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.

DC009C 1 HW689

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

Eric Kramer 407-287-3216

ERIC_5462

Blue Ribbon Cleaners (former)

$ 29,361.53 $ 29,651.03

$ 29,361.53 $ 29,651.03

07/17/2026 08/28/2026 42

1 1 1

Kramer, Eric K Digitally signed by Kramer, Eric K Date: 2025.09.11 09:52:02 -04'00'

Mubeen Darji

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

Date: 2025.09.11 08:51:27 -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

Memorandum

TO: ERIC_5462

Blue Ribbon Cleaners (former)

FROM: Nicole Knutson, Project Manager

SUBJECT: Negotiation Summary

HW689 DC009C-1

DATE: September 10, 2025

This Change Order removes the cost of IDW T&D from Subtask 2. The IDW T&D subcontractor, Erwin Remediation, was unable to locate the IDW container during their site visit. The line items for the poly drum and Erwin Remediation have been eliminated from the Q1 subtask.

Total task amount has decreased from $29,651.03 to $29,361.53. The difference between the revised cost and the original cost is $289.50. 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 has been extended from April 30, 202 to June 29, 202 . Task completion date has been extended from July 17, 202 to August 28, 202 .

LEVEL OF EFFORT / EXPENSE WORKSHEET

SITE :

SUBTASK:

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

Designer 2 S. Ferianc Technical Publications Specia H. Vining Technical Publications Specia L. Houser Update H&S Plan 1

TOTAL LABOR 14

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 1 $120.00

Van or Truck $480.00 Week 0 $0.00

TOTAL VEHICLE $120.00

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 TOTALS

Erwin Remdication Liquid IDW $190.00 Drum 0 $0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) Wells $73.00 2 0 $146.00 EPA Method 8260 (VOHs) GW IDW $73.00 1 0 $73.00 Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $219.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 1 $40.00 Shallow GW Sampling Kit $290.00 Day 1 $290.00 Water Level Indicator $25.00 each 0 $0.00 Poly Drum $75.00 each 0 $0.00

TOTAL EQUIPMENT $330.00

Notes: Proposed VOH Grounwater Samples from two NAM wells MW006 and MW009 for EPA Method 8260 (VOHs Only) Analysis. Composite IDW Sample for VOHs by EPA Method 8260.

Blue Ribbon Cleaners 2-Quarter 1 GW Sampling (VOHs)

9/8/2025

Notification of Property Owner and Tenant for Access (1 hr), Preparation for GW Sampling Field Event and Order VOC Laboratory Kit (1 hr), Preparation of IDW manifest and profile (1 hr)

Travel Preparation, Loading and Mobilization for Groundwater Sampling (1 hr), Travel Round Trip for Groundwater Sampling (2 hrs), Open and Collect Depth to Groundwater Measurements from all wells (2 hrs), Calibrate YSI and Sample two wells MW006 and MW009 for VOHs by EPA Method 8260 (3 hrs). Collection of Composite IDW Sample for VOHs Analysis and Site Restoration IDW Handling and Cleanup (1 hr), Fixed Laboratory VOHs Samples preparation, Chain of custody preparation, Sample Packaging and Delivery to Laboratory (1 hr), 2-Total Page 3 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK:

DATE: April 22, 2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

TITLE STAFF WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer

Engineer/Scientist 5 G. Roberts

Engineer/Scientist 2 K. Howard

Designer 2 S. Ferianc

Technical Publications Specialist H. Vining

Technical Publications Specialist L. Houser

TOTAL LABOR: 41

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00

Van or Truck $120.00 Day 0 $0.00

Van or Truck $480.00 Week 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 TOTALS

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) GW $73.00 0 0 $0.00

EPA Method 8260 (Full List) Well $150.00 0 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

Shallow GW Sampling Kit $290.00 Day 0 $0.00

55 Gallon Drums $100.00 each 0 $0.00

TOTAL EQUIPMENT $0.00

Blue Ribbon Cleaners

Evaluate Data and Trends, Preparation of Q1/Annual Report Recommendations, Preparation of Final Report (2 hrs), Compile Noticing Package and Submittal (1 hr)

Preparation of Shallow and Intermediate GW Flow Maps and GW Analytical Summary Results Maps (4 hrs). Update of GW Elevation, Analytical Summary Tables (3 hrs), Preparation of Groundwater Sampling Report Text and Conclusions (17 hrs), Preparation of Noticing Documents for offsite Contamination: Compilation of Backup Documents for Noticing (1 hr), Research and Compile Information for Surrounding Properties, Preparation and Review of Noticing Maps and Table (2 hrs), Preparation of Initial Notice of Contamination Forms (1 hr), Revisions to initial Package based on review (1 hr).

3-Q1/Annual GW Rpt (VOHs) and Noticing

Q1/Annual Report Drafting and Map Preparation VOCs (4 hrs), Preparation of Noticing Maps, Upload Appraiser Data to Base Map (3 hrs)

Report Document Production and Formatting Tables and Text, Compilation into Adobe Format for Submittal (2 hrs)

3-Q1 & Annual Rpt VOHs Page 4 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK: 4-Q1 Additional PFAS Sampling/Reporting

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

Designer 2 S. Ferianc 1

Technical Publications Specia H. Vining

Technical Publications Specia L. Houser

TOTAL LABOR 14

VEHICLE TYPE RATE UNIT USEAGE TOTALS

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

Van or Truck $480.00 Week 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 TOTALS

$0.00

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

State Laboratory DEP SOP: LC-001-3 (PFAS) GW $0.00 5 1 Fld Regent Blk $0.00 State Laboratory DEP SOP: LC-001-3 (PFAS) IDW $0.00 1 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 Shallow GW Sampling Kit $290.00 Day 0 $0.00 55-Gallon Drum $100.00 each 0 $0.00

TOTAL EQUIPMENT $0.00

Blue Ribbon Cleaners

4/22/2025

Fieldwork Preparation and PFAS Kit Order with FDEP Laboratory (1 hr), Preparation and Incorporation of PFAS Text, Tables, and Figure into Annual Reporting (4 hrs)

Collection an documentation of PFAS Samples from one well being sampled for VOHs, also Purge and collection of PFAS samples from additional wells MW001, MW002, MW003 and MW013 (5 hrs), Collection and documentation PFAS Field Regent Blank and Collection of PFAS Drum purge Water IDW Sample and Document (1 hr), Sample preparation, Chain of custody preparation, PFAS Sample Packaging and Delivery to Shipper (1 hr).

PFAS Report Drafting and Map Preparation

Report Document Production and Formatting PFAS Tables and Text, including PFAS Summary Tables, Compilation into Adobe Format for Submittal, Conversion of Text Files to Excel and Formatting of State Laboratory Files for FDEP (1 hr)

Notes: Previously sampled PFAS Wells included MW002, MW003 and MW013 and all exceeded the PGCTLs. Recommended Expanded Sampling includes addtional wells MW001 (upgradient) and MW006 (downgradient). An IDW and Field Regent Blank will also be collected. The PFAS samples will be submitted to the FDEP Tallahassee Laboratory for PFAS analysis by DEP SOP: LC-001-3.

4-Additional PFAS Sampling Page 5 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK: 5-Q2 GW Sampling (VOHs) and Reporting

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

Designer 2 S. Ferianc Q2 Report Drafting and Map Preparation VOCs (3 hrs) 3 Technical Publications Specia H. Vining Technical Publications Specia L. Houser

TOTAL LABOR 19

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 1 $120.00

Van or Truck $480.00 Week 0 $0.00

TOTAL VEHICLE $120.00

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 TOTALS

Erwin Remdication Liquid IDW $95.00 Bucket 1 $95.00

TOTAL $95.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) Wells $73.00 2 0 $146.00 EPA Method 8260 (VOHs) GW IDW $73.00 0 0 $0.00 Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $146.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 1 $40.00 Shallow GW Sampling Kit $290.00 Day 1 $290.00 Water Level Indicator $25.00 each 0 $0.00 Poly Drum $75.00 each 0 $0.00

TOTAL EQUIPMENT $330.00

Blue Ribbon Cleaners

4/22/2025

Notification of Property Owner and Tenant for Access (1 hr), Preparation for GW Sampling Field Event and Order VOC Laboratory Kit (1 hr), Preparation of IDW manifest and profile (1 hr), Update Analytical Summary Map and PCE Plume Maps (1 hr), Update Analytical DTW, Analytical, and Geochemical Tables (1 hr), Prepare brief GW Analytical Results Statement Letter and Recommendations (2 hrs), Compile backup and build Letter Deliverable with Attachments (1 hr).

Travel Preparation, Loading and Mobilization for Groundwater Sampling (1 hr), Travel Round Trip for Groundwater Sampling (2 hrs), Calibrate YSI and Sample two wells MW006 and MW009 for VOHs by EPA Method 8260 (3 hrs). Fixed Laboratory VOHs Samples preparation, Chain of custody preparation, Sample Packaging and Delivery to Laboratory (1 hr), Site Restoration IDW Handling and Cleanup (1 hr)

Notes: Proposed VOH Grounwater Samples from two NAM wells MW006 and MW009 for EPA Method 8260 (VOHs Only) Analysis.

5-Q2 Sampling VOHs Page 6 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK: 6-Q3 GW Sampling (VOHs) and Reporting

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

Designer 2 S. Ferianc Q3 Report Drafting and Map Preparation VOCs (3 hrs) 3 Technical Publications Specia H. Vining Technical Publications Specia L. Houser

TOTAL LABOR 19

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 1 $120.00

Van or Truck $480.00 Week 0 $0.00

TOTAL VEHICLE $120.00

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 TOTALS

Erwin Remdication Liquid IDW $95.00 Bucket 1 $95.00

TOTAL $95.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) Wells $73.00 2 0 $146.00 EPA Method 8260 (VOHs) GW IDW $73.00 0 0 $0.00 Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $146.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 1 $40.00 Shallow GW Sampling Kit $290.00 Day 1 $290.00 Water Level Indicator $25.00 each 0 $0.00 Poly Drum $75.00 each 0 $0.00

TOTAL EQUIPMENT $330.00

Blue Ribbon Cleaners

4/22/2025

Notification of Property Owner and Tenant for Access (1 hr), Preparation for GW Sampling Field Event and Order VOC Laboratory Kit (1 hr), Preparation of IDW manifest and profile (1 hr), Update Analytical Summary Map and PCE Plume Maps (1 hr), Update Analytical DTW, Analytical, and Geochemical Tables (1 hr), Prepare brief GW Analytical Results Statement Letter and Recommendations (2 hrs), Compile backup and build Letter Deliverable with Attachments (1 hr).

Travel Preparation, Loading and Mobilization for Groundwater Sampling (1 hr), Travel Round Trip for Groundwater Sampling (2 hrs), Calibrate YSI and Sample two wells MW006 and MW009 for VOHs by EPA Method 8260 (3 hrs). Fixed Laboratory VOHs Samples preparation, Chain of custody preparation, Sample Packaging and Delivery to Laboratory (1 hr), Site Restoration IDW Handling and Cleanup (1 hr)

Notes: Proposed VOH Grounwater Samples from two NAM wells MW006 and MW009

6-Q3 Sampling VOHs Page 7 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK: 7-Q4 GW Sampling (VOHs) and Reporting

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

Designer 2 S. Ferianc Q4 Report Drafting and Map Preparation VOCs (3 hrs) 3 Technical Publications Specia H. Vining Technical Publications Specia L. Houser

TOTAL LABOR 19

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00 Van or Truck $120.00 Day 1 $120.00

Van or Truck $480.00 Week 0 $0.00

TOTAL VEHICLE $120.00

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 TOTALS

Erwin Remdication Liquid IDW $95.00 Bucket 1 $95.00

TOTAL $95.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) Wells $73.00 2 0 $146.00 EPA Method 8260 (VOHs) GW IDW $73.00 0 0 $0.00 Sample Shipping (Small cooler) $110.00 0 $0.00

Sample Shipping (large cooler) $150.00 0 $0.00

TOTAL LAB $146.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Day 1 $40.00 Shallow GW Sampling Kit $290.00 Day 1 $290.00 Water Level Indicator $25.00 each 0 $0.00 Poly Drum $75.00 each 0 $0.00

TOTAL EQUIPMENT $330.00

Blue Ribbon Cleaners

4/22/2025

Notification of Property Owner and Tenant for Access (1 hr), Preparation for GW Sampling Field Event and Order VOC Laboratory Kit (1 hr), Preparation of IDW manifest and profile (1 hr), Update Analytical Summary Map and PCE Plume Maps (1 hr), Update Analytical DTW, Analytical, and Geochemical Tables (1 hr), Prepare brief GW Analytical Results Statement Letter and Recommendations (2 hrs), Compile backup and build Letter Deliverable with Attachments (1 hr).

Travel Preparation, Loading and Mobilization for Groundwater Sampling (1 hr), Travel Round Trip for Groundwater Sampling (2 hrs), Calibrate YSI and Sample two wells MW006 and MW009 for VOHs by EPA Method 8260 (3 hrs). Fixed Laboratory VOHs Samples preparation, Chain of custody preparation, Sample Packaging and Delivery to Laboratory (1 hr), Site Restoration IDW Handling and Cleanup (1 hr)

Notes: Proposed VOH Grounwater Samples from two NAM wells MW006 and MW009

7-Q4 Sampling VOHs Page 8 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK:

DATE: April 22, 2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

TITLE STAFF WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer

Engineer/Scientist 5 G. Roberts

Engineer/Scientist 2 K. Howard

Designer 2 S. Ferianc

Technical Publications Specialist H. Vining

Technical Publications Specialist L. Houser

TOTAL LABOR: 37

VEHICLE TYPE RATE UNIT USEAGE TOTALS

Automobile $80.00 Day 0 $0.00

Van or Truck $120.00 Day 0 $0.00

Van or Truck $480.00 Week 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 TOTALS

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) GW $73.00 0 0 $0.00

EPA Method 8260 (Full List) Well $150.00 0 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

Shallow GW Sampling Kit $290.00 Day 0 $0.00

55 Gallon Drums $100.00 each 0 $0.00

TOTAL EQUIPMENT $0.00

Blue Ribbon Cleaners 8-Additional Annual & SRCR Reporting

Preparation of Report SRCO Recommendations, Preparation and Compilation of Final Report (2 hrs)

In the event of favorable groundwater analytical results after sampling in any quarter and achieving NFA conditions, the Quarterly Report will be converted to a full Annual Report Including development of Shallow and Intermediate GW Flow Maps (2 hrs).

Incorporation of updated and reformated historical soil analytical Maps and Tables (3 hrs), Preparation of Full Annual Groundwater Sampling Report Text with Conclusions (24 hrs), The Report Recommendations will be developed as Site Rehabilitation Completion Report with No Furter Action Proposal, and include the additional documentation required in Paragraph 62-780.750(4)(f) FAC

Preparation GW Flow Maps (2 hrs), Update/Create Soil Maps for SRCR Report (2 hrs)

Report Document Production and Formatting Tables and Text, Compilation into Adobe Format for Submittal (2 hrs)

8-Additional Reporting Page 9 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

SUBTASK:

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 Designer 2 S. Ferianc Technical Publications Specia H. Vining Technical Publications Specia L. Houser

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

Van or Truck $480.00 Week 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 ACTUAL TOTALS

Erwin Remdication Liquid IDW $195.00 Drum -1 $190.00 ($195.00)

TOTAL ($195.00)

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC TOTALS

EPA Method 8260 (VOHs) Wells $73.00 0 0 $0.00 EPA Method 8260 (VOHs) GW IDW $73.00 0 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 Shallow GW Sampling Kit $290.00 Day 0 $0.00 Water Level Indicator $25.00 each 0 $0.00 Poly Drum $75.00 each -1 ($75.00)

TOTAL EQUIPMENT ($75.00)

Blue Ribbon Cleaners 2-Quarter 1 GW Sampling (VOHs)

9/8/2025

2-Delta Page 12 of 14 HW689 DC009C TACO #1 est (Blue Ribbon)

Proposed Scope of Work Blue Ribbon Cleaners (former) 160 South U.S. Highway 17-92 Longwood, Seminole County, Florida 32750 Groundwater Monitoring Proposal Task Assignment DC009C TACO #1 ERIC_5462 (Former FAC ID No. 519502401) APTIM Environmental & Infrastructure, LLC (APTIM) 9/8/25

The following is the proposed scope of work for Task Assignment Change Order (TACO) DC009C TACO

#1 to reconcile Subtask 2 of the Task Assignment (TA) and adjust the remaining deliverable dates.

Subtask - 1: Project Management This task includes project management activities associated with the completion of the following Subtasks, as calculated in accordance with Contract HW689.

Subtask - 2: Quarter 1 Monitoring Well Sampling – VOHs The costs for transportation and disposal (T&D) of the investigative derived waste (IDW) was removed from the subtask, as the T&D provider found that the IDW was not onsite during the site visit.

Additionally, based on the volume, a poly drum was substituted for two 5-gallon buckets. Therefore, the cost of the poly drum has also been removed from the Subtask.

Subtask - 3: Quarter 1/Annual Groundwater Reporting (VOHs) and Noticing Documents Preparation: No Reconciliation Required Subtask - 4: Quarter 1 Additional PFAS Sampling and Reporting: No Reconciliation Required Subtask - 5: Quarter 2 Monitoring Well Sampling (VOHs) and Reporting: No Changes Subtask - 6: Quarter 3 Monitoring Well Sampling (VOHs) and Reporting: No Changes Subtask - 7: Quarter 4 Monitoring Well Sampling (VOHs) and Reporting: No Changes Subtask - 8: Additional Annual and SRCR Reporting: No Changes

Due to the initial scheduling issues, APTIM requests a 60-day extension for the remaining Quarterly schedule:

Description Due Date

Q1 and PFAS GW Sampling and Reporting/Noticing (Subtasks 2, 3, 4) 8/29/25

Q2 PARM Sampling and Reporting (Subtask 5) 11/28/25

Q3 PARM Sampling and Reporting (Subtask 6) 2/27/26

Q4 PARM Sampling and Reporting (Subtask 7) 5/29/26

Annual/SRCR Reporting (Subtask 8) 6/29/26

Task expiration date 7/29/26

APTIM proposes to perform this scope of work in accordance with the terms and conditions of the Contract between the Florida Department of Environmental Protection and APTIM dated December 21, 2021 (DEP Contract No. HW689). APTIM will begin the proposed scope of work upon issuance of the Task Assignment Notification.

408 Ditmar Street

Pensacola, FL 32503

ErwinRemediation@Gmail.com - P.O. Box 884 Gulf Breeze, FL 32562

(850) 292-6511

To: Mr. Gregg Roberts Aptim 725 US Highway 301 South Tampa, FL 33619

April 18, 2025

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

160 South US Highway 17-92 - Longwood, Florida 32750

Mr. Roberts:

The price for transportation and disposal (T&D) of one (1) 55-gallon drum and one (1) 5-gallon bucket containing non-hazardous PFAS/PFOS impacted water from your site located in Longwood, FL will be the following:

Description Rate Unit

T&D - Non-Haz PFOS/PFAS Impacted Water $ 195.00 Per Drum

T&D - Non-Haz PFOS/PFAS Impacted Water $ 95.00 Per Bucket

All drums must be staged in a central location. Please ensure that all drum lids are properly secured and that drums are on a level surface like the surrounding area (i.e., not on a pallet, etc.). A single False Mobilization fee will apply if our driver is not able to locate a drum on site or if we are unable to access the property due to a locked gate, etc.

This quote is valid for 90 days.

Respectfully, Robert Donado Erwin Remediation, Inc.

Email: Robert@erwinremediation.com Phone: 850-466-2358

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

DC009C Completion July 17, 2026

This Task authorizes APTIM to perform four quarters of groundwater monitoring for

VOHs, annual monitoring for PFAS, prepare an Annual Groundwater Monitoring Report, and prepare a Site Rehabilitation Completion Report.

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

Contractor Eric Kramer Contractor 407 287 3216

ERIC_5462

160 South U.S. Highway 17-92, Longwood, Seminole County

Blue Ribbon Cleaners (former)

Contractor Contractor

$ 29,651.03

$ 29,651.03

Scope of Work

APTIM Environmental & Infrastructure, LLC Contractor

Kramer, Eric K Digitally signed by Kramer, Eric K Date: 2025.05.20 17:27:37 -04'00'

Mubeen Darji

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

Date: 2025.05.20 10:46:50 -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

Subtasks 2-4: Q1 and PFAS GW Sampling and Reporting/Noticing 06/30/2025

Subtask 5: Q2 PARM Sampling Report 09/30/2025

Subtask 6: Q3 PARM Sampling Report 01/07/2026

Subtask 7: Q4 PARM Sampling Report 03/31/2026

Subtask 8 & 1: SRCR Report & PM 04/30/2026

Upon DEP Approval of Subtasks 2-4: Q1 and PFAS GW Sampling and Reporting/Noticing $ 10,884.58

Upon DEP Approval of Subtask 5: Q2 PARM Sampling Report $ 3,202.62

Upon DEP Approval of Subtask 6: Q3 PARM Sampling Report $ 3,202.62

Upon DEP Approval of Subtask 7: Q4 PARM Sampling Report $ 3,202.62

Upon DEP Approval of Subtask 8 & 1: SRCR Report & PM $ 9,158.59

$ 29,651.03

HW689

DC009C