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43011RPI "tS <br /> APRIL 1993 SEWER DISCHARGE REPORT <br /> C M Weber Enterprises, Inc <br /> 141 N EI Dorado Street <br /> Stockton, CA 95202 - <br /> AVERAGE WATER DISCHARGE TO SEWER FOR APRIL. 1993 7.6 GPM <br /> .Monitoring/ <br /> - --- - - - - <br /> Monitoring/ Ground Pumping Measured* Calculated Measured* Sampling Constituents Concentrations in micrograms/liter <br /> Sampling Water Wells Discharge Average Total Discharge Sampling Point <br /> Date System to Sewer Discharge to Sewer Sewer Discharge Benzene Toluene Ethyl Total TPHg <br /> Status (gpm) (gpm) (gallons) benzene xylenes <br /> 3!2193 ON RW-1 & RW-2 9 0 <br /> 3118193 ON RW-1 & RW-2 79 8 5 209,608 BTEX, TPHg, TTO, 16 _ 2_0 _ 33 120 510 <br /> Total Cadmium Copper, <br /> Lead Nickel Silver Zinc <br /> 418193 ON RW 1 & RW-2 7 6 7 7 441,347 BTEX, TPHg17 42 _48 _-_ 180 - 660 <br /> (see attached laboratory - <br /> reports) — — <br /> 4/27/93 ON RW-1 & RW-2 7 5 74 643,729 BTEX TPHg 19 _ -38 67 .---220 970 <br /> (see attached laborory <br /> reports) at - -- <br /> i <br /> !Votes - <br /> Ground water recovery system operation commenced on March 2 1993 -� <br /> gpm = gallons per minute <br /> Flowmeter/totalizer reading --- <br /> BTEX = benzene, toluene ethylbenzene, total xylenes <br /> TPHg = total petroleum hydrocarbons as gasoline _ <br /> TTO = total toxic organics <br /> Page 1 <br />