ARCHIVED REPORTS_XR0006154 - Laserfiche WebLink

Home Browse Search

TABLE I GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942, 4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA Casing Depth Groundwater LPH Concentration, (µ /g L) _ Well Elevation to Water Elevation Thickness Ethyl- No Date (feet msl) (feet) (feet ms]) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE RW2 05/20/98 676 <14* 08/19/98 15 86 -910 000 100 160 330 800 7,500 1,700 08/19/98 <40* 11/18/98 1620 -9 44 000 110 130 280 510 5,300 95 03/30/99 1430 -754 000 41 74 217 329 5,720 <20 05/05/99 1467 -791 000 63 4 109 263 545 5,380 68 7 08/20/99 1602 -926 000 120 561 236 265 4,740 251 12/06/99 1635 -959 000 72 41 210 2299 2,500 <5 02/29/00 1376 -700 000 17 4 5 28 164 1,400 <1 05/16/00 1390 -714 000 56 14 100 304 1,700 19 09/11/00 1627 -951 000 140 34 160 1152 3,700 <5 12/13/00 16.13 -9.37 000 73 12 100 241 2,700 <2 5 RW3 05/22/90 8 89 3095 -2206 000 16,000 41,000 5,500 31,000 160,000 -- 12/19/90 3302 -2368 061 Not sampled- LPH 01/30/91 33 73 -24 12 098 Not sampled.- LPH 05/02/91 3275 -2347 054 Not sampled- LPH 07116-17/91 33 72 -2449 047 Not sampled- LPH 10/15/91 3527 -25 58 1 10 Not sampled - LPH 01/28/92 3269 -23 70 0 14 Not sampled- LPH 04/30/92 3227 -23 34 006 Not sampled- LPH 08/13/92 3467 -25 50 039 Not sampled- LPH 10/08/92 3536 -2606 056 Not sampled - LPH 02/23/93 3134 -2245 000 4,100 4,300 1,600 8,300 47,000 -- 05/18/93 3002 -21 13 000 19,000 22,000 3,100 17,000 90,000 -- 08/22/93 3060 -2171 000 18,000 22,000 2,800 16,000 110,000 -- 12/30/93 2963 -2074 000 18,000 22,000 2,900 15,000 96,000 -- f 1projectsW394Nnas[erlaplq I200133942gw xis Page 30 of 43