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. Comments are due the same date. See https://sosmt.gov/docs/118/2024/64310/issue-11-june-7-2024 (pp. 1259-77).