Laserfiche WebLink
Date May 18, 2_006 <br /> TEICHERT (STOCKTON) QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility Address 103 North E Street, Stockton, California <br /> Consulting Co/Contact Person Stratus Environmental, Inc 1 Jay Johnson, P G _ <br /> Consultant Project No 2001-0103-01 <br /> Primary Agency/Regulatory ID No Harlin Knoll, San Joaquin County Public Health Services/ 1555 _ <br /> WORK PERFORMED THIS QUARTER(First 2006) <br /> 1 Stratus monitored groundwater elevations and collected groundwater samples from wells MW-13, <br /> MW-14, and AS-1 on March 17, 2006 Wells MWA and VW were dry <br /> 2 Stratus compiled and evaluated groundwater monitoring data <br /> 3 Stratus visited the site during the quarter to monitor operation of the bioventing system <br /> 4 Stratus advanced eight CPT borings to depths between 85 and 150 feet below ground surface (bgs) <br /> between January 23 and January 29, 2006 <br /> WORK PROPOSED FOR NEXT QUARTER(Second 2006) <br /> 1 The next sampling event is tentatively scheduled for June 2006 Groundwater samples will be <br /> collected for laboratory analysis from wells MWA, MW-13, MW-14, VW, and AS-1 <br /> 2 Groundwater samples will be analyzed at a state-certified analytical laboratory for total petroleum <br /> hydrocarbons as gasoline (TPHG) by EPA Method SW80156/DHS LOFT Manual, and for benzene, <br /> toluene, ethylbenzene, total xylenes (BTEX), methyl tertiary butyl ether (MTBE), tertiary amyl methyl <br /> ether(TAME), ethyl tertiary butyl ether (ETBE), di-isopropyl ether(DIPS), tertiary butyl alcohol (TBA), <br /> 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB) by EPA Method SW8260B <br /> 3 Stratus will visit the site monthly to optimize system performance and perform maintenance as <br /> warranted <br /> 4 Stratus prepared and submitted a Site Conceptual Model report (dated April 25, 2006) that included <br /> the results of the CPT assessment activities <br /> Current Phase of Project Monitoring/Remediation <br /> Frequency of Groundwater Sampling All Wells=Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Groundwater Sampling Date March 17, 2006 <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 48 05 to 54 10 feet below top of well casing <br /> Groundwater Flow Direction NA <br /> • Groundwater Gradient NA <br /> K ITeichertlStockton-I 031Quartcr1y120061Teichert_1 Q06 DOC STRAWS <br />