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Kennedy/Jenks Consultants <br /> 1 INTRODUCTION <br /> Stockton Newspapers, Inc. (Stockton Newspapers) requested Kennedy/Jenks Consultants <br /> (Kennedy/Jenks) to perform a Phase II Soil and Groundwater Investigation of the property <br /> generally located within the block bounded by East Market, South Stanislaus, East <br /> Washington, and South American Streets in Stockton, California (subject property). <br /> 1.1 Background <br /> Kennedy/Jenks performed a Phase I Environmental Site Assessment (ESA) of the subject <br /> property for Stockton Newspapers in March 1996. Based on the findings of the ESA, <br /> Kennedy/Jenks recommended that the following areas be investigated for potential impacts <br /> to soil and groundwater by chemicals of concern. Kennedy/Jenks Consultants' findings <br /> and recommendations for further investigation, as outlined in the ESA, are summarized <br /> below. The locations of recommended soil borings are shown on Figure 1. <br /> • Finding #1: A sump associated with a former automotive repair facility remains in <br /> the east central portion of the subject property. A former underground storage tank <br /> (UST) and an associated former gas dispenser are also located at the former <br /> automotive repair facility. <br /> Recommendation: The condition of the sump's drainage system and subsurface <br /> conditions beneath the sump should be assessed with the installation of Soil Boring <br /> SB-1 (Figure 1). Chemicals of concern include petroleum hydrocarbons (PHCs), <br /> volatile organic compounds (VOCs), and metals. <br /> The soil in the immediate vicinity of the former UST and the former gas dispenser <br /> should be assessed for PHCs, benzene, toluene, ethylbenzene, and total xylenes <br /> (BTEX), and total lead. Soil Borings SB-2 and SB-3 will be installed for this <br /> purpose. <br /> • Finding #2: Gasoline and oil USTs were identified near the southwest corner of the <br /> property on the 1950 Sanborn map. No record of the removal of USTs was found. <br /> Recommendation: The potential presence of USTs should be assessed. Soil <br /> samples should be collected in the vicinity of the historical location of the USTs to <br /> determine if the subsurface has been impacted by PHCs, BTEX, and total lead. <br /> Soil Boring SB-4 will be installed to assess the subsurface conditions. <br /> • Finding #3: The first floor of the Cunningham Hotel was previously used for <br /> automobile repair. A roundtable, service pit, and sump are still present. <br /> Recommendation: Further investigation is needed to assess the condition of the <br /> drainage system (if any) associated with the pit and sump, and their potential <br /> impacts to the subsurface. The soil in the immediate vicinity of the pit and sump <br /> should be assessed for PHCs, VOCs, and metals. Soil Borings SB-5 and SB-6 will <br /> be installed to assess these potential impacts. <br /> is\job\96\966070.00\workplan\tezt.doc 1 <br />