HomeMy WebLinkAboutResolution - 2016-R0253 - Change Order To Contract - Archer Western Contractors LTD - SEWRP Project - 07/28/2016Resolution No.2016-R0253
Item No.6.11
July 28.2016
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.2 to that certain Contract No.11644 by
and between the City of Lubbock and Archer Western Contractors,LTD,for the SEWRP Solids
Handling Improvements Project, and related documents. Said Change Order No.2 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 bythe City Council on July 28, 2016
ATTEST:
Rebecca Garza,City Secretary
APPROVED AS TO CONTENT
DANIEL M.POPE,MAYOR
P.E.,Director of Public Works
APPROVED AS TO FORM:
RES.ChgOrd 2,Contract-Archer Western Contractors,LTD
7.5.16
CITY OF LUBBOCK
CHANGE ORDER
Change Order #:
2
Contractor:
Archer Western Contractors, LTD
Date:
June 30, 2016
BID/ITB/RFP #:
RFP #14-11644-TF
Contract #:
11644
Project Name:
SEWRP Solids Handling Improvements Project
"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
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 the thing to be constructed and is an integral part of the project objective All work that alters the nature of the thine to be
constructed or that is not an integral pan of the project objective must be let out for public bid. Description of change (alteration,
deviation, addition, or deletion) caused by conditions encountered during construction not covered by the specifications and
drawings of the project (aaach additional pages ijnecessary):
Per attached backup material this Change Order #2 includes the follmving items: Item 1) Provide & install gate valves on the PW and
NPW lines to the Headworks Odor Control Area at a cost of $1,829. Item 2) Required modifications to the 10" Supernatant Line at a cost
of $5.398. Item 3) 100' extension to 6-inch PW line to tie in location per RFl 41 at a cost of $10.386. Item 4) Provide & install
additional 6" glass -lined ductile iron pipe fittings per RFI 7 at a cost of $8,670. Item 5) Extend 4" Centrifuge drain to manhole at a cost
of $11.488. Item 6) Providing & installing 8" sludge pump suction line in Tank 7 to replace the line damaged from upset cover at a cost
of $11,328. Item 7) Additional 6" pipe & fittings at the DSPS sump pump piping, and 6" CPVC ball valve in the polymer room at a cost
of $9.543. Item 8) Work & materials for a new construction joint in the conveyor pit at a cost of $21.510. Item 9) Modifications to the
roof of the existing control room between Sludge Holding Tanks 6 & 7 per PCM 02 at a cost of $30,308, and 15 additional days. Item
10) 30 additional days due to changes and clarifications that have impacted the project schedule.
Where the Change Order is negotiated. the Change Order must be fully 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:
S33.556,000.00
B.
AMOUNT OF THIS CHANGE ORDER: (ourred approeal required joverS25,o00
$110,460.00
C.
PERCENT OF CONTRACT VALUE THIS CHANGE ORDER (B/A):
0.33%
D.
AMOUNT OF PREVIOUS CHANGE ORDERS:
S212,053.00
E.
TOTAL AMOUNT OF ALL CHANGE ORDERS (B+D):
S322,5I J.00
F.
PERCENT OF CONTRACT OF ALL CHANGE ORDERS (E/A): 15%Afaximma
0.96°lg,_
G.
NEW CONTRACT AMOUNT (A+E):
S33.878.513.00
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 directh or indirectly; from the work performed or modified by the Contractor under this Change Order.
This Change Order is not valid ,%ithout the foll,m me signatures (Please sign in order and return 3 orieinals with Contract Cover Sheet to
PurchasingRag§ontract Management Department):
(I)CONTRACTOR D e (2) PROJECT ARCHITECT/ENGINEER Date
Approved as to ntent: Approved as to Fonn:,7�[/�/� !,,
OWNER'S SENTATIVE �(4)CITY bate t /Y/
v h1Ill[ R(e /
(5) CAPITAL PROJECTS MANAGER Date (6) PURCHASING AND CONTRACT MANAGER Date
Change Orders ove/N5,000 require a Contract Cover Sheet and the following signatures
CITT / 9 r:
`��/ 7/28/2016 7/28/2016
(7) MAYOR 14 Dale (8) CIT SECRETARY Date
Council Date: July 28, 2016 Agenda Item #: 6.11 - Resolution #2016-R0251
PWC-045 (Rev 01/08)
C Ca ~'% 11^
Engineers... Working Wonders With Waters
July 12, 2016
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
1625 13th Street
Lubbock, TX 79457
Subject: Southeast Water Reclamation Plant Solids Handling Improvements Project
Change Order #2
Dear Mr. Fekete:
Attached with this letter is documentation for Change Order #2.
Item
Description
Cost Impact
Time Impact
Status
Contractor's
Request
Recommended
1
Provide & install gate valves on the PW and
+$1,829
No Time
No Time
Recommended by
NPW lines to the Headworks Odor Control Area
Carollo
2
Required modifications to the 10" Supernatant
+5,398
No Time
No Time
Recommended by
Line
Carollo
3
1 00'extension to 6-inch PW line to tie in location
+$10,386
No Time
No Time
Recommended by
per RA41
Carollo
4
Provide & install additional 6" glass -lined ductile
+$8,670
No Time
No Time
Recommended by
Iron pipe fittings per RFI 7
Carollo
5
Extend 4" Centrifuge drain to manhole
+$11,488
No Time
No Time
Recommended by
Carollo
Providing & installing 8" sludge pump suction
Recommended by
6
line in Tank 7 to replace the line damaged from
+$11,328
No Time
No Time
Carollo
upset cover
Additional 6" pipe & fittings at the DSPS sump
Recommended by
7
pump piping, and 6" CPVC ball valve in the
+$9,543
No Time
No Time
Carollo
polymer room
8
Work & materials for a new construction joint in
+$21,510
No Time
No Time
Recommended by
the conveyor pit
Carollo
Modifications to the roof of the existing control
Recommended as
9
room between Sludge Holding Tanks 6 & 7 per
+$30,308
+30 days
+15 days
modified by Carollo
PCM 02
10
Additional days due to changes and clarifications
No Cost
+30 days
+30 days
Recommended as
that have impacted the project schedule
modified by Carollo
Total Contract Impacts from CO #2 PCMs:
+$110,460
+45 days
Items recommended for inclusion with Change Order #2 are described in more detail as follows:
8M.301 Fekete0DZdxx 8911 Capital of Texas Highway North, Suite 2200, Austin, Texas 78759
P. 512.453.5383 F. 512.453.0101
aarollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 2
Item 1
Archer Western is requesting $1,829 for additional work required to install four 6" and 8" gate
valves on the potable water (PW) and non -potable water (NPW) lines associated with service to
the new odor control at the Headworks. The lines were shown, but the valves were omitted from
the plans. The gate valves provide needed utility isolation. The Engineer and RPR have
reviewed the request, and have found the cost and effort to be in line with what would be
expected.
The following documents are attached to support Item 1:
1. Potential Contract Modification (PCM) #12 dated April 19, 2016 from Jason Buoy of
Archer Western with the cost backup for the additional work.
2. PCM #12 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 2
40 feet of a 10" supernatant line that was intended to be reused was found to be corroded and
unusable upon excavation. Archer Western submitted a cost proposal for $5,398 replacement of
the corroded pipline. The Engineer and RPR have reviewed the request, and have found the
cost and effort to be in line with what would be expected for this unforeseen condition. The
Engineer recommends acceptance of this item.
The following documents are attached to support Item 2:
1. Potential Contract Modification (PCM) #13 dated April 15, 2016 from Jason Buoy of
Archer Western with the cost backup for the additional work.
2. PCM #13 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 3
Archer Western is requesting $10,386 for additional work related to RFI #41 to extend the new
6" potable water (PW) line serving the Solids Handling Building an additional 100' further than
indicated on Drawing 0OC13 to connect to an existing 6" PW line. The 6" PW line was shown on
Drawing 0OC13 to connect to an existing line at Pipe Coordinate V. Once uncovered, the
Contractor found the existing PW line at this location to be a 3" copper line, which was different
than what was shown on the Record Drawings. Through further investigation the Contractor
found that the 6" PW line intended for connection was located along the road on the north side
of the Maintenance Building. To be able to service the Solids Handling Building with this 6" PW
line the connection point would need to move to the north of Pipe Coordinate #7 by
approximately 100 feet. The Engineer agreed in the response to RR #41 that the additional
piping would be necessary. The Engineer and RPR have reviewed the request, and have found
the cost and effort to be in line with what would be expected.
890M.30I Feke"Zd=
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 3
The following documents are attached to support Item 3:
1. Potential Contract Modification (PCM) #14 dated April 15, 2016 from Jason Buoy of
Archer Western with the cost backup for the additional work.
2. PCM #14 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
3. RFI #41 dated March 31, 2015 from Jason Buoy of Archer Western.
4. Response to RFI #41 dated March 31, 2015 from Jason Anderson of Carollo Engineers.
Item 4
Archer Western is requesting $8,670 for additional work related to RFI #7 to provide and install
additional 6" glass -lined ductile iron pipe fittings associated with reconfiguration of the
underground digested sludge (DS) piping at Sludge Holding Tanks 6 and 7. In RFI #7 the
Contractor expressed concern that the four DS lines between the Digested Sludge Pump
Station and the Solids Handling Building would have to cross each other to connect DS Pump
#1 with Centrifuge #1, DS Pump #2 with Centrifuge #2, and DS Pump #3 with Centrifuge #3.
The problem was created because the Record Drawings for the existing DS piping did not
reflect the actual field conditions. The Engineer provided modified yard piping drawings to
establish the desired piping arrangement that would result in the correct pump being associated
with the correct centrifuge. The new piping arrangement required additional 6" glass -lined
ductile iron pipe fittings. The Engineer and RPR have reviewed the request, and have found the
cost and effort to be in line with what would be expected.
The following documents are attached to support Item 4:
1. Potential Contract Modification (PCM) #15 dated April 15, 2016 from Jason Buoy of
Archer Western with the cost backup for the additional work.
2. PCM #15 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
3. RFI #7 dated June 19, 2014 from Jason Buoy of Archer Western.
4. Response to RFI #7 dated June 19, 2014 from Rashi Gupta of Carollo Engineers.
Item 5
Archer Western is requesting $11,488 for additional work associated with installation of new 4"
drain piping in the Solids Handling Building from sample sinks to an existing manhole. This work
was required because the original drain piping within the slab was found to have corroded away,
leaving only the concrete encasement to carry water. The Engineer and RPR have reviewed the
request, and have found the cost and effort to be in line with what would be expected in
response to this unforeseen condition.
89MA.301 Fekete002.d=
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 4
The following documents are attached to support Item 5:
1. PCM #16 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #16 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 6
Archer Western is requesting $11,328 for additional work associated with providing and
installing a new 8" sludge pump suction line inside Sludge Holding Tank 7. This work was
required because the original floating digester cover had tilted and jammed, and in the process
the 12' deep steel skirt had damaged the original 8" sludge pump suction line and pipe supports.
The Engineer and RPR have reviewed the request, and have found the cost and effort to be in
line with what would be expected in response to this unforeseen condition.
The following documents are attached to support Item 6:
1. PCM #17 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #17 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 7
Archer Western is requesting $9,543 for additional work associated with providing and installing
additional 6-inch pipe and fittings to connect the Digested Sludge Pump Station sump pump
piping to manhole. This was required because the existing line to the manhole was found to be
only 2-inch diameter. Additional 6" CPVC Ball Valve used in the polymer room is also included
on this PCM. This additional valve will ease construction phasing for the new polymer system.
The Engineer and RPR have reviewed the request, and have found the cost and effort to be in
line with what would be expected.
The following documents are attached to support Item 7:
1. PCM #18 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #18 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
8900A.301 FekeIe002d=
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 5
Item 8
Archer Western is requesting $21,510 for additional work and materials needed to create a new
construction joint to allow staged construction of the conveyor pit. This approach was required
to allow City personnel continuous access to the center sludge truck loading bay of the Solids
Handling Building. The cost includes $6,803 for a steel road plate, $2,400 for forms, 15 yards of
flowable fill at $1,305, 4" SDR piping at $328, beams at $522, 195 hours of labor for $3,900 and
the Contractor's labor burden at $2,262, and small tools at $390 for a total direct cost of
$18,011. Overhead and profit, subsistence, and insurance and bonds total $3,499. The
Engineer and RPR have reviewed the request, and have found the cost and effort to be in line
with what would be expected.
The following documents are attached to support Item 8:
1. PCM #19 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #19 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
Item 9
Archer Western is requesting $30,308 for work involved to pour 12-inch wide, 24-inch high
beams on the roof of the existing control room between Sludge Holding Tanks 6 and 7 to
perform work outlined in PCM 02 at this area. This structural modification was required to allow
for the opening in the roof necessary to install the new sludge holding tank overflow piping. The
Engineer and RPR have reviewed the request, and have found the cost and effort to be in line
with what would be expected. The Contractor has not requested a time extension with this PCM
#22, but does request an extension of 30 days for the work performed under this PCM #22. The
Engineer and RPR have recommended an extension of 15 days for this work.
The following documents are attached to support Item 9:
1. PCM #22 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #22 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
3. Construction Detail developed by Gary Sagehorn of Carollo Engineers.
Item 10
Archer Western has requested 60 additional days due to changes and clarifications that have
impacted the project schedule. This includes work related to RFI's 71, 78, 80, 82, 83, & 85; DC-
6 (all electrical work), and work associated with the roof modifications at the existing Solids
Handling Building, and roof modifications at the Sludge Holding Tank Control Room that has
8900A.301 Fekele00T.dwx
carol lo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 6
caused delay in installing the overflow piping per PCM 02. The requested allotment for days is
as follows: RFI 71 (5), RFI 78 (3); RFI 80 (3); RFI 82 (3); RFI 83 (3); RFI 85 (3); DC-6 (10); Roof
Modification (30). The Engineer and RPR have reviewed the request, and have found the time
requested to be in line with what would be expected, except for the roof modifications, in which
case the recommendation is 15 days, for a total of 45 days added to the Contract.
The following documents are attached to support Item 10
8900A.30I Fekel 002dou
1. PCM #24 dated April 15, 2015 from Jason Buoy of Archer Western with cost backup for
the additional work.
2. PCM #24 Response from Jason Anderson of Carollo Engineers with the Engineer's
response to the proposal.
3. Design Clarification (DC) #6 dated June 24, 2015 from Teri Lytle of Carollo Engineers.
4. RFI #71 dated January 26, 2016 from Jason Buoy of Archer Western.
5. Response to RFI #71 dated February 5, 2016 from Kevin Angle of Carollo Engineers.
6. RFI #78 dated February 5, 2016 from Jason Buoy of Archer Western.
7. Response to RFI #78 dated February 9, 2016 from Kevin Angle of Carollo Engineers.
8. RFI #80 dated February 10, 2016 from Jason Buoy of Archer Western.
9. Response to RFI #80 dated February 16, 2016 from Kevin Angle of Carollo Engineers.
10. RFI #82 dated February 26, 2016 from Jason Buoy of Archer Western.
11. Response to RFI #82 dated March 5, 2016 from Kevin Angle of Carollo Engineers.
12. RFI #83 dated March 7, 2016 from Jason Buoy of Archer Western.
13. Response to RFI #83 dated March 12, 2016 from Kevin Angle of Carollo Engineers.
14. RFI #85 dated March 11, 2016 from Jason Buoy of Archer Western.
15. Response to RFI #85 dated March 12, 2016 from Kevin Angle of Carollo Engineers.
carollo.com
Mr. Zoltan Fekete, P.E.
Senior Engineer
City of Lubbock, Texas
July 12, 2016
Page 7
The change in contract price associated with items 1 through 13 is summarized below:
• Original contract price : $33,556,000
• Net increase in price of this change order: +$110,460
• Contract price with all approved change orders: $33,878,513
• Original contract time: 1,186 Days to Final Completion
• Net increase of time with this change order: +45 days (Phase 1)
• Contract time with all approved change orders: 1,251 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�
C �l/ 1
Hani E. Michel, P.E.
Project Manager
JEA:jea
cc: John Turpin, P.E.
Mary Gonzales
Gary Wheelwright
Jason Anderson, P.E.
8M.301 FeWte002d=
carollo.com