CN-370000-HW554-DC03L.pdf

DEP CONTRACT NO.

Task Assignment #: Module #: Grant #:

Contractor Name:

Contractor Representative:

DEP Contract Manager: Phone #:

DEP Site #:

Site Name:

Address(Street, City, County):

Phase:

Task Description [use additional pages if necessary]:

The Deliverable and Invoice Schedule is attached.

Final Deliverables:

Final Deliverable Due Date:

TASK ASSIGNMENT TYPE AND NOT TO EXCEED AMOUNTS:

FIXED FEE

RETAINAGE:

TOTAL TASK ASSIGNMENT VALUE: $0.00

DEP Task Manager:

DEP Contract Manager:

Contractual Authority:

Contractor Representative:

CC: Procurement Section (MS 93) Section Representative ________

TASK ASSIGNMENT NOTIFICATION FORM

COST PLUS FIXED FEE

COST REIMBURSEMENT

FIXED PRICE FEE SCHEDULE

Period of Performance:

Execution of Task Assignment through:

DEP will review the deliverables to verify that they meet the specifications of this contract and task description. DEP’s Contract Manager shall notify the Contractor of any deficiencies in the deliverable(s) and shall give the Contractor reasonable opportunity to correct noted deficiencies and provide a revised deliverable(s).

WCP TAFORM 01_18

HW554

D000 N/ADC003L

APTIM

Eric Kramer, P.E.

(850)-245-8960Melissa A Walsh

ERIC_5454

Former Brantley Cleaners

924 West State Rd. 436, Suite 1250; Altamonte Springs; Seminole County

Monitoring

This Task Assignment is for annual groundwater sampling and soil vapor sampling. APTIM will collect groundwater samples using a combination of passive diffusion bags and conventional sampling. APTIM will document all results. in a letter report Work will be performed according to the October 4, 2021 scope of work.

Groundwater and Soil Vapor Sampling Letter Report, GIS tables, ADaPT EDDs, and Project Management

04/14/2022

06/25/2022

$ 17,893.84 $ 0.00 $ 0.00 $ 0.00

$ 0.00

Melissa Walsh Digitally signed by Melissa Walsh Date: 2022.01.04 13:45:43 -05'00'

Melissa Walsh Digitally signed by Melissa Walsh Date: 2022.01.04 13:45:58 -05'00'

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

Date: 2022.01.04 17:17:46 -05'00'

Kramer, Eric K Digitally signed by Kramer, Eric K Date: 2022.01.05 09:46:57 -05'00'

$ 17,893.84

Walsh_M Highlight

Walsh_M Highlight

Walsh_M Highlight

Walsh_M Highlight

Walsh_M Highlight

Walsh_M Highlight

Walsh_M Highlight

Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment

WCP TAFORM 01-2018

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

Field documentation, Lab reports, and IDW documentation 03/14/2022

Groundwater and Soil Vapor Sampling Letter Report, GIS tables, ADaPT EDDs, and Project Management 04/14/2022

FDEP Approval of Field documentation, Lab reports, and IDW documentation:

Subtask 2 $ 9,331.97

FDEP approval of Groundwater and Soil Vapor Sampling Report, GIS tables, ADaPT EDDs, and Project Management ; Subtasks 1 & 3 $ 8,561.87

$ 17,893.84

HW554

DC003L

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 Interim Secretary

Memorandum TO: APTIM Contract File

Contract No. HW554

FROM: Melissa A Walsh, Project Manager

SUBJECT:

FAC # ERIC_ 5454

Task Assignment # DC003L Monitoring

DATE: December 14, 2021

Under this Task Assignment, APTIM will collect groundwater samples using a combination of passive diffusion bags and conventional sampling. APTIM will also collect soil vapor samples from select SVE wells. . Work will be done according to the October 4, 2021 scope of work. .

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

Subtasks 2 and 3 Groundwater and Vapor Sampling Activities:

APTIM and DEP agree to the proposed scope of work and level of effort. This subtask allows for the collection of groundwater and vapor samples using, passive diffusion bags, conventional sampling techniques, and Tedlar bags. Replacement bags will be deployed after samples have been collected.

APTIM received IDW treatment and disposal bids from Clark, Erwin, and Capital Environmental.

Erwin was selected as the lowest responsive and responsible bidder.

Reporting:

APTIM will prepare a letter report summarizing the results of the vapor and groundwater sampling field event. The report will summarize the analytical results in Tables, Figures and Text and provide conclusions and recommendations.

Documentation of costs is included in the attached CEF, Level-of-Effort sheets, and the APTIM proposal. The final deliverable due date is April 14, 2022, and the Task Assignment Completion Date is June 25, 2022.

The final cost total for DC003L is $ 17,893.84

FDEP COST ESTIMATE

Contractor: APTIM Environmental & Infrastructure, LLC

Date: 10/4/2021

Task #: HW554-DC003L ERIC_5454 SubTask 1 Project Management SubTask 6

Site: Brantley Cleaners (former) SubTask 2 2-Annual Sampling SubTask 7

Activity/Phase: Annual Sampling SubTask 3 3-Vapor Sampling SubTask 8

Project Manager: Eric Kramer SubTask 4 SubTask 9

SubTask 5 SubTask 10

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

$63.32 Client Program Manager 1 E. Kramer 8 8.1 $63.32 Engineer/Scientist 5 E. Kramer 6 2 4 0 0 0 0 0 0 0 $60.61 Engineer/Scientist 5 G. Roberts 30 26 4 0 0 0 0 0 0 0 $32.77 Engineer/Scientist 2 K. Howard 40 16 24 0 0 0 0 0 0 0 $27.18 Engineering Technician 2 B. Skipper 12 0 12 0 0 0 0 0 0 0 $31.69 Designer 2 S. Ferianc 5 3 2 0 0 0 0 0 0 0 $25.04 Tech Pub. Specialist 3 H. Vining 4 2 2 0 0 0 0 0 0 0

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

Total Hours 105 8 49 48 0 0 0 0 0 0 0

Direct Labor $4,605.51 $511.72 $2,371.97 $1,721.82 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Fringe 119.00% $5,480.56 $608.95 $2,822.64 $2,048.97 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Overhead 20.90% $962.55 $106.95 $495.74 $359.86 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Gen & Admin 32.60% $1,501.39 $166.82 $773.26 $561.31 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Total Labor $12,550.01 $1,394.44 $6,463.61 $4,691.96 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Other Direct Costs $230.28 $25.59 $118.60 $86.09 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Travel Vehicle Rental $291.00 $194.00 $97.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Mileage Costs $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Air Fare $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Per diem + Hotel $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Travel $291.00 $194.00 $97.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 (Equipment Procurement)

Subcontractor $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 (Services Procurement)

Subcontractor Drilling (Conventional) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Drilling (Non-conventional) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Mobile Laboratory $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Surveying $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

IDW $100.00 $100.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Utilities $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

$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 $100.00 $100.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Handling Fee $10.00 $10.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Subcontractor Cost $110.00 $110.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Laboratory Analytical Costs $2,258.00 $858.00 $1,400.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Fast Turnaround Charges $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Sample Shipping $104.00 $104.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Laboratory $2,362.00 $962.00 $1,400.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Cost Estimate Page 1 of 4 Copy of DC003L est

FDEP COST ESTIMATE

Contractor: APTIM Environmental & Infrastructure, LLC

Date: 10/4/2021

Task #: HW554-DC003L ERIC_5454 SubTask 1 Project Management SubTask 6

Site: Brantley Cleaners (former) SubTask 2 2-Annual Sampling SubTask 7

Activity/Phase: Annual Sampling SubTask 3 3-Vapor Sampling SubTask 8

Project Manager: Eric Kramer SubTask 4 SubTask 9

SubTask 5 SubTask 10

Totals 1 2 3 4 5 6 7 8 9 10 Field Expenses Personal Protection $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Expendables $97.50 $65.00 $32.50 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Drilling related) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Analytical related) $939.85 $714.20 $225.65 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (IDW related) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Equipment (Other) $58.20 $58.20 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Total Field Expenses $1,095.55 $837.40 $258.15 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

$16,638.84 $1,420.03 $8,685.61 $6,533.20 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Subtotal $1,255.00 $139.44 $646.36 $469.20 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 Completion Fee

Total Estimated Cost $17,893.84 $1,559.47 $9,331.97 $7,002.40 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

Cost Estimate Page 2 of 4 Copy of DC003L est

LEVEL OF EFFORT / EXPENSE WORKSHEET

SITE : Brantley Cleaners (former)

SUBTASK:

DATE: October 04, 2021

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

TITLE STAFF WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 2

Engineer/Scientist 5 G. Roberts

Engineer/Scientist 2 K. Howard

Designer 2 S. Feriac 3 Tech Pub. Specialist 3 H. Vining 2

TOTAL LABOR 49

EQUIPMENT ITEM RATE UNIT USAGE

Expendables $32.50 Day 2 $65.00 Shallow GW Sampling Kit $208.55 day 1 $208.55 Deep Groundwater Sampling Kit $349.20 Day 1 $349.20 Diffusion Sampler (2" well) $22.35 Day 7 $156.45 Well Cap, 2" $10.20 each 0 $0.00 Well Locks $3.40 each 0 $0.00 HDPE Tubing $0.25 foot 0 $0.00 55-gallon Drum $58.20 each 1 $58.20

TOTAL EQUIPMENT: $837.40

VEHICLE TYPE RATE UNIT USAGE

Automobile $68.00 Day 0 $0.00 Van or Truck $97.00 Day 2 $194.00

TOTAL VEHICLE: $194.00

PER DIEM STAFF RATE UNIT USAGE

Hotel $70.00 Day 0 $0.00 Day One leave before 06:00 AM $36.00 Day 0 $0.00 Day One Leave Between 6:00 - Noon $30.00 Day 0 $0.00 Day One leave before 6:00 PM $19.00 Day 0 $0.00 Day $36.00 Day 0 $0.00 Return Day $80.00 Day 0 $0.00

TOTAL PER DIEM: $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

EPA Method 8260 (Halos Only) $66.00 11 1 $792.00 EPA Method 8260 (Halos Only/IDW) $66.00 1 $66.00 Sample Shipping (Small cooler) $63.00 0 $0.00 Sample Shipping (large cooler) $104.00 1 $104.00

TOTAL LAB: $962.00

SUBCONTRACTOR COSTS

NAME PURPOSE Rate UNIT USAGE Tax TOTALS

Misc. Supplies Home Depot/Lowes/Equivilent $50.00 Lump 0 $0.00 $0.00 Erwin Remediation IDW Transporation and Disposal 100 Drum 1 $100.00

TOTAL SUB: $100.00

Notes: Proposed PDB Deployment into Monitoring Wells MW001, MW004, MW006, MW009, MW012, MW013 & MW016 and conventional sampling of MW005, MW007, MW010 and MW011.

Gauge 16 MW's.

2-Annual Sampling

Technical Review of Annual Report, Update Recommendations (2 hrs) Ordering Replacement Passive Sampling Bags and Laboratory Sampling Kits (2 hrs), Preparation of shallow and intermediate GW Flow Maps, Analytical Summry and Result Plume Maps (3 hrs).

Update of GW Elevation, Analytical Summary Tables (3 hrs), Letter Report Text and Preparation of Recommendations and conclusions (15 hrs). CD/Database Tables Update and Upload, ADaPT Laboratory Data Submittal (2 hrs).

Travel Preparation and Mobilization (1 hr), Round trip travel to site (3 hrs). Collect Depth to Groundwater Measurements from all wells (3 hrs). Retrieve PDB's and collect 7 samples (5 hrs).

Deploy new PDBs in each of the seven wells (2 hrs). Convention sample four wells using down hole pump (6 hrs.) Prepare chain of custody preparation, sample packaging (1 hr), sample delivery (1 hr).

Report Document Production Drafting GW Flow and Analytical Results Maps

2-AnnualGW Page 3 of 4 Copy of DC003L est

LEVEL OF EFFORT / EXPENSE WORKSHEET

SITE : Brantley Cleaners (former)

SUBTASK:

DATE: October 04, 2021

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

TITLE STAFF WORK DESCRIPTION HOURS

Engineer/Scientist 5 E. Kramer 4

Engineer/Scientist 5 G. Roberts

Engineer/Scientist 2 K. McDonald

Engineering Technician 2 B. Skipper

Designer 2 S. Feriac 2 Tech Pub. Specialist 3 H. Vining 2

TOTAL LABOR 48

EQUIPMENT ITEM RATE UNIT USAGE

Expendables $32.50 Day 1 $32.50 Air Flow Meter $17.50 day 1 $17.50 Regenerative Blower $92.15 Day 1 $92.15 Portable Generator (15-25 kw) $116.00 Day 1 $116.00 Well Cap, 2" $10.20 each 0 $0.00 Well Locks $3.40 each 0 $0.00 HDPE Tubing $0.25 foot 0 $0.00 55-gallon Drum $58.20 each 0 $0.00

TOTAL EQUIPMENT: $258.15

VEHICLE TYPE RATE UNIT USAGE

Automobile $68.00 Day 0 $0.00 Van or Truck $97.00 Day 1 $97.00

TOTAL VEHICLE: $97.00

PER DIEM STAFF RATE UNIT USAGE

Hotel $70.00 Day 0 $0.00 Day One leave before 06:00 AM $36.00 Day 0 $0.00 Day One Leave Between 6:00 - Noon $30.00 Day 0 $0.00 Day One leave before 6:00 PM $19.00 Day 0 $0.00 Day $36.00 Day 0 $0.00 Return Day $80.00 Day 0 $0.00

TOTAL PER DIEM: $0.00

LABORATORY COSTS

PARAMETER RATE # SAMPLES #QAQC

EPA Method TO-15 (VOC Soil Vapor) $200.00 7 0 $1,400.00 EPA Method 8260 (Halos Only) $66.00 0 0 $0.00 Sample Shipping (Small cooler) $63.00 0 $0.00 Sample Shipping (large cooler) $104.00 0 $0.00

TOTAL LAB: $1,400.00

SUBCONTRACTOR COSTS

NAME PURPOSE Rate UNIT USAGE Tax TOTALS

Misc. Supplies Home Depot/Lowes/Equivilent $50.00 Lump 0 $0.00 $0.00 Erwin Remediation IDW Transporation and Disposal 100 Drum 0 $0.00

TOTAL SUB: $0.00

Vapor samples for laboratory analysis from SVE wells VE01B, VE02B, VE04B, VE05B, VE06B, VE02A and VE05C.

Preparation and loadout of MAGS test apparatus (2), Mobilization and Travel round trip (2 hrs), Reconfigure existing piping to perform vapor sampling at 7 existing wells for analysis (8 hrs.)

Drafting vapor analytical maps Vapor Report Document Production

3-Vapor Sampling

Technical Review of Vapor Report, Update Recommendations (4 hrs) Oversight of Field Activities and Review of MAGS Analytical Data and Field Notes (2 hrs), CD/Database Tables Update for Air Samples and Upload, (2 hrs).

Preparation and loadout of MAGS test apparatus (2), Mobilization and Travel round trip (2 hrs), Reconfigure existing piping to perform vapor sampling at 7 existing wells for analysis (8 hrs.), Chain of custody preparation, Sample Packaging, Sample Drop-off for Delivery (2 hrs). Upload data and preparation of vapor sample analytical results Maps, Data Tables (4 hrs), Preparation of Vapor Report Text summarizing results (6 hrs).

3-Vapor Sampling Page 4 of 4 Copy of DC003L est

Item Description Units Unit Price Total

Amount Units Unit Price Total

Amount Units Unit Price Total

Amount Transporation Disposal (soil) 0 $0.00 0 $0.00 0 $0.00 Disposal (liquid) 1 $90.00 $90.00 1 $380.00 $380.00 1 $100.00 $100.00 Additional Costs/Fees 1 $50.00 $50.00 1 $100.00 $100.00

Total $140.00 $480.00 $100.00

Clark Environmental Safety-Kleen

Included in Disposal

None

Erwin Remediation

Included in Disposal

IDW Pickup and Disposal Bid Summary Former Brantley Dry Cleaners.

924 West State Road 436, Ste 1250 Altamonte Springs, Florida 32714

FDEP Site No. ERIC_5454 (Former FAC ID #599500158)

Included in Disposal

Roberts, Gregg

From: Bright, Thomas Gary <Thomas.Bright@safety-kleen.com> Sent: Wednesday, May 19, 2021 7:38 AM To: Roberts, Gregg Subject: RE: Request for Quotation for Non-Hazardous IDW T&D – Altamonte Springs Dry Cleaner

EXTERNAL SENDER

Good morning Greg. All of the locations you sent me would be handled out of the Sanford branch except the Jupiter location. But in all the cases this will cover them. This quote is just an estimate pending analysis and profile approval.

Profile fee ‐ $100.00 Per location Non haz disposal‐ $380.00 per drum

Again this is just an estimate pending analysis.

Thanks Thomas

Please visit our online store: www.store.safety‐kleen.com

Thomas Bright / Account Manager | Safety‐Kleen | Sanford Florida| A Clean Harbors Company| thomas.bright@safety‐kleen.com Direct Cell‐ 407‐212‐5152 |(f) 407‐321‐0065

Safety Starts with Me: Live It 3‐6‐5

From: Roberts, Gregg <Gregg.Roberts@aptim.com> Sent: Tuesday, May 18, 2021 7:29 PM To: Bright, Thomas Gary <Thomas.Bright@safety‐kleen.com> Subject: FW: Request for Quotation for Non‐Hazardous IDW T&D – Altamonte Springs Dry Cleaner

Hello Thomas, the below email is being forwarded to you based on Nicole’s email response.

GREGG ROBERTS, PG

Project Manager

APTIM | ENVIRONMENT & SUSTAINABILITY

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

From: Roberts, Gregg Sent: Monday, May 17, 2021 7:13 PM To: Vitale, Nicole M <Nicole.Vitale@safety‐kleen.com> Subject: Request for Quotation for Non‐Hazardous IDW T&D – Altamonte Springs Dry Cleaner

Roberts, Gregg

From: Erwin Remediation <erwinremediation@gmail.com> Sent: Tuesday, May 18, 2021 8:03 AM To: Roberts, Gregg Subject: Re: Request for Quotation for Non-Hazardous IDW T&D – Altamonte Springs Dry Cleaner

EXTERNAL SENDER

Gregg, This will be $100.00 per drum.

If possible, please take a composite sample of the entire drum.

Thank you, Jonathan Erwin Erwin Remediation, Inc.

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

On Mon, May 17, 2021 at 6:13 PM Roberts, Gregg <Gregg.Roberts@aptim.com> wrote:

Hello Jonathan:

I need an estimate to include in a proposal to pick‐up and dispose of non‐hazardous liquid which will be generated during upcoming groundwater sampling activities at the following site:

Here are the site specifics:

Altamonte Springs Dry Cleaners (Former)

478 East Altamonte Drive

Altamonte Springs, Florida 32701

ERIC_5459 (Former FAC ID# 599500541)

Proposed Scope of Work Annual Groundwater Sampling & Vapor Sampling Former Brantley Cleaners Task Assignment DC003L ERIC_5454 (Former Facility ID No. 599500158) Aptim Environmental & Infrastructure, Inc. (APTIM) 10/4/21

The former Brantley Cleaners facility, located in Altamonte Springs, has an installed SVE remedial system that was turned off because the drycleaning facility continued to use a solvent based cleaning process. Recently, the facility switched to a petroleum-based cleaning process and FDEP is considering re-activating the SVE remedial system. Groundwater sampling has continued on an annual basis after the remedial system was turned off. This Task Assignment (DC003L) provides for collecting vapor samples at five Zone B, one Zone A and one Zone C SVE wells and the collection and sampling of seven (7) Passive Diffusion Bags (PDB’s) (currently installed in wells) and four wells to be conventionally sampled. APTIM proposes to document the results of vapor and groundwater sampling in one report.

Subtask 2 Annual Groundwater Sampling: The proposed scope of work includes the collection of depth to groundwater measurements from the 16 monitor wells (MW001 through MW016). Groundwater samples will be collected from the 7 existing monitoring wells containing the PDB bags (MW001, MW004, MW009, MW013, and MW016; and intermediate wells MW006 and MW012) for analysis by EPA Method 8260 for volatile organic halocarbons (VOHs). The current PDBs were deployed in these seven wells on November 18, 2020. In addition, four monitoring wells (MW005, MW007, MW010 and MW-011) are to be conventionally sampled using downhole pumps with disposable tubing. Groundwater intrinsic values will not be collected from the monitoring wells using PDB’s; however, intrinsic measurements from the four conventionally sampled wells will be collected on this sampling event.

Seven replacement PDB samplers will be obtained from ALS Environmental (ALS), a licensed manufacturer of passive diffusion samplers and will be placed within the wells at similar depths as the existing samplers. The PDB samplers deployed into 2-inch diameter monitoring wells MW004, MW006, MW009, MW012, and MW013 are 24 inches long and 1 ¼ inches in diameter.

The PDB samplers deployed into the smaller 1-inch diameter monitoring wells MW001 and MW016 are 48 inches long and ¾ inches in diameter. The samplers will be ordered pre-filled with approximately 220 milliliters of certified, laboratory-grade, analyte-free, deionized water.

The PDB’s will be deployed similar to the current bags to the following total depths:

1) MW001, (1” well), total depth of 35 ft bls (placement from 31 to 35 ft bls)

2) MW004, (2” well) total depth of 34 ft bls (placement from 32 to 34 ft bls)

3) MW006, (2” well) total depth of 71 ft bls (placement from 69 to 71 ft bls)

4) MW009, (2” well) total depth of 51 ft bls (placement from 49 to 51 ft bls)

5) MW012, (2” well) total depth of 71 ft bls (placement from 69 to 71 ft bls)

6) MW013, (2” well) total depth of 51 ft bls (placement from 49 to 51 ft bls)

7) MW016, (1” well), total depth of 34 ft bls (placement from 30 to 34 ft bls).

Subtask 3 Vapor Sampling: During system operation no discrete vapor sample analysis was performed; therefore, the selection of sampling SVE wells is somewhat subjective. However, based on discussions with FDEP, Zone B SVE wells were selected as these wells should capture contaminant vapors at the base of Zone A and top of Zone C. Zone A consists of nonconsolidated fine grained sands which are more readily remediated using vapor extraction, whereas deeper lithologies exhibit interbedded clayey fine sands. This subtask authorizes collection of vapor samples for laboratory analysis from five SVE wells (VE01B, VE02B, VE04B, VE05B and VE06B) constructed in Depth Interval B (8-18 feet below land surface). In addition, review of the Site Assessment Report (SAR) identified specific locations where addition vapor sampling should be performed. APTIM recommends collection of vapor samples from VE02A and VE05C. Each of the SVE wells are routed back to the remedial compound in dedicated piping runs. Since the well heads are difficult to access and attach a vacuum hose, APTIM will disconnect the vacuum piping at the remedial trailer and connect to a vacuum blower. After connecting the vacuum blower to the dedicated piping for the specific SVE well a vacuum pressure of 45 inches water column vacuum will be induced for five minutes. This should be sufficient time to fully evacuate the pipe and extract subsurface vapors. The vapor samples will be collected in Tedlar® bags and shipped to a NELAC accredited laboratory for analysis using modified EPA Method TO 15.

Vapor & Groundwater Sampling Summary

Sample I.D. Parameters Method Rationale

MW001 VOH EPA Method 8620 Existing PDB sample location

MW004 VOH EPA Method 8620 Existing PDB sample location

MW006 VOH EPA Method 8620 Existing PDB sample location

MW009 VOH EPA Method 8620 Existing PDB sample location

MW012 VOH EPA Method 8620 Existing PDB sample location

MW013 VOH EPA Method 8620 Existing PDB sample location

MW016 VOH EPA Method 8620 Existing PDB sample location

MW005 VOH EPA Method 8620 Shallow well downgradient of source, last sampled 8/31/12

MW007 VOH EPA Method 8620 Shallow well downgradient of source, last sampled 8/31/12

MW010 VOH EPA Method 8620 Shallow well downgradient of source, last sampled 1/31/07

MW011 VOH EPA Method 8620 Shallow well downgradient of source, last sampled 1/31/07

VE01B VOH Modified TO15 Location near floor crack potential migration conduit

VE02B VOH Modified TO15 Near DC machine

VE04B VOH Modified TO15 SAR reported high concentrations this location DP016

VE05B VOH Modified TO15 SAR reported high concentrations this location DP018

VE06B VOH Modified TO15 SAR reported high concentrations this location DP016

VE02A VOH Modified TO15 SAR reported high concentrations this location and depth

VE05C VOH Modified TO15 Near DC machine, SAR reported high concentrations DP004

Reporting and Schedule: APTIM will prepare a report summarizing the results of the vapor and groundwater sample collection analysis. The report will summarize the analytical results in Tables, Figures and Text and provide conclusions and recommendations. APTIM recommends the following project schedule:

Description Due Date

Collection of GW Samples and Deployment of PDBs 12/10/21

Collection of vapor sampling 12/10/21

Submit Letter Report 1/14/22

Submit GIS/Data Base Update 1/14/22

Task Expiration Date 3/25/22

APTIM proposes to perform this scope of work in accordance with the terms and conditions of the contract executed between APTIM Environmental & Infrastructure, LLC and Florida Department of Environmental Protection No. HW554. APTIM will begin the proposed scope of work upon issuance of the Task Assignment Notification.

If you have any questions, please contact us for clarification.