Laserfiche WebLink
ACTON <br /> MICKELSON <br /> van DAM, INC. <br /> - _ h Consulting Scientists, Engineers,and Geologists <br /> L <br /> 3 l� <br /> November 4, 1994 <br /> Mr Kenneth Earnest <br /> Ultramar Inc j <br /> 525 West Third Street <br /> Hanford, California 93230 19005 1017 <br /> Subject October 1994 Self-Monitoring Report for Beacon Station #494 <br /> 2185 East Fremont Street, Stockton, California <br /> Dear Mr Earnest <br /> Acton • Mickelson • van Dam, Inc (AMV), prepared this Self-Monitoring Report for Ultramar <br /> Inc (Ultramar), as required by the provisions of the City of Stockton Self-Monitoring Program <br /> for discharge to the sanitary sewer This report presents the results of measurements and <br /> analyses during the period from September 22 through October 27, 1994 Included in this report <br /> . is a summary of the ground water extraction system performance as monitored during routine <br /> operation and maintenance activities <br /> Operation of the ground water extraction system during the reporting period resulted in no <br /> violations of the waste discharge requirements <br /> Compliance Evaluation Summary <br /> During the reporting period, the ground water extraction system discharged 11,366 gallons, for <br /> an average of 325 gallons per day The cumulative volume of ground water discharged as of <br /> October 27, 1994, was 119,396 gallons <br /> Per the requirements outlined in the Self-Monitonng Program sampling schedule, ground water <br /> extracted at the site (Figure 1) by continuously pumping monitoring well MW-3 was sampled <br /> twice during the reporting penod for laboratory analysis of benzene, toluene, ethylbenzene, and <br /> xylenes (BTEX) and total petroleum hydrocarbons as gasoline (TPHg) Analytical results for <br /> samples collected on October 10 and 27, 1994, indicated concentrations of TPHg to be <50 <br /> micrograms per liter (µg11) for both sampling events The concentration of dissolved benzene <br /> was < 50 µg11 on October 10 and October 27, 1994 Enclosure A contains copies of the <br /> laboratory analytical reports and chain-of-custody forms <br /> ]rplool gnig <br /> 4511 Golden Foothill Parkway,Suite 1 (916)939-7550 <br /> El Dorado HMIs, California 95762 Fax(916)939-7570 <br />