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Job No. 19447.010 Exhibit A Page 7 of 12 safety and proper handling of the surficial soil during construction, and to reduce health risk to the public and environment following completion of [he project. Near-surface soil samples would be collected within the native soils from twelve shallow test pits. The test pits would be excavated using arubber-tired backhoe. The soil samples would be combined into three composite samples and sent to estate-certified laboratory and analyzed for: • Total petroleum hydrceazbons (TPI-~ as gasoline and methyl tertiary-butyl ether (MTBE); • TPH as diesel and motor oil; • Total oil and grease; • Volatile organic compounds (VOCs); • Semi-VOCs; • Organochlorine pesticides; • Polychlorinated Biphenyls; • Metals (17) listed in the California Assessment Manual. The samples would be analyzed based on a normal turnaround basis. A Preliminary Site Investigation Report (PSIR) would be prepared. The PSIR (6 copies) would document the sampling activities and present [he soil sample test results. 4.0 PRELIMINARY ESA INVESTIGATION -PHASE 1 ESA RECOMMENDATIONS (Phase 2 ESA) The preliminary environmental site investigation (Phase 1 ESA recommendations) would include drilling five borings and collecting twelve soil samples and two grab groundwater samples (using a hydro-punch). Prior to drilling, Consultant will obtain a drilling permit from Zone 7, locate the borings at the site and call USA for underground utility marking. As required by Zone 7, the boreholes would be backfilled with neat cement grout after drilling and sampling. Soil cutting would be spread on the surface and left on-site to be addressed as needed with [he remedial /mitigation plan. Ten of the twelve soil samples and the groundwater samples would be analyzed for petroleum constituents; and the remaining two soil samples will be analyzed for the above suite of surficial soil characterization analyses (to assess the vertical extent of the potential impacted surficial sediments, if present). The soil and groundwater samples would be analyzed based on a normal turnaround basis. A second PSIR would be prepared. The PSIR (6 espies) would document the sampling activities and present the soil and groundwater sample test results. 5.0 REMEDIAL ACTION PLAN /SITE MITIGATION PLAN In the event contaminants are encountered during the preliminary environmental site investigation, a Remedial Action Plan (RAP) or Site Management Plan (SMP) would be prepared for submittal to the City of Pleasanton Hazazdous Materials Department. A Remedial Action Plan would be prepazed in the event elevated contaminant levels aze encountered where remedial activities would be required. A supplementary environmental site investigation [o define the extent of the impacted surficial soils and proposed mitigation measures would be included in the recommendations of the RAP. The selected remedial alternative would be designed to accommodate the proposed parking lot and associated landscaping in order to reduce both remedial duration and costs. Alternatively, a Site Management Plan (SMP) would be prepazed in the event contaminant levels are marginal relative to the California Human Health Screening Levels and/or the Environmental Screening Levels for residential or commercial applications and remedial activities are not required. The SMP would present safety measures and protocols for handling the surficial soils and worker safety during maintenance activities. The scope of the preparation of remedial action plan/site mitigation plan does not include the supplementary environmental site investigation P:119MTOtAce\Contrnct\19Nr.01PCny-Pka mn-imnspCorridor-E.Aibe-ASmP~fees090105.doc