SITE INFORMATION AND CORRESPONDENCE

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I PUBLIC NOTICE Fact Sheet Pending Case Closure for Leaking Underground Storage Tank Site Advanced GeoEnvironmental, Inc. (AGE), on behalf of the San Joaquin County Environmental Health Department (EHD), invites public comment regarding consideration by the EHD to grant regulatory closure for the leaking underground storage tank (LUST) case at the subject site (Site) identified below: SUBJECT SITE: Site Name: SUPER CENTER MART GeoTracker Global ID No. 70607700802 Site Address: 701 East Charter Way, Stockton CA EHD Site Code: 2512 PUBLIC COMMENT PERIOD: 60 Days —from (15 May 2015 to 15 July 2015) CASE SUMMARY: The EHD and the Central Valley Regional Water Quality Control Board (CVRWQCB), in cooperation with Mr. Swaran Chouhan (property owner), and AGE (environmental consultant) have evaluated soil and groundwater conditions, and potential health concerns at the subject site resulting from an unauthorized release of gasoline from an underground storage tank (UST) system. The unauthorized release from the UST system was discovered in June 1997 during the initial environmental investigation and then again in February 1998 when the USTs were removed and replaced. At the current time there is an active UST system on the Site. Soil and groundwater investigations were conducted from June 1997 to February 2015, to characterize impacted soil and/or groundwater. AGE determined the extent to which the petroleum hydrocarbons have significantly impacted soil and groundwater. From the existing UST locations, groundwater contamination extended off-site toward the northeast approximately 100 feet and toward the southeast. A dual phase extraction system was operated at the site to remove residual soil and groundwater impact from January 2011 to January 2014. Based on operational data and laboratory analytical data an estimated 5,993 pounds of gasoline range hydrocarbons were removed from soil and groundwater during remedial operation. Determining that the site posed a low threat to human health, this site was recommended for closure by the California State Water Resources Control Board Cleanup Fund under California's Low-Threat Underground Storage Tank Case Closure Policy. Potential negative effects of the residual contamination on human health and the environment were evaluated by AGE, and found to be negligible. On the basis of groundwater monitoring and the site characterizations, and the recommendation of AGE, the EHD has concluded that the Site status is protective of the environment and human health for current and future Site use and for adjacent off-site areas. The EHD will submit a Case Closure Summary to the CVRWQCB. Once the EHD has addressed all public comments received, the EHD anticipates issuing a No Further Action Required letter for the subject Site. WHERE TO GET MORE INFORMATION Site information can be obtained from the GeoTracker website at http://geotracker.waterboards.ca.gov/. Upon written request, the Site case file is available for review at the EHD office located at 1868 East Hazelton Avenue, Stockton, California 95205. An EHD file review request form can be obtained from the EHD website at http://www.sjcehd.com. HOW TO PARTICIPATE Interested individuals have the opportunity to learn more about this case and voice concerns regarding its pending closure by submitting comments to Gabriel Gonzalez at the EHD. Mr. Gonzalez can be reached at (209) 468-3442, via e-mail at gagonzalez@sjcehd.com, or in writing at 1868 East Hazelton Avenue, Stockton, California 95205.