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ICF KAIS � Kaiser. It is understood that Union Ice Company will be considered the generator of these wastes. ICF Kaiser will assist Union Ice Company in evaluating disposal options after receiving analytical results. It is anticipated that the waste soils and water generated will be non-hazardous; it may be possible to dispose of the purge water to the storm drain, and the soils might be of suitable quality to use as fill at the 1320 West Weber facility. Task 5: Monitoring and Groundwater Sampling of Existing Monitoring Wells Measurement of Ground-Water Elevations - Measurements of depth to ground water will be completed using an electric water-level meter. Measurements will be taken in each well until two consecutive measurements differ by less than 0.01-inches. Measurements will be made in the four on-site wells. Groundwater Sam lin - Groundwater samples will be collected from monitoring wells MW-1, MW-2, and MW-3 on the Site. The locations of the wells are shown on Figure 1. Monitoring well MW-4 was installed to establish a zero contamination limit and aid in the groundwater gradient determination. Due to the lack of detectable concentrations of BTEX or TPH at MW-4, and its location relative to former underground tank sources, no further sampling or analyses of this well are needed at this time. Following purging, water samples will be collected using disposable bailers and transferred to appropriate containers. The samples for BTEX analysis will be collected first and care will be taken to minimize aeration. Sample containers will be laboratory cleaned and prepared with appropriate preservatives. Appropriate chain-of-custody procedures will accompany all samples. The water samples from the wells will be analyzed for the possible presence of TPH extractables (diesel, oil, kerosene) and benzene, toluene, ethylbenzene, and xylenes (BTEX). Task 6: Laboratory Analyses The following methods will be used for laboratory analysis of soil and groundwater samples collected: • TPH Extractables.(diesel, oil, kerosene) - EPA Method 3550 GCFID • BTEX (benzene, toluene, ethylbenzene, and xylenes) - EPA Method 8020 A DHS certified laboratory, American Environmental Network, in Pleasanton, will be used for the analyses of the soil and water samples. A seven-day turnaround time will be used for all the samples. Full QA/QC documentation will be requested (at 15% extra cost) to meet the regulatory requirements for site closure. Task 7: Data Evaluation and Report Preparation A single report will be prepared that describes the results of the investigation and follows the format/content recommendations of the San Joaquin County Environmental Health Division and the Regional Water Quality Control Board (RWQCB). The report will summarize the methods, procedures and results associated with the proposed investigation, and will contain a description of sampling locations and depths, sampling procedures, laboratory methods, laboratory results, and our interpretation of the findings. A groundwater contour map will be prepared. The historical investigations will also be summarized jmfWnioniceVawwn.pro 3