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Ordinance No. 15,022 ORDINANCE NO. 15,022 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF BAYTOWN, TEXAS, AUTHORIZING CHANGE ORDER NO. I TO THE WEST DISTRICT WASTEWATER TREATMENT PLANT SECOND FEED PROJECT WITH T CONSTRUCTION L.L.C., IN AN AMOUNT NOT TO EXCEED SEVEN HUNDRED TWO THOUSAND FIVE HUNDRED FIFTY-SIX AND NO/100 DOLLARS ($702,556.00); AND PROVIDING FOR THE EFFECTIVE DATE THEREOF. BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF BAYTOWN,TEXAS: Section 1: That the City Council of the City of Baytown,Texas, does hereby authorize Change Order No. 1 to the West District Wastewater Treatment Plant Second Feed Project with T Construction, L.L.C., in an amount not to exceed SEVEN HUNDRED TWO THOUSAND FIVE HUNDRED FIFTY-SIX AND NO/100 DOLLARS ($702,556.00). A copy of said change order is attached hereto, marked Exhibit "A" and made a part hereof for all intents and purposes. Section 2: This ordinance shall take effect immediately from and after its passage by the City Council of the City of Baytown. INTRODUCED, READ and PASSED by the affirmative vote of the City Council of the City of Baytown this the 27"' day of January, 2022. ANDON CAPETILL , Mayor ATTEST: ��QFpa�,YTQu� o ^'c a � a o n ° ANGELA J KSON, Cit k ,• a m' tnti 6�cf 'n. ICY APPROVED AS TO FORM: `. 5 /i d TREVOR FANNING, Interim City Attorney RAKaren AndersonlORDINANCES 202212022.01.271ChangeOrderNo I-TConstruction-WDW7'P-2ndFeedProject.doex EXHIBIT "A" CITY OF BAYTOWN �I PUBLIC WORKS& ENGINEERING 2123 Market St. Baytown,Texas 77520 BETTER BMTOWN CHANGE ORDER For WEST DISTRICT WWTP SECOND FEED Date of Issuance: 1/17/2022 Change Order No.: I Contractor: T Construction CoB Project No.: SS2101 Designer: Culp Engineering P.O. No.: 2201605 Explanation: This change order encompasses the following: Contractor is directed to install 24" DIPS DR 13.5 HDPE pipe instead of 26" IPS DR 17 HOPE pipe, which was specified in the bid documents. Separation between forcemains shall be no less than 12 inches. Fittings shall be HDPE and joints shall be butt fused. Thrust blocks are not required for bends less than 90 degrees. Previously purchased/manufactured DR 17 pipe shall be restocked/disposed of by Contractor. A letter from Culp Engineering, dated 1/17/22, and a proposal from T Construction,dated 1/17/22, are attached for reference. Description of Work Cost Time 1 Change from DR 17 to DR 13.5 Pipe, as described above $ 702,556.00 120 Days 2 $ - Days 3 $ Days 4 $ Days Please attach back-up documentation Cost&Time Chance Summary Cost Time Original Contract: $ 3,193,516.00 319 Days Previous Change Order(s): $ - Days Contract prior to this change order: $ 3,193,516.00 319 Days Net increase (decrease) from this change order $ 702,556.00 120 Days Revised Contract: $ 3,896,072.00 439 Days Finance Approval: Date: RECOMMENDE RECOMMENDED: By: e: ta✓ ! .r BYy� Date: �- 01/14/2022 Design Engineer ry Director of Public Works&Engineering ACCEPTED*: APPROVED: Date: 01/14/2022 By: Date: Contractor City Manager *Contractor agrees to perform change(s)included in this Change Order for the price and time indicated. The prices for changes included all costs associated with this Change Order. No work is to be done until this change order is executed-No payment to the Contractor(or Consultant)shall be made for work included in the change order until the Contractor's pay estimate is updated. Revise the project plans and specifications as referenced and insofar as the original project drawings and specifications are inconsistent,this Change Order governs.Upon execution by all parties,the following changes identified for the contract value and/or contract time shown,are made part of the contract. Construction 1 of l D16 Revised 2020 U L P Culp Engineering, LLC 24301 Brazos Town Crossing#500-06 ENGINEERING, LLC Rosenberg, TX 77471 713-898-1977 January 17, 2022 Frank O. Simoneaux, JR., PE. CITY OF BAYTOWN Public Works & Engineering 2123 Market St. Baytown, TX 77520 RE: West District WWTP Second Feed Dear Mr. Simoneaux: One of the requirements in implementing projects for wastewater in the City of Baytown is the submission of the plans to the TCEQ. TCEQ generally issues a notice of receipt, but TCEQ has no obligation to respond. Culp Engineering submitted the plans to TCEQ as required in June 2021. Since we did not receive a receipt, we contacted them monthly until someone responded. Eventually Baltazar Lucero-Ramirez responded, and requested additional documents that we sent them. They emailed us a response on December 14, 2021, the day after our preconstruction conference, in which they asked us to confirm that the working design exceeded 150 psi working pressure. The system which we designed had only a working pressure of 125 psi. So, we coordinated with the City, contractor and construction project manager. We determined that the required DR of the sanitary sewer force main needed to be DR 13.5 or less, rather than the DR-17 designed. At our sizes DRA 3.5 pipe is one-inch thicker than DRA 7 pipe, and DRA 1 is 2-inches thicker at our diameters so we asked Kimley Horn to reevaluate whether 30-inch IPS DRA 3.5, 30-inch IPS DRA 1 would perform within reasonable expectations of the previously recommended size. After we learned that the change order would exceed 25% of the construction cost, we requested 24-inch DIPS DRA 3.5 material as well. We also looked at other ways of reducing the overall costs by tightening specifications that had room for revision. One of the items we reviewed was the separation distance between the two force mains. After discussion, and review of the rational for the separation distance, we were able to reduce the bottom trench width from 14.7 feet to 8 feet for most of the HDPE run. This reduces the amount of cement stabilized sand by about half, and excavation, fill and soil disposal by about 1/3. On December 29, we received confirmation that both 30-inch DRA 3.5 and 30-inch DR- 11 HDPE pipe would not change the pumping requirements at the two lift stations. On Project Number: Page 1 of 2 Baytown001 West District WWTP Second Feed January 17, 2022 January 13, we received confirmation that 24-inch DIPS DR 13.5 would also not require changes in the pumps at the lift station. During the discussion of the prices, Culp was asked to determine if any form of thrust block or concrete collars is required at corners and bends. Culp has determined that thrust blocking is not required for fused HDPE bends, and that mechanical joints are also not required. On January 5, 2022 we received prices from the contractor for the required changes to comply with TCEQ. On January 17, 2022 we received the prices for the 24-inch DIPS DR 13.5 with the specification change for trench width reduced. Therefore, Culp Engineering recommends that the system be revised to include the following changes: 1. Increase the pipe size and strength to 24" HDPE DIPS with DR 13.5. 2. Not require mechanical joints for any sections of HDPE fused pipe joints and bends. 3. Not require concrete collars for any portion of the HDPE portion of the system with stationing less than 43+00. 4. Allow the trench to be reduced to 8-feet in all places where existing infrastructure requires a wider trench. The trench will still need to be wider in the stretch between station 22+50 and 25+00 due to the existing detention pond outfall manhole which is 8-foot in diameter. I have included the marked up detail for the trench in this submission. The change in cost for implementing this system is shown on change order number 1. If you should have any questions, please email me at Dwayne@CulpEngineering.com or call me at 713-898-1977. CULP ENGINEERING, LLC Te egistered Engineering Firm F-17095 Dwayne . Culp, Ph. ., P.E CFM President X:\BAYTOWN Sanitary Sewer\09-Const\09C-ContractMng\02-Change Orders\CO-1\Cover Letter C01 20220114.docx Attachments: Marked up Sheet 4.21 "' C&L Project Number: Page 2 of 2 w EMINa,= Baytown001 a W • W LL O O w N i o .����..w..m.....nmmm.a.rr.r.mum.ua.wu... •• ....a..•.... _ " Mill TYPICAL CROSS mSECTION m& EMBEDMENT DETAIL AIR RELEASE VALVE ws NTS min ".......,....,....m..............m..�,....,m 4.21 --e-- T CONSTRUCTION, L.L.C. 12605 McNair St' Houston,Texas 77015 ' Ph.832-582-8420 ' Fx.832-582-8421 January 14,2022 City of Baytown Aft.Mr.Neil Barnsdale 10375 Richmond Ave,Suite 1625 Houston TX 77042 RE:24"DIPS DR 13.5 Sanitary Sewer Force Main w/HDPE Fittings Mr. Barnsdale, T Construction,LLC is pleased to provide a proposal to install 24"DIPS DR13.5 in lieu of the 26"IPS DR17,which was specified in the original bid documents. Original Contract Items ITEM DESCRIPTION UNIT QTY UNIT EXTENDED PRICE 9 Furnish and Install 26" IPS DR 17 HDPE(Black LF 7300 $175.00 $1,277,500.00 with Green Stripes)Sanitary Sewer Pipe Including Backfill,Haunchin&Bedding&Embedment Foundations As Required, Complete In Place 9A Furnish and Install 30"IPS DR 13 HDPE(Black with LF 600 $250.00 $150,000.00 Green Stripes)Sanitary Sewer Pipe Including Backfill, Haunching,&Bedding&Embedment Foundations As Required,Complete In Place 10 Furnish and Install 26"IPS DR 17 45 Degree Bend EA 20 $1,200.00 $24,000.00 with M.J. Fittings and Thrust Block,Complete in Place 11 Furnish and Install 26"IPS DR 17 22.5 Degree Turn EA 4 $2,000.00 $8,000.00 with M.J. Fittings and Thrust Block,Complete in Place 11 B Furnish and Install 30"IPS DR 13 35 Degree Turn EA 2 $2,630.00 $5,260.00 and Thrust Block,Complete in Place 11 C Furnish and Install 30"IPS DR 13 55 Degree Turn EA 2 $3,012.00 $6,024.00 and Thrust Block,Complete in Place 11 D Furnish and Install 26"IPS DR 17 x 30"IPS DR 13 EA 8 $2,005.00 $16,040.00 PVC Reducer with Thrust Block,Complete in Place 12 Furnish, Install,Bore,and Jack 36"ID Steel Pipe LF 170 $925.00 $157,250.00 Casing with RACI Spacers Under Thompson Park Drive, Complete in Place Total $1,644,074.00 New 24" DIPS DR 13.5 Items ITEM DESCRIPTION UNIT QTY UNIT EXTENDED PRICE 9 Furnish and Install 24"DIPS DR 13.5 HDPE(Black LF 7300 $239.20 $1,746,160.00 with Green Stripes)Sanitary Sewer Pipe Including Backfill,Haunchin&Bedding&Embedment Foundations As Re uired,Com lete In Place 9X Restock of 26"IPS DR17 HDPE(Per Approved LF 2000 $76.50 $153,000.00 Submittal 9A Furnish and Install 24"DIPS DR 13 HDPE(Black LF 600 $239.20 $143,520.00 with Green Stripes)Sanitary Sewer Pipe Including Backfill, Haunching,&Bedding&Embedment Foundations As Required, Complete In Place 10 Furnish and Install 24"DIPS DR 13.5 45 HDPE EA 20 $4,225.00 $84,500.00 Degree Bend,Com lete In Place 1of1 11 Furnish and Install 24" DIPS DR 13.5 HDPE 22.5 EA 4 $4,225.00 $16,900.00 Degree Bend, Complete in Place. 11B Furnish and Install 24" DIPS DR 13.5 HDPE 35 EA 2 $3,800.00 $7,600.00 Degree Bend,Complete in Place 11 C Furnish and Install 24"DIPS DR 13.5 HDPE 55 EA 2 $4,000.00 $8,000.00 Degree Bend, Complete in Place. 11 D Furnish and Install 24"DIPS DR13.5 x 30" IPS DR EA 8 $3,500.00 $28,000.00 13 HDPE Reducer,Complete in Place 12 Furnish, Install,Bore,and Jack 36"ID Steel Pipe LF 170 $935.00 $158,950.00 Casing with RACI Spacers Under Thompson Park Drive, Complete in Place Total $Z346,630.00 This price includes Mobilization, Labor, Equipment, Material,Trench Safety,Confined Space Entry and Supervision. Note: T Construction proposes to use 24" DIPS DR13.5(instead of 26" IPS DR17 and 30" IPS DR 13.5), utilize minimum pipe separation of 12"(total trench width is approx.7'-8'),all fittings will be fused HDPE.DI and MJ not required except for the points of connection to existing force mains, no thrust blocks for bends less than 90 degrees previously ordered 26"DR17 IPS HDPE will be disposed of by T Construction. If this proposal is approved on 1/28/2022,additional time required is 120 days. It is understood that no additional compensation will be made for this delay. If you have any questions, please don't hesitate to contact me. Sincerely, Brandon Flores Project Manager T Construction,LLC Phone: (832)582-8420 Fax:(832)582-8421 Email: bfloresCatconslructionllc.com 2of1