Water Quality Circulars by Program
Circular Titles/Descriptions| Program/ Responsibility |
DEQ 1 | DEQ 2 | DEQ 3 | DEQ 4 |
DEQ 8 |
DEQ 9 |
DEQ 11 | DEQ 17 | PWS 5 |
PWS 6 | DEQ 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Coal Bed Methane | X | ||||||||||
| Discharge Permits | X | X | |||||||||
| Drinking Water Supply | X | X | X | X | |||||||
| Drinking Water SRF | X | ||||||||||
| Ground Water Remediation |
X | ||||||||||
| Mixing Zones | X | ||||||||||
| Water Quality Monitoring |
X | ||||||||||
| Nondegradation | X | ||||||||||
| Nonpoint Source | X | ||||||||||
| Source Water Protection |
X | X | |||||||||
| Standards/Classification | X | ||||||||||
| Subdivisions | X | X | X | X | X | X | X | ||||
| TMDL Program | X | ||||||||||
| Wastewater (sewer) Systems |
X | ||||||||||
| Water Pollution Control SRF |
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 2009 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 is revised on an "as needed" basis. DEQ-7 dated August 2010 is the most recent version. All previous versions are not in effect. If you have any questions about this document, contact Rod McNeil, 444-5361. - 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 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
