WORK PLANS - Laserfiche WebLink

Home Browse Search

0 GENESIS ENGINEERING&REDEVELOPMENT vicinity, meaning that it recharges the groundwater table. Therefore, Whiskey Slough is not considered a sensitive receptor. 3.0 SCOPE OF WORK This Work Plan includes the following elements: 1. Advancing 11 shallow direct-push reconnaissance borings to a depth of approximately 20 to 25 feet bgs, collecting grab groundwater samples from each boring, and analyzing the groundwater samples for select inorganic constituents; 2. Advancing shallow hollow stem auger borings to a depth of approximately` 5x- to 30 feet bgs, at locations to be selected based on grab groundwater sample results,and installing monitoring wells in each boring; 3. Sampling the newly-installed monitoring wells, as well as piezometers P-1 and P-2, and analyzing the groundwater samples for select constituents; 4. Performing a statistical analysis of water quality data from upgradient monitoring wells and Whiskey Slough,to establish background water quality levels for Site groundwater; and 5. Preparing a Water Quality Monitoring Plan for the Site. The locations of the proposed reconnaissance borings are shown on Figure 3. Monitoring well locations will be determined based on the findings from the reconnaissance boring groundwater samples. The Work Plan incorporates the following documents,which are included as Appendices: 1. Sampling and Analysis Plan ("SAP")—Appendix A 2. Quality Assurance Project Plan("QAPP")—Appendix B 3. Health and Safety Plan("HASP")—Appendix C 3.1 Task 1 —Pre-Field Activities Pre-field activities include marking and clearing proposed reconnaissance boring and monitoring well locations for subsurface obstructions; obtaining required County permits and access agreements; managing and scheduling subcontractors; field logistics and coordination; William DePaoli Property 3 of 7 Additional Groundwater Investigation Work Plan June 2009