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i EV . <br /> 5935EWtH XL5 <br /> MAY 1993 SEWER_DISCHARGE REPORT - <br /> _ C M WEBER ENTERPRISES_ _ — f_ <br /> 141 N EL DORADO STREET STOCKTON CA <br /> AVERAGE WATER DISCHARGE TO SEWER FOR MAY 1993 B 3 GPM —�— <br /> Monitoring/ Time Ground Pumping Measured* Measured* Sampling Constituents Concentrations in micrograms/liter _ <br /> Sampling Water Wells Discharge Total Discharge Sampling Paint <br /> Date System to Sewer to Sewer Sewer Discharge Benzene ITokene Ethyl Total TPHg <br /> Status (gpm) (gallons) benzene xylenes <br /> 312193 ON RW-1 & RW 2 9 0 <br /> 3118/93 ON RW 1 & RW 2 79 209 608 BTEX, TPHg TTO, 16 20 3_3_ 120 510 <br /> Total Cadmium Capper <br /> Lead Nickel Silver Zinc <br /> 418193 ON RW-1 & RW 2 76 441 347 BTEX TPHg 17 42 48 180 660 <br /> 4127193 4 30 PM ON RW 1 &RW 2 7 5 643,729 BTEX TPHg 19 38 67 220 970 <br /> 5111/93 10 30 AM ON RWA &RW-2 735 790,744 BTEX -TPH9 12 42 _ 66 220 830 <br /> (see attached laboratory <br /> report) <br /> 5126193 5 10 PM ON RW 1 &RW-2 9 25** 973,344"** BTEX,TPH9 53 74 270 980 <br /> (see attached laboratory <br /> report) <br /> Notes <br /> Ground water recovery system operation commenced on March 2, 1993 <br /> gpm = gallons per minute <br /> * Flowmeter/totalizer reading <br /> "Pumping (sewer discharge) rate calculated by "bucket and stopwatch method" (average of 6 trials to fill up a 5 gallon bucket) <br /> ***Battery on flow meter dead Battery will be replaced during next site visit Total discharge calculated by averaging pumping rates on 5111 and 5126/93 <br /> BTEX = benzene,toluene ethylbenzene, total xylenes <br /> TPHg = total petroleum hydrocarbons as gasoline <br /> TTO = total toxic organics <br /> Page 1 <br />