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FIELD PROCEDURES Site Safety Plan This plan describes the safety requirements for field work performed at the site. The site safety plan is applicable to personnel of RESNA Industries who perform the field work A copy of the site safety plan is available for reference by appropnate parties during the work. The on site representative of RESNA Industries acts as the Site Safety Officer. Groundwater_SamQling The static water level in each well was measured to the nearest 0.01 foot with a Solsnst electric water-level sounder cleaned with a laboratory-grade detergent and deionized water before use in each well. A clean bailer was used to obtain a sample from the surface of the water in the well for subjective analysis of hydrocarbons The sample was retrieved and examined for floating product, sheen, color, and clarity. Approximately 3 well volumes (approximately 50 gallons) were purged from each well with a stainless-steel electrical submersible pump to allow sampling of representative formation water. The pump, cables, and hoses were cleaned with a laboratory-grade detergent and water before .� use in each well The wells were purged until pH, temperature, and electrical conductivity of the water stabilized, as measured by portable meters calibrated to a standard buffer and conductivity standard. The water level was allowed to recover to at least SO percent of the initial water level. A sample of the formation water then was collected from the surface of the water in each of the wells with the Teflon bailer and slowly transferred to laboratory-cleaned sample containers. The recovered fluids from sampling in each well were directed into type 17- E, steel, 55-gallon liquid waste drums approved for this use by the Department of Transportation. Hydrochlonc acid (or other appropriate chemical) was added to the sample vials as a preservative A sample of the formation water then was collected from the surface of the water in each of the wells with disposable clean Teflon bailer and slowly transferred to laboratory- cleaned sample containers. Sunple Labeling and Handlin Water samples were preserved in laboratory-cleaned, 40-milliliter glass vials that contained concentrated hydrochloric acid as a preservative The water samples were sealed with Teflon-lined lids to eliminate air bubbles The sample containers were labeled in the field with the site identification, monitoring well number and depth, and date, and promptly placed in iced storage for transport to the laboratory. The technician or geologist initiated Chain of Custody 1230201QMR3Q94 FNL