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• TARb <br /> GROUNDWATER TREATMENT SYSTEM DATA <br /> Thrifty Oil Station#172 7647 Pacific Ave Stockton,CA <br /> Discharge Total/Cum Average IN LET n O U T L E T jug/L), <br /> Totalizer Dische e <br /> DATE Discharge TP1i 8 T E X MTBE TRPH B T E X MTBE LE1' <br /> Reading flow g 4181) PH CAMM�lTS <br /> Raiding (gai(ons) (gFldfiay) (8015M) (8021) (8021) (8021) (8021) (8021) (Mg/L (8021) (8021) (8021) (8021) (8021) (1501) {heli) <br /> (sensor) <br /> 419103 10 93 1141 2 Restarted GW system with new water meter starting <br /> at 10 gallons <br /> 4110103 730 93 834 720 148 000 32 300 31 800 2 260 8 420 1 890 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 898 08 Viso colleted annual samples <br /> 4/17103 1 340 94 444 87 _ 09 <br /> 4/24103 1 490 94 594 21 - 07 <br /> 5!1!03 1 530 94 634 6 - 0 8 Checked for dogs and cleaned pump water lines <br /> 5!8!03 2 730 95 834 171 06 <br /> 5115103 2 920 95 024 27 08 <br /> 5120103 3 711 96 815 158 1 0 shut down system for aws <br /> 5/21/03 3 711 96 815 0 1 0 Restarted <br /> Shut down for mitral calibration reports for LEL&fl <br /> 5122103 3 792 96 896 81 7 230 524 531 20 258 8 810 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 879 1 0 as required by the City of Stockton kept system off <br /> for carbon change <br /> 6120103 3 792 96 896 0 - Restarted system(carbon change on 6118103) <br /> 6/26103 4 352 97 456 93 - 12 <br /> 713103 5,478 98,582 161 - 10 <br /> 717!03 6 434 99 538 239 39 500 6 170 5 360 234 1 880 13 800 <0 5 <0 04 <0 02 <0 02 <0 06 <0 03 888 1 0 PH number was read in the held using Hydac 91 o <br /> agstaf tester <br /> 719103 6 869 99 973 218 - - 10 <br /> 7117/03 8 649 101 753 223 500 807 11 244 58 97 J 1 0 <0 04 <0 02 <0 02 <0 06 <0 03 865 1 2 PH number was read in the field using Hydac 910 <br /> t)igtal tester <br /> 7124103 9 341 102 445 99 1 0 <br /> 7130103 9 732 102 836 65 08 Shut down GW system for carbon change <br /> 8!8!03 9 825 102 929 2 0 estad.d (from 9 732 to 9 825 gal soaking a <br /> dramm9 wit ew carbon anth fresh water) <br /> 8114103 11 081 104 185 209 - 2 3 <br /> 8118103 11 263 104 367 46 <br /> " � 2 3 Shut down system for ows <br /> 8121103 11 263 104 367 0 - 2 2 Restarted <br /> 8127103 11 978 105 082 119 87 100 16 600 12 100 404 6 490 42 700 <0 5 <0 04 14 <0 02 <0 06 <0 03 652 23 <br /> 915103 12 806 1 105 910 92 2 4 IShut doom system for carbon change <br /> 9111103 12 890 1 105 994 - 1 0 System&bit on (from 12 805 to 12 890 gat soaking <br /> 6.draining of new carbon oath fresh water) <br /> 9118103 12 890 105 994 <br /> - 1 5 System still off <br /> 9124103 10 - 59 700 90 12 <0 2 <0 6 16 300 <0 5 <0 04 <0 02 <0 02 099 <0 03 6 56 1 8 Restarted Replaced water meter starting at 10 gall <br /> 9125/03 430 106 414 420 <br /> - 2 36 Found system oft pump broken dawn restarted <br /> LE56um Discharge Rate 5 760 GROUNDWATER DISCHARGE PERMIT LIMITS 100 500 Total BTEX=4 570 05 50 100 1 10% <br /> NOTE Analytical methods are as listed on the column headings unless otherwise noted <br /> 172TA84 GW System Page i of 1 10/8/03 <br />