CN-370000-HW686-DC020B.pdf

Funding Information:

Org. Code E.O.

Object Code

Budget Entity Appropriation

Category Grant # Project # Year Amount

Additional Funding Information attached on separate page.

Rev. 8/26/2020

STATE OF FLORIDA

DEPARTMENT OF ENVIRONMENTAL PROTECTION

Task Assignment This Task Assignment (TA) is entered into between the Parties named below, pursuant to Contract Number: .

1. TA Number: TA Completion Date:

TA Description:

2. Parties State of Florida Department of Environmental Protection (Department)

Department Project Manager: Department Project Manager Phone:

Contractor Name: (Contractor ) ntractor’st ’s Project Manager: ontractor’s t’s Project Manager Phone:

3. Project Number:

(If different from TA Number)

Project Location(s):

Project Name:

4. As consideration for the services rendered by Contractor under the terms of this TA, the Department shall pay the Contractor on the following bases, up to the Total TA Value as indicated below:

Fixed Price:

Fixed Unit Rate: (Extended Price)

Cost Reimbursement:

Total TA Value:

5. The Parties agree to comply with the terms and conditions of the underlying the Contract, and the following attachments which are hereby incorporated by reference:

Attachment 1:

Additional Attachments (if necessary):

IN WITNESS WHEREOF, this TA shall be effective on the last date signed below.

State of Florida Department of Environmental Protection

CONTRACTOR Department

Name:

Title: Secretary or Designee

(Authorized Signature) (Authorized Signature)

Date:

Additional signatures attached on separate page.

HW686

DC020B March 21, 2025

This Task Assignment authorizes PSI to prepare a revised Interim Source Removal

Plan for Wash Bowl in accordance with the June 14, 2024 Scope of Work and Cost Estimate.

Patrick McGrane 850-245-8899 Professional Service Industries, Inc.

Nana Westmark 813-886-1075

ERIC_5243

7104 Highway 52, Port Richey, Pasco County

Wash Bowl

$ 15,181.66

$ 15,181.66

Scope of Work

Professional Service Industries, Inc.

Mubeen Darji

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

Date: 2024.06.24 09:01:11 -04'00'

N/A

Task Assignment Notification/Change Order Deliverables and Invoice Schedule Attachment

WC TAFORM

Contract Number:

Task Assignment #:

Deliverables:

Deliverable Deliverable Due Date

Invoice Schedule:

Requirements for Invoice Submittal Amount to be Invoiced

TOTAL COST

FLORIDA DEPARTMENT OF

Environmental Protection

Bob Martinez Center

2600 Blair Stone Road Tallahassee, FL 32399-2400

Ron DeSantis Governor

Jeanette Nuñez Lt. Governor

Shawn Hamilton

Secretary

Memorandum

TO: Negotiation File Wash Bowl

Port Richey, Pasco County

ERIC_5243

FROM: Patrick McGrane, Project Manager

SUBJECT: Negotiation Summary Task Assignment DC020B (HW686)

DATE: June 19, 2024

This Task Assignment authorizes Professional Service Industry, Inc. (PSI) to prepare an Interim Source

Removal Plan for the Wash Bowl Cleaners site.

The total cost for this project is $15,181.66 with 111 total labor hours. All work is to be completed in accordance with the June 14, 2024, Scope of Work and Cost Estimate.

PSI may invoice according to the included schedule.

Subtask 1:

Project Management is automatically calculated as a percentage of total labor in accordance with

Contract HW686.

Subtask 2:

To address the FDEP�s response comments and the altered site conditions, PSI will prepare and submit a revised Interim Source Removal Plan for the proposed SVE system. This plan should address the changed conditions onsite as stated in the included scope of work. This plan should also address any questions or revisions that were raised in the FDEP�s Response to Comments Memo dated January 25, 2024.

LEVEL OF EFFORT/EXPENSE WORKSHEET

SITE : Wash Bowl ERIC_5243 SubTask 2 ISR-SVE Plan

DATE: 1/12/2023

LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON

STAFF-TITLE WORK DESCRIPTION HOURS

Senior Geologist, N Westmark Coordinate discussion for remedial system approach (Episodic vs. Cabinet vs. Remote) 1 Attend and provide insight based on experience during the discussion regarding remedial approach 1

Senior Engineer, G Robinson Attend and provide insight based on experience during the discussion regarding remedial approach 1 Evaluate data and calculations 3 Provide evaluation of text 3 Evaluate tabulated data 1 Evaluate and edit Figures 3 Sign and seal documents 1

Total Hours: 12

Project Engineer, J Newell Generate budgetary estimates for each system placement option for comparison 9 Generate lists of pros/cons of each approach 3 Attend and provide insight based on experience during the discussion regarding remedial approach 3 Travel (3 hr round trip) 3 Meet on-site with tenant/owner to evaluate equipment locations 3 Site visit to review available electric based on chosen approach review utilty interferences 1 Develop system components, trench details, SVE cross sections, system layout, 16 P&ID, electrical detail, equipment list, and components Evaluate available electrical power with system requirements 5 Prepare remediation calculations 6 Develop Tables 2 Develop specifications for subcontractors 16 Prepare RAP text 6 Prepare ISR Checklist 1

Total Hours: 74

GIS/CADD Specialist, D Grove Create and prepare final figures 12

TOTAL LABOR 100

VEHICLE TYPE RATE UNIT USEAGE

$0.00 Equipment Van / Truck $120.00 day 1 $120.00

$0.00

TOTAL VEHICLE $120.00

FINAL --7/24/96

Page 3 Wash Bowl ERIC_ 5243 ISRP Mod 0552-428094

PSI Proposal: 0552-428094 June 14, 2024

Professional Service Industries, Inc.

5801 Benjamin Center Drive, Suite 112, Tampa, FL 33634

Phone: (813) 886-1075 Fax: (813) 249-4916 www.intertek.com/building

Florida Department of Environmental Protection Waste Site Cleanup Section 2600 Blair Stone Road, MS 4520 Tallahassee, FL 32399-2400

Attention: Mr. Benjamin Grubbs, FCCM Environmental Manager Email: benjamin.grubbs@floridadep.gov

Re: Proposal for Interim Source Removal Plan Modification (Rev 1) Wash Bowl, ERIC_5243 7104 Highway 52 Port Richey, Pasco County, Florida 34667

Dear Mr. Grubbs:

Professional Service Industries, Inc. (PSI), an Intertek company, is pleased to provide the proposal contained herein to modify the design of a Soil Vapor Extraction System design as provided in an Interim Source Removal Plan and Response to Comments dated November 8, 2023 for the Wash Bowl in Port Richey, Pasco County, Florida. Included with this proposal is a brief discussion of project background, proposed scope of work, cost estimate and a proposed schedule for completion.

PROJECT BACKGROUND

The Wash Bowl is currently a dropoff facility which previously operated as a drycleaner from January 1973 to October 1996. The drycleaning equipment was reportedly removed in October 1996. The facility occupies a tenant space in the Bayonet Plaza Shopping Center in the northeast corner.

Potential receptors include a community well supplying the Tropic Breeze Mobile Home Park within ½ mile, and 37 small potable private wells within ¼ mile of the Wash Bowl. The DOH sampled the private wells and identified PCE, cDCE, and TCE in concentrations greater than the MDLs. The highest concentration of a drycleaning Constituents of Concern (COC) reported was 16 ug/L cis-1,2-DCE at 7211 Heibner Ave in 2011.

During the Site Screening prepared in March 1997, two 2 temporary wells were installed along the east and north sides of the drycleaner building which revealed 11,000 ug/L of PCE in the east side of the building, and 27 ug/L of PCE along the north side of the building.

PSI Proposal Number: 0552-428094 FDEP Wash Bowl

June 14, 2024 www.intertek.com/building

Site assessment activities were completed and submitted in Site Assessment Report in March 2022 by Chastain Skillman working as a subcontractor to PSI. The assessment consisted of soil sampling/analysis, installation and testing of MAGs wells, collection of groundwater samples on-site utilizing direct push technology (DPT), and installation and sampling of on-site DPT wells. The water table during this assessment generally occurred at depths ranging from 6 to 9 feet below land surface (bls) with a shallow flow direction toward the north.

A Modified Active Gas Survey (MAGS) test was conducted which showed PCE concentrations of 3.6 mg/m3 and 2.6 mg/m3 within the soil vapor, beneath the building near the former dryclean machine.

Groundwater wells were installed and screened from three depths: 4 to 14 ft bls, 25 to 35 ft bls, and 49 to 60 ft bls (refusal depth). The shallow zone revealed the highest concentrations of VOH ( at MW001), whereas the highest concentration of PCE in the .

The h -DCE at MW011.

Additional groundwater sampling was conducted in October 2021 which revealed levels of PFAS above the Provisional Cleanup Target Level of 70 in MW012 (105 ppt) and MW013 (108 ppt).

The groundwater plume has not been defined due to site access problems. Multiple Permission to Enter Property Agreement (Non-Source) packages were prepared and submitted to private property owners to the north and east of the site, however, to date, site access has been denied.

Discussions with the FDEP ended with a decision to proceed with an interim source removal (ISR) to start addressing site impacts from the former drycleaning operations. A soil vapor extraction (SVE) strategy was selected and PSI prepared an ISRP and subsequently responded to comments on November 8, 2023.

Subsequent to the plan generation and prior to implementation, several factors have changed with substantial impacts to the proposed plan presented in the ISRP. PSI is presenting this scope of work, cost estimate, and level of effort to redesign the SVE system proposed in the ISRP (November 8, 2023) to address the following changes.

System trailer placement was discussed with the tenant to be placed within the grass area located east of the site however this property is not owned by the subject property and prior attempts to gain site access to the adjacent property (currently occupied by AutoZone) have been unsuccessful.

Owner/Tenant have stated that trenching within the current laundromat would significantly impact business operations and alternative options have been requested.

Due to removal of trenching activities and at the request of FDEP, PSI will reduce the number of proposed SVE wells by removing previously proposed horizontal SVE wells from the design.

Reduction in Radius of Influence due to the reduction of SVE wells.

PROPOSED SCOPE OF WORK

This proposal consists of the modification of the Interim Source Removal Plan revised November 8, 2023 while still using Soil Vapor Extraction at the referenced site.

June 14, 2024 www.intertek.com/building

Specifically, the proposed scope of work consists of the following subtasks:

1. Project Management

This scope is provided for in the template worksheets.

2. Interim Source Removal Plan (ISR Plan)

The redesign of the ISR proposed SVE system will specifically address the following concerns relating to the original design.

System Placement PSI will discuss and compare and contrast the following approaches with FDEP and the Owner/Tenant.

Episodic operation Building a new SVE system made up of modular units with potential installation within a cabinet located against the main structure.

Alternative compound placement. Due to travel lanes located adjacent to the facility and required turning radii for tractor trailer deliveries and garbage truck egress, alternate compound locations may be limited to remote areas within the property. PSI will review available locations, such as within the shopping center parking lot, for consideration in comparison to the above options.

Integral Piping Installation PSI will review feasibility of installation of integral piping within the existing dropdown ceiling and subsequent wall penetrations. Based on the desired system placement, PSI will update system trenching diagrams (as necessary) to:

Remove water condensate within piping low points;

Detail exterior system connections for episodic use; and/or Detail connections for use with a cabinet style system.

Removal of Horizontal SVE wells Due to removal of trenching activities and at the request of FDEP, PSI will redesign the system to account for a reduced number of proposed SVE wells.

ROI and Vapor Monitoring Point Locations Due to a reduced number of proposed SVE wells, the resulting ROI will be reduced and the number and location of proposed Vapor Monitoring Points will need to be adjusted.

Calculations will be generated based on the re-design to provide construction details and specifications of the system based on the reduced number of SVE wells, distance between the compound and SVE wells, and revised radius of influence. Figures will include updates to the existing site plan and trench details, SVE piping cross sections, treatment system layout, process and

June 14, 2024 www.intertek.com/building instrumentation diagram (P&ID), electrical schematic, equipment list, and other components of the remediation system as necessary.

The report will include a detailed description of the remedial system, operation details, start-up testing, site schedule for O&M, tables summarizing proposed samples and analysis, and itemized cost estimates for project capital, and the implementation schedule. The design will be signed and sealed by a Professional Engineer certified in the State of Florida in accordance with Chapters 471, Florida Statues. The report will incorporate specific recommendations and provide opinions based on professional experience in order to achieve the most efficient endpoints. We understand that the

-effective method.

If applicable, the ISR Plan will evaluate and provide recommendations on the use of existing equipment available from other sites. PSI will review the available BWC remediation equipment from FDEP-owned equipment list and select an SVE system that will meet the design criteria of the Interim Source Removal Plan. Based on the available equipment, we will research the operation of said system for its performance at other FDEP sites including runtimes, troubleshooting, equipment repairs, etc.

The SVE re-design will include development of bid specifications for construction of the proposed SVE system. Bid specifications will be utilized to provide a cost estimate for implementation of the plan and to obtain subsequent funding.

COST ESTIMATE AND SCHEDULE

Wash Bowl ERIC_5243

Deliverables

Deliverables Deliverable Due Date SubTask 1 Project Management December 31, 2024 SubTask 2 ISR-SVE Plan December 31, 2024

Invoice Requirements

Requirements for Invoice Submittal Amount to be Invoiced

SubTasks 1 & 2 Interim Source Removal Plan (SVE) $15,181.66

The estimate to prepare the ISR Plan is shown on the attached Cost Estimate and Level of Effort. We anticipate approximately 10 to 14 weeks from written authorization in order to submit the ISR Plan.

June 14, 2024 www.intertek.com/building

All PSI services will be conducted in accordance with the terms and conditions contained within DEP Contract No. HW686, Waste Cleanup Program Services, dated December 21, 2021.

PSI appreciates the opportunity to be of service to the FDEP. If you have any questions, please feel free to contact us at (813) 886-1075.

Respectfully submitted, PROFESSIONAL SERVICE INDUSTRIES, INC.

Joshua S. Newell, PE Nana Westmark, PG, CHMM Senior Engineer / Contract Manager Senior Geologist

Enclosure: Cost Estimate Level of Effort

\\Tampa-fs\projects\552-Env\FDEP HW 686 Drycleaning, Main Contract\0552-428094 Wash Bowl ERIC_5243 ISRP Modification\Proposal\Wash Bowl ERIC_ 5243 ISRP Mod 0552-428094.docx