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.

HW681

DC031B Completion February 15, 2024

CDM Smith Inc. will conduct Supplemental Site Assessment in accordance with the June 7th, 2023 Scope of Work and Cost Proposal.

Kyle McMurray 850-245-8973 Contractor Contractor

Contractor Contractor

Contractor Contractor

Contractor

CDM Smith Inc.

CDM Smith Inc.

Shayne Wood 904-527-6703

ERIC_4745

4336 South Manhattan Avenue, Tampa, Hillsborough County, Florida

Norgetown Cleaners

✔ $ 89,596.27

$ 89,596.27

Scope of Work

Shayne Wood

Vice President

6/28/2023

Shayne Wood Digitally signed by Shayne Wood DN: C=US, E=woodsh@cdmsmith.com, CN=Shayne Wood Date: 2023.06.28 11:26:48-04'00'

Jennifer Farrell

Digitally signed by Jennifer Farrell Date: 2023.06.28 09:02:07 -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

Subtask 2 Field documentation, groundwater sampling logs, tables, figures, laboratory report, and IDWdisposal documentation details

08/25/2023

Subtask 3 Offsite Access Form, boring logs, well construction details 10/31/2023

Subtask 4 Field documentation, groundwater sampling logs, laboratory report, and IDW disposal documentation

11/15/2023

Subtask 5 Submit SSAR 01/31/2024

Subtask 2 Field documentation, groundwater sampling logs, tables, figures, laboratory report, and IDWdisposal documentation details

$ 13,706.36

Subtask 3 Offsite Access Form, boring logs, well construction details $ 55,210.05

Subtask 4 Field documentation, groundwater sampling logs, laboratory report, and IDW disposal documentation

$ 9,837.81

Subtask 1 and 5 Submit SSAR + Project Management $ 10,842.05

$ 89,596.27

HW681

DC031B

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

TO: HW681 Contract File

FROM: Kyle McMurray, Contract Manager

DATE: June 26th, 2023

SUBJECT: Negotiation Summary

Task Assignment DC031B Norgetown Cleaners

ERIC_4745

SSAR

CDM Smith Inc. (CDM) will conduct Supplemental Site Assessment. Specific subtasks are detailed below:

Subtask 1: Project Management Project Management is calculated at 13% of the direct labor.

Subtask 2: Baseline Groundwater Monitoring and MAGs Sampling re-testing Groundwater samples will be collected from the 13 existing monitoring wells and analyzed for VOHs by EPA Method 8260B. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. Well purging and sample collection will be completed in accordance with FDEP Standard Operating Procedure FS 2200. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. MAGS testing will be performed for existing MAGS™ wells M-2, M-3, M-4, and M-5 to confirm the results collected during the 2020 SAR activities, general accordance with the Modified Active Gas Sampling Manual dated October 12, 2004, prepared by HSA Engineers & Scientists. Prior to initiating Subtask 3 monitoring well installation, CDM Smith and FDEP will perform a technical review of the groundwater data to determine the locations and depths where additional assessment is needed to complete delineation of the contaminants of concern at the site. This task includes a teleconference between CDM Smith and FDEP.

Investigation derived waste (IDW) disposal is anticipated and has been accounted for under this subtask. Erwin Remediation for IDW disposal was chosen on a lowest-cost basis. 2 IDW bids are included and the 3rd from EnviroServe was non-responsive.

Subtask 3: Monitoring Well Installation CDM Smith proposes to install five additional monitoring wells at the locations recommended in the SAR. Monitoring wells MW-22 and MW-23 are within the site property boundary. The remaining three monitoring wells are located offsite, as summarized below, and will require offsite access agreements. Contractor will subcontract utility location services to clear the boring locations prior to well drilling. In addition, Contractor will also request Sunshine 811 services to mark the public utilities. The total well depths range from 40 feet (ft) to 100 ft below land surface (bls). Sonic drilling was used to install the monitoring wells during the site assessment and

Contractor recommends using the same method for the new well installations. Continuous formation samples will be collected to the total well depth and a boring log will be recorded. Sonic 8-diameter override casing has been used at this site to install monitoring wells below a depth of approximately 35 ft bls. PFAS free water for this scope of work was $2,375. The monitoring wells will be completed as 2-inch diameter PVC wells. The same screen lengths installed during the site assessment will be installed for the new wells and all screens will be 5 ft long. Sand pack and a fine-grained sand seal will be installed, and the remainder of the borehole annulus grouted. The five new monitoring wells (MW-19, MW-20, MW-21, MW-22, and MW-23) will be surveyed by Southeastern Surveying and mapping.

Investigation derived waste (IDW) disposal is anticipated and has been accounted for under this subtask. Erwin Remediation for IDW disposal was chosen on a lowest-cost basis. 2 IDW bids are included and the 3rd from EnviroServe was non-responsive.

Subtask 4: Groundwater Monitoring Water levels will be recorded from the 18 monitoring wells. The five new monitoring wells (MW- 19, MW-20, MW-21, MW-22, and MW-23) will be sampled and analyzed for VOHs by EPA Method 8260B. In addition, existing monitoring wells MW-11 and MW-17 will be sampled for natural attenuation parameters, as recommended in the SAR. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. Well purging and sample collection will be completed in accordance with FDEP Standard Operating Procedure FS 2200.

Investigation derived waste (IDW) disposal is anticipated and has been accounted for under this subtask. Erwin Remediation for IDW disposal was chosen on a lowest-cost basis. 2 IDW bids are included and the 3rd from EnviroServe was non-responsive.

Subtask 5: Reporting Contractor will prepare a SSAR in letter format to document the completion of the site assessment work phase and recommend the next steps. This report will document all field activities and results and will include updated figures and data tables along with any notable exceedances and CDM Smith’s conclusions and recommendations.

CDM and the FDEP confirmed on June 26th, 2023, that an Access Agreement with the current real property owner of the site has been executed.

The final cost total for Task Assignment DC031B is $89,596.27.

FDEP COST ESTI MATEContractor: CDM Smith, Inc.

Date: 6/7/2023

Task #: DC031C SubTask 1 Project Management SubTask 6

Site: Norgetown Cleaners SubTask 2 Groundwater Monitoring & MAGS sampling SubTask 7

Activity/Phase: SubTask 3 Monitoring Well Installation SubTask 8

Project Manager: Kara Fincham SubTask 4 Groundwater Monitoring SubTask 9

SubTask 5 Report SubTask 10

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

$63.58 Project Manager 21.8 21.8

$0.00 PTL/PM 0.0 0.0 0.0 0.0 0 0 0 0 0 0

$71.37 PTL/PM S. Cobert 12.0 4.0 5.0 1.0 2.0 0 0 0 0 0 $63.58 PTL/PM K. Fincham 10.0 2.0 4.0 0.0 4.0 0 0 0 0 0

$0.00 Senior Professional 0.0 0.0 0.0 0.0 0.0 0 0 0 0 0 $43.05 Professional II K. Turner 153.0 36.5 67.0 17.5 32.0 0 0 0 0 0 $28.17 Professional I J. Leblanc 92.5 26.0 24.0 26.5 16.0 0 0 0 0 0

Total Hours 289.3 21.8 68.5 100.0 45.0 54 0 0 0 0 0

Direct Labor $12,073.63 $1,389.00 $2,716.39 $4,171.60 $1,571.26 $2,225.38 $0.00 $0.00 $0.00 $0.00 $0.00

Overhead 135.00% $16,299.40 $1,875.15 $3,667.13 $5,631.66 $2,121.20 $3,004.26 $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 37.70% $4,551.76 $523.65 $1,024.08 $1,572.69 $592.37 $838.97 $0.00 $0.00 $0.00 $0.00 $0.00 Total Labor $32,924.79 $3,787.80 $7,407.60 $11,375.95 $4,284.83 $6,068.61 $0.00 $0.00 $0.00 $0.00 $0.00

Travel Vehicle Rental $1,440.00 $240.00 $960.00 $240.00 $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 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $1,440.00 $240.00 $960.00 $240.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Well Installation & Monitoring

Page 1ERIC_4745 Norgetown HW681 rev Cost Estimate Form 5_2023 Rev 2

FDEP COST ESTI MATEContractor: CDM Smith, Inc.

Date: 6/7/2023

Task #: DC031C SubTask 1 Project Management SubTask 6

Site: Norgetown Cleaners SubTask 2 Groundwater Monitoring & MAGS sampling SubTask 7

Activity/Phase: SubTask 3 Monitoring Well Installation SubTask 8

Project Manager: Kara Fincham SubTask 4 Groundwater Monitoring SubTask 9

SubTask 5 Report SubTask 10

Totals 1 2 3 4 5 6 7 8 9 10

Well Installation & Monitoring

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 $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 $0.00 $0.00 $0.00 $0.00 $0.00 Procurement Fee $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor (Services Procurement) Drilling (Conventional) $29,945.00 $0.00 $29,945.00 $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 $2,215.00 $0.00 $2,215.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

IDW $3,500.00 $250.00 $3,125.00 $125.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Utilities $600.00 $0.00 $600.00 $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 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor Subtotal $36,260.00 $250.00 $35,885.00 $125.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Handling Fee $3,566.00 $25.00 $3,528.50 $12.50 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $39,826.00 $275.00 $39,413.50 $137.50 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $5,318.00 $1,822.00 $620.00 $2,876.00 $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 $1,538.00 $763.00 $123.00 $652.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Laboratory $6,856.00 $2,585.00 $743.00 $3,528.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

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 $480.00 $120.00 $280.00 $80.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Drilling related) $1,300.00 $0.00 $1,300.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $2,336.00 $1,506.00 $0.00 $830.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (IDW related) $300.00 $200.00 $0.00 $100.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Other) $841.00 $632.00 $0.00 $209.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Field Expenses $5,257.00 $2,458.00 $1,580.00 $1,219.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subtotal $86,303.79 $3,787.80 $12,965.60 $54,072.45 $9,409.33 $6,068.61 $0.00 $0.00 $0.00 $0.00 $0.00 Completion Fee $3,292.48 $378.78 $740.76 $1,137.60 $428.48 $606.86 $0.00 $0.00 $0.00 $0.00 $0.00

Total Estimated Cost $89,596.27 $4,166.58 $13,706.36 $55,210.05 $9,837.81 $6,675.47 $0.00 $0.00 $0.00 $0.00 $0.00

Page 2ERIC_4745 Norgetown HW681 rev Cost Estimate Form 5_2023 Rev 2

SITE :

SUBTASK: Groundwater Monitoring & MAGS sampling

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

PTL/PM K. Fincham Technical Review Meeting with FDEP 2

PTL/PM S. Cobert Technical/MAGS Support 2

Technical Review Meeting with FDEP 2

Professional II K. Turner Travel (2 days, 2 trips) 6

Field Preparation 1

HASP preparation 1.5

Coordinate Site Access with owner 1

Sample kit request/Prep 2

Collect Sample from Lint Trap 1

Sample 13 wells 10

Perform MAGS Test 8

Prepare Data Summary, Figures, Graphs 4

Attend Technical Review Meeting with FDEP 2

Professional I J. Leblanc Travel (2 days, 2 trips) 2

Sample 13 wells 10

Perform MAGS test 8

Prepare Deliverable documentation 4

IDW Management 2

Total Hours

K.Fincham 2

S. Cobert 4

K. Turner 36.5

J. Leblanc 26 68.5

TOTAL LABOR 68.5

VEHICLE TYPE RATE UNIT USEAGE

Truck $120 each 2 $240.00

TOTAL VEHICLE $240.00

SUBCONTRACTOR COSTS

NAME PURPOSE RATE UNIT USEAGE

Erwin Remediation IDW $125.00 Drum 2 $250.00

TOTAL $250.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

Groundwater VOHs 8260B $73.00 14 0 $1,022.00

VOH - TO 15 $200.00 4 $800.00

Sample Shipping $150.00 5 0 $750.00

Ice $6.50 2 0 $13.00

TOTAL LAB $2,585.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Deep Groundwater Sampling Kit $415.00 Days 3 $1,245.00

Expendables $40.00 Days 3 $120.00

Silicon Tubing (1/4") $3.00 foot 7 $21.00

Summa Canister $33.00 each 4 $132.00

MAGS Kit $500.00 Days 1 $500.00

HDPE Tubing $0.40 per foot 600 $240.00

Drum $100.00 each 2 $200.00

TOTAL EQUIPMENT $2,458.00

Norgetown Cleaners

6/7/2023

SUBTASK:

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Project Manager K. Fincham Field Event Site Preparation 4 PTL/PM S. Cobert Technical Field Support 5 Professional II K. Turner Field Event Site Preparation 4

Offsite access documentation (2 in person trips, 1 certified mail) 4 Travel (7 trips) 7

Install 5 wells 50

Prepare Documentation 2 Professional I J. Leblanc Utility Locate Oversight 8

Surveying Oversight/ IDW Management 10 Prepare Documentation 6

Total Hours K.Fincham 4 S. Cobert 5 K. Turner 67 J. Leblanc 24

TOTAL LABOR 100

VEHICLE TYPE RATE UNIT USEAGE

Truck $480 Week 1 $480.00 Truck $120.00 day 4 $480.00

TOTAL VEHICLE $960.00

SUBCONTRACTOR COSTS

NAME PURPOSE UNIT COST

Site Lines Utility Clearance $600.00 PDS Drilling $29,945.00 Southeastern Surveying Survey $2,215.00 Erwin IDW disposal 25 $125.00 $3,125.00

TOTAL $35,885.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

Soil TCLP VOCs (IDW) $210.00 1 0 $210.00 Water TCLP VOCs (IDW) $205.00 1 0 $205.00 Water VOCs (IDW) $205.00 1 0 $205.00 Sample Shipping $110.00 1 0 $110.00 Ice $6.50 2 $13.00

TOTAL LAB $743.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Expendables $40.00 Days 7 $280.00

Monitor Well Installation Kit $1,300.00 Week 1 $1,300.00

TOTAL EQUIPMENT $1,580.00

Norgetown Cleaners Monitoring Well Installation

SUBTASK: Groundwater Monitoring

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

PTL/PM S. Cobert Technical Guidance 1

Professional II K. Turner Field Preparation 1

Coordinate Site Access with owner 1

Sample kit request 1

Site Preparation (collect WLs from 18 wells) 4

Sample 7 wells 10.5

Professional I J. Leblanc Prepare Documentation 6

Travel (2 trips) 2

Site Preparation (Prepare field forms, get equipment, collect WLs from 18 wells) 6

Sample 7 wells 10.5

Total Hours IDW Management 2

S. Cobert 1

K. Turner 17.5

J. Leblanc 26.5

TOTAL LABOR 45

VEHICLE TYPE RATE UNIT USEAGE

Truck $120 each 2 $240.00

TOTAL VEHICLE $240.00

SUBCONTRACTOR COSTS

NAME PURPOSE RATE UNIT USEAGE

Erwin Remediation IDW $125.00 Drum 1 $125.00

TOTAL $125.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

Groundwater VOHs 8260B $73.00 7 0 $511.00

Groundwater Alkalinity SM2320B $15.00 2 0 $30.00

Groundwater Iron 6010 $13.50 2 0 $27.00

Groundwater Nitrate 9056A $23.00 2 0 $46.00

Groundwater Sulfate 9060A $21.00 2 0 $42.00

Groundwater Total Organic Carbon 9060A $30.00 2 0 $60.00

Groundwater Dissolved Gases RSK-175 $180.00 2 0 $360.00

Microbial Insights Quantaray-Chlor Analyses $900.00 Samples 2 $1,800.00

Sample Shipping $150.00 4 0 $600.00

Ice $6.50 8 0 $52.00

TOTAL LAB $3,528.00

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

Deep Groundwater Sampling Kit $415.00 Days 2 $830.00

Expendables $40.00 Days 2 $80.00

Silicon Tubing (1/4") $3.00 foot 3 $9.00

HDPE Tubing $0.40 per foot 500 $200.00

Drum $100.00 each 1 $100.00

TOTAL EQUIPMENT $1,219.00

SUBTASK: Report

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Sr. Technical Expert S. Cobert SSAR Report - PE Review 2

Project Manager K. Fincham Prepare SSAR Report - Conclusions/Recommendation 4

Professional II K. Turner Prepare SSAR Report - Body of document 32

Professional I J. Leblanc Prepare Figures/ Tables for SSAR Report 16

Total Hours

S. Cobert 2

K.Fincham 4

K. Turner 32

J. Leblanc 16

TOTAL LABOR 54

4651 Salisbury Road, Suite 420

Jacksonville, Florida 32256 tel: 904.527.6716

June 7, 2023

Mr. Kyle McMurray Florida Department of Environmental Protection Division of Waste Management 2600 North Blair Stone Road Tallahassee, Florida 32399

Subject: Task Assignment Request – Supplemental Site Assessment

Norgetown Cleaners 4336 South Manhattan Avenue, Tampa, Hillsborough County, Florida

Dear Mr. McMurray:

CDM Smith Inc. is pleased to submit this Task Assignment Request for Supplemental Site Assessment including monitoring well installation and groundwater sampling activities at the Norgetown Cleaners (the Site) located at 4336 South Manhattan Avenue, Tampa, Hillsborough County, Florida, ERIC_4745.

The scope of work, proposed deliverable, and deliverable schedule are summarized below and the cost estimate is also attached.

This Task Assignment, when executed, shall be incorporated in, and become part of Contract No.

HW681, between the Florida Department of Environmental Protection (FDEP), and CDM Smith, Inc.

(Contractor), dated January 5, 2022, hereafter referred to as the Contract.

Project Understanding Contractor understands that FDEP is requesting well installation and groundwater monitoring services at the Norgetown Cleaners Site located in Tampa, Florida. A revised Site Assessment Report (SAR) was submitted in August 2021 that recommended installation of additional offsite monitoring wells to delineate the extent of volatile organic halogens (VOHs) in groundwater. This task assignment will fulfill the well installation and groundwater monitoring requirements and a letter report will be submitted as a Supplemental SAR (SSAR) to complete the site assessment phase at this site.

Scope of Work The proposed scope of work includes the following elements:

Subtask 1: Project Management Project management activities performed under this task generally consist of administrative functions required to maintain the project schedule, adhere to budget, and deliver the quality of the work products defined by Contractor's quality standards. Contractor's project manager will be Kara Fincham, PMP. We will prepare and submit invoices upon approval of each deliverable or milestone completion.

Project Kickoff and Progress Meetings Contractor expects a kickoff meeting or telephone conference with the FDEP to review the project status and address FDEP comments regarding the Task Assignment. Contractor will prepare meeting agendas and notes as part of this task.

Project Quality Technical Review Contractor 's Quality Management System guidelines will be followed. Internal quality reviews will be conducted on plans and on investigation findings and reports.

Project Status Reports Contractor 's Project Manager will prepare and submit monthly status reports to accompany each invoice throughout the duration of this project. The Project Manager will also discuss the status of the project with the FDEP on a bi-weekly basis until the project is complete.

Subtask 2: Baseline Groundwater Monitoring and MAGS sampling re-testing Groundwater at the site has only been sampled once in August 2020 and as discussed with FDEP, a groundwater sampling event will be performed prior to well installation to determine current conditions. Water levels will be recorded from the 13 existing monitoring wells prior to sampling.

Groundwater samples will be collected from the 13 existing monitoring wells and analyzed for VOHs by EPA Method 8260B. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity.

Well purging and sample collection will be completed in accordance with FDEP Standard Operating Procedure FS 2200. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. Contractor will employ the low-flow purge and sampling approach using a peristaltic pump and flow-through cell. A YSI-556 multi-parameter probe and a turbidimeter will be used to measure the water quality. All instrumentation will be properly calibrated and documented.

All purge water will be containerized and transferred to a Florida Department of Transportation (FDOT)-approved 55-gallon drum. Contractor assumes that less than two drums of groundwater IDW will be collected and combined with the drilling IDW to be disposed of under Subtask 3.

Modified Active Gas Sampling™ Re-Testing

MAGS testing will be performed for existing MAGS™ wells M-2, M-3, M-4, and M-5 to confirm the results collected during the 2020 SAR activities, general accordance with the Modified Active Gas Sampling Manual dated October 12, 2004, prepared by HSA Engineers & Scientists. More specifically:

To begin the MAGS testing, the Contractor will set up optimum vacuum and flow rates based on the test performed by Cardno in 2020. Using the previously determined flow rate and vacuum, a vapor sample will be collected at each MAGS™ well. The vapor samples will be collected using a 6-liter Summa canister. A purge time will be calculated based on the flow rate and estimated radius of influence, to ensure the collection of steady-state data. Vacuum and flow rate readings will be recorded, along with vacuum readings at select monitor wells and designated vacuum monitoring points, at 15-minute intervals for a total duration of one hour. Influent PID readings will also be recorded.

CDM Smith assumes that setup, testing, and breakdown for the test will require one day. Four soil gas samples will be submitted to the laboratory for TO-15 analyses with standard reporting times.

Well purging and sample collection will be completed in accordance with FDEP Standard Operating Procedure FS 2200. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. Contractor will employ the low-flow purge and sampling approach using a peristaltic pump and flow-through cell. A YSI-556 multi-parameter probe and a turbidimeter will be used to measure the water quality. All instrumentation will be properly calibrated and documented.

All purge water will be containerized and transferred to a Florida Department of Transportation (FDOT)-approved 55-gallon drum. Contractor assumes that less than two drums of groundwater IDW will be collected and combined with the drilling IDW to be disposed of under Subtask 3.

Deliverable: Field documentation, groundwater sampling logs, tables, figures, laboratory report, IDW disposal documentation, MAGS™ Field Testing Results

Technical Review and Meeting: Prior to initiating Subtask 3 monitoring well installation, CDM Smith and FDEP will perform a technical review of the groundwater data to determine the locations and depths where additional assessment is needed to complete delineation of the contaminants of concern at the site. This task includes a teleconference between CDM Smith and FDEP.

Subtask 3: Monitoring Well Installation CDM Smith proposes to install five additional monitoring wells at the locations recommended in the SAR. Monitoring wells MW-22 and MW-23 are within the site property boundary. The remaining three monitoring wells are located offsite, as summarized below, and will require offsite access agreements.

MW-19: 4315 South Manhattan Avenue, Tampa 14 Properties, LLC MW-20 and MW-21: 4300 South Manhattan Boulevard, Manhattan Baptist Church

The off-site access attempts will be secured by the following steps:

1. CDM Smith personnel will conduct a site visit up to two times to meet with the site owner and/or tenant to get a signed off-site access agreement. If the access agreement is not signed during the first two in-person visits, CDM Smith send access request letters to each applicable property owner via certified US Mail or Federal Express so receipt of the letter can be verified and placed in the project files. Each letter will include the standard FDEP language, non-Source permission to enter property forms for signature, and a proposed map that will show the location of the proposed groundwater monitoring well(s).

2. If these three attempts are unsuccessful, the FDEP will be notified and CDM Smith will relocate the proposed wells to the closest Right-of-Way (ROW) location. CDM Smith will then submit the necessary ROW permit application/maintenance of traffic plan to complete proposed groundwater monitoring well (s). CDM Smith has included provisions in this task assignment to administer the access agreements and ROW permits with the applicable property owners/parties. This process could take 1-2 months to complete.

Underground Utility Survey Contractor will subcontract utility location services to clear the boring locations prior to well drilling. In addition, Contractor will also request Sunshine 811 services to mark the public utilities.

Drilling The total well depths range from 40 feet (ft) to 100 ft below land surface (bls). Sonic drilling was used to install the monitoring wells during the site assessment and Contractor recommends using the same method for the new well installations. Continuous formation samples will be collected to the total well depth and a boring log will be recorded. Sonic 8-diameter override casing has been used at this site to install monitoring wells below a depth of approximately 35 ft bls. PFAS free water will be utilized during the well installation activities and is included in the costs provided by the Driller. The estimated cost for

PFAS free water for this scope of work was $2,375. The proposed monitoring well construction for this task assignment is summarized below.

Table 1: Proposed Monitoring Well Construction Well Override Casing Total Depth Screen Length

► MW-19 40 ft 50 ft 5 ft

► MW-20 30 ft 40 ft 5 ft

► MW-21 50 ft 60 ft 5 ft

► MW-22 90 ft 100 ft 5 ft

► MW-23 30 ft 40 ft 5 ft

Totals 240 ft 290 ft 25 ft

The monitoring wells will be completed as 2-inch diameter PVC wells. The same screen lengths installed during the site assessment will be installed for the new wells and all screens will be 5 ft long. Sand pack and a fine-grained sand seal will be installed, and the remainder of the borehole annulus grouted. The subcontractor will develop the wells following completion. The wells will be surveyed for location and elevation by a professional surveyor.

Investigation-Derived Waste (IDW) All investigation-derived waste (IDW) including soil cuttings and well development water will be containerized in FDOT approved 55-gallon drums and staged onsite. Based on the Driller proposal, the Contractor estimates 25 drums of IDW will be collected for disposal as nonhazardous waste. One soil and one water sample will be collected for disposal characterization. The soil sample will be submitted for analysis using the Toxicity characteristic leaching procedure (TCLP) for volatile organic compounds (VOCs) by EPA Method 8260. The water sample will be submitted for analysis of VOCs by EPA Method 8260.

Surveying The five new monitoring wells (MW-19, MW-20, MW-21, MW-22, and MW-23) will be surveyed by Southeastern Surveying and mapping.

Deliverable: Field documentation, offsite access agreements, boring logs, well construction details, and IDW disposal documentation

Subtask 4: Groundwater Monitoring Water levels will be recorded from the 18 monitoring wells. The five new monitoring wells (MW-19, MW-20, MW-21, MW-22, and MW-23) will be sampled and analyzed for VOHs by EPA Method 8260B. In addition, existing monitoring wells MW-11 and MW-17 will be sampled for natural attenuation parameters, as recommended in the SAR. The additional natural attenuation assessment will include the following parameters.

Alkalinity by SM2320B Iron by SW-846 Method 6010 Nitrate by Method 9056A Sulfate by Method 9056A Total organic carbon by SW846 Method 9060A Dissolved gases (methane, ethane, and ethene) by RSK-175 Degrading bacteria and functional genes by QuantArray®-Chlor

Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity.

Monitoring Procedures Well purging and sample collection will be completed in accordance with FDEP Standard Operating Procedure FS 2200. Water quality data will be collected during well purging including dissolved oxygen, pH, conductivity, oxidation-reduction potential, temperature, and turbidity. Contractor will employ the low-flow purge and sampling approach using a peristaltic pump and flow-through cell. A YSI-556 multi-parameter probe and a turbidimeter will be used to measure the water quality. All instrumentation will be properly calibrated and documented.

All purge water will be containerized and transferred to a FDOT-approved 55-gallon drum. Contractor assumes that less than one drum of IDW will be collected and combined with the drilling IDW and will require disposal under Subtask 3.

Deliverable: Field documentation, groundwater sampling logs, laboratory report, and IDW disposal documentation.

Subtask 5: Reporting

SSAR

Contractor will prepare a SSAR in letter format to document the completion of the site assessment work phase and recommend the next steps. This report will document all field activities and results and will include updated figures and data tables along with any notable exceedances and CDM Smith’s conclusions and recommendations.

Deliverable: SSAR

Subcontractors Utility Clearance Request for Quotations (RFQs) were sent out to three companies for utility clearance services and three responsive bids were received (Attachment A). The lowest cost bid was $600 from Site Lines, LLC. Site Lines, LLC is the recommended utility clearance subcontractor for this work.

Drilling RFQs were sent out to three pre-qualified drilling companies for drilling services and three responsive bids were received (Attachment A). The lowest cost bid was $29,945 from Preferred Drilling Solutions, Inc. (PDS). PDS is the recommended drilling subcontractor for this work.

Laboratory The conventional laboratory analyses will be completed by a laboratory that is a primary subcontractor for CDM Smith under HW681 using the accepted rates. The degrading bacteria and functional gene analyses are proprietary sole-source methods, and these analyses will be subcontracted to Microbial Insights, LLC.

Surveying Southeastern Surveying and Mapping is a primary subcontractor for HW681 and other bids were not solicited for this project. The total quote was $2,215 as shown in Attachment A.

IDW Disposal Rates for IDW removal and disposal were previously requested for HW681 from Erwin Remediation, Hepaco, and EnviroServe. These rates were used to assess the current IDW disposal costs for the Norgetown Cleaners site assessment. Erwin was the lowest cost and has been selected as the IDW disposal subcontractor for this project at a cost of $2,860 as shown in Attachment A.

Schedule Contractor will schedule field activities based on availability of the subcontractors upon receipt of formal notice to proceed from the FDEP.

Table 2: Deliverable Schedule Subtask 2

Due Date:

Field documentation, groundwater sampling logs, tables, figures, laboratory report, and IDW disposal documentation details August 25, 2023

Subtask 3 Due Date:

Offsite Access Form, boring logs, well construction details October 31, 2023

Subtask 4

Due Date:

Field documentation, groundwater sampling logs, laboratory report, and IDW disposal documentation November 15, 2023

Subtask 5 Due Date:

Submit SSAR January 31, 2024

CDM Smith appreciates this opportunity to work with FDEP on this contract. If you have any questions, please do not hesitate to contact us.

Sincerely, Kara Fincham, PMP Shayne Wood, P.E., BCEE Contract Manager Vice President CDM Smith, Inc. CDM Smith, Inc.

Figure

WEST WALLCRAFT AVENUE

MW-18

MW-7

MW-VEW1

SO

U

TH

M

AN

H

AT

TA

N A

VE

N

U E

MW-15

SB-7/MW-11

MW-5MW-8

MW-9

MW-17

MW-14

MW-16

MW-13MW-12

SIR SPEEDY PRINT

CENTER (UNIT 4346)

MW-22

MW-20 MW-21

MW-23

MW-19

(50'

TD)

(40' TD) (60' TD)

(100' TD)

(40' TD)

LEGEND

MONITOR WELL LOCATION

00 50'

*THIS MAP IS NOT A SURVEY

25'

FIGURE 27

PROPOSED GROUNDWATER

MONITORING WELLS

NORGETOWN CLEANERS

4336 SOUTH MANHATTAN AVENUE, TAMPA,

HILLSBOROUGH COUNTY, FLORIDA

FDEP SITE ID ERIC_4745

PROPOSED WELL DEPTH

PROPOSED MONITOR WELL LOCATION

NORGETOWN CLEANERS

(50' TD)

Attachment A Subcontractor Quotes

5/31/2023

Company

Item Est. Qty. Units Rate Total Est. Qty. Units Rate Total Est. Qty. Units Rate Total

Mobilization 1 ls $1,200.00 $1,200.00 1 lump sum $2,500.00 $2,500.00 1 lump sum $1,000.00 $1,000.00

Per Diem 4 night $450.00 $1,800.00 6 per day $675.00 $4,050.00 0 lump sum $950.00 $0.00

Sonic Rig and Crew 5 day $4,250.00 $21,250.00 6 day $5,250.00 $31,500.00 4 day $4,250.00 $17,000.00

Sonic Rig and Crew 1/2 day $3,000.00 $0.00 0 1/2 day $0.00 $0.00 0 per day $2,200.00 $0.00

8" Sonic Override Casing 180 foot $30.00 $5,400.00 0 foot $0.00 $0.00 0 per day $0.00 $0.00

Materials: 2" PVC Well Installation 290 foot $12.00 $3,480.00 290 foot $25.00 $7,250.00 290 foot $23.00 $6,670.00

2' x 2' Concrete Pad w/8" BD Completion 5 each $150.00 $750.00 5 each $152.00 $760.00 5 each $125.00 $625.00

Well Development (Up to 1/2 hour with pump) 5 each $75.00 $375.00

Fill and Stage Drums (Soil) Estimated 14 each $65.00 $910.00 20 each $105.00 $2,100.00 25 each $70.00 $1,750.00

Fill and Stage Drums (Water) Estimated 3 each $65.00 $195.00

PFAS Free Water Delivery (Up to 500 Gallons/R/T Orlando) 3 per trip $800.00 $2,400.00 1 lump sum $2,375.00 $2,375.00

Water Meter and Use (TBD Determined) each $0.00 $0.00 1 each $800.00 $800.00

Bobcat Loader for IDW and Tooling Management 1 each $1,000.00 Included

Decon Pad 1 lump sum $75.00 $75.00

Steam Cleaner 4 per day $75.00 $300.00

Permits (Not Applicable-SWFLWMD-FDEP Projects) 5 each $50.00 $250.00 1 each $150.00 $150.00

Source of PFAS Free Water office office office

$37,760.00 $49,210.00 $29,945.00

Company

Locate Utilities

Topographic Survey $2,000.00

$215.00

Company

Item Est. Qty. Units Rate Total Est. Qty. Units Rate Total Est. Qty. Units Rate Total

Transport Cost - Truck Driver $69.60/hr, Truck $76.32/hr = $146.22 2 hours $146.22 $292.44

Fee - Energy, Security, Recovery Fee $15% of total 1 Fee $843.97 $843.97 Transport Cost

< 100 mi. per drum Transport Cost

101-250 mi. per drum Transport Cost

250-400 mi. per drum

Liquid Disposal 8 Drums $125.00 $1,000.00 8 Drums $141.75 $1,134.00

Soil Disposal 20 Drums $125.00 $2,500.00 20 Drums $210.00 $4,200.00

$3,500.00 $0.00 $6,177.97

Included Not Applicable

Total Total Total

Included

Included Not Applicable

Included Not Applicable

Investigation-Derived Waste

Erwin Remediation Clark Environmental 1 Hepaco 2

Included No response - decline to bid

Total Total Total

Subcontractor Evaluation

Norgetown Drycleaners

Driller

Groundwater Protection Betts Environmental Preferred Drilling

Utility Location

Blood Hound Site Lines LLC Geoview

3.6 $852.50 $600.00 $800.00

$800.00Total $852.50 Total $600.00 Total

Surveying

Southeastern Surveying and Mapping

Survey

Equipment

Total $2,215.00

Attachment A: Subcontractor Quotes Norgetown Cleaners

Tampa, Hillsborough County, Florida

Sonic Auger DPT Injection Well Abandonment

REVISION DATE: 3/24/2023

ESTIMATE #: 622053-3

CDM Smith

PFAS Protocals

ID QTY Unit Rate TOTAL

1 1 ls 1,200.00$ 1,200.00$

2 Per Diem 4 night 450.00$ 1,800.00$

3 Sonic Rig and Crew 5 day 4,250.00$ 21,250.00$

4 Sonic Rig and Crew 1/2 day 3,000.00$ -$

5 8" Sonic Override Casing 180 foot 30.00$ 5,400.00$

6 Materials: 2" PVC Well Installation 290 foot 12.00$ 3,480.00$

7 2' x 2' Concrete Pad w/8" BD Completion 5 each 150.00$ 750.00$

8 Well Development (Up to 1/2 hour with pump) 5 each 75.00$ 375.00$

9 Fill and Stage Drums (Soil) Estimated 14 each 65.00$ 910.00$

10 Fill and Stage Drums (Water) Estimated 3 each 65.00$ 195.00$

11 PFAS Free Water Delivery (Up to 500 Gallons/R/T Orlando) 3 per trip 800.00$ 2,400.00$

12 Water Meter and Use (TBD Determined) each 1,000.00$ -$

12 Bobcat Loader for IDW and Tooling Management 1 each 1,000.00$ Included

13 Permits (Not Applicable-SWFLWMD-FDEP Projects) -$

Subtotal 37,760.00$

Todd Hodgson

Todd Hodgson TOTAL 37,760.00$ Partner

(1) 2" x 50' PVC Well w/5' of .010 Screen, 8" Temp Override Casing to 40', 8" BD Completion. Sonic Soil Sampling

Mobilization

Locations must be accessible with track mounted Sonic Rig

Damage to utilities on private property during borehole clearance are the responsibility of the client Utility Locates on Private Property are the responsibility of the client

(1) 2" x 60' PVC Well w/5' of .010 Screen, 8" Temp Override Casing to 50', 8" BD Completion. Sonic Soil Sampling

(1) 2" x 100' PVC Well w/5' of .010 Screen, 8" Temp Override Casing to 90', 8" BD Completion. Sonic Soil Sampling

THANK YOU FOR YOUR BUSINESS!

DESCRIPTION

"Actual quantities used and days onsite will be invoiced"

Completion: 4.5 to 5 days due to distance and time moving to locations

PROJECT

Norgetown Cleaners 4336 S Manhattan Avenue

Kathy R. Leggoe, PG, PMP

CUSTOMER

Project Description:

(2) 2" x 40' PVC Well w/10' of .010 Screen, 8" BD Completion. Sonic Soil Sampling

Atlanta, Ga 30328 Tampa, Florida 2100 Riveredge Parkway, Ste 1250

(404) 720-1379 Sonic Well Installation

2300 Silver Star Road, Orlando, Florida (407) 426-7885 fax (407) 426-7586

Estimate

DATE

4/25/2023

Estimate NO.

BER206071

NAME / ADDRESS

CDM Smith 2100 Riveredge Parkway Suite 1250 Atlanta, GA 30328 Attn: Thomas Duffey

Site Information:

Norgetown Cleaners 4336 South Manhattan Avenue Tampa, FL

We appreciate this opportunity and look forward to working with you on this project. TOTAL

Your National Partner in Drilling Solutions.

"In all thy ways acknowledge him, and he shall direct thy paths." Proverbs 3:6 www.bettsenv.com

DESCRIPTION UNIT QTY Unit Cost TOTAL

Scope of Work - Drill, sample & install 5 permanent monitoring wells, 240' of 8" override casing will be necessary and is included in the daily rate. All wells will be installed between 40 & 100' in depth. Well material will be 2" PVC riser with 5' of .010 screen with standard construction. All IDW will be placed in drums, all wells will be provided with the necessary development, concrete pads and manhole covers as needed Betts estimates 4 working days to complete this project.

Mobilization / Demobilization TSi Sonic Rig & Crew lump sum 1 2,500.00 2,500.00 Drill Crew Per Diem per day 6 675.00 4,050.00 Daily Rate for TSi Sonic Rig w/Crew & Equipment (each day on site) per day 6 5,250.00 31,500.00 Install 2" PVC Screen & Riser per foot 290 25.00 7,250.00 Install 2'x2' Concrete Pad & 8" Manhole each 5 152.00 760.00 Well Development (included in daily rate) per hour 5 0.00 0.00 55-Gallon Drums each 20 105.00 2,100.00 Well Permits each 5 50.00 250.00 Water Testing each 1 800.00 800.00

Client will provide a water source (Betts will transport), access to each well location.

By acceptance of this proposal and scheduling this work, you also agree to Betts T&C which include payment terms of PWP not to exceed 60 days

Cost estimate is good for 60 days

$49,210.00

Preferred Drilling Solutions, Inc.

8820 66th St, Pinellas Park, FL 33782

Ph: 727-561-7477 Fax: 727-561-9028 www.pdsflorida.com

SONIC DRILLING TECHNOLOGY QUOTE FORM

Date: 3/23/23 FAC ID#: ERIC_4745

Develop wells, drum development water

*Note: It is against PDS policy to drill in Pea Gravel. Borings in Pea Gravel will be terminated or can proceed solely at the risk of the consultant, DEP or Property Owner

Unit Unit Rate Number of Units Extended Price per day $4,250.00 4 $17,000.00 per day $3,250.00 $0.00 per foot $14.00 $0.00 per foot $23.00 290 $6,670.00 per foot $30.00 $0.00 each $125.00 $0.00 per well $125.00 5 $625.00 roundtrip $1,000.00 1 $1,000.00 per day $0.00 $0.00 each $70.00 25 $1,750.00 each $150.00 1 $150.00 lump sum $75.00 1 $75.00 per day $75.00 4 $300.00 lump sum $2,375.00 1 $2,375.00

TOTAL QUOTE PRICE $29,945.00

Notes: 1. Includes expendables, tubing, points, liners, caps, plugs, saw cuts, development, standby time.

Project No.:

Subcontract Company Name: Preferred Drilling Solutions, Inc. (727) 561-7477

Subcontract Mailing Address: 8820 66th St, Pinellas Park, FL 33782

Signature and Title of Person Submitting Quote: ___________________________________Kevin Bonacum, Estimator

MISCELLANEOUS

(2) 2" x 40' MW's with 5' .010 screen, 8" x 30' temp override casing, continuous soil sampling, drum cuttings, pad and 8" manhole

(1) 2" x 50' MW with 5' .010 screen, 8" x 40' temp override casing, continuous soil sampling, drum cuttings, pad and 8" manhole

(1) 2" x 60' MW with 5' .010 screen, 8" x 50' temp override casing, continuous soil sampling, drum cuttings, pad and 8" manhole

(1) 2" x 100' MW with 5' .010 screen, 8" x 90' temp override casing, continuous soil sampling, drum cuttings, pad and 8" manhole

PFAS Free Water required for drilling and decon

Sonic Daily Rate & Crew (up to 10 hours on site)

Sonic Half Day Rate & Crew (up to 5 hours on site)

1" PVC Well Installation (includes all materials)

2" PVC Well Installation (includes all materials) 4" PVC Well Installation (includes all materials)

Pre-Packed Well Screen (includes all materials) ID 2" 5' Length

Well Completion (includes MH w/ cover, concrete pad, and locking well cap)

Decon pad, decon tooling and equipment prior to and between boring locations with a steam cleaner, drum all IDW

Consultant Name: CDM Smith

Site Name and Location: Norgetown Cleaners 4336 S Manhattan Ave, Tampa, Hillsborough County, FL

PROPOSED SCOPE OF WORK:

Equipment Type: Geoprobe 8140LC, Geoprobe 8150LS, Terrasonic 150CC

SONIC DRILLING TECHNOLOGY

Steam Cleaner

PFAS Free Water Devilered From Lakeland

Days to Complete Scope of Work: 4

Mobilization Per Diem

DOT Approved 55-gal Drum

Permits

Decon Pad

SITE LINES LLC

Utility Locating 1143 59th Avenue North (727) 432-9482 St. Petersburg, FL 33703 bhardy@sitelinesllc.com

Kathy R. Leggoe, PG, PMP CDM Smith 4651 Slaisbury Road, Suite 240 Jacksonville, FL 32256

March 21, 2023

SITE: Norgtown Cleaners Site – Tampa, Florida PROPOSAL: 01122p

Dear Ms. Leggoe:

Thank you for contacting Site Lines LLC regarding the private utility locate at your project site. Attached is our proposal in response to your inquiry.

Please review the proposal to ensure I have accurately captured the project details.

If you agree to the proposal, including the terms and conditions, and the statement of work, please sign, initial and date where indicated. Upon signing, the proposal will serve as the Agreement of the parties as to the above-referenced Project.

If you have any questions, please feel free to contact me. I look forward to working with you.

Site Lines LLC

William L. Hardy II Geophysicist President

Enclosure

SITE LINES LLC PROPOSAL

SITE LOCATION

Norgtown Cleaners Site – 4336 South Manhattan Avenue, Tampa, FL.

PROPOSED SCOPE OF WORK

Site Lines (“Company”) will use Ground Penetrating Radar (GPR) and conventional electromagnetic (EM) pipe and cable locators to determine the location of underground utilities at the site identified by CDM Smith (“Client”). Of specific concern is the location of utilities within a 10-foot radius of 5 proposed well drilling locations.

RESULTS OF THE INVESTIGATION

The estimated depth and location of utilities identified during the investigation will be marked on the ground surface using spray paint or other method to be agreed upon by the parties. The American Public Works Association Uniform Color Codes for the marking of underground utilities will be used.

PROJECT FEE

The fee to complete the project as described within this proposal is:

Six Hundred Dollars [$600.00]

Client shall pay Company in full within thirty (30) days of the invoice date, unless the parties have agreed to another payment arrangement in writing. If during the investigation, Company determines that the goals of the project cannot be achieved with the resources available to Company, Company will notify Client as soon as reasonably possible. Under such circumstances, Company will charge Client only for time expended and materials used to date.

CLIENT REQUIREMENTS

Client is responsible for all site access, maintenance of traffic (MOT), site clearing and/or any other logistical considerations necessary to conduct the utility locate.

Client will also provide all pertinent maps of the project site, including those that show the boundaries of the utility locate, pertinent landmarks, and known utilities (if available). Company is not a substitute for Chapter 556, Florida Statutes.

Accordingly, Client is responsible for calling Sunshine State One Call of Florida

(811) before undertaking any invasive activities, whether through Company, any other entity, or on its own.

DESCRIPTION OF COMPANY INVESTIGATION AND LIMITATIONS

A GSSI SIR-4000 GPR system will be used with a 900, 400, or 270 megahertz antenna configuration depending on site conditions and desired targets. The GPR will assist in locating nonmetallic and metallic utilities. Physical surface conditions, subsurface conditions and technical limitations effect the ability of GPR to resolve targeted utilities and/or subsurface structures. Depth and/or diameter of the utility, soil type, moisture/ionic content of the soil, and electrical properties of the soil compared to that of the utility can prevent the GPR from identifying utilities at the site. The diameter of a utility cannot be determined by GPR data. Estimated depths of utilities are directly affected by soil conditions and the material of the utility. A margin of error of +/- 20-25% in depth should be expected when performing invasive activities.

An RD 8000 will be used for the EM survey. Electromagnetic induction which transmits a signal directly into the desired target and passive power detection which locates naturally occurring magnetic fields in energized lines will be identified by detecting and following the signals with a receiver. The EM survey will assist in finding only metallic utilities. The magnetic field and/or induced signal should emanate from the target in a circular geometry. When this occurs, the receiver will receive its peak signal directly above the target. However, when metallic utilities are running near each other, or there is environmental interference from fences, cars or overhead power lines, the signal can become distorted and the peak no longer can be directly over the utility. Care must be taken when doing any invasive work around the utilities. A margin of error of +/- 20-25% in depth should be expected when performing invasive activities. Company’s personnel are highly experienced and certified operators of GPR and EM pipe and cable locators.

Due to the limitations described above, when Client is working around indicated utilities, a minimum of two (2)-feet clearance from either side of the marked utility will be maintained. For absolute confirmation, Client is responsible for exposing any indicated underground utility.

Company will conduct utility investigations in accordance with the level of care and generally accepted professional practices as ordinarily exercised by members of the same profession practicing in the same locality under similar conditions.

REPRESENTATIONS AND WARRANTIES

Neither Company nor its employees or agents are licensed surveyors under Florida law, nor do they represent themselves as such. Accordingly, the work Company is to perform is not a substitute for work typically completed by a licensed surveyor.

Company specifically and expressly disclaims any liability for any type of property damage or personal injury, including but not limited to death, arising from client’s failure to determine that the services of a licensed surveyor are necessary or to retain a licensed surveyor to perform necessary services.

Limitations in technology, complexity of the physical…