Backup Documents 5/23/2023 Item #16C1 ORIGINAL DOCUMENTS CHECKLIST & ROUTING SLIP I b C 1
TO ACCOMPANY ALL ORIGINAL DOCUMENTS SENT TO
THE BOARD OF COUNTY COMMISSIONERS OFFICE FOR SIGNATURE
Print on pink paper. Attach to original document. The completed routing slip and original documents are to be forwarded to the County Attorney Office
at the time the item is placed on the agenda. All completed routing slips and original documents must be received in the County Attorney Office no later
than Monday preceding the Board meeting.
** ROUTING SLIP**
Complete routing lines#1 through#2 as appropriate for additional signatures,dates,and/or information needed. If the document is already complete with the
exception of the Chairman's signature,draw a line through routing lines#1 through#2,complete the checklist,and forward to the County Attorney Office.
Route to Addressee(s) (List in routing order) Office Initials Date
1. N/A
2. N/A
3. County Attorney Office County Attorney Office id--5/2)3
4. BCC Office Board of County
Commissioners QL.d r/lpjfr/ s f ZS/Z 3
5. Minutes and Records Clerk of Court's Office )
914" 5l2- p-3 /D.o3
PRIMARY CONTACT INFORMATION
Normally the primary contact is the person who created/prepared the Executive Summary. Primary contact information is needed in the event one of the
addressees above may need to contact staff for additional or missing information.
Name of Primary Staff Peter Schalt, Public Utilities Sub-Regional Phone Number 239.269.4938
Contact/Department Engineering& Project Management
Agenda Date Item was 05/23/2023 Agenda Item Number 16.C.I
Approved by the BCC
Type of Document(s) Construction Change Order No.4 and Number of Original One
Attached Supporting Backup Information Documents Attached
PO number or account 70204&4500203084
number if document is
to be recorded
INSTRUCTIONS & CHECKLIST
Initial the Yes column or mark"N/A" in the Not Applicable column,whichever is Yes N/A(Not
appropriate. (Initial) Applicable)
1. Does the document require the chairman's original signature(instead of stamp)? Yes PS
2. Does the document need to be sent to another agency for additional signatures? If yes, N/A
provide the Contact Information(Name;Agency;Address; Phone)on an attached sheet.
3. Original document has been signed/initialed for legality. (All documents to be signed by Yes PS
the Chairman,with the exception of most letters,must be reviewed and signed by the
Office of the County Attorney.)
4. All handwritten strike-through and revisions have been initialed by the County Attorney Yes PS
Office and all other parties except the BCC Chairman and the Clerk to the Board.
5. The Chairman's signature line date has been entered as the date of BCC approval of the Yes PS
document or the final negotiated contract date whichever is applicable.
6. "Sign here"tabs are placed on the appropriate pages indicating where the Chairman's Please
signature and initials are required. do PS
7. In most cases(some contracts are an exception),the original document and this routing slip Yes PS
should be provided to the County Attorney Office at the time the item is uploaded to the
agenda. Some documents are time sensitive and require forwarding to Tallahassee within a
certain time frame or the BCC's actions are nullified. Be aware of your deadlines!
8. The document was approved by the BCC on_05/23/23 and all changes made Yes PS N/A is not
during the meeting have been incorporated in the attached document. The County an option for
Attorney Office has reviewed the changes,if applicable. this line.
9. Initials of attorney verifying that the attached document is the version approved by the Yes PS N/A is not
BCC,all changes directed by the BCC have been made,and the document is ready for the an option for
Chairman's signature. this line.
I:Forms/County Forms/BCC Forms/Original Documents Routing Slip WWS Original 9.03.04;Revised 1.26.05;2.24.05;11/30/12;4/22/16;9/10/21
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Procurement Services
Change Order Form
El Contract Modification 0 Work Order Modification Ej Amendment
Contract#: 19-7671 Change#: 4 Purchase Order#: 4500203084 Project#: 70204.1
re LLCnt Venture Contractor/Firm Name: PWC JointContract/Project SCWRF Reclaimed Water Storage Tank Impr.
Project Manager Name:
Peter Schalt Division Name: Engineering and Project Management Dept.
Original Contract/Work Order Amount $1,294,000.00 •. Original BCC Approval Date;Agenda Item#
Current BCC Approved Amount $ 1,294,000.00 " Last BCC Approval Date; Agenda Item#
Current Contract/Work Order Amount $ 1,294,000.00 N/A SAP Contract Expiration Date(Master)
Dollar Amount of this Change $100,471.00 7.76% Total Change from Original Amount
Revised Contract/Work Order Total $ 1,394,471.00 7.76% Change from Current BCC Approved Amount
Cumulative Changes 0.00 0.00% Change from Current Amount
Completion Date,Description of the Task(s)Change,and Rationale for the Change
Notice to Proceed 5/11/2020 Original 5/11/2021 Last Approved 2/20/2023 Revised Date N/A
Date Completion Date Date (Includes this change)
#of Days Added 0 Select Tasks El Add new task(s) E] Delete task(s) 0 Change task(s) El Other(see
below)
Provide a response to the following:1.)detailed and specific explanation/rationale of the requested change(s)to the task(s)and!or
the additional days added(if requested);2.)why this change was not included in the original contract;and,3.)describe the impact
if this change is not processed.Attach additional information from the Design Professional and/or Contractor if needed.
This Change Order is for the use of the remaining project allowance amount$53,195.39 and request
an additional amount of$100,471.00 for the work performed, as detailed below:
WD#2 —48" and 36" Check Valves
1. This change is for removing the existing stilling well pipe adjacent to the 48-inch pipe and installing one(1)48-inch and two(2)36-
inch check valves as shown on the Supplemental Drawing SD-2 due to the discovery of different site conditions regarding the
material of the existing pipes where the proposed valves are to be installed.
2. This change was not included in the original contract documents since the Contractor discovered that the existing pipes are
Prestressed Concrete Cylinder Pipe(PCCP)and not ductile iron pipe as shown on the record drawings upon verifying the
diameter of the pipes where the proposed check valves are to be installed. It was also discovered that two of the three pipes were
protruding beyond the face of the chamber's concrete wall and those portions require removal for the valve installation. Because
of the different pipe material and their protrusions,the check valves cannot be installed as shown on the design plans without
compromising the integrity of each existing PCCP. The work described in Work Directive#9 was not included in the original
contract because the project conditions encountered were unforeseen based on inaccurate existing utility record drawings.
Therefore, it was impossible to know the existing piping materials until construction was commenced and the existing piping was
excavated and identified.
3. Without this change the check valves would have not been able to be installed.The check valves are required in order to comply
with FDEP permitting requirements and in order to meet the design intent. If the check valves were not installed,then the project
would not meet permit requirements or be cleared by FDEP to be placed in service.
WD#3—Grating for Valve V-11
1. This change is for demolition of existing hatch and installation of new removable grating for valve V-11 at the Chlorine Contact
Chamber as shown on Supplementary Drawing(SD-3),which was included in the response to RFI R-333314-002-A Hatches at
the Inline Check Valves.
2. This change was not included in the original contract documents since the record drawings used to design the project did not
contain accurate information. The existing valve hatch for valve V-11 at the Chlorine Contact Chambers is too small to fit the
proposed check valve through for installation.This change is necessary to accommodate existing field conditions to be able to
install the new check valve.
3. Without this change the check valve replacement for valve v-11 would not be feasible.The check valve is required in order to
comply with FDEP permitting requirements and in order to meet the design intent If the check valve could not be installed,then
the project will not meet permit requirements or be cleared by FDEP to be placed in service.
WD#4— Discovered Ductbank 1 6 C 1
1. This change is for the removal of a section of existing duct bank in conflict with the new 30-inch 90-degree bend associated with
the proposed aboveground piping assembly to be installed The change included restoring conduits in accordance with NEC
requirements and fastening pull strings to each end of the severed conductor, in-lieu of splicing.
2. This change was not included in the original contract documents since during excavation for the new 30-inch 90-degree bend for
the aboveground piping assembly to be installed, the Contractor found an existing duct bank with two conduits that was in conflict
with the proposed piping. Upon further investigation the Contractor was able to confirm that one of the conduits was empty and the
other contained a conductor, but it was not energized. In order to install the new 90-degree bend and so the associated
aboveground piping assembly will fit within the available foot-print,the Contractor needed to remove a portion of the existing duct
bank and then restore the conduits, as described above, after the new pipe had been installed
3. Without this change the Contractor would not be able to install the new aboveground piping assembly needed as part of this
project,which would not allow for the proposed improvements to the IQ Tank.
WD#5 — Spool Pieces for 36" Check Valves
1. This change is for furnishing two(2)36-inch FLG x FLG ductile iron spool pieces and longer bolts to install the new spool pieces to
the 36-inch check valve thimble plates.
2. This change was not included in the original contract documents since Collier County requested the Contractor to install longer
bolts and a spool piece at each 36-inch check valve assembly to facilitate the installation of future isolation valves to be installed
as part of another project. By installing the spool pieces now Collier County will avoid having to provide additional labor to unbolt
and then re-tighten all the bolts on the check valve assembly when Collier County needs to install the isolation valves at a later
date.
3. Without this change Collier County would spend more time and money associated to unbolting and retightening all of the bolts on
the check valve assembly when they need to install the future isolation valves. This change represents a cost savings to the
Owner.
WD#6— Relocation of 20-inch Butterfly Valve
1. This change is for relocation of the 20-inch butterfly valve and installion of a longer spool piece on the above ground piping
assembly,as shown in the RFI R-333314-004-A response
2. This change was not included in the original contract documents since it was suggested by the Contractor through an RFI to allow
flow to resume while the new proposed piping was being installed. Relocating the valve was a cheaper alternative to adding
another valve, as suggested by the Contractor's RFI. Additionally, based on the Contractor's coordination with the plant's
operations staff, it's understood that moving the valve would allow the Contractor to reduce the shutdown duration required to
connect the new piping to existing plant piping,which would minimize interruptions to plant operations and staff.
3. Without this change the SCWRF would experience a longer duration shutdown while the Contractor was installing the proposed
piping,which would require additional plant staff to manage treatment processes affected by the shutdown.Also if not relocated, a
new valve would need to be purchased at an increased cost to the Owner.
WD#7 — Conflict with Ductbank for Pipe Support
1. This change is for Remove the existing duct bank in conflict with the new concrete pipe support for the aboveground piping
assembly to be installed. The change included restoring conduits in accordance with NEC requirements and fastening pull strings
to each end of the severed conductor. in-lieu of splicing.
2. This change was not included in the original contract documents since during excavation for the proposed aboveground piping
concrete support foundation, the Contractor found an existing duct bank with two conduits that was in conflict with the proposed
foundation. The existing duct bank's location was unknown Upon further investigation, the Contractor was able to confirm that one
of the conduits was empty and the other contained a conductor(not energized). In order to install the new concrete pipe support
foundation,the Contractor needed to remove a portion of the existing duct bank,then restore the conduits before continuing with
construction of the proposed concrete pipe support's foundation.
3. Without this change the Contractor would be unable to construct the proposed concrete pipe support at the location shown on the
plans. Moving the pipe support's location would require significant redesign efforts and costs,delay the contractor's progress
during the redesign and procurement of additional materials, and result in a more costly change to the work to procure additional
materials.
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WD#8 - Exploratory Excavation
1. This change is for performing exploratory excavation of the existing 36-inch diameter main that conveys water from the existing
Reclaimed Water Storage tank to determine if the material of the existing pipeline is ductile iron pipe(DIP)and if the pipe's
existing condition is suitable for cutting in a proposed isolation valve.
2. This change was not included in the original contract documents since the project was designed and bid with a proposed 36-inch
diameter isolation valve to be installed on what was understood to be an existing 36-inch diameter DIP. This understanding was
based on existing utility information provided to Stantec. During construction, it was determined that the existing pipeline material
is Prestressed Concrete Cylinder Pipe(PCCP). Installing a cut-in valve or connection on PCCP requires special adapters and
typically longer shutdown durations because of the additional time it takes to demolish and remove PCCP, as well as the curing
time needed for the concrete mortar around the new PCCP transition adaptors(these allow the pipe to transition from PCCP to
Ductile Iron or Polyvinylchloride(PVC) pipe).
3. During recent excavation associated with another project, Plant Operators observed a portion of the existing pipeline was DIP,
however,the length of existing DIP could not be determined at that time.The project delivery team recognized that if there's
sufficient length of existing DIP and it's in suitable condition, then the proposed 36-inch diameter isolation valve could possibly be
installed on the DIP instead of the PCCP. This would significantly reduce duration needed for a shutdown and contractor to
complete their work.
WD#9 — 36-inch Butterfly Valve Relocation
1. This change is for relocating the proposed 36-inch butterfly valve(Valve V15)and valve vault to a section of ductile iron pipe that
was recently excavated and uncovered
2. This change was not included in the original contract documents since the project was designed and bid with a proposed 36-inch
diameter isolation valve to be installed on what was understood to be an existing 36-inch diameter DIP. This understanding was
based on existing utility information provided to Stantec. During construction, it was determined that the existing pipeline material
is Prestressed Concrete Cylinder Pipe(PCCP). Installing a cut-in valve or connection on PCCP requires special adapters and
typically longer shutdown durations because of the additional time it takes to demolish and remove PCCP, as well as the curing
time needed for the concrete mortar around the new PCCP transition adaptors(these allow the pipe to transition from PCCP to
Ductile Iron or Polyvinylchloride(PVC)pipe). Recently, the Contractor performed an exploratory excavation of the existing 36-inch
diameter main that conveys water from the existing Reclaimed Water Storage tank and was able to determine the existing pipe
material is ductile iron pipe(DIP)and the existing condition is suitable for cutting in a proposed isolation valve.
3. If the proposed 36-inch diameter isolation valve is installed on the DIP instead of the PCCP, it would reduce duration needed for a
shutdown and contractor to complete their work. Furthermore, this change would have significant savings in construction costs
since no special adapters will be needed to install the valve.
WD#10— Installation of 36-inch Butterfly Valves
1. This change is to install Owner furnished 36' Butterfly Valves on the pipe spool I inline check valves assemblies in the prefilter
overflow chambers that are being installed under this project.Work to include valve installation, pipe support from floor of
cahmber, and installation of valve extension stems and stem guides. Pipe support, extension stems, and stem guides will be
Owner furnished; contractor shall provide material list and field measurement for ordering materials through Owners material
supplier(Ferguson). Materials may be contractor supplied if not available through Ferguson.
2 This change was not included in the original contract documents since it was a special request from Collier County The valves are
needed so that flow can be diverted through the prefilter overflow chambers and not flow through the check valve and to the reject
water storage pond.
3. This change will allow cleaning and maintenance of the center channel of the prefilter distribution basins.
WD#1 1 — Elimination of WD #9 from Scope of Work
1. This change deletes all equipment usage, labor and services associated with WD#9 and the work previously deleted by WD#9,
which deleted: installation of a concrete valve vault with motorized operating valve, electrical duct bank, modifications in the
electrical room in the Process Control Building, relocation of a potable water main, extension of a storm drain and installation of
vehicular guard posts. Contractor shall provide a credit for all equipment usage, labor, and services that will not be provided as
result of deleting this work from the Contract. Contractor shall also prepare a list identifying all purchased materials associated
with WD#9 and the work deleted by WD#9 to Collier County, then delivery all materials to the County, at a location to be
determined by the County.
2. This change was not included in the original contract documents since the project was designed and bid with a proposed 36-inch
diameter isolation valve to be installed on what was understood to be an existing 36-inch diameter DIP. This understanding was
based on existing utility information provided to Stantec that proved to be inaccurate. During construction, it was determined that
the existing pipeline material is actually Prestressed Concrete Cylinder Pipe(PCCP) Installing a cut-in valve or connection on
PCCP requires special adapters and typically longer shutdown durations because of the additional time it takes to demolish and
remove PCCP, as well as the curing time needed for the concrete mortar around the new PCCP transition adaptors(these allow
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the pipe to transition from PCCP to Ductile Iron or Polyvinylchloride(PVC) pipe), During the construction process, the Contractor
performed an exploratory excavation of the existing 36-inch diameter main that conveys water from the existing Reclaimed Water
Storage tank and was able to determine the existing pipe material is ductile iron pipe(DIP)and the existing condition is suitable for
cutting in a proposed isolation valve
However, during the time that has passed since the project was on a stop work notice, Collier County had re-evaluated the need to
install this valve and had determined that its installation will better suit plant operations if it is installed at a later date under a future
project, after this project has been completed. Additionally, there are other projects currently in progress at or being designed for
the SCWRF that will address any shutdown issues that were previously needed.
3. Collier County plant operators have determined that the installation of the isolation valve associated with WD#9 is not needed at
this time because it will hinder current plant operations,and they requested to have the valve installed later under a future project.
CO#2 — Backup Documentation and Final Amount
1. This change is to account for the actual and final costs associated to Change Order#2. Change Order#2 was originally issued with
estimated amounts. Once the work was performed,the actual costs total more than the CO#2 amount
2. Change Order#02 was issued with an agreed amount of$96,804.61, based on a breakdown of charges summarized in a table
provided on 5/26/21. However, this table, had some incorrect markups to hauling fees, environmental fees and taxes, plus there
were additional charges not originally contemplated in the proposal. After all of the work was completed and the final backup
documentation was compiled, we noticed the following changes from the original cost proposal
• Removal of trench box rental from material costs and placing under equipment,
• Removal of a supplier's representative visiting the site from material cost and placing under subcontractor,
• Removal of an invoice from 2/25/21 for additional#57 stone(work was performed from 1/22/21 through 2/11/21),
• Removal of a charge for a 30"fitting that was not used for this work directive,
• Removal of a charge for miscellaneous PVC,which was purchased on 2/12/21 (after the T&M sheets final date of 2/11/21),
• Addition of labor charges from 2/1, 2/2. 2/3. and 2/5(not included in the original proposal),
• Addition of charges for Mike Barr's(Superintendent) labor and vehicle hours(confirmed and approved by Collier County
Inspector email from 5/3/22),
• Addition of owned equipment charges, per approved T&M sheets,
• Corrected charge for 6" pump(was previously charged for one month, but was only used for 4 days for WD#01),
• Corrected charge for Lull/Forklift(was previously charged for one month, but was only used for 2 hours for WD#01).
The changes described above equate to an additional amount of$3,591.24.
3. This change is to properly account for the costs associated to Change Order#2(which included the work performed under WD#1)
so the Contractor's backup documentation properly match with the actual work performed.
Credit for Not Painting Aboveground DIP
1. This change is for a credit from the Contractor for not coating/painting the aboveground ductile iron pipe assembly, per the contract
requirements.
2. Collier County currently has a continuous service agreement with a separate contractor for painting/coating services for the
SCWRF.After some consideration, the County decided that it would be more cost-efective to use their painting contractor to paint
the aboveground DIP assembly than have PWC subcontract these services.
The credit for the work not performed is($10,359.30).
3. Using the County's continuous service agreement to paint the aboveground DIP assembly would be less costly than having the
Contractor subcontract these services
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Digitally signed by schart_p
schaIt p Date:1013.04.0308:23:48
Prepared by. .__-__--____ -04'00' ____ _._._ Date:
Peter Schalt, Project Manager III
Acceptance of this Change Order shall constitute a modification to contract/work order identified above and will be subject to all the same
terms and conditions as contained in the contract I work order indicated above,as fully as if the same were stated in this acceptance. f he
adjustment,if any, to the Contract shell constitute a full and final settlement of any and all claims of file Contractor/Vendor I Consultant I
Cesium'Professional arising r.,,t of or related to the change set forth herein,including claims for iri ,,ac 1 amid delay costs.
Accepted by ,. /1/7 .....
- _ ?
'y`� .____ --...._... date.
Mike 'man, Profecl-Manager.PWC Joint Venture LLC
Approved by _ Miguel Perez PE 1 1-23
S:antec
Ka ri ov i c h W a n e Digitally signed by KarlovichWayne
Approved by Date:2023.04.0312:58:36 04'00' Date:
Wayne K.;rrluvich,P F , Supervising Project Manager,Sub-Regional Utilities
P a j e rC ra i g Digitally signed by PajerCraig
Approved by. - Date:2023.04.03 13:58:30-04'00' Date:
Craig Pap r. P.E. Sib Regional Utilities Director
Z i m m e r m a n S u e Digitally signed by ZimmermanSue
Approved by Date:1013.04.14 10:31:09-04'00' Date:
Priscilla Dona, Procurement Strategist-Procurement
Revised 10:2812(114 f Drnt;vms litho may require additional 51r1131 res may include NI SeparJt?Sheri i _PROCUREMENT USE ONLY
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ATTEST: BOARD OF COUNTY COMMISSIONERS
Crystal K. Kinzel,Clerk of Courts COLLIER COUNTY, FLORIDA
&Comptroller
By 0.G By: —�
•�, ' Rick LoCastro, Chairman
Dated: 4A3i
(SISAL) 9
•
•
4; ..... r
Appr ed o fo an legality:
By: TIA
Scott R.Teach
Deputy County Attorney
Change Order/Amendment Summary ! 6 C i
COST TIME
CO# AMD# Description Days New Justification
Additive(+) Deductive(-) Added Amount
Time request due Time extension associated with WD
1 to changes $0.00 $0.00 73 438 #1 due to unforeseen conditions
described in WD
#1 related to existing PCCP pipes.
Time request due Allow Contractor to use Allowance
2 to changes $0.00 $0.00 62 500 for costs related to WD#1 and time
described in WD extension associated to unforeseen
#2 conditions related to WD#2.
Time request due Time extension due to unforeseen
to WD#9 and conditions regarding procurement
3 delays in $0.00 $0.00 564 and delivery of materials, and
procurement of changes associated to WD#9.
Materials
Allowance Use and
Request Additional Allow Contractor to use Allowance
4 - Money for XDOCKti1XtliK $0.00 0 564 and request additional money for
Remaining Work $100,471.00 costs related to WDs 2-11
Directives
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Work Description Total From Additional
Directive Dollar Approved Funds
Number Value Allowance Needed
Funds
#2 Install 36"and 48"Check Valves $46,572.74 $46,572.74 0
#3 Install New Grating @ Valve V-11 $22,470.04 $6,622.65 $15,847.39
#4 Remove Portion of Existing Duct bank $2,328.01 0 $2,328.01
Due to Piping Conflicts
#5 Install Two Spool Pieces and Longer $9,390.29 0 $9,390.29
Bolts
#6 Relocate 20"Butterfly Valve had to 0 0 0
install
#7 Remove Portion of Existing Duct bank $406.97 0 $406.97
Due to Conflict with Pipe Support
#8 Exploratory Excavation to Determine $4,383.23 0 $4,383.23
Piping Materials to Install Isolation
Valve
#9 Relocate New 36"Butterfly Valve to 0 0 0
Proper Piping Materials Location Not
Performed-Removed from Contract
#I 0 Install Owner-Furnished 36"Butterfly $2,771.76 0 $2,771.76
Valves
#1 1 Eliminate Labor for Work Directive#9, $72,111.41 0 $72,111.41
Materials were Purchased-Stored by
County for Spare Parts
CO#2 Revision of Backup Documentation $3,591.24 0 $3,591.24
and Final Amount for Change Order
#2.
N/A Credit for Removal of Painting Ductile ($10,359.30) 0 ($10,359.30)
Iron Piping
Total Reconcile Additive& Deductive S100,471.00
Costs
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