FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

Subsurface Investigation Report Proposed EL DORADO APARTMENTS DEVELOPMENT South El Dorado Street, Stockton, California 1.0. INTRODUCTION At the request of Ms. Sung Hi Park of ParkCrest Development,Advanced GeoEnvironmental, Inc. (AGE) has prepared this Subsurface Investigation Report for the proposed El Dorado Apartments Development project located on South El Dorado Street, APNs 167-070-02 and -03, in Stockton, California. The scope of work included excavating four shallow trenches, advancement of three soil probe borings, collection and analysis of soil and ground water samples and preparation of this report. The location of the site and its surroundings are illustrated on Figure 1. Trenching and soil boring locations on the site are illustrated on Figure 2. This investigation was performed in accordance with guidelines issued by the Central Valley Regional Water Quality Control Board(RWQCB)for the investigation of underground storage tank (UST) sites. 2.0. BACKGROUND The subject property is located in the south-central portion of the City of Stockton, San Joaquin County, north of the intersection of South El Dorado Street and California Street (Figure 1). Land use of the surrounding properties is recreational (McKinley Park), residential and commercial. The subject site is the former location of a glass production facility which was decommissioned sometime during the early 1970s. The property is currently vacant. 2.1. PREVIOUS INVESTIGATIONS Previous site assessments on the property include: • February 2002 - A geotechnical investigation was conducted at the site by Raney Geotechnical Inc (RGI). During the course of the investigation, soil samples collected from two borings (B4 and B5) were noted as having a "gasoline odor". Copies of boring logs recorded during the February 2002 investigation are included in Appendix A. • May 2002 - Five soil borings (B-1 through B-5) were advanced at the site by Construction Testing & Engineering, Inc. (CTE) to determine the nature and extent of soil possibly impacted by petroleum hydrocarbons. Soil samples collected from three of the five soil borings (B-1, B-2 and B-5) contained concentrations of total petroleum hydrocarbons Advanced GeoEnvironmental,Inc.