Laserfiche WebLink
'r, <br /> Z� ~1 <br /> Date September 20, 2000 <br /> L <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No 00548 Address 1612 Hammer Lane, Stockton, California <br /> ARCO Environmental Engineer Paul Supple <br /> Consulting Co/Contact Person Delta Environmental Consultants, Inc 1 Jay R Johnson <br /> Consultant Project No D000-321-1 <br /> Primary Agency/Regulatory ID No Lori Duncan, San Joaquin Coun Public Health Services <br /> WORK PERFORMED THIS QUARTER (Second 2000) <br /> 1 Groundwater samples were collected from monitoring wells MW-1 through MW-6 for laboratory <br /> analysis <br /> 2 Delta Environmental, Inc compiled and evaluated groundwater monitoring data <br /> 3 Installation of the Air Sparge/Soil Vapor Extraction system (ASISVE)was completed <br /> . WORK PROPOSED FOR NEXT QUARTER (Third 2000) <br /> 1 Quarterly groundwater monitoring will continue on behalf of ARCO The next sampling event is <br /> tentatively scheduled for September 2000 Monitoring wells MW-1 through MW-6 will be sampled and <br /> analyzed for total petroleum hydrocarbons as gasoline and for benzene, toluene, ethylbenzene, and <br /> total xylenes, using USEPA Method 8015 modified Groundwater samples will also be tested for <br /> methyl tert-butyl ether (MTBE), di-isopropyl ether, ethyl tert-butyl ether, and tert-amyl methyl ether <br /> using EPA method 8260A <br /> 2 Startup and conduct source test of AS/SVE system <br /> Current Phase of Project Mon itonn IRemediatton <br /> Frequency of Groundwater Sampling Wells MW-1 through MW-6=Quarterly <br /> Frequency of Groundwater Monitoring Quarter! <br /> Sampling Date June 26, 2000 <br /> Is Free Product(FP) Present on Site No <br /> FP Recovered this Quarter NA <br /> Cumulative FP Recovered to Date NA <br /> Approximate Depth to Groundwater 24 41 to 26 53 <br /> Direction of Groundwater Flow East <br /> . Groundwater Gradient 0 0036 ft/ft <br /> C 1ARCO\05481QTRLY1200010548Q200 DOC Delta <br /> 09/20/00 <br />