Water Quality Circulars by Program

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 10 - Standards for the Development of Springs for Public Water Systems
  • 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 16 - Standards for Hauled Water Cisterns (Water Storage Tanks) for Shared Non-Public Systems
  • 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
Program/responsibility DEQ PWS
  DEQ
1
DEQ
2
DEQ
3
DEQ
4
DEQ
7
DEQ
8
DEQ
10
DEQ
11
DEQ
12A
DEQ
12B
DEQ
13
DEQ
16
DEQ
17
PWS
5
PWS
6
Coal Bed Methane                        
Discharge Permits                      
Drinking Water Supply            
Drinking Water SRF                            
Ground Water Remediation                            
Mixing Zones                          
Water Quality Monitoring                          
Nondegradation                          
Nonpoint Source                        
Source Water Protection                          
Standards/Classification                        
Subdivisions        
TMDL Program                      
Wastewater (sewer) Systems                          
Water Pollution Control SRF                          
Water/Wastewater Operator Certification