HomeMy WebLinkAboutResolution - 2021-R0043 - Amendment 1 to Contract 15511 with Carollo Engineers 2.9.21Resolution No. 2021-R0043
Item No. 6.7
February 9, 2021
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK:
THAT the Mayor of the City of Lubbock is hereby authorized and directed to execute
and on behalf of the City of Lubbock, Amendment No. 1 to the Professional Services Agreen
Contract No. 15511 regarding professional services for Southeast Water Reclamation Plant, P
3 Improvements, by and between the City of Lubbock and Carollo Engineers, Inc., a Delav
corporation, and related documents. Said Agreement is attached hereto and incorporated in
resolution as if fully set forth herein and shall be included in the minutes of the City Council.
Passed by the City Council on February 9, 2021
DANIEL M. POPE, MAYOR
ATTEST:
Reber arza, City Secrkao
APPROVED AS TO CONTENT:
Assistant City Manager
APPROVED AS TO FORM:
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elli Leisure, Assistant City Attorney
cedocs/RES.Amend #1 Agrmt- 15511 —Southeast Water Reclamation Plant, Plant 3 Improvements
01.11.21
Resolution No. 2021-R0043
AMENDMENT NO. 1
TO AGREEMENT BETWEEN THE CITY OF LUBBOCK
AND
CAROLLO ENGINEERS, INC., A DELAWARE CORPORATION
THIS IS THE FIRST AMENDMENT TO THE AGREEMENT 15511 dated and entered into the 13th day
of October, 2020 by and between the City of Lubbock ("City") and Carollo Engineers, Inc., a Delaware
Corporation ("Engineer").
The Consultant has entered into the Agreement with the City for performing professional services
associated with the Southeast Water Reclamation Plant, Plant 3 Improvements. City desires Engineer, and
Engineer agrees to perform, additional services associated with the replacement of 30-inch and 39-inch
PCCP piping, as set forth in Exhibit "A", attached to and incorporated herein.
This Amendment No. 1 increases the original Agreement, contract 15511, an additional fifty-six thousand
seven hundred and four and NO/100 dollars ($56,704.00) and grants a term extension of six (6) months for
the performance of services set forth herein.
All other portions of the original Agreement shall remain in place and are not altered by this amendment.
IN WITNESS HEREOF, the parties have executed this Amendment as of this 9th day of
February 2021.
CITY OF LUBBOCK
Daniel M. Pope, Mayor
ATTEST:
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Rebe a aria, City Seer a
APPROVED AS TO CONTENT:
Michael G. Keenum, P.E., CFM, City Engineer
Page 1 of 2
CAROLLO ENGINEERS, INC.
( da 5r,4t�
Hani Michel, P.E. Vice President
Scott Hoff, P.E., Senior Vice President
APPROVED AS TO FORM:
elli Leisure, Assistant City Attorney
Page 2 of 2
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EXHIBIT A
CONSTRUCTION PHASE SERVICES — AMENDMENT 1
FOR
CITY OF LUBBOCK, TX
SOUTHEAST WATER RECLAMATION PLANT
PLANT 3 IMPROVEMENTS PROJECT
BACKGROUND
The Southeast Water Reclamation Plant (SEWRP) operates two liquid stream treatment trains:
Plant 3 featuring conventional activated sludge, and Plant 4 featuring an IFAS process for
biological nutrient removal. The original construction of Plant 3 occurred in the 1960s and 1970s,
with some improvements being made in the mid-1990s. Plant 3 is generally in need of
rehabilitation and upgrades to improve treatment performance, reduce maintenance requirements,
and extend the service life of the treatment train. The City of Lubbock (CITY) elected to move
forward with a Phase 1 project to replace the air header and air distribution piping between the
aeration blowers and the diffusers, upgrade the secondary clarifiers, upgrade pumping of RAS and
WAS, and improve secondary scum handling. The CITY authorized the ENGINEER to provide
design services and prepare Contract Documents for construction of the Plant 3 Improvements
Project in December 2017. The design was completed in August 2019, and proposals were
received from qualified Construction Contractors in January 2020.
The selected General Contractor was excavating to locate return activated sludge piping to be
reconnected to new piping when it was discovered that upon removing the overburden on the
influent line to the Plant 3 aeration basins to a sufficient depth the excavation began to fill with
water coming from the influent line. After a significant pumping and isolation effort on the part of
the General Contractor, it was determined that the original 39-inch pre -stressed concrete cylinder
pipe (PCCP) installed in 1970 had seven large holes in the pipe crown within the length of the
initial excavation alone. Further uncovering of the line both upstream and downstream of the
original excavation exposed more holes in the pipe crown. Based upon the condition of the pipe,
there is a need to replace all 30-inch and 39-inch PCCP pipe between the Plant 3 primary clarifiers
and the aeration basins. This piping was not originally a part of the project, as this piping was
expected to have remained full at all times, and therefore would not be expected to exhibit crown
corrosion in the way that it has.
PURPOSE
This EXHIBIT A establishes the Scope of Work, the Time of Performance, and the Engineering
Services Budget for additional Construction Phase Services to be provided by the ENGINEER for
the CITY as a result of the unforeseen need to replace the pipelines between the primary clarifiers
and the aeration basins. This additional work requires an 8-week extension in the project contract
time, and associated additional engineering review time, meetings, and drawing production. The
engineering services will consist of the following:
• Section 900 — Special Services
January 5, 2021 - Exhibit A - Contract No. 13422 PAGE 1 of 2
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SECTION 900 SPECIAL SERVICES
Task 905 - Major Changes/Unforeseen Conditions
ENGINEER and RPR will provide additional services associated with replacement of the 30-inch
and 39-inch PCCP piping between the primary clarifiers and aeration basins.
1. Provide additional on -site RPR services for 20 hours per week for a period of eight weeks. See
Exhibit C for the Subconsultant's proposal.
2. ENGINEER to attend two additional meetings, perform additional submittal review and RPR
support, and provide updated Record Drawings reflecting the new piping, and changes to the
original RAS pump station design.
CONSTRUCTION PERIOD
The Scope of Work presented herein covers work -related tasks that will be required for an
additional contract period of 6 months, extending the Contract to April 11, 2023. As established
with the original Scope of Works, should the construction period exceed the allotted time, an
Amendment to this Contract may be required to extend the Field Services through completion of
construction. CITY and ENGINEER agree to review the Contractors progress on a quarterly basis
to determine ENGINEER staffing needs required to complete the project and make adjustments to
the budget as needed.
BUDGET
CITY and ENGINEER have established a not -to -exceed budget of $56,704 to complete all services
under this EXHIBIT A. This amount will not be exceeded without a contract amendment. CITY will
pay the ENGINEER hourly, for services identified in EXHIBIT A. Subconsultant services will be
billed at cost to ENGINEER with a 5 percent handling fee. The budget for each Task is presented
in EXHIBIT B. CITY and ENGINEER agree to allow redistribution of funds between Tasks as
appropriate to allow flexibility in providing the needed services within the not -to -exceed budget.
ENGINEER agrees to complete these services as delineated above. Should there be a Change in
Scope of Work or Time of Performance, then this can result in an amendment to this contract,
which will be negotiated at that time. The level of construction services provided by the ENGINEER
is highly dependent on the Contractor. Consequently, the CITY and ENGINEER agree to review
the job progress at the midpoint period and at the 75 percent complete point to determine the effort
required to complete job tasks and make appropriate adjustments to the budget as needed.
January 5, 2021 - Exhibit A - Contract No. 13422 PAGE 2 of 2