Clean water policies, guidance, and MOUs

Permitting

• CW-1 Clean Water 1 Reasonable Potential.
• CW-2 Clean Water 2 Applicability of Nutrients Management Control Reg Dilution.
  Exception for discharges to waters designated as Critical Habitat for Threatened and Endangered species.
• CW-3 Clean Water 3 Permit Compliance Schedules.
• CW-5 Discharge from Water-based fire suppression systems.
• Guidance for discharges associated with fire suppression systems.
• Notice for Fire Suppression Dischargers 1-5-2015.
• CW-6 Practical Quantitation Limits.
• CW-7 Reporting of surface water discharge associated with residential and landscape irrigation.
• CW-8 Colorado Nutrient Management Plan and 10-Year Water Quality Roadmap.
• CW-9 Soil Type R Long Term Acceptance Rate Policy.
• CW-10 Water Quality Control Division Groundwater Discharge Permitting of Solid Waste Activities.
• CW-12 Selection of Water Quality Best Management Practices for Regulation No. 82.
• CW-13 Permit Implementation Method for Narrative (Current Condition) Temporary Modifications.
  • 2024 Updated Arsenic Terms and Conditions.
  • 2024 presentation on Arsenic Temp Mod letter.
• CW-14 Gravity Flow Dewatering Systems for Select Activities.
• CW-16 Electronic Signatures.
• CW-18 Localized Reclaimed Water Treatment System Requirement Implementation Under Regulation 84
• WQP-1 Permit Inactivation Policy Where a Discharge Remains.
• WQP-4 401 Certification of 404 After the Fact Permit Application.
• WQP-8 Economic Reasonableness.
• WQP-19 Policy for Characterizing Ambient Water Quality for use in Determining Water Quality Standards Based Effluent Limits.
• WQP-20 Baseline Monitoring Frequency.
• WQP-21 Guidelines for the Determination of Agronomic Rate for Application of Reclaimed Water Under Reg 84.
• WQP-23 Procedures for Conducting Assessments for Implementation of Temperature Standards.
• WQP-24 Implementing Narrative Standards in Discharge Permits for Protection of Irrigated Crops.
• WQP-25 Monitoring and Reporting Requirements for Reclaimed Water Treatment Facilities.
• WQP-26 Methodology for Determining Agronomic Rates for the Beneficial Use of Biosolids.
• WQP-27 Low risk discharge policy.
  • Hot springs.
  • Trail Building.
  • Notice for fire suppression dischargers 1-15-2015.
  • Potable water monitoring devices.
  • Potable water.
  • Rural Roadway Culvert Flushing by Public Entities
  • Snow melting.
  • Surface cosmetic power washing operations to land.
  • Swimming pools.
  • Uncontaminated groundwater to land.
• WQP-28 Blending of Septage from (ISDS) With Biosolids.
• Whole Effluent Toxicity (WET) Testing Policy.
• E.Coli Versus Fecal Coliform Effluent Limitations Policy.
• Antidegradation Significance Determination Guidance.
  • Clarifications of Antidegradation Guidance Regarding Implementation of Implicit Non-Impact Limits (NILs).
• Colorado Mixing Zone Implementation Guidance.
• Colorado Pollutant Trading Policy.
• Southern Ute Water Quality Jurisdictional Issues: Stephen Tuber letter.
• EPA 1992 Intake Credits Memo.

Enforcement and compliance

• Expedited settlement agreement for animal feeding operations.
• Civil Penalty Policy 1993.
• Civil Penalty Policy 2022.
• Enforcement Management System. 
• Department policy for settling penalties against counties and municipalities.
• Stormwater Civil Penalty Policy 2007.
• Stormwater Civil Penalty Policy 2022.
• Stormwater ESA Pilot Program.
• WQE-9:Public notification on administrative enforcement actions.
• WQE-10:Guidance for reporting spills under theColorado Water Quality Control Act and theColorado discharge permits.
• Agencywide supplemental environmental project policy.
• CW-4 SMSA: stormwater management system administrator oversight visits.
• CW-11: Noncompliance Notifications for Practice Based Effluent Limits in Specific General Permits - Construction Stormwater.
• CW-16 Electronic Signatures.
• Policy CW17: Enforcement of Unpermitted Discharges of Dredged and Fill Material into State Waters

Engineering/facility design approval policies

•  CW-19 Implementation Policy Regulation No. 22 – Site Location and Design Regulations for Domestic Wastewater Treatment Works (5 CCR 1002-22)

Clean water guidance

• Antidegradation Alternative Analysis
  • Antidegradation Alternatives Analysis Guidance
  • Antidegradation Alternatives Analysis Examples
• Regulation 22, Project Needs Assessment, and Discharger Specific Variance (DSV) alternative analysis feasibility guidance
• Discharge permit, low risk and clean water authorization guidance. Includes CDPS permits, biosolids, reclaimed water and pretreatment. Refer to the appropriate sector for applicable guidance.
• DMR guidance
  • DMR Calculation Workbook
  • DM/MWAT Data Workbook
• Electronic Signature Guidance
• Information for wastewater facilities not having Site Location Approval
• Information for Site Location de-rating wastewater facilities below 2,000 gpd
• Information about domestic treatment works decommissioning
• Guidance Regarding Establishment of Water Quality Planning Targets/PELs

Clean Water MOUs

• MOU regarding enhanced coordination in implementing Colorado's Mixing Zone Rule (among WQCD, U.S. Fish and Wildlife Services, and EPA).
• COGCC-WQCD MOU, Responses to Spills/Releases to Surface Water
• DRMS Coal Program-WQCD permitting and enforcement MOU 
• CDOT-WQCD MOU regarding personnel liaison agreement between agencies
• CDOT-WQCD MOU regarding COR400000 billing
• Water Quality Control Commission SB89-181 (groundwater) MOUs

Water Quality Control Commission Policies