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3.0 FRN DINGS <br /> 3 1 DOMESTIC WELL RESEARCH <br /> There are two domestic water supply wells at the site and designated as "Small Well" and <br /> "Large Well" on Figure 2 ESE contacted the California Department of Water Resources <br /> (DWR) and requested information concerning the onsite water supply wells The DWR had <br /> a record of only one well at the site drilled in 1954 This well is designated as "Lar e.ell" <br /> Well construction information shows the well casing is 10 inches in diameter unperforate <br /> to 0 feet depth below ground surface (bgs) From 120 to 129 feet, the well is uncased <br /> No records are available for a second well, delineated as "Small well" on Figure 2 DeJesus <br /> Well and Pump was contracted by Mr Cecchini, site owner, to replace the small well pump <br /> due to pump failure During pump replacement, the well was shut down, which provided <br /> the opportunity to investigate the well using a downhole video camera This work was <br /> performed on March 10, 1994 ESE was present during the video work and made the <br /> following observations <br /> is cased with 6-inch diameter steel casin from round surface toThe6;�� <br /> g g , <br /> a depth of 67 feet bgs From 67 to 149 feet bgs the well is cased with 4-inch <br /> diameter steel casing <br /> The downhole video showed a large amount of scaling on the casco throughout No <br /> g �g g g <br /> Gil <br /> perforation were observed in the casing and it is likely that if any are present, they <br /> are almost completely plugged The casing ends at a depth of 149 feet bgs The well <br />® <br /> is open below 149 feet to a depth of 150 feet bgs DeJesus Well and Pump believes <br /> l� that the majority of the water is likely from this interval <br /> Water level measurement ports were installed on both the Small and Large Well at the <br /> site A flowmeter was installed on the "Small Weil" discharge line. <br /> F\6925 W\lgmr94 rpt 4 Environmental Science&Engineenng,Inc <br />