Laserfiche WebLink
03/16/2001 11: 33 2094671 AGE STOCKTON . PAGE 08 <br /> 12 March 2001 <br /> AGB-NC Project No. 97-0333 <br /> Page 5 of 8 <br /> • Permitting,planning and pre-field work activities; <br /> • Drilling and well installation; <br /> • Aquifer pump test; <br /> • Report of findings. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be submitted to the San Joaquin County Public Health <br /> Services - Environmental Health Division (PHS-EHD). As required by PHS-EHD permitting, a <br /> health and safety plan will be prepared in accordance with Occupational Safety and Health Guidance <br /> Manual for Hazardous Waste Site Activities(National Institute for Occupational Safety and Health <br /> Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). Prior to <br /> drilling activities, each proposed drilling location will be clearly marked and a utility clearance <br /> obtained through Underground Service Alert. <br /> 3.2. GROUND WATER EXTRACTION WELL INSTALLATION <br /> AGE proposes to install one six-inch diameter ground water extraction well screened 15 to 35 feet <br /> bsg and one two-inch diameter observation well screened 15 to 35 feet bsg. The proposed ground <br /> water extraction and observation wells will be screened in the upper half of the First Zone ground <br /> water. Cross sections C-C'and D-D'depicting general lithology beneath the site are included Cone <br /> Penetrometer Testing Site Investigation-Fourth Quarter 1000, dated 07 February 2001 (Figures 3 <br /> and 4).The proposed ground water observation wells will be placed in areas of known ground water <br /> MTBE-contamination at the site.Based on the MTBE-impact encountered during the investigation, <br /> AGE proposes the ground water extraction well to be located approximately 20 feet south of ground <br /> water monitoring well MW-2; the ground water observation well should be located approximately <br /> 10 feet south of MW-2 (See Figure 2). <br /> Following well installation, each well will be developed to maximize water flow into the well and <br /> minimize the amount of fine-grained sediment drawn into the well during pumping or bailing. <br /> Procedures for well installation and development are presented in Sections 4.2 and 4.3,respectively. <br /> 3.3. AQUIFER PUMP TEST <br /> Following well installations, a twelve-hour First Zone aquifer pump test is proposed at the site to <br /> Adva.ced GwEnvlronmental,Inc. <br />