ad #j ,may #bb #bhj #cij #bb #j ,may #bc #acj #bdj #ai #j ,may #bd #agj #bdj #cj #j ,may #be #cdj #djj #da #j ,may #bf ,sunday4 #j ,may #bg ,%ut d[n to scrape s& filt]2 #a4ji 94 ( s& remov$4 ,clean+ ,may #bh coagulant bas9 & treat+ coagulant bas9 ) #a3b1jjj1jjj ,may #bi solution ( copp] sulphate4 ,may #cj ,holiday4 #j ,may #ca #chj #ah1jjj #aej #j ---------------------------------------- -------- ,june #a #ijj #g1jjj #aej #j ,june #b ,sunday4 #j ,june #c #eej #h1jjj #acj #j ,june #d #f1ejj #g1ejj #adj #j ,june #e #c1bjj #c1fjj #aaj #j ,june #f #a1ejj #hjj #fj #a4ag ,june #g #b1ajj #a1ejj #ij #a4ah ,june #h #ffj #a1jjj #fj #j ,june #i ,sunday4 #j ,june #aj #bdj #djj #cb #j ,june #aa #bhj #cjj #ca #j ,june #ab #ccj 444 #bh #j ,june #ac #dhj #dhj #ci #j ,june #ad #ddj #eej #cb #j ,june #ae #dbj #dej #bg #j ,june #af ,sunday4 #j ,june #ag #cdj #gej #ad #j ,june #ah #ddj #gej #ba #j ,june #ai #ejj #dfj #ce #j ,june #bj #ccj #ddj #hh #j ,june #ba #agj #cgj #bc #j ,june #bb #ajj #cjj #ag #j ,june #bc ,sunday4 #j ,june #bd #a1gjj #cej #bb #a4ei ,june #be #djj #bej #af #a4ee ,june #bf #gej #ccj 444 #j ,june #bg 444 #a1djj 444 #j ,june #bh 444 #a1djj #abj #j ,june #bi #bbj #cjj 444 #j ,june #cj ,sunday4 #j ---------------------------------------- -------- ,july #a #djj #fjj #he #j ,july #b #ahj #a1jjj #ej #j ,july #c #cej #caj #ba #j ,july #d ,holiday4 ,july #e #eej #djj #da #j ,july #f #bej #bhj #bb #j ,july #g ,sunday4 #j ,july #h #bbj #bfj #bg #j ,july #i #ej #dj #ai #j ,july #aj ,lo/4 ,lo/4 ,lo/4 #j ,july #aa #aej #ej #h #a4bg ,july #ab #cjj #bjj #ac #a4bg ,july #ac #bbj #afj #ag #a4bg ,july #ad ,sunday4 #a4bg ,july #ae #cge #aej #a4bg ,july #af ,lo/4 #ej ,lo/4 #a4cf ,july #ag #bgj #fj #c #a4bf ,july #ah #a1fge #gj #a4ag ,july #ai #dej #gjj #aa #j ,july #bj #cjj #gbj #h #j ,july #ba ,sunday4 #j ,july #bb #a1djj #efj #ad #a4ag ,july #bc #c1gjj #dij #dj #a4be ,july #bd #ggj #aaj #hj #a4bg ,july #be #bej #hj #e #a4bb ,july #bf #adj #dj #d #j ,july #bg #cjj #acj #ba #j ,july #bh ,sunday4 #j ,july #bi #dgj #bij #ajj #j ,july #cj ,lo/4 ,lo/4 ,lo/4 #j ,july #ca ,july ,july ,july #j ---------------------------------------- -------- ,aug4 #a ,lo/4 ,lo/4 ,lo/4 #j ,aug4 #b #acj #adj #d #j ,aug4 #c #abj #ahj #f #j ,aug4 #d ,sunday4 ,aug4 #e #bcj #ajj #dd #j ,aug4 #f #he #dgj 444 #j ,aug4 #g #bjj #dej 444 #j ,aug4 #h #ajj #ahj #de #j ,aug4 #i #ge #hj #af #j ,aug4 #aj #fj #ij #aa #j ,aug4 #aa ,sunday4 ,aug4 #ab #fbj #bfj #af #a4de ,aug4 #ac #hbj #ebj #aj #a4ch ,aug4 #ad #hej #abj #bf #a4bb ,aug4 #ae #aej #bfj #f #a4ag ,aug4 #af #bgj #cdj #ag #j ,aug4 #ag #cdj #bjj #ac #j ,aug4 #ah ,sunday4 ,aug4 #ai #ahj #bbj #ag #j ,aug4 #bj #baj #ahj #af #j ,aug4 #ba #a1cjj #fej #h #j ,aug4 #bb #c1hjj #cfj #f #j ,aug4 #bc #b1ejj #gjj #aj #j ,aug4 #bd #c1ijj #fcj #ab #j ,aug4 #be ,sunday4 ,aug4 #bf #gjj #caj #af #j ,aug4 #bg #dgj #bej #ab #j ,aug4 #bh #ejj #afj #ah #j ,aug4 #bi #cfj #aaj #i #j ,aug4 #cj #cbj #caj #ad #j ,aug4 #ca #bjj #ajj 444 #j ---------------------------------------- -------- ,sept4 #e #cfj #iej 444 #a4jd ,sept4 #f #ae1jjj #a1ejj #aij #a4ce ,sept4 #g #b1jjj #bfj #ajj #a4bj ,sept4 #h ,sunday4 444 #a4jd ,sept4 #i #bbj #ahj #ch #a4jd ,sept4 #aj #ah1jjj #aej #bi #a4jf ,sept4 #aa #b1gjj #bjj #cg #a4jd ,sept4 #ab #a1jjj #abe #ai #a4jd ,sept4 #ac #b1cjj #bjj #gb #a4bj ,sept4 #ad #b1djj #cfj #cf #a4ab ,sept4 #ae ,sunday4 #a4jd ,sept4 #af ,lo/4 ,lo/4 #ch #a4jd ,sept4 #ag #dbj #bjj #ch #a4jg ,sept4 #ah #ijj #bjj #ag #a4jg ,sept4 #ai #b1jjj #bbj #be #a4ab ,sept4 #bj #d1bjj #cbj #ca #a4bd ,sept4 #ba #a1ajj #afj #ai #a4cc ,sept4 #bb ,sunday4 #a4de ,sept4 #bc #b1ajj #aij #ae #a4da ,sept4 #bd #d1jjj #fbj #ac #a4cc ,sept4 #be #ef1jjj #bij #g #a4hc ,sept4 #bf #a1cjj #iej #ai #b4cd ,sept4 #bg #d1jjj ,lo/4 #bj #a4ia ,sept4 #bh #ae1jjj #a1jjj #h #a4ed ,sept4 #bi ,sunday4 #a4cd ,sept4 #cj ,lo/4 ,lo/4 #df #a4ce ---------------------------------------- -------- ,oct4 #a #fjj #a1gjj #bb #a4bd ,oct4 #b #d1djj #eej #h #a4ji ,oct4 #c #ijj #ccj #ae #a4jd ,oct4 #d #hej #bej #aa #a4jc ,oct4 #e #b1jjj #dej #be #a4jd ,oct4 #f ,sunday4 #a4jd ,oct4 #g #a1bej #b1cjj #db #a4jd ,oct4 #h #aa1jjj #ajj #ae #a4jd ,oct4 #i #b1jjj #a1fjj #g #a4jd ,oct4 #aj #hjj ,lo/4 #bd #a4jd ,oct4 #aa #b1jjj #a1bjj #ba #j ,oct4 #ab #a1bjj #a1bjj #ai #j ,oct4 #ac ,sunday4 #j ,oct4 #ad #a1bjj #hcj #be #j ,oct4 #ae #ijj ,lo/4 #aje #j ,oct4 #af ,lo/4 #eej #ai #j ,oct4 #ag #eej #hjj #ba #j ,oct4 #ah #bfj #cej #i #j ,oct4 #ai #gej #caj #ce #j ,oct4 #bj ,sunday4 #j ,oct4 #ba #dhj #edj #ce #j ,oct4 #bb #bcj #ddj #ag #j ,oct4 #bc #bej #ddj #ci #j ,oct4 #bd #cjj #ejj #fj #j ,oct4 #be #dej #daj #fe #j ,oct4 #bf #dej #ejj #dd #j ,oct4 #bg ,sunday4 #j ,oct4 #bh #aij #ejj #ej #j ,oct4 #bi #chj #fj #ge #j ,oct4 #cj #dej #ahj #c #j ,oct4 #ca #b1cjj #cij #ge #j ---------------------------------------- -------- ,nov4 #d 444 444 444 #j ,nov4 #e #f1jjj #a1fjj #ij #a4gj ,nov4 #f #e1jjj #c1ijj #f #a4gj ,nov4 #g #ad1jjj #cjj #i #a4dh ,nov4 #h #a1ijj #bcj #b #a4bg ,nov4 #i #d1jjj #b1gjj #bjj #j ,nov4 #aj ,sunday4 #j ,nov4 #aa #a1ijj #b1jjj #bjj #j ,nov4 #ab #g1ejj #b1cjj #afj #j ,nov4 #ac #a1fjj #a1ajj #agj #j ,nov4 #ad #b1gjj #iej #acj #j ,nov4 #ae #a1hjj #hjj #aa #j ,nov4 #af #a1ajj #hjj #ij #j ,nov4 #ag ,sunday4 #j ,nov4 #ah #a1fjj #gjj #ajj #j ,nov4 #bj #f1ejj #abj #abj #j ,nov4 #ba #i1ijj #a1jjj #hj #j ,nov4 #bb #aj1jjj #c1 #bjj #ij #j ,nov4 #bc #ah1jjj #b1 #djj #ajj #j ,nov4 #bd ,sunday4 #j ,nov4 #be #ej1jjj #b1 #ajj #fe #a4fh ,nov4 #bf #dj1jjj #b1 #djj #ie #a4gf ,nov4 #bg #af1jjj #b1 #fjj #fj #a4gd ,nov4 #bh ,holiday4 #a4eg ,nov4 #bi #aj1jjj #b1 #ejj #fe #a4ej ,nov4 #cj #c1hjj #a1 #ijj #he #j ---------------------------------------- -------- ,dec4 #f ,scrap$1 #a4fb 94 ( s& remov$4 ,dec4 #h ,sunday4 #a4ag ,dec4 #i #a1bjj #daj #aj #a4ag ,dec4 #aj #hjj #eej #aej #a4ag ,dec4 #aa #f1ejj #fjj #acj #a4eb ,dec4 #ab #dh1jjj #ejj #acj #a4ii ,dec4 #ac #db1jjj #ejj #abj #b4jf ,dec4 #ad #di1jjj #gej #aej #b4ab ,dec4 #ae ,sunday4 #a4fi ,dec4 #af #ai1jjj #ijj #bj #a4bh ,dec4 #ag #ba1jjj #djj #agj #a4ag ,dec4 #ah #f1ejj #g1jjj #cej #a4ag ,dec4 #ai ,lo/4 ,lo/4 ,lo/4 #a4ag ,dec4 #bj ,dec4 ,dec4 ,dec4 #a4ag ,dec4 #ba ,dec4 ,dec4 ,dec4 #a4ag ,dec4 #bb ,sunday4 #a4ag ,dec4 #bc #a1djj #a1cjj #bbj #a4ag ,dec4 #bd #i1jjj #a1jjj #adj #a4di ,dec4 #be ,holiday4 #b4dc ,dec4 #bf #ea1jjj #a1jjj #ci #b4ae ,dec4 #bg #ee1jjj #a1fjj #gj #a4ia ,dec4 #bh #aj1jjj #a1jjj #hj #a4ej ,dec4 #bi ,sunday4 #a4ba ,dec4 #cj #d1djj #gjj #hj #a4ag ,dec4 #ca #ad1jjj #a1bjj #fe #a4ag ---------------------------------------- -------- #aijh4 ---------------------------------------- -------- ,jan4 #a ,holiday4 #a4ag ,jan4 #b #d1djj #gjj #ai #a4ag ,jan4 #c #c1ajj #a1jjj #ac #a4ag ,jan4 #d #b1djj #eej #ai #a4ag ,jan4 #e ,sunday4 #a4ag ,jan4 #f #fjj #bcj #ah #a4ag ,jan4 #g #a1ajj #cgj #ab #a4ag ,jan4 #h #a1ijj #a1ajj #bj #a4ag ,jan4 #i #ac1jjj #a1bjj #bb #a4ba ,jan4 #aj #aj1jjj #gjj #af #a4ag ,jan4 #aa #af1jjj #a1bjj #aa #a4ag ,jan4 #ab ,sunday4 #a4ag ,jan4 #ac #h1ejj #ij #f #a4bg ,jan4 #ad #af1jjj #aej #bc #a4ef ,jan4 #ae #bd1jjj #a1ajj #ai #a4ib ,jan4 #af #bh1jjj #a1jjj #ad #b4aj ,jan4 #ag #fe1jjj #dij #bc #a4ia ,jan4 #ah #g1jjj #a1fjj #ad #a4ff ,jan4 #ai ,sunday4 #a4ej ,jan4 #ba ,scrape1 #a4de 94 ( s& remov$4 ,jan4 #bc 444 444 444 #a4ag ,jan4 #bd #b1cjj #eej #ee #a4ag ,jan4 #be #a1ajj #hej #ie #j ,jan4 #bf ,sunday4 #j ,jan4 #bg #cjj #bhj #fj #j ,jan4 #bh #a1bjj #gjj #gj #j ,jan4 #bi #a1jjj #ijj #ge #j ,jan4 #cj #a1djj #fej #ej #j ,jan4 #ca #a1ajj #fjj #cf #j ---------------------------------------- -------- ,feb4 #a #gej #ej #be #j ,feb4 #b ,sunday4 #j ,feb4 #c #a1cjj #bbj #af #j ,feb4 #d #fjj #cgj #aj #j ,feb4 #e #gej #gjj #ba #j ,feb4 #f #b1jjj #fej #d #j ,feb4 #g 444 #daj #bf #j ,feb4 #h #ijj #afj #db #j ,feb4 #i ,sunday4 #j ,feb4 #aj #hej #dej #ah #j ,feb4 #aa #a1jjj #fjj #bf #j ,feb4 #ab #gej #cej #af #j ,feb4 #ac #gjj #abj #aj #j ,feb4 #ad #a1bjj #iej #dc #j ,feb4 #ae #e1ejj #a1jjj #bc #j ,feb4 #af ,sunday4 #j ,feb4 #ag #cc1jjj #f1ajj #cf #j ,feb4 #ah 444 #b1jjj #aa #j ,feb4 #ai #bh1jjj #i1jjj #abj #j ,feb4 #bj #bb1jjj #h1ejj #aij #j ,feb4 #bi 444 444 444 #j ---------------------------------------- -------- ,m>4 #a ,sunday4 #j ,m>4 #b #h1jjj #d1djj #ej #j ,m>4 #c #aa1jjj #b1ajj #bf #j ,m>4 #d #f1jjj #d1gjj #g #j ,m>4 #e #d1djj #aj1jjj #cf #j ,m>4 #f #g1jjj #g1djj #ej #j ,m>4 #g #i1ejj #f1ejj #bh #j ,m>4 #h ,sunday4 #j ,m>4 #i #aa1jjj #d1hjj #be #j ,m>4 #aj #h1ejj #a1bjj #bc #j ,m>4 #aa #f1ejj #b1djj #bj #j ,m>4 #ab #e1ijj #a1ejj #aa #j ,m>4 #ac #a1ijj #a1ajj #ab #j ,m>4 #ad #a1hjj #gjj #f #j ,m>4 #ae ,sunday4 #j ,m>4 #af #a1djj #gjj #h #j ,m>4 #ag #ijj #hjj #aa #j ,m>4 #ah #a1jjj #fej #h #j ,m>4 #ai 444 #fjj #ah #j ,m>4 #bj #a1cjj #gej #bj #j ,m>4 #ba #hjj #dhj #ah #j ,m>4 #bb ,sunday4 #j ,m>4 #bc #d1fjj #ddj #ai #j ,m>4 #bd #b1ejj #a1bjj #aj #j ,m>4 #be #a1fjj #fej #bj #j ,m>4 #bf #eej #daj #g #j ,m>4 #bg #ijj #ijj #bi #j ,m>4 #bh #fej #bej #db #j ,m>4 #bi ,sunday4 #j ,m>4 #cj #ejj #fej #bh #j ,m>4 #ca #gej #bij #cj #j ---------------------------------------- -------- ,apr4 #a #gej #cij #cb #j ,apr4 #b #a1ajj #bhj #dg #j ,apr4 #c #a1ejj #eej #gj #j ,apr4 #d #gjj #chj #d #j ,apr4 #e ,sunday4 #j ,apr4 #f #ddj #aej #d #j ,apr4 #g #fej #bgj #db #j ,apr4 #h #eej #baj #fe #j ,apr4 #i #cij #afj #ie #j ,apr4 #aj #ejj #acj #acj #j ,apr4 #aa #dcj #ade #ajj #j ,apr4 #ab ,sunday4 #j ,apr4 #ac #dij #afj #hj #j ,apr4 #ad #eej #agj #ij #j ,apr4 #ae #dbj #afj #ab #j ,apr4 #af #cfj #acj #ij #j ,apr4 #ba ,scrap$1 #j4ab 94 ( s& remov$4 ,apr4 #bc #adj #adj 444 #j ,apr4 #bd #bjj ,lo/4 #aej #j ,apr4 #be #he #eej #de #j ,apr4 #bf ,sunday4 #j ,apr4 #bg #ie #hej #ej #j ,apr4 #bh #gj #bbj #dh #j ,apr4 #bi #aaj #baj #ie #j ,apr4 #cj #gj #adj #bi #j ---------------------------------------- -------- ,may #a #acj #baj #fe #j ,may #b #adj #adj #ee #j ,may #c ,sunday4 #j ,may #d #he #baj #ge #j ,may #e #acj #aej #dh #j ,may #f #bcj #dcj #ej #j ,may #g #afj #ij #dj #j ,may #h #cge #dbe #g #j ,may #i #a1bji #ahj #f #j ,may #aj ,sunday4 #j ,may #aa #b1hjj #aej #ab #j ,may #ab #b1ijj #bbe #bf #j ,may #ac #a1hjj #dej #ec #j ,may #ad #b1gjj #eej #aj #j ,may #ae #iej #cjj #fe #j ,may #af #hjj #bej #di #j ,may #ag ,sunday4 #j ,may #ah #gjj #a1gjj #hj #j ,may #ai #cge #iej #ec #j ,may #bj #dbe #gjj #df #j ,may #ba #cjj #fjj #f #j ,may #bb #iej #bcj #ag #j ,may #bc #b1djj #cb #bh #j ,may #bd ,sunday4 #j ,may #be #a1ajj #hej #i #j ,may #bf #c1bjj #aej #ag #j ,may #bg #a1dej #age #h #j ,may #bh #a1jjj #acb #g #j ,may #bi #a1ajj #bcj #h #j ,may #cj ,holiday4 #j ,may #ca ,sunday4 #j ---------------------------------------- -------- ,june #a 444 444 444 #j ,june #b 444 444 444 #j ,june #c 444 444 444 #j ,june #d 444 444 444 #j ,june #e 444 444 444 #j ,june #f 444 444 444 #j ,june #g 444 444 444 #j ,june #h 444 444 444 #j ,june #i 444 444 444 #j ,june #aj 444 444 444 #j ,june #aa 444 444 444 #j ,june #ab 444 444 444 #j ,june #ac 444 444 444 #j ,june #ad 444 444 444 #j ,june #ae 444 444 444 #j ,june #af 444 444 444 #j ,june #ag 444 444 444 #j ,june #ah 444 444 444 #j ,june #ai 444 444 444 #j ,june #bj 444 444 444 #j ,june #ba 444 444 444 #j ,june #bb 444 444 444 #j ,june #bc 444 444 444 #j ,june #bf 444 444 444 #j ,june #bg 444 444 444 #j ,june #bh 444 444 444 #j ,june #bi 444 444 444 #j ,june #cj 444 444 444 #j ---------------------------------------- -------- ,july #a #hj #ge #c #j ,july #b #bij #bj #c #j ,july #c #cej #adj #d #j ,july #d ,holiday4 #j ,july #e ,sunday4 #j ,july #f #cjj #eb #d #j ,july #g #aaj #ce #b #j ,july #h #he #aje #b #j ,july #i #he #hj #c #j ,july #aj #cjj #fe #a #j ,july #aa #ade #ie #aa #j ,july #ab ,sunday4 #j ,july #ac #aae #aje #g #j ,july #ad #hjj #cd #a #j ,july #ae #ahj #afe #c #j ,july #af #ajj #ie #b #j ,july #ag #fe #fe #a #j ,july #ah #ch #bjj #bd #j ,july #ai ,sunday4 #j ,july #bj #ie #ca #a #j ,july #ba #gj #ajj #b #j ,july #bb #dej #ac #d #j ,july #bc #fej #cbe #d #j ,july #bd #a1fej #cbe 444 #j ,july #be #b1fjj #ee #b #j ,july #bf ,sunday4 #j ,july #bg #ce1jjj #a1bjj #f #j ,july #bh #a1bjj #fge #f #j ,july #bi #b1jjj #bgj #aa #j ,july #cj #hjj #aij #b #j ,july #ca #a1jjj #caj #f #j ,table #bj--,summ>y ( ,results ( ,exp]im5tal ,filt]s4 ,filt] numb]44444 #a #b #c #d #e #f ,numb] ( runs4444 #c #f #aa #ab #be #bh ---------------------------------------- ---------------------------- ,rate1 million gallons p] acre p] day3 ,maximum4444444 #a4ce #c4ie #g4if #ab4fj #cg4e #aah4i ,m9imum4444444 #j4fb #b4cj #c4gc #e4gg #f4fh #g4a ,av]age4444444 #a4jf #c4bf #f4fi #aj4ag #bf4a #ch4ed ---------------------------------------- ---------------------------- ,l5g? ( run1 9 days3 ,maximum4444444 #bcc4e #aej4e #ge4b #ij4i #dh4ga #ci4hc ,m9imum4444444 #aha4g #db4j #ad4e #aj4a #j4fg #j4fb ,av]age4444444 #bjf4d #aji4f #dh4hi #dj4e #ad4da #ab4fa ---------------------------------------- ---------------------------- ,million gallons filt]$ p] acre p] run3 ,maximum4444444 #bdb4fa #dhd4df #ecd4fg #ifj4gb #a1dfc4ce #a1jbb4bg ,m9imum4444444 #bjb4fj #ace4ff #ic4gi #ib4eg #ai4ec #ec4cb ,av]age4444444 #bah4eh #cjb4hb #cbf4gf #dag4bc #cgd4ad #cfa4ib ---------------------------------------- ---------------------------- ,cubic y>ds ( s& remov$ p] acre at end ( ea* run3 ,maximum4444444 #bfi #bfi #fgb #a1fab #b1dbj #c1cfj ,m9imum4444444 #bfi #acd #aja #acd #acd #aja ,av]age4444444 #bfi #bac #bgb #cib #ehc #fce ---------------------------------------- ---------------------------- ,cubic y>ds ( s& remov$ p] acre p] million gallons filt]$44444444 #a4bc #j4gj #j4hc #j4id #a4ee #a4gb ---------------------------------------- ---------------------------- ,av]age initial loss ( head4444 #j4jg #j4ai #j4ea #j4gh #c4hh #e4ch ---------------------------------------- ---------------------------- ,turbidity1 influ5t3 ,maximum4444444 #abj #abj #abj #abj #ij #ajj ,m9imum4444444 #b #b #b #b #b #b ,av]age4444444 #bj #bj #ba #bb #ah #ai ---------------------------------------- ---------------------------- ,turbidity1 efflu5t3 ,maximum4444444 #aa #ac #ag #ah #cj #cj ,m9imum4444444 #j #j #j #j #j #j ,av]age4444444 #a #a #b #b #d #c ---------------------------------------- ---------------------------- ,p]c5tage r$uction #ie4j #ie4j #ij4e #ij4i #gg4h #hd4c ---------------------------------------- ---------------------------- ,bact]ia1 influ5t3 ,maximum4444444#ahj1jjj #ahj1jjj #ahj1jjj #aaj1jjj #ahj1jjj #cg1ejj ,m9imum4444444 #bb #bj #bb #bj #be #bd ,av]age4444444 #d1hjj #e1ajj #d1ejj #d1bjj #f1ijj #e1ijj ---------------------------------------- ---------------------------- ,bact]ia1 efflu5t3 ,maximum4444444 #d1jjj #a1cjj #c1bjj #e1djj #ab1hjj #b1djj ,m9imum4444444 #b #c #a #a #b #b ,av]age4444444 #afj #he #aaj #abj #aij #ahj ---------------------------------------- ---------------------------- ,p]c5tage1 ,r$uction4444444 #if4g #ih4c #ig4f #ig4c #ig4c #ig4j ---------------------------------------- ---------------------------- ,numb] ( samples exam9$ = bacillus coli 9 influ5t3 #aj c4c44444444 #edi #dgh #dgf #dcf #cbe #ccf #a c4c44444444 #efj #dib #dhf #dde #cce #cdb #j4a c4c444444 #ebe #dei #deb #dac #cah #cag #j4ja c4c44444 #eaa #ddc #dci #dje #cjh #cjd #j4jja c4c4444 #ejj #dcd #dbi #cid #bii #bid ---------------------------------------- ---------------------------- ,numb] ( samples exam9$ = bacillus coli 9 efflu5t3 #aj c4c44444444 #eab #deb #ded #djd #bif #cji #a c4c44444444 #eac #ded #deg #djf #bii #caa #j4a c4c444444 #dhj #dai #dbf #chc #bga #bhf #j4ja c4c44444 #dgh #djf #daj #cfg #bfa #bgf #j4jja c4c4444 #dgh #djf #daj #cfg #bfa #bgf ---------------------------------------- ---------------------------- ,numb] samples positive1 influ5t3 #aj c4c44444444 #bbf #baa #bja #beh #acf #aeb #a c4c44444444 #abg #abc #aaf #ajh #ha #ic #j4a c4c444444 #ee #ei #ed #ea #dc #db #j4ja c4c44444 #bf #cd #cc #cc #bg #be #j4jja c4c4444 #f #f #e #f #c #c ---------------------------------------- ---------------------------- ,numb] samples positive1 efflu5t3 #aj c4c44444444 #ajj #aji #acd #ih #id #ajf #a c4c44444444 #ea #fa #ee #ef #df #ej #j4a c4c444444 #i #ac #af #af #d #ac #j4ja c4c44444 #j #j #j #j #j #j #j4jja c4c4444 #j #j #j #j #j #j ---------------------------------------- ---------------------------- ,p]c5tage ( samples %[+ bacillus coli 9 influ5t3 #aj c4c44444444 #da4b #dd4b #db4b #ei4b #da4i #de4b #a c4c44444444 #bb4g #be4j #bc4i #bd4c #bd4b #bg4b #j4a c4c444444 #aj4e #ab4h #aa4i #ab4c #ac4e #ac4b #j4ja c4c44444 #e4a #g4g #g4e #h4b #h4h #h4b #j4jja c4c4444 #a4b #a4d #a4b #a4e #a4j #a4j ---------------------------------------- ---------------------------- ,p]c5tage ( samples %[+ bacillus coli 9 efflu5t3 #aj c4c44444444 #ai4e #bd4a #bi4e #bd4b #ca4g #cd4c #a c4c44444444 #aj4j #ac4d #ab4j #ac4h #ae4d #af4a #j4a c4c444444 #a4i #c4a #c4h #d4b #a4e #d4e #j4ja c4c44444 #j #j #j #j #j #j #j4jja c4c4444 #j #j #j #j #j #j ---------------------------------------- ---------------------------- ,co/ p] million gallons = s& h&l+44444 #j4dc #j4be #j4bi #j4cc #j4ed #j4fj ---------------------------------------- ---------------------------- ,int]e/ *>ges at #c44444444444 #f4he #b4be #a4ab #j4gc #j4cb #j4bb ---------------------------------------- ---------------------------- ,total444444444 #g4bh #b4ej #a4da #a4jf #j4hf 4#hb ,coli te/s presumptive4 ,,discussion ,all5 ,haz51 ,m4 ,am4 ,soc4 ,c4 ,e4 7by lett]74--,?is pap] conta9s a mo/ int]e/+ & in/ructive record ( ! actual op]ation ( a l>ge filt] plant1 & also a record ( a numb] ( exp]im5ts4 ,! au?or has describ$ "s useful arrangem5ts = improv+ ! effici5cy or r$uc+ ! co/4 ,! utility ( rak+1 z an int]m$iate treatm5t betwe5 scrap+s1 seems to h be5 cle>ly demon/rat$4 ,its practical effect is to all[ a great] quantity ( wat] to be pass$ betwe5 scrap+s1 !reby saturat+--if ! t]m may be us$--! surface lay] ) clay & o!r f9e matt] be=e remov+ x1 in/ead ( tak+ x (f :5 only a ?9 surface lay] ( x has be5 ?us saturat$4 ,! l>ge proportion ( ! total purification t takes place 9 pass+ ?r\gh ?ree res]voirs successively1 hold+ 9 ! aggregate a quantity ( wat] equal to ab\t #g days' use1 is v /rik+4 ,tak+ all ! records1 ! p]c5tage rema9+ aft] pass+ ?r\gh ^! res]voirs1 is z foll[s3 ,s$im5t = ! ye>1 #aiji-aiaj1 ,table #b44444444444444444444ag ,turbidities1 #e-ye> av]age1 ,table #c4444444444444444444444444be ,bact]ia1 #e-ye> av]age1 ,table #d4444444444444444444444444444bd ,bact]ia1 select$ w9t] mon?s ) high numb]s 9 ! raw wat]44444444444444444444444444444444444# bj ,bact]ia1 select$ summ] mon?s ) high numb]s 9 ! raw wat]44444444444444444444444444444444444 #b4e ,!re is consid]able seasonal fluctuation 9 ! results ( settl+ & filt]+1 z is %[n 9 ,table #ba4 ,table #ba--;,av]age ,removal ( ,turbidity & ,bact]ia by ,wa%+ton ,filt]s = ,:ole ,p]iod1 ,arrang$ by ,seasons4 ,w9t]4 ,spr+4 ,summ]4 ,fall4 ,ye>4 ---------------------------------------- -------------------------- ,turbidity1 9 raw #ace #if #add #db #aje p>ts p] settl$ #cc #bh #bg #ae #bf million3 filt]$ #d #c #a #j4e #b ---------------------------------------- -------------------------- ,p]c5tage settl+ #bd #bi #ai #cf #be left f3 filt]+ #ab #aj #d #c #h bo? #c #a #j4c #a #b ---------------------------------------- -------------------------- ,bact]ia p] raw #af1fjj #d1aej #d1ajj #a1ifj #f1gjj cubic settl$ #f1cjj #ihj #afj #bgj #a1idj c5timet]3 filt]$ #adi #bi #ah #bb #ed ---------------------------------------- -------------------------- ,p]c5tage settl+ #ch #bd #d #ad #bi left f3 filt]+ #b4d #c4j #aa4b #h4b #b4h bo? #j4ij #j4gi #j4dd #a4ab #j4ha ,! fluctuation 9 ! effici5cy ( ! plant z a :ole by seasons is great] ) ! turbidity ?an ) ! bact]ia4 ,dur+ ! w9t] ! efflu5t conta9s #c ( ! turbidity ( ! raw wat]1 & 9 summ] only #j4c p] c5t4 ,mo/ ( ?is diff]5ce is repres5t$ by ! increas$ effici5cy ( ! filt]s 9 summ]1 & only a little ( x by ! increas$ effici5cy ( settl+4 ,) bact]ia1 on ! o!r h&1 ! seasonal fluctuation ( ! plant z a :ole is comp>atively small1 b ! settl+ & /orage processes are mu* m effici5t 9 summ] ?an 9 w9t]1 ! filt]s be+ app>5tly less effici5t4 ,! writ] believes t !y are only app>5tly less effici5t1 & n really s1 ! explanation be+ t "s bact]ia always gr[ 9 ! "u-dra9s & l[] p>ts ( ! filt]1 & are wa%$ away by ! efflu5t4 ,! av]age numb] ( bact]ia 9 summ] 9 ! settl$ wat] is #afj p] cu4 cm4 & 9 ! filt]$ wat] #ah4 ,^! are v l[ numb]s4 ,x is ! writ]'s view t ne>ly all ( ^! #ah repres5t "u-dra9 bact]ia1 & practically be> no relation to ^? 9 ! appli$ wat]1 &1 if ?is view is correct1 ! numb] ( bact]ia actually pass+ ?r\gh ! v>i\s processes is at all times less ?an ! figures indicate4 ,9 ! w>m] "p ( ! ye> ! diff]5ce is a wide "o1 & ! hygi5ic effici5cy ( ! process is mu* great] ?an is indicat$ by ! gross numb]s ( bact]ia4 ,! r$uction ( ! typhoid dea? rate has n be5 z great ) ! *ange 9 wat] supply z 0 ! case at ,lawr5ce1 ,albany1 & o!r cities1 app>5tly because ! ,potomac wat] be=e x 0 filt]$ 0 n ! cause ( a l>ge "p ( ! typhoid fev]4 ,! sewage pollution ( ! ,potomac is mu* less ?an t ( ! ,m]rimac & ! ,hudson1 & x is p]haps n surpris+ t ?is relatively small am\nt ( pollution 0 less pot5t 9 caus+ typhoid fev] ?an ! great] pollution ( riv]s dra9+ m d5sely populat$ areas4 ,! me?od ( replac+ ! wa%$ s& hydraulically seems to h work$ bett] ?an c\ld h be5 reasonably anticipat$1 & ! writ] believes t ?is 0 due1 9 "p1 to ! excell5t me?od ( manipulation describ$ 9 ! pap]4 ,x is 8 feel+1 h[ev]1 t "p ( ! success is attributable to ! v l[ uni=mity coeffici5t ( ! s&4 ,9 o!r words1 ! s& gra9s are ne>ly all ( ! same size1 due to ! "* ( ! /ock f :i* ! filt] s& 0 prep>$2 &1 !re=e1 !re is mu* less opportunity = sep>ation ( ! s& accord+ to gra9 sizes ?an !re w\ld be ) ! filt] s& :i* has be5 available 9 mo/ o!r cases4 ,filt] s& ) a uni=mity coeffici5t z l[ z t obta9$ at ,wa%+ton has be5 r>ely available = ! con/ruction ( s& filt]s1 & :ile ! me?od ( hydraulic return %\ld c]ta9ly be consid]$1 x w n be safe to assume t equally favorable results may be obta9$ ) x ) s&s ( high uni=mity coeffici5ts until actual favorable exp]i5ce is obta9$4 ,! writ] believes t 9 calculat+ ! co/ ( ! wat] us$ 9 ! plant itself ! price *os5 by ! au?or1 cov]+ only ! actual op]at+ exp5ses ( pump+ & filt]+1 is too l[4 ,! capacity ( ! :ole ,wa%+ton ,aqu$uct sy/em is r$uc$ by :atev] quantity is us$ 9 ?is way1 &1 9 calculat+ ! co/ ( s& h&l+1 ! value ( ! wat] us$ %\ld be calculat$ on a basis :i* w cov] ! :ole co/ ( ! wat]1 includ+ all capital *>ges1 depreciation1 op]at+ exp5ses1 & all co/s ( e description4 ,on ?is basis ! wat] us$ 9 ! s&-h&l+ op]ations w\ld probably be wor? five or m times ! sum m5tion$ by ! au?or4 ,! co/ ( op]ation ( ! plant has come )9 ! e/imates made 9 advance1 & has c]ta9ly be5 mo/ reasonable4 ,! co/ ( filt] op]ations has av]ag$ only ab\t #ej c5ts p] million gallons1 & is s l[ t x is obvi\s t ! sav+s :i* may be made by introduc+ fur!r labor-sav+ appliances w\ld be relatively small4 ,x w be rememb]$ t t5 or fifte5 ye>s ago ! co/ ( op]at+ su* filt]s "u ,am]ican conditions 0 commonly f #b to #e p] million gallons4 ,! exp]im5ts repres5t$ by ,tables #ag to #ai1 inclusive1 s]ve to %[ t prelim9>y filtration1 or multiple filtration1 or any sy/em ( me*anical sep>ation is incapable ( entirely remov+ ! f9] clay p>ticles :i* cause ! residual turbidity 9 ! efflu5t4 ,!y also %[ t ?is turbidity may be easily & c]ta9ly remov$ by ! application ( coagulant to ! raw wat] dur+ ! occasional p]iods :5 its "* is su* z to require x4 ,^! g5]al propositions 7 und]/ood by ^? responsible = ! orig9al design ( ! plant1 z is %[n by ! au?or's quotations4 ,^! exp]im5ts1 h[ev]1 7 necess>y 9 ord] to demon/rate & br+ home ! conditions to ^? :o ?\ght diff]5tly1 & :o believ$ t full purification c\ld be obta9$ by filtration alone1 or by d\ble filtration1 )\t rec\rse to ! occasional use ( coagulant4 ,! exp]im5ts briefly summ>iz$ 9 ,table #bj are ( ! greate/ int]e/ & importance4 ,six small filt]s1 o!rwise alike & l ! l>ge filt]s1 all receiv$ ! same raw wat] & 7 op]at$ at diff]5t rates to det]m9e ! effect ( rate on effici5cy4 ,t ! exp]im5tal results f ! filt] op]at+ at ! same rate z ! l>ge filt]s 7 on ! :ole some:at inf]ior to ^? f ! l>ge filt]s = approximately ! same p]iod1 may be attribut$ to ! fact t ! exp]im5tal filt] 0 new :ile ! l>ge filt]s _h be5 9 s]vice = "s "t & _h !reby ga9$ 9 effici5cy4 ,! greate/ diff]5ce 0 9 ! coli results 9 ,table #bj1 :]e x is %[n t #bd ( ! #aj-;cu4 cm4 efflu5t samples f ! exp]im5tal filt] conta9$ coli1 9 comp>ison ) only f #a to #c ( su* samples f ! ma9 filt]s4 ,! results f ! exp]im5tal filt] op]at+ at a rate ( #a1jjj1jjj gal4 p] acre daily may fairly be exclud$1 z ! efflu5t probably conta9$ m "u-dra9 bact]ia 9 proportion ?an filt]s op]at$ at high] rates4 ,! numb] ( bact]ia 9 ! filt] op]at+ at a #c1jjj1jjj-;gal4 rate 7 #a4g ( ^? 9 ! appli$ wat]2 = ! filt] op]at+ twice z fa/1 ! p]c5tage 0 #b4d2 &1 = ! "o op]at+ m ?an t5 times z fa/1 0 only #c4j2 ?us indicat+ a surpris+ly small increase 9 ! numb] ( bact]ia ) increase 9 rate4 ,fur!r & m detail$ /udy by ! writ] ( ! unpubli%$ individual results1 briefly summ>iz$ 9 ,table #bj1 confirms ! sub/antial accuracy ( ! comp>ison bas$ on ! av]age figures z /at$ 9 t table4 ,x mu/ be kept 9 m9d1 9 consid]+ ^! results1 t ! numb] ( bact]ia 9 ea* case is made up ( two p>ts1 namely1 ^? com+ ?r\gh ! filt]--:i* numb] is presumably great] z ! rate is great]--&1 second1 ^? com+ f h>mless gr[?s 9 ! "u-dra9s & l[] p>ts ( ! filt]--! numb]s ( :i* p] cubic c5timet] are presumably less z ! rate is great]--& ^! two p>ts1 v>y+ 9 opposite directions1 may balance ea* o!r1 z !y seem to d 9 ?is case1 ?r\gh a consid]able range4 ,x may ?us be t ! numb] ( bact]ia really pass+ ! filt] v>ies mu* m ) ! rate ?an is indicat$ by ! gross results4 ,x is also ( int]e/ to note t ! s& filt] 7call$ a prelim9>y filt]7 9 ,table #ah1 fill$ ) ! same k9d ( s&1 :5 op]at$ at an av]age rate ( #ej1jjj1jjj gal4 p] acre daily = a ye>1 all[$ #ah ( ! appli$ bact]ia to pass1 9 comp>ison ) #c f\nd 9 ,filt] ,no4 #f ( ,table #bj1 op]at$ at an av]age rate ( #ch1jjj1jjj gal4 p] acre daily4 ,!re 0 "o po9t ( diff]5ce 9 ! manipulation3 ! prelim9>y filt] 0 wa%$ by a rev]s$ curr5t ( wat]1 z me*anical filt]s are wa%$1 :ile ,filt] ,no4 #f 0 clean$ by scrap+ (f ! surface lay]1 z is usual ) s& filt]s4 ,:e!r ! great diff]5ce 9 bact]ial results ) a relatively small diff]5ce 9 rate is to be attribut$ to ?is diff]5ce 9 manipulation ! writ] w n und]take to /ate4 ,if ! exp]im5tal results ( ,table #bj indicate correctly ! conditions :i* obta9 9 filt]+ ,potomac wat]1 !n increas+ ! rate ( filtration s z to d\ble x1 or m ?an d\ble x1 w\ld make b little diff]5ce 9 ! quality ( ! efflu5t z measur$ by ! usual bact]ial me?ods4 ,if ! increase 9 rate 7 accompani$ by ! prelim9>y filtration ( ! wat]1 !n1 presumably1 !re w\ld be little *ange 9 ! quality ( ! efflu5t1 & ! ma9t5ance ( excell5t results might be incorrectly attribut$ to ! influ5ce ( ! prelim9>y filt]4 ,x w\ld also seem t ! app>atus :i* is sometimes us$ = det]m9+ & controll+ ! rate ) m ?an ! ord9>y degree ( precision is h>dly ju/ifi$ by su* exp]im5tal results z ^? pres5t$ by ! au?or4 ,9 contra/ to ^! results may be m5tion$ ^? obta9$ by ,mr4 ,h4 ,w4 ,cl>k1#a = exp]im5tal filt]s op]at$ ) ,m]rimac ,riv] wat]1 at rates rang+ f #c1jjj1jjj to #af1jjj1jjj gal4 p] acre daily4 ,! results are ! av]age ( ne>ly two ye>s ( exp]im5tal "w1 ! p]iod hav+ be5 ne>ly co9cid5t ) t cov]$ by ! au?or's exp]im5ts1 & ( _m hundr$s ( bact]ial analyses ( ea* efflu5t1 & =m1 ) ! au?or's exp]im5ts1 ! mo/ ?or\gh-go+ /udies ( ! effect ( rate on effici5cy t h come to ! writ]'s att5tion4 ,mr4 ,cl>k's results are giv5 9 ,table #bb4 ,table #bb4 ,b4 ,coli 9 #a cu4cm4 ,effective ,rate ,bact]ia p] 7p]c5tage size ( 9 gallons cubic ,bact]ial ( positive s&4 ,filt] ,no4 acre daily4c5timet] 9effici5cy4 te/s74 ---------------------------------------- ------------------------------ #j4bh ,a #c1jjj1jjj #dh #ii4a #e4j #j4be ,b #e1jjj1jjj #he #ih4d #bd4j #j4bb ,c #g1ejj1jjj #aje #ih4a #be4j #j4bb ,d #aj1jjj1jjj #aaj #ih4j #be4j #j4bb ,e #af1jjj1jjj #bhj #ie4j #ch4j ,x w be se5 t ! numb] ( bact]ia pass+ increases rapidly ) ! rate1 & :e!r ! total numb] ( bact]ia is consid]$ or ! ,b4 coli results1 ! numb] pass+ is approximately 9 proportion to ! rate4 ,9 o!r words1 d\bl+ ! rate sub/antially d\bles ! numb] ( bact]ia 9 ! efflu5t4 ,?is is entirely 9 h>mony ) all ! ,lawr5ce exp]im5tal results ext5d+ ov] a p]iod ( #bj ye>s4 ,!re h be5 occasional app>5t exceptions1 b1 on ! :ole1 exp]i5ce ) ,m]rimac ,riv] wat] has uni=mly be5 t m bact]ia pass z ! rates are high]4 ,! !ory sometimes advanc$1 t ! effici5cy ( filtration is controll$ to a c]ta9 ext5t by gelat9\s films1 & t1 z f> z ?us controll$1 is less dep5d5t on rate1 w\ld n seem to be borne out by ^! results4 ,! ,m]rimac ,riv] wat]1 c>ry+ l>ge am\nts ( organic matt]1 w\ld c]ta9ly seem bett] adapt$ to ! =mation ( su* films ?an ! clay-be>+ ,potomac wat]1 comp>atively free f organic matt]2 b x is ! ,potomac wat] :i* seems to %[ ! lea/ influ5ce ( rate on effici5cy4 ,footnote #a3 ,j\rnal1 ,new ,engl& ,wat]-,works ,association1 ,vol4 #bd1 p4 #ehi4 ,! exp]im5ts %[ t turbidity passes m freely at ! high] rates ) ! ,potomac wat]1 z has also be5 f\nd to be ! case ) o!r clay-be>+ wat]s4 ,9 ! la/ l9es ( ,table #bj are giv5 co/ p] million gallons = filt]+ at v>i\s rates4 ,!re is no discussion ( ^! figures1 & z !y diff] consid]ably f ^? :i* ! writ] has be5 accu/om$ to use1 ! calculation 9 ,table #bc1 made ?ree ye>s ago = a p>ticul> case1 may be ( int]e/4 ,table #bc--,relative ,co/ ( ,filt]+ at ,diff]5t ,rates4 ,nom9al rate1 9 millions ( gallons p] acre daily3 ---------------------------------------- -------- #c #e #aj #bj ---------------------------------------- ------------------------------ ,p]c5tage :i* av]age yield is ( nom9al rate4444444444 #he #hj #ge #fe ---------------------------------------- ------------------------------ ,av]age output p] acre1 9 millions ( gallons p] day4444444 #b4ee #d4jj #g4e #ac4j ---------------------------------------- ------------------------------ ,co/ ( t "p ( filt]s p] acre dep5d5t on rate44444 #ab1jjj #bj1jjj #dj1jjj #hj1jjj ---------------------------------------- ------------------------------ ,co/ ( t "p ( filt]s p] acre n dep5d5t on rate44444 #ej1jjj #ej1jjj #ej1jjj #ej1jjj ---------------------------------------- ------------------------------ ,total co/ ( filt]s p] acre44444444444444 #fj1jjj #gj1jjj #ij1jjj #acj1jjj ---------------------------------------- ------------------------------ ,co/ p] million gallons ( capacity444 #bj1fjj #ad1jjj #i1jjj #f1ejj ---------------------------------------- ------------------------------ ,co/ p] million gallons ( av]age daily output4444444444 #bd1djj #ag1ejj #ab1jjj #aj1jjj ---------------------------------------- ------------------------------ ,capital *>ges & depreciation at #f on co/ p] million gallons444444444444444 #d4jj #b4hg #a4ig #a4fd ---------------------------------------- ------------------------------ ,op]at+ exp5ses1 ! same at all rates44444444444444444 #a4jj #a4jj #a4jj #a4jj ---------------------------------------- ------------------------------ ,total co/ ( filt]+1 exclud+ pump+1 /orage1 & all auxili>ies4444444 #e4jj #c4hg #b4ig #b4fd ---------------------------------------- ------------------------------ ,relative co/444444444 #a4bi #a4jj #j4gg #j4fh ,:5 ! co/s ( pump+1 pure-wat] res]voirs usually necess>y1 etc41 are tak5 into acc\nt 7:i* add equally to ! co/ at all rates71 ! co/ ( filt]+ w v>y less ) ! rate ?an is indicat$4 ,! effect ( rate on co/1 z calculat$ 9 ,table #bc1 & also ! p]c5tages ( ! bact]ia ( ! raw wat] f\nd 9 ! efflu5ts by ! au?or & by ,mr4 ,cl>k1 are %[n on ,figure #aj4 ,consid]+ all ^! results toge!r1 & also all ! o!r evid5ce kn[n to ! writ] be>+ on ?is po9t1 x seems cle> t filt]s are n z s5sitive to *anges 9 rate1 )9 reasonable limits1 z has be5 frequ5tly assum$2 b1 on ! o!r h&1 !re is usually a sub/antial increase 9 ! p]c5tage ( bact]ia pass+ ?r\gh a filt] ) increas$ rate4 ,filt]s furni% relative1 n absolute1 protection aga9/ infecti\s matt] 9 ! raw wat]4 ,! high] ! bact]ial effici5cy1 ! m complete is ?is relative protection4 ,! co/ ( filt]+ does n decrease 9 inv]se ratio to ! rate1 b at a mu* sl[] rate4 ,?is is especially true ) rates ( m ?an #e1jjj1jjj or #f1jjj1jjj gal4 p] acre daily4 ,9 g5]al1 a rate ( filtration may rationally be select$ at :i* ! value ( ! possible dang] result+ f an increase 9 rate is equal to ! sav+ t may be made 9 co/ by its use4 ,?is po9t mu/ be a matt] ( individual judgm5t4 ,! t5d5cy ( ! la/ few ye>s has be5 to use high] rates1 or1 9 o!r words1 to *eap5 ! process & to tol]ate a l>g] proportion ( bact]ia 9 ! efflu5t4 ,! use ( auxili>y processes has be5 favorable to ?is1 especially ! use ( *loride ( lime1 9 connection ) ei!r ! raw wat] or ! efflu5t4 ,illu/ration3 ,figure #aj--,rate ,million ,gallons ,p] ,acre ,daily4 ,by ! judici\s use ( ?is sub/ance1 effici5cy may be ma9ta9$ :ile us+ high] rates ?an w\ld o!rwise h be5 desirable4 ,! writ] believes t !re w be _m cases :]e ! add$ risk ( us+ too high a rate is n wor? ! relatively small sav+ 9 co/ t accompanies x4 ,george ,a4 ,johnson1 ,assoc4 ,m4 ,am4 ,soc4 ,c4 ,e4--,?is pap] conta9s in=mation ( an exce$+ly int]e/+ nature4 ,!re is comp>atively little difficulty 9 obta9+ accurate figures on ! co/ ( con/ruction ( wat] purification works1 b1 ) co/s ( op]ation ( su* works1 x is diff]5t4 ,! data available 9 publi%$ reports & pap]s are usually m or less fragm5t>y1 & unexpla9$ local conditions ) ref]5ce to ! "* ( ! raw wat]1 ! co/ ( labor & supplies1 & me?ods ( apportion+ ^! co/s1 introduce v>iables s wide z frequ5tly to r5d] ! publi%$ figures almo/ useless = purposes ( comp>ison4 ,mr4 ,h>dy's pap] is notewor?y 9 t x pres5ts c]ta9 relatively new features ( sl[ s& filt] op]ation :i* h be5 only lightly t\*$ on 9 wat] purification lit]ature up to ! pres5t "t4 ,^! ref] p>ticul>ly to means :]eby a filt] may be cont9u$ 9 s]vice )\t remov+ a portion ( ! surface lay] ( ! filt] surface itself :5 ! available head has become exhau/$1 & to me?ods :]eby wa%$ s& may be exp$iti\sly & m economically re/or$ to ! filt] ?an has be5 ! case hi!rto4 ,s& h&l+ is ! mo/ important item ( exp5se 9 ! op]ation ( a sl[ s& filt]4 ,q rec5tly a *>ge ( #a4ej p] cu4 yd4 = s& scrap+1 transportation to s& wa%]s1 wa%+1 & re/or+ to ! filt]1 0 n consid]$ exorbitant1 b ! improv$ me?ods develop$ dur+ rec5t ye>s at ,wa%+ton1 ,philadelphia1 ,albany1 & m rec5tly at ,pittsburg 7at all ( :i* places hydraulic ejection plays an important "p71 h %[n ! feasibility ( r$uc+ ?is figure by ne>ly1 if n q1 two-?irds4 ,! practice obs]v$ at ,wa%+ton ( rak+ ov] ! surface ( ! s& lay] :5 ! available head becomes exhau/$1 9 ord] to avoid ! co/ & loss ( "t necessitat$ by %utt+ d[n ! filt] & scrap+ (f ! surface lay]1 is unque/ionably "o ( ! mo/ /rik+ advances 9 sl[ s& filt] op]ation 9 rec5t ye>s4 ,9 rapid s& filt] op]ation1 to prolong ! p]iod ( s]vice betwe5 wa%+s1 agitation ( ! filt] surface has be5 us$ to advantage = _m ye>s4 ,! full value ( surface rak+ may n be g5]ally appreciat$1 b ! results :i* h foll[$ a trial ( ?is proc$ure at ,wa%+ton1 ,philadelphia1 & ,pittsburg h %[n t ! output ( filt]$ wat] betwe5 scrap+s may be d\bl$ or trebl$ !reby1 ) no injury to ! filt] itself or to ! quality ( ! filt]$ wat]4 ,! co/ ( rak+ ov] ! surface ( a #a-;acre sl[ s& filt] unit is less ?an #aj at all ! above-m5tion$ places1 :i* fact 9 itself %[s ! great sav+ 9 money & "t effect$ by p]iodically sub/itut+ surface rak+ = scrap+4 ,"u ord9>y conditions x has be5 f\nd t a filt] c be rak$ to advantage at lea/ twice betwe5 scrap+s4 ,9 ! case ( filt]s ?us rak$1 a deep] p5etration ( susp5d$ matt] into ! s& lay] is inevitable1 b at ,pittsburg1 z at ,wa%+ton1 su* p5etration does n ext5d m ?an ab\t #b 94 bel[ ! filt] surface4 ,:5 ! filt] is f9ally scrap$1 a deep] lay] is remov$1 ( c\rse1 b x is cle>ly m economical to remove a deep lay] at "o op]ation ?an to remove sep>ately sev]al ?9n] lay]s ( an equal total ?ickness4 ,! lo/-"t elem5t is an important "o1 & at ,wa%+ton ?is 0 ! ma9 reason = try+ surface rak+4 ,x became necess>y to increase ! output ( ! filt]s1 & ! ord9>y scrap+ consum$ s mu* "t t ! s&-h&l+ =ce 0 increas$1 work+ day & night4 ,! rak+ exp$i5t introduc$ at ?is "t ov]came ?is1 & ,mr4 ,h>dy /ates t x is /ill foll[$ :5 ! "w is at all press+4 ,! speak] has f\nd at ,pittsburg1 z ,mr4 ,h>dy has f\nd at ,wa%+ton1 t rak+ is ne>ly if n q z effective z scrap+ 9 re/or+ ! filt] capacity4 ,elev5 ye>s ago ! speak] 0 connect$ ) ! prelim9>y inve/igations into ! be/ me?ods ( purify+ ! ,potomac ,riv] wat] = ,wa%+ton4 ,x !n appe>$ t :ile = ! great] "p ( ! "t dur+ an av]age ye> ! ,potomac ,riv] c\ld be class$ among ! cle> wat]s ( ! ,ea/1 !re 7 p]iods :5 excessive turbidity made x necess>y to consid] c>efully me?ods ( prep>atory treatm5t be=e ?is wat] c\ld be filt]$ effectively & economically4 ,z ,mr4 ,h>dy has said1 consid]able prejudice exi/$ aga9/ ! use ( a coagulat+ *emical1 & ! exp$i5t 0 !re=e adopt$ ( giv+ ! wat] a long p]iod ( s$im5tation 9 ord] to remove en\gh ( ! susp5d$ matt] to all[ ! cl>ifi$ wat] to be treat$ on sl[ s& filt]s4 ,! exp]t commission1 consi/+ ( ,messrs4 ,h]+1 ,full]1 & ,haz51 recomm5d$ ! occasional use ( a coagulat+ *emical1 b ?is recomm5dation 0 n c>ri$ out4 ,! ,potomac ,riv] is some:at peculi>1 9 t ! turbidity ( its wat]s1 z %[n by ! results pres5t$ 9 ,mr4 ,h>dy's pap]1 ranges f #c1jjj to practically no?+4 ,! bact]ial cont5t also v>ies widely1 & ,mr4 ,h>dy's tables %[ ?is v>iation to be f #gf1jjj to #cbe p] cu4 cm4 ,su* a wat] z ?is requires p>ticul>ly c>eful prep>atory treatm5t4 ,! ,dalec>lia ,res]voir has a capacity ( some?+ l #b days' /orage1 ! ,georget[n ,res]voir ! same1 & ! ,mc,millan ,p>k ,res]voir ne>ly #c days1 mak+ a total s$im5tation ( m ?an #g days4 ,)\t ! use ( a coagulant1 x is significant t dur+ a p]iod ( five ye>s1 ev5 ) #g days' s$im5tation1 ! av]age maximum turbidity ( ! wat] deliv]$ to ! filt]s 0 #ajf p>ts p] million1 & ! maximum av]age turbidity 9 "o mon? 0 #bej p>ts p] million4 ,! wat] filtration eng9e] c readily und]/& t wat]s z turbid z ?is _c be treat$ economically & effici5tly 9 sl[ s& filt]s4 ,x w\ld appe> t coagulat+ works might advantage\sly h be5 in/all$ at ! entrance to ! ,dalec>lia ,res]voir4 ,if ?is _h be5 done1 & coagulant _h be5 add$ to ! wat] at times :5 x 0 excessively turbid1 a consid]ably %ort] p]iod ( subsequ5t s$im5tation ?an n[ exi/s w\ld 9 all probability h r5d]$ ! wat] at all times am5able to effici5t & economical sl[ s& filt] treatm5t4 ,! prejudice 9 ,wa%+ton aga9/ ! use ( coagulants has also manife/$ itself 9 o!r localities1 b ! results :i* h be5 obta9$ dur+ ! pa/ tw5ty ye>s f rapid s& filt]s & f sl[ s& filt]s1 treat+ wat]s previ\sly coagulat$ ) salts ( iron or alum9a1 h %[n h[ ?or\ghly unreasonable 7 ^! objections4 ,9 ?is connection x is int]e/+ to note t !re are 9 ! ,unit$ ,/ates m ?an #cej rapid s& filt] plants1 & t ne>ly #ab ( ! urban population ( ,cont95tal ,unit$ ,/ates is be+ suppli$ ) wat] filt]$ ?r\gh rapid s& filt]s1 9 connection ) all ( :i* a coagulat+ *emical is us$ 9 ! prep>atory treatm5t4 ,table #bd--,typhoid ,fev] ,dea? ,rates 9 ,cities ( ! ,unit$ ,/ates ) ,populations 9 #aiaj ( #ajj1jjj1 or ,m4 ,/ati/ics ga!r$ by correspond5ce & f ,reports ( ! ,bureau ( ! ,c5sus1 ,dep>tm5t ( ,comm]ce & ,labor1 ,mortality ,/ati/ics4 ,note4--,/ati/ics f ,birm+ham1 ,ala41 ,dayton1 ,ohio1 ,fall ,riv]1 ,mass41 ,l\isville1 ,ky41 ,memphis1 ,t5n41 ,oakl&1 ,cal41 & ,provid5ce1 ,r4 ,i41 are n includ$1 z !y are incomplete4 ,columns3 ,a - ,av]age = six ye>s1 #aijj-je1 inclusive4 ,b - ,av]age = five ye>s1 #aijf-aj1 inclusive4 ,c - ,av]age = #aa ye>s1 #aijj-aa1 inclusive4 ,typhoid ,fev] ,dea? ,rate ,city4 p] #ajj1jjj ,population4 ---------------------------------------- #aijf #aijg #aijh #aiji #aiaj ,a ,b ,c ---------------------------------------- -------------------- ,albany1 ,n4 ,y4 #bj #bj #aa #ai #ae #be #ag #ba ,atlanta1 ,ga4 #ej #fd #dg #dd #dc #fe #ej #eh ,baltimore1 ,md4 #cd #da #ca #bc #da #cf #cd #ce ,bo/on1 ,mass4 #bb #aj #bf #ad #aa #bc #af #bj ,bridgeport1 ,conn4 #aj #ac #ac #ac #i #ae #ab #ad ,buffalo1 ,n4 ,y4 #bd #bi #ba #bc #bj #bi #bc #bf ,cambridge1 ,mass4 #ah #aj #aj #i #ab #ah #ab #ae ,*icago1 ,ill4 #ah #ah #ae #ab #ad #bg #af #bb ,c9c9nati1 ,ohio #ga #df #ai #ac #f #ed #ca #dd ,clevel&1 ,ohio #bj #ai #ac #ab #ai #ea #ag #cf ,columbus1 ,ohio #de #ch #aaj #ag #ac #fa #de #ed ,d5v]1 ,colo4 #fh #fg #eh #bd #cj #cg #di #db ,detroit1 ,mi*4 #bb #bh #bb #ai #af #ag #bb #ai ,gr& ,rapids1 ,mi*4 #ci #cj #cj #ag #bg #cd #bh #ca ,indianapolis1 ,ind4 #ci #bi #bf #bb #ca #gf #cj #ee ,j]sey ,city1 ,n4 ,j4 #bj #ad #aj #h #aj #ai #ab #af ,kansas ,city1 ,mo4 #ch #dj #ce #bc #ch #dh #ce #db ,los ,angeles1 ,cal4 #ah #bc #ai #ah #ab #ce #ah #bg ,l[ell1 ,mass4 #g #i #bd #aa #ba #ai #ad #ag ,milwaukee1 ,wis4 #ca #bf #ag #ba #de #ai #bh #bc ,m9neapolis1 ,m9n4 #cc #bf #ah #bj #eh #ch #bi #cd ,na%ville1 ,t5n4 #ff #he #fb #ec #dh #ed #eh #ef ,new>k1 ,n4 ,j4 #ah #bd #ab #aa #ac #ag #af #ag ,new ,hav51 ,conn4 #ed #cj #cd #bj #ag #dd #ca #ch ,new ,york1 ,n4 ,y4 #ae #ag #ab #ab #ab #ai #ad #ag ,new ,orleans1 ,la4 #cj #ef #ca #be #bh #dj #cd #cg ,omaha1 ,nebr4 #bh #bd #bb #ca #ge #bj #cf #bg ,pat]son1 ,n4 ,j4 #d #aa #aj #e #g #be #g #ag ,philadelphia1 ,pa4 #gd #fj #cf #bb #ag #dg #db #de ,pittsburg1 ,pa4 #ada #ace #ecaacaaba #acb #ga #ajd ,ri*mond1 ,va4 #dd #da #ej #bd #bb #ff #cf #ec ,ro*e/]1 ,n4 ,y4 #ag #af #ab #i #ac #ae #ac #ad ,/ ,l\is1 ,mo4 #ah #af #ae #ae #ad #cc #af #be ,/ ,paul1 ,m9n4 #ba #ag #ab #bj #bj #ad #ah #af ,san ,francisco1 ,cal4 444 #eg #bg #ag #ae #bj #bi #bd ,scranton1 ,pa4 #aa #gf #aa #aa #ad #ah #ce #bf ,syracuse1 ,n4 ,y4 #aj #af #ae #ab #cj #ad #ag #ae ,tol$o1 ,ohio #de #cf #dj #ca #cb #cf #cg #cf ,worce/]1 ,mass4 #ab #ad #aj #h #af #ag #ab #ae ,wa%+ton1 ,d4 ,c4 #eb #cf #ci #cc #bc #ei #cg #di ,footnote #a3 ,filt]$ wat] section4 ,allegh5y ,di/rict n includ$4 ,att5tion has repeat$ly be5 call$ to ! fact t ! relatively high typhoid dea? rate 9 ,wa%+ton1 s9ce ! filt] plant 0 in/all$1 0 a possible indication t ! filt]s 7 ineffici5t4 ,x is true t !re has n be5 ! m>k$ r$uction 9 ! typhoid dea? rate 9 ,wa%+ton1 foll[+ ! in/allation ( ! wat] filtration works1 t has be5 obs]v$ 9 o!r cities 9 ,am]ica4 ,= ! six ye>s prior to ! date on :i* filt]$ wat] 0 suppli$ to ! citiz5s ( ,wa%+ton1 ! av]age typhoid fev] dea? rate 0 #ei p] #ajj1jjj population1 z aga9/ #cg p] #ajj1jjj = ! five ye>s foll[+1 a r$uction ( #cg p] c5t4 ,at ,albany1 ,n4 ,y41 :]e ! fir/ mod]n sl[ s& filt] 0 built 9 #ahii1 ! typhoid dea? rate has be5 r$uc$ by #ge p] c5t4 ,at ,c9c9nati1 ,ohio1 ! av]age dea? rate f typhoid rang$ ar\nd #ej p] #ajj1jjj = ye>s1 b s9ce ! in/allation ( ! filtration plant x has be5 r$uc$ to a po9t :i* places t city1 ) respect to fre$om f typhoid fev]1 at ! head ( all ! l>ge cities 9 ,am]ica2 9 #aiaj ! dea? rate f typhoid 9 ,c9c9nati 0 #f p] #ajj1jjj4 ,simil>ly1 at ,columbus1 ,ohio1 :]e ! typhoid dea? rate be=e ! in/allation ( ! filtration plant 9 #aijf 0 ev5 high] ?an at ,c9c9nati1 x 0 r$uc$ to less ?an #ac p] #ajj1jjj 9 #aiaj1 :]eas1 = ! previ\s five ye>s1 x 0 #fa p] #ajj1jjj4 ,philadelphia1 be=e ! in/allation ( ! filtration works1 _h a typhoid dea? rate ( #fj or m p] #ajj1jjj1 & 9 #aiaj ! dea? rate f ?is disease 0 #ag4 ,pittsburg1 at lea/ t "p ( x n[ suppli$ ) filt]$ wat]1 = ye>s _h a typhoid dea? rate ( m ?an #acj p] #ajj1jjj1 b ! pres5t rate is ab\t #ab p] #ajj1jjj4 ,table #be--;,av]age ,mon?ly ,results = ! ,p]iod1 #aije-aiaj4 ,columns3 ,a - ,p]iod ( s$im5tation 9 days4 ,b - ,turbidity 9 p>ts p] million4 ,c - ,bact]ia p] cubic c5timet]4 ,p]c5tage ,remov$ ,res]voirs4 ,a ,b ,c -------------------- ,turbidity ,bact]ia ---------------------------------------- --------- ,riv] 444 #ajf #f1djj 444 444 ,dalec>lia #b4b #ej #e1jjj #ec #bb ,georget[n #b4b #ch #c1djj #bd #cb ,mc,millan #b4h #bf #b1jjj #ca #da ---------------------------------------- --------- ,totals & av]ages #g4b 444 444 #ge #fi ,:ile x may p]haps seem unreasonable to s+le out ,wa%+ton z a p>ticul> suff]] 9 ?is respect1 x is highly probable t a l>ge %>e ( ! typhoid is /ill caus$ by second>y infection1 flies1 impure milk1 & private & public wells4 ,! speak] rememb]s di/9ctly t t5 ye>s ago1 :5 he made an inve/igation into ! purity ( ! wat] ( ab\t #ajj public wells 9 t city1 a l>ge numb] ( !m %[$ unmi/akable evid5ce ( be+ pollut$ ) sewagic matt]4 ,conclusive evid5ce w\ld be secur$ to dispel any d\bt z to ! sanit>y quality ( ! filt]$ product if hypo*lorite ( lime 7 add$ to ! filt]$ wat] ?r\gh\t "o ye> or ?r\gh\t ! typhoid mon?s4 ,x seems /range to ! speak]1 t = ?is1 if = no o!r reason1 ?is safe & non-injuri\s g]micide has n z yet be5 us$ at ,wa%+ton1 9 view ( ! fact t at ! pres5t "t x is be+ us$ cont9u\sly or int]mitt5tly 9 ! treatm5t ( ! wat] supplies ( scores ( ! mo/ important cities ( ?is c\ntry1 among :i* may be m5tion$ ,new ,york1 ,philadelphia1 ,c9c9nati1 ,pittsburg1 ,/4 ,l\is1 & ,m9neapolis4 ,morris ,kn[les1 ,m4 ,am4 ,soc4 ,c4 ,e4 7by lett]74--,?is description ( ! op]ation ( ! ,wa%+ton ,filtration ,works is timely & ( great int]e/4 ,x is t5 ye>s s9ce ! writ]1 9 collaboration ) ,*>les ,gilman ,hyde1 ,m4 ,am4 ,soc4 ,c4 ,e41 pres5t$ a simil> record = ! ,lawr5ce1 ,mass41 filt]4 ,t pap] 0 ! fir/ complete1 detail$1 & cont9u\s hi/ory ( ! actions & results obta9$ = a long p]iod ( "t ) su* a purification works4#a ,s9ce !n1 ! art ( filtration has advanc$ 9 _m ways1 p>ticul>ly 9 reg>d to ! me?ods ( clean+ sl[ s& filt]s & 9 ! accompany+ processes4 ,x is well1 !re=e1 aga9 to take acc\nt ( /ock & see really :at progress has be5 made4 ,!re=e1 ,mr4 ,h>dy's pap]1 giv+ a description ( ! op]ations ( a sy/em ?\ghtfully design$1 aft] long consid]ation ( ! problem1 & ( op]ations c>ri$ on "u effici5t & economical adm9i/ration1 ) ?or\gh record ( all details1 %\ld furni% a gr\ndwork = ! c>eful consid]ation ( ! "q /at$ above4 ,! writ]1 us+ z a text "s ( ! ideas giv5 9 ! pap]1 b m p>ticul>ly "s ( ^? becom+ preval5t else:]e1 desires to discuss me?ods & co/s ( op]ation1 especially 9 relation to s& h&l+2 & to (f] sugge/ions look+ t[>d great] effici5cy1 z well z economy1 9 c>ry+ out ! /&>d & well-tri$ me?ods4 ,!ory ( ,sl[ ,s& ,filtration4--,fir/1 :at is ! process ( sl[ s& filtration8 ,! answ] to ?is "q involves _m factors1 "s ( :i* are ev5 yet b imp]fectly und]/ood4 ,9 ! e>ly hi/ory ( filtration1 at ! "t ( ! con/ruction ( ! ,london filt]s1 only ! /ra9+ capacity ( ! s& b$1 to remove gross p>ticles1 0 kn[n4 ,lat]1 :5 ! organic cont5ts ( wat] _h become bett] und]/ood1 ! *emical or oxidiz+ p[]s ( ! process 7 recogniz$ z p]=m+ an important "p4 ,f9ally1 co-exi/5t ) ! discov]y ( ! s-call$ g]m !ory ( disease1 a /udy ( ! bact]ial action ( filt]s result$ 9 ! recognition ( its importance4 ,x is n[ univ]sally ?\ght t ea* ( ^! factors p]=ms its useful function2 t ! size ( ! s&1 ! am\nt ( organic matt] rema9+ on ! surface ( ! b$1 ! turbidity ( ! appli$ wat]1 & ! bact]ial cont5t ( ! influ5t1 are "s ( ! ?+s on :i* dep5ds ! det]m9ation ( ! relative importance ( ea*4 ,footnote #a3 ,transactions1 ,am4 ,soc4 ,c4 ,e41 ,vol4 ,,xlvi1 p4 #beh4 ,eng9e]s h be5 taught to believe1 by ! ,g]man s*ool ( ?\ght1 t ! film ( organic matt] on ! surface ( ! s& plays a v important role 9 filtration4 ,?is ,s*mutzdecke1 z x is call$1 has be5 consid]$ s preci\s t /ress has be5 plac$ on treat+ x ) great c>e4 ,x 0 n to be :olly remov$ at ! "t ( clean+1 & x 0 n to be walk$ on1 or ind5t$1 or 9 any o!r way consolidat$ or de/roy$4 ,9 fact1 9 "s cases1 ! wa/+ ( ! fir/ wat] aft] clean+ has be5 advocat$1 = ! reason t n a suffici5t am\nt ( ?is organic film w\ld be left on top ( ! s& to beg9 ! filtration process prop]ly imm$iately aft] ! clean+4 ,9 late ye>s1 h[ev]1 !re has be5 a t5d5cy to dep>t f ?is fundam5tal doctr9e ( sl[ s& filtration4 ,v>i\s new processes = clean+ ! s& surface h be5 advocat$2 "s ( ^! p>tly de/roy & o!rs completely ext]m9ate any semblance ( a bact]ial film on ! s& b$4 ,^! ideas1 advanc$ )\t any real & s]i\s discussion ( _! intr9sic m]its1 or _! effects on ! public heal?1 are n f\nd$ on long cont9u\s records ( su* results z are necess>y to e/abli% confid5ce 9 ! f9al value ( any ( ^! me?ods4 ,rapid advances along ?is l9e h be5 made m rec5tly1 not)/&+ ! occurr5ce ( notable in/ances ( tr\ble & ! resultant ne$ ( complete repair ( filtration b$s4 ,because ( ! r\gh treatm5t ( ! s& surface1 a p5etration ( organic matt] & fil? into ! b$ _h tak5 place4 ,?is caus$ deep clogg+1 prev5t$ ! usual yield ( wat]1 & br\ght ab\t a less5$ bact]ial effici5cy1 due to ! attempt to =ce wat] ?r\gh ! filt]s1 & because "s organic matt] & gr[?s 9 ! l[] "p ( ! b$ _h furni%$ a bre$+ place = m bact]ia4 ,all ^! endeavors to r$uce ! "w ( clean+ h be5 comm5dable1 because scrap+ & s& h&l+ are ! items ( greate/ exp5se 9 sl[ s& filt] ma9t5ance4 ,e "o has be5 desir\s ( m9imiz+ ?is co/4 ,h[ev]1 z ! writ] w endeavor to %[1 x seems t attempts along ?is l9e %\ld be ) ! idea ( do+ m economically1 z well z effici5tly1 ! ?+s :i* "o kn[s w accompli% ! prop] results1 r ?an unwisely to adopt new me?ods :i* h n be5 tri$ = a long en\gh p]iod to det]m9e _! effect on ! public heal?4 ,pittsburg ,me?ods4--,:5 fir/ tak+ up ! problem ( design 9 ,pittsburg1 9 #aijb1 ! writ] _h pres5t$ to him = consid]ation & adoption1 a sugge/ion t a c]ta9 me?od ( clean+ s& filt]s1 :i* w\ld involve ! wa%+ ( ! s& 9 place 7simil> to t rec5tly tri$ at ! ,j]ome ,p>k ,exp]im5t ,/ation1 ,new ,york ,city71 w\ld be advisable & economical4 ,! decision !n made has nev] be5 regrett$4 ,z ?is plan involv$ su* a complete dep>ture f ^? pr9ciples :i* _h be5 well tri$ & _h prov5 successful1 x 0 believ$ t x 0 n safe to adopt su* a me?od on ! municipal filtration works1 f :i* ! p 7 to d]ive _! dr9k+ wat]4 ,!re is m to be consid]$ 9 su* a problem ?an m]e economy ( op]ation2 ! economy ( human life1 ! effect on :i* requires f> long] ?an a few mon?s ( trial to det]m9e1 is a mu* m important factor4 ,believ+ t no "o %\ld dep>t1 until aft] a long p]iod ( conclusive exp]im5tation1 f t pr9ciple :i* is kn[n to be safe 7viz41 to take (f a small portion ( ! clogg+ surface71 ! writ] /udi$ to det]m9e m effici5t & economical me?ods ( accompli%+ ?is end4 ,a device = scrap+ ! mat]ial1 9 j ! same way z ) %ovels1 b m effici5tly & m exactly1 0 develop$ by ,george ,p4 ,baldw91 ,m4 ,am4 ,soc4 ,c4 ,e41 "u ! g5]al sup]vision ( ! ,bureau ( ,filtration1 ( :i* ! writ] 0 9 *>ge4 ,h[ev]1 on acc\nt ( ! un=tunate & e>li] arrangem5t ( o!r con/ructive matt]s1 :i* ! ,city's ,legal ,dep>tm5t advis$ c\ld n be *ang$ )\t upsett+ ! contract1 ! entrance doors to ! orig9al =ty-six filt]s 7 n built l>ge en\gh to p]mit ! rapid & economical transf] ( ^! ma*9es1 &1 z ?is act takes s l>ge a proportion ( ! total "t ( op]ation1 x has n be5 f\nd economical to use !m4 ,! additional t5 filt]s1 rec5tly con/ruct$1 ) doors especially design$ & l>ge en\gh to pass ! ma*9es1 h n yet be5 plac$ 9 op]ation4 ,?is is said to be on acc\nt ( lack ( funds & ( employees4 ,!re=e1 !re has be5 no opportunity to demon/rate :at ! scrap+ ma*9es c d1 "u ! conditions = :i* !y 7 design$ to op]ate4 ,! re/or+ ma*9e1 a complem5t>y device 9 me*anical op]ation1 :i* simply replaces ! s& 9 ! same condition t x w\ld be if :eel$ back1 b1 ) a small p]c5tage ( moi/ure1 has accompli%$ its purpose well & economically4 ,! s& is plac$ 9 ! filt]s s t !re is no fur!r settl+2 ) a smoo? surface1 ne$+ no additional adju/m5t2 ) absolutely no possibility ( sub-surface clogg+2 & ) ! filt]s />t+ (f exce$+ly well 9 op]ative results4 ,wa%+ton ,me?ods4--,9 ,wa%+ton1 x is /at$ t ! filt]s are /ill clean$ by ! old-fa%ion$ me?od ( scrap+ ) %ovels1 ?r[+ ! s& into piles1 & aft]w>d remov+ x ) a movable ejector4 ,betwe5 scrap+s !re is also an occasional mid-p]iod action ( rak+ ! unwat]$ s& surface1 = ! purpose ( /irr+ up ! dirty film4 ,?is process does n remove any ( ! clogg+ mat]ial f ! b$1 b x is said t no injuri\s effects are produc$1 & t x is economical4 ,x is /at$ t ! s-call$ ,brooklyn me?od1 ( /irr+ ! surface ( ! s& :ile ! wat] is on ! b$1 has be5 tri$ at ,wa%+ton1 b ) unsatisfactory results4 ,x seems to h be5 advocat$ ) great] f]vor 9 "s o!r places4 ,! me?od ( dry rak+ does n remove ! dirty mat]ial1 b loos5s up ! pores ( ! surface1 & ?r\gh ?is porosity p]mits clogg+ to p5etrate deep] into ! filt]4 ,! me?od ( rak+ ) wat] on ! b$1 al?\gh x removes "s ( ! organic dirt1 also p]mits deep] p5etration ( ! rema9d]4 ,! late/ devis$ sy/em ( wa%+ ! s& 9 place1 by upw>d spray+ ) wat]1 call$ ! ,blaisdell me?od1 ?or\ghly de/roys ! ,s*mutzdecke above1 &1 at ! same "t1 mu/ p]mit ! =mation ( a subsidi>y "o bel[4 ,9 ! ,ni*ols me?od1 ! mat]ial remov$ by %ovel scrap+ is convey$ by an ejector to a portable sep>ator1 :]e x receives a s+le wa%+2 ! dirty wat] ov]fl[s to ! sew]1 :ile ! wa%$ s& is dis*>g$ ?r\gh a hose & deposit$ on ! rec5tly scrap$ surface4 ,z ! latt] is p>tly impregnat$ ) impurities1 !re is1 by ?is process1 a t5d5cy t[>d sub-surface clogg+4 ,all ^! processes are m>k$ & s]i\s dep>tures f ! well-tri$ me?od ( clean+ sl[ s& filt]s1 :i*1 x is well kn[n1 w op]ate successfully to purify pollut$ riv] wat]s & make !m safe to dr9k4 ,9 all !re is ! dang] t !y h n be5 suffici5tly & c>efully tri$1 "u sci5tific obs]vation1 z to results & possible effects on ! public heal?1 to be sure t ! bact]ial effici5cy c long cont9ue to be satisfactory1 ) ! application ( specifically infect$ wat]s4 ,x is dang]\s1 & may ev5 jeop>dize ! safety ( human lives1 to exp]im5t on wat] :i* is furni%$ = dr9k+ purposes4 ,!re is also ! add$ dang]1 well kn[n f pa/ exp]i5ce1 t 9 a few ye>s 7x may be m or less1 dep5d+ on ! ext5t & int5sity ( ! new work+s7 ! filt]s w ne$ r5ovation1 p>tly1 if n :olly1 ?r\gh\t ! entire b$4 ,?us1 consid]+ ! total co/ dur+ a long t]m ( ye>s1 ! app>5tly *eap] me?od may become ! mo/ exp5sive4 ,!re is also an int]e/+ qu]y 9 reg>d to ! ,wa%+ton me?od ( replac+ s& 9 ! filt]s1 & x is wor?y ( mo/ c>eful ?\ght & att5tion4 ,if ! process describ$ c be c>ri$ on ) success & safety1 x w prove to be a long & progressive /ep 9 ! me?ods ( op]ation4 ,! difficulty1 h[ev]1 is 9 det]m9+ f any %ort-t]m runs :e!r su* a process c be cont9u$ p]man5tly )\t impair+ ! effici5cy ( ! s& b$4 ,app>5tly good conditions may *ange1 aft] a few ye>s' trial1 & be foll[$ by unsafe results & pr$icam5ts4 ,?is replac+ ( s& ) :atev] dirt & detritus may travel ) x 9 ! c>ry+ wat] is c]ta9ly n equival5t to ! c>e ) :i* x has be5 und]/ood t s& %\ld be deposit$ 9 filt]s4 ,x is n comp>able ) ! c>e ) :i* x is plac$1 :5 :eel$ f a wa%]1 :]e dirty wat] ov]fl[s ! lip1 or :]e x is plac$ by a ma*9e re/or] 9 ! filt]1 :]e ! transport+ wat] also ov]fl[s ! weir & is c>ri$ to ! sew]4 ,^! *eap & rapid me?ods ( do+ ! "w1 advanc$ 9 ! int]e/s ( economy1 & ! idea t s& filt]s1 receiv+ pollut+ wat]s1 c op]ate at high] rates ?an ^? :i* we h demon/rat$1 &1 !re=e1 h be5 l$ to believe are safe1 is a spe$+ up ( ! :ole organization & ( op]at+ conditions4 ,x is l spe$+ up a ma*9e = ! purpose ( gett+ a great] output1 ) ! usual result t fa/ runn+ means quick] we>+ out ( bo? man & ma*9e4 ,quick] op]ations g5]ally mean c>elessness 9 do+ ! "w1 especially 9 municipal s]vice4 ,c>elessness is eng5d]$ by ! ?\ght t su* "w c be h&l$ 9 a r\gh & rapid way1 &1 fur!r1 by ! ridicule ( all ^! ?+s1 :i* we h le>n$ to be c>eful ab\t1 z old-fogyi%1 out-(-fa%ion1 & ar*aic4 ,c>elessness 9 op]ation bre$s contempt = ! art4 ,"s ( ! less effici5t filt] plants1 f ! /&po9t ( effect on ! public heal?1 may reflect su* ill-consid]$ me?ods ,economy ) ,effici5cy 9 ,op]ation4--,x is p>ticul>ly important to f9d out :e!r "o c secure ! desir$ economy1 &1 at ! same "t1 ! requir$ effici5cy4 ,! developm5t ( effici5cy 9 e l9e ( human endeavor is receiv+ mu* att5tion at pres5t1 & n ! lea/ cause = ?is is ! gr[+ recognition ( ! dem& = a high /&>d ( s]vice = ! exp5se caus$4 ,"o ( ! fir/ requirem5ts is to h well-def9$ ideals & /&>ds4 ,:5 "o kn[s h[ to secure a good & safe result1 x is unwise to dep>t !refrom = a m]e :im1 or to secure a suppos$ly less5$ exp5se1 unless o!r facts be also det]m9$ favorably4 ,! desire = economy mu/ be temp]$ by good s5se1 :i* means t "o %\ld be will+ to *ange a me?od only :5 ! wisdom ( su* has be5 cle>ly demon/rat$4 ,effici5t s]vice c only be secur$ by /rict discipl9e1 accompani$ by fair deal+4 ,?is means employ+ no m m5 ?an are actually necess>y1 pay+ !m on ! basis ( ! /&>d ( s]vice & output produc$1 tak+ an int]e/ 9 ! work+ conditions1 & provid+ = _! heal? & welf>e4 ,ab\t twelve ye>s ago1 ! writ] made "s inve/igations ( ! effici5cy ( labor+ gangs 9 scrap+ & h&l+ s& at filt] b$s1#a & f\nd t t5 m5 0 ! mo/ economical numb] to use 9 scrap+ ! surface ( ! ,lawr5ce filt]1 z !n built & op]at$4 ,?is result 0 det]m9$ by num]\s /udies ( ! output p] man p] m9ute1 ) diff]5t numb]s ( m5 work+ "u diff]5t conditions4 ,?is same sort ( /udy has be5 c>ri$ fur!r by adepts 9 ! art1 9 ref]5ce to %op & simil> managem5t1 b "o fails to f9d correspond+ developm5t along ?is l9e 9 municipal organization except by a few ( ! scatt]$ ,bureaus ( ,municipal ,rese>*4 ,^! results1 also1 h relat$ to a few ( ! m common & g5]al factors1 su* z det]m9+ ! co/ p] mile1 or p] squ>e y>d1 ( /reet clean$1 or p] million gallons ( wat] pump$4 ,footnote #a3 ,transactions1 ,am4 ,soc4 ,c4 ,e41 ,vol4 ,,xlvi1 p4 #bia4 ,! co/ ( ! managem5t ( wat]-works1 "o ( ! l>ge/ factors ( public ent]prise1 has nev] be5 inve/igat$ ext5sively & ?or\ghly4 ,!re is mu* possibility 9 plann+ = great] effici5cy & 9 det]m9+ :at c be accompli%$ "u economical adm9i/ration4 ,e "o is aw>e ( ! multiplicity ( m5 9 municipal s]vice4 ,"s ( ^! are entirely incompet5t1 o!rs p>tly s2 ! rec5t appo9tees may be m effici5t1 b ! majority ( !m gradually det]iorate "u ! subtle influ5ce ( ! prevail+ atmosph]e1 & ea* new incom+ adm9i/ration places m & m m5 on ! "w1 )\t reason or necessity4 ,all ^! t5d5cies h made ! co/ & ma9t5ance ( public "w great] & great]1 &1 at ! same "t1 h result$ 9 frequ5tly & /eadily decreas+ ! output & effici5cy p] employee4 ,! ,wa%+ton situation1 h[ev]1 pres5ts an admirable contra/ to ?is1 because ( ! me?ods ( adm9i/ration ( ! public works ( ! ,di/rict ( ,columbia & _! fre$om f petty political influ5ce4 ,! limit$ numb] ( employees has t5d$ t[>d economy1 & r5d]$ ?is plant ! envy ( all :o h desir$ to obta9 good managem5t4 ,its co/ items h be5 look$ on z a result long hop$ =1 b seldom obta9$4 ,x is to be regrett$1 !re=e1 t su* an abrupt *ange 9 me?ods ( remov+ clogg+ mat]ial & replac+ s& has tak5 place )\t ye>s ( exp]im5tal trial on filt]s n furni%+ dr9k+ wat] to ! public1 & )\t an attempt1 "u su* excell5t conditions1 to ma9ta9 ! effici5cy by a bett] labor output & by improv$ work+ & ma*9e me?ods 9 ! p]=mance ( ! old] & e/abli%$ ord] ( do+ ?+s4 ,9 prep>+ wat] = ! use ( ! p1 ! realms ( ! unkn[n are s mu* l>g] ?an ^? :i* h be5 inve/igat$ & develop$ t !re may be _m undiscov]$ factors affect+ ! public heal?1 & _m ways 9 :i* x is dang]\s to dep>t f well-kn[n & surely safe me?ods4 ,:o c say t 9 "s subtle &1 at pres5t1 unkn[n mann]1 ! failure 9 "s places1 :]e filtration is practic$1 to r$uce ! dea? rate f typhoid fev] may n be due to ! introduction ( radical dep>tures f ! old]1 sl[]1 saf]1 & m effici5t me?ods :i* h produc$ su* excell5t results1 bo? 9 ,am]ica & 9 ,europe8 ,fur!r1 9 cases :]e !re has be5 a fall+ (f 9 ! typhoid dea? rate1 ! failure to secure an accompany+ improvem5t 9 g5]al heal? conditions1 :i* foll[s s closely 9 communities suppli$ by wat] filt]$ 9 accordance ) ! m cons]vative pr9ciples1 may be due to ! introduction ( "s ( ^! n ?or\ghly tri$ processes4 ,"s day full in=mation may be available z to ! influ5ce ( ^! me?ods ( plant op]ation on ! heal? ( ! community4 ,until t "t1 is x n a mu* bett] policy to foll[ ! pr9ciples :i* h be5 prov5 by _m ye>s ( exp]i5ce to produce safe results1 & to make ! =emo/ object ! improvem5t ( ! me?ods ( op]ation 9 accordance ) ^! e/abli%$ tru?s8 ,!re is opportunity = ! upbuild+ ( great] effici5cy 9 ! conduct ( employees & 9 secur+ ! maximum output1 by e/abli%+ m com=table & heal?ful conditions ?an usually exi/4 ,! elim9ation ( political influ5ce f municipal s]vice is also a task :i* *all5ges ! p ( to-day1 & ! op]at+ & manag+ eng9e] is 9 a position to p]=m an important "p 9 accompli%+ ?is end4 ,! numb] ( employees c be r$uc$ to ^? actually ne$$1 & ! way op5$ = ! employm5t ( m5 :o ?or\ghly und]/& ! necessities ( hone/y & effici5cy 9 ! conduct ( public affairs4 ,x %\ld be rememb]$ t to design & con/ruct well is only half ! job2 to op]ate economically & effici5tly is ev5 m ( a problem ?an to build1 & requires j z good tal5t1 j z ke5 appreciation ( ! v>i\s problems1 & is ev5 m ess5tial to public welf>e4 ,x seems to ! writ] t ! logical developm5t ( ! art ( obta9+ economy z well z effici5cy %\ld be along ^! l9es1 r ?an to revolutionize me?ods1 )\t hav+ a long-p]iod te/ ( _! value1 & at ! same "t all[ political influ5ces to control1 to a l>ge ext5t1 ! labor item4 ,prelim9>y ,treatm5t4--,! decision z to ! prelim9>y treatm5t ( ! ,potomac ,riv] wat] be=e filtration is ( int]e/1 p>ticul>ly because v>i\s o!r conclusions h be5 rea*$ 9 diff]5t sections ( ! c\ntry4 ,h[ev]1 9 ! ma91 ^! decisions h be5 due to diff]5ces 9 ! "* ( ! wat]s1 b x mu/ be evid5t t !y h sometimes be5 ! result ( ill-consid]$ action1 or ! desire to promote "s special int]e/4 ,! use ( prelim9>y filt]s1 :i* involves a l>ge inve/m5t1 is n always to be comm5d$1 p>ticul>ly because at times ( reasonably good wat] ! removal ( "s ( ! organic matt] is really injuri\s & less5s ! effect ( ! f9al filt]s4 ,= a long "t1 ! writ] has believ$ t1 :]e o!r ?+s are equal1 & :]e !re is no important reason = d\ble or prelim9>y filtration1 long p]iods ( /orage1 accompani$ by ! use ( coagulant at times ( sev]e & extreme mudd9ess1 z plann$ at ,wa%+ton1 solves ! problem 9 ! mo/ practical & economical way4 ,x is true t ! inve/m5t = a l>ge /orage bas9 may equal1 or ev5 exce$1 t requir$ = prelim9>y filt]s2 b ! influ5ce ( /orage on ! quality ( raw wat] is nev] injuri\s1 &1 by rip5+ ! condition ( ! wat]1 may be greatly b5eficial 9 ! process ( filtration4 ,! /orage available 9 su* a bas9 makes x possible to %ut (f ! supply f ! riv] dur+ ! wor/ conditions ( ! wat]4 ,! duration ( ! mo/ tr\blesome spells ord9>ily does n exce$ a few days1 & x is usually possible to secure suffici5t capacity 9 ! bas9 to tide ov] ^! p]iods4 ,!n aga91 long p]iods ( /orage1 9 addition to assi/+ 9 break+ up organic matt]1 p]mit ! dy+ out ( bact]ia1 p>ticul>ly _m ( ! pa?og5ic k9d1 &1 !re=e1 ! wat] is r5d]$ mu* saf] f ?is /&po9t4 ,9 o!r words1 !re is additional insurance 9 long /orage aga9/ ! faulty & c>eless op]ation ( incompet5t filt] employees4 ,! addition ( coagulant1 especially ! fact t only a v small inve/m5t ( capital is requir$ = ! necess>y app>atus = dos+ ! wat]1 & t ! co/ ( ! coagulat+ mat]ials has to be met only :5 us$1 seems to give ! process1 9 a mo/ satisfactory mann]1 ! requirem5t = economical managem5t & ?or\ghness 9 prep>+ ! wat] = f9al filtration4 ,p>k+ ,public ,works4--,x is disappo9t+ t ! au?or has n m5tion$ "s ( ! /eps contemplat$ 9 ref]5ce to ! l&scape treatm5t ( ! ,wa%+ton filtration area4 ,probably e "o has be5 impress$ by ! b>r5 aspect ( ! works z !y are approa*$1 & z "o looks ov] !m4 ,rec5tly1 h[ev]1 x is /at$ t "s /eps h be5 tak5 to lay out ! gr\nds1 treat ! surface 9 an attractive mann]1 & make a p>k ( ! area4 ,! writ] has a firm op9ion t :5 an inve/m5t is made = public works1 x co/s b little 9 addition to con/ruct build+s along appropriate ar*itectural l9es1 to treat ! gr\nds 9 a pleas+ mann]1 & to make ! entire works a cr$it to ! municipality f an arti/ic /&po9t4 ,:5 treat$ on broad l9es1 su* areas become public p>ks1 & af=d op5 brea?+ places = ! resid5ts1 &1 if ne> c5t]s ( population1 may well be equipp$ ) playgr\nd facilities = ! *ildr54 ,:5 ?us develop$ !y %\ld h c>e1 t ! plant+ & equipm5t %\ld n det]iorate & ! la/ /ate become worse ?an ! fir/4 ,! influ5ce :i* ^! ev]-pres5t examples ( attractiv5ess h on ! community is becom+ bett] recogniz$ by /ud5ts ( social progress1 & !re seems to be no d\bt t sp5d+ money on su* features is n only desirable f ! arti/ic /&po9t1 b is ju/ifi$ on practical gr\nds z well4 ,x is *eap] ?an to create p>ks1 :5 necessity & dem& c no long] be resi/$1 by buy+ prop]ty & occasionally te>+ d[n build+s & con/ruct+ de novo4 ,t ?is "w is n[ be+ done 9 ,wa%+ton1 ev5 aft] con/ruction1 is c]ta9ly a recognition ( ! advisability ( orig9al ef=ts 9 ?is direction4 ,george ,c4 ,:ipple1 ,m4 ,am4 ,soc4 ,c4 ,e4 7by lett]74--,mr4 ,h>dy's pap] is an excell5t pres5tation ( ! results ( ! op]ation ( ! ,wa%+ton wat] filtration plant f ! "t ( its con/ruction 9 #aije until ,june1 #aiaj4 ,pap]s ( ?is "* are altoge!r too infrequ5t1 & ! actual results f ! filt]s n[ 9 use are n readily accessible 9 detail$ =m4 ,yet x is only by /udy+ ! results obta9$ by filt]s 9 actual use t improvem5ts c be made & ! art advanc$4 ,among ! _m important facts br\ght out by ,mr4 ,h>dy1 only a few c be select$ = discussion4 ,"o ( ^! is ! op]ation ( filt]s "u w9t] conditions4 ,x is well kn[n t ! effici5cy ( s$im5tation bas9s & filt]s is l[] dur+ w9t] ?an at o!r times1 yet x is j at ?is season ( ! ye> t !re is ! greate/ dang] ( typhoid fev] & simil> wat]-borne diseases be+ transmitt$ by wat]4 ,mo/ ( ! great typhoid epidemics h occurr$ dur+ cold wea!r1 & ! v use ( ! t]m w9t] *ol]a is ( significance4 ,app>5tly1 typhoid bacilli & simil> bact]ia are capable ( liv+ & reta9+ _! vitality longe/ dur+ t season ( ! ye>4 ,j :y ?is is s1 bact]iologi/s h n satisfactorily expla9$4 ,d\btless _m factors are involv$4 ,because ( ! increas$ viscosity ( ! wat]1 s$im5tation takes place less readily at l[] temp]atures1 & inasmu* z s& filtration is p>tly dep5d5t on s$im5tation1 ! effici5cy t5ds to fall (f 9 cold wea!r4 ,dur+ w9t] "s ( ! ext]nal de/roy+ ag5cies are less pot5t1 su* z ! /]iliz+ effect ( sunlight1 & ! pres5ce & activity ( "s ( ! l>g] =ms ( microscopic organisms :i* prey on ! bact]ia4 ,ano!r factor may be ! great] am\nt ( dissolv$ oxyg5 normally pres5t 9 wat] dur+ cold wea!r1 z exp]im5ts h %[n t dissolv$ oxyg5 favors longevity4 ,/ill ano!r reason = ! l>g] numb]s ( bact]ia t pass ?r\gh a wat] filt] dur+ cold wea!r may be ! effect t ! l[ temp]ature has on ! size ( ! bact]ia !mselves4 ,a few exp]im5ts made rec5tly by ! writ] appe> to indicate t at l[ temp]atures ! gelat9\s membrane :i* surr\nds ! bact]ial cells t5ds to become some:at contract$1 ?us decreas+ ! app>5t size ( ! bact]ia z se5 "u ! microscope4 ,ei!r ?is contraction occurs1 or ! cells !mselves are small] :5 !y develop 9 ! cold4 ,x is possible also t l[ temp]ature affects ! flagella ( ! organisms 9 ! same way4 ,x is n unreasonable to suppose t ! effect ( l[ temp]ature is to =m :at may be1 9 effect1 a protective coat+ ar\nd ! cells1 :i* t5ds to make !m small]1 less /icky1 & less subject to outside influ5ces4 ,?is w\ld t5d to make !m pass ?r\gh a filt] m readily4 ,9 l9e ) ?is idea also is ! well-kn[n fact t dis9fection is less effici5t 9 cold wat] ?an 9 w>m wat]4 ,ano!r way ( view+ ! matt] is t cold ret>ds ! gr[? ( bact]ia on ! filt]1 ?us r$uc+ ! effect ( ! ,s*mutzdecke4 ,/ill ano!r view ( ! great] dang] f bact]ial contam9ation 9 w9t] is ! !ory t cold prolongs ! life ( ! bact]ia by m]ely prev5t+ !m f liv+ ?r\gh _! life cycle & rea*+ natural old age & dea? z rapidly z 9 w>m wea!r4 ,ano!r topic 9 ,mr4 ,h>dy's pap] :i* has int]e/$ ! writ] is t ( prelim9>y filt]s4 ,! exp]im5ts describ$ at l5g? indicate cle>ly t su* devices w\ld prove ( little or no b5efit "u ! conditions exi/+ 9 ,wa%+ton1 & t :5 ! riv] conta9s consid]able am\nts ( susp5d$ clay no?+ less ?an *emical coagulation w suffice to treat ! wat] s t ! efflu5t w be p]fectly cle>4 ,prelim9>y filt]s h be5 us$ = a numb] ( ye>s at v>i\s places & ) v>y+ success4 ,9 few in/ances h !y be5 op]at$ = a suffici5t l5g? ( "t or be5 /udi$ ) suffici5t c>e to det]m9e fully _! economy & effici5cy z comp>$ ) o!r possible me?ods ( prelim9>y treatm5t4 ,among o!r exp]im5ts on ?is matt] are ^? made at ,albany1 ,n4 ,y41 & publi%$ by ,wallace ,gre5al*1 ,assoc4 ,m4 ,am4 ,soc4 ,c4 ,e41 9 ! ,fifty-n9? ,annual ,report ( ! ,bureau ( ,wat] = ! ye> end+ ,septemb] #cj?1 #aiji4 ,! ,hudson ,riv] wat] us$ at ,albany is q diff]5t 9 "* f ! ,potomac ,riv] wat] us$ at ,wa%+ton1 z x is less turbid & conta9s r m organic matt]4 ,! results obta9$ 9 ^! exp]im5ts %[$ t dur+ ! summ] ! numb] ( bact]ia 9 ! efflu5t f ! exp]im5tal s& filt] us$ 9 connection ) a prelim9>y filt] did n diff] widely f ! numb] f\nd 9 ! efflu5t ( ! city filt] :]e !re 0 no o!r prelim9>y treatm5t ?an s$im5tation4 ,9 ! w9t]1 h[ev]1 ! numb]s ( bact]ia did n increase 9 ! efflu5t f ! exp]im5tal filt] z !y did 9 ! efflu5t f ! city filt]4 ,?is is %[n by ,table #bf1 tak5 f ! report m5tion$4 ,app>5tly1 !re=e1 at ,albany ! b5efits ( ! prelim9>y filt]1 z f> z bact]ial effici5cy is conc]n$1 w\ld be conf9$ to a %ort p]iod ( ?ree or f\r mon?s 9 ea* ye>4 ,"u su* circum/ances x may well be que/ion$ :e!r ! advantages ( prelim9>y filtration ju/ify its co/4 ,table #bf--,results ( ,exp]im5ts ) ,prelim9>y ,filt] at ,albany1 ,n4 ,y4 ,mon?1 ,bact]ia ,bact]ia ,bact]ia 9,bact]ia 9 #aijf4 9 raw 9 pre- efflu5t efflu5t wat]4 lim9>y f f filt] exp]im5talcity filt]4 efflu5t4s& filt]4 ---------------------------------------- --------------- ,m>* #acc1dhj #cf1jjj #aea #gjf ,april #gg1dbj #d1haj #gb #aee ,may #ae1hjj #b1bej #dh #cg ,june #d1ebj #ceh #ch #cd ,july #b1jij #afc #be #bb ,augu/ #b1gdj #aba #cf #bb ,septemb] #h1bhj #dde #bj #bd ,octob] #ch1cej #d1bce #fg #bbg ,novemb] #fg1iaj #ae1egj #ccg #cda ,decemb] #fde1ejj #be1ddj #add #b1ghc ---------------------------------------- --------------- #aijg4 ,janu>y #abg1efj #d1ffj #dh #ddc ,febru>y #bh1jjj #a1hjj #ac #aaf ,on ! diagram1 ,figure #aa1 w be f\nd v>i\s data tak5 f ! publi%$ records ( ! ,albany filt]1 f #ahii to #aiji4 ,^! data include3 ,! numb]s ( bact]ia be=e & aft] filtration2 ! p]c5tage ( bact]ia rema9+ 9 ! efflu5t2 ! av]age quantity ( wat] filt]$1 9 millions ( gallons p] day2 ! quantities ( wat] filt]$ betwe5 scrap+s2 ! turbidity ( ! raw wat]2 ! co/ ( filtration1 includ+ capital *>ges & co/ ( op]ation2 & ! typhoid dea? rates ( ! city p] mon?4 ,sev]al po9ts are br\ght out conspicu\sly by ?is diagram4 ,"o is ! uni=mly l[ dea? rate f typhoid ?r\gh\t ! entire p]iod4 ,! filt] 0 op]at$ f #ahii until ! fall ( #aijg ) raw wat] tak5 f :at is kn[n z ! ,back ,*annel4 ,s9ce !n x has be5 tak5 f a new intake :i* ext5ds into ! ,hudson ,riv] itself4 ,until ! fall ( #aijh ! prelim9>y treatm5t consi/$ m]ely ( s$im5tation1 b s9ce !n ! wat] has receiv$ an additional prelim9>y treatm5t 9 me*anical filt]s op]at$ )\t coagulant1 along ! l9es ( ! exp]im5ts j m5tion$4 ,dur+ ?is "t ! av]age rate ( filtration ( ! s& filt] has n *ang$ mat]ially1 al?\gh x is said t ! maximum rate has be5 increas$ s9ce ! prelim9>y filt]s 7 put 9 s]vice4 ,! /udy ( ! bact]iological analyses %[s t ! be/ results 7 obta9$ dur+ #aijb1 #aijc1 & #aijd4 ,s9ce !n ! numb]s ( bact]ia 9 bo? ! raw & filt]$ wat] h increas$4 ,?is 0 especially noticeable dur+ ! w9t]s ( #aijg & #aijh :5 ! wat] 0 tak5 f ! new intake4 ,x w be int]e/+ to comp>e ! results aft] ! prelim9>y filt]s h be5 op]at$ = a long p]iod to asc]ta9 _! normal effect on effici5cy & on ! increas$ yield4 ,illu/ration3 ,figure #aa--;,filt]s at ,albany1 ,n4 ,y4 ,results ( ,op]ation4 #ahii-aiji4 ,compil$ f data 9 ,annual ,reports4 ,ano!r fact to be drawn f ! plott$ ,albany data is ! increase 9 ! co/ ( filtration1 bo? 9 capital *>ges & 9 op]ation4 ,f #ahii until #aijf ! co/ ( op]ation1 includ+ ! co/ ( l[-lift pump+1 0 approximately #e p] million gallons ( wat] filt]$2 & ! total co/ ( filtration1 includ+ capital *>ges1 0 ab\t #aj p] million gallons4 ,dur+ ! ye> end+ ,septemb] #cj?1 #aiji1 ! co/ ( op]ation _h increas$ to #g4fc p] million gallons1 & ! total co/ ( filtration to #ae4ib p] million gallons1 or approximately #ej 9 ?ree ye>s4 ,table #bg--,results ( ,bact]iological ,analyses ( ,samples ( ,wat] at ,peekskill1 ,n4 ,y41 ,be=e & ,aft] ,filtration4 ,bact]ia p] cubic c5timet]4 ,raw ,cle> ,efflu5t,efflu5t,efflu5t,efflu5t ,tap 9 ,date4 wat]4 res]- ,no4 #a4 ,no4 #b4 ,no4 #c4 ,no4 #d4 city4 voir4 ---------------------------------------- ---------------------------- #aiji4 ---------------------------------------- ---------------------------- ,decemb] #bi? #aij #ajj 444 444 444 444 444 ---------------------------------------- ---------------------------- #aiaj4 ---------------------------------------- ---------------------------- ,febru>y #ae? #ace #aj #aj #cj #bj 444 #bfe ,m>* #ca/ #bbe #ej #be #de #fj 444 #ce ,may #ah? #cjj #bi #bb #bf #ce #dc #cf ,july #f? #cjj #dd #i #c #da #aj #ca ,augu/ #af? #fj #e #j #d #a #ac #ae ,octob] #c;d #eej #ad #ab #ad #ch 444 444 ,novemb] #ba/ #cae #bb #bf #ag #f 444 444 ---------------------------------------- ---------------------------- #aiaa4 ---------------------------------------- ---------------------------- ,janu>y #be? #dae #g #h #d #f 444 #g ---------------------------------------- ---------------------------- ,av]age #bgg #cj #ad #af #bf #bb #fe ,table #ag--7;,cont9u$47 ,te/s = ,b4 ,coli4 ,p]c5tage ( ,samples ,quantity ( wat] ,conta9+ ,b4 ,coli4 te/$4 --------------------- ,raw4 ,filt]$4 --------------------------------------- #j4a cu4 cm4 #j #j #a4j cu4 cm4 #bj #j #aj4j cu4 cm4 #dj #j ,z a matt] ( record1 ! results ( a s]ies ( analyses made at ,peekskill1 ,n4 ,y41 dur+ #aiaj are pres5t$ 9 ,table #bg4 ,a s& filt] 0 con/ruct$ = ! wat] supply ( ?is city 9 #aiji1 & put 9 op]ation 9 ,decemb]4 ,! filt] has a capacity ( #d1jjj1jjj gal4 p] day4 ,! supply is tak5 f ,peekskill ,creek1 & ! wat] receives ab\t "o week's nom9al /orage be=e fl[+ to ! filt]s4 ,an a]ator is us$ be=e filtration dur+ ! summ]1 :5 algae are likely to develop 9 ! res]voir4 ,! filt] 0 in/all$ aft] an epidemic ( typhoid :i* 0 app>5tly caus$ by an infection ( ! wat] supply4 ,normally1 ! wat] has be5 little contam9at$1 b ! supply is subject to accid5tal contam9ation at any "t1 among o!r possible s\rces ( infection be+ ! camps ( workm5 n[ engag$ 9 con/ruct+ ! ,catskill ,aqu$uct = ,new ,york ,city4 ,table #bh--;,av]age ,results ( ,*emical ,analysis at ,peekskill1 ,n4 ,y41 ,made at ,int]vals ( ,six ,weeks ,dur+ #aiaj4 ,p>ts p] ,p>ts p] ,million4 ,million4 ---------------- ---------------- ,raw ,filt]$ ,raw ,filt]$ wat]4 wat]4 wat]4 wat]4 ---------------------------------------- ----------------------------- ,turbidity #b4 #j ,total residue #gj4 #gf4jj ,color #be4 #bj4 ,loss on ignition #ai4jj #ag4jj ,nitrog5 z albumi- ,fix$ residue #ej4jj #ei4jj noid ammonia #j4aab #j4jgf ,iron #j4ag #j4ac ,nitrog5 z free ,total h>dness #ch4gj #de4aj ammonia #j4jbd #j4jjf ,alkal9ity #cc4ij #db4fj ,nitrog5 z nitrites #j4jja #j4jja ,incru/ants #d4fj #d4ej ,nitrog5 z nitrates #j4jf #j4jf ,*lor9e #b4fj #b4gj ,f4 ,f4 ,longley1 ,assoc4 ,m4 ,am4 ,soc4 ,c4 ,e4 7by lett]74--,9 ?is pap] ! au?or has pres5t$ a mass ( data :i* w be welcom$ by eng9e]s engag$ 9 wat] purification "w1 because complete op]at+ records =m a sub/antial basis = improvem5t 9 ! art1 & are (t5 ! inspiration = int]e/+ discussions & ! ex*ange ( exp]i5ces ( diff]5t obs]v]s ^: views are mutually appreciat$4 ,rec5t t5d5cies 9 filtration eng9e]+ h be5 l>gely 9 ! direction ( r$uc+ ! co/ ( op]ation4 ,a comp>ison ( ! op]at+ co/s ( ! e>li] ,am]ican plants ( ab\t a decade ago1 ) ^? "h pres5t$ ( ! ,wa%+ton plant1 is v gratify+ to ^? :o h be5 intimately connect$ ) ! latt] "w4 ,?r\gh p]fection 9 design & reasonable c>e 9 op]ation1 ! co/ ( filt] clean+1 :i* is a v consid]able "p ( ! total co/1 has be5 r$uc$ to an unusually l[ figure1 )\t any sacrifice 9 effici5cy1 & 9 ! int]e/s ( ! public heal?4 ,table #ad %[s t1 f ! fir/ ye>1 !re has be5 a progressive increase 9 ! total co/ ( op]ation p] million gallons filt]$1 b ?is has n meant an increase 9 ! annual total exp5diture4 ,! l>ge/ p]c5tage ( increase 9 any item has be5 9 ,c>e ( ,gr\nds & ,p>k+1 & cov]s mu*-desir$ l&scape improvem5ts4 ,aside f ?is1 ! pr9cipal factor affect+ ! table ( co/s has be5 ! r$uction 9 wat] consumption 9 ! ,di/rict ( ,columbia4 ,no?+ p]ta9+ to ?is r$uction has produc$ any correspond+ r$uction 9 ! =ce requir$ = ! ma9t5ance & op]ation ( ! filtration plant1 (fice & laboratory1 & pump+ /ation1 ?\gh probably !re has be5 "s r$uction 9 filt] clean+4 ,obvi\sly1 !n1 ! total co/ p] million gallons w\ld increase4 ,?is decrease 9 consumption has be5 br\ght ab\t by ! elim9ation ( wa/e 9 ! di/ribution sy/em1 :i* is n 9 ! same dep>tm5t z ! filtration plant1 b ) reg>d to :i* a ^w may n be amiss 9 connection ) ?is discussion4 ,! ,wa%+ton ,aqu$uct 0 built half a c5tury ago on l9es :i* at t "t 7 consid]$ extraord9>ily g5]\s4 ,until rec5tly1 !re=e1 !re has be5 no occasion = conc]n ov] ! high rate ( consumption4 ,dur+ rec5t ye>s1 h[ev]1 ! use & wa/e ( wat] h increas$1 rea*+ a climax "u unusual conditions 9 ! w9t] ( #aijd-je4 ,! maximum capacity ( ! aqu$uct sy/em is ab\t #ij1jjj1jjj gal4 ,! maximum daily consumption at ! "t m5tion$ arose almo/ to #ajj1jjj1jjj gal41 ) ! result t1 be=e normal conditions 7 re/or$1 ! res]voirs ( ! sy/em 7 almo/ deplet$4 ,?is _h a b5eficial effect1 z provision 0 made = an active campaign = r$uc+ ! wa/e ( wat]1 :i* 0 kn[n to be v l>ge4 ,^! inve/igations1 us+ ! pitomet]1 7 begun 9 ,july1 #aijf1 & h be5 pursu$ cont9u\sly s9ce t "t1 ) mo/ excell5t results4 ,up to ,janu>y1 #aiji1 leaks aggregat+ ab\t #ab1jjj1jjj gal4 p] day 7 detect$ & elim9at$1 & ab\t half ! h\se s]vices _h /ill to be cov]$ by ! pitomet] bureau4 ,al?\gh ?is r$uction 9 wa/e has br\ght ab\t an app>5t increase 9 ! co/ ( filtration1 its economical results h be5 f>-rea*+4 ,! causes :i* br\ght ab\t ?is inve/igation also result$ 9 secur+ an appropriation = ! /udy ( ! "q ( increas$ supply4 ,! writ] 0 9 *>ge ( ^! /udies1 & ! mo/ significant conclusion 0 t1 ow+ to ! excell5t results ( ! ef=ts = wa/e re/riction1 ! total consumption & wa/e ( wat] 9 ! di/rict dur+ ! next few ye>s w\ld be f> en\gh bel[ ! safe work+ capacity ( ! exi/+ aqu$uct sy/em to make x entirely safe to po/pone ! con/ruction ( new works1 involv+ ! exp5diture ( sev]al million doll>s1 9 spite ( ! ?reat5+ conditions ( a few ye>s ago4 ,!re has be5 s mu* controv]sy ov] typhoid fev] 9 ! ,di/rict ( ,columbia t ! writ] hesitates to discuss ?is subject4 ,view+ ! situation ?r\gh ! p]spective ( sev]al ye>s1 h[ev]1 x does n seem to be z hopeless z ! criticisms ( f\r or five ye>s ago w\ld lead "o to believe4 ,9 ,table #i1 %[+ ! typhoid dea? rates1 out ( n9e ye>s giv5 prior to #aije-jf1 :5 ! filt]s 7 />t$ 9 op]ation1 only "o %[s an annual dea? rate z l[ z ! highe/ "o s9ce t ye>4 ,fur!r ?an ?is1 ! annual av]age typhoid dea? rate = ! p]iod s9ce t ye> has be5 "o-?ird l[] ?an = a correspond+ p]iod be=e ! filt]s 7 />t$4 ,! exhau/ive rese>*es ( ! ,public ,heal? & ,m>9e ,hospital ,s]vice into ?is :ole "q1 cov]+ a p]iod ( ab\t f\r ye>s1 h rais$ ! pres5t filt]$ wat] supply ( ! ,di/rict ( ,columbia above any well-f\nd$ criticism4 ,!re has long be5 a /rong & gr[+ feel+ t ! wat] supply1 be=e filtration 0 introduc$1 _h be5 blam$ = m ?an its %>e ( ! typhoid1 & ?is is borne out by mu* evid5ce t has be5 pres5t$ f "t to "t4 ,x is n an unreasonable conjecture1 !re=e1 t p]haps ! r$uction ( "o-?ird 9 ! total typhoid dea? rate may repres5t a mu* l>g] r$uction 9 t "p ( ! total :i* 0 due to pollut$ wat] alone2 & t1 z ! au?orities 9 ! ,di/rict ( ,columbia & 9 c]ta9 o!r cities1 p>ticul>ly 9 ! ,s\?1 are n[ recogniz+1 ! fight aga9/ mu* ( ! rema9+ typhoid mu/ be 9 ! direction ( ! improvem5t ( milk supplies1 precautions aga9/ second>y infection1 & att5tion to a l>ge numb] ( details surr\nd+ ! individual1 :i* may effectively protect him aga9/ ! insidi\s attack ( ! disease favor$ by unkn[n ag5cies4 ,exp]im5ts 9 ,filt] ,clean+4 ,! au?or ref]s to ! difficulty enc\nt]$ dur+ ! fir/ two summ]s 9 keep+ ! filt]s clean$ fa/ en\gh to ma9ta9 ! capacity ( ! plant4 ,! real s]i\sness ( ?is may be judg$ f ! foll[+ facts4 ,! av]age increase 9 loss ( head on all ! filt]s = ! entire ye>1 ,july #a/1 #aijf1 to ,july #a/1 #aijg1 0 ab\t #j4jec ft4 p] day4 ,dur+ ! #aijf p]iod ( l[ capacity "u discussion1 ! loss ( head on twelve ( ! filt]s increas$ = a p]iod ( eight days at ! av]age rate ( #j4de ft4 p] day1 or ab\t n9e times ! normal rate ( increase4 ,?is difficulty 0 caus$ by ! pres5ce ( l>ge numb]s ( micro-organisms 9 ! appli$ wat]4 ,dur+ ! fir/ summ] 7#aijf7 ?is fact 0 n recogniz$1 b ! sudd5 decrease 9 capacity 0 suppos$ to h be5 caus$ by ! unusually high & long-cont9u$ turbidity :i* prevail$ dur+ t summ] 9 ! ,potomac ,riv]1 & p]si/$ 9 ! wat] suppli$ to ! filt]s ev5 aft] ab\t f\r days ( s$im5tation 9 ! res]voirs4 ,dur+ ! second summ] 7#aijg7 ! same ph5om5on ( sudd5ly & rapidly increas+ losses ( head appe>$ aga91 b )\t any unusual turbidity 9 ! appli$ wat]4 ,inve/igation1 h[ev]1 %[$ ! pres5ce ( l>ge quantities ( organisms1 p>ticul>ly melosira & syn$ra1 9 ! appli$ wat]1 & exam9ations 9 subsequ5t ye>s h %[n a p]iodic recurr5ce ( ^! =ms 9 quantities suffici5t to cause ! tr\ble m5tion$4 ,9 ,june1 #aijg1 exam9ation %[$ repeat$ly m ?an #a1jjj & #a1ejj /&>d units ( melosira p] cu4 cm41 & "o c\nt %[$ ne>ly #c1jjj /&>d units4 ,sev]al exp$i5ts 7 tri$ 9 an ef=t to re/ore ! rapidly decreas+ capacity ( ! filt]s4 ,"o ( ! e>li] conjectures z to ! cause ( ! tr\ble 0 t x might be due to ! accumulation ( l>ge quantities ( air "u ! surface ( ! s&1 z air _h be5 obs]v$ bubbl+ up ?r\gh ! s&1 especially 9 filt]s :i* _h be5 9 s]vice = "s "t4 ,! exp$i5t 0 tri$1 !re=e1 ( dra9+ ! wat] out ( ! s& & !n re-fill+ ! filt] 9 ! usual mann] f bel[1 9 ! hope ( driv+ out ! entra9$ air4 ,presumably ?is treatm5t got rid ( ! air1 b x did n re/ore ! capacity ( ! filt]1 z ! po9t ( maximum resi/ance 0 9 ! surface ( ! s& & n bel[ x4 ,z ! au?or /ates1 rak+ ! filt]s 0 tri$ & f\nd to give results :i* 7 satisfactory en\gh to meet ! em]g5cies already ref]r$ to4 ,:5 ! filt]s 7 fir/ put 9 op]ation1 9 ! fall ( #aije1 ! me?od ( br++ back ! capacity ( a filt] aft] ! end ( a run 0 to remove all ! dirty s& to a dep? det]m9$ by ! m>k$ discoloration caus$ by ! p5etration ( ! clay turbidity4 ,?is sometimes necessitat$ ! removal ( l>ge quantities ( s& at a clean+1 z ! turbidity 0 exce$+ly f9e1 & p5etrat$ at times to a dep? ( #c or #d 94 ,) ! idea ( effect+ an economy 9 ! co/ ( clean+ ! filt]s1 a s*$ule ( exp]im5ts 0 arrang$ %ortly be=e ,july #a/1 #aijg4 ,! g5]al object ( ! exp]im5ts 0 to det]m9e1 fir/1 ! relative co/s ( all diff]5t me?ods tri$2 second1 :e!r ! removal ( only a ?9 lay] ( s&1 or ! m]e break+ up ( ! surface ( ! s& by ?or\gh rak+1 w\ld give ! filt] its prop] capacity = ! succe$+ run2 ?ird1 :e!r ! filt]s "u ^! treatm5ts w\ld ma9ta9 a high /&>d ( quality 9 ! efflu5ts2 f\r?1 :e!r ! cont9u$ application ( any less ?or\gh me?od ?an ! "o !n 9 use might mat]ially affect ! future capacity ( ! filt]s4 ,to ?is end ! filt]s 7 divid$ into f\r gr\ps :i*1 dur+ a p]iod ( ab\t six mon?s1 7 subject$ to treatm5ts z foll[s3 ,gr\p ,a4--,filt]s scrap$ deep at ! end ( ea* run2 ,gr\p ,b4--,filt]s scrap$ light at ! end ( ea* run2 ,gr\p ,c4--,filt]s rak$ at ! end ( ea* run1 until rak+ fail$ to br+ back ! prop] capacity2 !n !y 7 scrap$ light1 & at ! end ( ! next run ! rak+ 0 resum$2 ,gr\p ,d4--,light scrap+s & rak+s alt]nate at ends ( runs4 ,! t]m deep scrap+ means ! removal ( practically all ! discolor$ s&1 9 accordance ) ! usual practice prior to ! beg9n+ ( ^! exp]im5ts2 light scrap+ means ! removal ( only a ?9 surface lay] ( s&4 ,?is dep? has usually av]ag$ ab\t #c_/h 94 ,rak+ means ! ?or\gh break+ up ( ! clogg$ surface ( ! filt] by iron-too!d rakes1 to a dep? ( ab\t #a or #b 94 ,results4--,a g5]al summ>y ( ! results ( ^! exp]im5ts is giv5 9 ,table #bi1 :i* also %[s ! relative co/s ( ! diff]5t me?ods p] million gallons ( wat] filt]$4 ,a normal p]iod ( #i mon?s j prior to ! beg9n+ ( ^! exp]im5ts %[s a labor co/ 7correspond+ to t 9 ,table #bi7 ( #j4bi-a_/d p] million gallons filt]$4 ,table #bi--;,av]age ,results4 ,columns3 ,a - ,gr\p4 ,b - ,numb] ( filt]s4 ,c - ,numb] ( days ( s]vice4 ,d - ,million gallons filt]$4 ,e - ,co/ ( labor p] treatm5t4 ,f - ,s& remov$ 9 cubic y>ds4 ,g - ,s& remov$ 9 cubic y>ds4 ,h - ,co/ ( labor4 ,i - ,bact]ia p] cu4 cm4 9 efflu5t4 ,j - ,turbidity 9 efflu5t4 ,p] ,million ,p] ,run3 ,gallons ,filt]$ ,i ,j ---------------------------------------- ---------- ,a ,b ,c ,d ,e ,f ,g ,h ---------------------------------------- ----------------------- ,a #e #hb #bba4b #fh4dd #bae #a4aa #j4cji #ac #a ,b #i #cf #aja4d #bi4be #hd #j4hc #j4bhh #af #a ,c #e #ba #fj4j #aj4ib #bd #j4dj #j4ahb #ah #a ,d #aj #cb #hf4j #bj4aj #df #j4ed #j4bcd #bb #a ,capacity ( ,filt]s4--,! capacity ( ! filt]s "u ! diff]5t me?ods ( treatm5t are %[n 9 a g5]al way 9 ,table #bi = days ( s]vice & millions ( gallons filt]$ p] run4 ,?is elem5t by itself is decid$ly 9 favor ( ! deep scrap+s1 & lea/ 9 favor ( ! repeat$ rak+s4 ,a cle>] conception ( ! capacities ( ! filt]s "u ^! diff]5t conditions may be obta9$ f ! f\r diagrams1 ,figure #ab1 %[+1 = ! f\r diff]5t gr\ps1 ! av]age numb] ( days ( s]vice ( ! successive runs4 ,! diagram = ,gr\p ,a %[s t ! v>iations 9 ! p]iod ( s]vice ( ! filt]s scrap$ ea* "t to clean s& foll[ a m or less def9ite curve f ye> to ye>4 ,= ! p]iod cov]$ by ?is curve1 ! t5d5cy seems to be t[>d a slight decrease 9 capacity f ye> to ye>1 z %[n by ! l[] av]age maximum & m9imum 9 ! second ye> ?an 9 ! fir/4 ,gr\p ,b %[s a sudd5 decrease 9 capacity foll[+ ! fir/ light scrap+s &1 s9ce t "t1 a l[ b q con/ant capacity4 ,gr\p ,c %[s a con/antly decreas+ capacity ) successive rak+s4 ,! only significance atta*+ to ! curve aft] ! fir/ rak+ is ! prohibitively l[ capacity indicat$1 & ! ineffectiv5ess ( ! measures tak5 to re/ore ! capacity aft] ! six? rak+4 ,gr\p ,d1 aft] ! fir/ rak+1 %[s a prohibitively l[ & con/antly decreas+ capacity4 ,! diagrams = ,c & ,d indicate a dang]\s r$uction 9 capacity if long p]si/$ 94 ,! me?od foll[$ ) ,gr\p ,c may be dismiss$ ) ! /atem5t t x is entirely insuffici5t1 & w\ld be ( use only 9 ! r>e/ em]g5cies4 ,z f> z ! "q ( capacity is conc]n$1 ^! diagrams indicate t a filt] 9 normal condition may safely be rak$ once4 ,x is believ$ t ! con/antly decreas+ capacity %[n 9 ,gr\p ,d is n due s mu* to ! rak+s z to ! small quantities ( s& remov$ at ! alt]nate scrap+s1 & !re=e x w\ld n be prop] to condemn ?is me?od ( treatm5t )\t a fur!r trial 9 :i* ?is defect 0 rem$i$4 ,?is view seems to be support$ by ! results ( ,gr\p ,b4 ,! l[ b approximately con/ant capacity !re %[n w\ld und\bt$ly h be5 high] if a great] dep? ( s& _h be5 remov$ ea* "t4 ,illu/ration3 ,figure #ab--;,av]age ,numb] ( ,days ( ,s]vice ( ,successive ,runs = ,gr\ps ,a1 ,b1 ,c1 & ,d4 ,quality ( ! ,efflu5t4--,! av]ages giv5 9 ,table #bi %[ b little diff]5ce 9 ! bact]ial cont5ts ( ! efflu5ts f ! f\r gr\ps ( filt]s4 ,all are entirely satisfactory1 & ! diff]5ces 9 favor ( "o me?od or ano!r are small4 ,9 look+ = possible diff]5ces 9 ! quality ( ! efflu5ts f ! f\r gr\ps1 x 0 ?\ght t su* diff]5ces might be mo/ app>5t at a "t :5 ! entire plant 0 work+ "u ! mo/ adv]se conditions4 ,! bact]ial c\nts1 !re=e1 7 summ>iz$ = ! p]iod f ,decemb] #bc;d1 #aijg1 to ,janu>y #f?1 #aijh1 inclusive1 foll[+ a p]iod ( high turbidity & high bact]ia 9 ! raw wat]1 ) results z foll[s3 ,gr\p4444444 ,a ,b ,c ,d ,maximum44444 #bjd #agh #ahi #bjf ,m9imum44444 #fa #de #fb #eg ,av]age44444 #abj #ajg #ajd #aee ,! foll[+ is a summ>y ( ! turbidity results = a simil> p]iod3 ,gr\p4444444 ,a ,b ,c ,d ,maximum44444 #aj4h #aa4g #h4g #i4c ,m9imum44444 #f4g #d4g #f4b #e4g ,av]age44444 #h4g #h4c #g4b #g4i ,^! numb]s1 ?\gh high1 d n %[ any significant diff]5ces4 ,all ! av]ages = ea* gr\p are less ?an ! l[e/ maximum1 & all are great] ?an ! highe/ m9imum1 & !re=e v>y less ?an d ! individual filt]s1 f o!r causes1 )9 ! diff]5t gr\ps4 ,future ,capacity ( ! ,filt]s4--,an indication ( ! dang]s :i* might affect ! future capacity ( ! filt]s 0 %[n 9 ! above discussion ( ! pres5t capacity4 ,a m effective way ( %[+ ?is 0 obta9$ by a /udy ( ! initial resi/ances or losses ( head 9 ! f\r gr\ps4 ,a filt] kept 9 ideal condition w\ld %[ no increase 9 ?is initial loss ( head f "o run to ! next4 ,if !re is su* an increase1 x means t at "s future "t measures m h]oic ?an ord9>ily us$ w\ld be necess>y to re/ore ! prop] capacity4 ,! av]age initial losses ( head = ! diff]5t gr\ps are plott$ on ! diagram1 ,figure #ac4 ,gr\p ,a %[s an initial loss ( head1 increas+ gradually b slightly dur+ m ?an two ye>s ( s]vice4 ,9 ,gr\p ,b ! initial loss ( head increas$ 9 a mann] simil> to t 9 ,gr\p ,a1 up to ! "t ( ! beg9n+ ( ^! exp]im5ts2 aft] :i* ! increase becomes m rapid4 ,gr\ps ,c & ,d %[ conditions g5]ally simil> to ,gr\p ,b1 ) "s v>iations :i* are self-explanatory4 ,conclusions4--,! quality ( ! efflu5ts f all f\r gr\ps 0 satisfactory1 & no consi/5t diff]5ce 0 app>5t 9 favor ( "o or ano!r me?od ( treatm5t4 ,! me?od pursu$ ) ,gr\p ,c 0 entirely insuffici5t to ma9ta9 ! capacity indef9itely4 ,! me?ods pursu$ 9 ,gr\ps ,b & ,d 7 bo? insuffici5t1 b w\ld h be5 m effective if a great] dep? ( s& _h be5 remov$4 ,! co/s ( treatm5t ( ,gr\ps ,b & ,d 7 less ?an = ,gr\p ,a4 ,x appe>s1 !n1 t a treatm5t :i* w\ld be m economical ?an ! old me?od ( ,gr\p ,a1 & w\ld /ill ma9ta9 ! prop] capacity1 w\ld be "o simil> to t ( ,gr\ps ,b or ,d1 ) ! removal ( a quantity ( s& great] ?an 0 done 9 ! case ( ^! two gr\ps1 b less ?an 9 ! old me?od4 ,illu/ration3 ,figure #ac--;,av]age ,initial ,losses ( ,head = ,gr\ps ,a1 ,b1 ,c1 & ,d = ,successive ,runs4 ,at ! "t ! above results 7 summ>iz$1 x 0 propos$ to proce$ ) ! filt] treatm5t along ! l9es j m5tion$4 ,! writ] did n h an opportunity to /udy ! subsequ5t results1 z he 0 transf]r$ to o!r "w4 ,a /atem5t by ! au?or ( any new facts t may h come to light 9 ?is connection w\ld be ( int]e/4 ,m5tion %\ld be made1 too1 ( ano!r exp$i5t t 0 us$ to ha/5 ! re/oration ( ! capacity ( a filt]1 :i* prov$ to be a mo/ useful "o4 ,! removal ( ! scrap$ s& f a filt] 0 a matt] ( a good _m h\rs' "w1 "u ! mo/ favorable conditions4 ,to get ! filt]s quickly into s]vice aga91 ! dirty s& 9 a numb] ( !m 0 simply scrap$ f ! surface1 heap$ into piles1 & left !re2 !n ! wat] 0 turn$ 91 & ! filt] 0 />t$ aga94 ,?is 0 done ) "s hesitation at fir/ = fe> ! pres5ce ( ! piles ( dirty s& might cause high bact]ial c\nts 9 ! efflu5ts ( ^? filt]s4 ,no su* effect 0 obs]v$1 h[ev]1 ! c\nts be+ entirely normal ?r\gh\t4 ,! writ] subsequ5tly f\nd ! same treatm5t be+ appli$ z an em]g5cy measure at ! ,torresdale plant1 9 ,philadelphia1 &1 ?r\gh ! c\rtesy ( ! ,*ief ,eng9e] ( ! ,bureau ( ,filtration1 0 furni%$ ) ! bact]ial c\nts ?r\gh a numb] ( runs made "u ^! conditions1 & !re1 too1 ! results 7 entirely normal4 ,!re 0 practically no economy 9 ?is me?od1 z ! s& _h ultimately to be eject$ & wa%$4 ,! pil+ up ( ! s& _h ! effect ( r$uc+ ! effective filt]+ area by a small p]c5tage1 ) a correspond+ increase 9 ! actual rate ( filtration1 b ?is 0 ( trifl+ importance4 ,! great b5efit d]iv$ f ! me?od 0 ! sav+ ( "t 9 gett+ a filt] back into s]vice aft] scrap+1 & 9 ?is respect x 0 v valuable4 ,physical ,!ory ( ,purification ( ,wat] by ,sl[ ,s& ,filt]s4 ,! fir/ & mo/ natural conception ( ! action ( a s& filt] is t ! removal ( impurities is effect$ by a /ra9+ action4 ,?is1 ( c\rse1 is p]fectly true z f> z x relates to a l>ge "p ( ! visible impurities4 ,mu* ( ?is is gross en\gh to be int]cept$ & held at ! surface ( ! s&4 ,?is v /ra9+ action is an accumulative "o4 ,aft] a quantity ( susp5d$ matt] ?us /ra9$ out mats itself on ! surface ( ! s&1 x 9 turn becomes a /ra9]1 ev5 bett] adapt$ ?an ! clean s& surface :i* supports x = ! removal ( susp5d$ matt] f ! wat]4 ,?is1 h[ev]1 _c expla9 c]ta9 features ( ! purification ( wat] by a lay] ( s&4 ,! removal ( color1 ! r$uction ( nitrates1 & c]ta9 o!r *anges 9 ! organic cont5t ( ! wat] h = a long "t be5 recogniz$ z due to a bio-*emical action c>ri$ on by c]ta9 bact]ia 9 ! s&4 ,bo? ! /ra9+ action & ?is bio-*emical action are n all-suffici5t = ! explanation ( c]ta9 ph5om5a1 & x has be5 recogniz$1 too1 t s$im5tation 9 ! pores ( ! s& play$ a l>ge "p 9 ! purification process 9 ^? cases 9 :i* x 0 app>5t t ! biological ag5cies 7 n ! *ief ones4 ,9 ! purification ( wat] conta9+ only insignificant quantities ( susp5d$ matt]1 b a relatively l>ge am\nt ( un/able organic matt]1 x w be conc$$ at once t ! *ief factor 9 ! purification is ! nitrification produc$ by ! bact]ia 9 ! upp] lay]s ( ! s&4 ,on ! o!r h&1 ! purification by s& filt]s ( a hypo!tical wat] conta9+ no organic matt]1 b only f9ely-divid$ m9]al matt] 9 susp5sion1 c\ld take place only by ! physical deposition ( ! p>ticles ^u ! s& gra9s4 ,betwe5 ^! two extremes lie all classes ( wat]4 ,9 all problems ( wat] purification by filtration ?r\gh s&1 bo? ^! factors--biological action & s$im5tation--play _! p>ts1 assi/+ & supplem5t+ ea* o!r1 ! relative importance ( "o factor or ! o!r dep5d+ on ! place ( ! p>ticul> wat] 9 "q on ! scale betwe5 ! two extreme conditions j m5tion$4 ,9 ,mr4 ,haz5's pap] on ,s$im5tation#a !re is an int]e/+ developm5t ( ! !ory ( ! removal ( susp5d$ matt] by s$im5tation 9 ! pores ( a lay] ( s&4 ,! factors influ5c+ ?is removal are ! rate ( filtration1 ! effective size ( ! s&1 & ! temp]ature ( ! wat]4 ,= ! conditions at ! ,wa%+ton plant1 x may be assum$ t ! fir/ two ( ^! factors are con/ant4 ,! ?ird factor1 h[ev]1 v>ies ?r\gh wide limits1 & ! obs]vations on ! turbidity removal1 & on ! diff]5t phases ( ! filt] op]ation ( :i* ! turbidity ( ! wat] is a factor "u v>y+ temp]ature conditions1 toge!r ) ! kn[n relations betwe5 hydraulic values & temp]atures ( wat]1 furni%$ good sub/antiative evid5ce t ?is highly-induc$ s$im5tation may be a consid]able factor 9 ! purification ( ! wat] z effect$ at ?is plant4 ,?is temp]ature relation1 briefly /at$1 is z foll[s3 ,= p>ticles ( a size s small t ! viscosity ( ! wat] is ! controll+ factor 9 det]m9+ ! velocity ( _! subsid5ce 9 /ill wat]1 t velocity w v>y directly z 7,t #aj7 _/ #fj1 9 :i* ,t is ! temp]ature1 9 degrees1 ,fahr5heit4 ,t is1 :5 ! temp]ature ( ! wat] is betwe5 #gj deg4 & #hj deg4 ,fahr41 a p>ticle w settle ) twice ! velocity x w\ld h if ! wat] 7 ne> ! freez+ po9t4 ,footnote #a3 ,transactions1 ,am4 ,soc4 ,c4 ,e41 ,vol4 ,,liii1 p4 #ei4 ,! lay] ( s& 9 a sl[ s& filt] may be consid]$ z a v great numb] ( small s$im5tation bas9s communicat+ "o ) ano!r1 n 9 ! mann] ( bas9s connect$ 9 s]ies1 b r1 z ,mr4 ,haz5 has express$ x1 z a long s]ies ( comp>tm5ts connect$ at "o side only ) a passageway 9 :i* a curr5t is ma9ta9$4 ,9 any section ( ! s& lay] !re are areas ?r\gh :i* ! wat] passes ) a velocity mu* great] ?an its mean velocity ?r\gh ! total area ( voids1 :ile !re are o!r areas 9 :i* ! velocity is v mu* less1 p]haps 9 an almo/ quiesc5t /ate f "t to "t1 greatly favor+ ! deposition ( p>ticles1 b ) a g5tle int]mitt5t circulation1 displac+ ! settl$ or p>tly-settl$ wat] & supply+ f ! ma9 curr5ts wat] conta9+ m susp5d$ matt] p>ticles to be remov$4 ,!re is ?us a consid]able p]c5tage ( ! total volume ( voids 9 :i* ! wat] is subject$ to v favorable conditions = s$im5tation1 almo/ p]fect /illness & an exce$+ly small di/ance = a p>ticle to settle be=e x /rikes bottom on ! surface ( a gra9 ( s&4 ,if s$im5tation 7 ! pr$om9at+ factor 9 ! purification ( ! wat]1 we w\ld !n expect to f9d ! foll[+ ph5om5a 9 ! op]ation ( ! filt]s3 ,a m rapid deposition ( a giv5 am\nt ( s$im5t "u summ] temp]ature conditions ?an "u w9t]1 z ! wat] passes ?r\gh ! s&1 & !re=e1 = ! =m] condition ( high] temp]ature3 7a7 ,a great] conc5tration ( ?is turbidity-produc+ mat]ial 9 ! top lay] ( s&1 or1 9 o!r words1 a ?9n] s& lay] to be remov$ 9 scrap+ if all ! dirty s& is remov$2 7b7 ,because ( ! great] conc5tration1 a great] rate ( ,increase ( ! loss ( head1 & consequ5tly %ort] p]iods ( s]vice betwe5 scrap+s2 7c7 ,a high] limit = turbidity 9 ! wat] appli$ to ! filt] to produce a giv5 turbidity 9 ! efflu5t4 ,table #cj--,s]vice ,p]iods & ,scrap+ ,dep?s = ,runs ,end+ ,9 ,v>i\s ,mon?s2 ,cov]+ ,entire ,p]iod1 ,octob] #a/1 #aije1 ,to ,m>* #a/1 #aijg4 ,av]age ,av]age ,mean ,numb] p]iod ( dep? ( s& temp]ature1 ,mon?4 ( s]vice remov$1 9 9 degrees1 filt]s4 9 days4 in*es4 ,fahr5heit4 ---------------------------------------- ------------------ ,janu>y #ac #ge #b4ji #ci ,febru>y #f #ih #b4df #cg ,m>* #e #acj #b4ff #da ,april #h #adi #b4if #ec ,may #g #acj #b4hj #fg ,june #aa #abd #b4ce #gg ,july #ag #gj #b4ab #ha ,augu/ #b #di #a4ih #hj ,septemb] #e #gc #b4dh #gf ,octob] #cg #gj #a4ef #fd ,novemb] #bj #db #j4ha #di ,decemb] #ad #eg #j4id #dj ,! op]ation ( ?is plant dur+ ! fir/ ye> & a half (f]$ an excell5t opportunity = ! /udy ( s$im5tation 9 ! s&1 & ! data 9 ,table #cj are pres5t$ to %[ t c]ta9 ( ! ph5om5a ( filt] op]ation obs]v$ dur+ ?is p]iod seem to be fairly explicable by ! physical !ory ( purification4 ,^! data are giv5 only = ! p]iod ( op]ation be=e ! summ] ( #aijg4 ,at t "t ! exp]im5ts 9 filt] clean+ already describ$ 7 begun4 ,be=e t "t1 :5ev] a filt] _h be5 clean$1 all ! discolor$ s& _h be5 remov$1 leav+ = ! foll[+ run a new s& surface sub/antially 9 ! p]fect condition ( a newly-con/ruct$ filt]4 ,aft] t "t ! exp]im5tal me?ods ( clean+1 & ! new r\t9e adopt$ z a result !re(1 int]f]$ ) ! trac+ ( ! evid5ce z cle>ly z dur+ ! e>li] p]iods4 ,illu/ration3 ,figure #ad--,p]iods ( ,s]vice & ,dep?s ( ,scrap+ = ,runs ,end+ 9 ,v>i\s ,mon?s ,cov]+ ,entire ,p]iod ,oct4 #a1 #aije1 to ,m>4 #a #aijg4 ,table #cj & ! correspond+ diagram1 ,figure #ad1 %[ ! g5]al v>iations 9 ! l5g? ( runs & dep? ( p5etration1 ) ! seasonal temp]ature *anges4 ,! increase 9 l5g? ( runs & quantity ( s& remov$ "u l[ temp]ature conditions is v m>k$4 ,!re is1 h[ev]1 a second>y maximum :i* appe>s1 z ! diagram %[s1 :]e a m9imum = ! ye> w\ld be expect$4 ,?is may h be5 an irregul>ity occurr+ ?is "o ye>1 :i* w n appe> 9 ! av]age ( sev]al ye>s1 & caus$ by "s factor :i* has escap$ obs]vation4 ,a c>eful analysis ( ! data at h& fails to %[ any explanation = x4 ,x may exi/ 9 "s ( ! little-und]/ood biological actions :i* h _! maximum effect "u w>m-wat] conditions1 or x may be due--9 "s obscure way--to ! lib]ation ( air "u ! surface ( ! s&1 accumulat+ ) pressure en\gh to break ! surface at innum]able po9ts1 !reby r$uc+ ! loss ( head & ext5d+ ! p]iod ( s]vice4 ,"s evid5ce 0 obs]v$ po9t+ to ?is explanation1 b x 0 nev] conclusively prov54 ,! g5]al effect ( temp]ature *anges on ! rapidity ( removal ( ! s$im5t & its consequ5t conc5tration 9 ! s& lay]1 h[ev]1 seems pla9ly evid5t4 ,9 corroboration ( ! ?ird po9t m5tion$ 9 ! !oretical consid]ation ( turbidity removal 9 ! filt]s1 ! daily turbidities ( ! filt]$ wat] h be5 classifi$ & summ>iz$ = diff]5t turbidities 9 ! appli$ wat]1 & also = diff]5t temp]atures4 ,! av]age turbidities ?us obta9$ are giv5 9 ,table #ca4 ,table #ca--,turbidity 9 ,filt]$ ,wat] at ,diff]5t ,temp]atures ,produc$ by ,giv5 ,turbidity 9 ,appli$ ,wat]4 ,turbidity ( ,temp]ature1 9 ,degrees1 ,fahr5heit4 appli$ ---------------------------------------- ----- wat]4 #dj #dj - #ej #ej - #fj #fj - #gj #gj ---------------------------------------- --------------- #bj #a4h #a4c #a4b #a4e #a4g #bj-dj #d4h #e4j #c4e #c4j #b4f #dj-fj #g4i #f4i #e4d 444 #c4g #fj-hj #aj4g #g4g 444 444 #e4d #hj-ajj #aa4c 444 444 444 444 #ajj 444 444 444 444 #ab4ja ,footnote #a3 ,= an av]age turbidity #aej4 approximately4 ,! influ5ce ( ! temp]ature ( ! wat] on ! turbidity ( ! efflu5t is v pron\nc$4 ,= a temp]ature ( less ?an #dj deg4 ,fahr4 7actual av]age temp]ature ab\t #ce deg471 ! turbidity ( ! filt]$ wat] = a giv5 turbidity ( ! appli$ wat] is practically twice z great z = a temp]ature great] ?an #gj deg4 7actual av]age temp]ature ab\t #ge deg474 ,?is fact fits 9 v nicely ) ! influ5ce ( temp]ature on s$im5tation4 ,ref]r+ aga9 to ?is temp]ature relation1 z set =? on a previ\s page1 ! hydraulic subsid+ value ( a p>ticle 9 wat]1 ( a size s small t viscosity is ! controll+ factor 9 its d[nw>d velocity1 is approximately twice z great at #ge deg4 z at #ce degrees4 ,we w\ld !n expect to f9d t1 9 ord] to obta9 a giv5 turbidity 9 ! filt]$ wat]1 a raw wat] may be appli$ at #ge deg41 hav+ twice ! turbidity ( ! wat] appli$ at #ce deg41 to produce ! same turbidity2 & fur!r1 z ! turbidity ( ! filt]$ wat]1 = a giv5 temp]ature condition1 v>ies q directly 9 proportion to ! turbidity 9 ! appli$ wat]1 x foll[s t an appli$ wat] ( giv5 turbidity w produce an efflu5t at #ce deg4 ) a turbidity twice z great z at #ge degrees4 ,?is is q 9 accordance ) ! facts obta9$ 9 actual op]ation1 z indicat$ on ! diagram1 ,figure #ae4 ,prelim9>y ,treatm5t ( ! ,wat]4--,! mo/ /rik+ features ( ! bact]ial results giv5 9 ,table #d are1 fir/1 ! uni=mly l[ numb]s ( bact]ia 9 ! filt]$ wat] dur+ p]haps #h or #i mon?s ( ! ye>1 & ! increase 9 numb]s ea* w9t]4 ,?is is %[n cle>ly 9 ! analysis ( bact]ial c\nts 9 ,table #cb4 ,table #cb--;,classification ( ,daily ,bact]ial ,c\nts 9 ! ,filt]$-,wat] ,res]voir ,dur+ ! ,p]iod1 ,novemb] #a/1 #aije1 to ,febru>y #a/1 #aijh4 ,bact]ial c\nt betwe53 ,no4 ( days4 ,p]c5tage ( :ole4 ---------------------------------------- ---------------------- #j & #bj p] cu4 cm4 #bia #da4j #bj & #dj p] #bde #cd4f #dj & #fj p] #fc #h4i #fj & #hj p] #cj #d4b #hj & #ajj p] #bh #d4j #ib4g ---------------------------------------- ---------------------- #ajj & #bjj p] #bi #d4a #bjj & #cjj p] #ac #a4h #cjj & #ejj p] #e #j4g #ejj & #ajjj p] #e #j4g #g4c ---------------------------------------- ---------------------- #ajj4j ,! te/s = ,bacillus ,coli 9 ,table #e %[ results :i* correspond closely to ^!1 ) ?is organism detect$ only infrequ5tly1 except dur+ ! p]iods ( high bact]ia1 & bo? ( ^! are p>allel to ! turbidity v>iations 9 ! filt]$ wat]4 ,^! v>iations foll[ closely ! v>iations 9 ! turbidity & 9 ! bact]ial cont5t ( ! wat] appli$ to ! filt]s4 ,by all /&>ds ( excell5ce1 ! sanit>y quality ( ! wat] dur+ ! great] "p ( ! "t is beyond criticism4 ,9 view ( ! close p>allelism ( turbidity & bact]ial results 9 ! appli$ & 9 ! filt]$ wat]1 x is entirely logical to conclude t1 if ! quality ( ! appli$ wat] c\ld be ma9ta9$ cont9ually ?r\gh ! w9t] z good z1 or bett] ?an1 x is dur+ ! summ]1 !n ! filt]$ wat] w\ld be ( ! p]fect sanit>y quality desir$ ?r\gh\t ! entire ye>4 ,?is 0 all =ese5 t5 ye>s ago1 :5 ,messrs4 ,h]+1 ,full]1 & ,haz5 recomm5d$ auxili>y works = prelim9>y treatm5t ( ! supply1 al?\gh1 z ! au?or /ates1 ^! works 7 n provid$ = 9 ! orig9al con/ruction4 ,z prejudice aga9/ ! use ( a coagulant seem$ to be at ! bottom ( ! opposition to ! prelim9>y treatm5t1 a campaign ( education be>+ on ?is po9t 0 in/itut$1 9 addition to ! sy/ematic /udies ( diff]5t prelim9>y me?ods to :i* ! au?or ref]s4 ,z a result ( ! comb9$ ef=ts ( all ^? int]e/$ 9 promot+ ?is improvem5t1 an appropriation 0 f9ally made = ! "w 9 #aiaj4 ,! coagulat+ plant has s9ce be5 built1 & ! writ] is in=m$ t coagulation 0 tri$ on a work+ scale a %ort "t ago dur+ a p]iod ( high turbidity4 ,a /atem5t ( ! results ( ?is treatm5t on ! purification ( ! wat] 9 ! res]voir sy/em & 9 ! filt] plant w\ld be ( great int]e/4 ,illu/ration3 ,figure #ae-- ,turbidity 9 ,appli$ ,wat]4 ,hydraulic ,replac+ ( ,filt] ,s&4--,! au?or has adopt$ a me?od ( replac+ clean s& 9 ! filt]s :i* w comm5d itself to eng9e]s z conta9+ possibilities ( economy 9 op]ation4 ,! fir/ exp]im5ts 9 ! developm5t ( ?is me?od at ! ,wa%+ton plant 7 c>ri$ out "s ?ree ye>s ago1 :ile ! writ] 0 /ill !re4 ,sub/antially ! same me?ods 7 us$ !n z are describ$ 9 ?is pap]1 b exam9ation ( ! s& lay] by cutt+ v]tically d[nw>d ?r\gh x aft] re-s&+ 9 ?is mann] %[$ su* a p]si/5t t5d5cy t[>d ! segregation ( ! co>se mat]ial z to hold out r disc\rag+ promises ( success4 ,! greate/ degree ( sep>ation seem$ to be caus$ by ! wa% ( ! /ream dis*>g+ s& on ! surface4 ,x 0 obs]v$ t1 ne> ! po9t :]e ! velocity ( ! /ream 0 practically de/roy$1 !re seem$ to be a t5d5cy to sc\r away ! f9e s& & leave ! co>se mat]ial by itself1 & pockets ( ?is k9d 7 f\nd at _m po9ts ?r\gh\t ! s& lay]4 ,! au?or /ates t1 9 ! rec5t treatm5t ( ! filt]s by ?is me?od1 !re has be5 no app>5t t5d5cy = ! mat]ials to sep>ate into diff]5t sizes1 & x is =tunate if ?is "w c be done 9 su* a mann] z to avoid ?is sep>ation entirely4 ,x may be que/ion$ :e!r a c]ta9 am\nt ( segregation ( ! mat]ials w make any practical diff]5ce 9 ! effici5cy ( a filt]4 ,9 all probability ?is dep5ds on ! degree ( ! segregation1 ! quantity ( pollution 9 ! wat] to be filt]$1 ! rate ( filtration1 & ! uni=mity ( me?ods foll[$ 9 ! op]ation1 etc4 ,= an appli$ wat] z excell5t 9 quality z t ( ! ,wa%+ton ,city ,res]voir dur+ favorable summ] conditions1 a consid]able degree ( segregation might exi/ )\t produc+ any dim9ution 9 effici5cy4 ,= a badly pollut$ wat]1 h[ev]1 su* z ! appli$ wat] at ?is plant dur+ c]ta9 w9t] p]iods1 or ! wat] ( a great _m o!r pollut$ supplies1 x might be f\nd t ev5 a slight lack ( homog5eity 9 ! s& might make an appreciable diff]5ce 9 ! results ( filtration4 ,z a result ( ! exp]im5ts h]e9 describ$1 h[ev]1 ?is me?od may be appli$ at o!r plants :]e conditions seem to w>rant x1 ) a l>gely increas$ measure ( confid5ce2 al?\gh1 z 9 ! case ( ! adoption ( any new or radical dep>ture1 t confid5ce mu/ n be p]mitt$ to fo/] contempt ( ! old & tri$ me?ods1 b its op]ation mu/ be wat*$ ) ! utmo/ caution1 until long exp]i5ce %all h demon/rat$ its p]fect suitability & def9$ its limitations4 ,e4 ,d4 ,h>dy1 ,m4 ,am4 ,soc4 ,c4 ,e4 7by lett]74--,x 0 n ! writ]'s orig9al int5tion to ent] into a discussion ( ei!r ! !ory ( wat] purification or ( ! exp]im5tal "w on s& h&l+1 b simply to pres5t ! ma9 results ( op]ation l>gely 9 tabul> =m4 ,he is gratifi$1 h[ev]1 to h ^! sides ( ! "q s ably br\ght out 9 ,mr4 ,longley's discussion4 ,mr4 ,haz5 ref]r$ to ! inf]ior effici5cies ( ! exp]im5tal filt]s = rate /udies 7z %[n 9 ,table #bj7 9 ! removal ( ! ,b4 ,coli f ! wat] te/$4 ,?is inf]iority is really less ?an ! figures 9 ! table w\ld indicate1 z ! te/s = ! exp]im5tal filt]s 7 presumptive only 7z %[n by ! note at ! foot ( ,table #bj71 :ile ^? = ! ma9 filt]s 7 c>ri$ ?r\gh all ! confirmatory /eps4 ,f exp]im5ts#a made by ,messrs4 ,longley & ,baton 9 ! writ]'s (fice1 x w\ld seem reasonable to assume t ab\t "o-half ( ! positive results1 w\ld h be5 elim9at$ _h ! confirmatory /eps be5 tak54 ,9 o!r words1 ! figures %[+ ! numb] ( positive te/s = ,b4 ,coli 9 ,table #bj %\ld be divid$ by two :5 comp>+ !m ) correspond+ ones = ! ma9 filt]s4 ,footnote #a3 ,publi%$ 9 ! ,j\rnal ( ,infecti\s ,diseases1 ,vol4 #d1 ,no4 #c1 ,june1 #aijg4 ,mr4 ,kn[les seems some:at appreh5sive reg>d+ ! me?ods describ$ 9 ! pap] ( re/or+ ! capacity ( ! filt]s by rak+1 & replac+ s& by ! hydraulic me?od1 & yet1 f ,mr4 ,johnson's discussion1 x w\ld seem t ! practice ( rak+ filt]s betwe5 scrap+s _h rec5tly be5 adopt$ at ! ,pittsburg plant4 ,be=e ! practice ( rak+ 0 f9ally adopt$ z a "p ( ! r\t9e filt] op]ation1 ! subject 0 giv5 a great deal ( ?\ght & /udy1 z may be se5 by ref]r+ to ,mr4 ,longley's discussion4 ,! re-s&+ has be5 done by ! hydraulic me?od1 = ne>ly two ye>s1 &1 z f> z ! writ] is able to judge1 ?is me?od has be5 m economical & also m satisfactory 9 e way ?an ! old "o4 ,z ,mr4 ,haz5 /ates1 ?is does n prove t ! hydraulic me?od w\ld be z satisfactory = o!r filt] plants & o!r grades ( s&4 ,! elevat$ s& b9s at ! ,wa%+ton plant fit 9 well ) ?is s*eme1 & save ! exp5se ( "o %ovel+ ( ! s&2 & ! l[ uni=mity coeffici5t ( ! s& is favorable 9 decreas+ its t5d5cy to sep>ate into pockets or /rata ( co>se & f9e s&4 ,! me?od ( wa%+ is also well adapt$ to ?is me?od ( re-s&+1 z ! s& is made v clean 9 its passage ?r\gh ! wa%]s & /orage b9s4 ,! hydraulic me?od ( replac+ s& t5ds to make x clean] /ill1 because any clay :i* may be left 9 ! s& is con/antly be+ c>ri$ away ov] ! weir & out ( ! b$1 to ! sew]4 ,s& replac$ by ! hydraulic me?od is mu* m compact ?an :5 replac$ by o!r me?ods1 & consequ5tly ! dep? ( p5etration ( mud 9 a filt] ?us re-s&$ is less4 ,c>eful te/s ( ! efflu5ts f filt]s :i* h be5 re-s&$ by ! two me?ods h inv>iably %[n ! sup]iority ( ! hydraulic me?od4 ,! exp]im5t ( replac+ s& by wat]1 ref]r$ to by ,mr4 ,longley1 0 n consid]$ a success at ! "t1 & ! me?od 0 ab&on$ = ab\t a ye>4 ,at t "t an attempt 0 made to complete ! re-s&+ ( a filt] :i* _h be5 ne>ly complet$ by ! old me?od4 ,! precaution ( fill+ ! filt] ) wat] 0 n tak51 nor 0 any special device us$ = di/ribut+ ! s&4 ,:5 ?is me?od 0 aga9 tak5 up1 v>i\s exp]im5ts 7 tri$ be=e ! pres5t me?od 0 adopt$4 ,mr4 ,:ipple's rem>ks on ! results f ! op]ation ( filt]s "u w9t] conditions are v int]e/+1 &1 consid]+ 8 /&+ z an au?ority 9 su* matt]s1 !y are wor? c>eful consid]ation4 ,9 ! op]ation ( ! ,wa%+ton plant1 x has always be5 noticeable t ! results 7 mu* poor] 9 w9t] ?an 9 summ]4 ,9 fact1 ne>ly all ! unsatisfactory wat] :i* has be5 deliv]$ to ! city ma9s has be5 suppli$ dur+ ! w9t] mon?s4 ,on ! o!r h&1 ! typhoid dea? rate has always be5 comp>atively l[ 9 cold wea!r4 ,^! facts w\ld seem to indicate t ! wat] supply 0 n responsible = ! typhoid conditions4