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Comment Period

Low-Activity Waste Pretreatment System, OUG 1 permit modification

Hanford Sitewide Permit

June 22, 2020 - Aug. 7, 2020, 11:59 p.m.

We're proposing a modification to Part III of the Hanford Sitewide Permit. The proposed changes affect the dangerous waste portion for the treatment, storage, and disposal of dangerous waste. A new operating unit group will be added to this portion of the permit.

This proposed draft permit modification would add the Low-Activity Waste Pretreatment System Operating Group Unit Group 1 (LAWPS OUG 1) to the Sitewide Permit. The proposed modification provides design and construction details for phase one of the LAWPS OUG 1.

Review and comment

The modification proposal and supporting documents are on our Hanford public comment periods page.


The LAWPS OUG 1 will be operated in phases, with LAWPS Phase One as a Tank Side Cesium Removal (TSCR) unit that will operate for about five years. The first phase of the LAWPS OUG 1 will include the dangerous waste management units: Tank Side Cesium Removal (TSCR), Ion Exchange Column (IXC) Storage Pad, and the IXC Staging Area.

Proposed changes

This proposed draft permit modification will add LAWPS OUG 1 to Part III of the Sitewide Permit. The modification includes design and construction details to support the LAWPS OUG 1, Phase One. The modification includes:

  • Unit Specific draft permit conditions
  • Draft Interim Compliance Schedule
  • Addendum A, Part A Form
  • Addendum B, Waste Analysis Plan
  • Addendum C, Process Information
  • Addendum E, Security Requirements
  • Addendum F, Preparedness and Prevention
  • Addendum G, Personnel Training
  • Addendum H, Closure Plan
  • Addendum I, Inspection Plan
  • Addendum J, Contingency Plan
  • Appendices that include the necessary supporting design media (specifications, calculations, reports, and engineering drawings)

For more information, see our Nuclear Waste Program public comment page.

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Daina McFadden
3100 Port of Benton Blvd
Richland, WA 99354
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Daina McFadden
Permit Communication Specialist

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