ARCHIVED REPORTS_2019 SOIL MGMT PLAN (JULY-REVISED)

Home Browse Search

Brusca File No. 137-002 BruscaAssociates.com ● P.O. Box 332, Roseville, CA 95661 ● Phone (916) 677-1470 Page 7 March 9, 2018 Murphy Parkway Property Excavation and Materials Management Plan The results of the analytical laboratory testing of the verification soil samples will be reviewed to evaluate whether all solid wastes and residuals were removed from the capped area on the parcel. The laboratory data will be compared to the hazardous waste criteria and screening levels outlined in Section 6.6 of this EMMP. In the event that any of the verification soil samples contain chemicals of concern in excess of these levels, further excavation/removal will ensue in the area(s) of any such samples in accordance with the procedures described above in Section 6.3 and thereafter resampling/retesting will be performed in any such area(s) as described above for verification purposes. 6.5 Testing/Characterization of Removed Waste Materials Following removal and stockpiling of the solid waste materials as described in Section 6.3, the stockpiled waste materials will be sampled and tested. One sample will be collected from each 250-cubic yard section of the stockpile. Prior to the sampling, the stockpile will be accurately measured, and 250-cubic yard sections of the stockpile will be identified and marked. All sampling and sample handling will be performed in accord with standard environmental protocol and will be thoroughly documented. Samples of the stockpiled waste materials will be retrieved in laboratory-provided glass jars and stainless-steel sleeves capped with Teflon tape and plastic end caps. The samples will be immediately placed on ice and transported to a State-certified analytical laboratory under chain-of-custody for analysis. The samples collected from the stockpiled waste materials will be analyzed for the following: • Total Petroleum Hydrocarbons as gasoline, diesel, and motor oil by EPA Method 8015B, with silica gel cleanup • SVOCs by EPA Method 8270C • Polychlorinated Biphenyls (PCBs) by EPA Method 8082 • Title 22 Metals Total Threshold Limit (TTLC) by EPA Method 6010/200.7; Soluble Thresh Limit (STLC) to be analyzed for any metals with TTLC exceeding 10 times the STLC • The eight samples of stockpiled waste containing the highest concentrations of total metals will be analyzed for soluble Title 22 metals by the Waste Extraction Method (WET) by EPA Method 1311 using deionized water (DI) as the extractant • Dioxins and Furans by EPA Method E1613/SW8290 6.6 Evaluation of Removed Wastes for Onsite Reuse The results of the analytical laboratory testing of the removed/stockpiled waste materials will be reviewed to evaluate whether these materials would be classified as hazardous waste and whether these materials are suitable for onsite reuse in engineered fills during site development. To evaluate whether any of the stockpile of removed waste would be classified as a hazardous waste, the laboratory data will be compared to hazardous waste criteria established in the California Code of Regulations (CCR) Title 22, Division 4.5. Stockpiled wastes exceeding these criteria will be removed from the site for proper offsite disposal as described in Section 6.7. Stockpiled waste materials containing chemicals of concern at concentrations below hazardous waste criteria will be evaluated for onsite reuse in engineered fills by comparing the laboratory results to commercial/industrial screening levels established by US Environmental Protection