FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

CITY OF TRACY 2 26 February 1991 INSPECTION REPORT TABLE I: Analytical Results - Schulte Road PAH TRH VOC Sample Sample EPA 8100 EPA 418.1 EPA 8240 Number Description mg/kg mg/kg ug/kg RAE1491 Black Soil N.D.* 40,500 N.T. -24+601 RAE1491 Black Soil ; N.T. 25,900 19 - Methylene Chloride- -24+602 110 - Trichlorofluoromethane" I I I � 35 - Acetone" RAE1491 Irrigation N.T. 3,200 N.D. -24+65 Ditch PAH - Polynuclear Aromatic Hydrocarbons TRH - Total Recoverable Hydrocarbons VOC - Volatile Organic Compounds N.T. - Not Tested * - Not Detectable; however, matrix interference resulted in a high detection limit (1.4-8.0 mg/kg) . ** - Detection limits for these compounds and benzene were greater than established health and water quality standards. Although the detection limits were above the health and water quality standards for some of the analyzed compounds, this does not necessarily imply that compounds were present above the health and water quality standards. I recommend that prior to or during the bioremediation process, the soils be analyzed for semi-volatile and volatile compounds using an analytical method with a detection limit of no greater than 0.5 ug/kg. These analyses are required to insure that no BTXE or other compounds are present in the soils at concentrations less than 5 ug/kg. We inspected the site of the proposed land treatment facility adjacent to the Tracy Municipal Airport. Although the City was not supposed to begin construction until the bioremediation plan was approved, the City had already constructed twelve cells. Three of the twelve cells were lined with plastic and contained contaminated soils. The City was constructing more cells to the east of the constructed cells. The soils were covered with plastic and the sandbags had been placed on top. While the sandbags should prevent the plastic from being blown off the top of the soil , the edges were not covered adequately to prevent runoff from entering the cells. The City should inspect the cells and cover the soils to prevent any storm runoff from entering the cells. INSPECTION SUMMARY Analyses of three soil sample from the Schulte Road site did not find any waste which would be classified as hazardous wastes. Volatile organic compounds and high levels of hydrocarbons are present. These materials do pose a threat to water quality should they