6590 081 Amendment 2 Executed
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DocuSign Envelope ID: C7325D24-6FD9-40A6-BCA0-38EC6345AC07
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6590-081
NORTHWEST BOOSTER PUMP STATION--2ND AMENDMENT
PSA
Crystal Westbrook
N/A
NOVEMBER 16, 2021
21-2394
6590-081 PSA – Amendment #2 Page 1 of 2
SECOND AMENDMENT TO CONTRACT
BY AND BETWEEN THE CITY OF DENTON, TEXAS
AND KIMLEY-HORN AND ASSOCIATES, INC.
PSA 6590-081
THE STATE OF TEXAS §
COUNTY OF DENTON §
THIS SECOND AMENDMENT TO CONTRACT 6590-081 (“Amendment”) by
and between the City of Denton, Texas (“City”) and Kimley-Horn and Associates, Inc.
(“Engineer”); to that certain contract executed on January 15, 2020, in the original not-to-
exceed amount of $1,398,600 (the “Original Agreement”); amended on January 12, 2021
in the additional amount of $126,300 aggregating a not-to-exceed amount of $1,524,900
(the “First Amendment”) (collectively, the Original Agreement and the First Amendment
are the “Agreement”) for services related to the Northwest Booster Pump Station and Water
Transmission Main.
WHEREAS, the City deems it necessary to further expand the services provided by
Consultant to the City pursuant to the terms of the Agreement, and to provide an additional
not-to-exceed amount $248,500 with this Amendment for an aggregate not-to-exceed
amount of $1,773,400; and
FURTHERMORE, the City deems it necessary to further expand the goods/services
provided by Engineer to the City;
NOW THEREFORE, the City and Engineer (hereafter collectively referred to as the
“Parties”), in consideration of their mutual promises and covenants, as well as for other
good and valuable considerations, do hereby AGREE to the following Amendment, which
amends the following terms and conditions of the said Agreement, to wit:
1. The additional services described in Exhibit “A” of this Amendment, attached
hereto and incorporated herein for all purposes, for professional services related to
the Northwest Booster Pump Station and Water Transmission Main, are hereby
authorized to be performed by Engineer. For and in consideration of the additional
services to be performed by Engineer, the City agrees to pay, based on the cost
estimate detail attached as Exhibit “A”, a total fee, including reimbursement for
non-labor expenses an amount not to exceed $248,500.
2. This Amendment modifies the Agreement amount to provide an additional
$248,500 for the additional services with a revised aggregate not to exceed total of
$1,773,400.
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6590-081 PSA – Amendment #2 Page 2 of 2
The Parties hereto agree, that except as specifically provided for by this Amendment, that
all of the terms, covenants, conditions, agreements, rights, responsibilities, and obligations
of the Parties, set forth in the Agreement remain in full force and effect.
IN WITNESS WHEREOF, the City and the Consultant, have each executed this
Amendment electronically, by and through their respective duly authorized representatives
and officers on this date _________________________.
“CITY”
CITY OF DENTON, TEXAS
A Texas Municipal Corporation
By:
_________________________________
ATTEST:
ROSA RIOS, CITY SECRETARY
By:
_________________________________
“Engineer”
KIMLEY-HORN AND ASSOCIATES,
INC.
By:
_________________________________
AUTHORIZED SIGNATURE, TITLE
APPROVED AS TO LEGAL FORM:
By:
_________________________________
THIS AGREEMENT HAS BEEN
BOTH REVIEWED AND APPROVED
as to financial and operational
obligations and business terms.
_______________ ________________
SIGNATURE PRINTED NAME
__________________________________
TITLE
__________________________________
DEPARTMENT
DocuSign Envelope ID: C7325D24-6FD9-40A6-BCA0-38EC6345AC07
Vice President
Water Utilities
Director, Water Utilities
Stephen D. Gay
11/17/2021
MACK REINWAND, CITY ATTORNEY
SARA HENSLEY, INTERIM CITY MANAGER
AMENDMENT NO. 2 TO PROFESSIONAL SERVICES
AGREEMENT
ADDITIONAL SERVICES
Professional Services Agreement:
Northwest Booster Pump Station and Water Transmission Main
Amendment Scope of Services
Project Understanding
ENGINEER previously performed and finalized in July of 2020, a pressure plane and hydraulic
analysis study under the current Scope of Services, to evaluate future land use and anticipated
water demand at build-out of the proposed pump station service area. In July of 2021 CITY
requested ENGINEER to review the analysis based on updated development trends in the
Northwestern part of the City which were not anticipated in the original analysis. This review
indicated that the previously project water demand would need to increase, and thus require
modifications to the design of the proposed Northwest Booster Pump Station and Water
Transmission Main.
Scope of Services
The CITY has requested that the ENGINEER perform the following additional services as a
result of the findings discussed above:
• Evaluate the water system model including revised future demand projections
• Select pumps and evaluate pipe sizing per revised future demand projections and revise
design drawings and specifications
• Evaluate pipe sizing for water transmission main from the pump station site to the
existing northwest elevated storage tank and revise design drawings and specifications
Task 1 Design Management
ENGINEER will provide the following additional services in accordance with the Original
Contract:
A. Project Management
1. Incorporate design changes into pump station and pipeline design.
2. Sub-consultant Agreement Preparation
a. Prepare and execute two sub-consultant agreements.
EXHIBIT A
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Amendment No. 2
Northwest Booster Pump Station and Water Transmission Main August 9, 2021
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Northwest Booster Pump Station
Task 2 Pressure Plane Study and Hydraulic Analysis
ENGINEER will provide the following additional services in accordance with the Original
Contract:
A. Current Model Evaluation
1. Evaluate revised future land uses in accordance with City Planning Department
input to project revised firm pumping capacity of proposed pump station.
B. Hydraulic Analysis
1. Select split-case pumps and curves in accordance with revised demand
projections.
2. Update existing City water system model based on pump selections.
3. Develop revised suction header sizing and schematic layout.
4. Develop revised discharge header sizing and schematic layout.
5. Develop revised pump station piping schematic.
C. Technical Memorandum Addendum
1. Provide technical memorandum addendum documenting results of revised model
evaluation and hydraulic analysis.
D. Deliverables
1. Technical Memorandum and will be provided in .PDF format to City via e-mail
for review and comment.
Task 4 Final Design
ENGINEER will provide the following additional services in accordance with the Original
Contract:
A. Final Design
1. Preparation of engineering drawings. The following listing is an example of
anticipated plan sheets which will be revised to accommodate the increased
demand determined as part of Task 2:
a. Civil Sheets
i. Yard Piping
ii. Pump Station Mechanical Plan
iii. Pump Station Sections
iv. Water Line Profiles
b. Structural Sheets
i. Pump Station Structural Plan, Sections, and Details to
accommodate larger pumps, bridge crane, piping, and wall
penetrations
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Amendment No. 2
Northwest Booster Pump Station and Water Transmission Main August 9, 2021
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c. Electrical Sheets
i. Electrical Site Plan
ii. One Line Diagram
iii. Control Schematics
iv. Schedules
v. Instrumentation Block Diagram
vi. Floor Plan
vii. Lighting Floor and Cable Tray Plan
viii. Basement Lighting Floor and Cable Tray Plan
ix. SCADA System Diagram
x. SCADA Panel
xi. Electrical Details
xii. Generator Electrical Plan
2. Preparation of technical specifications associated with revised pump, bridge
crane, piping, motor control centers, VFDs, standby generator, and other
technical specifications which will be required to be revised to accommodate
design changes.
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Amendment No. 2
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Northwest Water Transmission Main
Task 11 Preliminary Design
ENGINEER will provide the following additional services in accordance with the Original
Contract:
A. Design Survey
1. Utility and Property Owner Coordination
a. Coordinate with DIG TESS and City of Denton to locate and mark
existing franchise and public utilities prior to performing the field
survey.
2. Design Survey
a. The limits of the survey shall be a 100-foot wide alignment generally
along the north side US Hwy 77 from UNT Discovery Park to State Hwy
Loop 288, with two crossings. The topographic survey will be
approximately 2,500 linear feet.
Task 12 Final Design
ENGINEER will provide the following additional services in accordance with the Original
Contract:
A. Easement Preparation
1. ENGINEER will prepare up to three (3) permanent water line easements and up
to three (3) temporary construction easements.
B. Final Design
1. Design steel pipe wall thickness and thrust restraint for 36-inch and larger pipe.
2. Prepare final design water line plan and profile drawings, surface repair, erosion
control, and details for approximately 2,000 linear feet of 30/36-inch water line
revised alignment.
3. Perform overall Drawings and technical specification updates to accommodate
increase in pipe size and buried steel pipe as a material option for water
transmission main.
4. Revised cathodic protection design drawings and technical specifications to
accommodate larger pipe size, and buried steel pipe as a material option and for
approximately 2,000 linear feet of 30/36-inch water line revised alignment.
C. Deliverables:
1. Final Design Submittal will be incorporated into the Final Design Deliverables
indicated in the Original Contract.
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Amendment No. 2
Northwest Booster Pump Station and Water Transmission Main August 9, 2021
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Compensation
The additional services described above will be accommodated by reallocation of existing
contract funds and by increasing the contract amount by $248,500. The following table
summarizes the recommended budget revisions and revised contract amount:
Task Original
Contract
Amendment
No. 1
Amendment
No. 2
Revised
Contract
Task 1 – Design Management $ 37,500 $ 4,200 $ 6,000 $ 47,700
Northwest Booster Pump Station
Task 2 – Pressure Plane Study and Pump Station Hydraulic Analysis $ 71,400 $ - $ 30,800 $ 102,200
Task 3 – Preliminary Engineering Report $ 180,700 $ - $ - $ 180,700
Task 4 – Final Design $ 481,500 $ 20,200 $ 130,800 $ 632,500
Task 5 – Construction Contract Documents $ 13,200 $ - $ - $ 13,200
Task 6 – Bid Phase Services $ 29,600 $ - $ - $ 29,600
Task 7 – Construction Phase Services $ 160,500 $ - $ - $ 160,500
Task 8 – Record Drawings Preparation $ 8,700 $ - $ - $ 8,700
Task 9 – Permitting $ 18,900 $ - $ - $ 18,900
Northwest Water Transmission Main
Task 10 – Alignment Study $ 38,100 $ - $ - $ 38,100
Task 11 – Preliminary Design $ 209,300 $ 57,700 $ 10,900 $ 277,900
Task 12 – Final Design $ 61,700 $ 24,100 $ 70,000 $ 155,800
Task 13 – Construction Contract Documents $ 9,900 $ - $ - $ 9,900
Task 14 – Bid Phase Services $ 15,100 $ - $ - $ 15,100
Task 15 – Construction Phase Services $ 51,300 $ - $ - $ 51,300
Task 16 – Record Drawings Preparation $ 7,600 $ - $ - $ 7,600
Task 17 - Permitting $ 3,600 $ 20,100 $ - $ 23,700
Totals: $ 1,398,600 $ 126,300 $ 248,500 $ 1,773,400
Duly executed by each party’s designated representative to be effective on the date subscribed by the
CITY.
BY:
CITY OF DENTON, TEXAS
BY:
ENGINEER
Title:______________________
Date:_______________________
Kimley-Horn and Associates, Inc
Title: John Atkins, P.E., Vice President
Date:____________________________
DocuSign Envelope ID: C7325D24-6FD9-40A6-BCA0-38EC6345AC07
Certificate Of Completion
Envelope Id: C7325D246FD940A6BCA038EC6345AC07 Status: Completed
Subject: Please DocuSign: City Council Contract 6590-081--Amendment 2
Source Envelope:
Document Pages: 8 Signatures: 5 Envelope Originator:
Certificate Pages: 6 Initials: 1 Crystal Westbrook
AutoNav: Enabled
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Time Zone: (UTC-06:00) Central Time (US & Canada)
901B Texas Street
Denton, TX 76209
crystal.westbrook@cityofdenton.com
IP Address: 198.49.140.104
Record Tracking
Status: Original
10/13/2021 9:19:22 AM
Holder: Crystal Westbrook
crystal.westbrook@cityofdenton.com
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Crystal Westbrook
crystal.westbrook@cityofdenton.com
Senior Buyer
City of Denton
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Catherine Clifton, Interim City Attorney
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Director, Water Utilities
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Electronic Record and Signature Disclosure created on: 7/21/2017 3:59:03 PM
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