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May 17, 2020
Event: Public Comment Period for a Proposed Interim Action Cleanup Plan for the 200 BP-5 and 200-PO-1 Groundwater Operable Units
Category: Comment Period / Feedback Opportunity
Event Date: May 4 – July 8

Update: This comment period has been extended until July 8, 2020. A virtual public meeting is planned for June 18, 2020 (see details below).

Public Comment Period and Public Meeting for a Proposed Interim Action Cleanup Plan for the 200-BP-5 and 200-PO-1 Groundwater Operable Units

The Tri-Party Agreement (TPA) agencies – the U.S. Department of Energy (DOE), U.S. Environmental Protection Agency (EPA), and Washington State Department of Ecology (Ecology) – are holding a 30-day public comment period on a proposed interim action cleanup plan for the 200-BP-5 and 200-PO-1 groundwater operable units in Hanford’s 200 East Area.

The proposed plan addresses areas of the groundwater contaminated with technetium-99 and uranium. The plan presents three alternatives for interim remedial action and identifies a preferred alternative. This interim action will be followed in the future by a final cleanup action for the remaining contamination. Selected remedies and corrective actions for these operable units include institutional controls, including institutional controls related to prohibiting the use of groundwater.

The comment period will run from May 4 to June 8 July 8, 2020. A virtual public meeting will be held June 18, at 5:30 p.m. To participate via GoToWebinar, please follow the instructions below:                                                                                             

Visual (presentation only):
Click the GoToWebinar link:  
ID #: 179-538-003

1. Dial +1 509-372-3087 (local) or +1 800-664-0771 (long distance)
2. Enter Conference ID: 1333# 

Please submit comments by June 8 July 8 to or by mail to:

U.S. Department of Energy
Attn: Jennifer Colborn
P.O. Box 450, H6-60
Richland, WA  99352

Copies of the proposed plan and supporting documentation are available online during the public comment period on the Hanford events calendar, in the Hanford Administrative Record, and at the Hanford Public Information Repositories. Please see the attached summary fact sheet.

Following completion of the comment period, a responsiveness summary that includes comments received with responses from the agencies will be issued with the interim record of decision.

Questions? Please contact Jennifer Colborn, at; Craig Cameron, EPA, at; or Daina McFadden, Ecology, at

If a meeting is held, please contact Jennifer Colborn at or (509) 376-5840 at least 10 working days prior to the event to request disability accommodation.

Fact Sheet



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