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WA9903-CS000526 (4) SHIMEK, JACOBS & FINKLEA, L.L.P. CONSULTING ENGINEERS 8333 Douglas Avenue, #820 Dallas, Texas 75225-5816 Fax (214) 361-0204 Phone (214) 361-7900 RONALD V. CONWAY, P.E. JOHN W. BIRKHOFF, P.E. JOE R. CARTER, P.E. GARY C. HENDRICKS, P.E. PAUL A. CARLINE, P.E. MATT HICKEY, P.E. May 26, 2000 ROSS L. JACOBS, P.E. I. C. F1NKLEA, P.E. JOHN R. BAUMGARTNER, P.E. Mr. Steve Dake Archite ral Utilities, Inc., dba AUI General Contractors as 76110)9 , Re: City of Coppell Addition of Pump Number 4 to the Village Parkway Pump Station We are in receipt of your letter dated May 23, 2000 concerning the cost of the corrections to the piping system adjacent to the recently installed butterfly valves at the Village Parkway Pump Station. As we have discussed over the telephone, we are of the opinion that the City of Coppell bears no responsibility for the extra work required to implement these corrections. After reviewing the project specifications, we find the 30-inch piping system should have been supplied and installed with the inside diameter of the pipe being 30- inches in diameter. Your shop drawings indicate the pipe is measured using the outside diameter rather than the inside diameter. As such, all cost associated with corrections to the 30-inch piping shall be borne by you. For the corrections to the 20-inch piping, Shimek, Jacobs & Finklea, L.L.P. hereby agrees to cover the cost associated with the necessary modifications. We offer no objections to the estimated cost outlined in your letter; however, since there is some shared responsibility in the modifications, we propose you eliminate the line item for overhead and profit. In addition, based on our discussions with you today, we understand the time required to complete the modifications may be as little as one-half of your original estimate. Please provide verification of crew hours, materials and equipment when submitting your invoice to our office. As stated in our letter dated May 22, 2000, we recommend the 24-inch valves be tested for leaks and a report made back to us prior to finalizing the scope of work required on these valves. If you have any questions or need additional clarification, please do not hesitate to contact this office. Gary C. Hendricks, P.E. cc: ~rr..lenn D. Hollowell, P.E Larry Davis j:\clericalNcoppell\1999-153\letters\const\k\butterfly valve piping cost. doe