CN-370000-HW687-DC023E.pdf

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.

HW687

DC023E Completion November 21, 2025

This TA authorizes Terracon to conduct MAGS Testing at the Dadeland Cleaners site.

Gabriel Sostre 850-245-8749 Contractor Terracon Consultants, Inc. Contractor

Contractor Donna Cline Contractor 904-479-7415

ERIC_4461

8765 S Dixie Highway, Village of Pinecrest, Miami-Dade County

Dadeland Cleaners

Contractor Contractor

✔ $ 19,419.12

$ 19,419.12

Scope of Work

Terracon Consultants, Inc.

Contractor Donna Cline

Senior Associate / Remediation Engineer

6/16/2025

Digitally signed by Cline, Donna L DN: cn=Cline, Donna L, ou=General Users, email=Donna.Cline@terracon.com Date: 2025.06.16 09:58:42 -04'00'

Cline, Donna L

Mubeen Darji

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

Date: 2025.06.16 08:57:02 -04'00'

N/A

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

BWC TAFORM 01/18

HW687

DC023E

Subtask 3: IDW management and disposal.

Subtasks 1 & 4: Project Management; Letter Report detailing MAGS results and findings.

Subtask 2: MAGS well re-installation and testing including a step test.

08/15/2025

09/19/2025

10/17/2025

Subtask 2: FDEP approval of MAGS testing results including influence testing and step testing. Additionally, Terracon is to provide laboratory results of soil gas analysis and field notes for DEP approval.

Subtask 3: FDEP approval of IDW Manifests.

Subtasks 1 & 4: FDEP approval of letter report with updated charts, graphs, and tables that detail results and findings from MAGS testing.

$ 13,876.02

$ 1,209.64

$ 4,333.46

$ 19,419.12

FLORIDA DEPARTMENT OF

Environmental Protection

Bob Martinez Center 2600 Blair Stone Road

Tallahassee, FL 32399-2400

Ron DeSantis Governor

Secretary

Memorandum

TO:

FROM:

Negotiation File

ERIC

, Project Manager

SUBJECT: Negotiation Summary

DATE:

Task Assignment (HW687)

FDEP COST ESTIMATE

Contractor: Terracon

Date: 6/13/2025 Task #: DC SubTask 1 Project Management SubTask 6

Site: Dadeland Cleaners, ERIC_4461 SubTask 2 Soil Sampling, MAGS Survey SubTask 7 Activity/Phase: MAGS Soil Investigation SubTask 3 IDW Management SubTask 8

Project Manager: Gabriel Sostre SubTask 4 Report Preparation SubTask 9 SubTask 5 SubTask 10

Totals 1 2 3 4 5 6 7 8 9 10 Labor Rate Category

$54.09 Project Manager Shawn Ouellette 9.19 9.19 $36.06 CADD Specialist Chelsea Fugage 3.00 0.00 0.00 3.00 0 0 0 0 0 0 $32.00 Project Geologist 0.00 0.00 0.00 0.00 0 0 0 0 0 0 $46.44 Senior Scientist Mui Michael 12.00 4.00 0.00 8.00 0 0 0 0 0 0 $54.09 Senior Geologist Shawn Ouellette 31.25 24.25 1.00 6.00 0 0 0 0 0 0 $72.79 Senior Engineer Donna Cline 2.00 0.00 0.00 2.00 0 0 0 0 0 0 $37.00 Environmental Technicia Rob Siegel 35.75 31.25 4.50 0.00 0 0 0 0 0 0

$0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0 $0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0 $0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0 $0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0 $0.00 0.00 0.00 0.00 0.00 0 0 0 0 0 0

Total Hours 93.19 9.19 59.50 5.50 19.00 0 0 0 0 0 0

Direct Labor $4,321.23 $497.13 $2,653.69 $220.59 $949.82 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Overhead 116.00% $5,012.62 $576.67 $3,078.28 $255.88 $1,101.79 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Gen & Admin 0.00% $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Fringe 56.263% $2,431.26 $279.70 $1,493.05 $124.11 $534.40 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Labor $11,765.11 $1,353.50 $7,225.02 $600.58 $2,586.01 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Travel Vehicle Rental $600.00 480.00$ 120.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Mileage Costs $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Air Fare $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Per diem + Hotel $247.00 247.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $847.00 $727.00 $120.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor (Services Procurement) Drilling (Conventional) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Drilling (Non-conventional) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Mobile Laboratory $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Surveying $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 IDW - Erwin Remediation $390.00 $0.00 390.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Utilities $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

JAEE $2,075.00 2,075.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

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

Subcontractor Subtotal $2,465.00 $2,075.00 $390.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Handling Fee $246.50 $207.50 $39.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $2,711.50 $2,282.50 $429.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $1,245.00 1,245.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Fast Turnaround Charges $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping $220.00 220.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Laboratory $1,465.00 1,465.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

REV: 02/03 CEF TERRACON Page 1

FDEP COST ESTIMATEContractor: Terracon Date: 6/13/2025

Task #: DC SubTask 1 Project Management SubTask 6 Site: Dadeland Cleaners, ERIC_4461 SubTask 2 Soil Sampling, MAGS Survey SubTask 7

Activity/Phase: MAGS Soil Investigation SubTask 3 IDW Management SubTask 8 Project Manager: Gabriel Sostre SubTask 4 Report Preparation SubTask 9

SubTask 5 SubTask 10

Totals 1 2 3 4 5 6 7 8 9 10 Field Expenses

Personal Protection $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Expendables $93.00 93.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Drilling related) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $1,186.00 1,186.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (IDW related) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Other) $175.00 175.00$ $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Field Expenses $1,454.00 $1,454.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subtotal $18,242.61 $1,353.50 $13,153.52 $1,149.58 $2,586.01 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Completion Fee $1,176.51 $135.35 $722.50 $60.06 $258.60 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Total Estimated Cost $19,419.12 $1,488.85 $13,876.02 $1,209.64 $2,844.61 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

REV: 02/03 CEF TERRACON Page 2

LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE : Dadeland Cleaners ERIC_4461 SUBTASK 2: Soil Sampling, MAGS Survey

PROPOSAL NO. PHD257035

DATE: 6/13/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Field Task Planning Senior Geologist SO 4.00 Senior Staff Scientist SO 1.00 Senior Scientist/Engineer MM 0.00 Senior Geologist SO 8.00

Senior Scientist/Engineer MM 1.00 Oversee MAGS Well Installation / Locate Existing MAGS locations (covered up with an asphalt/concrete surface) Scope: Deliver MAGS Trailer, Run Mags Test on 5 existing MAGS wells Must core previous MAGS locations with concrete corer, install 1 replacement MAGS at MAGS-1 and screen 1-9 ft bgs Time Duration: 1 day Install 1 replacement MAGSs and Access former MAGS locations Environmental Tech RS Load/unload equipment (1 hour/day) 1.00 Environmental Tech RS 10.00

Environmental Tech RS Containerize IDW and collect IDW sample(0.5 hours/day) 1.00 Environmental Tech RS Finalize field notes at end of day 0.50 MAGS Test Time Duration: 2 Days Day 1 Environmental Tech RS Deliver and set up MAGS System 8.00 Day 2 Senior Geologist SO Collect vaccum/pressure and OVA screening measurements, collect samples for lab analysis 6.25 Environmental Tech RS Maintain system operation of the MAGS system, reduce vacuum / flows as directed by Engineer / 6.25

Maintain hoses / decon as approriate between MAGS wells (5 MAGS locations @ 60 mins per locations) 15 mins @ 5 locations to move/set up between MAGS (max of 2 hrs)

Senior Geologist SO Finalize field notes at end of day (1 hour/day) 1.00 Senior Scientist/Engineer MM Interpret field data, perform calculations, and provide update to FDEP 3.00 Mobilization / Demobilizations Senior Geologist SO 1 event (from West Palm Beach, 4 hour/day) 4.00 Environmental Tech RS 4.50

Personnel: SO MM RS Hours: 24.25 4.00 31.25 TOTAL LABOR 59.50

VEHICLE TYPE RATE UNIT USEAGE

Truck (Senior Geologist) 120 day 1 120.00$ Truck (Field Technician) 120 days 3 360.00$ Truck (Senior Scientist/Engineer) 120 days -$

TOTAL VEHICLE 480.00$

PER DIEM STAFF RATE UNIT USEAGE

Rob Siegel $175.00 Day 1 175.00$ Meals $36.00 Day 2 72.00$

TOTAL PER DIEM 247.00$

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE

JAEE Install MAGS well and core Existing locations 2,075.00$ each 1 2,075.00$

TOTAL SUBCONTRACTOR 2,075.00$

LABORATORY COSTS

PARAMETER RATE # SAMPLES

Halocarbons (IDW) EPA 8260 73.00$ 1 73.00$ VOCs (soil-prep) 5035 prep 7.00$ 1 7.00$ SPLP Bottle Extraction Method 1312 -$ 0 VOCs Soil Vapor- Full ScaTO-15 200.00$ 5 1,000.00$

Summa Canister 33.00$ 5 165.00$ Sample Shipping 110.00$ 2 220.00$

TOTAL LAB 1,465.00$

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables Expendables 40.00$ day 2 80.00$ Ice (Sample Preservation) 6.50$ each 2 13.00$

Drilling related Analytical related Encore Sampler 16.00$ each 0 (SPLP samples - ho -$

Terra Core Sampler 11.00$ each 1 (VOH sample) 11.00$ Soil Assessment Kit Concrete Reopen Patches 175.00$ day 1 175.00$ MAGS Investigation Kit 500.00$ day 2 1,000.00$

IDW related Other Global Positioning System 175.00$ day 1 175.00$

TOTAL EQUIPMENT 1,454.00$

Request laboratory sample kit (soil gas, MAGS)

1 event (from PSL, 4.5 hours/event)

Pre Task Planning, develop MAGS well installation and MAGS TEST SOW Prepare Health and Safety Plan Evaluate technical approach to soil / MAGS Investigation Meet with owner and conduct pre-drilling site walk with property owner, current tenants and drilling contractor. Designate IDW staging areas, decon pad location, and MAGS system staging area (work to be performed at a CVS drive through)

Direct work, daily safety debrief, record lithological descriptions, oversee MAGS well install and access to existing MAGS well locations (1 day)

SUBTASK 3: IDW Disposal

PROPOSAL NO. PHD257035

DATE: 6/9/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Coordinate IDW T&D

Senior Scientist/Geologist SO 1.00 Env. Technician RS 4.50

Personnel: SO RS CF Hours: 1.00 4.50 0.00 TOTAL LABOR 5.5

VEHICLE TYPE RATE UNIT USEAGE

Pickup (IDW site visit) 120 day 1 120.00$

TOTAL VEHICLE 120.00$

PER DIEM STAFF RATE UNIT USEAGE

TOTAL PER DIEM -$

SUBCONTRACTOR COSTS

NAME PURPOSE COST UNIT USEAGE

Erwin Remediation IDW Disposal (soil) 390.00$ each 1 390.00$ Handling Fee 39.00$

TOTAL SUBCONTRACTOR 429.00$

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

TOTAL LAB -$

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

TOTAL EQUIPMENT -$

Prepare waste characterization/Generator Profile Coordinate IDW T&D: Mobilize to site, meet transporter to unlock secure area for pickup

SUBTASK 4: Report Preparation

PROPOSAL NO. PHD257035

DATE: 6/13/2025

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Report Deliverable Senior Geologist SO Prepare report tables, trend graphs and draft maps 5.00 Senior Scientist/Engineer MM Prepare report, radius of influence presentations, calculate intrinsic permeability 6.00 Senior Geologist SO QA/QC field and laboratory data 1.00 Senior Scientist/Engineer MM Conclusions/Recommendations 2.00 CADD Specialist CF Prepare base figures and Exhibits 3.00 Senior Engineer DC QA QC 2.00

Personnel: SO MM CF DC Hours: 6.00 8.00 3.00 2.00 TOTAL LABOR 19.00

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 UNIT USEAGE

TOTAL $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

TOTAL LAB $0.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

TOTAL EQUIPMENT $0.00

645 NW Enterprise Drive, Suite 107 Port St Lucie, FL 34986

P (772) 343-9787 F (772) 343-9404

Terracon.com

1 1

May 29, 2025

Florida Department of Environmental Protection Waste Cleanup Program Waste Management Division 2600 Blair Stone Road Tallahassee, Florida 32399-2400

Attn: Mr. Gabriel Sostre, Environmental Consultant E: Gabriel.sostre@FloridaDep.gov W: 850-245-8969 M: 727-686-6502

Re: Proposal for MAGS Event Dadeland Cleaners – Former (CVS Currently) 8765 S Dixie Highway Village of Pinecrest, Miami-Dade County, Florida 33143

ERIC_4461

Task Assignment HW687 DC Terracon Proposal No. PHD257035

Dear Mr. Sostre:

Terracon Consultants, Inc. (Terracon) appreciates the opportunity to submit this proposal to the Florida Department of Environmental Program (FDEP) Waste Cleanup Program (WCP) to conduct a Modified Active Gas Survey (MAGS) Event for Dadeland Cleaners (ERIC_4461) located at 8765 S Dixie Highway, Miami- Dade County, Florida. The objective of this MAGS sampling event is to verify the MAGS soil gas PCE exceedances reported in the 2021 SAR, prepared by Tetra Tech. The MAGS resampling event will help understand if an Interim Source Removal System (ISR) for a Soil Vapor Extraction (SVE) system is necessary, or verify the site meets the conditions for No Further Action (NFA). Terracon will also submit a proposal for groundwater sampling under separate cover as the 2022 groundwater sampling results were reported below regulatory standards.

Scope of Services

Subtask 1. Project Management Subtask 2. Modified Active Gas Survey (MAGS) Subtask 3. IDW Management Subtask 4. Preparation of Letter Report

See attached LOE for details

Schedule Submit a Letter Report of on-site activities within 20 business days following receipt of laboratory results.

Compensation See attached CEF for details.

Proposal for MAGS Testing Dadeland Cleaners, ERIC_4461 Village of Pinecrest, FL May 29, 2025 Terracon Proposal No. PHD257035

SCOPE OF SERVICES

Subtask 1 – Project Management

Shawn Ouellette P.G. will serve as the Project Manager during the field investigation. Donna Cline P.E.

will be involved throughout the project, serving as Authorized Project Reviewer.

Subtask 2 –Modified Active Gas Survey

Pre-Task Planning will be performed to prepare for field investigations. Terracon will prepare a site-specific health and safety plan.

Modified Active Gas Survey (MAGS)

MAGS will be conducted by Terracon using a regenerative blower connected to a portable power generator. The purpose of conducting the MAGS investigation is to determine whether soil impacts still exist from the former Dadeland Cleaners that are less likely to be detected using traditional (discrete) soil sampling techniques and identified during the 2021 SAR. MAGS involves the extraction and analysis of air from a well screened through the unsaturated soil column and collecting vacuum and flow measurements from the extraction well and adjacent wells.

Terracon is proposing to re-install MAGS-01 to a depth of nine feet below ground surface (bgs). The MAGS well will be constructed with an 8-foot section of Schedule 40 PVC, 2-inch diameter, 0.020 slotted screen flush threaded to a 1-foot section of PVC riser. The MAGS well will be filter packed with ¼ inch pea gravel to 1 foot bls followed by a thin layer of fine sand and a hydrated bentonite layer. The MAGS well will be completed with a grout seal to about 4 inches bls. A 6-20 filter sleeve will be placed around the well screen to filter fine materials from entering the well screen. Additionally, MAGS-07, MAGS -08, MAGS-09, and MAGS-10 will need to be cored out and utilized in this MAGS sampling event.

Terracon has contracted with JAEE Environmental Solutions to perform the installation of the MAGS Well and a certified laboratory for the soil gas analysis. At the terminus of the MAGS event, the MAGS wells will be patched with a layer of fast setting concrete for the ISR implementation if deemed warranted.

Modified Active Gas Survey (MAGS) Testing Terracon will connect the vacuum extraction system to each MAGS point individually and soil gas will be extracted from each point for a maximum of 60 minutes. Applied vacuum, flow rate and photo ionization detector (PID) readings will be continuously monitored and periodically recorded during the extraction period. Vacuum influence measurements will also be periodically collected from surrounding MAGS points to evaluate the radius of influence of each extraction point. A step test will be conducted at the first test location to determine an appropriate default vacuum to apply to the rest of the MAGS points.

A soil gas sample will be collected from each MAGS point at the end of the extraction period for analyses by the Laboratory. A summary of MAGS operational data will be provided in a brief letter report.

Subtask 3 –Investigation Derived Waste

Decontamination activities will take place at a designated staging and laydown area. The soil cuttings and water IDW will be containerized in a 55-gallon drum and staged on-Site at a designated location.

It is estimated that 2 drums of IDW will be generated in Subtask 2 and the transportation and disposal costs for the drums are included under Subtask 3.

Proposal for MAGS Testing Dadeland Cleaners, ERIC_4461 Village of Pinecrest, FL May 29, 2025 Terracon Proposal No. PHD257035

Terracon recommends subcontracting Erwin Remediation, Inc. (Erwin) for IDW transportation and disposal. Terracon will provide oversight of the IDW pickup, and sign waste manifests as an agent of

FDEP.

Subtask 4 –Letter Report

Terracon will prepare a Letter Report that will detail and summarize the MAGS activities, field observations, and results of the soil gas analysis and will include data tables and exhibits of the soil gas concentrations. Conclusions and recommendations will include a summary of results and recommendations for future sampling or remedial activities, if needed.

SCHEDULE

It is estimated that the sampling activities may be completed within a 15-day period. Daily updates of activities will be uploaded within 24 hours on the Terracon website Compass, to allow FDEP access to the site activities, and soil gas analytical and investigative results. Terracon anticipates the deliverable of MAGS investigation activities within 20 business days of receipt of analytical results.

CLOSING REMARKS

Terracon services will be conducted in accordance with the terms and conditions, contained within DEP Waste Cleanup Program (WCP) Contract No. HW687, executed January 5, 2022. It is understood that a Task Assignment will be issued to authorize us to perform this work.

We appreciate the opportunity to provide this proposal and look forward to working with you on this project. If you should have any questions or comments regarding this proposal, please contact either of the undersigned at 561-494-7052.

Sincerely, Terracon Consultants, Inc.

Shawn Ouellette, P.G. Donna Cline, P.E.

Sr. Geologist Senior Remediation Engineer

Attachments: Cost Spreadsheet Level of Effort

Shawn Ouellette, P.G on behalf of

ITE

M

DESCRIPTION UNIT OF

MEASURE

ESTIMATE

D

UNIT

PRICE

EXTENDED

PRICE

ITEM

NO.

DESCRIPTION UNIT OF

MEASURE

ESTIMATED

QUANTITY

UNIT

PRICE

EXTENDED

PRICE

ITEM

NO.

DESCRIPTIO

N

UNIT OF

MEASURE

ESTIMATED

QUANTITY

UNIT

PRICE

EXTENDE

D PRICE

1 Daily Rate EA 1 $600.00 $800.00 1 Daily Rate EA 1 $1,550.00 $1,550.00 1 Daily Rate EA 1 $2,500.00 $2,500.00

2 Well Material and Installation EA 1 $1,200.00 $1,200.00 2 Well Material and Installation EA 1 $500.00 $500.00 2 Well material and EA 1 $270.00 $270.00

3 IDW Drum EA 1 $75.00 $75.00 3 IDW Drum EA 1 $120.00 $120.00 3 IDW Drum EA 1 $80.00 $80.00

TOTAL $2,075.00 TOTAL $2,170.00 TOTAL $2,850.00

Low Bid: JAEE

Drilling Subcontractor

THREE BID SUMMARY EVALUATION

JAEE Earth Tech Drilling Earth Nurse Drilling

Please see specific Vendor bids for details and equipment

Estimate

Date 05/22/25

Estimate No.

Name/Address Terracon Port St Lucie 645 NW Enterprise Drive Suite 107 Port St Lucie, FL 34986

Earth Nurse Environmental 4811 NW 18th Avenue Pompano Beach, FL 33064

Item Description Quantity Cost Total Day Rate Track Rig

Geoprobe Soil and Ground Water 1,550.00 1,550.00

2" Well 2" monitoring well with HSA 10ft 500.00 500.00 55 Gallon Drum DOT approved 55 gallon steel drum 120.00 120.00

$2,170.00TotalSignature:

Project

8965 S Dixie Highway Miami FL 33143

$2,170.00

ITE

M

DESCRIPTION UNIT OF

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ITEM

NO.

DESCRIPTION UNIT OF

MEASURE

ESTIMATED

QUANTITY

UNIT

PRICE

EXTENDED

PRICE

ITEM

NO.

DESCRIPTION UNIT OF

MEASURE

ESTIMATED

QUANTITY

UNIT

PRICE

EXTENDE

D PRICE

1 IDW Disposal EA 2 $1.00 $207.00 1 IDW Pickup, Manifest EA 2 $195.00 $390.00 1 IDW Disposal EA 2 $125.00 $250.00

2 Fees/Manifest EA 1 $254.00 $254.00 2 Profiling Fee (PFAS) EA 0 $350.00 $0.00 2 Transportation EA 1 $300.00 $300.00

3 Transportation EA 1 $250.00 $250.00 3 Stop Fee EA 1 $125.00 $125.00

4 Fuel Surcharge EA 2 $15.50 $31.00

TOTAL $711.00 TOTAL $390.00 TOTAL $706.00

Low Bid: Erwin Remediation

IDW

THREE BID SUMMARY EVALUATION

Clean Earth Erwin Remediation Common Ground Environmental

Please see specific Vendor bids for details and equipment

408 Ditmar Street Pensacola, FL 32503

To: Ms. Jessica Endicott Terracon 645 NW Enterprise Drive Suite 107 Port Saint Lucie, FL 34986

September 11, 2024

Re: Non-Hazardous Drum Disposal of PFOS/PFAS Impacted Materials - Vero Beach, FL

Ms. Endicott:

The price for the transportation and disposal (T&D) of one (1) 55-gallon drum of non-hazardous PFAS/PFOS water from your site in Vero Beach, FL is $195.00 per drum.

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.

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

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

Common Ground Environmental Inc.

(Common Sense Approach to Environmental Issues)

P.O. Box 1044, Lakeland, Florida 33802 Phone: (863) 647-3888

May 8, 2025

Jessica Endicott Terracon 645 NW Enterprise Drive Suite 107 Port Saint Lucie, FL 34986

RE: One (1) Drum of Non-Hazardous Waste for Disposal

Dear Jessica, Thank you for the opportunity to present Common Ground Environmental Inc. (CGE) to you.

CGE is committed to providing the best service in the waste management industry at competitive pricing. When you choose CGE, you choose to have a partner with the experience and the capabilities to handle all your environmental needs, from proper paperwork to site audits to remediation and analytical testing. CGE will be on site at time of pick up to correctly complete all paperwork and to tackle any unexpected problems. CGE makes it easy for you by handling all profiles, paperwork, and scheduling; all you do is sign the shipping documents!

Common Ground Environmental, Inc. is pleased to submit this quote for the following services.

Waste Stream Qty. Price per Unit Total Disposal Only of Non-Hazardous Non-Regulated Material in 55 Gallon Drums

1 $125.00.00 per 55 Gallon Drum

$125.00

Transportation Only of Drums 1 0B$60.00 per Drum Minimum $300

$300.00

Stop Charge 1 $125.00 per Trip $125.00 Fuel Surcharge as of 5/8/25 1 $15.50 per Drum $15.50 Estimated Total $565.50

NOTES:

The above pricing will be valid for 10 days from date of this quote. _____ Int.

The first hour of loading is included in the above price. For each additional hour, customer will be billed $225.00 per hour. _____ Int.

The above quote is only an estimated total. Final invoice can be higher, or it can be lower due to number of drums for disposal, number of surcharges and/or waste conditions. _____ Int.

Quote is based on final profile approval from waste facility. _____ Int.

A monthly fee of 1 ½ % interest will be charged on the balance of every past due invoice that is over 30 days past due and will incur every 30 days until invoice and late fees are paid in full. _____ Int.

Our terms are 30 Days Net. _____ Int.

Terracon Page 2

The pricing above includes transportation and disposal to an EPA permitted facility. Pricing is based on approved waste profiles and non-conforming waste will be assessed surcharges that are billed separately. A $125.00 stop fee will be passed on to the customer. Please note, due to the high cost of Diesel, the fuel surcharge rate will now be managed separately on a month-to-month basis.

Thank you for considering Common Ground Environmental, Inc. as your waste management provider. Please review the above pricing and if it meets with your approval, please confirm your order by signing and returning this quote to my attention. Do not hesitate to call me at (863) 860- 0827 or (863) 647-3888 with questions or concerns.

Sincerely, Michael Propst Mike Propst Common Ground Environmental, Inc.

Acceptance of Proposal

The above prices, specifications and conditions are satisfactory to generator/client and are hereby accepted. Common Ground Environmental, Inc. is hereby granted to do the work as specified.

Payment terms are net 30 days unless specified otherwise. A 1.5% per month finance charge will be applied on all past due invoices. The generator/client will be responsible for all cost, expenses and reasonable counsel fees incurred by or on behalf of Common Ground Environmental, Inc. as a result of failure to remit payment as specified above.

Date of Acceptance _______________________________________________________

Signature: __________________________________________Title: ________________

Printed Name: ___________________________________________________________

CONFIDENTIAL

CE (Quote) – Addendum_v17_01.13.2023_unlocked

The terms and prices contained herein shall be treated as confidential property and may not be disclosed to others before, during, or subsequent to the terms of this Agreement, except as required by law or as necessary to perform Services (and then only on a confidential basis satisfactory to both parties.

QUOTE - ADDENDUM

September 6, 2024

Mr. Eric Clementelli Terracon Consultants Inc 10840 S Ridgeview Rd Olathe, KS 65898

Thank you for allowing Clean Earth Environmental Solutions, Inc. by and through any of its subsidiaries or affiliates ("Clean Earth") to service your waste management needs. This addendum is to add additional services or pricing to your existing agreement with Clean Earth either at your request, or due to items or services performed that are not in your existing pricing schedule with us. Please see the below pricing schedule that will be added to your existing agreement as referenced below.

Quote provides example transportation rates from the Orlando Service Center. Actual charges will vary based on the distance from nearest Clean Earth service location to site. Non-Hazardous solids and liquids pricing assumes no contamination high halogen contamination from dry cleaning solvents are present.

The terms and prices contained herein shall be treated as confidential property and may not be disclosed to others before, during, or subsequent to the terms of this Agreement, except as required by law or as necessary to perform Services (and then only on a confidential basis satisfactory to both parties.

PPricingg Details::

Assumptionss andd Conditions:

1. The disposal pricing as listed above is based on the information provided and will be confirmed following receipt of a completed waste profile. All pricing is pending profile approval and/or waste sample analysis. Clean Earth reserves the right to adjust the fees or rates herein to account for operational changes implemented to comply with changes in law, rules, regulations, permits, licenses or approvals, or to cover increases in the cost of fuel, insurance, disposal, record keeping or to otherwise address cost escalation. If Customer rejects the adjusted fees or rates, Clean Earth shall have the right to terminate the Agreement or refuse to provide any services to Customer for which Customer rejected the adjusted Rates.

2. Unless otherwise stated in the Agreement, all invoices are subject to applicable Federal, State, and local taxes & fees as well as an Energy & Insurance recovery charge tied to the National monthly average price for diesel fuel as published by the Department of Energy https://www.cleanearthinc.com/energy-and-insurance-fees/.

Faci l i ty IItem Descr iption UUOM Price QQTY Nett Pr ice MMinimums

Orlando STAB01 Non regulated sludges with free liquids , bulkable , for solidification to subtitle D landfill, DR55 $137.00 1 $137.00

Orlando STAB02 Solids/Sludges/Liquids (neutral pH) with RCRA metals, for stabilization to subtitle C/D landfill

DR55 $207.00 1 $207.00

Orlando LF72L PFAS Impacted Water Wastes DR55 $446.00 1 $446.00 #N/A

Orlando INC71 PFAS Impacted Solid Material DR55 $1,121.00 1 $1,121.00 #N/A

$1,911.00

Faci l i ty IItem Descr iption UUOM Price QQTY Nett Pr ice MMinimums

Orlando TRSTOP1-3 30-55 GL drums, LTL Trans., Zone 1 (0-50 mi, RT) Each $34.00 1 $34.00 $210 Minimum / $499 Maximum per Pickup

Orlando TRSTOP2-3 30-55 GL drums, LTL Trans., Zone 2 (51-100mi, RT) Each $40.00 1 $40.00 $250 Minimum / $599 Maximum per Pickup

Orlando TRSTOP3-3 30-55 GL drums, LTL Trans., Zone 3 (101-150 mi, RT) Each $48.00 1 $48.00 $300 Minimum / $749 Maximum per Pickup

Orlando TRSTOP4-3 30-55 GL drums, LTL Trans., Zone 4 (151-200 mi, RT) Each $54.00 1 $54.00 $350 Minimum / $949 Maximum per Pickup

Orlando TRSTOP5-3 30-55 GL drums, LTL Trans., Zone 5 (>200 mi, RT) Each $59.00 1 $59.00 $400 Minimum / CBC Maximum per Pickup

$235.00

Faci l i ty IItem Descr iption UUOM Price QQTY Nett Pr ice MMinimums

Orlando ADMEMANFST Manifest Administration Fee Each $254.00 1 $254.00

$254.00

$432.00

$2,832.00Estimatedd Total :

E&II Estimate :

Equipmentt Subtotal :

Disposall Charges :

Transportationn Charges :

Equipment/Adminn Charges :

Transportationn Subtotal :

Disposall Subtotal :

The terms and prices contained herein shall be treated as confidential property and may not be disclosed to others before, during, or subsequent to the terms of this Agreement, except as required by law or as necessary to perform Services (and then only on a confidential basis satisfactory to both parties.

3. For a complete list of process code specifications, visit:

https://www.cleanearthinc.com/sites/default/files/Process-Specifications.pdf

4. This proposal must be signed within 30 days of receipt; otherwise a new quote will be reissued.

The terms and conditions from the Master Service (“Agreement”) with an effective date of 02/22/2023 between Stericycle Environmental Solutions, Inc, (now known as Clean Earth Environmental Solutions, Inc.), and Terracon Consultants Inc apply to this quote addendum.

Between: Clean Earth Environmental Solutions, Inc. And: Terracon Consultants Inc

Signature Signature

Name Name

Title Title

Date: Date: