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ATTACHMENT B <br />CLEANUP AND ABATEMENT ORDER NO. R5-2006-0707 <br />COVE CONTRACTORS, INC. AND EL DORADO PROPERTY <br />MANAGEMENT, INC. <br />COVE CONTRACTORS FACILITY <br />SAN JOAQUIN COUNTY <br />0,11 <br />• 1 1, 1 <br />Prior to installation of groundwater monitoring wells, the Discharger shall submit a workplan <br />containing, at a minimum, the information listed in Section 1, below. Wells may be installed after staff <br />approve the workplan. Upon installation of the monitoring wells, the Discharger shall submit a well <br />installation report, which includes the information contained in Section 2, below. All workplans and <br />reports must be prepared under the direction of, and signed by, a registered geologist or civil engineer <br />licensed by the State of California. <br />SECTION 1 - Monitoring Well Installation Workplan <br />A. General Information: <br />Purpose of well installation project <br />Copies of County Well Construction Permits (to be submitted after workplan review) <br />Monitoring well locations and rationale <br />Survey details <br />Equipment decontamination procedures <br />Health and safety plan <br />Topographic map showing any existing wells, proposed wells, waste handling facilities, <br />utilities, and other major physical and man-made features. <br />B. Drilling Details: <br />Describe drilling technique <br />Sampling intervals, and logging methods <br />C. Monitoring Well Design: <br />Casing diameter and centralizer spacing (if needed) <br />Borehole diameter <br />Depth of surface seal <br />Well construction materials <br />Diagram of proposed well construction details <br />Type of well cap, bottom cap either screw on or secured with stainless steel screws <br />Size of perforations and rationale <br />Grain size of sand pack and rationale <br />Thickness and position of bentonite seal and sand pack <br />Depth of well, length and position of perforated interval <br />D. Well Development: <br />Method of development to be used <br />Method of determining when development is complete <br />Parameters to be monitored during development <br />Method of development water storage and disposal <br />