ARCHIVED REPORTS_XR0007177 - Laserfiche WebLink

Home Browse Search

Table 4 Historical Groundwater Analytical Results Results in Micrograms per Liter(ug/L or ppb) Time Oil Company-Property 04-049 14000 East Highway 88 Lockeford California WELL DATE ID SAMPLED BENZENE TOLUENE ETHYLBENZENE XYLENES TPHg MtBE (ug/L (ug/L (ug/L u 1L u &)( u 1L MW4 01/19/95 23 ND<O 5 ND<O 5 06 100 05/24/95 07 ND<O 5 ND<O 5 ND<0 5 55 --- 10/04/95 -- 10/04/95 47 85 60 15 180 --- 12/19/95 --12/19/95 65 36 28 41 410 02/28/96 10 ND<O 5 36 05 170 05/23/96 192 ND<O5 ND<O5 ND<O5 142 --- 07119/B6 14 ND<O 5 ND<O 5 ND<0 5 835 --- 1 /19/96 49 06 ND<O 5 07 284 02/26/97 46 10 09 1 4 390 04/16/97 10 ND<O 5 ND<0 5 06 132 - 07/14/97 59 10 ND<O 5 16 197 --- 10/13/97 37 ND<0 5 ND<O 5 08 225 109 01/27/98 443 ND<O 5 86 18 342 126 04/28/98 82 ND<O 5 17 12 340 83 08/13/98 124 ND<O 5 22 07 229 83 10/26/98 187 47 844 72 910 41 2 01/27/99 560 15 248 76 660 99 04/26/99 300 39 151 71 1810 258 07/14/99 352 30 214 11 1 1 810 185 11/24/99 193 66 103 174 886 175 02/17/00 91 8 12 555 el 760 101 06!01/00 78 ND<O 5 47 06 187 93 08/18/00 10 ND<O 5 ND<O 5 ND<1 5 79 36 11/04/00 249 11 189 12 277 ND<50 01/11/01 154 109 59 289 155 16 04/27/01 051 ND<0 5 ND<O 5 ND<1 0 ND<50 ND<O 5 1 08/20/01 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<50 11 11/28/01 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<1 0 1 0 03104!02 ND<O 5 ND<O 5 ND<O 5 ND<1 0 ND<50 07 05/16/02 ND<0 5 ND<0 5 ND<O 5 ND<1 0 ND<50 16 07/25/02 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<50 15 11/12/02 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<50 ND<O 5 01/16/03 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<50 ND<O 5 05/15/03 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<50 ND<O 5 07/24/03 ND<O 5 ND<O 5 ND<0 5 ND<1 0 ND<50 ND<O 5 10/20/03 ND<O 5 ND<0 5 ND<O 5 ND<1 0 ND<50 ND<0 5 01/05/04 ND<O 5 ND<0 5 ND<0 5 ND<1 0 ND<50 ND<0 5 04/01/04 ND<O 5 ND<O 5 ND<O 5 ND<1 0 ND<50 ND<O 5 07/23104 ND<O 5 ND<O 5 ND<O 5 ND<1 0 ND<50 ND<0 5 10/04104 ND<0 5 ND<0 5 ND<0 5 ND<1 5 ND<50 ND<O 5 NOTES ug1L=micrograms per Liter ppb=parts per billion TPHg=Total Petroleum Hydrocarbons as gasoline MtSE=Methyl tert-Butyl Ether by Method 8020 through 4126199 by 8260 thereafter 1 ND=Not Detected at or above the reported detection limits NS=Not Sampled MCL's=Maximum Contaminant Levels for California drinking water reported by the California Department of Health Services `Tale 22 California Code of Regulations as of September 12 2003 I '=Elevated reporting levels are due to high concentration of non-target analytes requiring sample dilution 1) Monitoring well MW-5 went dry during purge on 05/16/02 and did not recharge 2) Well was reportedly dry during gauging on 10/20/03 115/04 and 411104 3) Water levels dropped 0 35 within monitoring well MW-10 following initial gauging of site wells The well was not sampled on 10/20/03 due to ' an insufficient amount of water in the well 4) Grab sample 5) Insufficient amount of water to sample well 6) Sample chromatogram does not match the standard gasoline chromatogram ' I\Time Od\Lockeford\TablesNSCM&Asmt Tbls As Page 4 of 10