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w <br /> ff <br /> ENV{RONSMTH <br /> MENTALTECHNDLOGIESCORPORATION <br /> April 28, 1995 <br /> 94-369-001-TIO <br /> ]995 <br /> Ms. Linda Turkatte �j � l <br /> San Joaquin County Public Health Services . - l ENVIRONMENTAL I /SER <br /> Environmental Health Division <br /> �'�RMIT/S✓ 12ICES L7H <br /> P. O. Box 388 <br /> Stockton, CA 95201-0388 <br /> Subject: Site Status Report, January through March 1995,-Smith Canal Pump Plant, <br /> Fontana Street and Smith Canal, Stockton, California, Site Code 1102 <br /> Ms. Turkatte: <br /> This letter report summarizes groundwater monitoring activities at the above referenced site <br /> (Figure 1) during the first quarter of 1995. These activities included monitoring fluid levels in all <br /> site wells and collecting groundwater samples from wells MW1, MW2, MW3, MW5 and MW6 <br /> for laboratory analysis. <br /> FIELD WORK <br /> On March 24, 1995, static fluid levels were measured in monitoring wells MW1 through MW6. <br /> The water table rose an average of 4.49 feet since the last monitoring event on November 29, <br /> 1994. Table 1 summarizes the water level data collected during the reporting period and provides <br /> previous data for comparison. <br /> A groundwater gradient map was created for the March 24, 1995 monitoring event and is shown <br /> on Figure 2. The figure depicts a gradient which varies from approximately 0.005 ft/ft (26 <br /> ft/mile) in the northwest direction to approximately 0.01 ft/ft (53 ft/mile) in the northeast <br /> direction. <br /> No measurable floating petroleum product was observed in well MW4. Table 2 summarizes the <br /> product thickness measurements and volume of product removed from previous monitoring <br /> events. All bailed product has been stored in a DOT approved double containment drum pending <br /> appropriate disposal. <br /> Groundwater samples were collected on March 24, 1995 from wells MW1, MW2, MW3, MW5 <br /> and MW6. No groundwater samples were collected from MW4 due to the presence of product j <br /> sheen. Prior to sample collection, each sampled well was purged of a minimum of three well <br /> casing volumes of water. Purged water was contained in labeled 55 gallon drums (DOT H), and <br /> :r ') stored on-site. <br /> 1501151QRTERLY51 QMR1995.doe <br /> 1710 Main Street Escalon,CA 95320 (209)838-3507 • fax(209)838-3509 <br /> Engineering • Consulting Remediation • Construction <br />