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EXECUTIVE SUMMARY ENVIROSTOR: The Department of Toxic Substances Control's (DTSC's)Site Mitigation and Brownfields Reuse Program's(SMBRP's) EnviroStor database identifes sites that have known contamination or sites for which there may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund;Voluntary Cleanup;and School sites. EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly-contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites. A review of the ENVIROSTOR list, as provided by EDR, and dated 02/27/2007 has revealed that there are 5 ENVIROSTOR sites within approximately 1 mile of the target property. Equal/Higher Elevation Address Dist/Dir Map ID Page PG&E MANUFACTURED GAS PLANT SQ FRANKLIN 1 ACACIA STREE 0- 1/8 W B5 9 Facility Status: Backlog CLOVER MIDDLE SCHOOL SITE 51 EAST BEVERLY PLACE 114- 112 WSW E20 30 Facility Status: Inactive-Needs Evaluation SHELL TANK 315 E 11TH 1/2- 1 SSW 22 34 Facility Status: Refer:Other Agency UNION PACIFIC RAILROAD, FORMER 780 EAST 6TH STREET 112- 1 S 23 35 Facility Status:Active OK CLEANERS#2 18 E 9TH 1/2- 1 SW 24 38 Facility Status: Refer:Other Agency EDR PROPRIETARY RECORDS EDR Manufactured Gas Plants: The EDR Proprietary Manufactured Gas Plant Database includes records of coal gas plants (manufactured gas plants)compiled by EDR's researchers. Manufactured gas sites were used in the United States from the 1800's to 1950's to produce a gas that could be distributed and used as fuel. These plants used whale oil, rosin, coal, or a mixture of coal, oil, and water that also produced a significant amount of waste. Many of the byproducts of the gas production, such as coal tar (oily waste containing volatile and non-volatile chemicals), sludges, oils and other compounds are potentially hazardous to human health and the environment.The byproduct from this process was frequently disposed of directly at the plant site and can remain or spread slowly, serving as a continuous source of soil and groundwater contamination. A review of the Manufactured Gas Plants list, as provided by EDR, has revealed that there is 1 Manufactured Gas Plants site within approximately 1 mile of the target property. Equal/Higher Elevation Address Dist/Dir Map ID Page PGANDE MANUFACTURED GAS PLANT FRANKLIN AND ACACIA STR 0- 1/8 W 8 15 TC1913090.8s EXECUTIVE SUMMARY 6