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2 <br /> Soil samples will be taken from bottom of tank excavation (see <br /> Sampling Plan) <br /> If soil analyses indicate no contamination, backfill and compact in <br /> lifts to 90 percent compaction to subgrade. <br /> If soil analyses indicate contamination,line with visqueen <br /> temporarily,backfill excavation until extent of contamination can be <br /> verified and submit plans for the site mitigation to the health <br /> department for approval. <br /> Compaction testing will be carried out by Environmental Solutions, <br /> Inc. <br /> - Resurface over tank excavation with asphalt or concrete to match <br /> existing surfaces. <br /> Return completed tank tracking record form to San Joaqum Local <br /> Health District. <br /> A no-smoking zone within 50 feet of excavation will be established <br /> and posted No stroking,eating,or drinking will be permitted in this <br /> zone. All soil removed shall be placed at least two feet away from the <br /> edge of excavation At least two hand-held Class B fire extinguishers <br /> are to be onsite and readily available. While the excavations are left <br /> open while laboratory tests are being conducted,or for any other <br /> reason,they will be properly barricaded to prevent accidents. (For <br /> additional details see Health and Safety Plan attached.) <br /> • SAMPLING PLAN FOR COLLECTION OF SAMPLES . <br /> - The method for collecting soil samples will be with a backhoe bucket <br /> under the tanks immediately after the tanks are removed Collecting <br /> of samples under abandon pipelines,if found,will be by hand shovel <br /> or drive sampler. <br /> - The selected points of sampling will be at both ends of each tank <br /> removed, with the exception of the 26,000-gallon diesel tank. <br /> A sample will be taken at each end and at the middle of this tank <br /> In addition,a soil sample will be taken under abandon fuel lines, <br /> if found, every 20 feet of length. <br /> - The preservation method to prevent loss of volatile constituents will <br /> be to properly seal sample jar lids and place jars immediately into a <br /> cooler packed with ice and transported the same day under proper <br /> chain-of-custody to a certified laboratory. Soil samples will be taken <br /> by a geologist,under the direction of a registered geologist. <br /> - The planned method of analysis will be: <br /> • For the gasoline tank,which is leaded gasoline,and for the <br /> diesel tank,as stipulated by the San Joaquin local health district. <br /> • The analysis for the oily water tank will be the same as for diesel <br /> since the wastewater is from the diesel locomotive refueling <br /> area. <br /> ENVIRONMENTAL SOLUTIONS <br />