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apparently not an objective of this phase of the investigation. It appears the consultant intends to evaluate the hydraulic characteristics of the entire site and to identify the potential pathways for off-site migration, both surface and ground water pathways, rather than characterizing the source areas and determining plume boundaries. However, depending upon the outcome of this phase of the investigation, additional source identification and plume delineation tasks may be required. The Navy recognizes that additional work may be required after completion of the interim site investigation in order to complete the RI/FS process. 5) The results of the underground tank program should be discussed in this report, (especially Site SB), including each sites potential to contaminate ground water). The Navy underground storage tank (UST) program and Installation Restoration Program (IRP) are separate programs. However, data from the UST program pertinent to interpretation of the hydrogeology will be used in the interim site investigation. 6) Nearby private wells should be sampled and analyzed for the chemicals of concern. The Navy intends to assess the potential for off-site migration of contaminants through ground water before initiating an off-site well sampling program. 7) The surface water sampling program consists of a monthly sampling of the pump station discharge for VOCs for 6 months, and VOC sampling of five surface water locations four times for VOCs, twice during the wet season and twice during the dry season. Also, the surface water program will include continuous flow monitoring of the pump station discharge and monthly surface water level measurements at the five surface water locations. The surface water locations include two internal drainage sample stations (one associated with the landfill area and one with the fire fighting area), one duck pond station, and two stations in Burns Cutoff, downstream from the pumping station discharge point. I recommend that (1) an additional upstream sampling station be located on Burns Cutoff, upstream of the pumping station discharge to Burns Cutoff, (l) that the chemical analyses also include BTXE, inorganics (sulfate and chloride), specific conductance, TDS, metals, and pesticides, and (3) that the pumping station discharge samples, where possible, be 24- hour flow weighted composited samples. 8