ARCHIVED REPORTS XR0003742 - Laserfiche WebLink

Home Browse Search

Soil samples were collected from MW-13 at the depths of 10, 30, 50, 55, 60, 70, and 80 fbg The soil sample from 10 fbg did not contain detectable levels of TPPH, and contained 0 029 ppm benzene, and 1 7 ppm MTBE TPPH, BTEX, and MTBE were not detected in any of the other sample intervals from this boring Soil samples were collected from MW-14 at the depths of 5, 10, 15, 28, 44, 56 5, 66 5, and 71 5 fbg TPPH , BTEX, and MTBE were not detected in any of the soil samples from this boring Ground Water Chemical Analytical Data Ground water samples were collected from the newly installed Well MW-14 on December 23, 1997 and Wells MW-12, and MW-13, on December 24, 1997 The ground water chemical analytical data are presented 1n Table 3 and shown on Plate 3 A summary of the ground water chemical analytical findings are presented below Ground water samples collected from MW-12 did not contain detectable levels of TPPH, BTEX, and MTBE Oxygenate compounds were not detected in the ground water samples from MW-12 with the exception of ethanol occurring at a concentration of 38,000 ppb Ground water samples collected from MW-13 did not contain detectable levels of TPPH, benzene, and MTBE Xylenes were detected at a concentration of 2 6 ppb Oxygenate compounds were not detected in the ground water samples from this well Ground water samples collected from MW-14 did not contain detectable levels of TPPH, benzene, and MTBE Xylenes were detected at a concentration of 0 63 ppb Oxygenate compounds were not i detected in the ground water samples from this well I DOMESTIC WELL AND CALTRANS WELL SAMPLING At the request of SJCPHS well head modifications were made to the domestic wells located at 2452 Country Club Boulevard, 2454 Country Club Boulevard, 2468 Country Club Boulevard, and 2472 Country Club Boulevard The modifications were performed by Gregg Drilling and Cambria on December 22, 1997 and included adding copper tubing to the sample ports on the domestic wells at 2452 Country Club Boulevard, 2454 Country Club Boulevard, and 2468 Country Club Boulevard Additional work was performed on the domestic well located at 2452 Country Club Boulevard to make access through the chlorination plug which had been broken and sealed with silicone The silicone was removed and the broken plastic plug was also removed A new galvanized steel threaded plug was installed in its place to seal the well head and allow future access for sampling and water level measurements • 240-0783 15