WORK PLANS - Laserfiche WebLink

Home Browse Search

0 27 November 2001 AGE-NC Project No. 01-0856 Page 2 of 5 are comprised of the California Coast Range and the Sierra Nevada,respectively.Rocks composing the basement complex of the province have not been completely defined but are believed to be metamorphic and igneous in origin.The northern and southern portions of the Great Valley Province have been designated the Sacramento and San Joaquin Valleys, respectively. The Modesto, Riverbank and Turlock Lake Formations and overlying Recent alluvium are the principal source of domestic ground water in the 13,500-square-mile San Joaquin Valley Ground Water Basin (Basin 5-22). This basin is drained primarily by the San Joaquin River. The nearest surface water features in the vicinity of the subject property is the Mokelumne River,approximately 4,500 feet to the north. 2.2. GROUND WATER DEPTH AND FLOW DIRECTION The estimated depth to ground water at the subject property is approximately 50 to 60 feet bsg,based on the map titled Lines of Equal Depth to Groundwater, Spring 1999 published by the San Joaquin County Flood Control District and Water Conservation District (FCD&WCD). It is inferred from the map titled Lines of Equal Elevation of Groundwater, Spring 1999, also published by the FCD&WCD, that the local ground water flow is toward the southeast on the subject property, but this maybe greatly modified by local recharge and discharge patterns. Ground water is considered to be of beneficial use and is utilized for domestic, industrial and commercial purposes. 3.0. SCOPE OF WORK During the phase I environmental assessment performed by AGE,items of potential environmental concern noted at the site included: 1)the presence of stained soil in an area covered by engine parts, drums and other debris, 2) adjacent railroad tracks, and 3) the close proximity to a former coal-gas works. AGE proposes to collect soil samples to investigate the areas of potential environmental concern for petroleum hydrocarbons,volatile organic compounds,LUFT metals including zinc(Zn), copper (Cu), nickel (Ni), chromium (Cr) and lead (Pb), and polynuclear aromatic compounds (PNAs). The phase H site assessment will require completion of the following tasks: • Permitting and pre-field work preparations; • Soil sample collection and analysis; • Report preparation. Advanced GeoEnvironmental,Inc.