Laserfiche WebLink
S t <br /> • Date November 22, 2000 " , <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No 6080 Address 85 Louise Avenue, Lathrop, California <br /> ARCO Environmental Engineer Paul Supple <br /> Consulting Co/Contact Person Delta Environmental Consultants, Inc /Jay R Johnson <br /> Consultant Project No D000-339-2 <br /> Primary Agency/Regulatory ID No Lori Duncan, San Joaquin County Public Health Services <br /> WORK PERFORMED THIS QUARTER (Third 2000) <br /> 1 Groundwater samples were collected from monitoring wells MW-1 through MW-3 and submitted for <br /> laboratory analysis <br /> 2 Delta compiled and evaluated groundwater-monitoring data <br /> WORK PROPOSED FOR NEXT QUARTER(Fourth 2000) <br /> 1 Delta will continue to perform routine quarterly groundwater monitoring on behalf of ARCO The next <br /> sampling event is tentatively scheduled for December 2000 Groundwater samples from wells MW-1 <br /> through MW-3 will be collected and analyzed for total petroleum hydrocarbons as gasoline (TPHG) <br /> using U S Environmental Protection Agency (USEPA) Method 8095, for benzene, toluene, <br /> ethylbenzene, and total xylenes (BTEX), and methyl tert-butyl ether (MTBE) using USEPA <br /> Method 8020, and for oxygenates tert-butyl-alcohol (TBA), MTBE, di-isopropyl ether (DIPE), ethyl <br /> tertiary butyl ether (ETBE), and ternary amyl methyl ether(TAME) using USEPA Method 8260 <br /> Current Phase of Protect Monitoring <br /> Frequency of Groundwater Sampling All Monitoring Wells= Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Sampling Date September 8, 2000 <br /> Is Free Product(FP) Present on Site No <br /> FP Recovered This Quarter NIA <br /> Cumulative FP Recovered to Date NIA <br /> Approximate Depth to Groundwater 8 67 to 9 53 feet <br /> Groundwater Flow Direction NIA <br /> Groundwater Gradient Flat <br /> • <br /> PAVILION1MyDocuments\ARC0160801QTRLY120001608OQ300 Delta <br /> 11/22/00 <br />