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i • • Project No. 014-95262 Page No. 6 adjacent to the former boiler diesel supply pipeline, and from areas previously or currently overlain with spoils from excavation of the former diesel tanks, will be analyzed for Total Petroleum Hydrocarbons as diesel (TPH-D). 13. Drill cuttings will be stockpiled on and covered by visqueene within the fenced area west of the main plant building. Drill cuttings will be segregated based upon field observations. Rinsate generated during decontamination procedures will be drummed and left on-site near the the wastewater treatment facility pending analytical results. Following favorable analytical results the drum contents may be metered into the normal process waste stream for biologic treatment. 14. Equipment used for the advancing of soil borings and the sampling of soils would be decontaminated (steam-cleaned, TSP, lab-grade detergents, etc.) before arriving on-site, between each boring and/or sampling, before leaving the site, or ' as necessary to minimize the chances of cross-contamination. The rinsates from the cleaning would be contained and drummed. The water would be stored on-site pending the results of the chemical analysis and proper disposal by the client with ' the assistance of Krazan & Associates, within 90 days following generation. 15. Up to nine Hydropunch'II sampling points will be placed at various locations at the subject site to assess the distribution of constituents of concern in groundwater. Please refer to the attached map for the proposed Hydropunch`II sampling points. 16. Prior to driving the Hydropunch'II probe with a cone penetration testing (CPT) rig, the existing monitoring wells will be sounded to determine the current depth to groundwater beneath the subject site area. 17. A groundwater sample will then be collected using the Hydropunch'II sampling tool. When positioned below the groundwater surface and locked in place, the sleeve is retracted exposing a section of PVC well screen. Groundwater enters the well screen with no aeration. Once the well screen is filled, accumulated groundwater will be collected using a Teflon bailer. The collected sample will be transferred from the bailer to appropriate sample containers using a bottom emptying device (Teflon check valve and nipple) minimizing loss of volatile constituents. The samples collected will then be preserved in accordance with the analytical protocol. Each sample container will be completely filled allowing no headspace. Following transference, each sample container will be labeled, logged on a Chain-of-custody form, and placed in an ice chest to be kept at V Celsius during transport to the analytical laboratory. Please refer to Appendix A for Standard Operating Procedures (SOPs) for CPT and Hydropunch'II groundwater sampling and also for copies of the CPT contractor's C-57 license and proof of insurance. 18. All groundwater samples will be analyzed for the presence of the following constituents: electrical conductivity, pH, chloride, phosphate and nitrate. In addition, groundwater samples from the vicinity of the on-site wastewater treatment facility will be analyzed for ammonia-N, BOD and oil and grease. Seven Hydropunch'samples will also be analyzed for volatile organic compounds (VOCs) by EPA Method 502.2. KRAZAN& ASSOCIATES, INC. ' Offices Serving the Western United States 95262.We