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OCTOBER 1993 SEWER DISCHARGE REPORT <br /> GROUND WATER PUMPING SYSTEM WITH DISCHARGE TO SEWER <br /> C M WEBER ENTERPRISES <br /> • 141 N EE DORADO STREET, STOCKTON, CA <br /> AVERAGE WATER DISCHARGE TO SEWER FOR OCTOBER 1993 9 GPM 1 <br /> I I <br /> i <br /> Monitorin i Time �Ground Pumping Discharge ' Total* Total Discharge Sampling Point Concentrations in microgra /liter <br /> Sampling Water Wells to Sewer Flowmeter to Sewer Sewer Discharge <br /> Date system ( m) Reading ( ailons) Sampling Constituents Benzene Toluene Ethvl Total TPHg <br /> 1Status ( aiions) Comments benzene lones <br /> 312/931 ON IRW-i & RW-2 ! 91 I 0 <br /> 3/18/931 ON 'RW-1 & RW-2 7 91 2096081 209 6081BTEX TPHg TTO 16 20 33 120 510 <br /> I ITotai Cadmium Conder Lead Nickel Silver Zinc <br /> 4181931 ON IRW-1 & RW-2 7 61 441 3471 -141 3471BTEX TPHg 17 42 48 180 660 <br /> 4/27/931 4 30 PMI ON IRW-1 & RW-2 7 51 643 7291 643,7291BlEX TPHq 19 38 67 220 970 <br /> 5/11/931 10 30 AMI ON IRW-1 & RW-2 ' 7 351 790 7441 790 744 BTEX TPHg 12 42 65 220 830 <br /> 5/26/931 5 10 PM 1 ON I RW-1 & RW-2 1 9 25 ' ' E!(Flowmeter 973 344' ' ' BTEX TPHg18 53 74 270 980 <br /> 1 1 f battery dead! <br /> 6/10/931 10 50 AMI ON RW-1 & RW-2 1 8 421 € 1 138 621 jBTEX TPHg 23 54 98 340 1,300 <br /> 1 I I(flowmeter battery reoiaced at 10 40 am Total = 0 <br /> 6/23/931 8 53 AMI ON IRW-1 & RW-2 1 8 581 1598451 1 298 4661BTEX TPHg 18 61 95 3501,300 <br /> • 1 ! (flowmeter battery reniaced at 8 53 am Total = 0 1 <br /> 7161931 3 30 PM 1 ON RW-1 & RW-2 8 68# 1606281 1 459,094 BTEX, TPHg 23 47 87 340 1,100 <br /> 7/20/931 11 10 AMI ON I RW-1 & RW-2 8 37 1 3339361 1 632 402 BTEX TPH 18 30 71 280 1 ,400 <br /> 8131931 12 05 PMI ON RW-1 & RW-2 9 09 1 514 851 I 1 81 3,31 7 BTEX TPH9 16 31 79' 300 1 ,400 <br /> 8/17/931 7 35 AMI ON IRW-1 & RW-2 1 8 631 6880921 1 986 558 8-1-EX TPHcj 14 22 70 260 1,000 <br /> 9/11931 11 40 AMI ON 1RW-1 & RW-2 I 8 991 879,3591 2 177 825 BTEX TPHg TTO " ' " 21 23 77' 270 1,300 <br /> 1 1 I1 1 !Total Cadmium Copper Leaa Nickel Siiver, Zinc <br /> 9/14/931 9 38 AMI ON RW-1 & RW-2 I 8 021 1 ,073,7601 2 372 2261BTEX TPH9 141 20 76 250 1,200 <br /> 10/7/931 4 10 PMI ON fRW-1 & RW-2 I 7 241 1 256 7151 2 557 1811 <br /> I I !(flowmeter battery replaced at 4 1 7 m Total = 0 <br /> I 4 40 PM l ON i RW-1 & RW-2 1 8 94I 3981 2 557 579 1 BTEX TPHg 14 is 60 230 960 <br /> I I I I 1(see attachea report) <br /> 10/21/931 11 20 AMI ONRW-1 & RW-2 I 9 041 1769161 2 734 0971BTEX TPHg 15 19 59 220 1,000 <br /> I ^I 3 I 1(see attachea report) <br /> i 1 <br /> Notes <br /> Ground water recovery system operation commenced on 3/2/1993 1 <br /> Existing soil venting operation commences on 6/23/1993 after replacement of activatea carbon Soil vent system snut down on 9/21/93 pending carbon reoiacement <br /> gpm = gallons per minute <br /> * Flowmeter/totalizer reading <br /> * 'Pumping rate calculated by bucket and stopwatch method (average of 6 trials to Till up a 5 gallon bucket), <br /> " *Battery on tlaw meter deaa Battery will be replaced during next site visit Total discharge caiculated by averaging pumping rates an 5/1 1 and 5/26193 1 <br /> • ' * ' *Cis! 2-Dichioroethane Trichloroethane Vinvl chloride Napthelene above iaboratory method detection limits However TTO concentration is less than <br /> permit discharge limit of 4 57 mgll ' <br /> BTEX = benzene toluene ethvibenzene total xylenes <br /> TPHg = total petroleum hvdrocarbons as gasoline <br /> TTO = total toxic organics <br />