ARCHIVED REPORTS XR0003742 - Laserfiche WebLink

Home Browse Search

i I I . The domestic well located at 2472 Country Club Boulevard is out of service, but still has a well seal at the well head Previously, collection of ground water samples or water level measurements from this well was not possible because no access was available through the well head seal A capped 314-inch diameter pipe nipple in the well seal was removed and found to be a suitable access point through the well seal The pipe nipple was cleaned and placed back in the well seal to allow future access for sampling and water level measurements Attempts to remove the chlorination plug on the domestic well located at 2456 Country Club Boulevard were unsuccessful The steel plug was rusted and stuck to the well seal After well head repairs were completed on December 22, 1997, Blaine collected ground water samples from all of the domestic wells The results of this sampling event are presented in Table 4 and on Plate 3 A brief summary of findings are presented below Ground water samples collected from the domestic wells located at 2452 Country Club Boulevard, 2454 Country Club Boulevard, 2456 Country Club Boulevard, and 2472 Country Club Boulevard did not contain detectable levels of TPPH, BTEX, and oxygenate compounds Ground water samples collected from the sample port on the well located at 2468 Country Club • Boulevard did not contain detectable levels of TPPH, BTEX, or oxygenate compounds The ground water sample collected from within the well with a bailer contained 5,700 ppb TPPH and 4 9 ppb MTBE (by EPA Method 8260) DISTRIBUTION OF PETROLEUM HYDROCARBONS DISTRIBUTION OF PETROLEUM HYDROCARBONS IN SOIL The petroleum hydrocarbon release documented at this site occurred in the former UST complex located in the southeastern corner of the site Soil samples collected from the piping trenches indicate that low levels of petroleum hydrocarbons were present in some locations along the product piping, but when compared with the level of petroleum hydrocarbons detected in the vicinity of the former UST complex it is clear that the former UST complex is the primary source of petroleum hydrocarbons in the soil and ground water The vertical extent of petroleum hydrocarbons in the source area was characterized by Boring RW-B1 This boring was drilled to a depth of 46 5 fbg Soil samples collected from this boring at the depths of 11, 31 5, 36 5, 41 5 and 46 5 show a general decrease in concentration with depth The • deepest soil sample at 46 5 fbg contained ND levels of TPPH, 0 014 ppm benzene and 0 62 ppm 240-0783 16