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

DC009A Completion October 31, 2022

Under this task assignment, APTIM will commence groundwater sampling.

Work will be done according to the attached scope of work dated June 6, 2022.

Melissa Walsh 407-287-3216 Contractor Contractor

Contractor Contractor

Contractor Contractor

Contractor

APTIM

APTIM

Eric Kramer 407-287-3216

ERIC_5462

160 S HWY 17-92, LONGWOOD, SEMINOLE County

Blue Ribbon Cleaners

✔ $ 7,401.11

$ 7,401.11

Scope of Work

Eric Kramer

APTIM Contract Manager

Eric Kramer Digitally signed by Eric Kramer Date: 2022.06.10 11:14:39 -04'00'

William E. Burns, Jr.

William E. Burns, Jr. Digitally signed by William E. Burns, Jr.

Date: 2022.06.08 16:21:52 -04'00'

N/A

Task Assignment Notification/Change Order

Deliverables and Invoice Schedule Attachment

WCP TAFORM 04-2017

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

Annual Groundwater Monitoring, Field Documentation, and Laboratory Report; IDW Disposal Documentation, and project management. Subtask 2& 1 08/26/2022

Upon Submittal and approval of Annual Groundwater Monitoring Field Documentation and Laboratory Report; IDW Disposal Documentation and project management. Subtask 2& 1

$ 7,401.11

$ 7,401.11

HW689

DC009A

FLORIDA DEPARTMENT OF

Environmental Protection

Bob Martinez Center 2600 Blair Stone Road

Tallahassee, FL 32399-2400

Ron DeSantis Governor

Jeanette Nuñez Lt. Governor

Shawn Hamilton Secretary

Memorandum TO: APTIM Contract File

Contract No. HW689

FROM: Melissa A Walsh, Project Manager

SUBJECT: Blue Ribbon Cleaner

FAC # ERIC_5462

DATE:

Task Assignment# DC009A Monitoring June 7, 2022

Under this task assignment, APTIM will commence groundwater sampling.

Work will be done according to the attached scope of work dated June 6, 2022.

Subtask 1: Project Management Under this subtask is a percentage of the overall project and has been negotiated as a contract rate.

Subtask 2: Annual Groundwater Reporting Under this subtask APTIM will complete will complete annual ground water monitoring. The following wells are recommended for annual sampling: MW006 and MW009. Monitoring well MW002 was eliminated from sampling based on the up gradient location and previous results being below target analyses over the past few years. Erwin Remediation was selected to provide IDW transportation and disposal, based on bids procured. The IDW sample will be analyzed by EPA Method 8260 for VOHs only for characterization of the waste.

Documentation of the costs is included in the attached CEF, Level-of-Effort sheets, and the APTM proposal. The final deliverable due date is August 26,2022 , and the completion date for the Task Assignment is October 31, 2022. The final cost total for DC009A is $ $7,401.11

FDEP COST ESTIMATE

Contractor: Aptim Environmental & Infrastructure, LLC

Date: 6/6/2022

Task #: HW689 - HW009A ERIC_5462 SubTask 1 Project Management

Site: Blue Ribbon Cleaners (Former) SubTask 2 2-Groundwater Sampling

Activity/Phase: Annual Monitoring SubTask 3

Project Manager: Melissa Walsh SubTask 4

SubTask 5

Totals 1 2 3 4 5 Labor Rate Category

$65.22 Project Manager E. Kramer 4 4.4 $65.22 Engineer/Scientist 5 E. Kramer 2 2 0 0 0 $61.98 Engineer/Scientist 5 G. Roberts 25 25 0 0 0 $34.53 Engineer/Scientist 2 K. Howard 12 12 0 0 0 $32.56 Designer 2 S. Ferianc 2 2 0 0 0 $27.64 Technical Publications Specialist 3 H. Vining 2 2 0 0 0

$0.00 0 0 0 0 0 Total Hours 47 4 43 0 0 0

Direct Labor $2,502.61 $287.91 $2,214.70 $0.00 $0.00 $0.00

Overhead 85.58% $2,141.73 $246.39 $1,895.34 $0.00 $0.00 $0.00 Gen & Admin 19.38% $485.01 $55.80 $429.21 $0.00 $0.00 $0.00 Fringe 31.96% $799.84 $92.02 $707.82 $0.00 $0.00 $0.00 Total Labor $5,929.19 $682.12 $5,247.07 $0.00 $0.00 $0.00

Travel Vehicle Rental $120.00 $120.00 $0.00 $0.00 $0.00 Mileage Costs $0.00 $0.00 $0.00 $0.00 $0.00 Air Fare $0.00 $0.00 $0.00 $0.00 $0.00 Per diem + Hotel $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $120.00 $120.00 $0.00 $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 $100.00 $100.00 $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 $100.00 $100.00 $0.00 $0.00 $0.00 Handling Fee $10.00 $10.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $110.00 $110.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $219.00 $219.00 $0.00 $0.00 $0.00 Fast Turnaround Charges $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping $0.00 $0.00 $0.00 $0.00 $0.00 Total Laboratory $219.00 $219.00 $0.00 $0.00 $0.00

Field Expenses Personal Protection $0.00 $0.00 $0.00 $0.00 $0.00 Expendables $40.00 $40.00 $0.00 $0.00 $0.00 Equipment (Drilling related) $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $290.00 $290.00 $0.00 $0.00 $0.00 Equipment (IDW related) $100.00 $100.00 $0.00 $0.00 $0.00 Equipment (Other) $0.00 $0.00 $0.00 $0.00 $0.00 Total Field Expenses $430.00 $430.00 $0.00 $0.00 $0.00

Subtotal $6,808.19 $682.12 $6,126.07 $0.00 $0.00 $0.00 Completion Fee $592.92 $68.21 $524.71 $0.00 $0.00 $0.00

Total Estimated Cost $7,401.11 $750.33 $6,650.78 $0.00 $0.00 $0.00

REV: 02/03 CEF SHAW Page 1

SITE : Blue Ribbon Cleaners (Former) SUBTASK: 2-Groundwater Sampling

DATE: 6/6/2022

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 2

Engineer/Scientist 5 G. Roberts

Engineer/Scientist 2 K. Howard

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

TOTAL LABOR 43

VEHICLE TYPE RATE UNIT USEAGE

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

TOTAL VEHICLE $120.00

PER DIEM STAFF RATE UNIT USEAGE

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

Erwin Remediation Non-Haz Soil/Water T&D $100.00 Drum 1 $100.00

TOTAL $100.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

EPA Method TO-15 (VOC Soil Vapor) $200.00 0 0 $0.00 EPA Method 8260 (Halos Only) $73.00 2 0 $146.00 EPA Method 8260 (Halos Only/IDW) $73.00 1 $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 MAGS Investigation Kit $500.00 Day 0 $0.00 Tedlar Bags $20.00 Each 0 $0.00 55-gallon Drum $100.00 Each 1 $100.00

TOTAL EQUIPMENT $430.00

Report Document Production Proposed Sampling Monitoring Well MW006 and MW009 by EPA Method 8260 (VOHs only).

Technical Review of Groundwater Sampling Report (2 hrs)

Groundwater Sample Reporting (Drafting), GW Flow and Analytical Results Maps

Order Sampling Laboratory Kits and Supplies (1 hr), Preparation of Shallow GW Flow Maps and GW Analytical Summary Results Maps (3 hrs). Update of GW Elevation, Analytical Summary Tables (2 hrs), Preparation of Groundwater Sampling Report Text, Recommendations, and Conclusions (18 hrs). Preparation of IDW manifest and profile (1 hr) Travel Preparation and Mobilization (1 hr), Round trip travel (2 hrs). Collect Depth to Groundwater Measurements from all wells (2 hrs). Preparation and Testing/Calibration of GW Sampling Field Equipment, Groundwater sampling from MW006 and MW009 (4 hrs), Purge Water Handling and Site Restoration and Cleanup (1 hr), Prepare chain of custody preparation, sample packaging (1 hr), Sample Delivery (1 hr).

Item Description Units Unit Price Total

Amount Units Unit Price Total

Amount Units Unit Price Total

Amount Units Unit Price Total

Amount Transporation 1 $310.00 $310.00 Disposal (soil) None None None Disposal (liquid) $89.00 1 $90.00 $90.00 1 $100.00 $100.00 Additional Costs/Fees $294.07 1 $50.00 $50.00

Total $693.07 $140.00 No Quote Provided $100.00

US Ecology Clark Environmental Safety-Kleen

February 7, 2022

None

Included in Disposal

Erwin Remediation

Included in Disposal

IDW Pickup and Disposal Bid Summary Blue Ribbon Cleaners (former) 160 South U.S. Highway 17-92

Longwood, Florida 32750 FDEP Site No. ERIC_5462 (Former FAC ID #599500616)

Roberts, Gregg

From: Roberts, Gregg Sent: Friday, February 4, 2022 6:34 PM To: ross.harvey@usecology.com Cc: Kramer, Eric Subject: Request for Quotation for Non-Hazardous IDW T&D – Blue Ribbon Cleaners (former), Longwood

Hello Ross:

I need an estimate to include in a proposal to pick-up and dispose of non-hazardous liquid which will be generated during the development and purging of a monitoring well at the following site:

Site Info:

Blue Ribbon Cleaners 160 South US Highway 17-92 Longwood, Florida 32750 ERIC_5462 (Former FAC #599500616) APTIM Project Number 2433003797

The former Blue Ribbon Cleaners operated as a full-service drycleaning facility beginning in 1982, when the shopping center was originally constructed and operated wet-to-dry machines from 1982 through 1998. The facility cleanup is under the Drycleaning Solvent Cleanup Program. The work is being performed for the FDEP Waste Cleanup Section.

As previously stated, the IDW transportation and disposal estimate is for non-hazardous waste. Please provide a Lump Sum Estimate, as the actual disposal count may vary from the estimate below

a. 1 drum of purge water from well sampling (liquid)

b. Please include transportation, disposal and preparation of the waste profiles and manifests in the cost estimate.

There is no analytical available now, but the proposal is for non-hazardous transportation and disposal. Characterization of the liquid IDW composite will be submitted for EPA Method 8260 (VOHs only).

If you need additional analysis for the waste characterization, please indicate so in your response.

I do not need a formal proposal, an email response by close of business on Monday, February 7, 2022, would be appreciated.

Please give me a call should you have any questions, Gregg

GREGG ROBERTS, PG

Project Manager

APTIM | ENVIRONMENT & SUSTAINABILITY

O 813 612 3687 M 863 670 0215 E gregg.roberts@aptim.com

PROPOSAL#: MS-020822-TAM

CUSTOMER: Aptim

ADDRESS: 725 US Highway 301 South

Tampa, FL 33619

PHONE: (813) 612-3687

EMAIL: gregg.roberts@aptim.com

February 8th, 2022

Dear Gregg:

I appreciate this opportunity to provide environmental management solutions on behalf of US Ecology Tampa, Inc.

(“Contractor”). To follow up on our discussion, I am pleased to present this proposal.

Contractor’s parent US Ecology, Inc., together with its subsidiaries, is a leading North American provider of environmental services to commercial and government entities. We address the complex waste management needs of our customers by offering treatment, disposal, and recycling of hazardous and radioactive waste, as well as a wide range of complementary field and industrial services. US Ecology’s 60 years of experience and focus on safety, environmental compliance, and customer service, enable us to reliably and cost effectively meet the needs of our customers.

We understand you need a professional, integrated transportation, treatment, and disposal solution, and we have designed this project to meet your needs. Our best-in-class customer service leverages our industry leading capabilities and will allow us to deliver the strongest solution available in the market today. We look forward to supporting you on this project!

This proposal is valid for 90 days, and is subject to Contractor’s terms and conditions included herein, which you agree will apply to all services. Upon the expiration of this proposal, this offer to perform services, and the specified prices, are subject to change or withdrawal. When a waste approval is granted, you will receive a price confirmation document further specifying the applicable pricing and billing unit. Please indicate your acceptance of this proposal by signing below.

SCOPE OF WORK:

US Ecology’s Tampa Field Services group is pleased to submit this proposal to provide the labor, materials and equipment necessary to properly package, transport and dispose of designated waste materials in Longwood, FL . USE proposes to perform the following work:

• Properly segregate and label all designated waste materials in accordance with all applicable regulations (as necessary).

• Provide all necessary shipping documents and transport the material in licensed vehicles

• Customer/Generator prepared materials must be in DOT-shippable containers.

• Pricing applicable on all containers (percentage of 55-gallon drum price): 5 – 15 gallons 35%; 16 – 30 gallons

75%; 31 – 55 gallons 100%; 56 – 85 gallons %150; CYB 300%

US Ecology Tampa, Inc.

Aptim

Signature

Signature

Print Name

Print Name

Title

Title

Date

Date

PROPOSAL

TREATMENT TYPE:

Waste Services – IDW Drums from Longwood FL

Pricing is pending an approved profile and acceptance for waste verification.

RATES:

Description Treat Group Size Unit Rate Quantity Minimums Ext Cost

Purge Water - Non Regulated 1446 55 Gal $89.00 1 $89.00

Paperwork & Profile Fee $250.00 1 $250.00

Environmental Insurance Recovery Fee 13% $44.07

E-Manifest Fee $20.00

Estimated Disposal Subtotal $383.07

Transportation - Long Bay, FL to Tampa, FL

Size Unit Rate Quantity Ext Cost

Transportation Minimum $248.00

Drum Rate 55 Gal $38.00 1 $248.00

Fuel Surcharge - Varies Weekly 25% 1 $62.00

Demurrage - After 1 Hour Free Hour $105.00

Estimated Transportation Total $310.00

Estimated Project Total $693.07

Thank you, Marco Sapone Account Executive – Florida US ecology marco.sapone@usecology.com c: (386) 530-9891 mailto:marco.sapone@usecology.com

From: Roberts, Gregg Sent: Friday, February 4, 2022 6:34 PM To: Steve Hall Cc: Kramer, Eric Subject: Request for Quotation for Non-Hazardous IDW T&D – Blue Ribbon Cleaners (former), Longwood

Hello Steve:

I need an estimate to include in a proposal to pick-up and dispose of non-hazardous liquid which will be generated during the development and purging of a monitoring well at the following site:

Site Info:

Blue Ribbon Cleaners 160 South US Highway 17-92 Longwood, Florida 32750 ERIC_5462 (Former FAC #599500616) APTIM Project Number 2433003797

The former Blue Ribbon Cleaners operated as a full-service drycleaning facility beginning in 1982, when the shopping center was originally constructed and operated wet-to-dry machines from 1982 through 1998. The facility cleanup is under the Drycleaning Solvent Cleanup Program. The work is being performed for the FDEP Waste Cleanup Section.

As previously stated, the IDW transportation and disposal estimate is for non-hazardous waste. Please provide a Lump Sum Estimate, as the actual disposal count may vary from the estimate below

a. 1 drum of purge water from well sampling (liquid)

b. Please include transportation, disposal and preparation of the waste profiles and manifests in the cost estimate.

There is no analytical available now, but the proposal is for non-hazardous transportation and disposal. Characterization of the liquid IDW composite will be submitted for EPA Method 8260 (VOHs only).

If you need additional analysis for the waste characterization, please indicate so in your response.

I do not need a formal proposal, an email response by close of business on Monday, February 7, 2022, would be appreciated.

Please give me a call should you have any questions, Gregg

GREGG ROBERTS, PG

Project Manager

APTIM | ENVIRONMENT & SUSTAINABILITY

O 813 612 3687

From: Roberts, Gregg Sent: Friday, February 4, 2022 6:34 PM To: michael.infante@safety-kleen.com Cc: Kramer, Eric Subject: Request for Quotation for Non-Hazardous IDW T&D – Blue Ribbon Cleaners (former), Longwood

Hello Michael:

I need an estimate to include in a proposal to pick-up and dispose of non-hazardous liquid which will be generated during the development and purging of a monitoring well at the following site:

Site Info:

Blue Ribbon Cleaners 160 South US Highway 17-92 Longwood, Florida 32750 ERIC_5462 (Former FAC #599500616) APTIM Project Number 2433003797

The former Blue Ribbon Cleaners operated as a full-service drycleaning facility beginning in 1982, when the shopping center was originally constructed and operated wet-to-dry machines from 1982 through 1998. The facility cleanup is under the Drycleaning Solvent Cleanup Program. The work is being performed for the FDEP Waste Cleanup Section.

As previously stated, the IDW transportation and disposal estimate is for non-hazardous waste. Please provide a Lump Sum Estimate, as the actual disposal count may vary from the estimate below

a. 1 drum of purge water from well sampling (liquid)

b. Please include transportation, disposal and preparation of the waste profiles and manifests in the cost estimate.

There is no analytical available now, but the proposal is for non-hazardous transportation and disposal. Characterization of the liquid IDW composite will be submitted for EPA Method 8260 (VOHs only).

If you need additional analysis for the waste characterization, please indicate so in your response.

I do not need a formal proposal, an email response by close of business on Monday, February 7, 2022, would be appreciated.

Please give me a call should you have any questions, Gregg

GREGG ROBERTS, PG

Project Manager

APTIM | ENVIRONMENT & SUSTAINABILITY

O 813 612 3687

From: Roberts, Gregg Sent: Friday, February 4, 2022 6:34 PM To: Erwin Remediation Cc: Kramer, Eric Subject: Request for Quotation for Non-Hazardous IDW T&D – Blue Ribbon Cleaners (former), Longwood

Hello Jonathan:

I need an estimate to include in a proposal to pick-up and dispose of non-hazardous liquid which will be generated during the development and purging of a monitoring well at the following site:

Site Info:

Blue Ribbon Cleaners 160 South US Highway 17-92 Longwood, Florida 32750 ERIC_5462 (Former FAC #599500616) APTIM Project Number 2433003797

The former Blue Ribbon Cleaners operated as a full-service drycleaning facility beginning in 1982, when the shopping center was originally constructed and operated wet-to-dry machines from 1982 through 1998. The facility cleanup is under the Drycleaning Solvent Cleanup Program. The work is being performed for the FDEP Waste Cleanup Section.

As previously stated, the IDW transportation and disposal estimate is for non-hazardous waste. Please provide a Lump Sum Estimate, as the actual disposal count may vary from the estimate below

a. 1 drum of purge water from well sampling (liquid)

b. Please include transportation, disposal and preparation of the waste profiles and manifests in the cost estimate.

There is no analytical available now, but the proposal is for non-hazardous transportation and disposal. Characterization of the liquid IDW composite will be submitted for EPA Method 8260 (VOHs only).

If you need additional analysis for the waste characterization, please indicate so in your response.

I do not need a formal proposal, an email response by close of business on Monday, February 7, 2022, would be appreciated.

Please give me a call should you have any questions, Gregg

GREGG ROBERTS, PG

Project Manager

APTIM | ENVIRONMENT & SUSTAINABILITY

O 813 612 3687

From: Erwin Remediation <erwinremediation@gmail.com> Sent: Monday, February 7, 2022 7:49 AM To: Roberts, Gregg Cc: Kramer, Eric Subject: Re: Request for Quotation for Non-Hazardous IDW T&D – Blue Ribbon Cleaners (former), Longwood

EXTERNAL SENDER

Hi Gregg, This will be $100.00 per drum, total, for both transportation and disposal.

Thank you, Jonathan Erwin Erwin Remediation, Inc.

Office: (850) 292‐6511|Email: ErwinRemediation@Gmail.com Erwin Remediation, Inc.|408 Ditmar Street Pensacola, FL 32503

On Fri, Feb 4, 2022 at 5:33 PM Roberts, Gregg <Gregg.Roberts@aptim.com> wrote:

Hello Jonathan:

I need an estimate to include in a proposal to pick-up and dispose of non-hazardous liquid which will be generated during the development and purging of a monitoring well at the following site:

Site Info:

Blue Ribbon Cleaners

160 South US Highway 17-92

Longwood, Florida 32750

ERIC_5462 (Former FAC #599500616)

APTIM Project Number 2433003797

The former Blue Ribbon Cleaners operated as a full-service drycleaning facility beginning in 1982, when the shopping center was originally constructed and operated wet-to-dry machines from 1982 through 1998. The facility cleanup is under the Drycleaning Solvent Cleanup Program. The work is being performed for the FDEP Waste Cleanup Section.

As previously stated, the IDW transportation and disposal estimate is for non-hazardous waste. Please provide a Lump Sum Estimate, as the actual disposal count may vary from the estimate below

Proposed Scope of Work Blue Ribbon Cleaners Groundwater Sampling Task Assignment HW689 DC009A ERIC_5462 (Former FAC ID No. 599500616) APTIM Environmental & Infrastructure, Inc.

6/6/22

The former Blue Ribbon Cleaners facility is generally sampled on an annual basis but has not been sampled since 2020. The following proposed scope of work for Task Assignment (TA) DC009A is collection and sampling of groundwater samples from two

(2) monitoring wells.

The wells were selected in accordance with the FDEP recommendations of the Well Redevelopment and Sampling Report dated January 17, 2020, prepared for the Blue Ribbon Cleaners and approved by the FDEP on March 25, 2020. The following wells are recommended for annual sampling: MW006 and MW009. Monitoring well MW002 was eliminated from sampling by the FDEP based on the upgradient location and previous results being below target analytes over the past few years.

Prior to groundwater sample collection, depth to water measurements will be collected from all monitor wells. Groundwater samples from the monitoring wells will be collected in accordance with the FDEP Standard Operating Procedures for Field Activities utilizing a peristaltic pump and a field-calibrated YSI multi-parameter instrument. The samples will be delivered to a NELAP Certified Laboratory for volatile organic halocarbons (VOHs) analysis by EPA Method 8260.

Purge water will be placed into a drum for storage onsite and future pickup and disposal.

Erwin Remediation was selected to provide IDW transportation and disposal, based on bids procured. The IDW sample will be analyzed by EPA Method 8260 for VOHs only for characterization of the waste.

A Groundwater Sampling Report will be provided summarizing the groundwater measurements and analytical results in tables, figures and text including conclusions and recommendations. APTIM recommends the following schedule:

Description Due Date

Collection of GW Samples 7/15/2022

Submit Groundwater Sampling Report 8/26/2022

Task Expiration Date 10/31/2022

APTIM proposes to perform this scope of work in accordance with the terms and conditions of the contract executed between APTIM Environmental & Infrastructure, LLC and Florida Department of Environmental Protection No. HW689 signed December 21, 2021. APTIM will begin the proposed scope of work upon written authorization.

Please call should you have any questions.