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Water Quality Control Commission Regulations

 
Drinking Water Regulations
 
Procedural and Planning Rules
 
Surface Water Quality Classifications and Standards - Currently Effective
  • Regulation 31 pdf file  - The Basic Standards and Methodologies for Surface Water (amended 9/11/12, effective 1/31/13)
  • Regulation 32 pdf file    - Classifications and Numeric Standards for Arkansas River Basin (amended 8/12/13, effective12/31/13) 
  • Regulation 33 pdf file   - Classifications and Numeric Standards for Upper Colorado River Basin and North Platte River (Planning Region 12) (amended 5/13/13, effective 9/30/13) 
  • Regulation 34 pdf file    - Classifications and Numeric Standards for San Juan River and Dolores River Basins (amended 5/13/13, effective 9/30/13) 
  • Regulation 35 pdf file   - Classifications and Numeric Standards for Gunnison and Lower Dolores River Basins (amended 5/13/13, effective 9/30/13)   
  • Regulation 36 pdf file    - Classifications and Numeric Standards for Rio Grande Basin (amended 8/12/13, effective 12/31/13)   
  • Regulation 37 pdf file    - Classifications and Numeric Standards for Lower Colorado River Basin (amended 5/13/13, effective 9/30/13)   
  • Regulation 38 pdf file   - Classifications and Numeric Standards for South Platte River Basin, Laramie River Basin, Republican River Basin, Smoky Hill River Basin (amended 5/13/13, effective 9/30/13)    
  • Regulation 39 pdf file   - Colorado River Salinity Standards
 
 
Surface Water Quality Classifications and Standards - Delayed Effective Date
 
 
Ground Water Quality Classifications and Standards
  • Regulation 41 pdf file - The Basic Standards for Ground Water (amended 9/11/12, effective 1/31/13) 
  • Regulation 42 pdf file - Site-Specific Water Quality Classification and Standards for Ground Water (amended 2/13/06, effective 3/30/06)
  • Regulation 43 pdf file  - On-Site Wastewater Treatment System Regulation (adopted 5/13/13, effective 6/30/13)
 
Financial Assistance Rules
  • Regulation 51 pdf file - State of Colorado Water Pollution Control Revolving Fund Rules (amended 5/14/12, effective 6/30/12)
  • Regulation 52 pdf file - Drinking Water Revolving Fund Rules (amended 3/9/09, effective 3/9/09 (emergency) and 4/30/09 (permanent)
  • Regulation 53 pdf file - Domestic Wastewater Treatment Grant Funding System (amended 8/11/08, effective 1/1/09)
  • Regulation 54 pdf file - Drinking Water Grant Fund (amended 8/11/08, effective 1/1/09)
  • Regulation 55 pdf file  -  Water Quality Improvement Fund (amended 5/13/13, effective 6/30/13) 
 
Point Source Discharge Permit and Control Regulations
 
Watershed Protection Control Regulations
 
Other Control Regulations  
  • Regulation 81 pdf file   -  Animal Feeding Operations Control Regulation (amended 10/7/2013, effective 11/30/13) 

  • Regulation 82 pdf file - 401 Certification Regulation (last update effective 3/31/03)  

  • Regulation 84 pdf file - Reclaimed Water Control Regulation (amended 6/10/13, effective 7/30/13)
  • Regulation 85 pdf file - Nutrients Management Control Regulation (adopted 6/11/12, effective 9/30/12)
 
Implementation of Clean Water Act Section 303(d) Requirements
  • Regulation 93 pdf file - Colorado's Section 303(d) List of Impaired Waters and Monitoring and Evaluation List (amended 02/13/12, effective 03/30/12)
 
ISDS Guidelines - REPEALED

 

 

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