Funding Information:

Org. Code E.O. Object Code Budget Entity Appropriation

Category Grant # Project # Year Amount

Additional Funding Information attached on separate page.

Rev. 8/26/2020

STATE OF FLORIDA

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Task Assignment This Task Assignment (TA) is entered into between the Parties named below, pursuant to Contract Number: .

1. TA Number: TA Completion Date:

TA Description:

2. Parties State of Florida Department of Environmental Protection (Department)

Department Project Manager: Department Project Manager Phone:

Contractor Name: (Contractor ) ntractor’st ’s Project Manager: ontractor’s t’s Project Manager Phone:

3. Project Number:

(If different from TA Number)

Project Location(s):

Project Name:

4. As consideration for the services rendered by Contractor under the terms of this TA, the Department shall pay the Contractor on the following bases, up to the Total TA Value as indicated below:

Fixed Price:

Fixed Unit Rate: (Extended Price)

Cost Reimbursement:

Total TA Value:

5. The Parties agree to comply with the terms and conditions of the underlying the Contract, and the following attachments which are hereby incorporated by reference:

Attachment 1:

Additional Attachments (if necessary):

IN WITNESS WHEREOF, this TA shall be effective on the last date signed below.

State of Florida Department of Environmental Protection

CONTRACTOR Department Name:

Title: Secretary or Designee

(Authorized Signature) (Authorized Signature) Date:

Additional signatures attached on separate page.

HW680

DC031D Completion January 16, 2026

Arcadis will conduct a bump test of the remedial system. Work will be performed according to the September 22, 2025, Work Plan submitted by Arcadis.

The payment of utility invoices is the only portion of this Task Assignment that is Cost Plus.

Theresa Pepe 850-245-8966 Contractor Arcadis U.S. Inc. Contractor

Contractor Gus Suarez Contractor 813-205-4703

ERIC_5413

1193 SE Port St. Lucie Blvd, Port St. Lucie, St. Lucie County

Rivergate Drycleaners

Contractor Contractor

✔ $ 3,352.38 ✔ $ 450.00

$ 3,802.38

Scope of Work

Arcadis U.S. Inc.

Contractor Gus Suarez

Contract Manager

Douglas J. McGlone Digitally signed by Douglas J. McGlone Date: 2025.10.03 12:02:54 -04'00'

Mubeen Darji

Mubeen Darji, P.E. Digitally signed by Mubeen Darji, P.E.

Date: 2025.09.29 16:01:24 -04'00'

N/A

Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment

WC TAFORM

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

O&M email update/Project Management 12/05/2025

Utility Invoices 12/05/2025

FDEP approval of O&M email update/Project Management $ 3,332.38

FDEP approval of 1 month utility invoices Utilities (Cost Plus Fixed Fee) = not to exceed $450.00 Utilities Handling Fee = $20

$ 470.00

$ 3,802.38

HW680

DC031D

FFLORIDA DEPARTMENT OF

EEnvironmental Protection

Bob Martinez Center

2600 Blair Stone Road Tallahassee, FL 32399-2400

Ron DeSantis Governor

Jay Collins

Lt. Governor

AAlexis A. Lambert Secretary

Memorandum

TO: Negotiation File Rivergate Drycleaners

FACID NO. 56-9501255; ERIC_5413

Port St. Lucie, St. Lucie County FROM: Theresa Pepe, Project Manager SUBJECT: Task Assignment DC031D (HW680) DATE: September 24, 2025

Task Assignment DC031D is for O&M activities as clarified below at Rivergate Drycleaners. Additional information is described in the September 22, 2025, Work Plan from Doug McGlone of Arcadis.

The final task assignment equals $3,802.38. Arcadis may invoice according to the attached schedule.

Specific negotiated subtasks are as follows:

Subtask 1: Project Management This subtask is calculated automatically based on a percentage of total labor. Total hours were cut from 2 on the original proposal to 1 on the final.

Subtask 2: Bump Test A signed access form was obtained from the current property owner in December 2019.

This subtask provides costs for a “bump test” of the remedial system per FDEP guidelines. The goal of the test is to determine if operation of the remedial system can be terminated. Costs are included for collecting vapor samples from two SVE wells and one influent. Total hours were cut from 12 to 10. A spreadsheet calculation error under Total Field Expenses was corrected.

Subtask 3: Reporting Arcadis will submit an email summary update as the final deliverable. The report will also provide recommendations for additional actions at the site. Total hours were cut

Rivergate Drycleaners

ERIC_5413

from 13 to 7; additionally, the DEP PM requested an email summary rather than a full written report.

Subtask 4: Utilities This subtask provides costs for one month of utilities and associated handling fees.

Arcadis will only invoice for actual charges and any remainder will be adjusted at the end of the Task Assignment.

Total hours including Project Management were cut from 25 on the original proposal to 18 on the final task assignment. Total cost was reduced from $7,319.58 on the original proposal to $3,802.38 on the final.

FDEP COST ESTIMATE

Contractor: Arcadis, U.S., Inc.

Date: 9/22/25

Task #: SubTask 1 Project Management Site: Rivergate Dry Cleaners SubTask 2 Bump Test

Activity/Phase: O&M SubTask 3 Reporting - Email update Project Manager: Doug McGlone SubTask 4 Utilities

SubTask 5

Totals 1 2 3 4 5 Labor Rate Category

$73.04 Project Manager McGlone, Douglas (DMc) 1 1.3 $73.45 Principal Engineer Perella, John (JFP) 2 1 1 0 0 $73.04 Principal Scientist McGlone, Douglas (DMc) 0 0 0 0 0 $39.34 Staff Engineer Tran, Thuy-Min (MT) 5 0 5 0 0 $39.34 Staff Scientist Guarino, Andrew (AG) 8 8 0 0 0 $39.67 Drafter/Design Oliva, Brian (BO) 1 0 1 0 0 $39.94 Project Assistant Cruz, Michele (MC) 1 1 0 0 0

Total Hours 18 1 10 7 0 0

Direct Labor $833.86 $95.93 $428.11 $309.82 $0.00 $0.00

Overhead 79.00% $658.75 $75.78 $338.21 $244.76 $0.00 $0.00 Gen & Admin 36.00% $300.19 $34.53 $154.12 $111.54 $0.00 $0.00 Fringe 37.10% $309.36 $35.59 $158.83 $114.94 $0.00 $0.00 Total Labor $2,102.16 $241.83 $1,079.27 $781.06 $0.00 $0.00

Travel Vehicle Rental $120.00 $120.00 $0.00 $0.00 $0.00 Mileage Costs $0.00 $0.00 $0.00 $0.00 $0.00 Air Fare $0.00 $0.00 $0.00 $0.00 $0.00 Per diem + Hotel $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $120.00 $120.00 $0.00 $0.00 $0.00

Subcontractor (Equipment Procurement) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor Subtotal $0.00 $0.00 $0.00 $0.00 $0.00 Procurement Fee $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor (Services Procurement) Drilling (Conventional) $0.00 $0.00 $0.00 $0.00 $0.00 Drilling (Non-conventional) $0.00 $0.00 $0.00 $0.00 $0.00 Mobile Laboratory $0.00 $0.00 $0.00 $0.00 $0.00 Surveying $0.00 $0.00 $0.00 $0.00 $0.00 IDW EnviroServe $0.00 $0.00 $0.00 $0.00 $0.00 Utilities $450.00 $0.00 $0.00 $450.00 $0.00 Annual Telemetry Fee $0.00 $0.00 $0.00 $0.00 $0.00

$0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor Subtotal $450.00 $0.00 $0.00 $450.00 $0.00 Handling Fee $20.00 $0.00 $0.00 $20.00 $0.00 Total Subcontractor Cost $470.00 $0.00 $0.00 $470.00 $0.00

Laboratory Analytical Costs $600.00 $600.00 $0.00 $0.00 $0.00 Fast Turnaround Charges $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping $150.00 $150.00 $0.00 $0.00 $0.00 Total Laboratory $750.00 $750.00 $0.00 $0.00 $0.00

Field Expenses Personal Protection $0.00 $0.00 $0.00 $0.00 $0.00 Expendables $40.00 $40.00 $0.00 $0.00 $0.00 Equipment (Drilling related) $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (IDW related) $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Other) $110.00 $110.00 $0.00 $0.00 $0.00 Total Field Expenses $150.00 $150.00 $0.00 $0.00 $0.00

Subtotal $3,592.16 $241.83 $2,099.27 $781.06 $470.00 $0.00 Completion Fee $210.22 $24.18 $107.93 $78.11 $0.00 $0.00

Total Estimated Cost $3,802.38 $266.01 $2,207.20 $859.17 $470.00 $0.00

REV: 02/03 CEF ARCADIS Page 1

SITE : Rivergate Dry Cleaners SUBTASK 2: Bump Test

DATE: 9/22/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

(Subtask Title) Principal (DMc) Verification of property ownership; field event preparation, utilities 0 Principal Engineer (JFP) Review system performance, report prep/submittal 1 Staff Scientist (AG) Prep for fieldwork (2 hr), mob/demob (2 hrs); vapor sampling (4 hrs) 8

Project Asst (MMc) Field notes processing, field support 1

TOTAL LABOR 10

VEHICLE TYPE RATE UNIT USEAGE

Automobile $80.00 Per Day 0 $0.00 $0.00 Van/Truck $120.00 Per Day 1 $120.00 $120.00

TOTAL VEHICLE $120.00

PER DIEM STAFF RATE UNIT USEAGE

Meals

Total Meal/Hotel: $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

Equipment Procurement

Name Equipment Rate Units Usage Totals EESI AWS $2,000.00 Per Day 0 $0.00

Total Equip.: $0.00 Services Procurement

Name Purpose Rate Units Usage Totals Handling Fee $0.00 Per Month 0 $0.00

Total Services: $0.00

TOTAL $0.00

LABORATORY COSTS

Analytical Costs Parameter Method Media Rate Turn Around Total Samples Totals

VOC TO-15 Vapor $200.00 1.00 3 $600.00 TAT 24-hr=110% (2.1) 3-day=65% (1.65) 1-week=20% (1.20) Total Lab: $600.00

Rate Units Usage Shipping - Large (25 to 50 lbs.) --- --- $150.00 Per Cooler 1 $150.00 Shipping - Small (0 to 25 lbs.) --- --- $110.00 Per cooler 0 $0.00

Total Shipping: $150.00

TOTAL LAB $750.00

EQUIPMENT

Personal Protection Item Rate Unit Usage Totals

Total PPE: $0.00 Expendables Miscellaneous Expendables $40.00 Per Day 1 $40.00

Total Expendables: $40.00 Equipment Items PID (ppbRae) $110.00 Per Day 1 $110.00

Total Equipment Items: $110.00 Equipment Kits

Total Equipment Kits: $0.00

Total Equipment Kits: $150.00

SUBTASK 3: Reporting - Email update

DATE: 9/22/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

(Subtask Title) Principal (DMc) 0 Principal Engineer (JFP) Email update results, system performance, report prep/submittal 1 Staff Scientist (AG) 0 Staff Engineer (MT) Email update, system performance, report prep/submittal 5 Project Asst (MMc) 0 Drafter/Designer(BO) Figure production for report 1

TOTAL LABOR 7

VEHICLE TYPE RATE UNIT USEAGE

Automobile $80.00 Per Day 0 $0.00 $0.00 Van/Truck $120.00 Per Day 0 $0.00 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE

Meals

Total Meal/Hotel: $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

Equipment Procurement

Name Equipment Rate Units Usage Totals $0.00 Per Day 1 $0.00

Total Equip.: $0.00 Services Procurement

Name Purpose Rate Units Usage Totalsy p

Total Services: $0.00

TOTAL $0.00

LABORATORY COSTS

Analytical Costs Parameter Method Media Rate Turn Around Total Samples Totals

TAT 24-hr=110% (2.1) 3-day=65% (1.65) 1-week=20% (1.20) Total Lab: $0.00 Rate Units Usage

Shipping - Large (25 to 50 lbs.) --- --- $150.00 Per Cooler 0 $0.00 Shipping - Small (0 to 25 lbs.) --- --- $110.00 Per cooler 0 $0.00

Total Shipping: $0.00

TOTAL LAB $0.00

EQUIPMENT

Personal Protection Item Rate Unit Usage Totals

Total PPE: $0.00 Expendables Miscellaneous Expendables $40.00 Per Day 0 $0.00

Total Expendables: $0.00 Equipment Items

Total Equipment Items: $0.00 Equipment Kits

SUBTASK 4: Utilities

DATE: 9/22/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

(Subtask Title)

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE

Automobile $80.00 Per Day 0 $0.00 $0.00 Van/Truck $120.00 Per Day 0 $0.00 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE

Total Meal/Hotel: $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

Equipment Procurement

Name Equipment Rate Units Usage Totals $0.00 Per Day 0 $0.00

Total Equip.: $0.00 Services Procurement

Name Purpose Rate Units Usage Totals

NAME OF COMPANY Utilities -Telemetry $450.00 Per Month 1 $450.00 Handling Fee $20.00 Per Month 1 $20.00

Total Services: $470.00

TOTAL $470.00

LABORATORY COSTS

Analytical Costs Parameter Method Media Rate Turn Around Total Samples Totals

TAT 24-hr=110% (2.1) 3-day=65% (1.65) 1-week=20% (1.20) Total Lab: $0.00 Rate Units Usage

Shipping - Large (25 to 50 lbs.) --- --- $150.00 Per Cooler 0 $0.00 Shipping - Small (0 to 25 lbs.) --- --- $110.00 Per cooler 0 $0.00

Total Shipping: $0.00

TOTAL LAB $0.00

EQUIPMENT

Personal Protection Item Rate Unit Usage Totals

Total PPE: $0.00 Expendables Miscellaneous Expendables $40.00 Per Day 0 $0.00

Total Expendables: $0.00 Equipment Items

Total Equipment Items: $0.00 Equipment Kits

TOTAL EQUIPMENT $0.00

Use or disclosure of information contained on this sheet is subject to the restriction and disclaimer located on the signature page of this document. 1/3

Arcadis U.S., Inc.

7000 N. Federal Hwy Boca Raton, FL 33487 United States Phone: 561 697 7000 www.arcadis.com

FL Engineering License #7917 FL Geology License #GB564

Ms. Theresa Pepe, FCCM Contract Manager Hazardous Waste Cleanup Section Florida Department of Environmental Protection Bob Martinez Center, MS 4520 2600 Blair Stone Road Tallahassee, Florida 32399-2400

Date: September 22, 2025 Our Ref: 30271851 Subject: Rivergate Dry Cleaner (ERIC_5413) Proposal for Bump Test and Reporting 1193 SE Port Saint Lucie Blvd, Port St. Lucie, Florida

Dear Ms. Pepe, Arcadis U.S., Inc. (Arcadis) is pleased to submit this proposal/cost estimate for the Rivergate Dry Cleaner Site, located in Port Saint Lucie, Saint Lucie County, Florida. This proposal includes bumping the system and collecting vapor influent and individual SVE well vapor samples. This proposal includes a description of the proposed scope of services, and an estimated cost and schedule for their completion. The CEF is included as Attachment 1.

TASK 1: PROJECT MANAGEMENT

As specified by the FDEP, project management is calculated automatically in the CEF as the first subtask.

TASK 2: SVE SYSTEM BUMPING AND VAPOR SAMPLING

In accordance with FDEP guidance, the remedial system will be turned on and allowed to run for a minimum of one hour. System performance measurements will be recorded while in operation. After approximately one hour of run time, recovered system vapor samples will be collected from the combined influent and individual SVE wells (SVE-1 and SVE-2) for analysis of VOCs by EPA Test Method TO-15.

TASK 3: SVE SYSTEM REBOUND BUMP TEST REPORT

A report summarizing the results of the bump testing and vapor sample analytical results will be prepared. The report will include recommendations for future system operations.

TASK 4: UTILITIES MANAGEMENT

This task will be used to manage and process FPL invoices for one month of system operation included in this proposal. Based upon FPL invoices, it is anticipated that the utility budget be estimated at $450 per month. A

Ms. Theresa Pepe

FDEP

September 22, 2025

Use or disclosure of information contained on this sheet is subject to the restriction and disclaimer located on the signature page of this document. 2/3 monthly handling fee of $20 per month is also included. Actual utility costs will be invoiced, and any differences will be adjusted through Task Assignment Change Orders.

SCHEDULE

Arcadis will begin implementing the rebound/bumping activities in October 2025 upon receipt of a Task Assignment (TA) from the FDEP. The following deliverable and estimate timeframe for completion are included below:

Deliverable Anticipated Submittal Date

System Rebound Bump Test Report December 2025

Ms. Theresa Pepe

FDEP

September 22, 2025

This proposal and its contents shall not be duplicated, used or disclosed — in whole or in part — for any purpose other than to evaluate the proposal. This proposal is not intended to be binding or form the terms of a contract. The scope and price of this proposal will be superseded by the contract. If this proposal is accepted and a contract is awarded to Arcadis as a result of — or in connection with — the submission of this proposal, Arcadis and/or the client shall have the right to make appropriate revisions of its terms, including scope and price, for purposes of the contract. Further, client shall have the right to duplicate, use or disclose the data contained in this proposal only to the extent provided in the resulting contract.

www.arcadis.com 3/3 Rivergate Bump Proposal

Arcadis appreciates the opportunity to assist the FDEP at this site. If you have any questions or wish to discuss this proposal, please do not hesitate to contact us.

Sincerely, Arcadis U.S., Inc.

Doug McGlone, P.G.

Principal Scientist

Email: Douglas.McGlone@arcadis.com Direct Line: 561.697.7040 Mobile: 561.662.7978

CC. Project File

Enclosures:

Attachment 1 – CEF-LOE