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Comment Period

Liquid Effluent Retention Facility

Hanford Dangerous Waste Permit modification

Feb. 3, 2020 - March 19, 2020, 12 a.m.

We're holding a 45-day public comment period, which addresses proposed modifications to the Hanford Dangerous Waste Permit for the Liquid Effluent Retention Facility (LERF) and 200 Area Effluent Treatment Facility (ETF).

Review and comment

Find the modification proposal and supporting documents on our Hanford public comment periods page.

Proposed changes

Modifications to the permit addenda include:

  • Revising the LERF and 200 Area ETF Operating Unit Group boundary to include the Waste Treatment and Immobilization Plant (WTP) to LERF Basin 42 primary transfer line.
  • Facility improvements to accommodate increased wastewater volume in support of the Direct Feed Low-Activity Waste (DFLAW) project.
  • Leak detection, closure, and inspection requirements for the new equipment.

Facility improvements include:

  • Adding a primary transfer line from the WTP to LERF Basin 42
  • Installing a brine waste load-out system inside the 200 Area ETF
  • Permitting and installation of filter drain sump tanks in the 200 Area ETF load-in station

An electronic leak detection system will be installed on the primary transfer line from WTP to the LERF Basin 42. A sight glass will also be installed at the LERF Basin 42 catch basin.

The brine load-out system will be located within building 2025E. Brine waste from the brine load-out system will be transferred into containers called totes.

The existing filter drain sump tank is located in Building 2025ED, load-in station, which is also where the new filter drain sump tank will be installed. Filter drain sump tank 59A-TK-2 is located in the east bay of 2025ED, and a similar 45-gallon sump tank, 59A-TK-3 will be installed in the west bay.


The permittees are U.S. Department of Energy, Office of River Protection, and Washington River Protection Solutions. LERF/ETF is located on the Hanford Site in Southeastern Washington. 

For more information see the Nuclear Waste Program public comment page.

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Comment online

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Comment by mail

Daina McFadden
3100 Port of Benton Blvd
Richland, WA 99354
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Daina McFadden

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