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Exhibit 1 - Agenda Information Sheet - CO 2City of Denton _____________________________________________________________________________________ AGENDA INFORMATION SHEET DEPARTMENT: Procurement & Compliance ACM: David Gaines DATE: October 12, 2021 SUBJECT Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation, authorizing the approval of Change Order No. 2 to the contract between the City of Denton and Archer Western Construction, LLC, to provide additional construction services for the Hickory Creek Detention Facility project; providing for the expenditure of funds therefor; and providing an effective date (RFP 7061 – Change Order No. 2 in the not-to-exceed amount of $128,824.49, for a total contract award aggregated to $14,587,635.62). INFORMATION/BACKGROUND The Hickory Creek Detention Facility Project consist of the construction of a 3.5-million-gallon detention tank fed by a diversion structure and lift station that will be utilized to detain flows during storm events. This project also includes the construction of an additional lift station at the Pecan Creek Reclamation facility, the West Peak Flow Pump Station. These large infrastructure improvements will assist with future growth by improving the capacity in the wastewater system during peak flow conditions. The first change order of $811.13 was approved for a necessary FAA (Federal Aviation Agency) study before constructing a monopole at the Hickory Creek Detention Facility site, which will be used to transmit data back to the Water Reclamation team through SCADA (Supervisory Control and Data Acquisition). The design for this project was completed in August of 2017 and since then, there have been several changes in the City’s design standards, construction specification, type of equipment and material, means and methods used for construction, and construction techniques for delivering this type of project. As such, there are several changes required for the successful completion of this project and the following components of the project were modified resulting in additional implementation costs. 1. Change in material (galvanized steel to stainless steel) of the pipe supports in the wet well. 2. Change in the size of the waterline under railroad crossing and installation of a new meter vault. 3. Improve safety by the relocation of Electric Transformer, the addition of protective bollards, and installation of underground electric lines. 4. Improve stability by adding foundation piers to mitigate possible future settlement on the pump station foundation. 5. Other miscellaneous items included changes to the material of pipe to C900 and the color, as well as ultrasonic level mount and access doors. City Hall 215 E. McKinney Street Denton, Texas www.cityofdenton.com The total cost required to cover all the additional effort is $128,824.49 and staff recommends authorizing the proposed second changed order. It should be noted that the total change orders requested for this project are less than 1% of the overall cost of the project. PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS) On January 28, 2020, City Council approved a contract with Archer Western Construction, LLC, in the not-to- exceed amount of $14,458,000.00 (Ordinance 20-041). On February 12, 2021, Purchasing approved Change Order No. 1 with Archer Western Construction, LLC, in the not-to-exceed amount of $811.13, for a total not-to-exceed amount of $14,458,811.13. On October 11, 2021, this item will be presented to the Public Utilities Board (PUB) for consideration. RECOMMENDATION Award Change Order No. 2 with Archer Western Construction, LLC, to provide additional construction services for the Hickory Creek Detention Facility project, in a not-to-exceed amount of $128,824.49, for a total amended contract amount of $14,587,635.62. PRINCIPAL PLACE OF BUSINESS Archer Western Construction, LLC Irving, TX ESTIMATED SCHEDULE OF PROJECT This project will be started upon approval with an estimated completion date by July 2022. FISCAL INFORMATION These services will be funded from Certificate of Obligation Bond Funds. EXHIBITS Exhibit 1: Agenda Information Sheet Exhibit 2: Original Ordinance and Contract Exhibit 3: Change Order 1 Exhibit 4: LLC Members Exhibit 5: Ordinance and Change Order 2 Respectfully submitted: Lori Hewell, 940-349-7100 Purchasing Manager For information concerning this acquisition, contact: Chris Campbell, 940-349-7181. Legal point of contact: Marcella Lunn at 940-349-8333.