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SEPTEMBER 1993 SEWER DISCHARGE REPORT ; I <br /> GROUND WATER PUMPING SYSTEM V%1TH DISCHARGE TO SEWER �— <br /> _i_ I C.M WEBER ENTERPRISES _ 1 <br /> 141 N EL DORADO STREET, STOCKTCN, CA <br /> I <br /> AVERAGE WATER DISCHARGE TO SEWER FOR SEPTEMBER 1993 8.5 GPM I <br /> -41 -E4 <br /> I <br /> Monitoring/ Time lGround IPumping Discharge Total ITotal Discharge ISampling Point Concentrations in micro ramsAtter <br /> Semolina Water Wells to Sewer Flowmeter to Sewer _ Sewer Dischar e <br /> Date I system (Qpmi Reading ( ailonsl Sampling Constituents Benzene Toluene Ethvl Totat <br /> Status I ( allonsi <br /> benzene x <br /> 3/2/931 ON RW-1 & RW-2 91 0 <br /> 3/18/93 ON RW-1 & RW-2 79 209 608 209 6081 BTEX TPH , TTO 16 20 33 _ 120 510 <br /> Total Cadmium Copper <br /> Lead Nickel Silver Ztnc <br /> 4/8193 ON RW-1 & RW-2 76 441,3471 441 347 BTEX, TPHg 171 42 48 180 660 <br /> 4/27/93 4 30 PM1 ON RW-T & RW-2 75 643.7291 643,729 BTEX, TPH 19 38 87 220 970 <br /> 5/11/93, 10 30 AMI ON MW-1 & RW-2 7351 7907441 790 744 BTEX TPHg 12 42 65 220 830 <br /> 5/26/931 5 10 PM1 ON RW-1 & RW-2 9 25' • f%-w eter 1 973,344--- BTEX TPHg 18 53 74 270 980 <br /> battery dead( <br /> 6/11,931 10 50 AMI ON RT & RW-2 942 (battery 1,'38 621 BTEX TPH 23 54 98 340 1,300 <br /> r.or■e.e A <br /> 10 40 00 A#,--- <br /> total a 01 <br /> 6123/931 8 53 AMI ON RW 1 & RW-2 858 - 1598451 1,298 4661 BTEX TPH9 61 95 350 1.300 <br /> (battery <br /> toolaeed . <br /> at B 53 AM <br /> total a 0) <br /> '!6/93 3 30 PM1 ON RW-1 & RW-2 B 681 1606281 1,459,094 BTEX TPHq 231 47 87 340 1,100 <br /> 7/20/931 11 10 AMI ON RW-1 & RW-2 8 371 333 936 1 1,632 402 BTEX TPHg 181 30 711 2801 1,400 <br /> 8/3/931 12 05 F`M1 ON RW-1 & RW-2 9091 5148511 1 813,317 HTEX TPHg le 31 79 300 1.400 <br /> 8/17/93 7 35 AMI ON RW-1 & RW-2 8631 688 092 1,98$h58I!BTEX TPH 14 22 70 260 1,000 <br /> 9/1/93 17 40 AM ON RW-1 & RW-2 899' 879359 2,177 825 1BTEX TPH , TTO '•••' 21 231 77 270 1,300 <br /> fees attached laboratvr re0orte) <br /> 9/14/93 9 38 AM ON RW 1 & RW-2 802 1 073 760 2.372.226 BTEX TPW <br /> (lice attached leboratory reocrti 14 20 T6 250 1,200 <br /> Notes I <br /> Ground water recove system o eratlon commenced on 3/2/1993 <br /> Existingsoil ventingoperation commenced on 612311993 after reviacement of activated carbon <br /> m = gallons per minute 1 I 1 <br /> ` Ffowmeter/totalizer reading <br /> ••Pumaing rate caieuiated b "bucket and stopwatch method' (average of 6 trims to fill up a 5 aiion bucket( I 1 <br /> Battery on flow meter dead Battery will be replaced during next site visit Total discharge calculated by averaging pumvin rates on 5/11 and 5126/93 <br /> •"Corrected time of battery replacement Incorrectly reported as 8 53 AM to June 1993 report <br /> "•Cis1,2-Dtchloroethane Trichloroethane, Vinyl chloride, Naothelene above laboratory method detection ltmtts However TTO concentration is less than <br /> permit dischnM2 hmtt of 4 57 mg/1 <br /> BTEX berWene, toiuene,ethylbenzene total xyienes <br /> TPH2 total petroleum hydrocarbons as gasoline I I 1 <br /> TTO = total toxic organics I I <br />