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CVRWQCB <br /> Gordon Boggs <br /> July 28 , 1989 <br /> Page 2 <br /> be used once after which it would be coated with the asphalt. <br /> 4 . The ground water at this sit�is__be� o 100 eft _therefore <br /> a ground water monito it ng pr6gram would not allow us to detect <br /> a leak until the contamination had migrated down to the water <br /> table. This could take weeks or possibly months and could <br /> allow a good deal of contamination in the soil before the leak <br /> is detected. <br /> RMC Lonestar proposes to install three vadose well points <br /> strategically located within the two underground tanks' <br /> backfill . The well points would be driven two feet below the <br /> bottom of the tanks. By installing the vadose well points <br /> around the tanks' backfill, any release from these tanks or <br /> surface spills would be detected before the ground water is <br /> affected and only minimal soil cleanup may be required. <br /> We therefore ask that this request be given approval by your <br /> agency in order that implementation of this program may begin. <br /> Should you have any questions concerning this matter or should <br /> you require any additional information, please contact me at <br /> (415) 426-2279. <br /> S ' cerely , <br /> Bradd Stat <br /> Environmental Engineer <br /> cc: Jaime Favila, San Joaquin LHD / <br /> William Snavely, San Joaquin LHD ✓ <br />