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

DC002B Completion December 20, 2023

CDM Smith Inc. will conduct a Supplemental Site Assessment at the First Coast Cleaners site located in Jacksonville Beach, Florida. All work will be conducted in accordance with the scope of work and cost proposal submitted on March 7, 2023.

Kyle McMurray 850-245-8973 Contractor Contractor

Contractor Contractor

Contractor Contractor

Contractor

CDM Smith Inc.

CDM Smith Inc.

Shayne Wood 904-527-6703

ERIC_4535

610 North 3rd Street, Jacksonville Beach, Florida

First Coast Cleaners

✔ $ 103,860.72

$ 103,860.72

Scope of Work

Shayne Wood

Vice President

3/30/2023

Shayne Wood Digitally signed by Shayne Wood DN: C=US, E=woodsh@cdmsmith.com, CN=Shayne Wood Date: 2023.03.30 13:30:01-04'00'

Teresa Booeshaghi

Teresa Booeshaghi Digitally signed by Teresa Booeshaghi Date: 2023.03.30 11:01:15 -04'00'

3/30/2023

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

Supplemental Site Assessment Fieldwork & Project Management 07/30/2023

Supplemental Site Assessment Report 10/30/2023

Subtasks 1 and 2: Laboratory analytical results, and field documentation, data tables and paid invoices to subcontractors + Project Management $ 84,244.24

Subtask 3: Supplemental Site Assessment Report $ 19,616.48

$ 103,860.72

HW681

DC002B

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: March 8, 2023

SUBJECT: Task Assignment DC002B First Coast Cleaners

ERIC_4535

Supplemental Site Assessment

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: Groundwater Sampling, Soil Boring, and Test Pits CDM Smith personnel will collect groundwater samples from 14 monitoring wells located at the site. A round of synoptic water levels will be collected from all wells prior to sampling. Samples taken will measure dissolved oxygen, temperature, pH, oxygen reduction potential, conductivity, turbidity, and water level. All 14 groundwater samples will be analyzed for volatile organic halocarbons.

Approximately 37 soil borings will be advanced. Each soil boring will be cored with a concrete core machine prior to advancing the boring. Each soil boring will be advanced to groundwater with discrete soil samples collected at depths of 1 and 3 feet below land surface, for a total of two lab samples per boring.

Vapor extraction wells (VEWs) for MAGS testing will be installed at the locations of previous soil borings SB-21, SB-37, and SB-46. The VEWs will be installed to a terminal depth of approximately three feet bls, or one foot above the water table. The VEWs will be constructed using two feet of 2-inch diameter, 0.010-inch factory-slotted polyvinyl chloride (PVC) well screen, coupled with one foot of solid PVC riser. 20/30 graded silica sand will be placed from the bottom of the borehole to approximately 0.5 feet above the well screen, followed by 0.5 feet of neat cement grout. The VEWs will be completed within an 8-inch bolt-down flush-mount manhole.

Up to six of the proposed soil boring locations will be converted to vapor monitoring points to facilitate collection of vacuum measurements during the proposed MAGs testing activities. The VMPs will be 0.75-inch diameter PVC and installed to a terminal depth of three feet bls. Annular backfill will be the same as for the VEWs, and the VMPs will be completed with flush-mount covers. The locations of the VMPs will be determined in the field.

Geotechnical samples will be collected at select soil boring locations for engineering properties based on field observations of native soils. Three samples will be collected for sieve analysis via ASTM Method D6913 and D7928 (includes percent fines), and one sample for organic content and Atterberg limits via methods ASTM D2974 and ASTM D4318, respectively.

Two test pits will be excavated alongside the building to determine the foundation type and depth, and a preliminary structural assessment of the building will be performed to understand the building load.

Investigation derived waste (IDW) disposal is anticipated and has been accounted for under this subtask. Subcontractors for IDW disposal were chosen on a lowest-cost basis.

Subtask 3: Supplemental Site Assessment Report A Supplemental Site Assessment Report (SSAR) will be prepared to summarize the field investigation, the laboratory results and present findings and recommendations from the investigation, address data gaps, and other applicable information that will define requirements for the anticipated ISR. CDM and the FDEP confirmed on February 28, 2023, that an Access Agreement with the current real property owner of the site has been executed. Additionally, a geotechnical and structural engineer will review the data and make preliminary recommendations on safety/excavation considerations for later inclusion into the ISR plan.

CDM and the FDEP confirmed on March 8th, 2023, that an Access Agreement with the current real property owner of the site has been executed.

This work will be conducted in line with the scope of work included with CDM’s proposal, received September 15th, 2022. Documentation of the costs is included in the attached CEF, Level-of- Effort sheets, and proposal letter. The final deliverable due date is October 30th, 2023. And the completion date for the task assignment is December 20th, 2023.

The final cost total for Task Assignment HW003B is $103,860.72.

FDEP COST ESTIMATEContractor: CDM Smith, Inc.

Date: 7-Mar-23

Task #: SubTask 1 Project Management SubTask 6

Site: First Coast Cleaners SubTask 2 2 - Supplemental Site Assessment Field Work SubTask 7

Activity/Phase: SSAR SubTask 3 3 - SSAR and Geotechnical/Structural Evaluation SubTask 8

Project Manager: Clint Noble SubTask 4 SubTask 9

SubTask 5 SubTask 10

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

$60.42 Project Technical Lead/P C. Noble 44.3 44.3 $69.63 Senior Technical Expert S. Cobert 30.0 26.0 4.0 0 0 0 0 0 0 0 $60.42 Project Technical Lead/P C. Noble 40.0 32.0 8.0 0 0 0 0 0 0 0 $43.01 Professional II A. Ryan 203.0 163.0 40.0 0 0 0 0 0 0 0

$33.43 Professional I K. Profitko 40.0 0.0 40.0 0 0 0 0 0 0 0 $57.50 Sen Geotechnical PE M. Passaro 24.0 0.0 24.0 0 0 0 0 0 0 0 $33.50 Professional I L. Mueller 138.0 98.0 40.0 0 0 0 0 0 0 0

Total Hours 519.30 44.30 319.00 156.00 0 0 0 0 0 0 0

Direct Labor $23,251.93 $2,675.00 $14,037.45 $6,539.48 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Overhead 135.00% $31,390.11 $3,611.25 $18,950.56 $8,828.30 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Gen & Admin 0.00% $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Fringe 37.70% $8,765.98 $1,008.48 $5,292.12 $2,465.38 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Labor $63,408.02 $7,294.73 $38,280.13 $17,833.16 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Travel Vehicle Rental $2,160.00 $2,160.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $2,160.00 $2,160.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subcontractor (Equipment Procurement) 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) $11,325.00 $11,325.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 IDW - Erwin $770.00 $770.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Hepaco (test pits) $1,200.00 $1,200.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Utility Locate Firm $900.00 $900.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Subcontractor Subtotal $14,195.00 $14,195.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Handling Fee $1,419.50 $1,419.50 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $15,614.50 $15,614.50 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $9,699.40 $9,699.40 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping+prep $1,630.00 $1,630.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Laboratory $11,329.40 $11,329.40 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Field Expenses Expendables $1,588.00 $1,588.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $2,520.00 $2,520.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (IDW drums) $700.00 $700.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Other) $200.00 $200.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Field Expenses $5,008.00 $5,008.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Subtotal $97,519.92 $7,294.73 $72,392.03 $17,833.16 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Completion Fee $6,340.80 $729.47 $3,828.01 $1,783.32 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Total Estimated Cost $103,860.72 $8,024.20 $76,220.04 $19,616.48 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

REV: 02/03 CEF CDM Smith Page 1

SITE : First Coast Cleaners SUBTASK: 2 - Supplemental Site Assessment Field Work

DATE: 3/7/2023

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

2.1 - GW Sampling

Senior Technical Expe S. Cobert Interpretation of Lab Data Eval 4

FDEP-Directed Workplan Additions 8

PTL/PM C. Noble Prepare Field Scope of work 4

Determine Field Activities based on Field Data 4

FDEP-Directed Workplan Additions 8

Preparation of data summaries 2

Professional II A. Ryan Mobilization/Demob (2 trips) 8

Field Preparation 1

Arrange for site access with owner 2

Prepare Sample Kit Request 1

Prepare HASP 1

Sample Wells (14) 22

Preparation of data summaries 4

2.2 Soil Borings, MAGS/VMP Install, MAGS testing, and Test Pits Senior Technical Expe S. Cobert Sr. Level Data Evaluation 4

FDEP-Directed Workplan Additions 10

PTL/PM C. Noble Prepare Field Scope of work 4

FDEP-Directed Workplan Additions 10

Professional II A. Ryan Site Inspection 8

Mobilization/Demob (8 trips) 32

Field Preparation 2

Arrange for site access with owner 1

Prepare Sample Kit Request 1

Concrete Coring, Soil Borings, OVA, soil samples, MAGS/VMP wells 50

MAGS testing 10

Test Pits 20

Professional I L. Mueller Utility Locate Oversight 8

Concrete Coring, Soil Borings, OVA, soil samples, MAGS/VMP wells 50

MAGS testing 10

Test Pit 20

Field Preparation/Documentation Support for Test Pits (mapping, field data summary, etc…) 2

IDW Management 8

TOTAL LABOR 319

VEHICLE TYPE RATE UNIT USEAGE

2.1 Truck GW Sampling $120.00 days 2 $240.00

2.2 Truck Soil Borings/Well Install $480.00 week 2 $960.00

2.2 Truck Test Pits/MAGS testing $480.00 week 2 $960.00

TOTAL VEHICLE $2,160.00

SUBCONTRACTOR COSTS

NAME PURPOSE RATE UNITS USEAGE Subtotal

Hepaco Test Pits, Pavement Repair (2.2) $1,200 Per Day 1 $1,200.00

EDS, Inc. $11,325 LS 1 $11,325.00

Erwin Remediation $110 Per Drum 7 $770.00

Utility Locate Firm $900 Per Day 1 $900.00

TOTAL $14,195.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES

2.1 - Groundwater Sampling EPA 8260 for VOHs $73.00 14 $1,022.00

EPA 9060 for TOC $30.00 3 $90.00

RSK175 for volatile gasses $180.00 3 $540.00

FL-PRO for TRPH $88.00 5 $440.00

Shipping - Large Cooler $150.00 2 $300.00

Ice $6.50 4 $26.00

2.2 - Soil Borings and MAGS testing $0.00

VOHs by 8260 37 borings x 2 samples $73.00 74 $5,402.00

VOHs by 8260 5-day TAT $14.60 74 $1,080.40

Sieve 6913/7928 $130.00 3 $390.00

Atterberg 4318 $85.00 1 $85.00

Organic Content 2974 $50.00 1 $50.00

VOCs by TO-15 $200.00 3 $600.00

Shipping - Large Cooler $150.00 8 $1,200.00

Ice $6.50 16 $104.00

TOTAL LAB $11,329.40

EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS

2.1 GW Sampling

55 gal drum $100.00 per drum 1 $100.00

Shallow GW Sampling Kit $290.00 per day 2 $580.00

Silicon tubing $3.00 per foot 14 $42.00

Tubing Poly/HDPE $0.30 per foot 140 $42.00

Expendables $40.00 per day 2 $80.00

$0.00

2.2 Soil Borings- Test Pits - MAGS testing $0.00

Soil Sampling Kit (through Concrete) $940.00 per week 1 $940.00

55 gallon Drum $100.00 per drum 6 $600.00

OVA $500.00 per week 1 $500.00

Expendables $40.00 per day 6 $240.00

Survey Station $200.00 per week 1 $200.00

Encores $16.00 each 74 $1,184.00

MAGS Investigation Kit $500.00 day 1 $500.00

TOTAL EQUIPMENT $5,008.00

SITE : First Coast Cleaners SUBTASK: 3 - SSAR and Geotechnical/Structural Evaluation

DATE:

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Senior Technical ExpeS. Cobert Technical Data Evaluation for Source Characterization 4

PTL/PM C.Noble Preparation of CSM / MNA; conclusions, recommendations, PG Seal 8

Professional II A. Ryan Preparation of SSAR - body of document 40

Professional II L. Mueller Preparation of SSAR Data Tables, Summaries 40

Professional I K. Profitko Figure / Map preparation 40

Senior Professional M. Passaro Geotechnical and Structural Evaluation 24

TOTAL LABOR 156

3/7/2023

4651 Salisbury Road, Suite 420

Jacksonville, Florida 32256 tel: 904.527.6716

March 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

First Coast Cleaners

610 North 3rd Street

Jacksonville Beach, Florida

ERIC_4535

Dear Mr. McMurray:

CDM Smith Inc. (CDM Smith) is pleased to submit this Task Assignment Request for a

Supplemental Site Assessment of the First Coast Cleaners (site) located at 610 North 3rd Street, Jacksonville Beach, Florida. The site is identified by Florida Department of Environmental

Protection (FDEP) Facility ID ERIC_4535. The scope of work, proposed deliverables and deliverable schedule are summarized below to be completed in accordance with the Master

Agreement, FDEP Contract No. HW681 dated January 5, 2022.

Project Background

The former First Coast Cleaners site was located at 610 North 3rd Street in Jacksonville Beach, Florida. Prior to 1969, the facility only operated as a conventional laundry business. The site operated as a dry-cleaning facility from 1969 to 2020. Assessment activities at the site began in 2001 and limited remedial success has since been attained to approach site closure. The current site owner has indicated that as part of the planned redevelopment of the site, the current building could be demolished, or an interior excavation otherwise allowed. This would allow for excavation activities to occur at the site beneath the current building structure.

In February 2022, CDM Smith conducted site reconnaissance activity and developed a work plan based upon current site conditions. The existing soil vapor extraction (SVE) infrastructure was damaged and not in an operable condition. Additionally, the site dry-cleaning operation and equipment has been removed. The owner indicates that they are amenable to a more aggressive source removal approach as the site soils are now easily accessible. Based on correspondence between FDEP and CDM Smith, additional site assessment data is needed to prepare for an

Interim Source Removal Proposal (ISRP) and streamline the path to closure.

A Supplemental Site Assessment Workplan (SSAWP) dated March 1, 2022, was prepared by CDM Smith and submitted to FDEP. On April 7, 2022, FDEP approved the workplan with additional clarifications including that Synthetic Precipitation Leaching Procedure (SPLP) analysis will be done on all soils with concentrations between the residential and default

Mr. McMurray

FCC Proposal Final March 2023 leachability Cleanup Target Levels (CTLs). This task request is to implement the approved

SSAWP. Initially, drilling was anticipated to collect soil data. Based on the limited availability of subcontractors and scope of work, CDM Smith revised the SSAWP approach presented herein to allow for CDM Smith to self-perform to most of the field work in order to expedite project execution.

In late 2022 and early 2023, CDM Smith revised the technical approach several times under the direction of FDEP through a series of emails and conference calls. This scope reflects changes required by DEP.

Scope of Work

The proposed scope of work includes the following elements:

Subtask 1: Project Management

Project management activities performed under this task consist of those generally administrative functions required to maintain the project on schedule, within budget, and that the quality of the work products defined within this scope is consistent with CDM Smith’s quality standards. Contractor’s project manager will be Clint Noble, PG, PMP. We will prepare and submit invoices upon approval of each deliverable or milestone completion.

Project Kickoff and Progress Meetings

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

Project Resource Management

Contractor will manage, allocate, and coordinate necessary resources for completion of tasks related to the proposed field activities.

Project Quality Technical Review

Contractor’s Quality Management System guidelines will be followed. Internal quality reviews will be conducted on plans and on assessment findings and reports.

Project Status Reports

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

Subtask 2: Supplemental Site Assessment Field Work

The general scope of work is outlined in the SSAWP dated March 1, 2022, approved with comment by FDEP on April 7, 2022. The additional dataset required to proceed with remedial planning are:

1. Sampling of 14 monitoring wells for contaminants of concern and geochemical characterization parameters to establish baseline conditions.

2. Installation of shallow soil borings to characterize post-remediation concentrations of contaminants. Collection of select samples for geotechnical parameters to support excavation design.

3. Conduct two test pits to evaluate foundation conditions.

4. Install vapor extraction wells and conduct MAGS testing.

5. Evaluate geotechnical data, including a review by a Senior Geotechnical Engineer and

Structural Engineer for recommendations.

6. Conduct a teleconference with the FDEP in order to review data summaries prior to preparation of final SSA Report and necessary revisions.

Subtask 2 results will be used to define the Subtask 3 deliverable outline.

Additional details for each step of Subtask 2 are provided below:

2.1 - Groundwater Sampling. CDM Smith personnel will collect groundwater samples from 14 monitoring wells located at the site. A round of synoptic water levels will be collected from all wells prior to sampling. Samples will be collected via low flow method using a peristaltic pump and ¼ inch outer diameter high density polyethylene tubing; a YSI water quality multimeter measuring dissolved oxygen, temperature, pH, oxygen reduction potential, and conductivity; a stand-alone turbidity meter; and a water level indicator. All 14 groundwater samples will be analyzed for volatile organic halocarbons (VOHs) by United States Environmental Protection

Agency (EPA) Method 8260. At three monitoring well locations, the groundwater samples will also be submitted for analysis by EPA Method 9060 for total organic carbon and dissolved gasses (methane, ethane, and ethene). To establish baseline Underground Injection Control conditions, the groundwater samples from five of the monitoring wells will be submitted for analysis by laboratory method Florida Petroleum Residual Organic (FL-PRO) for total recoverable petroleum hydrocarbons. This UIC parameter is consistent with the application

EOSPRO. A groundwater sampling schedule is provided as Table 1. Monitor well locations are shown on attached Figure 3. All purge water will be containerized in 55-gallon drums and staged on site for pickup and disposal.

2.2 - Soil Borings and Test Pits. Prior to invasive work, a private utility locator will be used to locate utilities on the three parcels associated with this work using EM, ER, and GPR techniques. Utilities will be attempted to be located inside the former First Coast Cleaners building. CDM Smith will escort the locators and develop a map.

Approximately 37 soil borings will be advanced using a stainless-steel hand auger, a core drill, and saw cutter equipped with a generator. Each soil boring will be cored with a concrete core machine prior to advancing the boring. Each soil boring will be advanced to groundwater with discrete soil samples collected at depths of 1 and 3 feet below land surface, for a total of two lab samples per boring. The proposed soil boring locations are shown on Figures 2A and 2B. The samples will be analyzed for VOHs by EPA Method

8260. Pending laboratory results, and discussion with the FDEP, select soil samples with a concentration exceeding the default leachability will be submitted for SPLP analysis for

VOHs. The concrete slab and asphalt parking area will be repaired with concrete and asphalt patch, respectively. A saw cutter will be used to facilitate the clean patching of boreholes where appropriate. A subcontractor with expertise in pavement coring will be assist with the soil borings. A drilling subcontractor will be used to perform the concrete coring activities to facilitate the soil borings. CDM Smith estimates approximately four days will be required to complete the soil boring activities, as delays are expected due to this being an active retail facility.

Vapor extraction wells (VEWs) for MAGS testing will be installed at the locations of previous soil borings SB-21, SB-37, and SB-46, as shown on Figure 2A. The VEWs will be installed to a terminal depth of approximately three feet bls, or one foot above the water table. The actual installation depth may be adjusted based on where groundwater is encountered. The VEWs will be constructed using two feet of 2-inch diameter, 0.010-inch factory-slotted polyvinyl chloride (PVC) well screen, coupled with one foot of solid PVC riser. Each of the VEWs will be installed using a hand bucket auger. 20/30 graded silica sand will be placed from the bottom of the borehole to approximately 0.5 feet above the well screen, followed by 0.5 feet of neat cement grout. The VEWs will be completed within an 8-inch bolt-down flush-mount manhole. CDM Smith estimates that one day will be required to complete the installation of the three MAGS wells. Soil Samples will be collected during the installation of each VEW at 1 and 3 feet bls. The samples will be analyzed for VOHs by EPA Method 8260.

Up to six of the proposed soil boring locations will be converted to vapor monitoring points to facilitate collection of vacuum measurements during the proposed MAGs testing activities. The VMPs will be 0.75-inch diameter PVC and installed to a terminal depth of three feet bls. Annular backfill will be the same as for the VEWs, and the VMPs will be completed with flush-mount covers. The locations of the VMPs will be determined in the field. CDM Smith estimates that two days will be required to complete the installation of six

VMPs.

MAGS testing will be performed for each VEW in 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, a step test will be performed at VEW001, where a vacuum of approximately 15 inches of water (“H2O) will be applied. Vacuum and flow rate readings will be recorded, along with vacuum readings at select monitor wells and designated vacuum monitoring points. Influent PID readings will also be recorded. The vacuum will be increased to approximately 30 “H2O, where additional data like that specified above will be recorded. The final step will be to increase the vacuum to approximately 45 “H2O, with the final set of data recorded.

Actual vacuums applied during each step may vary based on site conditions. Each step is expected take 15 minutes, for a total of 45 minutes for the step test.

• Using the optimum flow rate and vacuum determined from the step test, vapor samples will be collected at each VEW. 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 all tests will require one day. A total of three soil gas samples will be submitted to the laboratory for TO-15 analyses with standard reporting times.

Geotechnical samples will be collected at select soil boring locations for engineering properties based on field observations of native soils. Three samples will be collected for sieve analysis via ASTM Method D6913 and D7928 (includes percent fines), and one sample for organic content and Atterberg limits via methods ASTM D2974 and ASTM

D4318, respectively. The samples will be delivered to CDM Smith’s geotechnical laboratory in Orlando, Florida. CDM Smith geotechnical lab rates are provided in the attachments. All drill cuttings will be containerized in 55-gallon drums for later disposal.

All soil boring locations will be surveyed using a GPS.

Test Pits. Two test pits will be excavated alongside the building to determine the foundation type and depth, and a preliminary structural assessment of the building will be performed to understand the building load. The test pits will be two feet long, one foot wide, and two feet deep with one test pit being completed per day. These tasks will be performed under the direction and/or supervision of a CDM Smith Senior Geotechnical

Engineer and a Structural Engineer. Soils will be evaluated for structural properties and foundation conditions photographed. The pits will be backfilled, compacted and pavement patched. A subcontractor (Hepaco) will be used to dig the pits, to assist with the installation of soil borings through pavement, and to repair asphalt and interior soil cores in pavement.

A cursory geotechnical and structural review of the soil data will be completed. The data gathered in this Subtask should be sufficient to define the lateral and vertical limits of the excavation and coupled with the engineering properties. The review will result in excavation safety recommendations for the anticipated ISR or the request for additional data to define engineering safety requirements.

A teleconference with the FDEP will be conducted to discuss the field investigation and define data quality objectives, and potential data gaps as it relates to site assessment, anticipated

ISR actions, and excavation/risk management options associated with the site. The call will outline the content of Subtask 3. CDM Smith will provide draft tables and figures in advance of this conference call for FDEP review.

Deliverables: Laboratory analytical results, and field documentation, data tables, and paid invoices to subcontractors

Subtask 3: Supplemental Site Assessment Report with Geotechnical/Structural Evaluation

A Supplemental Site Assessment Report (SSAR) will be prepared to summarize the field investigation, the laboratory results and present findings and recommendations from the investigation, address data gaps, and other applicable information that will define requirements for the anticipated ISR. The SSAR will include analytical data summaries, site maps depicting soil contamination, groundwater plume map, groundwater flow map(s), estimated quantities for ISR planning, groundwater geochemical conditions for enhanced attenuation, boring logs, and associated appendices typically required of SSARs.

Additionally, a geotechnical and structural engineer will review the data and make preliminary recommendations on safety/excavation considerations for later inclusion into the ISR plan.

Deliverable: Supplemental Site Assessment Report

Table 2: Deliverables Schedule

Subtask 2

Deliverable:

Due Date:

Supplemental Site Assessment Fieldwork

Laboratory analytical results, and field documentation, data tables and paid invoices to subcontractors

July 30, 2023

Subtask 3

Deliverable:

Due Date:

Supplemental Site Assessment Report

Supplemental Site Assessment Report

October 30, 2023

*Schedule is based on DEP giving CDM Smith NTP within 10 days of this proposal.

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

Sincerely, Approved By:

Clint Noble, P.G., PMP Shayne Wood, P.E., BCEE

Senior Project Manager Vice President CDM Smith Inc. CDM Smith Inc.

Attachments: Level of Effort/Cost Estimate Forms

Dig foundation test pits, assist CDM with soil borings, asphalt repair, concrete repair.

Test Pits

Type Duration Unit Cost Total Cost Days Cost

Daily Rate 3 1,250.00$ $3,750.00

Daily Rate 3 1,200.00$ $3,600.00

Daily Rate 3 2,450.00$ $7,350.00

Utility Locate

Type Total Cost

Flat Rate 3,305.00$

Flat Rate 900.00$

Flat Rate 1,550.00$

Drilling

Cost Item EDS* GWP PDS Preconstruction Activities $1,850.00 $2,440.00 $3,200.00

MAGS Well Installation $2,475.00 $4,292.50 $1,575.00

Vapor Monitor Point

Installation $3,300.00 $4,292.50 $2,700.00

Concrete Coring $3,700.00 $1,055.00 $11,100.00 Total: $11,325.00 $12,080.00 $18,575.00

* - Selected Contractor

Contractor

Contractor

Blood Hound

Site Lines*

Geoview

ERS

Hepaco*

Subcontractor Evaluation - Test Pit and Core Drill Support

First Coast Cleaners

Wednesday, March 1, 2023

Contractor

NDN

Sonic Auger DPT Injection Well Abandonment

DATE: 2/8/2023

ESTIMATE #: 223009

CDM Smith

ID QTY Unit Rate TOTAL

1 1 ls 800.00$ 800.00$

2 Per Diem 4 night 250.00$ 1,000.00$

3 DPT Rig and Crew 4 day 1,700.00$ 6,800.00$

4 Materials: Backfill w/Concrete Patch (CDM H/A Locations 37 each 15.00$ 555.00$

5 Materials: 1" Sch 40 PVC Well Installation (VPM) 18 foot 10.00$ 180.00$

6 Materials: 1" x 2' Prepack (VPM) 1 each 75.00$ 75.00$

7 Materials: 5" BD w/Donut Pad (Indoor VPM/MAGS 6 each 150.00$ 900.00$

8 Materials: 2" Sch 40 PVC Well Installation (MAGS) 9 foot 20.00$ 180.00$

9 2' x 2' Pad w/8" BD Completion (Outdoor VPM/MAGS) 3 each 150.00$ 450.00$

10 Well Development (Up to 1/2 hour with pump) 0 each 75.00$ -$

11 Fill and Stage Refurbished Drums (Soil) Estimated 1 each 65.00$ 65.00$

12 Fill and Stage Drums (Water) If Needed 0 each 65.00$ -$

13 Pre Drill Meeting Onsite 1 each 575.00$ 575.00$

13 Concrete Coring Machine/Generator 1 each 500.00$ 500.00$

14 Permits (Not Applicable for VMP or MAGS) -$

Subtotal 12,080.00$

Todd Hodgson

Todd Hodgson TOTAL 12,080.00$ Partner

Jacksonville, Florida Jacksonville Beach, Florida 101 Southhall Lane, Ste. 200

(502) 339-0988 Vapor Monitoring Point and MAGS Installation

Project Description:

(6) 1" x 3' PVC VMP w/2' of .010 Prepack Screen, 5" BD Completion / Donut Pad. Hand Auger (4 Indoors)

Pre Drill Site Meeting

(3) 2" x 3' PVC MAGS Well w/2' of .020 Screen, 5" BD/Completion / Donut Pad. Hand Auger (2 Indoors)

PROJECT

First Coast Cleaners 610 Third Street North

Steven Cobert, CUSTOMER

THANK YOU FOR YOUR BUSINESS!

DESCRIPTION

If you have any questions concerning this proposal contact Todd Hodgson at (407) 426-7885 at Todd@drillprollc.com.

"Actual quantities used and days onsite will be invoiced"

Completion: 2 days for VPM/MAGS Install and 2 Days Concrete Coring/Patching

(37) Concrete Cores (~6" Thick Concrete) for CDM Hand Augering Event, Concrete Patch

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

Borehole Clearance to 5’ bgs beyond 20 minutes may require a change order for additional time and costs.

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

*Please reference the Bid Specifications for a complete description of the items listed below

ITEM UNIT QUANTITY COST TOTAL

Preconstruction Activities: Includes permitting, health and safety,mobilization of equipment and manpower to the site.

EA 1

MAGS Well Installation EA 3

Vapor Monitoring Point Installation EA 6

Concrete Coring EA 37

TIME ESTIMATE

Days required for well installation days

Notes:

1. Number of drums required to be specified by drilling contractor.

COMPANY NAME

PRINT NAME TITLE

SIGNATURE DATE

QUOTE IS VALID FOR DAYS

TOTAL:

BID FORM - DRILLER

First Coast Cleaners

610 Third Street North Jacksonville Beach, Duval County, Florida

FDEP Facility ID No. ERIC_4535

3-4

1,850.00 1,850.00

825.00 2,475.00

550.00 3,300.00

100.00 3,700.00

11,325.00

3 drums

Environmental Drilling Service, Inc.

Carl Leonhardt VP of Operations

2/10/23

Cobert, Steven C.

From: Andy Moats <AMOATS@hepaco.com> Sent: Wednesday, February 8, 2023 2:52 PM To: Cobert, Steven C.

Subject: Re: First Coast Cleaners Quote

Good day, Quote is still good.

Thanks!!

Get Outlook for iOS

From: Cobert, Steven C. <cobertsc@cdmsmith.com> Sent: Wednesday, February 8, 2023 1:32:43 PM To: Andy Moats <AMOATS@hepaco.com> Subject: First Coast Cleaners Quote

HEPACO Notice: This communication is from an [EXTERNAL] sender.

If this email looks suspicious, do NOT click or open any links or attachments in the email. To report a suspicious email, click on the Phish Alert Report icon located on the Outlook menu ribbon.

Andy, Clint Noble gave me your contact info. We are submitting a revised proposal, which includes the attached quote you provided back in May 2022. The scope remains the same, but I need to see if you can issue us an updated quote, to include any cost changes, if applicable. We need to get this in petty quick, so please let me know ASAP if you have any questions. Thanks in advance.

Steve.

Steven C. Cobert, P.E.

Environmental Engineer CDM Smith 101 Southhall Lane, Suite 200 Maitland, Florida 32751

407.660.6356 office

407.756.5853 mobile

This e-mail and any attachments to it contain confidential and proprietary material of HEPACO, LLC, its affiliates or agents, and is solely for the use of the intended recipient. Any review, use, disclosure, distribution or copying of this transmittal is prohibited except by or on behalf of the intended recipient. If you have received this transmittal in error, please notify the sender and destroy this e-mail and any attachments and all copies, whether electronic or printed.

Please consider the environment before printing this email.

UNIT QUANTITY COST TOTAL

EA 1 $ 3,200.00 $ 3,200.00

EA 3 $ 525.00 $ 1,575.00

EA 6 $ 450.00 $ 2,700.00

EA 37 $ 300.00 $ 11,100.00

$ 18,575.00 days 5

120 DAYS

SIGNATURE DATE

QUOTE IS VALID FOR

Days required for well installation Notes: 1. Number of drums required to be specified by drilling contractor.

COMPANY NAME

PRINT NAME TITLE

MAGS Well Installation Vapor Monitoring Point Installation Concrete Coring

TOTAL:

TIME ESTIMATE

BID FORM - DRILLER

First Coast Cleaners 610 Third Street North

Jacksonville Beach, Duval County, Florida FDEP Facility ID No. ERIC_4535

*Please reference the Bid Specifications for a complete description of the items listed below

ITEM

Preconstruction Activities: Includes permitting, health and safety,mobilization of equipment and manpower to the site.

Preferred Drilling Solutions, Inc.

Kevin Bonacum Director of Safety & Business Development

2/14/23

Contact:

Address: Phone:

Email:

Bid Date:

Bid Type:

Item # Unit Cost Line Item Cost

1,200.00$ 1,200.00$

Authorization To Proceed

RETURN ACCEPTANCE TO:

HEPACO, LLC

Estimator:

Phone:

Email:

Conditions saw cut small area of asphalt, hand dig to expose foundation for pictures, replace soil and tamp. Install cold patch asphalt.

test pit to expose foundation

Clint NobleCDM Smith

Jacksonville

Date of Acceptance:

Customer:

5/20/2022

Industrial Services

Project Name:

Project Address:

Buyer Signature

Print Name

Additional costs related to unexpected, concealed, or unknown conditions or any delays at the project site shall be incurred by Customer. In the event that underground or above ground structures, cables, conduits, Site features, property, materials, or equipment are destroyed, damaged, or rendered inoperable during the project, HEPACO will not be held responsible. Additionally, HEPACO shall not be liable for any consequential or special damages. By signing below Customer acknowledges that they have received, reviewed, and agree to the HEPACO Terms and Conditions. In the absence of a Master Services Agreement between the Customer and HEPACO, all Terms and Conditions will be governed by the current HEPACO Form 102 – Agreement to Provide Services and the associated appendices. The terms of this agreement are effective and binding on the

Customer and HEPACO upon written execution or initiation of performance of this Agreement. Thank you for the opportunity to assist with your environmental service needs. If you require any additional information, please contact us at the below.

706-829-0145

Andy Moats

The above prices, specifications and conditions are satisfactory and hereby accepted and HEPACO is authorized to proceed.

Signature:

Buyer:

amoats@hepaco.com

Jacksonville

Description days

Estimated

Quantity

6.0

1.0

3.0

4.0

5.0

2.0

Units hand dig to foundation for pictures

For any additional work beyond the original scope of work, Time & Material (T&M) rates will apply according to the HEPACO Form No. 102 Rate Sheet.

Above noted quantities are speculative. With the exception of minimums, all billing will be based on actual quantities at the above noted Unit Costs.

Above Unit Costs are based on a non-union work force, no prevailing wages, no overtime work and no performance bond.

1,200.00$ Estimated Total

7.0

All disposal costs are based on disposal facility approval of the waste as profiled by HEPACO.

HEPACO assumes that all work will be completed in one mobilization unless otherwise noted above.

Above costs include a standard recovery fee.

Payment terms are net fourteen (14) days from the invoice date. Interest will accrue on any unpaid balances at the rate of one and one half percent (1.5%) per month or the maximum amount allowed by law, whichever is greater.

This proposal is contingent upon credit approval and valid for thirty (30) days.

All Unit Costs quoted by the hour apply portal-to-portal with a four (4) hour minimum per day.

Unit Costs quoted by the day apply up to eight (8) hours per day. After eight (8) hours per day, the day rate will be pro-rated for additional hours.

Unit Costs quoted by the day will be billed at the full day rate for any work. There will be no partial billing for partial work days.

Payment Terms

5/20/2022 3:48 PM CDM Smith 610 3rd street N Page 1 of 1

ERS Corp.

PROPOSAL

Prepared For:

CDM Smith 8381 Dix Ellis Trail Suite 400 Jacksonville, FL 32256

Proposal No: 22-0302-1 Date: 5/11/2022 Phone: (904) 527-6716

Jacksonville, FL | Little Rock, AR | Houston, TX | 800.718.5598 | www.ersfl.com

Attention: Clint Noble Email: cnoble@gfnet.com

ERS agrees to supply all the labor, equipment and materials to perform the following services at 610 3rd Street North.

Item I. Scope and Costs of Services:

Call in a 811 locate and perform test pit digging to expose the building foundation to see how it is constructed and how deep it goes. There will be some asphalt surfaces but no need patch.

Estimated Budget

Task Qty Unit Unit Cost Ext. Cost

Test Pit Digging 1 Daily $2,450.00 $2,450.00

Total Estimate $2,450.00

Note: Actual cost may be more or less than estimated extended cost. Client will be invoiced based on actual unit quantities.

Item II. Terms & Special Conditions

Terms of Payment: Invoicing Net 30 days. Otherwise, payment is due within 30 days of date of invoice.

A service charge of 1.5% per month will be applied to all past due amounts.

We appreciate the opportunity to submit this proposal. If you have any questions or require additional information, please contact John Anderson at 904-791-9992.

3740 St Johns Bluff Road South, Suite 10, Jacksonville, Florida • 904-800-2671

May 19, 2022 Via email: kinardjm@cdmsmith.com

Mr. Joseph Kinard CDM Smith 4651 Salisbury Road, Suite 420 Jacksonville, FL 32256

RE: Proposal for Test Pit to Expose Foundation 610 3rd Street North Jacksonville Beach, Duval County, Florida

Dear Mr. Kinard:

The NDN Companies (NDN) hereby submits this proposal to perform a test pit excavation at the above referenced address.

A summary of the scope of work and associated costs are listed below.

SCOPE OF WORK

At the direction and location indicated by CDM Smith, NDN will utilize a chop saw to cut the asphalt and expose the sub surface adjacent to the building. Asphalt, limerock, and soil will be hand excavated in an area estimated to be two feet long, one foot wide, and two feet deep to expose the building foundation. Once CDM Smith has performed the evaluation of the foundation, NDN will backfill the excavated soil and perform proper compaction. Cold patch asphalt will be used to finish the test pit to match the existing grade.

COST ESTIMATE

Labor ............................................................................................................................................................ $1,000.00 Support Truck ................................................................................................................................................. $150.00 Equipment and Supplies ................................................................................................................................. $100.00 Total ................................................................................................................................................ $1,250.00

NDN appreciates the opportunity to provide you with this cost proposal. If this cost proposal, which incorporates the attached general terms and conditions, meet your approval, please sign and return the authorization for NDN to proceed.

If you have any questions, please feel free to contact me at (904) 800-2671.

Sincerely, The NDN Companies

Geoff Reichold, PG Principal mailto:kinardjm@cdmsmith.com

CDM Smith GTS Laboratory 25 Industrial Avenue Chelmsford, MA 01824 Telephone: 617-452-6553 Last Updated: 1/23/2020

1. Physical Tests

1.1. Miscellaneous Tests

1.1.1. Water Content $10/Test

ASTM D2216, Moisture content determination by means of dry heat. Specimen is placed in oven at 110° ± 5°C for 16 hours. Minimum sample size should be 250 grams for particles less than 3/4” inches in diameter. For determinations on materials with larger particle diameters, contact the lab for sample size.

1.1.2. Visual-Manual Classification $30/Test

ASTM D2488, Unified Soil Classification System method applied. Classification based on visual/manual tests of fine fraction of soil. Required when Plastic and Liquid Limit determinations are not made on materials containing greater than 5% fines.

1.1.3. Plastic and Liquid Limit $75/Test

ASTM D4318, Liquid limit determined by Cassagrande Cup method, Plastic Limit determined by hand rolling. Material less than 425-µm (No. 40 Sieve) are used in determination. Sample size should allow for a minimum of 200 grams of material smaller than 425-µm. Add $10 to process sandy samples over the #40 sieve.

1.1.4. Density $50/Test

ASTM D2937, In-place density of soil by drive cylinder method. Drive cylinder should not be used in soft or organic materials. Materials that are heavily compacted may not easily be recovered by this method.

1.1.5. Specific Gravity $70/Test

ASTM D854, Specific gravity of solid material reported at 20°C. Material smaller than 4.75-mm (No. 4 Sieve) is covered by this method. Materials larger than 4.75-mm are removed and specific gravity is determined by ASTM C127. Sample size should allow for a minimum of 100 grams of material smaller than 4.75-mm.

1.1.6. Porosity $20/Test

Combining calculations with data from ASTM D854, Specific gravity and ASTM D2937 density a calculated porosity is generated and presented with the results of the other two tests

1.1.7. Penetrometer $15/Test

Undrained penetrative resistance determination of cohesive soil is by use of a pocket penetrometer.

1.1.8. Torvane $15/Test

Undrained torsional resistance determination of cohesive soil is by use of a miniature Torvane.

1.1.9. pH $20/Test

ASTM D4972, Determination of soil water pH. Material is sieved through a 2 mm screen (No.

10) and placed in a solution of distilled water and a duplicate sample is placed in 0.01 M CaCl2 for 1 hour. The resulting pH is reported to 0.1 pH units. Sample size of 100 grams is required.

Telephone: 617-452-6553 Last Updated: 1/23/2020

1.2. Gradation Tests

1.2.1. Sieve Analysis $70/Test

ASTM D6913, Determination of material gradation by mechanical sieve analysis. Standard sieve set used is comprised of the following: 3”, 2”, 1”,¾”, ½”, #4, #10, #20, #40, #60, #100, #200.

Additional sieves may be used upon request. Gradation of material smaller than 75-µm (No.

200 sieve) determined by Hydrometer method (Section 1.2.3).

1.2.2. Percent fines/passing No. 200 Sieve $45/Test

ASTM D1140, Determination of material finer than 75-µm by washing over a No. 200 sieve.

Sample size is dependent upon largest particle diameter. A minimum of 500 grams should be used for materials smaller than 3/8” in diameter. Contact the lab for sample sizes with materials containing particle diameters greater than 3/8”.

1.2.3. Hydrometer Test $70/Test

ASTM D7928, Determination of material gradation by hydrometer method. Material larger than 2 mm (No. 10 sieve) is removed and a gradation of this material can be determined by mechanical means (Section 1.2.1). Material with particle diameters smaller than 2 mm is placed in a water/dispersant suspension and gradation is determined by hydrometer measurements. Practical limits of measurements allow for the determination of material with particle diameters between 70-µm and 1-µm.

1.2.4. Combined Analysis $130/Test

ASTM D6913 & D7928, Determination of material gradation by mechanical sieve analysis (Section 1.2.1) and hydrometer method (Section 1.2.3). Sample size is dependent upon material type; contact lab for requirements.

1.2.5. Double Hydrometer $180/Test

ASTM D4221, Determination of dispersive characteristics of particles 5-µm in diameter and less. Method compares the fraction of material with diameters of 5-µm and less determined from the standard hydrometer method (ASTM D7928 Section 1.2.3) using a dispersant with the fraction of material with diameters of 5-µm and less determined from a hydrometer test without using dispersant.

1.2.6. NEW-Bulk Handling charge $25/Sample

For large bulk (bucket or combined gallon bag) samples, significantly more work goes into processing samples to prepare them for gradation and other testing.

Telephone: 617-452-6553 Last Updated: 1/23/2020

1.3. Hydraulic Conductivity Tests

1.3.1. Fixed-wall Test $165/Test

ASTM D2434, Determination of coefficient of hydraulic conductivity using a Fixed-wall Permeameter. This method is applicable to materials with less than 10% passing a No. 200 sieve. The procedure requires a relative state to compact the material to (moisture content and unit weight). If no compaction parameters are supplied, the as received moisture of the sample will be used with an appropriate compactive effort. Sample size should be at least 1 gallon.

1.3.2. Flexible Membrane Test $275/Test

ASTM D5084, Determination of coefficient of hydraulic conductivity using a Flexible-wall Permeameter. This method should be used on materials with expected hydraulic conductivities less than 1x10-3 cm/sec. Materials with hydraulic conductivities greater than 1x10-3 cm/sec should be determined with ASTM D2434 (Section 1.3.1). This method can be used on intact undisturbed samples or compacted specimens. When a compacted specimen is requested, compaction state must be supplied.

1.4. Shrinkage Test

1.4.1. Shrinkage Limit $110/Test

ASTM D4943, Determination of shrinkage factors of materials by the wax method. This method uses the portion of material with particle diameters smaller than 425-µm (No. 40 sieve).

1.5. Organic Content

1.5.1. Organic Content $50/Test

ASTM D2974, Determination of organic matter in peat or other organic soils. Material is dried in an oven at 110° ± 5°C for 16 hours and then placed into a muffle furnace at 440°C (Method C) or 750°C (Method D) for an additional 16 hours. A minimum of 250 grams of material is required. If no method is requested, Method C is used.

Telephone: 617-452-6553 Last Updated: 1/23/2020

2. Engineering Tests

2.1. Strength Tests

2.1.1. Lab…