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V� 3 <br /> l� <br /> San Joaquin County <br /> QQu:N Environmental Health Department <br /> DIRECTOR <br /> �o.• �.-c�G Donna Heran,REHS <br /> z. :2 600 East Main Street <br /> . -� <br /> �:. . ' , S :{ Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> - =• Jeff Car'ruesco,REHS,RD] <br /> c4C,fio:R��P Website: www.sfgov.org/ehd <br /> Kasey Foley, REHS <br /> IIS <br /> Phone: (209) 468-3420 <br /> Fax: (209) 464-0138 <br /> 26 January 2010 <br /> Mickey Frantz James Davenport <br /> Heinz USA Cranbrook Associates LLC <br /> 357 6tz' Avenue 4701 Sisk Rd. Suite 101 <br /> Pittsburgh, PA 15222 Modesto, CA 95356 <br /> Subject: Former Heinz USA Site Code: 1390 <br /> 757 W. 11th Street <br /> Tracy, CA 95378 <br /> San Joaquin Count Environmental Health Division EHD is the lead agency providing <br /> q Y (EHD) 9 Yp 9 <br /> the oversight of the investigation and cleanup of releases from underground storage <br /> tanks (USTs) within San Joaquin County. EHD has a contract with the California State <br /> Water Resources Control Board to conduct a UST corrective action program. The above <br /> referenced site was placed in the EHD Local Oversight Program (LOP) in October 1997. <br /> A Phase ll Environmental Site Assessment was conducted in September 1997 by your <br /> consultant ERM. The locations of UST1 and UST2 (USTs permanently closed-in-place) <br /> were investigated. Both the soil and-the ground water samples results documented the <br /> presence'of contamination; total petroleum hydrocarbon as gasoline (TPH-g); benzene, <br /> toluene, ethylbenzene, and total xylene (BTEX); and unknown hydrocarbon. Soil and <br /> ground water was impacted at both UST locations. <br /> The USTs were removed on 18 February 1998. The UST1 location (Site1) had <br /> approximately 200 tons of contaminated soil and over 12,000 gallons of contaminated <br /> ground water removed for proper disposal. The UST2 location (Site2) had <br /> approximately 152 tons of contaminated soil and over 8,000 gallons of contaminated <br /> ground water removed for proper disposal. The post-remedial sample results were <br /> positive for TPH-g and BTEX. Further assessment and remediation was required. <br /> After UST1 and UST2 were removed and contaminated soil was excavated, clean soil <br /> treated Oxygen Release Compound (ORC) was used to fill the excavations. In June , <br /> 1999 several hundred pounds of additional ORC were injected into the groundwater at <br /> Site1 and at Site2. At the Site1 'location, 30 push points were completed into ground <br /> water using an ORC slurry injection. At the Site2 location, 20 points were completed into <br /> ground water using an ORC slurry injection. <br /> Several GeoProbe borings have been completed and eight MWs have been installed on- <br /> site at the two locations. Ground water has been monitored and sampled at the two <br /> locations since 1999. Ground water sample results are been used to evaluate the <br /> effectiveness of the corrective action performed. <br /> 1 <br />