Laserfiche WebLink
Date March 10, 2000 <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 IT Corporation/Mark Capps <br />Consultant Project No 791696 00010000 <br />Primary Agency/Regulatory ID No Ron Rowe, San Joaquin County Public Health Services <br />WORK PERFORMED THIS QUARTER (Fourth 1999) <br />1 Prepared and submitted quarterly groundwater monitoring report for third quarter 1999 <br />2 Performed quarterly groundwater monitoring and sampling for fourth quarter 1999 Groundwater <br />samples were collected from monitoring wells MW -1 through MW -7 and submitted for laboratory <br />analysis <br />3 Received approval for September 29, 1999 Site Assessment Workplan <br />4 Submitted Workplan Addendum (December 20, 1999) proposing deeper conductor casing installation <br />WORK PROPOSED FOR NEXT QUARTER (First 2004) <br />1 Prepare and submit quarterly groundwater monitoring report for fourth quarter 1999 <br />2 IT will continue to perform quarterly groundwater monitoring for ARCO The next sampling event is <br />tentatively scheduled for February 2000 Groundwater samples will be collected and analyzed for total <br />petroleum hydrocarbons as gasoline (TPHG) using U S Environmental Protection Agency (USEPA) <br />Method 8015, for benzene, toluene, ethylbenzene, and total xylenes (BTEX) using USEPA Method <br />8020, and for oxygenates using USEPA Method 8260 <br />Current Phase of Project <br />Monitoring <br />Frequency of Groundwater Sampling <br />MW -1 through MW -7 = Quarterly <br />Frequency of Groundwater Monitoring <br />Quarter) <br />Sample Date <br />December 17, 1999 <br />Is Free Product (FP) Present on Site <br />No <br />FP Recovered This Quarter <br />NA <br />Cumulative FP Recovered to Date <br />NA <br />Approximate Depth to Groundwater <br />20 08 to 23 98 ft <br />Direction of Groundwater Flow <br />Southeast to Northeast <br />Groundwater Gradient <br />0 003 ft/ft to 0 001 ft/ft <br />i <br />CP 1N 1CamPk\Data\Arciuve\Arco121681Qtrly12168Q499 DOC-98Vsg <br />1 IT Corporation <br />03/10/00 <br />