Water quality permitting policies
- CW1 Clean Water 1 Reasonable Potential.
- CW2 Clean Water 2 Applicability of Nutrients Management Control Reg Dilution.
Exception for discharges to waters designated as Critical Habitat for Threatened and Endangered species. - CW3 Clean Water 3 Permit Compliance Schedules.
- CW5 Discharge from Water-based fire suppression systems.
- Guidance for discharges associated with fire suppression systems.
- Notice for Fire Suppression Dischargers 1-15-2015.
- CW6 Practical Quantitation Limits.
- CW7 Reporting of surface water discharge associated with residential and landscape irrigation.
- WQP1 Permit Inactivation Policy Where a Discharge Remains.
- WQP2 Significant Digits in Permit Limitations.
- WQP4 401 Certification of 404 After the Fact Permit Application.
- WQP5 Permit Policy for Mining Activities.
- WQP8 Economic Reasonableness.
- WQP19 Policy for Characterizing Ambient Water Quality for use in Determining Water Quality Standards Based Effluent Limits.
- WQP20 Baseline Monitoring Frequency.
- WQP21 Guidelines for the Determination of Agronomic Rate for Application of Reclaimed Water Under Reg 84.
- WQP23 Procedures for Conducting Assessments for Implementation of Temperature Standards.
- WQP24 Implementing Narrative Standards in Discharge Permits for Protection of Irrigated Crops.
- WQP25 Monitoring and Reporting Requirements for Reclaimed Water Treatment Facilities.
- WQP26 Methodology for Determining Agronomic Rates for the Beneficial Use of Biosolids.
- WQP27 Low risk discharge policy.
- WQP28 Blending of Septage from (ISDS) With Biosolids.
- Whole Effluent Toxicity (WET) Testing Policy
- E.Coli Versus Fecal Coliform Effluent Limitations Policy
- Antidegredation Significance Determination Guidance
- Colorado Mixing Zone Implementation Guidance
- MOU Regarding Enhanced Coordination in implementing Colorado's Mixing Zone Rule (among CDPHE WQCD, U.S. Fish and Wildlife Services, and EPA)
- Colorado Pollutant Trading Policy
- Southern Ute Water Quality Jurisdictional Issues: Stephen Tuber letter
- EPA 1992 Intake Credits Memo