PFAS Mitigation Timelines

• • AFFF use no longer allowed at site.

• MassDEP notified and Release Tracking Number (RTN) 4-26179 assigned.
  • Site groundwater monitoring begins.

  • • AFFF use no longer allowed at site.

County initiates voluntary groundwater treatment system

MassDEP issues Notice of Responsibility

• • Licensed Site Professional secured by the County.

200 tons of soil removed from “hot spot.”

County settles with Town of Barnstable for Hyannis Public Water Supply impacts

• • County pays Town for $2.95 Million in damages over 20-year duration.
    • Total Cost = $3.67 Million over 20-year duration (2017 to 2037), average annual cost $ 183,750
    • Reimburse Town for O&M Costs (Required through duration of treatment operation as required by regulations)

    • • Total Cost = $228,000 estimated annual cost

4,000 square foot temporary cap installed.

Fire Training Academy ceases operation in entirety.

COVID Pandemic declared, resulting in additional administrative challenges to all parties involves.

Fire Training buildings are demolished.

State Revolving Fund (SRF) Site Cap (55,000 square feet) and Stormwater Improvements

• • Total Cost = $1.4 Million over 20-year duration (FY 25 to FY 45) through SRF Loan, estimated $70,000 annual cost.

Phase II Site Assessment begins and ongoing.

• • Coordination with Town of Barnstable, Hyannis Airport, Hyannis Water District, Barnstable Fire District and Massachusetts Fish and Wildlife required given plume wide extent.

$4.2 Million American Rescue Plan Act (ARPA) funds are allocated to the FTA remediation program.

Barnstable County identifies need for $20 to $59 million for remediation obligations through the Massachusetts Contingency Plan.  Pending on Phase II Site Assessment findings, the financial obligation could increase.  The County is exploring all options available to fund the project and awaiting opportunity for additional funding through manufacturer settlement.

Barnstable County signs MassDEP Administrative Consent Order (ACO) with action items and deadlines as outlined below:

• •   Immediate Response Actions……………………….……….…. Ongoing until Phase IV Completion

• •   Phase II – Interim 6 Month Status Reports….…………….12/23, 6/24, 12/24

• •   Phase II – Comprehensive Site Assessment.………………4/30/25

• •   Phase III – Remediation Evaluation and Selection………Within 365 days of Phase II

• •   Phase IV – Remediation Design………………………………..Within 365 days of Phase III

• • Phase IV – Permanent or Temporary Solution………………3/31/28
    • Groundwater Operable Unit
    • Soil Operable Unit

    • • Flint Rock Pond Operable Unit

• •   Phase IV – Treatment System Operations, LSP Reporting………Ongoing until project closeout.

MAY 2023 – Barnstable County planning to expand existing Groundwater Treatment System under Interim Response Action (IRA).

Barnstable County appropriates $640,000 for FY 24 Treatment System O&M and Professional Services.  The County has incurred this annual expense since 2015 and anticipates similar annual expenses until site closure.