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SOIL AND GROUNDWATER CONDITIONS Petroleum hydrocarbons, probably originating from asphaltic shingle manufacturing, were found beneath the warehouse building foundation. The contaminated soil is currently capped by the warehouse reinforced concrete foundation. The TPH has not reached groundwater and is not likely to impact groundwater in the future due to limited mobility. Widespread nitrate and isolated VOC and fumigant contamination were detected in shallow groundwater at the Site. The nitrates appear to be limited to a narrow, possibly perched 3-5 ft. sand bed about 25 feet deep. Although the nitrate may be partially due to regional application of fertilizers, the concentration exceeds values typically seen in agriculture. Fumigants were only found in two wells along the western site boundary, indicating a possible off-site source. PROPOSED REMEDIATION PLAN The receivership proposes to file a Land Use Covenant restricting the property to industrial and commercial use in accordance with applicable State of California and San Joaquin County requirements. The pollution is unlikely to pose a future threat to regional groundwater or human health if the Site is restricted to industrial uses, the concrete cap is maintained over the site to prevent infiltration of surface water, and future development of site groundwater is prohibited. The deed restriction would allow the receivership to return the property to productive use, which would otherwise become a non-productive Brownfield property. RISK TO HUMAN HEALTH AND THE ENVIRONMENT California Dept. of Public Health Wells located near the site are free of site contaminants. The Jrlauscu deed restriction SLiOUI protect the yUCnC1l l:l :dI uses GLi yr Oui u.vdLC- and human hea;tl- I. NOTICE TO THE HEARING IMPAIRED TDD users can obtain information about the Site by using the California State Relay Service (800) 735-2929 to reach the Public Participation Specialist. Ask them to contact the Central Valley Water Board at (916) 464-3291 regarding the proposed cleanup of the Industrial Drive Receivership Estate in Stockton. FOR MORE INFORMATION Please contact Ann Palmer with the Central Valley Water Board by 19 February 2015 to submit any comments or if you have any questions regarding the proposed project or any of the information presented in this fact sheet. Investigative reports and data pertaining to this site can be found at: http://geotracker.waterboards.ca.gov/profile report.asp?qlobal id=T10000004437 Ann M. Palmer, Water Resource Control Engineer, Site Cleanup Section Central Valley Regional Water Quality Control Board 11020 Sun Center Drive, Suite 200 Rancho Cordova, CA. 95670 Ann.Palmer(o)waterboards.ca.gov (916) 464-4825 If you would like to learn more about the Water Board please visit our website at www.waterboards.ca.gov.