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May 6, 2022
Event: Public Comment Period for the Leak Detection System at the Liquid Effluent Retention and Effluent Treatment Facilities
Category: Comment Period / Feedback Opportunity
Event Date: March 16 - May 14, 2022

Public Comment Period on a Class 2 Permit Modification to the Hanford Dangerous Waste Permit, “Liquid Effluent Retention Facility and 200 Area Effluent Treatment Facility” chapter

The U.S. Department of Energy is holding a 60-day public comment period on a proposed Class 2 permit modification to the Hanford Dangerous Waste Permit, “Liquid Effluent Retention Facility and 200 Area Effluent Treatment Facility” chapter. This proposed permit modification is required by Liquid Effluent Retention Facility (LERF) and 200 Area Effluent Treatment Facility (ETF) Unit Specific Permit Conditions III.3.J.2, III.3.J.2.a and III.3.J.2.b. These conditions require leak-detection upgrades be made to the 4”-WTP-001-M17 waste transfer line. These permit conditions were added by a prior permit modification dated June 28, 2021.

The LERF and 200 Area ETF are mixed-waste treatment and storage units for treating liquid effluents from operating Hanford cleanup facilities. These facilities include the 242-A Evaporator and the Waste Treatment and Immobilization Plant’s Effluent Management Facility (when it becomes operational) to support treating tank waste using the Direct-Feed Low-Activity Waste approach.

The comment period runs from March 16 through May 14, 2022. A virtual public meeting will be held on April 12, 2022, at 5:30 p.m. PT. To participate via Microsoft Teams, please follow the instructions below:

Join on your computer or Teams mobile app
Click here to join the meeting  

Join with a video conferencing device
Video Conference ID: 117 565 598 6

Or call in (audio only)
(509) 931-1284 United States
(833) 633-0875 United States (Toll-free)
Phone Conference ID: 480 292 827#

Please submit any comments by May 14, electronically (preferred) or by mail to:

Washington State Department of Ecology
3100 Port of Benton Boulevard
Richland, Washington 99354

The proposed permit modification and supporting documentation is available online during the public comment period on the Hanford events calendar, the Hanford Administrative Record, and at the Hanford Public Information Repositories.

Questions? Please contact Jennifer Colborn, Hanford Mission Integration Solutions, at, or Daina McFadden, Washington State Department of Ecology, at

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