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d) Dewatering - Construction shall be accomplished in a dry trench. Wellpointing will be required as necessary. Upon completion of the construction, the wellpoint holes shall be filled with grout. All water entering excavations or other parts of the work shall be contained, collected and.pumped to suitable places for disposal. e) Sheeting - Sheeting and shoring shall be installed as may be necessary for the protection of the work, preservation of adjacent property and structures, and the safety of employees. Sheeting and bracing shall uniform to OSHA requirements. B. Installation of Water Mains - Installation must be in accordance with latest AWWA Standard C600 irrespective of the type of pipe selected. All installation procedures must also be in conformance with pipe manufacturer's recommendations. Minimum cover shall be 36" from the center line of the pipe. Magnetic I.D. tape shall be placed in the trench over PVC pipe, 12" below grade. Allowable deflection at the pipe joints and curvature of PVC pipe shall not exceed the manufacture's specifications. a) Trench - Trench width shall be kept to a minimum necessary for pipe installation. The trench bottom shall be graded and alignment shall be parallel with the roadway where possible. b) Backfill - Only good quality packfill, free of stones, roots, rocks, broken cement, or other material which might be damaging to the pipe shall be used. Backfill must be put in the trench in lifts. C) Compaction - All pipe must be compacted by hand tamping to the center line, under the pipe. Backfill shall be compacted in lifts up to the surface to achieve a minimum compaction of 950 of maximum density in accordance with AASHO T-180 and ASTM D-2167. d) Thrust blocks - Concrete thrust blocks must be installed against undisturbed soil at each bend, under valves and hydrants, behind trees and hydrants at reducers, crosses, and at the end of the line. Thrust blocks shall be designed to resist forces created by 200 psi. e) Dewatering - Construction shall be accomplished in a dry trench. Wellpointing will be required as necessary. Upon the completion of the construction, the wellpoint holes shall be filled with gout. All water entering excavations or other parts of the work shall be contained, collected and pumped to suitable places for disposal. f) Sheeting - Sheeting and shoring shall be installed as may be necessary for the protection of the work, preservation of adjacent property and structures and the safety of employees. Sheeting and bracing shall uniform to OSHA requirements. Utilities Director Terry Pinto explained that sometime in the early 1980s, the County simply adopted the standards of the City of Vero Beach, and these are no longer specific enough since the County is doing much more construction now than the City. He recommended that the Board adopt by resolution the utility standards as set out above. 43 BOOK 69 PAGE 753 T 0.197