ARCHIVED REPORTS XR0007793 - Laserfiche WebLink

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well screen is minimized Approximately 55 gallons of water may be generated by developing each well Groundwater produced during well development and equipment rinse water will be contained in 55-gallon steel drums and securely stored on the Site Each drum will be labeled with date of accumulation, street address, contents of the drum, owner, and a contact phone number Offsite treatment/disposal will take place within 90 days of the accumulation date, or upon receipt of laboratory analyses, and will be the responsibility of the Owner ' 3.1.5 SURVEY CONTROL The top of each new groundwater monitoring well casing will be surveyed by a State of California Licensed Land Surveyor for location and elevation control with respect to the nearest USGS or USC&GS benchmark The groundwater elevation will be determined in each well, and the data will be used to evaluate hydraulic gradient and direction of groundwater flow at the Site ' 3.2 SOIL AND GROUNDWATER ANALYSES All analyses will be conducted by California Laboratory Services (CLS), Rancho Cordova, ' California All soil and groundwater analyses will be conducted within 14 days of sample delivery to the laboratory Soil and groundwater samples collected from each well bore will be analyzed for TPHg, TPHd and organic lead as listed on Table 2 of the LUFT Manual Tri-Regional Board Staff ' Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sites (10 August 1990) 3.3 PRELIMINARY INVESTIGATION AND EVALUATION REPORT A supplementary Preliminary Assessment and Evaluation Report (PIER) will be prepared summarizing field and laboratory methods used, data obtained, and conclusions and ' recommendations The document will contain • A complete description of the conduct of the field and laboratory analyses activities, ' • Plan maps showing the locations of drilled and sampled boreholes and installed groundwater monitoring wells, ' a Cross-sections illustrating the lateral and vertical extent of soil lithology and soil and groundwater contamination encountered, • Tables summarizing soil and ground-water analytical data, Conclusions based on generated data, • Recommendations for further assessment work, if necessary, and, A discussion of potential soil and ground-water remedial alternatives based on the field and analytical results generated 3.4 QUALITY ASSURANCE/QUALITY CONTROL The following Quality Assurance/Quality Control (QA/QC) procedures will be incorporated in all project activities 356-002 -8-