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V <br /> January 16, 2002 <br /> �• WALLACE• KUHL Mr. Steve Jerkins <br /> &ASSOCIATES INC. Crystal Cream &Butter Company <br /> 1013 D Street <br /> Geotechrical Ergineerirg Sacramento, California 95814 <br /> Lrlgineering Geology Quarterly Status Report <br /> i.r <br /> CRYSTAL CREAMERY STOCKTON <br /> Envirome-itai Cons�jltirg 404 West Fremont Street <br /> Stockton, California 95203 <br /> Remediation Services WKA No. 1628.10 <br /> Constr„ction Inspection <br /> i.s <br /> k' <br /> We are submitting this Quarterly Status Report summarizing our recent work Materials 7estir g at 404 West Fremont Street in Stockton, California(Plate 1). The purpose of <br /> L. our work was to comply with groundwater monitoring requirements of the <br /> San Joaquin County Public Health Services, Environmental Health Division. <br /> La Quarterly Activities <br /> w <br /> Groundwater Monitoring <br /> �.. Wallace-Kuhl &Associates, Inc. (WKA) conducted quarterly groundwater <br /> monitoring activities at the site on December 11, 2001. The monitoring <br /> activities performed at wells MWl through MW8 (see Plate 2) included <br /> �- -' measuring the depth to groundwater, checking for visual signs of free <br /> 4. product, purging each well, then collecting a groundwater sample for <br /> laboratory analysis. We measured water levels using an electronic water <br /> b� level indicator and checked for free product using new, clean, disposable <br /> polyethylene bailers. <br /> Prior to sampling, approximately three casing-volumes of water were purged <br /> s from each well. Groundwater samples were then collected using new <br /> polyethylene disposable bailers and decanted into appropriate sampling <br /> containers provided by the analytical laboratory. Each sample was <br /> immediately placed in an ice-chest containing ice and submitted under Chain- <br /> of-Custody documentation to a California Department of Health Services <br /> ,r certified laboratory for analysis of Total Petroleum Hydrocarbons as <br /> gasoline (TPHg),Benzene, Toluene, Ethylbenzene and Total Xylenes <br /> x (BTEX), Tert-Butanol,Methyl tert-Butyl Ether, Di-isopropyl Ether, Ethyl <br /> CORPORATE OFFICE tert Butyl Ether, and Tert-Amyl methyl Ether(oxygenates)using EPA <br /> 3050 Industrial Blvd. Method 8260B. <br /> West Sacramento <br /> CA 95691 The submersible pump was cleaned with a solution of Liqui-nox® and water <br /> rv.w Tel 916.372.1434 before purging each well to minimize the potential for cross-contamination. <br /> ti Fax 916.372.2565 In addition, the wells were sampled in order of increasing concentration <br /> r ROCKLIN OFFICE based on previous sampling results. All water removed during sampling and <br /> 500 Menio Drive, purging operations was sealed in labeled 55-gallon drums and stored on site. <br /> Suite 100 <br /> Rcc6n,CA 95765 <br /> fel 916.435.9722 <br /> Fax 916.435.9822 <br /> i.r <br />