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� California Re Tonal Water Quality coontrol Board <br /> , <br /> Central Valley Region <br /> Winston H. Hickox Steven T. Butler, Chair <br /> Scrrctnr7 j°r Sacramento Main Office Gray Davis <br /> Emdronrnental Internet Address: littp://N%'N%-%x.sAi-cb.ca.gov/—rwqcb5 Governor <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95527-3003 <br /> Phonc(91 G)255-3000•FAx(91 G)255-3015 <br /> ITEMS TO BE INCLUDED IN A <br /> MONITORING WELL INSTALLATION WORKPLAN AND A <br /> 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 ,vorkplan. 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 signed by a registered geologist, certified engineering geologist, or <br /> civil engineer registered or certified by the State of California. <br /> 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'vells, 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 r:ference point <br /> G:\Project Filee\FORMS\monwell regts.d« California Environmental Protection Agency <br /> p�Recycled Paper <br />