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.

HW683

DC037C Completion April 24, 2026

This Task Assignment authorizes Geosyntec to conduct Groundwater Monitoring and PFAS sampling at Gentle Touch Dry Cleaners site in accordance Geosyntec’s scope of work, cost estimate and schedule received on November 4, 2025.

Sarah Aduwa 850-245-8973 Contractor Geosyntec Contractor

Contractor Nick Barnes Contractor 813-557-1165

ERIC 4712

3611 W Hillsborough Avenue (formerly 3613 W Hillsborough Avenue) Tampa, Florida 33614

Gentle Touch Dry Cleaners

Contractor Contractor

✔ $ 12,799.97

$ 12,799.97

Scope of Work

Geosyntec Contractor Todd Kafka

Contract Manager

Todd K. Kafka, PG (FL) Digitally signed by Todd K. Kafka, PG (FL) Date: 2025.11.19 08:33:40 -05'00'

Mubeen Darji

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

Date: 2025.11.18 16:48:23 -05'00'

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

Subtask 2 - Field Deliverable – Groundwater Monitoring 01/26/2026

Subtask 3 - Groundwater Monitoring Report 02/26/2026

Subtasks 1, 4 - PFAS Screening Deliverable and IDW Manifest 03/16/2026

Subtask 2 - Submittal and FDEP approval of Field Deliverable – Groundwater Monitoring $ 5,295.01

Subtask 3 - Submittal and FDEP approval of Groundwater Monitoring Report $ 4,189.17

Subtasks 1, 4 - Submittal and FDEP approval of PFAS Screening Deliverable and IDW Manifest $ 3,315.79

$ 12,799.97

HW683

DC037C

To: HW683 Contract Negotiation File Gentle Touch Dry Cleaners Tampa, Florida

ERIC_4712

From: Sarah Aduwa, Project Manager Date: November 6, 2025 Subject: Negotiation Summary

HW683_DC037C

This Task Assignment authorizes Geosyntec to conduct Groundwater Monitoring and PFAS sampling at Gentle Touch Dry Cleaners site in accordance Geosyntec’s scope of work, cost estimate and schedule received on November 4, 2025.

Nick Barnes is the Project Manager.

Subtask 2 and 3 – Geosyntec will collect a sample from each of the 10 groundwater samples monitoring wells previously installed at the Site. Prior to groundwater sampling, Geosyntec will gauge and record the depth-to-water (DTW) from these 10 monitoring wells within a 24-hour period. The samples will be sent to an analytical laboratory for volatile organic hydrocarbon analysis via EPA Method 8260. Geosyntec will prepare a comprehensive Natural Attenuation Monitoring (NAM) Report that details the findings and outcomes of the recent NAM event. The report will include well-organized tables presenting field and laboratory groundwater data, and figures illustrating groundwater flow directions and VOH results. A concise summary of all field activities conducted will be provided.

Subtask 4 - Subtask 4 includes costs associated with PFAS groundwater screening.

During the Subtask 2 sampling activities, groundwater samples are proposed to be collected from three surficial aquifer monitoring wells including MW001, MW002, and MW004 based on the VOH analytical results and groundwater flow direction generally to the south for PFAS, screening.

The FDEP Project Manager agrees to the scope of work and final cost associated with this Task Assignment. The final cost is $12,799.97 with 69 labor hours.

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LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE : Gentle Touch Dry Cleaners SUBTASK: Groundwater Sample Collection

DATE: 11/4/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Project Professional N. Barnes 4

Senior Staff Professional A. Ogunkoya

TOTAL LABOR 29

VEHICLE TYPE RATE UNIT USEAGE

Truck Ogunkoya $120.00 day 2 $240.00

Subtotal $240.00

TOTAL VEHICLE $240.00

SUBCONTRACTOR COSTS

TOTAL SUB $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

VOHs 10 MWs $73.00 10 0 $730.00

Subtotal $730.00 Shipping

Large Cooler (25 to 50 lbs) $150.00 1 $150.00 Subtotal $150.00

TOTAL LAB $880.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related

Shallow Groundwater Sampling Kit $290.00 Day 2 $580.00

Subtotal $580.00 IDW Related

Drum $100.00 Drum 1 $100.00 Subtotal $100.00

Expendables $40.00 Day 2 $80.00

Subtotal $80.00

TOTAL EQUIPMENT $760.00

RPO/tenant notifications (1 hr). Evaluate field data (0.5 hr/day x 2 days = 1 hr). Waste profile and IDW manifesting (2 hr).

Field preparation (1 hr). Round trip mobilization (2 hr/day x 2 days = 4 hr). Locate and collect depth-to-groundwater measurements from montoring wells (1 hr). Calibration of instruments (0.5 hr/day x 2 days = 1 hr). Sample 10 monitoring wells (1.5 hr/well x 10 wells = 15 hr). IDW and sample management (2 hr). Compile field notes (1 hr)

11/6/2025 Page 3 of 5 Subtask 2

SUBTASK: Groundwater Monitoring Report (VOHs)

DATE: 11/4/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka 1

Senior Professional M. Hensley 5

Project Professional N. Barnes 14

Senior Staff Professional A. Ogunkoya 4

TOTAL LABOR 24

Evaluating and interpreting groundwater data, develop conclusions and recommendations

Prepare figure package for Groundwater Monitoring Report

Prepare Groundwater Monitoring Report and sign/seal Groundwater Monitoring Report

Update data tables, draft groundwater elevation contours, assemble appendices, compile PD

11/6/2025 Page 4 of 5 Subtask 3

SUBTASK: PFAS Screening

DATE: 11/4/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka 1

Senior Professional M. Hensley 2

Project Professional N. Barnes 3

Senior Staff Professional A. Ogunkoya 3

TOTAL LABOR 9

SUBCONTRACTOR COSTS

NAME PURPOSE COST

IDW

Erwin Remediation PFAS Profiling Fee (per site) $350.00 $350.00 Erwin Remediation PFAS-Impacted Waste ($195/drum) $195.00 $195.00

Subtotal $545.00

TOTAL SUB $545.00

Evaluating and interpreting groundwater data, develop conclusions and recommendations

Prepare figure package for PFAS Screening Deliverable

Prepare PFAS Screening Deliverable

Extra sampling time for PFAS SOPs (3 hr)

11/6/2025 Page 5 of 5 Subtask 4

Aduwa, Sarah

From: Goudarzi, Mohammad Sent: Friday, September 26, 2025 12:25 PM To: Aduwa, Sarah Cc: Darji, Mubeen Subject: RE: Presumptive Remedy Form for Gentle Touch Dry Cleaners ERIC 4712

Sarah, I have reviewed the MAGS data and previous documents/emails for Gentle Touch Dry Cleaners (ERIC 4712) and below are my comments:

1. Based on the DTW in MW001 (4.28 ft) and other monitoring wells, and considering the 35 IW vacuum applied, it appears that water entrainment may have occurred in most of the MAGS wells, since they are screened from 1-4 ft bgs. Additionally, the MAGS step test performed was a step-down and not a step-up test (from low to high vacuum). Geosyntec should consider conducting another round of MAGs testing on select wells and specify the vacuum level to be applied. Moving forward please make sure that the MAGS are screened about 1 ft above the water table and the MAGS step testing is a step-up test.

2. It would be bene cial to complete another round of GW sampling, as the last sampling event was conducted in 2023.

Let me know if you have any questions.

Thanks, Mohammad Goudarzi Engineering Specialist IV Division of Waste Management 2600 Blair Stone Road Tallahassee, FL 32399-2400 Office: 850-245-8964 Mohammad.Goudarzi@FloridaDEP.gov

From: Aduwa, Sarah <Sarah.Aduwa@FloridaDEP.gov> Sent: Thursday, September 4, 2025 10:19 AM To: Goudarzi, Mohammad <Mohammad.Goudarzi@FloridaDEP.gov> Cc: Darji, Mubeen <Mubeen.Darji@FloridaDEP.gov> Subject: Presumptive Remedy Form for Gentle Touch Dry Cleaners ERIC 4712

Hello Mohammed, 12802 Tampa Oaks Blvd.

Suite 151

Tampa, Florida 33764 Ph. 813-558-0990 www.geosyntec.com

November 4, 2025

Ms. Sarah Aduwa Florida Department of Environmental Protection Waste Site Cleanup Section 2600 Blair Stone Road, MS 4520 Tallahassee, Florida 32399-2400

Subject: Scope of Work and Level of Effort Annual Groundwater Monitoring and PFAS Screening Gentle Touch Dry Cleaners

3611 W Hillsborough Avenue (formerly 3613 W Hillsborough Avenue) Tampa, Florida 33614 FDEP Site ID No. ERIC_4712

Dear Ms. Aduwa, Geosyntec Consultants, Inc. (Geosyntec) has prepared this Scope of Work (SOW), Cost Estimating Form (CEF), and Level of Effort (LOE) to conduct annual groundwater monitoring concurrent with PFAS screening activities at the Gentle Touch Dry Cleaners facility (herein, the “Site”) located in Tampa, Florida. A description of task breakdown for groundwater sampling activities and report preparation is provided below. A copy of the CEF/LOE is included in Attachment A.

The property ownership information on the Hillsborough County Property Appraiser’s website and the Permission to Enter Property Form have been reviewed, with the current Permission to Enter Property form remaining valid.

Subtask 1 – Project Management

Costs associated with this subtask are directly computed for Nick Barnes, Project Manager.

Subtask 2 – Groundwater Sample Collection (Volatile Organic Halogens)

Geosyntec will collect a sample from each of the 10 groundwater samples monitoring wells previously installed at the Site. Prior to groundwater sampling, Geosyntec will gauge and record the depth-to-water (DTW) from these 10 monitoring wells within a 24-hour period.

Geosyntec assumes that a peristaltic pump will be used to collect groundwater samples from the monitoring wells, based on the previous assessment activities. Field activities will be conducted in accordance with the FDEP Standard Operating Procedures. Groundwater samples will be submitted under chain of custody protocol for laboratory analysis of volatile organic halocarbons (VOHs) by Environmental Protection Agency (EPA) Method 8260.

Purge water generated during the groundwater monitoring activities will be stored in a 55-gallon drum on-Site prior to off-Site disposal.

Subtask 3 – Annual Groundwater Monitoring Report (VOHs)

Geosyntec will prepare a Groundwater Monitoring Report documenting the VOH results of the groundwater monitoring event. The report will contain a summary of the field activities completed, tables summarizing field and laboratory groundwater data, figures showing groundwater flow direction(s) and groundwater analytical results, conclusions, and recommendations. The report will be signed and sealed by a Florida-licensed professional geologist or engineer.

Subtask 4 –PFAS Screening Activities

Subtask 4 includes costs associated with PFAS groundwater screening. During the Subtask 2 sampling activities, groundwater samples are proposed to be collected from three surficial aquifer monitoring wells including MW001, MW002, and MW004 based on the VOH analytical results and groundwater flow direction generally to the south (see attached Figure) for PFAS screening.

Please see the table below for additional details on the proposed wells.

Well ID Diameter (inches)

Screen Interval (ft BLS) Rationale/Location

MW001 1 7-12 Interior MW, likely closest to former drycleaning machine

MW002 1 5-15 North of building, outside rear door of former drycleaner, in VOH groundwater plume

MW004 1 5-15 South of building, in VOH groundwater plume

Groundwater samples will be collected in accordance with draft Standard Operating Procedures (SOPs) for PFAS sampling that were developed by FDEP and the SOPs for PFAS sampling that were prepared by Geosyntec for use at FDEP’s Site Investigation Section firefighting training facilities.

Geosyntec assumes that the PFAS samples will be analyzed by the FDEP Central Laboratory.

Geosyntec understands that the FDEP laboratory will analyze up to three groundwater samples for PFAS, provide 1 liter of PFAS-free water for an equipment blank, and ship the sampling kits to Geosyntec. Geosyntec assumes that the FDEP laboratory will provide return shipping labels with the sampling kits.

Upon receipt and review of the analytical data, Geosyntec will prepare a PFAS Screening Deliverable documenting the results of the groundwater monitoring event. The deliverable will include the information below and will be submitted via electronic mail to you, Breck Dalton, Jennifer Farrell, Mubeen Darij, Safa Shariat, and Doris Brown:

An email summary of the field activities and results;

Groundwater sampling field forms;

A figure illustrating the analytical results for PFOA, PFOS, and the sum of PFOA &

PFOS;

The FDEP analytical laboratory report.

IDW disposal quotes prepared by waste disposal companies are included in Attachment A. Based on the quotes, Geosyntec recommends selecting Erwin Remediation to haul and dispose of IDW generated during the groundwater monitoring activities. For planning purposes, it is expected that the IDW will need to be disposed of as PFAS-containing waste. Bid costs prepared by waste disposal companies are included in Attachment A. Based on the bids, Geosyntec recommends selecting Erwin Remediation to haul and dispose of IDW generated during the groundwater monitoring activities.

For planning purposes, it is expected that the IDW will need to be disposed of as PFAS-containing waste. As indicated above, Geosyntec recommends selecting Erwin Remediation to haul and dispose of IDW generated during the groundwater monitoring activities. The subcontractor costs for IDW disposal are included within Subtask 4.

Deliverable and Invoicing Schedule:

Subtask Deliverable Due Date Invoice Amount

2 Field Deliverable – Groundwater Monitoring

January 26, 2026 $5,295.01

3 Groundwater Monitoring Report February 26, 2026 $4,189.17

1, 4 PFAS Screening Deliverable and IDW Manifest

March 16, 2026 $3,315.79

Total $12,799.97 The above schedule assumes the Task Assignment is received in November 2025.

Geosyntec appreciates the opportunity to provide this proposed SOW/LOE. Please contact us if you have any questions or require additional information.

Sincerely, Nicholas S. Barnes P.E. (FL) Todd K. Kafka, P.G. (FL, TN)

Project Engineer Senior Principal Hydrogeologist

Attachments: Attachment A –Figures Attachment B – IDW Quotes

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ATTACHMENT B

408 Ditmar Street

Pensacola, FL 32503

ErwinRemediation@Gmail.com - P.O. Box 884 Gulf Breeze, FL 32562 (850) 292-6511

To: Mr. Nicholas Barnes Geosyntec Consultants, Inc.

12802 Tampa Oaks Boulevard, Suite 151 Tampa, FL 33637

April 15, 2025

Re: Non-Hazardous Drum Disposal of PFOS/PFAS Impacted Materials

Mr. Barnes:

The price for the transportation and disposal (T&D) of 55-gallon drums of non-hazardous soil, mud, and water is listed below:

Impacted with Non-Hazardous Petroleum or Chlorinated Solvents:

Description Rate Unit T&D - Non-Haz Soil $ 110.00 Per Drum T&D - Non-Haz Mud/Water $ 125.00 Per Drum

Impacted with Non-Hazardous PFAS/PFOS:

Description Rate Unit Profile Fee (Charged once per site) $ 350.00 Per Site T&D - Non-Haz PFOS/PFAS Impacted Soil $ 195.00 Per Drum T&D - Non-Haz PFOS/PFAS Impacted Mud/Water $ 195.00 Per Drum

Dry cleaning sites will require 8260-VOH lab analysis and PFAS sites will require the full FDEP lab analysis for IDW waste characterization.

This quote is valid for 120 days.

Respectfully, Robert Donado Erwin Remediation, Inc.

Email: Robert@ErwinRemediation.com Office: (850) 466-2358

: 2025FC0101

: 1/1/2025

Jeff Maylon/ Office Manager

From: Jeff Maylon To: Olivia Cain; Amanda Kimball Subject: RE: Request for Quote (WRI/Moran) - 2025 IDW Pricing for FDEP Sites Date: Tuesday, January 14, 2025 10:46:24 AM Attachments: image005.png image006.png image007.png image008.png image009.png image010.png

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. If you have any suspicion, please confirm with the sender verbally that this email is authentic. If you suspect fraud, click "Phish Alert Report."

Good morning Olivia, We only accept non-hazardous waste for disposal at our facility. We do offer transportation of PFAS contaminated waste for disposal at the Waste Management Emelle AL facility.

Respectfully, Jeffrey Maylon Office Manager Water Recovery, LLC

Office: 904.475.9320 WRIJax.com

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Please consider the environment before printing this email

From: Olivia Cain <OCain@Geosyntec.com> Sent: Tuesday, January 14, 2025 10:42 AM To: Amanda Kimball <akimball@wrijax.com> Cc: Jeff Maylon <jmaylon@wrijax.com> Subject: RE: Request for Quote (WRI/Moran) - 2025 IDW Pricing for FDEP Sites

Good morning! I wanted to follow up on my question from last week.

Olivia B. Cain, P.E. (FL) Project Engineer Geosyntec Consultants, Inc.

Clearwater, FL Pronouns: she/her