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Villages C P2-CS 861204· AssO CiATES PIERC;E-LUNSFORD , INC. CONSULTING ENGINEERS Ref. No. 515348.10 CF COPPE1 Project: Villages of Coppell - Phase Two Contractor: Dalcon Services Owner: Coppell M.U.D. No. 1 Developer: Dimension/Brooks Date: December 4, 1986 Deficiencies to be Completed Before Moving Paver On-Site: Sanitar~ Sewer S~stem 1. Grout flowline inverts of all manholes on-site per City of Coppell specifications. Any leaks in walls or around pipe connections must be plugged and sealed from infiltration. 2. Replace cone section of manhole at Station 4+90, Line "C" which was placed above plan elevation. 3. In areas where trench backfill has not passed moisture content and soil compaction requirements, the existing backfill must be removed and recompacted to specified soil density and optimum moisture requirements. The costs of all retests are the responsibility of the Contractor per Article 1-42.3 of the North Central Texas Council of Governments Standard Specifications. 4. Verify that the end of the 4" sanitary sewer service to each lot has appropriate flagging from the end of the service to the natural ground and that the flagging is tied to a 2 x 4 driven at each service location as a permanent marker. The Contractor must provide "field ties" of all sewer services to fixed points such as manholes or sewer cleanouts for preparation of as-built plans as provided in the Special Conditions to the Contract Documents. Any other changes or deviations during construction of the utility lines must also be noted. 5. Preliminary air testing has indicated there are air leaks and/or infiltration into several sanitary sewer lines. The leaks must be located by means of T.V. inspection and segment air testing. All leaks and/or sags in the sanitary sewer system must be repaired in conformance with contract specifications. A Mandrel must be pulled through all sanitary sewer lines prior to the air test to insure the pipe is within deflection s tanda rds. 6. All manhole castings must be set to grade with spacer rings and grouted to the cone section. 3109 CARLISLE, SUITE 206 3901 W. PIONEER PARKWAY, SUITE 100 DALLAS, TEXAS 75204 ARLINGTON, TEXAS 76013 (214) 871-2126 (817) 461-5868 Metro Villages of top,ell - Phase Two December 4, 1986 Page 2 Water System 1. The water system shall be tested with a hydraulic test pressure of not less than 150 psi maintained over a period of not less than two hours. Rate of leakage is not to exceed 11.65 gallons per inch of nominal diameter of pipe per mile over a 24-hour period per North Central Texas Council of Governments Standard Specifications. Any leaks will be repaired by the Contractor and/or 3 - 4" services replaced as needed. After satifactory completion of pressure testing, all waterlines shall be purged, sterilized and tested by the Contractor until the bacterial count within the main meets minimum potable water quality standards. 2. Verify that the end of the 3/4" water service to each lot has appropriate flagging from the end of the service to the natural ground and staked. The Contractor must provide "field ties" of all water services to fixed points such as fire hydrants and on valve boxes and any show all changes to the proposed utility improvements for preparation of as-built plans. Storm Sewer: 1. In areas where trench backfill has not passed moisture content and soil compaction requirements, the existing backfill must be removed and recompac ted to specified requirements. Backfill placed over Storm Sewer Line "A" from Sra. 0+50 to 2+000 was placed with native material instead of clean sand as required in standard construction details. It must be removed and replaced with proper backfill and compacted in accordance with plans and specifications. In addition, a drainage swayle must be constructed over Storm Sewer Line "A" as shown on Plan Sheet 9 of 14. 2. All storm sewer lines must be flushed of dirt and debris which has accumulated in the pipe at the wye connections and curb inlet locations. Pipe openings at curb inlet locations should be blocked with plywood to allow for drainage but keep additional dirt from getting into lines during the paving operations. Villages of Coppell - Phase Two December 4, 1986 Page 3 3. Concrete footings must be placed on Storm Sewer Lines "B" and "C" at the outlet to the lake where the pipe intersects the existing millsap stone wall, per Plan Sheet 10 of 14. 4. The Storm Sewer Type "B" headwall must be placed at Station 12+60.67, Line "A" per Plan Sheet 9 of 14. 5. The bottom of all curb inlets must be grouted and sloped to drain per sheet SD-9 of the Standard Construction Details. Pipe connections must also be grouted to cover any exposed reinforcing steel and make wall of inlet flush with storm sewer pipe. In addition, the Contractor must replace inlet bottoms on the east 14' curb inlet at Station 2+44, Line "D" and the 4-grate combination inlet at Station 4+62, Line "B" because the concrete forms collapsed during placement. General Site Work 1. Contractor is required to return compacted subgrade to within 0.1' of the original Grade. Excess spoil can be leveled off on adjacent lots as long as adequate drainage is maintained. CONSULTING ENGINEERS Ref. No. 515348.10 CF COPPE2 Project:' Villages of Coppell - Phase Two Contractor: Dalcon Services Owner: Coppell M.U.D. No. 1 Developer: Dimension/Brooks Date: December 4, 1986 Items to .b.e.. Completed After Paving O~erat..i. ons are Complete: .S.a. hi. tary Sewer 1. All sanitary sewer manholes, cleanouts and other appurtenacies are to be adjusted to as-built paving Grades. 2. If "S"'s were not stamped on the face of curbs to indicate 4" sanitary sewer locations during the paving operations, the utility contractor is to paint an "S" on the curb at each location as specified on Plan Sheet 11 of 14. Wa ter 1. All 3/4" water services shall be adjusted and extended to the natural Ground and a meter yoke and meter box furnished and installed per Plan Sheet SD-16. 2. All fire hydrants, valve stacks and other appurtenacies are to be adjusted to as-built paving grades. 3. Contractor is to paint "W"'s on the face of the curb adjacent to each meter box if they were not stamped in the curb during paving operations. Storm Sewer 1. Contractor is to place all curb inlet tops, throats and paving leaveouts as specified on Plan Sheet SD-9. 2. Contractor is to flush all lines and grout pipe connections as required by M.U.D. project observer. Ge neral 1. A final walk through of all utilities will be made by City of Coppell, representatives of the City of Coppell, Dimension/Brooks, Coppell M.U.D. and Texas Water Commission to insure mutual acceptance by all parties. 3109 CARLISLE, SUITE 206 3901 W. PIONEER PARKWAY, SUITE 100 DALLAS, TEXAS 75204 ARLINGTON, TEXAS 76013 (214) 871-2126 (817) 461-,5868 Metro Villages of Coppell - Phase Two December 4, 1986 Page 2 2. Contractor will submit a marked-up set of plans showing all field ties and field changes to the design engineer to be incorporated into the "As-built" plans. 3. Contractor will furnish a maintenance bond for 10% of the contract amount to warrant the work for a period of one-year from the date of final acceptance by the Coppell M.U.D. Board of Directors.