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rr � r r r r r � r rr r rr r■ TABLE 0 GROUNDWATER TREATMENT SYSTEM DATA Thrifty Oil Station#172, 7647 Pacific Ave,Stockton CA Discharge Totallcum Average I N L E T u 1L 0 U T L E T u Totaltzer Dtscharge TRPH LEL CQMMEfJTS DATE Discharge TPHFlowg 8 T E X MTBE 8 T E X MTBE Reading (gallons) aVda (8015M) (8021) {8021) (8021y (8021) (8021) (4018L) {8021) (8021) {802t) (8021) (Ba21) (150 1) sensor 419103 10 93 114 - - - - _ 1 20 estarted GW system van,new water meter starting at 1 gallons 4110103 730 93 834 720 148 000 32 300 31 B00 2 260 8 420 1 890 <05 <0 04 <0 02 <0 02 <0 06 <0 03 898 080 ase collected annual samples 4117103 1 340 94 444 67 - - - - - 090 4124103 1 490 94 594 21 070 511103 1 530 94 634 6 0 80 checked for clogs and cleaned pump water Ines 518103 2 730 95 834 171 060 5115103 2 920 96 024 27 080 5120103 3 711 96 615 158 ' _ - - 100 Shut down system for OWS 5121103 3 711 96 815 0 100 Restarted Shut down for nNal calibration reports for LEL 6 flow as 5/22103 3 792 96 896 81 7 230 524 531 20 258 B 810 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 8 79 1 00 recluaed by the City of Stockton kept system off for carbon change 6120103 3 792 96 896 0 - - - Restarted system(carbon change on 611 V03) 6126103 4 352 97 456 93 1 20 713103 5 478 98 582 161 1 00 717/03 6 434 99 538 239 39 500 6 170 5 360 234 1 680 13 800 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 888 1 oo pH number was read in the field using Hydac 910 Digital tester 719!03 6 869 99 973 218 100 7117103 8 649 101 753 223 500 807 11 244 58 97 J 10 <0 04 10 02 <0 02 <0 06 <0 03 865 1 20 pH number was read in the laid usnp Hydac 910 Dgdal [ester 7124103 9 341 102 445 99 - - - - 1 00 7130103 9 732 102 836 65 - 080 shut dawn GW system for carbon change 818103 9 825 102 929 - 2 00 Restarted (from to 9 325 z gal soa g&dranmg o new carbon with fresh water 8114103 11 081 104 185 209 230 8118/03 11 263 104 367 46 - 2 30 Shut down system for QWS 8121u0 11 263 104 367 0 _ _ 220 Restarted 8127103 11 978 105 082 119 87 100 16 600 12 100 404 6 490 42 700 <0 5 1004 14 <0 02 <0 06 <0 03 652 230 915103 12 806 105 910 92 - _ - - - - - - - 2 40 Shut down system for carbon change 9111103 12 890 105 994 - _ system still on (from 12 806 to 12 890 gal soakings 9118!03 12 890 105 994 1 00 drammg of new carbon with fresh avatar) 1 50 System still off 9124103 10 - - 59 700 90 12 <0 2 <0 6 16 300 <0 5 <0 04 <0 02 <0 02 0 99 <0 03 1 6 56 1 80 Restarted Replaced water meter starting at 10 gall 9/25103 430 106 414 420 - - - - - - 236 Found system off pump broken down restarted 1012103 7 180 113 164 964 2 38 I 7 970 113 954 113 3 85 Shut down system for carbon change 3 8 420 114 404 75 1 26 Restarted(from 7 970 10 8 420 gal soaking 8 craning of new carbon with fresh water) 3 8 650 114 634 230 22 400 4 500 4 920 193 2040 '4611152 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 56 1 86 3 9 930 115 914 183 1 20 12 870 118 854 420 2 08 20 160 126 144 1 215 2 36 3 22 430 128 414 324 - - 2 63 Shu[tlawn system for carbon change 323280 129264 121 1 80 Restarted(from 22 430 to 23 280 gal soakng 8 dranmg of new carbon wM fresh water) 3 23 390 129 374 110 1 118 000 2 850 16 900 2 600 17 700 `2971169 <0 5 <0 04 097 <0 02 Co 06 <0 03 7 67 1 38 172TAB4 GW System Page 1 of 3 ZWO05