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• r — SECOND QUARTER 1994 SEWER DISCHARGE REPORT GROUND WATER PUMPING SYSTEM WITH DISCHARGE TO SEWER C M WEBER ENTERPRISES 141 N EL DORADO STREET,STOCKTON CA I � McnitorincY Time Ground Pumping Discharve■ Total• Total Dtsch*rassampilEm Point Concentrations in micronimsPoter Sampling Water Welts to Sewer %wmeter to Sower Sewer Discharge Date Svotem Readina IcLallons) I sarneiing Constituents german. Tduww otal TPHO Status (gallons) I Comments bartzerle 3/2/93 ON RW-1 & RW-2 91 0 3/18/93 ON RW-1 & RW-2 7 9 209.508 209 608 8TEX TpHa, TTO 16 20 33 120 510 lTotal Cadnnmi Lead Nickel Silver Zinc 4/8193 ON RW-1 & RW-2 7 6 "1.347 441,34 7 BTEX TPHg 17 42 48 180 660 4127/93 4 30 PM ON RW-1 &RW-2 75 $43,729 643,729 BTEX TPH 19 38 67 220 970 5/11193 10.30 AM ON RW-1 & RW-2 735 790 744 1 790 744 BTEX TPHa 12 42 65 220 830 5126/93 5.10 PM ON RW-1 & RW-2 9 25661(n - 973 344•••1 BTEX TPHg 181 53 74 270 980 heft deed I a/10/931 10 50 AM ON RW-1 & RW-2 8421 1 138,6211 STEX TPHC 23 54 98 340 1 300 flowmeter batteryreplaced at 10 40 am Total 0 a/231931 8 53 AM ON RW-1 & RW-2 8 58 159,8451 1 298468 $TEX MHI 61 95 350 1,300 (f lowmeter ttery replaced at 8 53 am Total = 0 7/6193 3 30 PM ON RW-1 &RW-2 9681 160,628 1 459 094 BTEX TPHa 23 47 87 340 1 100 • 7/20/93 11 IOAMI ON RW-1 & RW-2 8371 333,938 1 632,402 1 STEX TPHa 18 30 71 2801 400 8/3/93 12:05 PM ON RW-1 &RW-2 9091 514,851 t 813,317 BTEX TPH 16 31 79 300 1 400 8117/93 7 35 AM ON RW-1 & RW-2 863 688.092 1 986 558 8TEX TPH 14 22 70 260 1 000 911/93 11 40 AM ON RW-1 & RW-2 gas 879,359 2. 77,825 STEX TPH TTO 21 23 77 270 1 300 Total Cedmiuei Lead Krlret Suver Zinc 9/14193 9 38 AM ON RW-1 & RW-2 802 1 073 760 2 372 226 STEK TPN 14 20 76 250 1 200 1017/93 4.10 PM ON RW-1 &RW-2 724 1,258,715 2.55 7181 BTEX TPH 10/7193 4 17 PM ON flowmeter trerV replaced at 4 17 pm Total = 0 10/7/93 5 15 PM ON RW-1 &RW-2 8 941 398 2.557,5 79 BTEX TPHa 1418 60 230 _ 960 10121/931 11 20 AM ON RW-1 &RW-2 9041 170,916 2 734 097 BTEX TPHa 15 19 59 220 1,000 11/4/931 8 15 AM ON RW-1 & RW-2 9 61 3619.968 2r92 14918TEX TPHg 15 13 61 210 990 11/18/931 11 45 AM ON RW-1 & RW-2 9 76 3,119,701 STEX TPHq 12 54 41 150 650 1212/93 9 05 AM ON RW-1 & RW-2 9 63 3 313 688■■'•"18TEX TPH 7-4 17 43 180 700 12/16193 8 30 AM ON RW-1 & RW-2 771 3,488,183-••■• STEX TPHg 16 14 94 340 —1500 1/7/94 10 12 AM ON RW-1 & RW-2 7 09i 0.....• 3,574,5 10•'•■•i STEX T-PHC 10 83 61 180 890 1120194 3 11 PMi ON RW-1 & RW-2 6981 134,5201 3 809 030 STEX TPHg 82 4 6 48 140 790 3/2/94 3 13 PM ON RW-2 3381 460,3171 4,134,8471 3/2/94 3 17 PM ON RW-2 (flowmetor ttery replaced at 3 17 om Total = 0) 4/5/94 9 25 AM ON RW-2 2341 91,1181 4 225 965 BTEX TPHa, TTO 0106 --j251 631 78 2001 1,200 ITatal Cadrmum g2pM,Lead Kdcai Silver,Znc I i 7/11/94 8 25 AM ON RW-1 & RW-2 591 250 828 a a76 7931BTEX TPH 2 41 61 <O 5 <0 51 <50 Notes I I I I 1) Ground water recovery s tsm operation commenced on 3/2/1993 , I 21 Existing sari venting system ISVE) o ration commenced on 6/23/1993 after replacement of granular activated carbon(GAC) SVE shut down on 9/21/93 pandina carbon r SVE raetartad an 1114/93 after GAC r sce-mm and dnMdovn an 1127/94pmemin GAC re0oceffam SVE raw! nod an 3121/84 atter GAC r scent" I 31a pm gallons per minute 41 BTEX = benzene toluene eth benzene total xyiensa I s 5)TPHg total F2trcleum h rocarbons as esohne I 6) " Flowmeter/totalizer reading f i 11 7) TTO - total toxic organics . 8) ■•Pum i rats calculated b 'bucket and stopwatch method' (average of 6 trials to fill u a 5 adt) on bucke 91 *Battery on flow meter dead Batts will be re ed dun next site visit Total discharge calculated b avers m pumping rates on 5/11 and 5/26/93 i 10) •''•Cis 1 2-Dichloroethene Eth benzene Tnchlomethdone Yin chlonds Na thetene Total X nss Toluene 2-Math na thaiene above laboratorymethod detection Ixrnts However,the TTO concentration is less than the nnit dtscha s limit of 4 57 m /I I 11) "■'•Calculated based on average pumping rates for the referenced month 12 m '•"•■Reset flowmeter Totalizer = O I 1