Municipal Separate Storm Sewer System (MS4s) Permits: UPDES Permits

• MS4 Audit Action Plan Template
• Construction Oversight Inspection Form (Word)
• Construction Oversight Inspection Form (PDF)
• Construction Oversight Notice of Termination Inspection Form
• MS4 High-Priority Facility SWPPP Template
• Visual Assessment of Storm Water Discharges Inspection Form Template

• A Guide to the Annual Stormwater Management Plan Review
• New MS4 Coordinators Resource Guide
• Development of Utah’s Small MS4 Storm Water Retention Standard
• EPA’s Green Infrastructure
  Real-world solutions from EPA’s Green Infrastructure Technical Assistance Program.
• EPA’s MS4 Website EPA’s MS4 website includes information on the MS4 program, stormwater management program, fact sheets and other resources.
• Guide to Low Impact Development within Utah
  Includes information on calculating and retaining the 80th percentile storm, best management practices, project documentation, storm water integration at the jurisdictional and project level, and a discussion of local case studies.
• Storm Water Quality Report Template
  Includes a word version of the document referenced in “A Guide to Low Impact Development” Appendix B.
• International Stormwater BMP Database
  For best practices in stormwater management, go to the International Stormwater BMP Database website.
• Measurable Goals Guidance for Phase II Small MS4s
  EPA’s fact sheet on the six minimum control measures for small MS4 owners/operators.
• EPA’s Guidance for Preparing Standard Operating Procedures (SOPs)
  EPA’s guidance for assisting with SOP development, updates, and review.

• Jordan River E. coli TMDL MS4 Guidance Document
• Jordan River E. coli TMDL Assessment Units and Sources List
• Checklist for E. coli Source Inventory
• E. coli Sources, Audiences, & Potential Best Management Practices (BMPs) Worksheet
• TMDL Compliance Report

• EPA’s Stormwater Phase II Fact Sheet Series
  EPA’s fact sheet series includes information on minimum control measures and permitting resources.
• Best Management Practices for Snow Storage
• Best Management Practices for Discharging Swimming Pool and Hot Tub Water
• Best Management Practices for the Discharge of Water from Fire Suppression Systems
• DWQ Guidance for Calculation of 80th Percentile Storm Event
• DWQ Guidance for Floor Drain Discharges from Public Water Well Houses & Pump Houses
• DWQ Guidance for Storm Water Drainage Wells & the MS4 Permit

What does it mean to be a Phase I or Phase II MS4?

In 1990, EPA established Phase I of the National Pollutant Discharge Elimination System (NPDES) stormwater program. The Utah Pollutant Discharge Elimination System (UPDES) is the Utah version of NPDES, which is the permit system mandated by § 402 of the Clean Water Act to control pollutants in waters of the U.S., including storm water. The Phase I program for MS4s requires operators of medium and large MS4s (generally those that serve populations of 100,000 or greater) to implement a stormwater management program as a means to control polluted discharges from these MS4s.

The Phase II Rule extends coverage of the UPDES stormwater program to certain small MS4s that are located within an urbanized area of more than 50,000 population. A small MS4 is any MS4 not already covered by the Phase I program. The Phase II Rule automatically covers on a nationwide basis all small MS4s located in urbanized areas, and those small MS4s located outside of those areas that the State of Utah designates.