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Phase II Site Assessment Report Pacific Towing 1533 South Stockton Street, Lodi, California 1.0. INTRODUCTION At the request of Mr. Bill Maxwell ofMaxwell Properties,Advanced GeoEnvironmental,Inc. (AGE) has prepared the enclosed Phase II Site Assessment Report for the property at 1533 South Stockton Street, Lodi, California(the site). The location of the site is illustrated on Figure 1. Major features on the site and soil probe boring locations are illustrated on Figure 2. The work was performed to assess possible environmental concerns associated with the property. This investigation was performed in accordance with guidelines of the San Joaquin County Public Health Services - Environmental Health Division (PHS-EHD) and of the Central Valley Regional Water Quality Control Board for the investigation of underground storage tank (UST) sites. Background information is summarized in the AGE-prepared, Phase II Site Assessment Work Plan dated 01 February 2 00 1. I.I. BACKGROUND The site is located at 1533 South Stockton Street,in the city of Lodi,San Joaquin County,California. The site is located in a light commercial/industrial area of South Lodi (Figure 1). The property is comprised of a single parcel and is currently occupied by Pacific Towing (Figure 2). In 1986 a 10,000-gallon diesel underground storage tank (UST) was removed from the site by BNC Construction. Two soil samples were collected beneath the UST and analyzed for total petroleum hydrocarbons quantified as diesel (TPH-d). One of the samples contained 1,100 mg/kg of TPH-d. The tank excavation was re-sampled a week later and the results were below detection limits for petroleum hydrocarbons. In June 1993, a waste oil underground storage tank (UST) was removed from the property by Falcon Energy. Soil samples were collected beneath the north and south ends of the UST and the stockpiled soil from the excavation. Analytical results of soil samples indicated only background levels of cadmium, chromium, lead, zinc and nickel in the soil beneath the tank. 1.2. SCOPE OF WORK The scope of work included advancement of four probe borings, collection and analysis of soil and ground water samples and abandonment of the soil borings. Advanced GeoEnvironmental,Inc.