CN-370000-HW680-DC018C.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.

HW680

DC018C Completion October 10, 2025

Arcadis will conduct annual groundwater monitoring including sampling for PFAS compounds from select wells at the site. All activities will be performed according to the April 7, 2025, Work Plan submitted by Arcadis.

Theresa Pepe 850-245-8966 Contractor Arcadis U.S. Inc. Contractor

Contractor Gus Suarez Contractor 813-205-4703

ERIC_4657

4335 Fairfield Drive, Pensacola, Escambia County

Mariner Mall (formerly Big B Cleaners)

Contractor Contractor

✔ $ 20,888.35

$ 20,888.35

Scope of Work

Arcadis U.S. Inc.

Contractor Gus Suarez

Contract Manager

Gus Suarez, P.E. Digitally signed by Gus Suarez, P.E.

Date: 2025.04.08 14:40:02 -04'00'

Mubeen Darji

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

Date: 2025.04.08 13:59:03 -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

Annual Monitoring Report/IDW manifest/Project Management 09/05/2025

PFAS sampling 08/08/2025

FDEP approval of Annual Monitoring Report/IDW manifest/Project Management $ 18,064.92

FDEP approval of PFAS sampling $ 2,823.43

$ 20,888.35

HW680

DC018C

FFLORIDA DDEPARTMENT OF

EEnvironmental Protection

Bob Martinez Center

2600 Blair Stone Road Tallahassee, FL 32399-2400

Ron DeSantis Governor

AAlexis A. Lambert

Secretary

Memorandum

TO: Negotiation File Mariner Mall (former Big B Cleaners)

FACID NO. 17-9700554; ERIC_4657

Pensacola, Escambia County FROM: Theresa Pepe, Project Manager SUBJECT: Task Assignment DC018C (HW680) DATE: April 7, 2025

Arcadis U.S. Inc. will perform annual groundwater monitoring from select wells at the site. Groundwater monitoring will ensure that natural attenuation of contaminants continues to occur. Additionally, select wells will be sampled for PFAS compounds. All activities will be conducted in accordance with the April 7, 2025, Work Plan submitted by Mike O’Sullivan of Arcadis.

The cost on the original proposal equaled $23,845.09. The final negotiated task assignment total is $20,888.35. Arcadis may invoice according to the attached schedule.

Specific negotiated subtasks are as follows:

Subtask 1: Project Management Project Management is automatically calculated as a percentage of total labor.

Subtask 2: Annual Groundwater Monitoring FDEP obtained site access from the current property owner in January 2024.

Arcadis will sample twenty-one wells for drycleaning solvents based on recommendations from the previous monitoring report. Passive Diffusion Bags (PDB’s) will be utilized for the sampling. Note: The plume is large, at multiple lithologic depths, and is migrating toward a public well. Therefore, the high number of wells sampled is justified. IDW will be removed by a licensed waste hauler.

The final TA reduced total hours from 59 to 55. The cost of the diffusion samplers was changed to the rate in the approved contract.

Mariner Mall

ERIC_4657

Subtask3: PFAS sampling Arcadis will sample two wells for PFAS compounds using FDEP’s laboratory in Tallahassee. The number of wells was reduced from four to two; equipment was reduced accordingly, and lab shipping was removed. Total labor hours were reduced by one.

Subtask 4: Reporting An Annual Monitoring Report including recommendations for additional actions will be provided under this subtask. The DEP project manager reduced total reporting hours from 44 to 34.

FDEP COST ESTIMATE

Contractor: Arcadis, U.S., Inc.

Date: 3/19/25

Task #: SubTask 1 Project Management Site: Mariner Mall (formerly Big B Cleaners) SubTask 2 Groundwater Monitoring (VOHs)

Activity/Phase: Monitoring SubTask 3 Groundwater Monitoring (PFAS) Project Manager: Mike O'Sullivan SubTask 4 Reporting (PFAS & VOHs)

SubTask 5

Totals 1 2 3 4 5 Labor Rate Category

$63.17 Project Manager O'Sullivan, Mike (MOS) 10 10.4 $63.17 Principal Scientist O'Sullivan, Mike (MOS) 38 19 5 14 0 $38.15 Staff Scientist Martineau, Duncan (DM) 48 32 10 6 0 $39.67 Drafter/Designer Oliva, Brian (BO) 6 0 0 6 0 $38.28 Project Assistant Cruz, Michele (MC) 12 4 4 4 0 $35.00 Document Technician Ballheim, Debra (DJB) 4 0 0 4 0

Total Hours 118 10 55 19 34 0

Direct Labor $5,728.02 $658.98 $2,574.15 $850.47 $1,644.42 $0.00

Overhead 79.00% $4,525.13 $520.59 $2,033.58 $671.87 $1,299.09 $0.00 Gen & Admin 36.00% $2,062.08 $237.23 $926.69 $306.17 $591.99 $0.00 Fringe 37.10% $2,125.09 $244.48 $955.01 $315.52 $610.08 $0.00 Total Labor $14,440.32 $1,661.28 $6,489.43 $2,144.03 $4,145.58 $0.00

Travel Vehicle Rental $480.00 $360.00 $120.00 $0.00 $0.00 Total Travel $480.00 $360.00 $120.00 $0.00 $0.00

Subcontractor (Equipment Procurement) $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 $0.00 $0.00 $0.00 $0.00 $0.00 Procurement Fee $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $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 Drilling (Non-conventional) $0.00 $0.00 $0.00 $0.00 $0.00 Mobile Laboratory $0.00 $0.00 $0.00 $0.00 $0.00 Surveying $0.00 $0.00 $0.00 $0.00 $0.00 IDW - Erwin Remediation $250.00 $250.00 $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 $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 $250.00 $250.00 $0.00 $0.00 $0.00 Handling Fee $25.00 $25.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $275.00 $275.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $1,533.00 $1,533.00 $0.00 $0.00 $0.00 Fast Turnaround Charges $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping $300.00 $300.00 $0.00 $0.00 $0.00 Total Laboratory $1,833.00 $1,833.00 $0.00 $0.00 $0.00

Field Expenses Personal Protection $0.00 $0.00 $0.00 $0.00 $0.00 Expendables $160.00 $120.00 $40.00 $0.00 $0.00 Equipment (Drilling related) $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $771.00 $756.00 $15.00 $0.00 $0.00 Equipment (IDW related) $200.00 $200.00 $0.00 $0.00 $0.00 Equipment (Other) $1,285.00 $995.00 $290.00 $0.00 $0.00 Total Field Expenses $2,416.00 $2,071.00 $345.00 $0.00 $0.00

Subtotal $19,444.32 $1,661.28 $11,028.43 $2,609.03 $4,145.58 $0.00 Completion Fee $1,444.03 $166.13 $648.94 $214.40 $414.56 $0.00

Total Estimated Cost $20,888.35 $1,827.41 $11,677.37 $2,823.43 $4,560.14 $0.00

REV: 02/03 CEF ARCADIS Page 1

SITE : Mariner Mall (formerly Big B Cleaners) SUBTASK 2: Groundwater Monitoring (VOHs)

DATE: 3/19/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Annual Groundwater Monitoring Principal Scientist Property owners notification and site access agreement updates-five properties (10 hrs), PG oversight with field crew (4 hrs); Technical/trend analysis (5 hr) 19 Scientist Mob/demob, prepare sampling kits/equipment (8 hrs), DTW/field measurements, pdb sampling/deployment 21 wells (24 hrs) 32 Project Assistant Sample container ordering, preparation, electronic transcriptions of field data 4

TOTAL LABOR 55

VEHICLE TYPE RATE UNIT USEAGE

Automobile $80.00 Per Day 0 $0.00 $0.00 Van/Truck $120.00 Per Day 3 $360.00 $360.00

TOTAL VEHICLE $360.00

SUBCONTRACTOR COSTS

Equipment Procurement Name Equipment Rate Units Usage Totals

Total Equip.: $0.00 Services Procurement

Name Purpose Rate Units Usage Totals Erwin Remediation IDW T&D $125.00 Per Drum 2 $250.00

Handling Fee 10% 1 $25.00

Total Services: $275.00

TOTAL $275.00

LABORATORY COSTS

Analytical Costs Parameter Method Media Rate Turn Around Total Samples Totals

VOC (Halocarbons Only) 8260C Aqueous $73.00 1.00 21 $1,533.00 TAT 24-hr=110% (2.1) 3-day=65% (1.65) 1-week=20% (1.20) Total Lab: $1,533.00

Rate Units Usage Shipping - Large (25 to 50 lbs.) --- --- $150.00 Per Cooler 2 $300.00 Shipping - Small (0 to 25 lbs.) --- --- $110.00 Per cooler 0 $0.00

Total Shipping: $300.00

TOTAL LAB $1,833.00

EQUIPMENT

Item Rate Unit Usage Totals Expendables Miscellaneous Expendables $40.00 Per Day 3 $120.00

Total Expendables: $120.00 Equipment Itemsg y 55-gallon Drum $100.00 Each 2 $200.00 Diffusion sampler $36.00 Each 21 $756.00

Total Equipment Items: $956.00 Equipment Kits Shallow Groundwater Sampling Kit $290.00 Day 2 $580.00 Deep Groundwater Sampling Kit $415.00 Day 1 $415.00

Total Equipment Kits: $995.00

Total Equipment $2,071.00

SUBTASK 3: Groundwater Monitoring (PFAS)

DATE: 3/19/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Annual Groundwater Monitoring - PFAS Principal Scientist Property owners verification, notification and site access agreement updates. Lab coordination. Field personnel ovesight. Staffing. 5 Scientist Mob/demob, prepare sampling kits/equipment, DTW/field measurements, purge and sample 4 MWs. Pack and ship samples 10 Project Assistant Sample container ordering, preparation, electronic transcriptions of field data 4

TOTAL LABOR 19

VEHICLE TYPE RATE UNIT USEAGE

Automobile $80.00 Per Day 0 $0.00 $0.00 Van/Truck $120.00 Per Day 1 $120.00 $120.00

TOTAL VEHICLE $120.00

SUBCONTRACTOR COSTS

Services Procurement Name Purpose Rate Units Usage Totals

Erwin Remediation IDW T&D $125.00 Per Drum 0 $0.00 Handling Fee 10% 0 $0.00

Total Services: $0.00

TOTAL $0.00

LABORATORY COSTS

Analytical Costs Parameter Method Media Rate Turn Around Total Samples Totals

VOC (Halocarbons Only) 8260C Aqueous $73.00 1.00 0 $0.00 TAT 24-hr=110% (2.1) 3-day=65% (1.65) 1-week=20% (1.20) Total Lab: $0.00

Rate Units Usage Shipping - Large (25 to 50 lbs.) --- --- $150.00 Per Cooler 0 $0.00 Shipping - Small (0 to 25 lbs.) --- --- $110.00 Per cooler 0 $0.00

Total Shipping: $0.00

TOTAL LAB $0.00

EQUIPMENT

Item Rate Unit Usage Totals Expendables Miscellaneous Expendables $40.00 Per Day 1 $40.00

Total Expendables: $40.00 Equipment Items Tubing, Poly/HDPE $0.30 Per Foot 50 $15.00 55-gallon Drum $100.00 Each 0 $0.00

Total Equipment Items: $15.00 Shallow Groundwater Sampling Kit $290.00 Day 1 $290.00

Total Equipment Kits: $290.00

Total Equipment $345.00

SUBTASK 4: Reporting (PFAS & VOHs)

DATE: 3/19/25

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Data Evaluation and Letter Report Principal Scientist Data evaluation. Preparation of an Annual GW Monitoring Report, sign and seal report 14 Scientist Data evaluation 6 Drafter Figures preparation 6 Document Technician Editing; Report preparation 4 Project Assistant Report editing/formatting, and report production/submittal/delivery 4

TOTAL LABOR 34

Arcadis U.S., Inc.

1705 Metropolitan Boulevard Suite 101 Tallahassee Florida 32308 Phone: 850 422 2555 Fax: 850 668 0080 www.arcadis.com

FL Engineering License #7917 FL Geology License #GB564 FL Surveying License #LB7062

Ms. Theresa Pepe Bureau of Waste Cleanup Division of Waste Management Florida Department of Environmental Protection 2600 Blair Stone Road, M.S. 4520 Tallahassee, Florida 32399-2400

Date: April 7, 2025 Subject: Proposal for Annual Groundwater Monitoring at Mariner Mall (formerly Big B Cleaners), 4335 Fairfield Drive, Pensacola, FL, FDEP Facility Identification Number ERIC_4657.

Dear Ms. Pepe, Arcadis U.S., Inc. (Arcadis) is pleased to submit this level of effort (LOE) and cost proposal for the annual groundwater monitoring activities at Mariner Mall (formerly Big B Cleaners), located at 4335 Fairfield Drive, Pensacola, FL (FDEP Facility Identification Number ERIC_4657; “the Site”). This proposal includes one groundwater monitoring event for VOHs, one groundwater monitoring event for PFAS, and one letter report summarizing both field events. The FDEP cost estimating spreadsheets (Attachment A) is attached.

SCOPE OF WORK

Subtask 1 - Project Management Subtask 1 is reserved for project management as specified by FDEP and is calculated automatically in the cost estimating form (Attachment A).

Subtask 2 - Groundwater Monitoring (VOHs) Depth-to-water (DTW) will be measured in 21 existing monitor wells. DTW measurements will be used to establish groundwater flow direction, horizontal gradients, and vertical gradients. Following completion of DTW measurement, PDBs will be removed from 21 existing wells (MW002, MW003, MW010, MW011, MW012, MW013, MW014, MW015, MW016, CW008, MW006, MW007, MW018, MW019, MW020, MW021, CW012, MW023, MW024, MW025, and MW026). Each PDB or monitor well will be sampled for volatile organic halocarbons (VOHs only) by EPA Method 8260C for a total of 21 groundwater samples. Groundwater samples will be delivered to a National Environmental Laboratory Accreditation Program (NELAP)-approved laboratory for analysis. Due to the volume contained in each PDB and that the field water quality parameters are not reflective of true aquifer conditions, field water quality measurements will not be collected. Monitoring well purge water will www.arcadis.com _Mariner Mall AGM proposal_mar2025

FDEP – Mariner Mall Proposal April 2025 be contained in 55-gallon drums, sampled for characterization, and disposed of properly. Monitoring well locations are shown on attached figures.

PDB Replacement PDBs will be replaced in all of the monitor wells sampled except those that are going to be sampled for PFAS in Subtask 3 for use during the next annual monitoring event. Field replacement of PDBs during the sampling event will allow the PDBs to achieve equilibrium with aquifer at an earlier date and is cost saving measure for future groundwater monitoring events. The Interstate Technology Regulatory Council (ITRC) PDB Samplers Frequently Asked Questions states that PDBs have been used to annually monitor groundwater sites with no obvious loss of bag integrity depending on groundwater conditions.

Subtask 3 - Groundwater Monitoring (PFAS) Arcadis proposes to mobilize to the Site to conduct an expanded annual groundwater monitoring event to delineate PFAS to the PGCTL and determining whether there are contributing offsite sources of PFAS. Based on the results from the 2024 monitoring event Arcadis recommends PFAS sampling of monitoring wells MW002, and MW013.

Monitoring well locations are shown on the attached figures. Groundwater samples will be collected in accordance with FDEP SOPs and submitted to FDEP’s Laboratory for PFAS analysis. Monitoring well purge water will be contained in 55-gallon drums, sampled for characterization, and disposed of properly. Following the PFAS sampling the PDBs will be replaced in these two monitoring wells.

Subtask 4 - Annual Groundwater Monitor Report Upon completion of sampling activities and receipt of laboratory analytical reports, Arcadis will prepare an Annual Groundwater Monitoring Report. The report will detail sampling activities and present updated tables and figures depicting groundwater flow direction and plume extent/concentrations. The report will present conclusions and recommendations based upon historical and newly acquired data.

SCHEDULE

Arrangements for groundwater sampling activities will be conducted upon receipt of a Task Assignment (TA) from the FDEP.

ESTIMATED COST

A Cost Estimate Form and Level of Effort forms (CEF/LOE) that present estimated project costs are included as Attachment A. Please contact me if you have any questions regarding this proposal.

408 Ditmar Street

Pensacola, FL 32503

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

To: Mr. Mike O’Sullivan Arcadis US, Inc 1705 Metropolitan Boulevard Tallahassee, FL 32308

March 18, 2025

Re: Drum Disposal – 4335 Fairfield Drive – Pensacola, FL

Mr. O’Sullivan:

The price for transportation and disposal (T&D) of two (2) non-hazardous water impacted with drycleaning solvents from your site located in Pensacola, FL will be $125.00 per drum, or $250.00 total.

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