ARCHIVED REPORTS XR0001885 - Laserfiche WebLink

Home Browse Search

APPENDIX BRISK BASED CORRECTIVE ACTION 'PIER 1 AND TIER 2 ANALYSIS, SITE CLOSURE EVALUATION REPORT FORMER BEACON STATION NO. 695 900 SOUTH CHEROKEE LANE LODI, CALIFORNIA DELTA PROJECT NO. D093-915 1.0 INTRODUCTION Delta Environmental Consultants,Inc (Delta),has been authorized by Ultramar Inc (Ultramar)to review remedial actions conducted at Beacon Station No 695, located at 900 South Cherokee Lane, Lodi, San Joaquin County, California, and to evaluate whether these remedial actions have reduced concentrations of petroleum hydrocarbons in the subsurface to levels which would warrant regulatory closure of this site This report summarizes work conducted at the site and presents our findings Included in this report is a Tn Regional Appendix B including Risk Based Corrective Action (RBCA) analysis indicating that current benzene, toluene, ethylbenzene, and total xylene (BTEX) levels meet the criteria established in the Tier 1 or Tier 2 analysis The analysis was conducted under guidance from the Standard Guide for Risk-Based Corrective Action Applied to Petroleum Release Sites (ASTM, 1995) and Tier 2 Guidance Manual for Risk-Based Corrective Action (Conner, et al , 1995) 2.0 PROJECT ]BACKGROUND E4FORMATION 2.1 Site Descrritntion The site is located along the east side of South Cherokee Lane, approximately one-half mile north of Kettleman Lane (State Highway 12) in Lodi, California (Figure 1) Cherokee Lane was formerly State Highway 99 prior to the highway's relocation approximately 900 feet to the east in the 1950's The site is surrounded by commercial businesses to the north, west, and south; and by a residential area to the east and northeast The site is bordered to the north by a swimming ing pool supply company, to the east by a residential area, to the south by a restaurant, and to the west by Cherokee Lane (Figure 2) The site is approximately 1 6 acres in size and the surface topography is flat and at an elevation of approximately 52 feet above mean sea level Current site improvements consist of the two-story station building with an attached auto repair shop, a large detached warehouse, fuel dispenser islands, two 20,000 gallon underground compartmental fuel storage tanks and associated piping The detached warehouse is currently being leased to a wholesale statuarnum business and automobile detailing shop i RPT001 915