Laserfiche WebLink
, .J S <br /> GD <br /> TECHNICAL WORK PLAN <br /> Soil Vapor SurveyI!J1 <br /> Califor <br /> nix Fuels Facility <br /> ` <br /> 2402 North pacific Avenue <br /> Stockton, California [4 AY 3 01989 <br /> Assessor Parcel Number 125-06x-01 <br /> EINVIRONMENTAL HEAL! <br /> PEOAT/SE RVIC'cr' <br /> INTRODUCTION <br /> Staal, Gardner & Dunne, Inc. (SGD) plans to conduct a soil vapor <br /> survey at the subject facility to determine if subsurface contamination is <br /> present. <br /> BACKGROUND <br /> The site is a card-lock commercial gasoline station operated by <br /> Pacific Pride. The property contains three underground tanks: diesel fuel, <br /> regular, and unleaded. Each tank has a 10,000-gallon capacity. The tanks are <br /> apparently at least 15 years old. They have been integrity tested several times <br /> and they have always tested tight. Inventory reconciliation has always been <br /> correct so there is no known evidence of leakage. The reason for having the soil <br /> vapor survey completed at the property'is to determine that the property is clean <br /> or at least reasonably clean for insurance purposes. <br /> A site map is attached as Plate 1 - Site Map which shows the <br /> locations of underground utilities, underground storage tanks, and nearby streets <br /> and buildings. <br /> As part of this survey, SGD plans to conduct the following tasks: <br /> TASK 1 - PROJECT MANAGEMENT <br /> Coordinate with San Joaquin Local Health District (LHD) in <br /> implementing the assessment of the UST soils. LHD requires the submittal of this <br /> technical work plan for approval prior to initiating the field studies. <br /> TASK 2 - SOIL VAPOR SURVEY <br /> Install a series (approximately 10 to 15) of temporary soil vapor <br /> sampling probes in the subsurface around the UST excavation to analyze soil <br /> vapors for the presence of fuel-related hydrocarbons. The objective of the <br /> survey is to evaluate the soils surrounding the USTs and their appurtenant piping <br /> for the possible presence of fuel-related contaminants. <br />