Problems/Comments

UST 1429 is a suspected heating-oil tank believed to have provided fuel to Bldg 1429. Records do not specifically describe this UST, however Bldg 1429 was not connected to the FOL central heating system, and similar guard shacks are associated with heating oil tanks. Building 1429 was demolished in 2009. Limited knowledge of this potential UST indicate it would have been installed in approximately 1963 and would have contained heating oil. In 2010, Site Investigation work at Site UST1429 was conducted in accordance with an ADEC approved Workplan. The investigation found cuts in pavement that were assumed evidence of a UST removal. A Geophysical survey was undertaken and indicated that no tank or associated piping remained. Target analytes at Site UST1429 were identified in the workplan as gasoline-range organics (GRO); diesel-range organics (DRO); benzene, toluene, ethylbenzene, and xylenes (BTEX); and polynuclear aromatic hydrocarbons (PAHs). Soil samples were also screened for trichloroethene (TCE) and tetrachloroethene (PCE). A cumulative risk evaluation was completed for the site by comparing the maximum concentrations of detected analytes to one-tenth of the ADEC Table B-1 value for direct contact in the Under 40 inch zone. No analytes detected were above the one-tenth criteria. The Cumulative Cancer and Non-cancer risk was determined to be not applicable since no analytes are considered Chemicals of Potential concern (COPC).

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Requirements

No associated sites were found.