Laserfiche WebLink
12 August 2002 <br /> AGE-NC Project No 95-0103 <br /> Page 6 of 11 <br /> visible air bubbles were not present in the vials after filling and capping Water sample containers <br /> were labeled with the sample designation, date, time, and sampler's initials <br /> ' The samples collected were logged on a chain-of-custody form, placed in a chilled container and <br /> transported to McCampbell Analytical Inc (MAI), a California Department of Health Services <br /> (DHS)-certified laboratory, for analysis The effluent samples were analyzed for <br /> ' • Total petroleum hydrocarbons quantified as gasoline (TPH-g) by EPA Method 8015 <br /> Modified, <br /> • Volatile aromatic compounds(VOCs)-benzene,toluene,ethyl benzene and xylene(BTEX) <br /> with methyl-tertiary butyl ether (MTBE)by EPA Methods 8020 or 8260, <br /> ' - Volatile and Semi-volatile compounds (VOC and SVOC) by EPA Methods 6241625, <br /> • Metals Cd, Cr, Cu, Pb, Ni and Zn in accordance with EPA Method 200 Modified and <br /> ' • pH in accordance with EPA Method 150 1 <br /> Influent samples were analyzed for total petroleum hydrocarbons as diesel(TPH-d)by EPA method <br /> ' 8015 Modified, TPH-g and VOCs <br /> ' 2 3 2 Influent and Effluent Monthly Monitoring Procedures <br /> In order to verify and quantify the mass of contamination from each extraction well and to comply <br /> ' with the requirements of the City of Stockton discharge permit,monthly monitoring and sampling <br /> of influent and effluent ground water samples was performed on 30 May 2002 The samples were <br /> collected in laboratory-supplied 40-m1 EPA-approved volatile organic analysis (VOA) vials <br /> ' containing 0 5 ml 18%hydrochloric acid as a preservative and labeled with the sample designation, <br /> date,time,and sampler's initials The samples were subsequently logged on a chain-of-custody form, <br /> placed in a chilled container and transported to MAI for analysis for <br /> ' • TPH-g by EPA Method 8015 Modified and <br /> ' • BTEX and MTBE by EPA Methods 8020 <br /> ' 24 GROUND WATER TREATMENT RESULTS <br /> Between 24 April and 30 May 2002, the pump-and-treat system was in operational for 37 days <br /> ' Utilizing a Blue-White Industries E-2000 flow meter, total flow (totalizer) was recorded between <br /> Advanced GeoEnvironmental,Inc <br /> 1 <br /> 1 <br />