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Drinking Water: Docket No. 58-0108-2502

Rulemaking initiated to revert the 80 psi maximum distribution system pressure limit to its previous level.   

Status of Rulemaking

Pending rule adopted by the Board on November 13, 2025.  Effective on July 1, 2026, unless otherwise specified in the concurrent resolution.   

Overview

This rulemaking addresses public water system stakeholder concerns regarding the 80 psi maximum distribution system pressure limit contained in IDAPA 58.01.08.552.01.b.v. DEQ seeks to remedy this problem by reverting the psi requirement to its previous level of 100 psi.

On July 28, 2025, a memorandum was issued directing DEQ’s implementation of IDAPA 58.01.08.552.01.b.v. due to unintended impacts of this rule on the regulated community since its revision, effective July 1, 2024. The Department is waiving the requirement to keep static pressure in the distribution system below 80 psi in IDAPA 58.01.08.552.01.b.v. Waiver authority is provided to the Department under IDAPA 58.01.08.552.01.b.v.

Meeting Details

Method for Participating and Submitting Comments

Submit all written comments to:

Tyler Fortunati
Idaho Department of Environmental Quality
1410 North Hilton Street, Boise, ID 83706
Tyler.Fortunati@deq.idaho.gov

Notice of Rulemaking – Proposed Rule

Negotiated Rule Documents and Meeting PresentationsDate PostedDate of MeetingWritten Comment Deadline
Negotiated Rule Draft No. 2 – the revisions to this draft are highlighted in yellow.08/25/202508/07/2025The next comment period will commence upon publication of the proposed rule in the October 1, 2025 Idaho Administrative Bulletin.
Meeting Presentation08/25/202508/07/2025NA
Negotiated Rule Draft No. 107/30/202508/07/202508/14/2025
 
Comment Submitted by Date Received
Response to Comments DEQ Response 08/21/2025
Comment on Rule Draft 1 Veolia 08/10/2025
Comment on Rule Draft 1 City of Meridian 08/08/2025
Comment on Rule Draft 1 City of Kuna 08/07/2025
Comment on Rule Draft 1 City of Chubbuck 08/04/2025
Comment on Rule Draft 1 N. Kootenai Water and Sewer 07/30/2025
Comment on Rule Draft 1 EGID 07/30/2025
Comment on Rule Draft 1 City of Nampa 07/29/2025
Comment on Rule Draft 1 Keller Associates 07/29/2025
Comment on Rule Draft 1 City of Kamiah 07/29/2025
Comment on Proposed Rule IRWA 10/22/2025
Comment on Proposed Rule City of Caldwell 10/22/2025
Comment on Proposed Rule Meridian 10/20/2025
Comment on Proposed Rule Veolia 10/20/2025

Information pending.

Board of Environmental Quality Meeting
November 13, 2025 | 9 a.m. MT

No information available at this time.

No information available at this time.

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