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California Regional Nater Quality Control Board <br /> QW; Central Valley Region <br /> Robert Schneider Chair 0 <br /> Winston 14.Hickox Gray Davis <br /> 5ecrelaryfor Sacramento Alain Office Governor <br /> Environntenial Internet Address: littp:/t%Ni%,%v..s.wTeb.ca.gov/—rwqcb5 <br /> Protection 3443 Routier Road,Suite A,5acraniento,.Califomia 95827-3003 <br /> Phone(9I6)2551-3000•FAX(9l G)255-3035 <br /> ORDER NO. R5-2002-0014-R01 <br /> ATTACHMENT A <br /> ITEMS TO BE INCLUDED IN A MONITORING WELL INSTALLATION WORKPLAN AND <br /> A MONITORING WELL INSTALLATION REPORT OF RESULTS <br /> Prior to installation of groundwater monitoring wells, the Discharger shall submit a workplan containing <br /> the minimum listed information. Wells may be installed after staff approve the workplan. Upon <br /> installation of the monitoring wells, the.Discharger shall submit a report of results, as described below. <br /> All-workplans and reports must-be signedby a registered geologist;certified engineering geologist;or <br /> civil engineer registered or certified by the State of California. <br /> E <br /> I. Monitoring Well Installation Workplan <br /> A. General Information: <br /> Monitoring well locations and rationale <br /> Survey details <br /> Equipment decontamination procedures <br /> Health and safety plan <br /> Topographic map showing any existing monitoring wells, proposed wells, waste handling <br /> facilities, utilities, and other major physical and man-made features. <br /> B. Drilling Details: describe drilling and logging methods <br /> C. Monitoring Well Design: <br /> Casing diameter <br /> Borehole diameter <br /> Depth of surface seal <br /> Well construction materials <br /> Diagram of well construction <br /> Type of well cap: <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 /> Method of development water disposal <br /> E. Surveying Details: discuss how each well will be surveyed to a common reference point horizontal <br /> and vertical survey.data is required. <br />