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<br />.~. <br /> <br /> <br />---.-.---- <br />-----~~_.~_-.:.._.~~'~-- .~ <br /> <br />The raw water SUVA number was below 2 Umg-m in every quarter, which indicates <br />that raw water TOe is mostly non-humic (not amenable to coagulation) in nature. <br />These results are consistent with the jar test results, which show that the raw water <br />TOe is not amenable to coagulation. The GMIW A WTP met the specified TOe <br />removal in every quarter by meeting the raw water SUVA exception criteria. <br /> <br />Production <br /> <br />0" __. _ _ <br />F1GURE-3.2: SDS- T1l111 QUARTERLY RESULTS <br />ENHANCED COAGULAl1ON TESTS WITH FERRIC SULFATE <br />GMIWA WTP, CLARENDON, TX. <br /> <br />Pia nt <br /> <br />T reotmen <br /> <br />,.. <br /> <br />,.. <br /> <br />Woter <br /> <br />The TIHM and HAAS concentrations in the raw water, and in the Simulated <br />Distribution System testing indicate that GMIWA's current method of disinfection <br />(free chlorine as a disinfectant in the treabnent plant and in the distribution system) <br />results in TIHM and HAAS concentrations in excess of those allowed by the Stage 1 <br />DisinfectionlDisinfectant Byproduct Rule. The Simulated Distribution System testing <br />also indicated that these concentrations can be lowered to acceptable levels by using <br />chloramines for disinfection in the distribution system. <br /> <br />RHo _...I'CIlr*~..... dllorWle lor I ___WINTER <br />.lIinItI;lign'-"8h~n""'Clfl~I__ __ __SPRINCI __ <br />-.-~ER <br /> <br />~~lIIlionoaa.pgrb..aI""~ <br />IDrdlllrlec:donltwough................ <br /> <br />'00 <br /> <br />.. <br /> <br />.. <br /> <br />m ~ ~ . ~ ro <br />...... ,.,. ...... Doee ("9'l) <br />---.---.------.-----..--.--....---.- <br />-- -----.,-" <br />RGURE. 2: TOC RESULTS FOR SUMMER QUARTER <br />ENHANCED COAGULATION TEST WITH FERRtC <br />GMlWA WTP, CLARENDON. TEXAS. <br /> <br />10 <br /> <br />\ <br />! <br />I <br /> <br /> <br />i" <br />~4.0 <br />! <br />I: <br /> <br />... <br /> <br />.. <br />.., <br />, <br />IOC.: <br /> <br />...,10aM: <br />.._'" <br />4ll.0 !O.O ...0 7'll.O <br />.......,.........o..(-.'\.) <br /> <br />L~!OO_~_~_..,~_ <br /> <br />FIGURE 3-1: STEP 1 TOe REMOVAL DOSAGE <br />ENHANCED COAGULAnON TEsnNG <br />GMIWA WTP, CLARENDON, TX. <br /> <br /> <br /> <br />Inllov,:;tj',le Approoches.., Procticol Result'; <br />