Laserfiche WebLink
Z-1-,T, <br /> T C Ely , <br /> GROUND ZERO <br /> I <br /> ANALYSIS, nvc. JUN 9 1 <br /> � 2000 � <br /> 1714 Main Street ANTI-I <br /> Escalon,California 95320-1927 PERMIT/SERVICES <br /> Telephone:(209)838-9888 <br /> Facsimile. (209)838-9883 <br /> r <br /> June 8, 2000 �� <br /> Mr. Michael Infuma <br /> San Joaquin County Public Health Services, <br /> Environmental Health Division r <br /> 304 E. Weber Ave., Third Floor <br /> Stockton, CA 95202 <br /> Subject: Second Quarter 2000 Groundwater Monitoring and Sampling Report <br /> Woolsey Oil, Inc. Cardlock, 1501 W. Charter Way, Stockton, CA(site code 508175) <br /> Dear Mr. Infuma: <br /> E <br /> This letter report presents the results of the second quarter 2000 groundwater monitoring and sampling <br /> f activities at the subject site(Figure 1). <br /> i <br /> SITE ACTIVITIES <br /> Activities at the site included confirming wellhead elevations; monitoring water level elevations; ' <br /> purging and sampling groundwater from site wells; and analyzing samples for total petroleum <br /> hydrocarbons as gasoline (TPHg), total petroleum hydrocarbons as diesel (TPHd), benzene, toluene, <br /> ethylbenzene,total xylenes(BTEX), and methyl tert butyl ether(MTBE). <br /> i <br /> } <br /> FIELD WORK <br /> Groundwater Monitoringand Sampling <br /> P g <br /> On May 24, 2000, wellhead elevations were re-surveyed and monitoring wells MW1 through MW3 <br /> were monitored and sampled. The surveying confirmed the previously determined wellhead elevations. <br /> Groundwater elevations were calculated by measuring the depth to groundwater in each well and <br /> subtracting from the respective wellhead elevation. Groundwater rose an average of 0.82 feet since G <br /> last monitored on February 17, 2000. Groundwater flow was in a southeasterly direction with a <br /> t hydraulic gradient of approximately 0.008 ft/ft. A potentiometric surface map generated using the May <br /> 24, 2000 monitoring data is shown on Figure 2. Groundwater monitoring data are summarized in <br /> Table 1. Monitoring data sheets are included in Attachment A. <br /> woolscy.chtlgmr12gm2000.doc <br />