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f � I <br /> PORT OF STOCKTON <br /> Phone. (209)946-0246 Fax: (209)465-7244 <br /> 183 <br /> December 16, 1999 <br /> Transmitted Via Facsimile 209-464-0138 and U.S. Mail <br /> Ms. Carol Oz, REHS <br /> Environmental Health Specialist ECPIVED <br /> San Joaquin County Public Health Service DEC <br /> Environmental Health Division 2 2 1995 <br /> 304 East Weber Avenue, Third Floor PERM[FNVIRONMENVIRONMENTAL �EA1.TW <br /> Stockton, California 95202 /SERVICES <br /> Subject: Site 5, First Quarterly Monitoring Report <br /> Dear Carol-. <br /> . The Port of Stockton (Port)is pleased to submit the enclosed laboratory analysis and <br /> associated documents for the following quarterly ground water monitoring event which took place <br /> for Site 5 on October 22, 1999. <br /> • On October 22, 1999, Precision Enviro-Tech(PET) Analytical Laboratory field <br /> personnel, Jonathan Le, and Mike Luksic, Environmental Specialist/field Geologist for <br /> the Port of Stockton, sounded and obtained representative ground water samples from <br /> Site 5 (see Appendix A, Figure 1 for site location) wells (MW5-1, MW5-2, and MW5- <br /> 3). Prior to sample collection, each sounded well was purged until the ground-water <br /> parameters of temperature, electrical conductivity, and pH had stabilized and a minimum of <br /> three well-volumes of water had been evacuated. The wells were allowed to recharge to at <br /> least 901/o of their respective static water levels prior to sample collection.. The purged well <br /> ground water was stored in a dedicated 55 gallon drum labeled as purged well water. <br /> • Upon obtaining ground water samples, in-situ water quality screenings for pH, <br /> temperature, and electrical conductivity were measured by field personnel. The <br /> following table summarizes the field in-situ measurements (See Appendix B for the hard <br /> copy of the field in-situ screening). The samples were recovered using clean, disposable <br /> bailers, and were then transferred into 40-m1 VOA vials. All samples were labeled,placed in <br /> an ice chest, chilled on Blue Ice to 4°C, and transported to PET(an FLAP-certified <br /> laboratory)for analysis using appropriate chain-of-custody procedures. The results of the <br /> laboratory analysis are as follows (see Appendix C for the hard copy of the data). <br /> oozsfte3dosi¢ dm <br /> Post Office Box 2089 • Stockton. CA • 05201-2089 • E-mail: portmailestocktonport.com <br /> N Administration Office: 2201 %Nest Washington Street • Stockton. CA • 95203 + Web Page:4wvnnvportofstodaon.com <br />