#19-7621 (Tetra Tech Inc. First Amendment) ORIGINAL DOCUMENTS CHECKLIST & ROUTING SLIP
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Route to Addressee(s) (List in routing order) Office Initials Date
1. Risk Risk Management
2. County Attorney Office County Attorney Office ' f
4. BCC Office Board of County
Commissioners Cif by AO/
4. Minutes and Records Clerk of Court's Office 1` 1
90"
it 6p-f
5. Procurement Services Procurement Services
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 Osmanis Nieves Borjas -Procurement Contact Information 239-252-2220
Contact/Depat lruent
Agenda Date Item was November 12, 2024 Agenda Item Number AGENDA# 16.C.3
Approved by the BCC
Type of Document Agreement Number of Original 1
Attached Documents Attached
PO number or account N/A [19-76211 Tetra Tech, INC
number if document is Tetra Tech, INC
to be recorded
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FIRST AMENDMENT TO CONTRACT NO. 19-7621 FOR
GOLDEN GATE WASTEWATER ENGINEER OF RECORD AND
INFRASTRUCTURE IMPROVEMENTS
THIS FIRST AMENDMENT ("Amendment") is entered into and effective on this 12..
day of n a vembe( , 2024, by and between Tetra Tech, Inc., who is authorized to do
business in the State of Florida and whose business address is 10600 Chevrolet Way, Suite 300,
Estero Florida 33928 ("Tetra Tech"), and the Board of County Commissioners of Collier
County, Florida(hereinafter called "County"), collectively referred to as the "Parties."
RECITALS:
WHEREAS, the Parties entered into Professional Services Agreement Contract No. 19-
7621 for"Golden Gate Wastewater FOR and Infrastructure Improvements"on April 28, 2020 (the
"Agreement"); and
WHEREAS, the Agreement provided for nine (9) Tasks grouped into four (4) Phases, as
depicted in Schedule B of the Agreement; and
WHEREAS, on April 28, 2020, the Board authorized County Staff to open a Purchase
Order to begin Phases 1, 2, and 4; and
WHEREAS, during the course of the initial master planning efforts, the need for certain
design elements for the infrastructure improvements shifted, in part due to the discovery of
conditions that allowed for alternative solutions; and
WHEREAS, a separate more comprehensive master planning study is currently being
conducted by Jacobs Engineering, the results of which will better enable the County to cohesively
address certain tasks contemplated under the Agreement; and
WHEREAS, Paragraph 2.1 of the Agreement allows the Parties to add certain Additional
Services provided that the scope, compensation, and schedule of the Additional Services is set
forth in writing in the authorizing amendment; and
WHEREAS, there is a need to include additional engineering services and reallocate
funding amongst the Agreement's Tasks,and extend the timeline for completion is set forth herein.
NOW,THEREFORE, in consideration of the mutual promises and other good and valuable
consideration exchanged between the Parties, it is agreed as follows:
1. The above recitals are true and correct and are incorporated herein by reference.
1
First Amendment to Contract 19-7621
Words Struck Through are deleted; Words Underlined are added C40
2. The Additional Services described in the proposal provided by Tetra Tech,attached
hereto as Exhibit A and incorporated herein by reference,shall he included in Task 4-"Wastewater
Treatment Plant Expansion"of the Agreement.
3. Funding in the amount of$730,750 shall be reallocated from Task 6A to Task 4 as
depicted in Schedule B-1, attached hereto and incorporated herein by reference. Staff is hereby
authorized to proceed with the remaining portion of Task 4 in the not-to-exceed amount of
$2,873,750.
4. Three Hundred and Sixty-Five (365) days shall be added to the Project Milestone
Schedule for Task 4, for a revised cumulative total of Two Thousand One Hundred and Ninety
(2,190) calendar days for completion, as depicted in Schedule C-1, attached hereto and
incorporated herein by reference.
5. Except as further modified by this Amendment, the Agreement shall remain in full
force and effect. If there is a conflict between the terms of this Amendment and the Agreement,
the terms of this Amendment shall prevail.
IN WITNESS WHEREOF, the executed have this First Amendment by authorized
agent(s), as of the date first above written.
ATTEST: BOARD OF COUNTY COMMISSIONERS
Crystal K. Kinzel, Comptroller and COLLIER COUNTY, FLORIDA
Clerk of Courts
13
�"' l�r By:
• Attes#as to Ct1Dernia tys Clerk Chris all, Chairman
- 'signature only
'Approved as to Form and Legality:
By:
C Jeanne Sanseverino
Assistant County Attorney
/FPCRy 'Y0 TETRA TECH�
FFR
4 * BY:
1988 La ence E. Jenkins, Vice President
�t�llWae'F
First Amendment to Contract 19-7621
Words Struek Through are deleted; Words Underlined are added (C—A01
Exhibit A
COLLIER COUNTY, FLORIDA
GOLDEN GATE WASTEWATER EOR
Design Updates and Deep Injection Well — Design Updates and DIW(Design and Bidding)
A. PROJECT BACKGROUND
Tetra Tech is currently performing engineering services for Collier County Public Utilities under
Contract #19-7621, Collier County Project # 70243.1 known as the Golden Gate Wastewater
EOR and Infrastructure Improvements.
As part of this project, the County has requested Tetra Tech to provide additional engineering
services as part of the design for the expansion of the Golden Gate Wastewater Treatment Plant.
These additional design services include the addition of a new 8 million gallon per day (MGD)
deep injection well (DIW), updates to the plans to convert the plant to utilize the DIW as the
primary form of disposal (instead of IQ water as originally designed), and updates to the structures
and components to comply with the current version of the Florida Building Code (FBC), National
Electrical Code (NEC), and National Fire Protection Association Codes (NFPA). Tetra Tech will
• utilize subconsultant Water Science Associates to assist with the work associated with the DIW
described herein. Additionally, the County has requested an expanded scope of services related
to the construction administration of the treatment pant expansion.
B. SCOPE OF SERVICES
Provided below is Tetra Tech's proposed scope of services. These services will be added to the
existing Task 04 of Tetra Tech's current contract:
Deep Injection Well:
The County currently utilizes one deep injection well (DIW), identified as IW-1, and one dual-zone
monitor well identified as DZMW-1; and plans to add an additional DIW. Utilizing subconsultant
WSA, Tetra Tech will perform the following services:
Data Compilation and Review
Water Science will review available technical documents related to the facility and underlying
hydrogeology. The documents will include existing and previously issued permits and relevant
supporting documents, regional hydrogeologic studies,facility design documents, and related site-
specific well completion reports.Water Science will search public databases of regulatory agencies
and coordinate with the project team to compile available documents related to the project. Maps,
drawings, and summary tables will be generated under this task for later use in the system
evaluation and expansion design elements of the project.
TW/Golden Gate GG/Scope TETIIATECk
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Injection Well System Design
Preliminary Injection Well Design (30% Design) -
Water Science will develop a conceptual injection well system design for the projected disposal
capacity. The conceptual design will include well depths and dimensions, materials, design
injection rate, preferred well location,conceptual drawings of Class I deep injection well for disposal
of municipal effluent, and a summary report describing recommendations. The injection well will
be cased into the Boulder Zone within the Oldsmar Formation which corresponds to the injection
zone of existing onsite DIW. We will work with the project team to evaluate various injection well
siting and sizing options. We will want to locate the new injection well within 150 feet from the
existing dual zone monitor well as per Florida Department of Environmental Protection (FDEP)
guidelines and at least 500 feet from any existing or proposed production wells.While the final well
site dimensions are typically not large, during construction, the injection well contractor typically
will request a construction laydown area of about 100 feet by 300 feet adjacent to and accessible
to the well site. We will review the space available at the existing facility and identify site
construction coordination and sequencing that will facilitate the injection well system construction.
90% Design —Injection Well—
Water Science will coordinate with Tetra Tech and Collier County (project team)to identify design
preferences and integration with the existing infrastructure. Based on feedback from the project
team, Water Science will make necessary revisions to the conceptual design report and prepare a
90%final design drawings and technical specifications for construction of the injection well. Design
elements to be provided by Water Science include well locations, well dimensions, construction
materials, construction sequencing, construction methods, well completion design, and
recommended injection rates. All mechanical, electrical, structural, and instrumentation design will
be provided by the prime engineering design team.
100% Design — Injection Well —
Based on feedback from the team,Water Science will make necessary revisions to the 90%design
drawings and technical specifications and prepare a 100%final design drawings and specifications
for construction of the injection well. Design elements to be provided by Water Science as part of
this task will include revisions to any previously submitted drawings and plans.
FDEP UIC Permitting
After consultation with the project team and finalizing the injection well system design and siting,
Water Science will prepare and submit to the FDEP a comprehensive application package that will
include support documents including a detailed well inventory of all producing wells, injection wells,
dry holes, surface water bodies, quarries, water wells within the area of influence of the proposed
well, a tabulation of all wells that penetrate the proposed injection or monitoring zones, regional
geologic cross sections detailing the hydrology and hydrologic structures of the local area,
determination of the base of the Underground Sources of Drinking Water, pertinent engineering
drawings, proposed injection, monitoring, and operation procedure, proposed testing program
TW/Golden Gate GG/Scope TETRA TECH
Tt#BP Collier County -2-
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during the construction process, etc. Water Science will proactively work with the FDEP staff to
minimize processing times and facilitate smooth transition into the construction phase of the
project.
Bid Phase Services
Water Science will work with the project team to facilitate the bidding process, attend meetings
with prospective contractors, answer questions on the Technical Specifications, evaluate
contractor bids and provide recommendations on award. The project will be bid as two separate
design and bid packages One for WWTP and separate bid package for the injection well. Both bid
packages will be coordinated with the other.
Design Updates:
In order to utilize the deep injection well as the primary form of disposal, updates to the current
design will be required, including:
• Removal of the proposed high service pump station*
• Removal of the irrigation storage tanks*
• Addition of a new injection well pump station
• Updates to the yard piping plan
• Updates to the site plan
*Note: these items will be shown as a "future improvement" on the drawings
The goal of these updates is to include a single new pump station that could be utilized as both
an injection well pump station (to send flow down either the existing or proposed DIW) and a
transfer pump station capable of transferring flows to the proposed reject storage tanks if needed.
These modifications will necessitate comprehensive updates to the yard piping plan to
accommodate the new flow configurations and ensure integration with the overall system.
The proposed combination transfer pump station / deep injection well pump station will likely
contain two sets of pumps as the head condition for sending flow down the injection well will be
substantially higher than the head conditions needed to transfer effluent to the storage tanks. The
expanded DIW/transfer pump station will include two wet wells with pumps split between them to
eliminate single points of failure and improve reliability. As such, the proposed structure will likely.
be larger than the effluent transfer pump station that is currently designed. It is anticipated a total
of eight(8) pumps will be needed for this station: four(4) injection well pumps and four(4)transfer
pumps in a 3+1 configuration.
The current design which proposes two (2) irrigation water storage tanks will need to be revised
to eliminate the tanks and solely utilize the two (2) reject water storage tanks.
Additionally, the site plan will be revised to reflect these changes, including adjustments to the
layout and infrastructure to support the new injection well pump station and associated piping.
Tetra Tech will conduct a thorough review of the existing design documents, identify all necessary
updates, and develop revised plans that meet regulatory standards and operational requirements.
TW/Golden Gate GG/Scope TETRATECH
Tt#BP Collier County -3-
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The final deliverables (75% and 100%) will include updated design plans and technical
specifications. Regular communication with the client will be maintained to ensure the updates
align with their needs and expectations.
In order to complete the design updates described above, modifications will be required to a total
of seventy-one (71) drawing sheets. The following drawing sheets will need to be revised:
GENERAL:
G-005: PROCESS FLOW DIAGRAM
G-006: HYDRAULIC PROFILE
PROCESS:
D-101: OVERALL SITE PLAN
D-106 THROUGH D-120: YARD PIPING PLANS
D-601 THROUGH D-602: PIPE FITTING TABLES
D-130-101: EFFLUENT TRANSFER PUMP STATION UPPER PLAN
D-130-102: TRANSFER-REJECT METER AND CONTROL VALVE PLAN SECTION & 3D VIEW
D-130-301: EFFLUENT TRANSFER PUMP STATION SECTIONS
D-130-302: EFFLUENT TRANSFER PUMP STATION SECTIONS
D150-101: RECLAIMED WATER HIGH SERVICE PUMP STATION PLAN AND 3D VIEW
D150-102: 2.5 MG RECLAIMED WATER GROUND STORAGE TANK NO.1 LOWER PLAN
D150-103: 2.5 MG RECLAIMED WATER GROUND STORAGE TANK NO.1 UPPER PLAN
D150-104: 2.5 MG RECLAIMED WATER GROUND STORAGE TANK NO.2 LOWER PLAN
D150-105: 2.5 MG RECLAIMED WATER GROUND STORAGE TANK NO.2 UPPER PLAN
D150-301: RECLAIMED WATER HIGH SERVICE PUMP STATION SECTIONS
D150-302: 2.5 MG RECLAIMED WATER GROUND STORAGE TANK NOS. 1 &2 SECTIONS
D150-501: RECLAIMED WATER GROUND STORAGE TANK DETAILS
D150-502: RECLAIMED WATER GROUND STORAGE TANK DETAILS
STRUCTURAL
S130-101: EFFLUENT FLOW METER PLAN AND SECTIONS
S130-102: EFFLUENT TRANSFER PUMP STATION FOUNDATION PLAN
S130-103: EFFLUENT TRANSFER PUMP STATION TOP SLAB PLAN
S130-301: EFFLUENT TRANSFER PUMP STATION SECTIONS
S130-302: EFFLUENT TRANSFER PUMP STATION SECTIONS
S150-101: RECLAIMED WATER HIGH SERVICE PUMP STATION STRUCTURAL PLAN
S150-301: RECLAIMED WATER HIGH SERVICE PUMP STATION SECTIONS & DETAILS
ELECTRICAL:
E-101: ELECTRICAL SITE PLAN
E-102: DUCT BANK DETAILS
E-103: DUCT BANK DETAILS
E-104: HAZARDOUS CLASSIFICATION ELECTRICAL PLANS
TW/Golden Gate GG/Scope � *}. TETRATECH
Tt#BP Collier County -4- ��
ICAO
E130-101: EFFLUENT TRANSFER PS ELECTRICAL PLAN
E130-102: EFFLUENT TRANSFER PS GROUNDING PLAN
E150-102: GROUND STORAGE TANK 1 ELECTRICAL PLAN
E150-103: GROUND STORAGE TANK 2 ELECTRICAL PLAN
E-601: SINGLE LINE DIAGRAM
E-602: SINGLE LINE DIAGRAM
E-603: SINGLE LINE DIAGRAM
E-604: SINGLE LINE DIAGRAM
E-605: SINGLE LINE DIAGRAM
E-606: ELECTRICAL LOAD CALC
E-609: CONDUIT SCHEDULE
E-610: CONDUIT SCHEDULE
E-611: CONDUIT SCHEDULE
E-612: CONDUIT SCHEDULE
E-613: CONDUIT SCHEDULE
E-614: ELECTRICAL WIRING DIAGRAMS
E-615: ELECTRICAL WIRING DIAGRAMS
E-616: ELECTRICAL WIRING DIAGRAMS
E-617: ELECTRICAL WIRING DIAGRAMS
INSTRUMENTATION
1-105: PLC SCHEDULE
1-106: PLANT NETWORK ARCHITECTURE
I-107: PLANT NETWORK ARCHITECTURE
1-108: PLANT NETWORK ARCHITECTURE
1130-101: TRANSFER REJECT PUMP STATION P&ID
1140-101: REJECT WATER SYSTEM P&ID
1150-101: RECLAIM WATER SYSTEM P&ID
In addition to these design updates, Tetra Tech will need to review the existing design that was
completed in May of 2022 for code compliance with the current FBC, NEC, and NFPA
requirements. This involves the comprehensive update of the existing wastewater treatment plant
design to ensure compliance with the 2023 Florida Building Code, superseding the previous 2020
standards. This update will entail a thorough review and revision of all architectural, structural,
mechanical, electrical, and plumbing components of the design. The goal is to integrate the latest
code requirements, enhance operational efficiency, and ensure the safety and reliability of the
facility. The engineering team will conduct an in-depth analysis of the current design documents,
identify all areas that require updates, and develop revised plans that adhere to the 2023 Florida
Building Code.
The project will additionally include a review of the design's compliance with the current National
Electrical Code and National Fire Protection Association standards. The review will encompass
all electrical systems, including power distribution, lighting, control systems, and emergency
backup systems, ensuring they meet the latest NEC requirements. Fire safety systems, including
fire alarms,suppression systems, and emergency evacuation plans will be evaluated and updated
TW/Golden Gate GG/Scope Tr TR"'Fc"
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Tt#BP Collier County -5-
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in accordance with the NFPA standards. The engineering team will provide documentation of the
necessary changes and ensure all updates are integrated into the overall design.
The deliverables for the code compliance updates and design revisions will include updated
design documents and specifications incorporating all necessary changes to the existing designs.
These will be submitted in two deliverable stages: 75% and 100% design. A design review
meeting will be conducted at each design review phase to present the design changes to the
County for review and comment.
Tetra Tech will work closely with the client to ensure all updates meet their operational needs and
comply with regulatory requirements. Monthly progress meetings will be conducted to keep the
County informed and address any concerns promptly. A total of 6 progress meetings are included
within this scope of services.
C. PROJECT SCHEDULE
Tetra Tech will perform the design services described above in accordance with the schedule
below:
Task Days Per Task Total
Cumulative
Days
Design Updates and Code Compliance Review 120 120
Deep Injection Well Design 120 120*
Depp Injection Well Permitting and Bidding 120 240
* Note: Deep Injection Well Design and Design Updates will be performed concurrently
D. COMPENSATION
The proposed fee breakdown is summarized below. The basis of payment for all tasks is time
and materials and billed on a monthly basis.
Changes Under Change Order#2
Task Description Original Add Revised Work
Work Order Amount Order Amount
Amount
4 WWTP Expansion to 3.0 MGD $2,143,000 $730,750 $2,873,750
TW/Golden Gate GG/Scope TETRA TECH
Tt#BP Collier County -6- 1 '�f
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Water
Science SUBCONSULTANT PROPOSAL
Associates
An Apex Company—
July 15, 2024
Mr. Daniel Nelson P.E.
Vice President
Tetra Tech
10600 Chevrolet Way, Suite 300
Estero, Florida 33928
RE: Hydrogeological Services for a New Deep Injection Well System
Collier County Water and Sewer Department—Golden Gate WRF
Dear Mr. Nelson:
Water Science Associates is pleased to submit this proposal to provide hydrogeological services to Tetra Tech
pertaining to Collier County's Golden Gate Water Reclamation Facility (GGWRF) wastewater disposal needs. The
County currently utilizes one deep injection well(DIW), identified as IW-1,and one dual-zone monitor well identified as
DZMW-1; and plans to add an additional DIW.Water Science proposes the following tasks:
TASK 1: DATA COMPILATION AND REVIEW
Water Science will review available technical documents related to the facility and underlying hydrogeology. The
documents will include existing and previously issued permits and relevant supporting documents, regional
hydrogeologic studies,facility design documents,and related site-specific well completion reports. Water Science will
search public databases of regulatory agencies and coordinate with the project team to compile available documents
related to the project. Maps,drawings,and summary tables will be generated under this task for later use in the system
evaluation and expansion design elements of the project.
Task 1 Professional Fees: $10,000
TASK 2: INJECTION WELL SYSTEM DESIGN
TASK 2.1 -Preliminary Injection Well Design (30% Design)
Water Science will develop a conceptual injection well system design for the projected disposal capacity. The
conceptual design will include well depths and dimensions, materials, design injection rate, preferred well location,
conceptual drawings of Class I deep injection well for disposal of municipal effluent, and a summary report describing
recommendations. The injection well will be cased into the Boulder Zone within the Oldsmar Formation which
corresponds to the injection zone of existing onsite DIW. We will work with the project team to evaluate various injection
well siting and sizing options. We will want to locate the new injection well within 150 feet from the existing dual zone
monitor well as per Florida Department of Environmental Protection (FDEP) guidelines and at least 500 feet from any
existing or proposed production wells. While the final well site dimensions are typically not large, during construction,
the injection well contractor typically will request a construction laydown area of about 100 feet by 300 feet adjacent to
and accessible to the well site. We will review the space available at the existing facility and identify site construction
coordination and sequencing that will facilitate the injection well system construction.
Task 2.1 Professional Fees:$30,000
13620 Metropolis Avenue,Suite 110,Fort Myers,Florida 33912 0 239.204.5302 • F 866.398.2426
CAO
Mr.Daniel Nelson P.E. Water
Tetra Tech
July 15,2024 Science
Page 2 Associates
—An Apex Company
TASK 2.2-90% Design—Injection Well
Water Science will coordinate with Tetra Tech and Collier County (project team) to identify design preferences and
integration with the existing infrastructure. Based on feedback from the project team, Water Science will make
necessary revisions to the conceptual design report and prepare a 90% final design drawings and technical
specifications for construction of the injection well. Design elements to be provided by Water Science include well
locations, well dimensions, construction materials, construction sequencing, construction methods, well completion
design, and recommended injection rates. All mechanical, electrical, structural, and instrumentation design will be
provided by the prime engineering design team.
Task 2.2 Professional Fees:$45,000
TASK 2.3-100% Design—Injection Well
Based on feedback from the team, Water Science will make necessary revisions to the 90% design drawings and
technical specifications and prepare a 100%final design drawings and specifications for construction of the injection
well. Design elements to be provided by Water Science as part of this task will include revisions to any previously
submitted drawings and plans.
Task 2.3 Professional Fees:$15,000
TASK 3: FDEP UIC PERMITTING
After consultation with the project team and finalizing the injection well system design and siting, Water Science will
prepare and submit to the FDEP a comprehensive application package that will include support documents including
a detailed well inventory of all producing wells, injection wells, dry holes, surface water bodies, quarries, water wells
within the area of influence of the proposed well, a tabulation of all wells that penetrate the proposed injection or
monitoring zones, regional geologic cross sections detailing the hydrology and hydrologic structures of the local area,
determination of the base of the Underground Sources of Drinking Water, pertinent engineering drawings, proposed
injection, monitoring,and operation procedure, proposed testing program during the construction process, etc. Water
Science will proactively work with the FDEP staff to minimize processing times and facilitate smooth transition into the
construction phase of the project.
Task 3 Professional Fees: $50,000
TASK 4: BID PHASE SERVICES
Water Science will work with the project team to facilitate the bidding process, attend meetings with prospective
contractors,answer questions on the Technical Specifications,evaluate contractor bids and provide recommendations
on award.
Task 4 Professional Fees: $7,500
NSTRUCTION PHASE MEETINGS AND PROJECT ADMINISTRATIO
Water Science anticipates participating in up anning and regulatory agency meetings and will
provide general project administration thr ourse of the pro ermitting efforts.
Task 5 Professional Fees: ,
13620 Metropolis Avenue,Suite 110, Fort Myers.Florida 33912 0 239.204.5302 • F 866.398.2426
CA0
Mr.Daniel Nelson P.E. Waier;t
Tetra Tech
July 15,2024 Science
Page 3 Associates
--An Apex Company--
We appreciate the opportunity to provide a proposal for hydrogeologic services on your behalf. Should you have any
questions or would like additional information, please do not hesitate to contact Kirk Martin via phone or email.
Sincerely,
li/Kir Martin P.G. Andrew McThenia, P.G
Principal Scientist Senior Hydrogeologist
Water Science, Inc. Water Science, Inc.
Mobile:239.218.1043 Mobile:239.246.1972
Office:239.204.5301 Office: 239.529.4396
kirk@wsaconsult.com andy@wsaconsult.com
13620 Metropolis Avenue, Suite 110, Fort Myers,Florida 33912 0 239.204.5302 • F 866.398.2426
Cq0
EXHIBIT B
SCHEDULE B-1
REVISED BASIS OF COMPENSATION
Tasks/Item Description Lump Sum Time and
Materials
Not-To-
Exceed
1 High Level Disinfection Improvements $ $420,000
2 Comprehensive Golden Gate Wastewater Master Plan $ $473,000
3 New Master Pump Station $ $486,000
4 WWTP Expansion to 3.0 MGD $ $2,143,000 $2,873,750
5 Pump Station Improvements $ $
5A Community Pump Station Improvements($175,000 per station)-1 $ $175,000
5B Duplex Pump Station Improvements($129,000 per station)-5 $ $645,000
6 Force Main Improvements $ $
6A 1-Mile Segments($232,000 per segment)—6(2) $ $ ;AAA $429,250
6B 1.5-Mile City Gate Segment $ $270,000
7 Gravity Collection Improvements($181,000 per segment)-5 $ $905,000
8 General Professional Engineering Services $ $300,000
9 Bridge the Gap Treatment Expansion $ $645,000
$ $
$ $
$ $
$ $
$ $
$ $
Total Time and Materials Fee $ $ 7,622,000
First Amendment to Contract 19-7621
Exhibit B
Page 1 of 1
S
EXHIBIT C
SCHEDULE C-1
REVISED PROJECT MILESTONE SCHEDULE
Cumulative Number
of Calendar Days
Task/Item For Completion
Description from Date of
Notice to Proceed for
Services under this
Agreement
1 High Level Disinfection Improvements 730
2 Comprehensive Wastewater Master Plan 365
3 New Master Pump Station 1,825
4 WWTP Expansion to 3.0 MGD 1,825 (2,190)
5 Pump Station Improvements 1,825
6 Force Main Improvements 1,825
7 Gravity Collection System Improvements 1,825
8 General Professional Engineering Services 1,825
9 Bridge the Gap Treatment Expansion 1,095
First Amendment to Contract 19-7621
Exhibit C
Page 1 of 1
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