Exhibit 1 - Agenda Information Sheet - CO 2City of Denton
_____________________________________________________________________________________
AGENDA INFORMATION SHEET
DEPARTMENT: Procurement & Compliance
ACM: David Gaines
DATE: December 17, 2020
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 Thalle
Construction Company, Inc., for the construction of the North South Phase II 36-inch/42-inch Water
Transmission Line Project for the City of Denton; providing for the expenditure of funds therefor; and
providing an effective date (IFB 6901 – Change Order No. 2 in the not-to-exceed amount of $113,189.27
for a total contract award aggregated to $7,944,136.98).
INFORMATION/BACKGROUND
The North South Water Main Phase II Project extends approximately 10,000 linear feet of 36-inch and 42-
inch pipeline from the 24-inch line along Roselawn Drive up to the Texas Department of Transportation
(TxDOT) facility at the intersection of northbound IH-35E Service Road and Bonnie Brae Road, with the
pipeline being within the Bonnie Brae Road right-of-way. This project is on the City’s water masterplan
and is needed to provide more adequate and reliable water service to customers. The City entered into a
contract with Thalle Construction Company Inc. on January 15, 2019 to complete the North South Phase II
Project.
Change Order No. 1 totaled $32,140.71 and was approved by Purchasing on March 17, 2020. This change
order covered additional message boards, changes due to utility conflicts, and modifications associated with
the redesign of the 20” water line.
The proposed Change Order No. 2 is comprised of the following:
• The original ordinance approved a contract amount of $7,798,807.00. The original contract was
eight cents short of the actual bid amount of $7,798,807.08. This Change Order adds the $.08 back
to the contract.
• 24” Flanged Connection – the size reflected on the plans is different than what was uncovered by
Thalle in the field requiring this change.
• Recycled asphalt millings placed from Roselawn to Corbin (section open cut for lateral crossing) –
no temporary repair measures were allocated in the original bid items. Millings were needed to
prevent further degradation of the roadway and provide a safe travelling surface for drivers.
• Area of 20” water line lowering; Private Property Access Easement required Water Gap/Breakaway
Fencing Improvements (not included in Change Order No. 1)
• Tie in a 12-inch main to the 42-inch main, providing 12-inch service for the new Courts at Bonnie
Brae Development, preventing an additional lateral line being installed across Bonnie Brae. This
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
work would have been performed next year under the Bonnie Brae Phase 3 Roadway project.
Performing this work through the North South Phase II contract with Thalle prevents the need to
interrupt residents a second time for the work to be performed in the next phase.
• 120 additional days accommodate for the boring time required near the railroad.
On June 17, 2012, City Council awarded the North-South Water Line Phases II and III design project to
Freese and Nichols, Inc., in the not-to-exceed amount of $435,701 (Ordinance 2012-147). There has been
a total of five design amendments totaling $616,873.60, for a total contract amount not-to-exceed
$1,052,571.60. Amendment 5 allowed a 10% invoice reduction from April 2020 to June 2020.
NTE Amount
PSA 4978 $435,701
Amendment No. 1 $26,654
Amendment No. 2 $53,800
Amendment No. 3 $140,113.60
Amendment No. 4 $396,306
Amendment No. 5 n/a
Total $1,052,571.60
PRIOR ACTION/VIEW (COUNCIL, BOARDS, COMMISSIONS)
On January 15, 2019, City Council approved a contract with Thalle Construction Company, Inc. in the not-
to-exceed amount of $7,798,807 (Ordinance 19-058).
On March 17, 2020, Purchasing approved Change Order No. 1 with Thalle Construction Company, Inc. in
the not-to-exceed amount of $32,140.71.
On December 14, 2020, this item will be presented to the Public Utilities Board (PUB) for consideration.
RECOMMENDATION
Award Change Order No. 2 with Thalle Construction Company, Inc., for the construction of the North
South Phase II 36-inch/42-inch Water Transmission Line Project for the City of Denton, in the not-to-
exceed amount $113,189.27, for a total amended contract amount of $7,944,136.98.
PRINCIPAL PLACE OF BUSINESS
Thalle Construction Company, Inc.
Alvarado, TX
ESTIMATED SCHEDULE OF PROJECT
This project has an estimated completion date by February 2021.
FISCAL INFORMATION
These services will be funded from Water Project funds.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Ordinance and Contract
Exhibit 3: Change Order No. 1
Exhibit 4: Ordinance and Change Order No. 2
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Robin Davis, 940-349-7713.
Legal point of contact: Marcella Lunn at 940-349-8333.