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STATE OF fALIFOPNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> RAR VALLEY LY REGION <br /> 3443 o <br /> SACRAMENTO,CA 95827-3098 1 1✓ 1d . <br /> 29 August 1989 ENVP�M�gER ICES1T� <br /> Mr. Don Gagnon <br /> Gold Bond Building Products <br /> 800 West Church Street <br /> Stockton, CA 95203 <br /> GOLD BOND SITE, 800 WEST CHURCH STREET, STOCKTON, SITE-SPECIFIC VARIANCE <br /> APPLICATION AND HYDROGEOLOGIC ASSESSMENT AND TANK MONITORING PLAN <br /> Regional Board staff have reviewed the site-specific variance application and <br /> the 3 March 1989 Hydrogeologic assessment and tank monitoring plan prepared by <br /> your consultant, American Environmental Management Corp. The application for <br /> a site-specific variance requested relief from the vadose zone monitoring <br /> requirement of alternative No. 2 of the California Underground Storage Tank <br /> Regulations because: No. 6 fuel oil does not give off significant vapor; No. 6 <br /> fuel oil will float on water and would show up in the monitoring wells if a <br /> leak were to occur; and the depth to ground water at this site was believed to <br /> be 10 to 15 feet below ground surface. <br /> The tank monitoring plan documents the installation and sampling of three <br /> piezometers. These piezometers were originally intended to define the shallow <br /> ground water gradient so that permanent monitoring wells could be located <br /> appropriately. However, according to the 3 March 1989 report, the piezometers <br /> are intended to satisfy the requirements for obtaining the site-specific <br /> variance. <br /> In addition to the required vadose zone monitoring, alternative No. 2 <br /> specifies that soil samples be acquired and analyzed by appropriate methods, <br /> and that ground water monitoring wells be constructed according to the <br /> regulations. We find that the soil samples were not analyzed by appropriate <br /> methods and the monitoring wells were not constructed in accordance with the <br /> regulations. Furthermore, ground water at the site is not as shallow as had <br /> been anticipated. The depth to ground water is reported to be approximately <br /> 20 feet. Therefore, it may be possible to monitor the vadose zone. <br /> According to the California Underground Storage Tank Regulations, approval of <br /> a site-specific variance can only be granted after any documents necessary to <br /> satisfy the California Environmental Quality Act (CEQA) have been submitted. <br /> It has been determined that, at a minimum, an initial study will be necessary <br /> to determine whether a Negative Declaration or an Environmental Impact report <br /> will be required for this project. In order for the Regional Board to act on <br /> the site-specific variance request, Gold Bond Building Products must prepare <br /> and submit the appropriate document based on the initial study. Therefore, <br /> based on the information provided, we are not able to consider the requested <br />