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Public Notice: Proposed settlement with Simplot Western Stockmen’s for Clean Water Act violations in Idaho

Proposed settlement with Simplot Western Stockmen’s for Clean Water Act violations in Idaho
How to Comment
Comments Due
June 27, 2025

Please send all written comments by email to the Regional Hearing Clerk (R10_RHC@epa.gov) within 30 days of the date of this notice.

Comments should reference docket number CWA-10-2025-0053. Be sure to include your name and address if you would like a response.

If you are unable to submit written comments by email, please call Salee Porter, Regional Hearing Clerk, at 206-553-0531.

For more information, contact Vanessa Oquendo (oquendo.vanessa@epa.gov), 206-553-0201.

Publish Date
May 28, 2025

Summary

The EPA is providing notice of a proposed administrative penalty settlement with Simplot Western Stockmen’s for violations of the Clean Water Act at its facility located in Caldwell, Idaho.

The EPA alleges that the respondent failed to comply with the EPA’s 2021 Multi-Sector General Permit (MSGP) for Stormwater Discharges Associated with Industrial Activity at its Simplot Western Stockmen’s feed mill facility. The permit covers discharges of pollutants into the lower Boise River.

Alleged violations were failure to submit quarterly visual assessments upon request, failure to properly maintain records, failure to submit timely discharge monitoring reports, and failure to maintain a stormwater pollution prevention plan according to permit requirements.

This action is being simultaneously commenced and concluded in a legal document called an expedited settlement agreement. Under the proposed agreement (see documents below), Simplot Western Stockmen’s will pay a civil penalty of $1,688.

Respondent

Simplot Western Stockmen’s
223 Rodeo Avenue
Caldwell, Idaho 83605

Legal authority

This is a Class II administrative penalty proceeding governed by Clean Water Act Section 309(g) (33 U.S.C. § 1319(g)), and the procedural rules found at 40 CFR Part 22. The requirements that apply to public comment and participation are set forth in Clean Water Act Section 309(g)(4) and 40 CFR § 22.45.

Related documents

  • Draft Expedited Settlement Agreement with Simplot Western Stockmen's (pdf) (264.69 KB, May 2025)
    EPA enforcement docket number CWA-10-2025-0053

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Last updated on May 28, 2025
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