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j. Disinfect well and test for bacterial contamination. <br /> k. Perform all specified operations incidental to well construction such <br /> as permits, logs, filing of records, temporary capping, and cleanup. <br /> 2. Construction requirement for this well is: f <br /> a. Conductor casing - 30-inch diameter. .. <br /> b. Finished Bore Hole - 24-inch diameter x 1,000 feet (approximately) <br /> c. Casing Outside Diameter-4 @ 4-inch diameter <br /> d. Sanitary Seal Outside Diameter- 24-inch <br /> e. Casing Material - Schedule 80 PVC - 2,820 feet total <br /> (approximately) <br /> f. Screen Material - Schedule 80 PVC - 80 feet total (approximately) <br /> g. Drilling Method - Reverse Rotary <br /> 1.03 REFERENCES <br /> A. State of California, Department of Water Resources Bulletin No. 74-94 <br /> 9 (Bulletin No. 74). <br /> 14 B. AWWA Standard A100. <br /> 1.04 SUBMITTALS <br /> t <br /> A. Submit in accordance with Section 2 of these Specifications. <br /> B. Product Data: Fully describe every product proposed for use. Y <br /> C. Plan of Operations: Before the Contractor commences work on the <br /> Production Well and the Nested Monitoring Well, he shall file a Pian of <br /> Operation with the Engineer for approval. The Pian of Operation shall <br /> include identification of any subcontractors, a description of the firm, a copy <br /> of all required permits, and a description of the procedures and outputs from <br /> the procedure. <br /> D. Sampling Program Submittal: Prior to starting any construction, the <br /> Contractor shall prepare a written submittal describing his method of <br /> obtaining discrete water samples from the various aquifers encountered. <br /> Include descriptions of all materials, methods, casing slot sizes, gravel pack <br /> gf'adation, and any other information pertinent to obtaining the water <br /> samples. <br /> E. Drilling Log: The Contractor shall keep an accurate log of the material found <br /> during the drilling of both wells and show the elevations at which the material <br /> was encountered, with particular care being taken to locate all water bearing <br /> strata. A complete report of the log shall be submitted to the Engineer via fax <br /> at the end of each day's drilling operation. During drilling and well <br /> construction the Drilling Log shall include the following: <br /> 1. Reference point for all depth measurements. <br /> 2. The depth at which each change of formation occurs. <br /> 3. Record of bits used. <br /> 4. Drilling times for each 5-foot increment. <br /> 5. Record of drilling fluids. <br /> 6. The thickness of each stratum. <br /> Division III- 12 <br />