Exhibit 1 - Agenda Information Sheet - Amendment 6City of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement
INTERIM ACM: Cassey Ogden
DATE: February 7, 2023
SUBJECT
Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation,
authorizing the approval of a sixth amendment to a Professional Services Agreement between the City of
Denton and Hazen and Sawyer, P.C., amending the contract approved by City Council on July 21, 2015, in
the not-to-exceed amount of $427,368.00; amended by Amendments 1-5 approved by City Council; said
sixth amendment to provide additional engineering services and permitting support for the Hickory Creek
Basin Peak Flow Detention Facility and the Hickory Creek Lift Station project; providing for the
expenditure of funds therefor; and providing an effective date (File 5768 – providing for an additional sixth
amendment expenditure amount not-to-exceed $164,300.00, with the total contract amount not-to-exceed
$1,578,006.00). The Public Utilities Board recommends approval (5 - 0).
INFORMATION/BACKGROUND
The City Council authorized the contract with Hazen and Sawyer, P.C. (Hazen) on July 21, 2015, for the
preliminary and final engineering design of the Hickory Creek Detention Facility project (HCDF) which
included concrete storage basins and a peak flow pump station to store peak wet weather flows, and then
discharge back into the Hickory Creek Interceptor when the flows subside. The first amendment added
additional work for the design of the Pecan Creek West Peak Flow Pump Station (PCWPFPS), which has
similar design concepts as HCDF. The design of the new Hickory Creek Lift Station (HCLS) and additional
pier foundation for HCDF were included in the second amendment. The third amendment added
construction administration services for HCLS and HCDF/PCWPFPS. The City of Denton and Kansas City
Southern permitting requirements were addressed with assistance from Hazen and Sawyer in amendment
number four. The fifth amendment added construction administration services to assist in the new Hickory
Creek Lift Station project closeout.
The proposed sixth amendment is for professional design and construction phase services to address
constraints at the Hickory Creek Detention Facility Construction (HCDF) and Pecan Creek West Peak Flow
Pump Station (PCWPFPS) project.
The amendment includes:
1. Redesign of the odor control foundation and electrical pad, due to excavation methods and to prevent
possible settlement issues at HCDF.
2. Evaluation of risks due to a 42” FRP pipe offset at HCDF.
3. Design of a retaining wall to eliminate adding additional backfill in the current flood plain, at
PCWPFPS.
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
4. This amendment allows for additional construction meetings at the request of the City and a review
of additional shop drawings.
There are no other amendments anticipated to the contract. Completion of the projects and close out of the
contract are expected to be in the first quarter of 2023.
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On July 21, 2015, City Council approved a contract with Hazen and Sawyer, P.C., in the not-to-exceed
amount of $427,368 (Ordinance 2015-205).
On April 5, 2016, City Council approved Amendment No. 1 with Hazen and Sawyer, P.C. in the not-to-
exceed amount of $112,758 (Ordinance 2016-098).
On February 7, 2017, City Council approved Amendment No. 2 with Hazen and Sawyer, P.C. in the not-
to-exceed amount of $192,239 (Ordinance 2017-034).
On August 13, 2019, City Council approved Amendment No. 3 with Hazen and Sawyer, P.C. in the not-to-
exceed amount of $470,449 (Ordinance 19-1839).
On January 12, 2021, City Council approved Amendment No. 4 with Hazen and Sawyer, P.C. in the not-
to-exceed amount of $144,150 (Ordinance 21-015).
On May 18, 2021, City Council approved Amendment No. 5 with Hazen and Sawyer, P.C. in the not-to-
exceed amount of $66,742 (Ordinance 21-015).
On January 23, 2023, the Public Utilities Board (PUB) recommended this item to the City Council for
consideration.
RECOMMENDATION
Award Amendment No. 6 with Hazen and Sawyer, P.C., to provide additional engineering services and
permitting support for the Hickory Creek Detention Facility and the Hickory Creek Lift Station project, in
the not-to-exceed amount of $164,300, for a total amended contract amount of $1,578,006.
PRINCIPAL PLACE OF BUSINESS
Hazen and Sawyer, P.C.
Dallas, TX
ESTIMATED SCHEDULE OF PROJECT
Completion of the projects is expected to be in the first quarter of 2023.
FISCAL INFORMATION
These services will be funded from Hickory Creek Detention Facility account 640163545. Requisitions will
be entered on an as-needed basis.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Original Ordinance, Contract, and Amendments
Exhibit 3: Ordinance and Amendment 6
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: David Brown, 940-349-8480.
Legal point of contact: Marcella Lunn at 940-349-8333.