The Department of Environmental Quality proposed to readopt, with amendments, the Department Circular DEQ-8 Montana Standards for Subdivision Storm Water Drainage. The standards would, among other things, clarify stormwater drainage design standards for subdivisions, exclude subdivisions crossing large drainageways, introduce new methods for determining retention pond sizes and culvert requirements, update terminology and calculations for facility volumes, and establish minimum distance requirements for stormwater facilities. A hearing will be held July 8, 2024.

The Department of Environmental Quality proposed amendments to regulations governing the incorporation by reference of federal air quality regulations. The amendments would update references to the Code of Federal Regulations and the U.S. Code, including, among other things, incorporating the North American Industry Classification System of 2022, reflecting the transfer of rulemaking authority from the Board of Environmental Review to the Department, and aligning with current industry standards and EPA guidelines. Comments are due July 8, 2024.

The Department of Energy and Environmental Protection adopted amendments to regulations governing the use, control, and possession of ionizing radiation. The amendments update the regulatory framework concerning the use, control, and possession of ionizing radiation for consistency with current technologies and federal standards and repeal outdated existing regulations.

The Department of Public Health and Environment adopted amendments to regulations governing solid and hazardous waste commission fees. The amendments do not change the amounts of the annual commission fees, but change the regulations to reflect the 2024-2025 fiscal year. See https://www.sos.state.co.us/CCR/Upload/AGORequest/AdoptedRules02024-00188.rtf.

The Department of Public Health and Environment adopted amendments to regulations governing the remediation of closed solid waste landfills. The amendments establish how the Department will administer the grant program for the remediation of closed solid waste landfills owned by eligible local governments in Colorado. See https://www.sos.state.co.us/CCR/Upload/AGORequest/AdoptedRules02024-00189.docx.

The Department of Environmental Conservation proposed amendments to regulations governing state water quality standards. The amendments would clarify that, in addition to use of the Guidance for the Implementation of Natural Condition-Based Water Quality Standards to establish water quality-based effluent limits, the Department may establish water quality-based effluent limits for groundwater discharges based on the monitoring and corrective action requirements set out under Alaska Admin. Code tit. 18, ch. 60. Comments are due July 12, 2024.

The Department of Natural Resources adopted amendments to regulations governing water management. The amendments clarify commissioner actions regarding pending water right applications and time frames for extending an authorization for temporary use of water. See https://aws.state.ak.us/OnlinePublicNotices/Notices/View.aspx?id=215679.

The Department of Ecology proposed amendments to the state's surface water quality standards. The amendments would, among other things, add definitions for a performance-based approach method and local and regional sources of human caused pollution, update aquatic life criteria for temperature and dissolved oxygen, and update natural conditions criteria. A hearing will be held June 27, 2024. Comments are due July 12, 2024. See https://lawfilesext.leg.wa.gov/law/wsr/2024/11/24-11-047.htm.