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Water Quality Circulars by Program

 Circular Titles/Descriptions

Program/
Responsibility
DEQ 1 DEQ 2 DEQ 3 DEQ
4
DEQ
8
DEQ 11 DEQ 12A DEQ 12B DEQ 13 DEQ 17 PWS
5
PWS 6 DEQ
7
Coal Bed Methane              X  X         X
Discharge Permits              X  X  X       X
Drinking Water Supply X   X               X X  
Drinking Water SRF X                        
Ground Water
Remediation
                        X
Mixing Zones              X           X
Water Quality
Monitoring
             X           X
Nondegradation              X           X
Nonpoint Source              X    X       X
Source Water
Protection
X                     X  
Standards/Classification              X  X         X
Subdivisions X X X X X X       X      
TMDL Program              X  X  X       X
Wastewater (sewer)
Systems
      X          X        
Water Pollution
Control SRF
  X              X        
Water/Wastewater
Operator Certification
      X                  

Description of Circulars

  • DEQ 1- Standards for Water Works
  • DEQ 2- Design Standards for Wastewater Facilities
  • DEQ 3- Standards for Small Water Systems
  • DEQ 4- Montana Standards for On-Site Subsurface Sewage Treatment Systems 2013 Edition
  • DEQ-7- Montana Numeric Water Quality Standards
    DEQ-7 contains the surface water aquatic life and human health water quality standards and the ground water human health standards. DEQ-7 was finalized on October 12, 2012. All previous versions are not in effect. If you have any questions about this document, contact Amy Steinmetz, (406) 444-0371.
  • DEQ 8- Montana Standards for Subdivision Storm Drainage
  • DEQ 9- Montana Technical Standards for Concentrated Animal Feeding Operations
  • DEQ 11- Montana Standards for Development of Springs for Individual and Shared Non-Public Systems
  • DEQ 12A - Montana Base Numeric Nutrient Standards
  • DEQ 12B - Nutrient Standards Variances
  • DEQ 13- Montana Policy for Nutrient Trading 
  • DEQ 17- Montana Standards for Cisterns (Water Storage Tanks) for
    Individual Non-Public Systems
  • PWS 5- Groundwater under the Direct Influence of Surface Water
  • PWS 6- Source Water Protection Delineation