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Home My WebLink AboutContract 29116 AMENDNIENT No. 3 THE STATE OF TEXAS § CITY SECRETARY CONTRACT NO. a91 I(o (No M&C Needed) COUNTY OF TARRANT § WHEREAS, the City of Fort Worth (City) and Alan Plummer Associates, Inc., (Engineer) made and entered into City Secretary Contract No. 27615, (the Contract) which was authorized by the City Council by M&C C-19022 on the 26'h day of March 2002; and WHEREAS, the Contract involves engineering services for the following project: Wastewater Conveyance and Treatment Evaluation Study WHEREAS, it has become necessary to execute Amendment No. 3 to said Contract to include an increased scope of work and revised maximum fee; NOW THEREFORE, City and Engineer, acting herein by and through their duly authorized representatives, enter into the following agreement which amends the Contract: 1. Article I of the Contract is amended to include the additional services specified in the proposal letter dated June 25, 2003, a copy of which is attached hereto and incorporated herein. The cost for the additional professional services to be performed by the Engineer totals $17,982.31. 2. Article II of the Contract is amended to provide for an increase in the maximum fee to be paid the Engineer for all work and services under the Contract, as amended, so that the total fee paid by the City for all work and services shall not exceed $1,011,669.78. All other provisions of the Contract which are not expressly amended herein shall remain in full force and effect. EXECUTED on this '; t� day of ' 2003, in Fort Worth, Tarrant County, Texas. A EST: ( Contract Authorization Gloria Person,tity Secretary Date APPROVAL RECOMMENDED: APPROVED: r- Dale . isseler, Marc O Director, Water De artment Assistant City Manager Alan Plummer Associates, Inc. ENGINEER By: Aj- G hb - P• Name: Richard H. Smith, P.E. Principal 7524 Mosier View Court, Suite 200 Fort Worth, TX 76118 APPROVED AS TO FORM AND LEGALITY: C;44�41, Assistant City Attorney ALAN PLUMMER ASSOCIATES, INC. Celebrating 25 Years of Service ENVIRONMENTAL ENGINEERS•DESIGNERS•SCIENTISTS 1978 _ 2oo3 JAMES L.ALTSTAETTER,P.E. 318-2900 JEFFREY E CAFFEY,P.E. C STEPHEN J.COONAN,P.E. June 25, 2003 PEGGY W.GLASS.Ph.D. DAVID A.GUDAL,RE. M-. Christopher Harder, P.E. A.LEE HEAD,III,RE. City of Fort Worth BETTY L.JORDAN,P.E. �J Water Department Services KENNETH G.LAWRENCE.P.E. CLETUS R.MARTIN,PE. 1000 Throckmorton Street LORETTA E.MOKRY Fort Worth, Texas 76102 TIMOTHY J.NOACK.P.E. MARK A.PERKINS.PE Re: City of Fort Worth Water Department ALAN H.PLUMMER.JR.,PE..DEE Wastewater Conveyance and Treatment Evaluation Study RICHARD H.SMITH,PE. Contract Number 27615;Project Number P171-0701710140020 CHARLES].TRACYRE. Contract Amendment No. 3 Proposal ALAN R.TUCKER,PE. P.JONATHAN YOUNG.Ph.D..P.E. Dear M,,• Harder: This letter describes our fee proposal for additional planning and evaluations in- connection with the above-referenced study. This proposal for additional fee is based primarily on the City's desire to perform a number of additional investigations and economic evaluations associated with consideration of using the City's Riverside Wastewater Treatment Plant(RWWTP) site as the location of a peak flow detention facility. These additional investigations and evaluations are not presently included in the above-referenced contract scope. The additional work includes the following items. • Planning of additional sewer model runs to determine required facility sizes and evaluation of the model results. • Conceptual design of and opinion of cost for the peak flow storage facility at the RWWTP site. • Conceptual design of and opinions of cost for wastewater transport facilities between the RWWTP site and the intersection of the West Fork and Little Fossil Interceptors. This additional work is necessary so that each study alternative can be compared on an equal basis. The wastewater transport facilities include: ■ A gravity flow"third barrel" ■ A lift station and force main • Resizing of Fossil Creek Satellite Wastewater Treatment Plant (FCSWWTP) facilities based on additional model runs. • Revision of FCSWW`1P opinions of cost • Economic evaluation of an additional project alternative that included the 7524 MOSIERVIEW COURT peak flow detention facility at the RWWTP and the resized FCSWWTP. SUITE 200 FORT WORTH,TEXAS 761 18-71 10 PHONE 817-806-1700 METRO 817-589-2226 FAX METRO 817-589.0072 —.apaienv.com Mr. Christopher Harder,P.E. Page 2 June 27, 2003 • Identification of non-economic issues for this additional project alternative. • Meeting with Freese and Nichols,Fort Worth Water Department staff, and Fort Worth Parks Department staff to discuss potential RWWTP site issues. • Coordination of the RWWTP peak flow detention facility schedule with other activities at the site. • Additional reporting for all items mentioned above. The attached Table 1 shows increased fees associated with each of the above items. The addition of Amendment 3 would revise the total contract amount to $1,011,669.78. Enclosed are five original copies of the Amendment. We have enjoyed working with the City on this project and feel that valuable information has been developed to help the City make decisions concerning options for meeting its wastewater collection and treatment needs. Very truly yours, ALAN PLUMMEER ASSOCIATES, INC. k-e,� Richard H. Smith, P.E. 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