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The sample from piping #2 showed 11 . mg/kg for total <br /> volatile hydrocarbons . <br /> 4 . Laboratory that will collect soil sample: <br /> F. G. L. Environmental <br /> 2500 Stagecoach Road <br /> Stockton, Ca . <br /> 5 . Re-Excavation and re-sample steps : <br /> We are proposing to re-excavate the west end of tank 2 <br /> of the original excavation with a backhoe to a depth of <br /> 12 feet , the original sample was taken at a depth of <br /> 10 feet . At this depth of 12 feet we will collect one <br /> soil sample at the bottom and one soil sample in the side <br /> wall . All excavated soil will be placed on 6 mil plastic <br /> and covered with same . One soil sample will be taken of <br /> this pile at the same time as the other samples . The <br /> hole will be barricaded . <br /> We are also proposing to re-excavate the #'2 piping area <br /> of the original excavation with a backhoe to a depth of <br /> 3 feet , the original sample was taken at a depth of 1 foot . <br /> At this depth of 3 feet we will collect one soil sample at <br /> the bottom and one soil sample in the side wall . <br /> All excavated soil from this area will be placed with, <br /> and in the same manner as soil taken from tank #2 . The <br /> results will determine the next step . At the time of <br /> soil testing we will also take a soil sample of the pile <br /> of original excavated dirt to determine condition. <br /> Should the sample from the holes be clean along with the <br /> excavated soil , the soil will be returned . <br /> Should the holes be clean and the soil not clean , hopefully , <br /> the sample result levels are low enough to allow aeration <br /> of the excavated soil on site under permits , guidelines , <br /> and direction of the San Joaquin County Air Pollution Dept . <br /> If the level of contamination show too high for aeration, the <br /> soil will be transported to a proper hazard waste facility <br /> for disposal . If the soil is removed from the site, it will <br /> be transported under proper licensure. Any manifests provided <br /> during transfer shall have a copy provided to SJLHD within <br /> 30 days . <br /> 6 . Timing : Sampling could be scheduled within 30 days following <br /> your review of this work plan . Advance inspection notice <br /> of at least 48 hours will be given SJLHD for resampling <br /> inspection. The sample analysis should be ready for your <br /> review 4 to 5 weeks after they have been taken. <br /> Tim Ahearn <br /> Contact person <br />