OU2 – Air Deposition Area 1

Operable Unit (OU) 2 consists of Air Deposition Area 1, south of the Erie Canal and west of the Niagara/Orleans County Line, as colored in green on the map below:

RFI Report Volume II (OU2 and OU4) was completed and approved by the Regulatory Agencies in 2009. A Corrective Measures Study (CMS) was completed in 2011. The Agencies issued its remedy decision in its Final Statement of Basis (FSOB) for Air Deposition Area#1 (OU2 and OU4) and Culvert 105 (OU5) (dated May 24, 2013) pursuant to the 1991 AOC. NYSDEC implemented the remedy between 2015 and 2020. In 2021 pursuant to the 2019 Order on Consent, FMC took over performance of OU2 remedy implementation.

NYSDEC previous announcements of work in OU2 include:

Spring 2022 Remedial Activities Announcement (click here)

Spring 2021 Remedial Activities Announcement (click here)

FMC’s Off-Site Investigation and Remediation Work Plan for 2021 (click here)

Spring 2020 OU2 Cleanup Announcement (click here)

Spring 2019 OU2 Cleanup Announcement:

Spring 2018 OU2 Cleanup Announcement:

Spring 2017 OU2 Cleanup Announcement:

Spring 2016 OU2 Cleanup Announcement:

January 2015 Announcement to Start Remedial Design in OU2:

Current Status

  • FMC conducting 2022 Off-Site Remedial Activities in the Village of Middleport, including those in OU2. Click here to view the Community Update/Fact Sheet
    on the activities.
  • NYSDEC has approved FMC’s Off-Site Investigation and Remediation Work Plan for 2022 Activities that includes advancing remediation in OU2. The Work Plan can be accessed here.
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