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Closure Summmy Report - October 1997 CAIN ELECTRICAL WORKS 230 North Church Street Lodi, California 1.0. INTRODUCTION In accordance with the request of Mr. Harry Weber of the. Cain Electrical Works, Advanced GeoEnvironmental, Inc., (AGE)has prepared the enclosed Closure Summary Report(CSR) for 230 North Church Street, Lodi, California(the site). The scope of work included advancement of three soil probe borings, collection of soil samples and a grab ground water sample, obtaining laboratory analyses of selected samples, and preparation of this report. The location of the site is illustrated on Figure 1 -Location Map. Significant features on the site are illustrated on Figure 2 -Site Plan. This report was prepared in accordance with San Joaquin County Public Health Services - Environmental Health Division (PHS-EHD) and Central Valley Regional Water Quality Control Board guidelines for investigation of underground storage tank(UST) sites. V 2.0. BACKGROUND 2.1. LOCATION AND DESCRIPTION The site is. located in a commercial area of central Lodi, California(Figure 1). Lockeford Street is located immediately north of the site, a residence is located immediately south of the site, Church Street is located west of the site, and an unoccupied residential property is located east of the site. A single metal-warehouse structure is presently located on the site and is occupied by Cain Electrical Works, a motor and pump repair facility. A slab concrete floor is present throughout most of the structure, the remaining portions of the property are either asphalt-covered or grass-covered. v 22. UNDERGROUND STORAGE TANK REMOVAL It is our understanding that one 350-gallon UST (#39-1327-01) was removed from the site on 21 L, April 1988 by Cain Electrical Works. A fuel dispenser,adjacent to the UST excavation was removed from within the building on the site. A soil sample was collected from beneath the former location of the UST following its removal. Total petroleum hydrocarbons quantified as gasoline(TPH-g)and volatile aromatics(benzene,toluene, ethylbenzene and xylenes: BTE&X)were detected in samples collected at concentrations as high as 2,900 parts per million (ppm, reported as milligrams per kilogram). The analytical results of the soil samples are summarized in Table 1 -Analytical Results of Soil Samples.