Laserfiche WebLink
r <br /> GeologicafTechnks Inc. <br /> 2741 River Road <br /> Mo&,W,Cal�aa 95351 <br /> (209)538-6424/Fax#538-5852 <br /> REPORT <br /> Groundwater Monitoring <br /> Fall Quarter 1999 <br /> UST Site <br /> Ted Peters Trucking Co., Inc. <br /> 1985 Yosemite Ave. <br /> Manteca, CA 95336 <br /> Project No 640 2 <br /> January 31, 2000 <br /> EXECUTIVE SUMMARY <br /> This report summarizes the Fall Quarter 1999 round of groundwater monitoring and testing <br /> that took place on November 24, 1999 The test results show that only minor amounts of <br /> Ethyl Benzene were present in the ground water sample collected from MW-1 None of the <br /> oxygenated fuel compounds were detected in any of the wells <br /> The groundwater level has decreased approximately 0 08 feet since the July 26, 1999 <br /> monitoring event Groundwater gradient calculations show that groundwater flow was <br /> N68°W, which is only a difference of two degrees since the July 1999 monitoring event <br />' 1.0 GROUNDWATER MONITORING <br /> I11 Hydrogeology of Site <br /> A site-specific groundwater gradient and bearing was calculated from the depth to water <br /> measurements taken during the groundwater monitoring The gradient was 0 0015 ft/ft <br /> flowing N68°W The average elevation of groundwater under the site was 13 97 feet above <br />' mean sea level, which is 0 08 feet lower than the previous monitoring event Depths to water <br /> ranged from 9 5 to 10 feet bgs <br />