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ATTACHMENT A -3 <br /> MONITORING WELL REPORT REQUIREMENTS <br /> e. Depth to first encountered groundwater and stabilized groundwater depth, <br /> f. Detailed description of soils encountered, using ASTM D2488-93 Method <br /> for Visual Classification, Standard Practice for Description and <br /> Identification of Soils (Visual-Manual Procedure) for Field Work. <br /> C. Well Construction Details — Diagram and Narrative <br /> 1. Well construction details <br /> a. Well number, date started, date completed, geologist's name <br /> b. Total depth drilled <br /> C. Drilling Contractor and driller name and address <br /> d. Depth of open hole (same as total depth drilled if no caving occurs) <br /> e. Method and materials of grouting excess borehole <br /> f. Footage of hole collapsed <br /> g. Length of slotted casing installed <br /> h. Depth of bottom of casing <br /> i. Depth to top of sand pack <br /> j. Thickness of sand pack <br /> k. Depth to top of bentonite seal <br /> I. Thickness of bentonite seal <br /> M. Thickness of concrete grout <br /> n. Boring diameter <br /> o. Casing diameter <br /> P. Casing material <br /> q. Size of perforations <br /> r. Well elevation at top of casing <br /> S. Initial and stabilized depth to groundwater <br /> t. Date of water level measurement <br /> U. Monitoring well number <br /> V. Date drilled <br /> E. Well Development <br /> 1. Date(s) and method of development of each well, <br /> 2. Method of development, <br /> 3. How well development completion was determined, <br /> 4. Volume of water purged from well and method of development water disposal, <br /> 5. Field notes from well development. <br /> F. Well Survey Results <br /> 1. Description of the measuring points (i.e. ground surface, top of casing, etc.), <br /> 2. Coordinate system, epochs, bench marks, horizontal controls, accuracy, and <br /> precision, <br /> 3. Vertical survey results with casing elevation with the cap removed within ± 0.01 <br /> foot accuracy, <br /> 4. Horizontal survey results with coordinates within +0.1 foot accuracy, <br /> 5. California Registered Civil Engineer or Licensed Surveyor's report, field notes, <br /> and stamp/signature in an appendix, <br /> 6. Tabulated installation data with well number(s), date well installed, datum, <br /> horizontal coordinates, vertical coordinates, ground surface elevation, total depth <br /> drilled, elevation of top of screen, elevation of bottom of screen, completed well <br /> depth, and depth of pump inlet. <br />