View the Standards - Clean Water Services

Clean Water Services’ Design and Construction Standards describe administrative and technical requirements for development and construction activities that occur within CWS’ jurisdictional boundary.

The Standards address a range of topics including the design and construction of sanitary sewer and surface water management systems, erosion control methods, and natural resources protection.

Design & Construction Standards (Current): R&O 19-5 as Amended by R&O 19-22, adopted November 12, 2019

Resolution & Order 19-22 & Table of Contents

Text only document, excluding Standard Details (PDF)
R&O 19-5 (PDF)
R&O 19-22 (PDF)
Table of Contents (PDF)

Chapters

Chapter 1 (PDF) – General Requirements and Administrative Provisions
Chapter 2 (PDF) – Administrative Procedures
Chapter 3 (PDF) – Sensitive Areas and Vegetated Corridors
Chapter 4 (PDF) – Runoff Treatment and Control
Chapter 5 (PDF) – Conveyance Design
Chapter 6 (PDF) – Erosion Prevention and Sediment Control
Chapter 7 (PDF) – General Construction Specifications for Conveyance Systems
Chapter 8 (PDF) – Technical Specifications for Conveyance Systems
Chapter 9 (PDF) – Wastewater Pump Stations and Force Mains
Chapter 10 (PDF) – Septic Tank Effluent Pump (STEP) Systems

Appendix A – Planting Requirements

Appendix A (PDF) – Planting Requirements

Appendix B – Standard Details

Appendix B Table of Contents (PDF)
Manholes and Appurtenances 010 – 270 (PDF)
Storm Structures 300 – 407 (PDF)
Pipes 500 – 620 (PDF)
Stormwater Management 700 – 794 (PDF)
Erosion Control 800 – 950 (PDF)
Pump Stations 1000 – 1082 – (PDF)
Flow Monitoring, Testing Forms, Computational Aids 1100 – 1285 (PDF)
AutoCAD Files
- DWG Files Detail 010 – 620 (ZIP, 41.2MB)
- DWG Files Detail 700 – 794 (ZIP, 30MB)
- DWG Files Detail 800 – 1082 (ZIP, 44.5MB)
- DWG Files Detail 1100 – 1285 (ZIP, 8.5MB)

Hydromodification Map Web Tool

Hydromodification Map web tool – This tool assists applicants in determining the necessary hydromodification approach detailed in Chapter 4 (Section 4.03), R&O 19-22. Submit comments, issues, or other feedback on the mapping tool to DnCUpdate@cleanwaterservices.org.