Montana Code Annotated (2013)
Table of Contents / TITLE 75. ENVIRONMENTAL PROTECTION / CHAPTER 5. WATER QUALITY
Part 3. Classification and Standards
Current Version 2025, 2023, 2021, 2019, 2017, 2015, 2013, 2011, 2009, 2007, 2005, 2003, 2001, 1999, 1997, 1995
75-5-301 - Classification and standards for state waters
75-5-302 - Revised classifications not to lower water quality standards -- exception
75-5-303 - Nondegradation policy
75-5-304 - Adoption of standards -- pretreatment, effluent, performance
75-5-305 - Adoption of requirements for treatment of wastes -- variance procedure -- appeals
75-5-306 - Purer than natural unnecessary -- dams -- definition
75-5-307 - Hearings required for classification, formulation of standards, and rulemaking
75-5-308 - Short-term water authorizations -- water quality standards
75-5-309 - Standards more stringent than federal standards
75-5-310 - Site-specific standards of water quality for aquatic life
75-5-311 - Local water quality districts -- board approval -- local water quality programs
75-5-312 - Temporary water quality standards
75-5-313 - Nutrient standards variances -- individual, general, and alternative
75-5-314 - Confidentiality of base numeric standards and nutrient standards variances
75-5-315 - Outstanding resource waters -- statement of purpose
75-5-316 - Outstanding resource water classification -- rules -- criteria -- limitations -- procedure -- definition
75-5-317 - Nonsignificant activities
75-5-318 - Short-term water quality standards for turbidity
75-5-325 - Definitions
75-5-326 - Gray water reuse -- restrictions
75-5-327 - Local gray water regulations