HomeMy WebLinkAboutResolution - 2022-R0219 - Change Order No. 3 Contract 15325 with Red River Construction 5.10.19Resolution No. 2022-RO219
Item No. 7.11
May 10, 2022
RESOLUTION
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
for and on behalf of the City of Lubbock, Change Order No. 03 to that certain Contract No.
15325 by and between the City of Lubbock and Red River Construction for the Southeast Water
Reclamation Project — Plant 3 Improvements, and related documents. Said Change Order No.
03 is attached hereto and incorporated in this resolution as if fully set forth herein and shall be
included in the minutes of the City Council.
Passed by the City Council on May 10, 2022
DANIEL M. POPE, MAYOR
ATTEST:
Reb a Garza, City Secre
APPROVED AS TO CONTENT:
Jesica achern, ASsis ity Manager
APPROVED AS TO FORM:
& h-"&
K lli Leisure, Assistant City Attorney
ccdocs/RES.Contract 15325 CO#3 - SEWRP Plant 3
04.21.22
Office of Purchasing and Contract Management
Change Order
Contract No: 15325 Contractor: Red River Construction
Change Order No: 3 Contract Title: SEWRP — Plant 3 Improvements Project
Bid/RFP No: 20-15325-CM Project No: 92444.9242.30000
"Change Order" means a written order to a Contractor, executed by the Owner, in accordance with the Contract authorizing an addition to, deletion
from or adjustment or revision of the requirements of the Contract documents, or an adjustment to the compensation payable to the Contractor, or to
the time for performance of the Contract and completion of the project, or a combination thereof; which does not alter the nature of project and is an
integral part of the project objective. Adjustments to "Estimated Quantities" to a line time in a Unit Price Contract do not require a Change Order. All
work that alters the nature of the construction or that is not an integral part of the project objective must be let out for public bid.
Description of Change (alteration, deviation, addition, or deletion) caused by conditions encountered during conatrnetian net mvprpA t,., rt.p
specifications and drawings of the project attached additional pages is necessary:
Per attached backup material, this Change Order #2 includes the following items: Item 1) Coating of the 30-inch aeration basin influent pipe in the piping gallery at
a cost of+$23,715.53. Item 2) Replacement of existing WAS check valve at a cost of+$10,208.33 and 2 additional days of construction time. Item 3) Pulling two
new RAS pumps to unclog the impellers of unexpected material five times at a cost of+$28,060.82 and 7 additional days of construction time. Item 4) Additional
pumping and cleaning of the two Plant 3 primary clarifiers at a cost of+$98,373.59 and 30 additional days of construction time. Item 5) Transport of two RAS
pumps to Smith Pump Co. for examination, and subsequent repair at a cost of+$42,666.67. Item injection credit of -$100,000.00.
Where the Change Order is negotiated, the Change Order must be f dly documented and itemized as to costs, including material quantities, material
costs, taxes, insurance, employee benefits, other related costs, profit and overhead. Where certain unit prices are contained in the initial Contract, no
deviations are allowed in computing negotiated change order costs.
ITEMIZED COSTS MUST BE FULLY DOCUMENTED AND ATTACHED TO THIS FORM.
ITEM
DESCRIPTION
AMOUNT
A.
ORIGINAL CONTRACT VALUE:
$7,257,052.00
B.
AMOUNT OF THIS CHANGE ORDER: Note: Council approval required if (+/-) $50,000
$103,024.94
COST CENTER 92444 1 ACCOUNT: 9242.30000
C.
PERCENT OF CONTRACT VALUE THIS CHANGE ORDER /A
1.42%
D.
AMOUNT OF PREVIOUS CHANGE ORDERS:
$699,977.03
E.
TOTAL AMOUNT OF ALL CHANGE ORDERS +D
$803,001.97
F.
PERCENT OF CONTRACT OF ALL CHANGE ORDERS A : 25%maximum)
11.07%
G.
NEW CONTRACT AMOUNT A+E :
$g 060 053.97
It is mutually agreed that the above dollar amount and the time extension, as applicable, as set forth in this Change Order constitutes full compensation
to the Contractor for all costs, expenses and damages to the Contractor, whether direct, consequential or otherwise, in anyway incident to, or arising
out of or resulting directly or indirectly, from the work performed or modified by the Contractor under this Change Order.
This Change Order is not valid without the following signatures (please sign in order and rewrn 3 originals with the Contrad Cover Sheet to
Pu mlra—s= and Contract MM ement d
OM08/22
(1) Contractor
Date ( Project Architect/Engineer Date
(3) er's ntative *D&—
(5) Capital Pro' t Manager Date
5/ 10/2022
Date
Council Date: May 10, 2022 Agenda Item #:
(8)
C)
Date
Date —�
Date
7.11 Resolution #: 2022-RO219
PUR-45 (Rev 08/2018)
Engineers... Working Wonders With Water®
April 8, 2022
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
1314 Avenue K
Lubbock, TX 79401
Subject: SEWRP Plant 3 Improvements Project
Change Order #3
Dear Mr. Fekete:
Attached with this letter is documentation for Change Order #3.
Time
Item
Description
Cost Impact
Impact
Status
1
Coating of the 30-inch aeration basin influent pipe in
+$23,715.53
No Time
Recommended by
the piping gallery
Carollo
2
Replacement of existing WAS check valve
+$10,208.33
2 days
Recommended by
Carollo
Pulling two new RAS pumps to unclog the impellers
3
of unexpected material five times, plus additional
+$28,060.82
7 days
Recommended by
budget to pull the two pumps two more times (if
Carollo
needed)
4
Additional pumping and cleaning of the two Plant 3
+$g8,373.59
30 days
Recommended by
primary clarifiers
Carollo
5
Transport of two RAS pumps to Smith Pump Co. for
+$42
No Time
Recommended as
examination, and subsequent repair
,666.67
modified by Carollo
6
Credit for not epoxy injecting interior concrete
-$100,000.00
No Time
Recommended by
surfaces of the existing secondary clarifiers
Carollo
Total Contract Impacts from CO #1 PCOs:
+$103,024.94
+39 days
Items recommended for inclusion with Change Order #3 are described in more detail as follows:
Item 1
TCEQ 217 Subchapter M, §217.329 lists required color -coding for pipes in a wastewater
treatment facility. The exposed 30-inch influent pipe for the three Plant 3 aeration basins is not
painted the required color, and the WWTP has been cited by TCEQ for this in the past. WWTP
staff has requested the pipe be painted the required color to meet the requirements of TCEQ
217, and to avoid future citations.
8900B.30I22-04-08_Fekete.d= 8911 Capital of Texas Highway North, Suite 2200, Austin, Texas 78759
P. 512.453, 5383 F. 512, 453, 0101
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
April 8, 2022
Page 2
Red River Construction (RRC) has proposed $23,715.53 for their coatings subcontractor to coat
the 30-inch diameter pipe. The Engineer and RPR have reviewed the request, and have found
the cost to be in line with what would be expected.
The following documents are attached to support Item 1:
1. Potential Change Order (PCO) #016 dated November 24, 2021 from Health Staffeld of
RRC with the proposal and cost backup for the additional work.
2. PCO #016 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 2
During construction an existing WAS discharge line check valve was relocated from the east
end of the aeration basin piping gallery to the west end of the gallery, along with an existing
WAS pump. The check valve was later determined by WWTP staff to be in need of
replacement.
RRC proposed a cost of $10,208.33 and an additional 2 days of contract time to replace the
check valve. The Engineer and RPR have reviewed the proposal, and have found the cost and
effort to be in line with what would be expected, and also agree with the request for a 2-day
contract time extension associated with this additional work.
The following documents are attached to support Item 2:
1. PCO #017 dated February 17, 2022 from Health Staffeld of RRC with the proposal and
cost backup for the additional work.
2. PCO #017 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 3
The Plant 3 Improvements Project includes new a pair of new return activated sludge (RAS)
pumps associated with each secondary clarifier. The arrangement of the secondary clarifiers
and RAS piping, along with the site constraints required the use of vertical turbine solids
handling (VTSH) pumps. The new pumps are capable of passing a 3.6-inch spherical object.
The pumps ran perfectly for approximately two months, but then began to experience issues
with reduced flow, and ultimately one of the two pumps installed in Phase 1 construction
experienced a stoppage. The pump was pulled and found to be completely clogged with long
stringy fibrous material and trash, none of which should be found in RAS. It was later
determined that the fine screens at the Headworks had not been functioning for some time, and
flow was being bypassed to the coarse screen, allowing material that would not normally make it
past the Headworks to end up in the primary clarifiers, aeration basins, secondary clarifiers, and
ultimately, the RAS pump suction headers. RAS Pumps 3 and 4, as installed for Phase 1
construction, were pulled and sent to Smith Pump Company in Waco for disassembly and
8900B.30122-04-08_Fekete.dom
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
April 8, 2022
Page 3
evaluation. RAS Pumps 1 and 2 were installed in place of Pumps 3 and 4. In the weeks
following, Pumps 1 and 2 continued to experience reduced flow, but now that it was understood
what was the cause of the flow reduction the pumps would be pulled and cleaned, then
reinstalled. This has been done a total of five times to date.
RRC proposed a cost of $28,060.82 and an additional 7 days of contract time for pulling the
pumps five times. RRC also provided a quote of $4,485.94 for each additional instance of
pulling the pumps, which would be included in a future Change Order if needed. The Engineer
and RPR have reviewed the proposal, and have found the cost and effort to be in line with what
would be expected (with corrections to the totals as made by the Engineer), and also agree with
the request for a 7-day contract time extension associated with this additional work.
The following documents are attached to support Item 3:
PCO #019 dated March 8 from Health Staffeld of RRC, and corrected by Carollo
Engineers, with the proposal and cost backup for the additional work.
2. PCO #019 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 4
In relation to the issues experienced with trash and rags plugging the new RAS pumps, the
Contractor was requested to prepare a proposal to dewater and clean out the existing Plant 3
primary clarifier distribution box, and the two primary clarifiers. Restoring the full capacity of the
two primary clarifiers will help to prevent the problematic material from being passed on from the
primary clarifiers, and creating further problems in the downstream systems.
RRC proposed a cost of $98,373.59 and an additional 30 days of contract time for the additional
work associated with cleaning the primary clarifiers and related structures. The Engineer and
RPR have reviewed the proposal, and have found the cost and effort to be in line with what
would be expected, and also agree with the request for a 30-day contract time extension
associated with this additional work.
The following documents are attached to support Item 4:
1. PCO #020 dated March 25, 2022 from Health Staffeld of RRC with the proposal and cost
backup for the additional work.
2. PCO #020 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 5
As described in Item 3, RAS Pumps 3 and 4 were pulled and transported to Smith Pump
Company in Waco. Smith Pump Company disassembled both pumps, and produced a condition
assessment report, including recommendations for repair of the pumps. The motors were
8900B.30 122-04-08_Fekete.docx
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
April 8, 2022
Page 4
shipped separately from Waco to the Smith Pump Company motor shop in Dallas. The cost for
shipping, examination, and repair quoted by Smith Pump Company is $36,020.83.
RRC proposed a cost of $42,666.67 for the transportation, examination, repair work and
reinstallation associated with RAS pumps 3 and 4. The proposal also requested a 30-day
extension to the contract time. The Engineer and RPR have reviewed the proposal, and have
found the cost and effort to be in line with what would be expected, but do not find a basis for
requesting a 30-day contract time extension associated with this additional work.
The following documents are attached to support Item 5:
1. PCO #021 dated March 6, 2022 from Health Staffeld of RRC with the proposal and cost
backup for the additional work.
2. PCO #021 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 6
The Plant 3 Improvements Project specified the interior concrete surfaces of the existing
concrete basins would require repair of cracks with epoxy injection. After dewatering the existing
basins, the concrete was found to be in excellent condition. Because of the condition of the
concrete, epoxy injection has been reconsidered, and a credit for epoxy injection was requested
by the Owner.
RRC proposes a credit of $100,000.00 for not performing epoxy injection of cracks on the
interior concrete surfaces of the existing concrete basins. The Engineer and RPR have
reviewed the proposal, and have found the credit to be in line with what would be expected.
The following documents are attached to support Item 6:
1. PCO #022 dated March 6, 2022 from Health Staffeld of RRC with the proposal and cost
backup for the additional work.
2. PCO #022 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
8900B.30122-04-OB_Fekete.docu
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
April 8, 2022
Page 5
The change in contract price associated with items 1 through 11 is summarized below:
• Original contract price : $7,257,052.00
• Net increase in price of this change order: +$103,024.94
• Contract price with all approved change orders: $8,060,053.97
• Original contract time: 600 Days to Final Completion
• Net increase of time with this change order: +39 days
• Contract time with all approved change orders: 849 days to Final Completion
After you have had a chance to review this information, we are available to discuss any
questions or comments, at your convenience. Please contact, Jason Anderson, or myself with
any questions.
Thank you for the opportunity to provide construction phase services for the City of Lubbock.
We look forward to continuing to work with you and City staff on this project through its
successful completion.
Sincerely,
CAROLLO ENGINEERS, INC.
W'. �. �1'
Hani E. Michel, P.E.
Project Manager
JEAJea
cc: Josh Kristinek, P.E.
Mary Gonzales
Mark Aaron Carpenter
Jason Anderson, P.E.
8900B.30122.044 Fekete.docu
carollo.com