Idaho Administrative Code
Title IDAPA 58 - Environmental Quality, Department of
Rule 58.01.02 - WATER QUALITY STANDARDS
Section 58.01.02.007 - EFFECTIVE FOR CLEAN WATER ACT PURPOSES
Current through August 31, 2023
01. Alaska Rule. Water quality standards adopted and submitted to EPA since May 30, 2000, are not effective for federal Clean Water Act (CWA) purposes until EPA approves them (see 40 CFR 131.21 ). This is known as the Alaska Rule. The process for revising the Idaho water quality standards subject to EPA review and approval, while also retaining the rules effective for CWA purposes, is set out in Subsections 007.02 and 007.03. (3-31-22)
02. Existing Rule Retained for Clean Water Act Purposes Until EPA Approval of Rule Revisions. (3-31-22)
03. Previously Approved Rules. Pursuant to 40 CFR 131.21(e), previously approved rules remain in effect for CWA purposes until a replacement water quality standard is promulgated by the state and approved by EPA or a more stringent federal standard is promulgated. (3-31-22)
04. Information Regarding the Status of EPA Review. Information regarding the status of EPA review will be posted at http://www.deq.idaho.gov/epa-actions-on-proposed-standards. (3-31-22)