Laserfiche WebLink
r+ �l <br /> �• Date December 7, 1998 <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No 02168 Address 441 Charter Way, Stockton, California <br /> ARCO Environmental Engineer Kyle Christie <br /> Consulting Co/Contact Person Pinnacle/Jay Johnson <br /> Consultant Project No 20805-146 011 <br /> Primary Agency/Regulatory ID No Ron Rowe, San Joaquin County Public Health Services <br /> WORK PERFORMED THIS QUARTER (Third 1998) <br /> 1 Groundwater samples were collected from monitoring wells MW-1 through MW-7 and submitted for <br /> laboratory analysis <br /> 2 Removed soil vapor extraction system from the site <br /> WORK PROPOSED FOR NEXT QUARTER (Fourth 1998) <br /> • 1 EMCON will continue to perform quarterly groundwater monitoring for ARCO The next sampling <br /> event is tentatively scheduled for November 1998 Groundwater samples will be collected and <br /> analyzed for total petroleum hydrocarbons as gasoline (TPHG) using U S Environmental Protection <br /> Agency (USEPA) Method 8015, and for benzene, toluene, ethylbenzene, and total xylenes (BTEX) <br /> and methyl tert-butyl ether (MTBE) using USEPA Method 8020 <br /> Current Phase of Project Monitoring <br /> Frequency of Groundwater Sampling MW-1 through MW-7= Quarterly <br /> Frequency of Groundwater Monitoring Ovarterl <br /> Sample Date August 12, 1998 <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 18 42 to 22 34 <br /> Direction of Groundwater Flow Northeast <br /> Groundwater Gradient 0 011 <br /> 1� <br /> CF01LSG13RDQTRARCO12168Q398 DOC 1 P"WaI ee <br /> Rev 0, 12/7/98 <br />