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.

HW689

DC011D March 20, 2026

This TA authorizes APTIM to perform 12 months of O&M of the remedial system at

Spot Busters Cleaners in Coconut Creek, Broward County.

Nicole Knutson 850-245-8763 APTIM Environmental & Infrastructure, LLC

Eric Kramer 407 287 3216

ERIC_4244

6750 North State Road 7, Coconut Creek, Broward County

Spot Busters Cleaners

$ 43,290.97

$ 4,500.00

$ 47,790.97

Scope of Work

APTIM Environmental & Infrastructure, LLC

Kramer, Eric K Digitally signed by Kramer, Eric K Date: 2024.12.19 14:51:51 -05'00'

Jennifer Farrell

Digitally signed by Jennifer Farrell Date: 2024.12.19 14:22:15 -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

FLORIDA DEPARTMENT OF

Environmental Protection

Bob Martinez Center 2600 Blair Stone Road

Tallahassee, FL 32399-2400

Ron DeSantis Governor

Jeanette Nuñez Lt. Governor

Alexis A. Lambert Secretary

Memorandum

TO: ERIC_4244

Spot Busters Cleaners

FROM: Nicole Knutson, Project Manager

SUBJECT: Negotiation Summary

HW689 DC011D

DATE: December 16, 2024

This TA authorizes APTIM to perform 12 months of O&M of the remedial system at Spot Busters Cleaners in Coconut Creek, Broward County.

Total task amount is $47,790.97. APTIM’s time, labor, and subcontractor costs for these activities have been reviewed and are appropriate. The level-of-effort and cost estimate are reasonable for the scope of services. Final deliverable due date is January 30, 2026. Task completion date is March 20, 2026.

SITE :

SUBTASK:

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 5

Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay 43

Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 12

Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 60

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 3 $360.00

TOTAL VEHICLE $360.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 1 0 $200.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 1 $110.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $310.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 3 $120.00 PPE Level D $35.00 Day 3 $105.00 Construction/O&M Kit $360.00 Day 3 $1,080.00

Construction O&M Supplies $75.00 Day 3 $225.00

TOTAL EQUIPMENT $1,530.00

Spot Busters Cleaners

12/2/2024

Engineering evaluation of monthly data, direct staff engineer for system adjustments (3 hrs.). Submital of the Quarterly monthly reports O&M data collection sheets. (2 hrs.)

2-Qtr 1 O&M Jan-Mar 2025

Monthly Base Work - Loadout prep. (1 hr), Travel Round Trip (6 hrs), SVE O&M (6 hrs) {total = 13 hrs x 3 mo = 39 hrs. Additional work (each quarter) includes SVE Vacuum Readings and collection of VOC Vapor Sample (total 4 hrs).

Daily telemetry checks to verify the SVE system is operating as scheduled (3 hrs per month x 3 months = 9 hrs). SVE performance evaluation and system optimization (3 hrs).

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 5

Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay 43

Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 12

Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 60

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 3 $360.00

TOTAL VEHICLE $360.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 1 0 $200.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 1 $110.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $310.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 3 $120.00 PPE Level D $35.00 Day 3 $105.00 Construction/O&M Kit $360.00 Day 3 $1,080.00

Construction O&M Supplies $75.00 Day 3 $225.00

TOTAL EQUIPMENT $1,530.00

3- Qtr 2 O&M Apr-Jun

Spot Busters Cleaners

12/2/2024

Engineering evaluation of monthly data, direct staff engineer for system adjustments (3 hrs.). Submital of the Quarterly monthly reports O&M data collection sheets. (2 hrs.)

Monthly Base Work - Loadout prep. (1 hr), Travel Round Trip (6 hrs), SVE O&M (6 hrs) {total = 13 hrs x 3 mo = 39 hrs. Additional work (each quarter) includes SVE Vacuum Readings and collection of VOC Vapor Sample (total 4 hrs).

Daily telemetry checks to verify the SVE system is operating as scheduled (3 hrs

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 0 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

FP&L-Electrical Service January-June 2025 $375.00 Month 6 $2,250.00 Handling fee Electrical $20.00 Month 6 $120.00

Sensaphone Cellular telemetry $28.00 Month 6 $168.00 Handling fee telemetry $20.00 Year 0 $0.00

TOTAL $2,538.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 0 0 $0.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 0 $0.00 Construction/O&M Kit $360.00 Day 0 $0.00

Construction O&M Supplies $75.00 Day 0 $0.00

TOTAL EQUIPMENT $0.00

Spot Busters Cleaners

4-Utilities Qtr 1&2 (Jan-June)

12/2/2024

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 4

Engineer/Scientist 5 G. Roberts 2 Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 25

Designer 2 S. Ferianc 4 Technical Pub Specialist 3 H. Vining 3

TOTAL LABOR 38

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 0 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 0 0 $0.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 0 $0.00 Construction/O&M Kit $360.00 Day 0 $0.00

Construction O&M Supplies $75.00 Day 0 $0.00

TOTAL EQUIPMENT $0.00

Spot Busters Cleaners

5-Semi-Annual Report

12/2/2024

Engineering evaluation of monthly data for first six months system operation, PE seal of Semi-Annual O&M report, evaluate data, develop recommendations and conclusions (4 hrs.)

Data quality evaluation and report documentation

Semi-Annual O&M Report (Document Production)

Preparation of Semi-Annual O&M Report includes preparation of SVE operational tables, calculations, figures, O&M site visit summary, SVE system operation & performance.

Semi-Annual O&M Report (Drafting)

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 5

Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay 43

Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 12

Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 60

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 3 $360.00

TOTAL VEHICLE $360.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 1 0 $200.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 1 $110.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $310.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 3 $120.00 PPE Level D $35.00 Day 3 $105.00 Construction/O&M Kit $360.00 Day 3 $1,080.00

Construction O&M Supplies $75.00 Day 3 $225.00

TOTAL EQUIPMENT $1,530.00

Spot Busters Cleaners

6-Qtr 3 O&M Jul-Sept

12/2/2024

Engineering evaluation of monthly data, direct staff engineer for system adjustments (3 hrs.). Submital of the Quarterly monthly reports O&M data collection sheets. (2 hrs.)

Monthly Base Work - Loadout prep. (1 hr), Travel Round Trip (6 hrs), SVE O&M (6 hrs) {total = 13 hrs x 3 mo = 39 hrs. Additional work (each quarter) includes SVE Vacuum Readings and collection of VOC Vapor Sample (total 4 hrs).

Daily telemetry checks to verify the SVE system is operating as scheduled (3 hrs

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 5

Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay 43

Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 12

Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 60

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 3 $360.00

TOTAL VEHICLE $360.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 1 0 $200.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 1 $110.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $310.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 3 $120.00 PPE Level D $35.00 Day 3 $105.00 Construction/O&M Kit $360.00 Day 3 $1,080.00

Construction O&M Supplies $75.00 Day 3 $225.00

TOTAL EQUIPMENT $1,530.00

Spot Busters Cleaners

7-Qtr 4 O&M Oct-Dec

12/2/2024

Engineering evaluation of monthly data, direct staff engineer for system adjustments (3 hrs.). Submital of the Quarterly monthly reports O&M data collection sheets. (2 hrs.)

Monthly Base Work - Loadout prep. (1 hr), Travel Round Trip (6 hrs), SVE O&M (6 hrs) {total = 13 hrs x 3 mo = 39 hrs. Additional work (each quarter) includes SVE Vacuum Readings and collection of VOC Vapor Sample (total 4 hrs).

Daily telemetry checks to verify the SVE system is operating as scheduled (3 hrs

SUBTASK: 8-Utilities Qtr 3&4 (July-December)

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer Engineer/Scientist 5 G. Roberts Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald Designer 2 S. Ferianc Technical Pub Specialist 3 H. Vining

TOTAL LABOR 0

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 0 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noo 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

FP&L-Electrical Service July to December 2025 $375.00 Month 6 $2,250.00 Handling fee Electrical $20.00 Month 6 $120.00

Sensaphone Cellular telemetry $28.00 Month 6 $168.00 Handling fee telemetry $20.00 Year 1 $20.00

TOTAL $2,558.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 0 $0.00 Construction/O&M Kit $360.00 Day 0 $0.00

Construction O&M Supplies $75.00 Day 0 $0.00

TOTAL EQUIPMENT $0.00

Spot Busters Cleaners

12/2/2024

LEVEL OF EFFORT / EXPENSE WORKSHEET

SUBTASK:

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 4

Engineer/Scientist 5 G. Roberts 2

Engineer/Scientist 2 K. Howard

Engineer/Scientist 1 R. Lindsay

Engineer/Scientist 1 B. Blount

Engineer/Scientist 1 K. McDonald 35

Designer 2 S. Ferianc 4 Technical Pub Specialist 3 H. Vining 3

TOTAL LABOR 48

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 0 $0.00

TOTAL VEHICLE $0.00

PER DIEM STAFF RATE UNIT USEAGE TOTALS

Hotel 0 $110.00 Day 0 $0.00 Day 1-leave before 6:00 AM 0 $36.00 Day 0 $0.00 Day 1-Leave between 6 - Noon 0 $30.00 Day 0 $0.00 Day 1-leave before 6:00 PM 0 $19.00 Day 0 $0.00 Day 0 $36.00 Day 0 $0.00

TOTAL PER DIEM $0.00

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method TO-15 (VOC Soil Vapor) $200.00 0 0 $0.00

EPA Method 8260 (Halos Only) $73.00 0 0 $0.00

EPA Method 8260 (Halos Only/IDW) $73.00 0 $0.00

Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day $0.00 Shallow GW Sampling Kit $290.00 Day $0.00 Deep Groundwater Sampling Kit $415.00 Day $0.00 Diffusion Sampler (2" well) $36.00 Day $0.00 55-gallon Drum $100.00 each $0.00

TOTAL EQUIPMENT $0.00

Spot Busters Cleaners

Preparation of Annual O&M Report that includes SVE operational tables, calculations, figures, O&M site visit summary, SVE system operation & performance (35 hrs.)

Annual Groundwater and O&M Reporting (Drafting) Annual Groundwater and O&M Report (Document Production)

9-Annual O&M Report 12/2/2024

Engineering evaluation of monthly data, PE seal of Annual O&M report, evaluate data, develop recommendations and conclusions (4 hrs.)

Technical evaluation of air analytical data (2 hr)

9-Annual O&M Reporting Page 10 of 10 Spot Busters Cleaners DC011D est

Proposed Scope of Work Spot Busters Cleaners 6750 North State Road 7, Coconut Creek, Broward County, FL Remedial System Annual Operation and Maintenance Task Assignment DC011D ERIC_4244 (Former Facility ID No. 069801109) Aptim Environmental & Infrastructure, LLC (APTIM) December 2, 2024

Aptim Environmental & Infrastructure, LLC (APTIM) prepared this Task Assignment (TA) to perform Operation & Maintenance (O&M) activities required to maintain the remedial system recently constructed for twelve months. Additional assessment of contaminant impacts to groundwater is ongoing; therefore, this TA does not include groundwater monitoring. The previous TA (DC015C) for the remedial system installation included the startup which is expected to be completed in December 2024. The services for this TA will start in January 2025 and extend through December 2025.

Subtask 1- Project Management

Project management hours are calculated based on the labor hours anticipated in the scope of work.

Subtask 2: O&M services for Quarter #1 (January through March) of the remedial system operation are included in this task. The services include system maintenance, field and system data collection, verification of efficient system operation and collection of one quarterly vapor influent sample (March 2025) from the remediation system for field screening with a PID and fixed base laboratory analysis. One quarterly monitoring report will be submitted as a deliverable that will present monthly O&M data for each of the three months in the quarter (January, February, and March).

Subtask 3: Quarter #2 (April through June) of O&M services for the remedial system operation are included in this task. The services include system maintenance, field and system data collection, verification of efficient system operation and collection of one quarterly vapor influent sample (June 2025) from the remediation system for field screening with a PID and fixed base laboratory analysis. One quarterly monitoring report will be submitted as a deliverable that will present monthly O&M data for each of the three months in the quarter (April, May, and June).

Subtask 4: Subtask 4 provides funding for electrical power for the first six months of remedial system operation. The telemetry system costs for the first year were included in the new remedial system costs funded by the previous task assignment, so only the electrical power consumption requires funding.

Subtask 5: Preparation of a Semi-Annual Remedial System O&M report (January through June 2025) for two quarters of remedial system operation is funded in this task. The O&M Report will include quarterly influent vapor analytical results, associated forms summarizing field activities performed in support of the remedial system operation, and conclusions and recommendations for continued system operation.

Subtask 6: This task includes the 3rd Quarter of O&M services for the (July through September 2025) for the remedial system operation. The services include system maintenance, field and system data collection, verification of efficient system operation and collection of one quarterly vapor influent sample (September 2025) from the remediation system for field screening with a PID and fixed base laboratory analysis. One quarterly monitoring report will be submitted as a deliverable that will present monthly O&M data for each of the three months per quarter.

Subtask 7: The 4th Quarter of O&M services for (October through December 2025) the remedial system operation is funded in this subtask. O&M services include system maintenance, field and system data collection, verification of efficient system operation and collection of one quarterly vapor influent sample (December 2025) from the remediation system for field screening with a PID and fixed base laboratory analysis. One quarterly monitoring report will be submitted as a deliverable that will present monthly O&M data for each of the three months per quarter.

Subtask 8: Subtask 8 provides funding for electrical power for six months (July through December) of remedial system operation. The costs are estimated based on the remedial system horsepower and operational schedule, which could require adjustment if usage rates change or the system operates differently than estimated. Telemetry system costs were included in the new remedial system costs, so only the electrical power consumption requires funding.

Subtask 9: Included in this subtask is preparation of an annual report that includes the SVE operation and maintenance from data from January through December 2025. The O&M Report will include quarterly influent vapor analytical results, associated forms summarizing field activities performed in support of the remedial system operation, and conclusions and recommendations for continued system operation.

A schedule of the proposed O&M, groundwater sampling, and reporting activities follows:

Qtr. 1 O&M Reporting Due date 4/25/25

Qtr. 2 O&M Reporting Due date 7/25/25

Semi-Annual O&M Report Due Date 8/8//25

Qtr. 3 O&M Reporting Due date 10/24/25

Qtr. 4 O&M Reporting Due date 1/23/26

Annual O&M Report Due date 1/30/26

TA completion Due Date 3/20/26

This proposed scope of work does not include extensive system diagnostics and repairs. Required diagnostic and repair services will be estimated, approved, and funded individually, as required and based on O&M findings.

APTIM proposes to perform this scope of work in accordance with the terms and conditions of the Contract No. HW689 that was executed December 21, 2021 between Florida Department of Environmental Protection and APTIM Environmental & Infrastructure, LLC. APTIM will begin the proposed scope of work upon written authorization. APTIM has an existing Access Agreement in place from the current site owner dated 3/20/18.

If you have any questions, please contact us for clarification.