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I I , 3 CCMvlISSION RECORDS SHOW THAT WASTEWATER FLOW FROM RESIDENTIAL USERS IS NEARLY 65 PERCEtlT OF THE TOTAL \o'JASTB'/ATER FLOW, THE FLOW VOLUME" INCLUDING INFILTRATIONI INFLOWJ (III)" IS ABOUT 91 GALLONS PER CAPITA PER DAY (GPCD) OR 86,,000 PER HOUSE- HOLD PER YEAR (GPHY) BASED ON A SEWERED POPULATION OF 1J785,,000 AND SEWEPED HOUSE- HOLDS OF 689,,00J IN 1980, SINGLE FAMILY RESIDENCES \"IOULD BE ABOUT 92"QCX} GPY AND fvlJLTIPLE FAMILY RESIDENCES \o'K)ULD BE ABOUT 74JCXXl GPY WASTEWATER FLOW, SINGLE FAMILY RESIDENCES LOCATED IN MUNICIPAlITIES HAVING HIGH III POTENTIAL (HIGHER GROUND WATER TABLE" POOR SURFACE WATER DRAINAGE AND UNSTABLE SOILS) OR \~ICH HAVE MORE PERSONS PER HOUSEHOLD THAN THE AVERAGE (2,6 PERSONS)" WILL HAVE FLOWS IN EXCESS OF 92,,000 GAllONS PER YEAR, IN 1984" Corv'MISSION COSTS TO rvtUNICIPALITIES FOR AN AVERAGE SING- LE F AMI LYRES IDENCE ~ULD BE 0,92 f'1) X $676, OO/M3 ;::: $62, 20/YR FOR TREATMENT \~RKS AND RANGE FROfv1 $7,74 TO $25, 96/YR FOR I NTERCEPTOR USE, THE COST PER QUARTER \'{)ULD RANGE FROM $15,55 TO $22,04 TO A SINGLE FAMILY RESIDENCE" DEPENDENT ON Y~ICH SEV\~R SERV I CE AREA THEY ARE LOCATED IN, A COpy OF AN ANALYSIS OF THE ESTIMA.TED FLOW CHARGES FOR THE CITY OF ~<~EW BR I GKTON FOR THE YEARS 1971-1984 AND THE ACTUAL CHARGES FOR THE YEARS 1971-1983 IS ATTACHED. PLEASE REFER TO TH I S SHEET AND WE WI LL GO THROUGH IT TOGETHER, THE ANALYSIS OF ESTWII\TED CHARGES INDICATES THAT TOTAL ESTIMA.TED SEWER CHARGES HAVE INCREASED ]2,7% PER YEAR SINCE 1971. 2,7% OF THIS ]2,7% IS DUE TO FLOW IN- CREASES, THUS" THE COST INCREASE HAS AVERAGED 10,0% PER YEAR, THE ACTUAL INCREASE IN SEv-JER CHARGES FOR THE PERIOD 1971 THROUGH 1983 HAS AVERAGED 15,4% WITH 5,3% DUE TO FLOW INCREASES RESULTING I~! AN AVERAGE COST INCREASE OF 10,1% PER YEAR, THE INFLATION RATE HAS AVERAGED 8,2% FOR THE PERIOD 1971 THROUGH 1983" THUS" OUR COSTS" DUE PRIMA.RILY TO ADDITIONAL TREATMENT FACILITIES" HAVE IN- CREASED 1. 9% PER YEAR OVER I NFLATION I As INDICATED ON THE BOTT<Jv1 OF THE ANALYSIS" SINCE 1973" 1,,470 BUILDING PERr>lITS HAVE BEEN ISSUED, THIS ACCOUNTS FOR A LARGE PART OF THE INCREASE IN WASTEWATER FLOWS IN YOUR COMMUNITY, THE MAJOR IMPROVEMHITS THAT ARE BEING MADE TO SERVICE AREA t!2 ARE THE CAB