ARCHIVED REPORTS_XR0012039 - Laserfiche WebLink

Home Browse Search

� y PUBLIC HEALTH SERVICES a� SAN JOAQUIN COUNTY - I� ENVIRONMENTAL HEALTH DIVISION or . Karen Fursr, M D , M ??H , Health Officer n`t �`�� _ �� f``�z, �►�� 304 Easr Weller Avenue, Third Floor • Srockron, CA 95 02 209/468-3420 APR 2 3 2_002 E1 i�/,'<k. ' ,_ALTH XZN AND EI] ENDICR 'JAN 7 l � , ,L TOP FILLING STATION - 1428 E MARKT STREET A6 STOCRTON CA 95205-3531 RE Top Filling Station SITE CODE 1294 101 S Wilson Way Stockton CA 95205 San Joaquin County Environmental Health Department(EH) has reviewed Quarterly Monitoring Reports dated July 31, 2000, March 23, 2001, May 14, 2001, August 30, 2001, December 24, 2001 and the .axed copies of the analytical results from the two multi-level wells (MW6 and MW7) which were installed on Septemoer 24, 2001 and sampled December 12, 2001 that was submitted by Advanced GeoEnviron mental, Inc on behalf of the above referenced site and has the following comments '2VW3A. Tree w ata"seor sows the total depth of the well as 4Q feet VW2B is 40 feet aero The well data sheet for VW38 shows the total depth of the well as 63 feet VW3A is 63 feet deep Analytical results on the lab data sheets for these wells have been switched on the Groundwater Analytical Table in the report except for the analyses performed by McCampbell Analytical Inc laboratory 4t fr dot eets and the Chain of Custody forthe i�i-r'Wrd r€tfig ges' Depth to water when the samples were collected was about 38 feet below surface grade (bsg) so VW2H and VW38 should have been dry as reflected by the changes on the well data sheets and the Chain of Custody �jh Ma 1� ggpi,Quarterly Report cpatains well data-sheets and the Chain of Custody for the water camp es,ca�e�with well identification changes again The well data sheet for VW3B indicaies the well was dry and the Chain of Custody has no time of collection for one of the water samples The McCampbell Analytical laboratory data sheets shows non-detect results ror VW3A sample The Groundwater Anaiytical Table to the report shows non detect for VW36 and has the concentrations on the laboratory data sheets as the results for VW3A It is obvious that there is confusion about the identification of the nested vapor wells. The identification of these wells should be clearly marked on the well head Water sample identification on well data sheets and the Chain of Custody must be performed more carefully. The above data must be reviewed, explained and corrected immediately Tne reports show the results of the quarterly groundwater monitoring and sampling events that tools place at this site from June 21, 2000 to August 14, 2001 Results or the sample analyses show methyl-tertiary butyi ether(MtBE) was detected in groundwater samples from wells MW-1, MW-2, M[W- 3, VW-1 B, VW2B, VW1C, VW-2A, VW-3A, and VW313 with concentrations as high as 440,000 gg/l (VW3B on 6121100)_ Benzene, toluene, ethyl benzene, and xylene (BTF-Y) compounds were detected in the groundwater samples from all the wells, with benzene concentrations as high as 39,000 gg/l (VW 1 C on 10/27100) Total Petroleum Hydrocarbons as gasoline (TPH-g) was also detected in all the wells with concentrations as high as 300,000 ug/1 (VW3B on 6121100) Ethylene dibrornrde (EDB), 1,2 Dichlorcethane (1,2 DCA) and Tertiary butanol (TSA) were also detected in ground water samples collected from the site. A Ommica of San Joaquin County Hc3Fth Cate Se—crs