CN-370000-HW683-DC011F.pdf
PDF 995 KB Posted
- Contract number
- HW683
- Issued by
- Florida
About this file
Summary
This Task Assignment (TA Number DC011F) is a contract modification issued by the State of Florida Department of Environmental Protection (FDEP) to Geosyntec Consultants for environmental remediation services at Scott's Custom Cleaners in Safety Harbor, Pinellas County, Florida (ERIC_5307). The underlying contract is HW683. The task assignment is effective April 23, 2026, with a completion date of April 23, 2027. Key personnel include Sarah Aduwa as the FDEP Project Manager and Nick Barnes as Geosyntec's Project Manager.
Geosyntec will conduct Soil Vapor Extraction (SVE) system operation and maintenance activities for eight months, including a soil vapor rebound evaluation to assess residual volatile organic halogen mass in the vadose zone. The scope of work comprises five subtasks: project management, Quarter 5 soil vapor rebound evaluation with operation and maintenance, Quarter 6 operation and maintenance with reporting, Quarter 7 operation and maintenance with semi-annual reporting, and utilities. Deliverables include monthly O&M summary emails, quarterly soil vapor sampling analyses, and a semi-annual O&M report with system performance data and optimization recommendations. The total contract value is $34,987.96, comprised of fixed unit rate labor costs of $32,587.96 and cost reimbursement for utilities of $2,400.00. Invoice milestones are scheduled from July 15, 2026, through February 11, 2027, with estimated monthly electrical utility costs at $300 per month.
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Text version
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.
HW683
DC011F Completion April 23, 2027
This Task Assignment authorizes Geosyntec to conduct SVE Operation and Maintenance activities at Scott’s Custom Cleaners site in accordance with Geosyntec’s scope of work, cost estimate and schedule received on April 16, 2026.
Sarah Aduwa 850-245-8973 Contractor Geosyntec Contractor
Contractor Nick Barnes Contractor 813-379-4388
ERIC 5307
2454 McMullen Booth Road, Suite 205 Safety Harbor, Pinellas County, Florida 33759
Scott's Custom Cleaners
Contractor Contractor
✔ $ 32,587.96 ✔ $ 2,400.00
$ 34,987.96
Scope of Work
Geosyntec Contractor Todd Kafka
Contract Manager
Todd K. Kafka, PG (FL) Digitally signed by Todd K. Kafka, PG (FL) Date: 2026.04.23 14:41:23 -04'00'
Mubeen Darji
Mubeen Darji, P.E. Digitally signed by Mubeen Darji, P.E.
Date: 2026.04.23 12:41:49 -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
Subtask 2 - Quarter 5 – Soil Vapor Rebound Evaluation and O&M Summary Emails 07/15/2026
Subtask 3 - Quarter 6 – Monthly O&M Summary Emails 10/13/2026
Subtask 4 - Quarter 7 – Monthly O&M Summary Emails and Semi-Annual O&M Report 01/11/2027
Subtask 1, 5 - Utility Invoices and Handling Fees (8 Months) 02/11/2027
Subtask 2 - Submittal and FDEP approval of Quarter 5 – Soil Vapor Rebound Evaluation and O&M Summary Emails $ 9,136.22
Subtask 3 - Submittal and FDEP approval of Quarter 6 – Monthly O&M Summary Emails $ 8,230.36
Subtask 4 - Submittal and FDEP approval of Quarter 7 – Monthly O&M Summary Emails and Semi-Annual O&M Report $ 12,313.21
Subtask 1, 5 - Submittal and FDEP approval of Utility Invoices and Handling Fees (Cost Reimbursement for 8 Months of utilities is $2,400.00) $ 5,308.17
$ 34,987.96
HW683
DC011F
To:
From:
Date:
HW683 Contract Negotiation File Scott’s Custom Cleaners Safety arbor, Pinellas County, Florida ERIC_5307 Sarah Aduwa, Project Manager April 2 , 2026
Subject: Negotiation Summary
HW683_DC011F
This Task Assignment authorizes Geosyntec to conduct SVE Operation and Maintenance activities at Scott’s Custom Cleaners site in accordance with Geosyntec’s scope of work, cost estimate and schedule received on April 1 , 2026.
Nick Barnes is the Project Manager.
Subtask 1 – Project Management Subtask 2 and 3 – Quarter 5 and 6 O&M, and Reporting This subtask includes costs for O&M, with a soil vapor rebound evaluation as described above. The activities include soil vapor sampling and O&M, with monthly O&M email summaries to FDEP and a soil vapor rebound summary email
Subtask 4 and 5– Quarter 7 O&M, Reporting and Utilities This subtask includes costs for three months of O&M, including quarterly influent soil vapor sampling, with monthly email summaries to FDEP and the submittal of a Semi-Annual O&M Report.
The FDEP Project Manager agrees to the scope of work and final cost associated with this Task assignment. The final cost is $3 with 1 labor hours.
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LEVEL OF EFFORT/EXPENSE WORKSHEET
SITE : Scott's Custom Cleaners SUBTASK: Quarter 5 Rebound Evaluation
DATE: 1/21/2026
LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON
STAFF-TITLE WORK DESCRIPTION HOURS
Principal T. Kafka 2
Project Professional N. Barnes 11
Senior Staff Professional M. Mohr 20
TOTAL LABOR 33
VEHICLE TYPE RATE UNIT USEAGE
Truck $120.00 Day 2 $240.00 Subtotal $240.00
TOTAL VEHICLE $240.00
SUBCONTRACTOR COSTS
NAME PURPOSE COST
Utilities
$0.00 $0.00 $0.00
Subtotal $0.00
TOTAL SUB $0.00
LABORATORY COSTS
PARAMETER RATE # SAMPLES #QAQC
TO-15 Pre/Post-shutdown: Influent, VEW01 - VEW0 $200.00 10 0 $2,000.00 Subtotal $2,000.00
Shipping Large Cooler (25 to 50 lbs) $150.00 $0.00 Small Cooler (0 to 25 lbs) $110.00 2 $220.00
Subtotal $220.00
TOTAL LAB $2,220.00
EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS
Analytical Related
Water Level Meter $25.00 Day 2 $50.00 Air Sampling Canister (Summa) $33.00 Day/Each 10 $330.00
Subtotal $380.00 Expendables
$40.00 Day 2 $80.00 Subtotal $80.00
Other O&M Kit $360.00 day 2 $720.00 O&M Supplies $75.00 day 2 $150.00 Air Velocity Meter $33.00 day 2 $66.00
Subtotal $936.00
TOTAL EQUIPMENT $1,396.00
Data interpretation and path forward recommendations
Monthly O&M Events with field preparation, mobilization/demobilizaton, and soil vapor sample collection (8 hr/event x 2 events = 16 hr). Update additional analytical tables during expanded O&M (2 hrs/event x 2 event = 4 hrs)
Property/tenant owner notification for each event (0.5 hr/event x 2 events = 1 hr). O&M data interpretation and soil vapor rebound evaluation (6 hr).Prepare field O&M summaries for FDEP (2 hr/event x 2 event = 4 hr)
4/20/2026 Page 3 of 6 Subtask 2
SUBTASK: Quarter 6 O&M and Reporting
DATE: 1/21/2026
LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON
STAFF-TITLE WORK DESCRIPTION HOURS
Principal T. Kafka 1
Senior Professional
Project Professional N. Barnes
10.5
Projec Professional
Senior Staff Professional M. Mohr 28
Staff Professional
Drafter/CADD Operator
Administrative Assistant
TOTAL LABOR 40
VEHICLE TYPE RATE UNIT USEAGE
Truck $120.00 Day 3 $360.00 Subtotal $360.00
TOTAL VEHICLE $360.00
LABORATORY COSTS
PARAMETER RATE # SAMPLES #QAQC
TO-15 GAC Influent $200.00 1 0 $200.00
Subtotal $200.00 Shipping
Large Cooler (25 to 50 lbs) $150.00 1 $150.00 Small Cooler (0 to 25 lbs) $110.00 0 $0.00
Subtotal $150.00
TOTAL LAB $350.00
EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS
Analytical Related
Water Level Meter $25.00 Day 3 $75.00 Air Sampling Canister (Summa) $33.00 Day/Each 1 $33.00
Subtotal $108.00 IDW Related
Drum $100.00 Drum 0 $0.00 Subtotal $0.00
Expendables $40.00 Day 3 $120.00
Subtotal $120.00
Other O&M Kit $360.00 day 3 $1,080.00 O&M Supplies $75.00 day 3 $225.00 Air Velocity Meter $33.00 day 3 $99.00
Subtotal $1,404.00
TOTAL EQUIPMENT $1,632.00
Data interpretation and path forward recommendations
Property owner/tenant notification for O&M events (0.5 hr/event x 3 events = 1.5 hr). PE O&M data interpretation and operating conditions based on field data to evaluate system optimization (1 hr/event x 3 events = 3 hr).Prepare field O&M summaries to FDEP (2 hr/event x 3 events = 6 hr).
Monthly O&M Events with field preparation, mobilization, and demobilzation (8 hr/event x 3 events = 24 hr). Update 4 O&M tables for routine O&M visits (1 hr/event x 2 events = 2 hrs); Update additional analytical tables during expanded O&M (2 hrs/event x 1 event = 2
4/20/2026 Page 4 of 6 Subtask 3
SUBTASK: Quarter 7 O&M and Reporting
DATE: 1/21/2026
LABOR CATEGORY *PROVIDE TIME REQUIRED FOR EACH PERSON
STAFF-TITLE WORK DESCRIPTION HOURS
Principal T. Kafka 2
Senior Professional
Project Professional N. Barnes 26.5
Senior Professional M. Hensley 3
Senior Staff Professional M. Mohr 28
Staff Professional
Drafter/CADD Operator
Administrative Assistant R. Resinger 2
TOTAL LABOR 62
VEHICLE TYPE RATE UNIT USEAGE
Truck $120.00 Day 3 $360.00 Subtotal $360.00
TOTAL VEHICLE $360.00
LABORATORY COSTS
PARAMETER RATE # SAMPLES #QAQC
TO-15 GAC Influent $200.00 1 0 $200.00
Subtotal $200.00 Shipping
Large Cooler (25 to 50 lbs) $150.00 1 $150.00 Small Cooler (0 to 25 lbs) $110.00 0 $0.00
Subtotal $150.00
TOTAL LAB $350.00
EQUIPMENT ITEM RATE COSTING UNIT USEAGE TOTALS
Analytical Related
Water Level Meter $25.00 Day 3 $75.00 Air Sampling Canister (Summa) $33.00 Day/Each 1 $33.00
Subtotal $108.00 IDW Related
Drum $100.00 Drum 0 $0.00 Subtotal $0.00
Expendables $40.00 Day 3 $120.00
Subtotal $120.00
Other O&M Kit $360.00 day 3 $1,080.00 O&M Supplies $75.00 day 3 $225.00 Air Velocity Meter $33.00 day 3 $99.00
Subtotal $1,404.00
TOTAL EQUIPMENT $1,632.00
Report compilation and PDF
Data interpretation and path forward recommendations
Property owner/tenant notification for O&M events (0.5 hr/event x 3 events = 1.5 hr). PE O&M data interpretation and detemine flow rates and operating conditions based on field data to evaluate system optimization (1 hr/event x 3 events = 3 hr).Prepare field O&M summaries to FDEP (2 hr/event x 3 events = 6 hr).Prepare Semi-Annual O&M Report and PE Certification (16 hr).
Figures preparation for Semi-Annual O&M Report
Monthly O&M Events with field preparation, mobilization, and demobilzation (8 hr/event x 3 events = 24 hr). Update 4 O&M tables for routine O&M visits (1 hr/event x 2 events = 2 hrs);
Update additional analytical tables during expanded O&M (2 hrs/event x 1 event = 2 hrs)
4/20/2026 Page 5 of 6 Subtask 4
SUBTASK:
DATE: 1/21/2026
SUBCONTRACTOR COSTS
NAME PURPOSE COST
Utilities Duke Energy Estimate (8 Months) $300/month $2,400.00 $2,400.00
Duke Energy Processing Fee $20/month $160.00 $160.00 Subtotal $2,560.00
TOTAL SUB $2,560.00
4/20/2026 Page 6 of 6 Subtask 5
Regards, Sarah
Sarah Aduwa Environmental Specialist Waste Site Cleanup Section Florida Department of Environmental Protection Sarah.Aduwa@FloridaDEP.gov Office: 850-245-8973
From: Goudarzi, Mohammad <Mohammad.Goudarzi@FloridaDEP.gov> Sent: Wednesday, March 11, 2026 4:02 PM To: Aduwa, Sarah <Sarah.Aduwa@FloridaDEP.gov> Cc: Darji, Mubeen <Mubeen.Darji@FloridaDEP.gov>; Shariat, Safa <Safa.Shariat@FloridaDEP.gov> Subject: RE: Scott's Custom Cleaners, ERIC_5307 - HW683 TA DC011E - Year 1 Annual O&M Report
Hi Sarah, Please see my comments below:
1. I concur with conducting a rebound test. Additionally, I suggest sampling all SVE wells before shutting down the system and after restarting it for the test.
Acknowledged and agreed. Costs for sample collection from all SVE wells and the system in uent before and after the rebound evaluation have been included in the proposed SOW-LOE.
Additional text has been added to the report text to clarify this recommendation.
2. Geosyntec should conduct a test to verify the Radius of In uence (ROI).
Acknowledged. An ROI test was conducted upon startup, with ROIs averaging 24 feet. An additional test can be conducted in conjunction with the soil vapor rebound evaluation to verify
ROI.
3. Geosyntec should evaluate and consider active air injections to enhance the e iciency of the system.
Incorporation of active air injection may be feasible. The current system is not con gured for this, but it is expected to be possible to modify the system through the addition of an air injection blower and appurtenances, electrical components and connection, and piping to the existing manifold. I suggest waiting to evaluate further (cost procurement, etc) until implementation of the soil vapor rebound evaluation and review of the data.
4. Section 2: Correct the typographical error; "ro " should be amended to "roof."
Acknowledged, this typographical error has been corrected in the revised report.
5. Font formatting is inconsistent and should be standardized throughout the report I have gone through and have corrected any font inconsistencies found, in the revised report.
Thanks, 12802 Tampa Oaks Blvd.
Suite 151
Tampa, Florida 33637
PH 813.558.0990
www.geosyntec.com
Scotts Custom Cleaners (ERIC_5307) HW683 SOW_O&M_041626
April 16, 2026
Ms. Sarah Aduwa Florida Department of Environmental Protection 2600 Blair Stone Road Tallahassee, FL 32399-2400
Subject: Scope of Work and CEF/LOE Soil Vapor Extraction System O&M (8 Months) and Rebound Evaluation Scott’s Custom Cleaners 2454 McMullen Booth Road, Suite 205 Safety Harbor, Pinellas County, Florida 33759 FDEP Site ID No. ERIC_5307
Dear Ms. Aduwa:
Geosyntec Consultants, Inc. (Geosyntec) has prepared this proposed Scope of Work (SOW) and Level of Effort (LOE) for operation and maintenance (O&M) activities of the Soil Vapor Extraction (SVE) system at the Scott’s Custom Cleaners Site (Site) located in Safety Harbor, Florida. A cost estimating form (CEF) and LOE is provided in Attachment A.
Soil Vapor Rebound Evaluation
The proposed SOW includes implementation of a soil vapor rebound evaluation immediately upon task assignment receipt to evaluate whether residual volatile organic halogen (VOH) mass remains within the vadose zone of the Site. The rebound evaluation will involve:
Soil vapor sample collection from the total influent, along with each of the four vapor extraction wells (VEWs).
Thereafter, the system will be shut down for a minimum of 30 days. Upon restart, soil vapor samples will again be collected from the total influent and each of the VEWs.
Soil vapor samples will be collected in a Summa canister and analyzed by a fixed-based, certified laboratory by United States Environmental Protection Agency (EPA) Method TO-15. The system will remain on while the analytical results are evaluated and discussion of the results and next steps with FDEP is conducted. The radius of influence (ROI) will be verified during this period. Two additional quarters of SVE operation are proposed to be included in this Task Assignment, if necessary.
Ms. Sarah Aduwa April 16, 2026
Scotts Custom Cleaners (ERIC_5307) HW683 SOW_O&M_041626
Operation and Maintenance Activities
Geosyntec will conduct monthly O&M visits and will perform the following tasks during each monthly O&M visit:
Record vacuum, pressure, and temperature readings at the SVE blower;
Record air flow rates at the blower and vapor extraction wells (VEWs);
Document active and passive VEW operation and adjustment of active and passive
VEWs, as necessary;
Record vacuum readings at VEW01 through VEW04 and select monitoring wells;
Collect groundwater level measurements in nearby monitoring wells MW002, MW-13, MW-14;
Inspect and clean the equipment compound;
Inspect water entrainment and adjustment of VEW wellhead vacuums (if necessary) to minimize water entrainment; and Perform periodic equipment maintenance activities recommended by equipment manufacturers.
The system will be adjusted to optimize the mass recovery rates through active and passive operations of VEWs. Monthly O&M summary emails will be submitted to FDEP. Geosyntec will monitor soil vapor concentrations by collecting samples from the granular activated carbon (GAC) influent on a quarterly basis.
SVE System O&M Status Reporting
Monthly Email Summaries and a Semi-Annual Report will be prepared to document O&M activities. The O&M reports will include the following:
O&M activities performed during the reporting period;
Calculated mass of VOHs removed by the SVE system during the reporting period, and cumulative total removed since startup;
SVE system hours of operation during the reporting period;
Information regarding the depth-to-groundwater (in summary table form);
Information regarding any repairs and/or modifications made to the SVE system;
Vacuum radius of influence data (in summary table form with one set of representative data depicted graphically and Results of laboratory analyses of quarterly air samples in tabular and graphical form;
Recommendations pertaining to the continued operation and/or optimization of the SVE system (including cycling VEWs as active or passive).
Scotts Custom Cleaners (ERIC_5307) HW683 SOW_O&M_041626
Utilities
Monthly electrical utility bills have been estimated at $300 per month.
Subtask 1 – Project Management
Subtask 2 – Quarter 5 Soil Vapor Rebound Evaluation, O&M, and Reporting
This subtask includes costs for O&M, with a soil vapor rebound evaluation tas described above.
The activities include soil vapor sampling and O&M, with monthly O&M email summaries to FDEP and a soil vapor rebound summary email.
Subtask 3 – Quarter 6 O&M and Reporting
This subtask includes costs for three months of O&M, including quarterly influent soil vapor sampling, with monthly email summaries to FDEP.
Subtask 4 – Quarter 7 O&M and Reporting
This subtask includes costs for three months of O&M, including quarterly influent soil vapor sampling, with monthly email summaries to FDEP and the submittal of a Semi-Annual O&M Report.
Subtask 5 – Utilities
This subtask includes estimated costs associated with electrical utility fees for up to 8 months of system operation.
Invoice and Deliverable Schedule
The proposed invoice and deliverable schedule is as follows:
Subtask Deliverable Deliverable Due Date Invoice Amount
Quarter 5 – Soil Vapor Rebound Evaluation and O&M Summary Emails
July 15, 2026 $9,136.22
Quarter 6 – Monthly O&M Summary Emails and Semi-Annual O&M Report
October 13, 2026 $8,230.36
Scotts Custom Cleaners (ERIC_5307) HW683 SOW_O&M_041626
Quarter 7 – Monthly O&M Summary Emails and Semi-Annual O&M Report
January 11, 2027 $12,313.21
1,5 Utility Invoices and Handling Fees (8 Months) February 11, 2027 $5, Total: $34,987.96 The above schedule assumes the task assignment is issued in April 2026
CLOSURE
We appreciate the opportunity to assist FDEP with this project. Please review and contact us if you have any questions or require additional information.
Sincerely, Nicholas S. Barnes, P.E. (FL) Todd K. Kafka, P.G. (FL)
Project Engineer Senior Principal Hydrogeologist
Attachments: Attachment A – CEF-LOE
ATTACHMENT A
Cost Estimate Form and Level of Effort
File details come from the government source that posted it. Updated .