Funding Information:

Org. Code E.O.

Object Code

Budget Entity Appropriation

Category Grant # Project # Year Amount

Additional Funding Information attached on separate page.

Rev. 8/17/2020

STATE OF FLORIDA

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Task Assignment Change Order This Change Order is entered into between the Parties named below and amends the Task Assignment (TA) and any previous TA Change Orders (TACO) as follows:

1. TA Number: TACO Number: Contract Number:

TACO Description:

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

Department’s Project Manager: Department’s 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 Name:

4. There are no changes to the TA compensation.

The compensation of the TA is changed to the amounts indicated below:

Amended Price Price Prior to TACO

Fixed Price:

Fixed Unit Rate: (Extended Price)

Cost Reimbursement:

Total TA Value:

There are no changes to the TA Expiration Date.

The TA Completion Date is changed from ______________ to ______________ (a total of ______ days).

6. There are no changes to the Attachments.

Attachment ___ is replaced with Attachment -____.

7. No Additional Changes.

Additional Changes:

8. All other terms and conditions of the TA remain in effect. If and to the extent that any inconsistencies may appear between the TA and this TACO, the provisions of this TACO shall control.

IN WITNESS WHEREOF, this TACO 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.

DC002E 2 HW683

Sarah Aduwa 850-245-8973 Geosyntec

Tori Hood 225-955-1864

ERIC_5222

Colonial/Touch of Class

$ 27,230.14 $ 58,042.56

$ 1,251.90 $ 5,467.95

$ 28,482.04 $ 63,510.51

04/30/2025 07/18/2025 79

1 1

Geosyntec

Todd Kafka

Contract Manager

Todd Kafka, P.G. Digitally signed by Todd Kafka, P.G.

Date: 2025.04.29 14:29:11 -04'00'

Mubeen Darji

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

Date: 2025.04.28 14:13:19 -04'00'

Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

FLORIDA DEPARTMENT OF

Environmental Protection

Bob Martinez Center 2600 Blair Stone Road

Tallahassee, FL 32399-2400

Ron DeSantis Governor

Alexis A. Lambert Secretary

To: HW683 Contract Negotiation File Colonial/Touch of Class Greenacres, Palm Beach County, Florida

ERIC_5222

From: Sarah Aduwa, Project Manager Date: April 28, 2025 Subject: Negotiation Summary

HW683_DC002E-2

This Task Assignment Change Orders authorizes a cost decrease in accordance with Geosyntec scope of work, cost estimate and schedule received on April 25,2025. The total decrease is $35,028.46.

The SVE system was shut down in June 2024, O & M activities for subtasks 4, 5, 6 (July 2024 to January 2025) are descoped with this change order.

Subtask 3 to 6 – April 2024 to January 2025 O and M Reporting TACO-2: SVE system was shutdown in June 2024 to conduct field work for additional assessment authorized under TA DC002D. The system was not restarted and no additional O&M was performed. The battery backup costs and PRM support were moved from ST4 to ST3, and the TO-15 analyses and associated field and shipping costs were removed.

All remaining labor and costs were removed since the system was not operating and the Semi-Annual Report would have only included two months of operation instead of six months.

Subtask 7 – Utilities Actual utility costs for 5 months of O and M

The FDEP Project Manager agrees to the scope of work and final cost associated with this Task Assignment. The final cost is $28,482.04 with 154 labor hours.

LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE : Colonial/Touch of Class SUBTASK 2: Year 4 Quarter 1: Feb 2024 - Mar 2024 O&M and Annual Report

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka 2

Senior Professional A. Smith 7

Project Professional M. Hensley 3

Senior Staff Professional T. Hood 28

Staff Professional T. Tompkins

Administrative Assistant S. Darling 2

TOTAL LABOR 77

VEHICLE TYPE RATE UNIT USEAGE

Truck 2 days O&M, 1 day GW sampling, 1 mob for IDW $120.00 Day 4 $480.00

Subtotal $480.00

TOTAL VEHICLE $480.00

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST

IDW

Water Recovery - Non-Haz Disposal & Transportaion 1 drum $105.00 $105.00 Haz Disposal & Transportaion 1 drum $0.00 $0.00

Subtotal $105.00

TOTAL $105.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

VOHs - GW February Annual Sampling: 7 MWs + 1 IDW $73.00 8 0 $584.00

TO-15 - Vapor VOCs February Shutdown (pre-bump): 1 Influent, 4 VEWs March Startup (Bump Test): 1 influent, 4 VEWs $200.00 10 0 $2,000.00

Subtotal $2,584.00 Fast Turnaround Charges Percent

24 Hours 110% $0.00 0 $0.00 3 Days 65% $0.00 0 $0.00 1 Week 20% $0.00 0 $0.00

Subtotal $0.00 Shipping summa cans and GW samples Large Cooler (25 to 50 lbs) $150.00 4 $600.00 IDW sample Small Cooler (0 to 25 lbs) $110.00 1 $110.00

Subtotal $710.00

TOTAL LAB $3,294.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related Groundwater Sampling Kit $290.00 Day 1 $290.00 Water Level Meter $25.00 Day 1 $25.00 YSI 556 MPS $105.00 Day 0 $0.00

Subtotal $315.00 IDW Related

Drum $100.00 each 2 $200.00 Subtotal $200.00

Expendables 2 day O&M, 1 day GW sampling $40.00 Day 3 $120.00

Subtotal $120.00 Other

O&M supplies $75.00 Day 2 $150.00 O&M Kit $360.00 Day 2 $720.00 Air Sampling Canister (Summa) $33.00 Day 10 $330.00

Subtotal $1,200.00

TOTAL EQUIPMENT $1,835.00

2 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 16 hrs);

Annual GW sampling event: 1 rd trip mob (2 hrs), GW equip calibration (pre, post) (1 hr), collect water levels at 7 wells (1 hr), and sample 7 wells @ 1.5 hrs/well (11 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs) report formatting, PDF assembly and compilation

Quarterly O&M data and optimization evaluation (2 hrs), Groundwater data evaluation (2 hrs); Annual report data evaluation and interpretation (2 hrs); Authored Annual Report (3 hrs)

Generate groundwater elevation contour map, update historical groundwater quality figure, genrate ROI figure (3 hrs)

Monthly data evaluation and summary email (2 hrs/event - 4 hrs); update GW and air result tables (2 hrs); draft groundwater contour and spider plot figures (2 hrs), Annual SVE O&M Report (20 hrs)

FINAL --7/24/96

SUBTASK 3: Year 4 Quarter 2: Apr 2024-Jun 2024 O&M and Reporting

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal

T. Kafka 6

Senior Professional

A. Smith 5

Project Professional

B. McBath 3

Senior Staff Professional T. Hood 12

Staff Professional T. Tompkins 33

TOTAL LABOR 59

VEHICLE TYPE RATE UNIT USEAGE

Car $80.00 Day 0 $0.00

Truck 3 days O&M, 1 mob for IDW, 1 mob for troubleshooting $120.00 Day 5 $600.00

Van $120.00 Day 0 $0.00

Subtotal $600.00

TOTAL VEHICLE $600.00

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST

Telemetry

PRM Annual Telemetry Fee $1,267.95 $1,267.95

Processing Fee (telemetry) $20.00 $20.00

Subtotal $1,287.95

TOTAL $1,287.95

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

Analytical TO-15 - Vapor VOCs May 2024 Shutdown (pre-bump): 4 VEWS, 1 Influent

June 2024 Startup (bump test): 4 VEWs, 1 Influent $200.00 0 0 $0.00

Subtotal $0.00

Fast Turnaround Charges Percent

24 Hours 110% $0.00 0 $0.00

3 Days 65% $0.00 0 $0.00

1 Week 20% $0.00 0 $0.00

Subtotal $0.00

Shipping summa cans Large Cooler (25 to 50 lbs) $150.00 0 $0.00

Small Cooler (0 to 25 lbs) $110.00 0 $0.00

Subtotal $0.00

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related

Groundwater Sampling Kit $290.00 Day 0 $0.00

Water Level Meter $25.00 Day 0 $0.00

YSI 556 MPS $105.00 Day 0 $0.00

Subtotal $0.00

IDW Related

Drum IDW generated from MS $100.00 each 1 $100.00

Subtotal $100.00

Expendables

3 days O&M, 1 remob $40.00 Day 4 $160.00

Subtotal $160.00

Other

O&M supplies $75.00 Day 3 $225.00

O&M Kit $360.00 Day 3 $1,080.00

Air Sampling Canister (Summa) $33.00 Day 0 $0.00 battery backup replacement $120.00 1 $120.00

PRM Filtration customer service rate $125.00 Hour 1 $125.00

Subtotal $1,550.00

TOTAL EQUIPMENT $1,810.00

3 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 24 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs); 1 visit to reattempt June O&M

Quarterly O&M data and optimization evaluation (5 hrs), Technical support

Quarterly data interpretation (3 hrs), Bump test evaluation (2 hrs)

SVE system troubleshooting

Monthly data evaluation and summary email (2 hrs/event - 6 hrs); update air result tables (2 hrs); SVE System troubleshooting, FPL troubleshooting, PRM troubleshooting

SUBTASK 7: Utilities: Feb 2023 - June 2024

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST Quantity

Utilities FPL bills Feb-24 $79.83 1 $79.83

Mar-24 $332.67 1 $332.67 Apr-24 $260.17 1 $260.17 May-24 $257.71 1 $257.71 Jun-24 $221.52 1 $221.52

Subtotal $1,151.90

Processing Fee (electrical) 5 months x $20/month $20.00 5 $100.00

TOTAL $1,251.90

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

TOTAL EQUIPMENT $0.00

SUBTASK 3: Year 4 Quarter 2: Apr 2024-Jun 2024 O&M and Reporting

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal

T. Kafka

Senior Professional

A. Smith

Project Professional

B. McBath

Senior Staff Professional T. Hood

Staff Professional T. Tompkins

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE

Car $80.00 Day 0 $0.00

Truck 3 days O&M, 1 mob for IDW, 1 mob for troubleshooting $120.00 Day $0.00

Van $120.00 Day 0 $0.00

Subtotal $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST

Telemetry

PRM Annual Telemetry Fee $0.00

Processing Fee (telemetry) $0.00

Subtotal $0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

Analytical TO-15 - Vapor VOCs May 2024 Shutdown (pre-bump): 4 VEWS, 1 Influent

June 2024 Startup (bump test): 4 VEWs, 1 Influent $200.00 -10 0 ($2,000.00)

Subtotal ($2,000.00)

Fast Turnaround Charges Percent

24 Hours 110% $0.00 0 $0.00

3 Days 65% $0.00 0 $0.00

1 Week 20% $0.00 0 $0.00

Subtotal $0.00

Shipping summa cans Large Cooler (25 to 50 lbs) $150.00 -6 ($900.00)

Small Cooler (0 to 25 lbs) $110.00 0 $0.00

Subtotal ($900.00)

TOTAL LAB ($2,900.00)

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related

Groundwater Sampling Kit $290.00 Day 0 $0.00

Water Level Meter $25.00 Day 0 $0.00

YSI 556 MPS $105.00 Day 0 $0.00

Subtotal $0.00

IDW Related

Drum IDW generated from MS $100.00 each $0.00

Subtotal $0.00

Expendables

3 days O&M, 1 remob $40.00 Day $0.00

Subtotal $0.00

Other

O&M supplies $75.00 Day $0.00

O&M Kit $360.00 Day $0.00

Air Sampling Canister (Summa) $33.00 Day -10 ($330.00) battery backup replacement $120.00 1 $120.00

PRM Filtration customer service rate $125.00 Hour 1 $125.00

Subtotal ($85.00)

TOTAL EQUIPMENT ($85.00)

3 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 24 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs); 1 visit to reattempt June O&M

Quarterly O&M data and optimization evaluation (5 hrs), Technical support

Quarterly data interpretation (3 hrs), Bump test evaluation (2 hrs)

SVE system troubleshooting

Monthly data evaluation and summary email (2 hrs/event - 6 hrs); update air result tables (2 hrs); SVE System troubleshooting, FPL troubleshooting, PRM troubleshooting

SUBTASK 4: Year 4 Quarter 3: Jul 2024-Sept 2024 O&M and Semi-Annual Report

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka -3

Project Professional B. McBath -5

Project Professional

M. Hensley -3

Senior Staff Professional T. Hood -30

Staff Professional T. Tompkins

-35

Senior Professional

N. Barnes -7

Administrative Assistant S. Darling -2

TOTAL LABOR -85

VEHICLE TYPE RATE UNIT USEAGE

Car $80.00 Day 0 $0.00

Truck 3 days O&M, 1 day GW sampling, 1 mob for IDW, 1 mob for battery back up replacement $120.00 Day -6 ($720.00)

Van $120.00 Day 0 $0.00 Subtotal ($720.00)

TOTAL VEHICLE ($720.00)

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST

IDW

Water Recovery - Non-Haz Disposal & Transportaion 1 drum ($105.00) ($105.00) Haz Disposal & Transportaion 1 drum $0.00 $0.00

Subtotal ($105.00)

TOTAL ($105.00)

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

VOHs - GW 2 MWs + 2 IDW (September 2024) $73.00 -4 0 ($292.00) TO-15 - Vapor VOCs August 2024 Shutdown (pre-bump): 4 VEWS, 1 Influent

September 2024 Startup (Bump Test): 4 VEWs, 1 Influent $200.00 -10 0 ($2,000.00)

Subtotal ($2,292.00) Fast Turnaround Charges Percent

24 Hours 110% $0.00 0 $0.00 3 Days 65% $0.00 0 $0.00 1 Week 20% $0.00 0 $0.00

Subtotal $0.00 Shipping summa cans Large Cooler (25 to 50 lbs) $150.00 -6 ($900.00) GW and IDW samples Small Cooler (0 to 25 lbs) $110.00 -2 ($220.00)

Subtotal ($1,120.00)

TOTAL LAB ($3,412.00)

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related Groundwater Sampling Kit $290.00 Day -1 ($290.00) Water Level Meter $25.00 Day -1 ($25.00) YSI 556 MPS $105.00 Day 0 $0.00

Subtotal ($315.00) IDW Related

Drum $100.00 each -1 ($100.00) Subtotal ($100.00)

Expendables 3 days O&M, 1 day GW samplin, 1 day for battery backup replacement $40.00 Day -5 ($200.00)

Subtotal ($200.00) Other

O&M supplies $75.00 Day -3 ($225.00) O&M Kit $360.00 Day -3 ($1,080.00) Air Sampling Canister (Summa) $33.00 Day -10 ($330.00) battery backup replacement $120.00 -1 ($120.00) PRM Filtration customer service rate $125.00 Hour -1 ($125.00)

Subtotal ($1,880.00)

TOTAL EQUIPMENT ($2,495.00)

report formatting, PDF assembly and compilation

Groundwater data evaluation (2 hrs); Annual report data evaluation, interpretation, and preparation (5 hrs)

Quarterly O&M data and optimization evaluation (3 hrs)

1 mob to the site to replace battery backup device (5 hr)

Generate groundwater elevation contour map, update historical groundwater quality figure, genrate ROI figure (3 hrs)

Monthly data evaluation and summary email (2 hrs/event - 6 hrs); update GW and air result tables (2 hrs); draft groundwater contour and spider plot figures (2 hrs), Annual SVE O&M Report (20 hrs)

3 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 24 hrs);

Semi-Annual GW sampling event: 1 rd trip mob (2 hrs), GW equip calibration (pre, post) (1 hr), collect water levels at 7 wells (1 hr), and sample 2 wells @ 1.5 hrs/well (3 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs)

SUBTASK 5: Year 4 Quarter 4: Oct 2024 - Dec 2024 O&M and Reporting

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka -3

Senior Professional N. Barnes -4

Senior Staff Professional T. Hood -7

Staff Professional T. Tompkins

-28

TOTAL LABOR -42

VEHICLE TYPE RATE UNIT USEAGE

Car $80.00 Day 0 $0.00 Truck 3 days O&M, 1 mob for IDW $120.00 Day -4 ($480.00) Van $120.00 Day 0 $0.00

Subtotal ($480.00)

TOTAL VEHICLE ($480.00)

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

VOHs - GW $73.00 0 0 $0.00 TO-15 - Vapor VOCs November 2024: 1 Influent $200.00 -1 0 ($200.00)

Subtotal ($200.00) Fast Turnaround Charges Percent

24 Hours 110% $0.00 0 $0.00 3 Days 65% $0.00 0 $0.00 1 Week 20% $0.00 0 $0.00

Subtotal $0.00 Shipping summa cans Large Cooler (25 to 50 lbs) $150.00 -1 ($150.00) GW and IDW samples Small Cooler (0 to 25 lbs) $110.00 0 $0.00

Subtotal ($150.00)

TOTAL LAB ($350.00)

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Analytical Related Groundwater Sampling Kit $290.00 Day 0 $0.00 Water Level Meter $25.00 Day 0 $0.00 YSI 556 MPS $105.00 Day 0 $0.00

Subtotal $0.00 IDW Related

Drum $100.00 each 0 $0.00 Subtotal $0.00

Expendables 3 days O&M $40.00 Day -3 ($120.00)

Subtotal ($120.00) Other

O&M supplies $75.00 Day -3 ($225.00) O&M Kit $360.00 Day -3 ($1,080.00) Air Sampling Canister (Summa) $33.00 Day -1 ($33.00)

Subtotal ($1,338.00)

TOTAL EQUIPMENT ($1,458.00)

Quarterly O&M data and optimization evaluation (3 hrs)

Groundwater data evaluation (2 hrs); Bump test data evaluation (2 hrs)

Monthly data evaluation and summary email (2 hrs/event - 6 hrs); update air result tables (1 hrs)

3 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 24 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs)

SUBTASK 6: Year 5 Quarter 1: Jan 2025 O&M and Reporting

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Principal T. Kafka -2

Senior Professional N. Barnes -2

Project Professional

M. Hensley

Senior Staff Professional T. Hood -4

Staff Professional T. Tompkins

-12

TOTAL LABOR -20

VEHICLE TYPE RATE UNIT USEAGE

Car $80.00 Day 0 $0.00 Truck 1 days O&M, 1 mob for IDW $120.00 Day -2 ($240.00) Van $120.00 Day 0 $0.00

Subtotal ($240.00)

TOTAL VEHICLE ($240.00)

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables 1 day O&M $40.00 Day -1 ($40.00)

Subtotal ($40.00) Other

O&M supplies $75.00 Day -1 ($75.00) O&M Kit $360.00 Day -1 ($360.00) Air Sampling Canister (Summa) $33.00 Day 0 $0.00

Subtotal ($435.00)

TOTAL EQUIPMENT ($475.00)

Quarterly O&M data and optimization evaluation (2 hrs)

Quarterly data interpretation (2 hr)

Monthly data evaluation and summary email (2 hrs/event - 4 hrs)

1 O&M visits (8 hrs each incl rd trip, prep, breakdown - total 8 hrs); 1 rd trip mobe to drain moisture separator and manage onsite IDW (4 hrs)

SUBTASK 7: Utilities: Feb 2023 - June 2024

DATE: 4/25/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST Quantity

Utilities FPL bills 2/1/2024 to June 2024 $79.83 1 $79.83

Mar-24 $332.67 1 $332.67 Apr-24 $260.17 1 $260.17 May-24 $257.71 1 $257.71 Jun-24 $221.52 1 $221.52 -12 months estimate $350.00 -12 ($4,200.00)

Subtotal ($3,048.10)

Processing Fee (electrical) -7 months x $20/month $20.00 -7 ($140.00)

TOTAL ($3,188.10)

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

TOTAL EQUIPMENT $0.00

12801 Tampa Oaks Blvd., Suite 151 Tampa, Florida 33637

PH 813.558.0990

FAX 813.558.9726

www.geosyntec.com

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2

25 April 2025

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

Subject: 12 Months O&M – Year 4 & 5 - Soil Vapor Extraction System Task Assignment Change Order 2 Colonial/Touch of Class 4552 Lake Worth Road Greenacres, Palm Beach County, Florida 33463 FDEP Facility ID NO. ERIC_5222 Contract HW683, Task Assignment DC002E

Dear Sarah:

Geosyntec Consultants, Inc. (Geosyntec) has prepared this Statement of Work (SOW) and Level of Effort (LOE) for twelve months (February 2024 through January 2025) of operations and maintenance (O&M), of the soil vapor extraction (SVE) system at Colonial/Touch of Class (Site) (Facility ID - ERIC 5222) located in Greenacres, Florida. The SVE system startup occurred 30 November 2020 through 2 December 2020. Monthly O&M has been conducted at the Site since startup, and air and groundwater sampling has been performed in general accordance with Table 6 of the FDEP-approved May 2020 Interim Source Removal (ISR) Work Plan. Geosyntec and the FDEP confirmed on 30 June 2022, that an Access Agreement with the current real property owner of the Colonial/Touch of Class (ERIC_5222) Site has been executed.

This LOE is subdivided into subtasks by quarter. For ease of reference, the major scope elements are outlined below as they will pertain to multiple subtasks in some cases. Each subtask will be outlined separately thereafter.

TACO-1 revisions to the original SOW are provided in red font; Work Change Directive (WCD) 1 are also reconciled in TACO-1.

Colonial/Touch of Class – Year 4 & 5 (12 Months) O&M SOW 26 October 2023 (25 April 2025)

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1)

TACO-2 descopes effort from Subtasks 4 through 6 due to shutdown of the SVE system in June 2024. Effort to install the battery backup is not being charged to DEP.

SCOPE OF WORK ELEMENTS

Monthly SVE System O&M Tasks

Geosyntec personnel will conduct 12 monthly O&M visits to the Site beginning in February 2024 (Months 38 to 49 of system operation). During each O&M visit, Geosyntec personnel will perform the following tasks:

record vacuum, pressure, and temperature readings at the SVE blower;

record air flow rates at the blower and five vapor extraction wells (VEWs);

record vacuum readings at the five VEWs (VEW-1 through VEW-5), MW001 and VMP01 through VMP05;

drain fluids accumulated in the moisture separator and disposing of fluids in a 55-gallon drum as investigation derived waste (IDW; water from the moisture separator at the Site has been sampled, analyzed for volatile organic halocarbons [VOHs] and characterized as non-hazardous);

collect groundwater level measurements from monitoring wells MW001 through

MW007;

perform required air sampling;

inspect and clean the equipment compound; and perform periodic equipment maintenance activities recommended by equipment manufacturers.

The results of the monthly system O&M activities will be documented in a site-specific O&M log, which will be submitted to the FDEP with the monthly O&M summary emails.

Bump Tests

Bump tests will be conducted during the March 2024 O&M, June 2024 O&M, and September 2024 O&M events. These bump tests will consist of collecting air samples from VEW-1 through VEW-4 and the SVE influent during the February 2024, May 2024, and August 2024 O&M events prior to shutting down the system. Upon system restart, air samples from the VEW-1 through VEW-4 and the SVE influent will be collected during the March 2024, June 2024, and September 2024 O&M events. Air samples will be collected with summa canisters and analyzed at a fixed-

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1) base laboratory for Volatile Organic Hydrocarbons (VOHs) by EPA Method TO-15. The results of the bump tests will be provided in the monthly summary emails.

Groundwater sampling

In accordance with Table 6 of the approved May 2020 ISR Work Plan, monitoring wells MW001 through MW007 will be sampled annually (February 2024) and monitoring wells MW001 and MW002 will be sampled semi-annually (September 2024). Prior to collecting groundwater samples, depth to water measurements will be collected from MW001 through MW007. The groundwater samples will be analyzed by a Florida Department of Health (FDOH) National Environmental Laboratories Accreditation Conference (NELAC)certified laboratory for VOHs using EPA Method 8260. Results of the groundwater sampling event will be documented in the O&M report for the same reporting period.

IDW Generation and Management

Four drums of groundwater IDW are assumed to be generated during monitoring well sampling and moisture collected in the moisture separator over the course of twelve months. IDW from groundwater monitoring well sampling has been previously characterized as hazardous waste due to the elevated PCE concentrations from one well. IDW from moisture collected in the moisture separator has been previously characterized as non-hazardous waste. Geosyntec requested costs for non-hazardous and hazardous waste from 3 contractors; cost estimates were obtained from Erwin Remediation (quoted non-hazardous rates only), Water Recovery (quoted non-hazardous rate only), and EnviroServe (quoted non-hazardous rates only) are included as Attachment A.

Based on the provided estimates, Water Recovery has the lowest rate for transportation and disposal (T&D) of 1 drum of non-hazardous liquid ($105) and will be utilized. For T&D of 1 drum of hazardous liquid, additional quotes will be requested, and a task assignment change order (TACO) will be submitted prior to scheduling T&D of hazardous drum. A VOH sample is required to establish a new profile with the vendor ($73/drum).

Air sampling

In accordance with Table 6 of the approved May 2020 ISR Work Plan, air emissions will be monitored by sampling combined influent air from the VEWs on a quarterly basis at the Site (one air sample per quarter). Combined effluent will not be sampled as the granular activated carbon (GAC) was removed from the SVE system on 11 May 2021 following the 7 April 2021 sampling event that continued to show that VOHs were below the Hazardous Air Pollutant (HAP) criteria

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1) requiring GAC treatment. Air samples will be collected with a summa canister and analyzed at a fixed-base laboratory for VOHs by EPA Method TO-15.

Reporting

A Year 3 Annual O&M Report (following Month 39 [March 2024]) and Year 4 Semi-annual O&M Report (following Month 45 [September 2024]) will be prepared to document the results of O&M activities. The O&M reports will include, at a minimum, the following:

results of laboratory analyses of air samples (tabular and graphical form);

results of laboratory analyses of groundwater samples (tabular and illustrative form) O&M activities performed during the reporting period;

the calculated mass of PCE (and daughter products, if detected) removed by the SVE system during the reporting period, and cumulative total removed since startup;

the SVE system hours of operation during the reporting period;

information regarding the depth to groundwater;

information regarding any repairs and/or modifications made to the SVE system;

vacuum ROI data (tabular and illustrative form); and recommendations and conclusions pertaining to the continued operation and/or optimization of the SVE system.

Utilities

Monthly electrical utility bills have been estimated at $350 based on the previous year’s average monthly invoices from Florida Power & Light. Telemetry is currently provided by PRM and is available through 31 December 2023. An invoice from PRM for annual telemetry services from 1 January 2024 to 31 December 2024 was received and will be utilized. The cost of telemetry for 2024 is $105.66 per month with taxes for a total of $1,267.95 (Attachment A). The utilities also include a $20 monthly processing fee for electrical service and a one-time monthly processing fee for annual telemetry.

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1)

LOE SUBTASKS

Subtask 1: Project Management

Subtask 2: Year 4 Quarter 1: February 2024 (Month 38) to March 2024 (Month 39) O&M and Annual Report

Two months of O&M with monthly email summaries to FDEP, pre-bump test related air sampling in Month 38 (February 2024), annual groundwater sampling in Month 38 (February 2024), bump test related air sampling in Month 39 (March 2024), and Annual O&M report following Month 39 (March 2024).

Subtask 3: Year 4 Quarter 2: April 2024 (Month 40) to June 2024 (Month 42) O&M and Reporting

Three months of O&M with monthly email summaries to FDEP, pre-bump test related air sampling in Month 41 (May 2024), and bump test related air sampling in Month 42 (June 2024).

TACO-1/WCD-1: During the June O&M event, the system was disconnected from the electrical power. After troubleshooting, it was assumed to be an FPL issue; therefore, O&M could not be performed. Additionally cost to remobilize to the Site for monthly O&M once the power issue is resolved.

TACO-2: SVE system was shutdown in June 2024 to conduct field work for additional assessment authorized under TA DC002D. The system was not restarted and no additional O&M was performed. The battery backup costs and PRM support were moved from ST4 to ST3, and the TO-15 analyses and associated field and shipping costs were removed. The O&M summaries for April, May/June (related to O&M and troubleshooting due to electrical power issues with FPL and the system, resulting in at least four site visits for the quarter) were submitted to FDEP on 5/22/24 and 8/1/24 and serve as the final deliverables for this TA.

Subtask 4: Year 4 Quarter 3: July 2024 (Month 43) to September 2024 (Month 45) O&M and Semi-Annual Report

Three months of O&M with monthly email summaries to FDEP, pre-bump test related air sampling in Month 44 (August 2024), bump test related air sampling in Month 45 (September 2024), semi-annual groundwater sampling in Month 45 (September 2024), and Semi-Annual O&M report following Month 45 (September 2024).

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1)

TACO-1: After the initial troubleshooting and discussions with PRM Filtration, it was determined that the issue is presumed to be a nonfunctional battery backup device. The cost to purchase a new battery back up device and the cost for mobilizing to the Site to resolve the issue has been included.

The Senior Professional (A. Smith) on the original TA is no longer with the firm. Labor hours for Smith are replaced with N. Barnes and his labor rate, which is a similar rate.

TACO-2: SVE system was shutdown in June 2024 to conduct field work for additional assessment authorized under TA DC002D. The system was not restarted and no additional O&M performed.

The battery backup costs and PRM support were moved from ST4 to ST3. All remaining labor and costs were removed since the system was not operating and the Semi-Annual Report would have only included two months of operation instead of six months.

Subtask 5: Year 4 Quarter 4: October 2024 (Month 46) to December 2024 (Month 48) O&M and Reporting

Three months of O&M with monthly email summaries to FDEP and influent air sampling in Month 47 (November 2024).

TACO-1: The Senior Professional (A. Smith) on the original TA is no longer with the firm. Labor hours for Smith are replaced with N. Barnes and his labor rate, which is a similar rate.

TACO-2: The system was not restarted after June 2024 and no monthly O&M performed.

Subtask 6: Year 5 Quarter 1: January 2025 (Month 49) O&M and Reporting

One month of O&M with monthly email summaries to FDEP.

TACO-1: The Senior Professional (A. Smith) on the original TA is no longer with the firm. Labor hours for Smith are replaced with N. Barnes and his labor rate, which is a similar rate.

TACO-2: The system was not restarted after June 2024 and no monthly O&M performed.

Subtask 7: Utilities - February 2024 (Month 38) to January 2025 (Month 49)

Twelve months of O&M utility costs.

TACO-2: 5 months of FPL electrical bills have been generated to date.

Invoice and Deliverable Schedule:

FR3169E/Colonial TOC (ERIC_5222)_SOW-LOE_HW683_DC002E-2 (TACO-1)

Subtask Deliverable Deliverable Due Date

Invoice Amount

Year 4 Quarter 1: February 2024 to March 2024 O&M summary emails & Annual Report 4/30/24

$14,418.05 (approved for invoicing on

7/8/24)

3, 1 Year 4 Quarter 2: April 2024 to June 2024 O&M summary emails (submitted) 5/30/25 $12,812.09

Year 4 Quarter 3: July 2024 to September 2024 O&M and Semi-Annual Report 10/30/24 $16,560.97

Year 4 Quarter 4: October 2024 to December 2024 O&M and Reporting 1/30/25 $7,0007.01

1,6 Year 5 Quarter 1: January 2025 O&M summary email; PM 2/30/25 $7,336.06

7 Utilities 5/30/25 $1,251.90 Total $28,482.04

As always, we appreciate the opportunity to continue working on this project for the FDEP. Please contact me at 561.922.1033 if you have any questions.

Tori Hood Todd Kafka, P.G.

Senior Staff Professional Senior Principal Geologist

Attachments Cost Estimate Form

Funding Information:

Org. Code E.O.

Object Code

Budget Entity Appropriation

Category Grant # Project # Year Amount

Additional Funding Information attached on separate page.

Rev. 8/17/2020

STATE OF FLORIDA

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Task Assignment Change Order This Change Order is entered into between the Parties named below and amends the Task Assignment (TA) and any previous TA Change Orders (TACO) as follows:

1. TA Number: TACO Number: Contract Number:

TACO Description:

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

Department�s Project Manager: Department�s 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 Name:

4. There are no changes to the TA compensation.

The compensation of the TA is changed to the amounts indicated below:

Amended Price Price Prior to TACO

Fixed Price:

Fixed Unit Rate: (Extended Price)

Cost Reimbursement:

Total TA Value:

There are no changes to the TA Expiration Date.

The TA Completion Date is changed from ______________ to ______________ (a total of ______ days).

6. There are no changes to the Attachments.

Attachment ___ is replaced with Attachment -____.

7. No Additional Changes.

Additional Changes:

8. All other terms and conditions of the TA remain in effect. If and to the extent that any inconsistencies may appear between the TA and this TACO, the provisions of this TACO shall control.

IN WITNESS WHEREOF, this TACO 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.

DC002E 1 HW683

Sarah Aduwa 850-245-8973 Contractor Geosyntec Contractor

Contractor Tori Hood Contractor 225-955-1864

ERIC_5222

Colonial/Touch of Class

$ 58,042.56 $ 55,026.42

$ 5,467.95 $ 5,467.95

$ 63,510.51 $ 60,494.37

Completion Completion 04/30/2025 04/30/2025 0

1 1

Geosyntec Contractor

Todd Kafka

Contract Manager

Todd Kafka, P.G. Digitally signed by Todd Kafka, P.G.

Date: 2024.12.18 15:17:56 -05'00'

Jennifer Farrell

Digitally signed by Jennifer Farrell Date: 2024.12.18 14:26:14 -05'00'

This Task Assignment Change Orders authorizes a cost increase and reconciles WCD #1 in accordance with Geosyntec scope of work, cost estimate and schedule received on November 15, 2024.

Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

HW683

DC002E

$ 63,510.51

Subtask 2 - Year 4 Quarter 1: February 2024 to March 2024 O&M summary emails & Annual Report

Subtask 3 - Submittal of Year 4 Quarter 2: April 2024 to June 2024 O&M summary emails

Subtask 4 - Submittal of Year 4 Quarter 3: July 2024 to September 2024 O&M and Semi-Annual Report

Subtask 5 - Submittal of Year 4 Quarter 4: October 2024 to December 2024 O&M and Reporting

Subtask 1, 6, - Submittal of Year 5 Quarter 1: January 2025 O&M summary email;

PM

Subtask 7 - Submittal of Utility invoices

Subtask 2 - Year 4 Quarter 1: February 2024 to March 2024 O&M summary emails & Annual Report

Subtask 4 - Submittal of Year 4 Quarter 3: July 2024 to September 2024 O&M and Semi-Annual Report

Subtask 5 - Submittal of Year 4 Quarter 4: October 2024 to December 2024 O&M and Reporting

Subtask 7 - Submittal of Utility invoices

Subtask 1, 6, - Submittal of Year 5 Quarter 1: January 2025 O&M summary email;

PM

Subtask 3 - Submittal of Year 4 Quarter 2: April 2024 to June 2024 O&M summary emails

04/30/2024

07/30/2024

10/30/2024

01/30/2025

03/30/2025

02/28/2025

$ 13,748.42

$ 14,418.05

$ 16,560.97

$ 7,007.01

$ 7,336.06

$ 4,440.00