SITE INFORMATION AND CORRESPONDENCE_FILE 2

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►� RECEIVED 1117 Lone Pa'"Avenue ATC Suite 201B MAR 12 2014 Modesto, CA 95351 Shaping the Future Phone +1 209 579 2221 ENVIRONMENTAL HEALTH PERMIT/SERVIMCES PUBLIC NOTICE Date March 11, 2014 Geotracker ID T0607700329 Subject Site Name: U-Haul Store#70950 LUSTIS Case#: 390335 LOP Site Address: 2701 N. Wilson Way LOP Case#: 1772 LOP Site CSZ Stockton, CA 95205 Public comment March 12, 2014 Public comment May 16, 2014 period begins: period ends: FACT SHEET On behalf of the San Joaquin County Environmental Health Department (SJCEHD), Cardno ATC invites public comment regarding SJCEHD's consideration to grant regulatory closure for a leaking underground storage tank (LUST) case for the above-identified site (Site). In 1990, the Site's original single-walled underground storage tanks (USTs) and associated piping were removed. A total of four USTs were removed from the site, three had been utilized for fuel, and one for waste oil. During removal of the USTs, it was discovered that petroleum hydrocarbons, including gasoline, had been released into the soil underlying the UST system. In January 2000, SJCEHD directed the investigation of the impacted soil and groundwater. After several years of investigating, it was estimated that approximately 34,700 pounds of petroleum hydrocarbons had been released into the subsurface. It was also determined that the petroleum hydrocarbon mass migrated a relatively short distance from its original release point to just beyond the subject property's borders and beneath the neighboring properties to the west, south, and east. During the subsequent years, an active remediation system utilizing several different technologies was installed. This system was operated until it was no longer economically feasible to continue, but it was estimated that approximately 32,000 pounds of petroleum hydrocarbons had been removed from the subsurface during its operation, thereby dramatically reducing the size and concentration of the contaminant plume. Based on scientific study of natural degradation of petroleum I Hydrocarbons at other petroleum hydrocarbon release sites and the subject site, it appears that the estimated 2,700 pounds of residual petroleum hydrocarbons will continue to degrade over time. Recently, Cardno ATC reviewed and evaluated the human health and/or environmental threat represented by the residual petroleum hydrocarbon that remain in the subsurface and concluded that the residual does not represent a present or future threat to human health or the environment. Consequently, the SJCEHD submitted a Case Closure Summary to the Central Vallev RPoional Water Qi,ality Control Roard (P.WOCg) Onr the RWQCB concurs with the SJCEHD's closure recommendation and the wells associated with the Investigation have been destroyed, the SJCEHD intends to issue a "No Further Action Required" letter for the subject site. WHERE TO GET MORE INFORMATION Information about the investigation is available on the GeoTracker website at http://geotracker.waterboards.ca.gov/. Upon written request, the Site's case file is also available for review at the SJCEHD office located at 1868 East Hazelton Avenue, Stockton, California 95205. An SJCEHD file review request form can be obtained from the SJCEHD website at http://www.s cehdcom/docs/Public%20Records%2ORelease%20APP.pdf. HOW TO PARTICIPATE Any interested individual has the opportunity to learn more about the case and the pending closure by submitting inquiries/comments to Ms. Angelica Sandoval Marin at the EHD within 60 calendar days, by May 16, 2014. Ms. Marin can be reached by phone at (209) 468-2807, via Email at amarin(c�sicehd.com, by fax at (209) 468-0341, or in writing at 1868 East Hazelton Avenue, Stockton, California 95205. Australia • Belgium • Canada • Ecuador Germany Indonesia • Italy • Kenya New Zealand • Papua New Guinea • Peru Tanzania United Arab Emirates United Kingdom • United States • Operations in 85 countries