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• Development: surge, bail, and pump method. <br /> • Completion determination:When all parameters were stabilized. Monitored Parameters <br /> during development:Turbidity,pH,temperature,dissolved oxygen,specific conductivity. <br /> • Total volume purged from well: 156 gallons <br /> • Water storage and disposal containerization: 500 gallon container. See Section 1.2. <br /> • Well development field forms are provided in Appendix C. <br /> 1.4 Well Construction Details <br /> • Number of wells installed: 1 <br /> • Date started:9/28/15 <br /> • Date completed: 9/28/15 <br /> • Professional Geologist: Jeffrey Bennett <br /> • Total depth drilled: 55 <br /> • Well elevation top of casing: 16.51 ft asl <br /> • Cement grout <br /> • Footage of hole collapsed: NA <br /> • Length of slotted casing: 20 ft <br /> • Depth to top and bottom of screen: 35-55 ft bgs <br /> • Depth of bottom of casing: 55 ft bgs <br /> • Depth of top of sand pack: 33 ft bgs <br /> • Thickness of sand pack: 22 ft <br /> • Depth to top of bentonite seal:30 ft bgs <br /> • Thickness of bentonite seal: 3 ft <br /> • Thickness of concrete grout: 30 ft <br /> • Borehole diameter: 10" <br /> • Well casing diameter: 4" <br /> • Centralizer spacing: N/A <br /> • Casing material: Schedule 40 PVC <br /> • Size of perforations: 0.010-inch <br /> • Above ground completion with stove pipe and bollards <br /> • Type of well cap, bottom cap: Top—locking; Bottom -threaded <br /> • Further details are illustrated in construction diagrams in Appendix B. <br /> • Date of water level measurement: October 1, 2015 <br /> • Initial and final depth to groundwater during development: 31.35 ft bgs and 32.80 ft bgs <br /> • Monitoring well number; MW-7A <br /> • Drilling contractor, address, and driller name: Gregg Drilling, Inc., 950 Howe Road, <br /> Martinez, California 94553. Driller: Jeremy Neff <br /> MW-7A Install Report Stockton,CA <br /> Cove Contractors 2 Project No.04.20090407.00 <br />