Backup Documents 12/12/2023 Item #16C 6 16C6
ORIGINAL DOCUMENTS CHECKLIST & ROUTING SLIP
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.
**NEW**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.
2.
3. County Attorney Office County Attorney Office Ji Al3
4. BCC Office Board of County
Commissioners ink/
14:11Z
5. Minutes and Records Clerk of Court's Office
PRIMARY CONTACT INFORMATION 4+
Normally the primary contact is the person who created/prepared the Executive Summary. Primary contact information is i eeded in the event one of the addressees
above,may need to contact staff for additional or missing information.
Name of Primary Staff Alicia Abbott,E.I.,PMP,Public Utilities Phone Number 239-252-5344
Contact/ Department Engineering& Project Management
Agenda Date Item was December 12,2023. Agenda Item Number 16C6
Approved by the BCC
Type of Document Mitchell&Stark Change Order#9 with Number of Original 1
Attached supporting backup Information Documents Attached
PO number or account 70135
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?
2. Does the document need to be sent to another agency for additional signatures? If yes, X AA
provide the Contact Information(Name; Agency;Address;Phone)on an attached sheet.
3. Original document has been signed/initialed for legal sufficiency. (All documents to be N/A
signed by 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's X AA
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 X AA
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. Add
AA
7. In most cases(some contracts are an exception),the original document and this routing slip X AA
should be provided to the County Attorney Office at the time the item is input into SIRE.
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 12/12/23 and all changes made during X AA N/A is not
the meeting have been incorporated in the attached document. The County an option for
Attorney's Office has reviewed the changes,if applicable. this line.
9. Initials of attorney verifying that the attached document is the version approved by the X AA 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.
16C6
Procurement Services
r County Change Order Form
Contract Modification 0 Work Order Modification
Contract#: 20-7769 Change#:[9 Purchase Order#: 4500204556 Project#: 70135.2
Contractor/Firm Name: Mitchell&Stark Construction,Inc. Contract/Project: 3CRWTP Reactor Tank#4
Project Manager Name: Alicia Abbott Division Name: Engineering&Project Management
Original Contract/Work Order Amount $ 3,843,000.00 7/14/20 11 F Original BCC Approval Date; Agenda Item#
Current BCC Approved Amount $ 3,843,000.00" Last BCC Approval Date; Agenda Item#
Current Contract/Work Order Amount $ 3,843,000.00 11/8/2023 SAP Contract Expiration Date(Master)
Dollar Amount of this Change $ 239,013,17 6.22% Total Change from Original Amount
Revised Contract/Work Order Total $ 4,082,013.17 6.22% Change from Current BCC Approved Amount
Cumulative Changes $ 239,013.17 6.22% Change from Current Amount
Completion Date,Description of the Task(s)Change,and Rationale for the Change
Notice to Proceed 8/17/20 Original 7/13/21 Last Approved 11/08/23 Revised Date TBD
Date - Completion Date Date (Includes this change)
#of Days Added 14 Select Tasks 0 Add new task(s) ❑ Delete task(s) 0 Change task(s) in Other
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 Contract is currently under a stop work notice with 4 days remaining to substantial completion,and 34 days to final completion.
1. This change order is to utilize the remaining project allowance funds in the amount of$43,584,67 and increase the contract in the
amount of$239,013.17, to pay for Work Directives 5, 12, 18—23 due to unforeseen conditions and other identified changes In
the work.
• WD No. 5:$40,103.00;Replace Reactors 2 and 3 effluent piping and modify effluent piping for Reactor 4.
• WD No. 12:$ 143,928.87; Provide concrete fill,extend concrete pedestals, and add pipe supports in the interior of Reactor
Tank 4.
The final amounts for Work Directive 5 and 12 were agreed upon during the good faith negotiation meetings between the
contractor and county.
• WD No. 18:$5,918.75;Change the lime slurry piping from PVC to flexible hose,
• WD No. 19:$1,282,36;Install a gate valve on the potable water line for Reactor 4.
• WD No. 20:$2,507.50;Perform video inspection of existing 16-inch Reactor 4 influent piping.
• WD No. 21: $3.001.61; Lease of trailer approved under change orders 3 and 8.This work directive covers additional costs
associated with return of the trailer after 3 years of use,
• WD No.22:$19,268.32;Perform hydraulic testing on the existing influent piping to Reactor#4.
• WO No. 23: $66,587.43; Initial work included subsurface exploration to determine location of existing influent piping and
potential conflicts.This information is required to confirm the proposed alignment of the replacement influent piping to Reactor
#4.(The piping Is to be replaced In a separate project.)
The final amounts for Work Directives 18-23 were provided with Time and Material backup provided by the contractor(attached).
2. Why this change was not included in the original contract:
• WD No. 5: As a result of inconsistencies between record drawings, uncovered field conditions, age of existing piping,
identified scaling, and identified hydraulic challenges of the existing effluent piping for Reactor#2 and#3, these pipes also
required replacement. For continuity,the size of Reactor 4 effluent piping was changed to above ground piping—consistent
with the pipe re-configuration for Reactor 2&3.
• WO No. 12: The project required additional concrete fill,extended concrete pedestals, and additional pipe supports in the
fillet of Reactor 4 to match the dimensions identified by the Lime Softening Reactor Manufacturer's design of internal
components.
• WD No. 18:To enhance maintenance and operationalyflexibility,the lime slurry piping was changed to flexible hose,
• WO No. 19:To isolate the water line for Reactor 4 without interrupting other services for maintenance activities,a gate valve
was added on the potable water line near Reactor 4.
• WD No. 20: Reactor 4 influent piping experienced increased headloss beyond what was anticipated. Video testing was
needed to review the condition of the existing Influent pipe.
• WD No. 21:Additional costs required to remove trailer.
• WD No 22: Reactor 4 influent piping experienced increased headloss beyond what was anticipated. Additional hydraulic
testing was required to evaluate the condition of the existing Influent pipe.
• WD No.23: It was unknown prior to the reactor start-up that the existing condition of the influent pipe would be hydraulically
limited. Additional subsurface information was required to locate the full extent of the existing lines, identify conflicts, and
confirm an alignment for future pipe replacement.
16C6
Contract 20-7769
Mitchell&Stark Construction
Change Order#9
3, Impact if this change is not processed:
• WD No. 5: Reactor 4&Existing Reactors 2 and 3 would operate at lower flows,than if the hydraulic limitations were
remedied,ultimately reducing treating capacity.
• WD No, 12:The internal equipment supplied by the Lime Softening Reactor Manufacturer would not be dimensionally
compatible with the structure,unless re-designed which would have resulted in significant delays,and the treatment
process would be affected.
• WO No. 18:PVC piping would be more difficult to replace over time as lime slurry calcifies inside the piping.
• WD No. 19; Other reactor flushing assemblies would be impacted to isolate the flow in the potable water line as the
system is hydraulically connected.
• WD No. 20:If the video inspection work was not completed,additional costs would be Incurred to address unforeseen
conditions with the existing influent pipe.
• WD No. 21:This change is necessary to finalize payments for the returr of the trailer.
• WD No. 22:If the hydraulic testing work was not completed,additional costs would be Incurred to address unforeseen
conditions with the existing influent pipe.
• WD No. 23; If the subsurface exploration work was not completed,additional costs may be incurred to address the
unforeseen conditions with the existing influent pipe.It was determined after performance of the subsurface
exploration that replacement of this existing pipe would be a separate project.
abbott a
Prepared by: — "u - Date:
Alicia Abbott,E.I., PMP., EPMD Project Manager KLA 10/20/23
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/work order indicated above,as fully as If the same were stated in this acceptance.The
adjustment,if any,to the Contract shall constitute a full and final settlement of any and all claims of the Contractor/Vendor/Consultant/
Design Professional arising out of or related to the change set forth herein, including claims for impact and delay costs.
Accepted by: Date: /047, /g.f
J hue Peterson, Mitchell&Stark Construction Company
Digitally signed tatidstorl er• ' bold
Contact I tarpo En., •
Dale:202 .23 16:12.i;r '6
Accepted by: Date:
Chris Reinbold, P.E., Carollo Engineers
.mn OU.Gx•A OU•eau U«r
BullertBenjamin
nr .o
Approved by: "" 1eT"t°"� Date:
Benjamin N. Bulled,P,E., EMPD Principal Project Manager �_..
Natty signed by MdeanManbe r
DN:E.Matthew.Mcleen@eealerco,nvLgov,
McLean MatthewAcoMols.iC PUDPlanningeProtectManagement,
U=PUD,OU=Divisions,Deabebcc,DC=wlliergav,DC=net,
Approved by: Dale:2023.10.24oes2.20-04'00 Date:
Matt McLean,P,E,, EMPD Director
b rog d o n h Digitally signed by brogdon_h
Date:2023.10.24 11:10:42-04100'
Approved by. — Date:
Howard Brogdon,Water Director
B e l l o n eJ o s e p h Digitally signed by BelloneJoseph
Date:2023.10.24 12:30:33 -04 00
Approved by: Date:
Joe BeI.one,Financial Operations Support Director
Digitally signed by
YilmazHeather
Approved by Date:2023.10.27 17:46:44 04'00' Dote:
Procurement Strategist, Procurement Services Division
Revised:01/14/2021 (Divisions who may require additional signatures may include on separate sheet.) PROCUREMENT USE ONLY
Admin Rpf BCC ES
1
1 6 C 6
ATTEST: BOARD OF COUNTY COMMISSIONERS
, - -
Crystal 1,0<iir . , 4,45.,of Courts COLLIER COUNTY, FLORIDA
i
& ComPtr• ""
1,1
By:
Rick LoCastro, Chairman
, — , •
,-- ,,,, , • •
,--,, •i 4 ."91)9,2%
Dated: a-,1. ..1, k••.4".1'14.:.,"
Att6e.as to Chairman's
' — signature only 1
App ved as o form and I lity:
By:
sco . Teach
Deputy County Attorney
044
(
i CA 0
,
1
16C6
Contract 20-7769
Mitchell&Stark Construction
Change Order#9
Change Order/Amendment Summary
COST TIME
CO# AMD# Description Days New Justification
Additive(+) Deductive(-) Added Amount
to
due to Addeddays
1 Due to availability of pipe materials,
material n/a n/a 66 396 66 days were added to the contract.
deliveries
Use of Allowance
funds in the
2 amount of n/a n/a Use of allowance funds to pay for
$39,197.39 with Work Directives No.2,3,and 8.
$210,802.60
RemalnI ,
Use of Allowance
funds in the Transfer of monthly rental charges
3 amount of n/a n/a
$20,465.58 with from other project with cost savings
in lieu of providing new trailer.
$190,337.03
Use of Allowance
funds in the Additional time for further delays for
4 amount of nla n/a 78 474 material delivery,and use of
$85,340.13,with allowance funds for work directives
$104,996,90 5,6,9,and 10.
remaining.
Additional time of
32 days and use of
allowance funds in Additional time for further delays
5 the amount of n/a n/a 32 506 and use of allowance funds for
$44,635.10,with work directives 13,14,15.
$60,361.80
remaining. _
Additional time of
93 days and use of
allowance funds in Additional time for further delays
6 the amount of n/a n/a 93 599 and use of allowance funds for
$8,891.33,with work directives
$51,470.47
remaining
7 Additional time of n/a n/a 108 707 Additional time due to further
108 days. delays.
Additional time of
139 days and use
• of allowance funds Additional time due to further
8 in the amount of n/a n/a 139 846 delays,and use of allowance funds
$7,885.80,with for change order#3.
$43,584.67
remaining.
Use of remaining
allowance funds in Use of remaining allowance funds
the amount of and increase the contract amount
$43,584.67,plus $239,013,17 n/a 14 860 for Work Directives 5, 12, 18-23.
an increase of Add 14 days to substantial/final
$239,013.17 to the completion dates for Work Directive
contract total.Add No.23.
14 days for WD#23
Revised:01/14/2021 (Divisions who may require additional signatures may include on separate sheet.) PROCUREMENT USE ONLY
Admin BCC 1. 0 ES�
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