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New Hampshire Department of Environmental Services

Watershed Management Bureau

  Watershed Assistance Section

   Innovative Stormwater Treatment Technologies Best Management Practices Manual



May 2002

Table of Contents

Lists: Tables and Figures

Disclaimer

Introduction

Purpose of Manual
How to Use this Manual

Chapter 1 Understanding Stormwater Pollution

1.1. What is Urban Stormwater?
1.2. Common Stormwater Pollutants
Chapter 2 Selecting the Right Stormwater BMP Technology 2.1. Decision Criteria

Chapter 3 Cold Climate Considerations

3.1. Concerns
3.2. Maintenance Requirements

Chapter 4 Installation, Operation and Maintenance Planning

4.1. Installation
4.2. Operation and Maintenance
4.3. Operation Monitoring

Chapter 5 Best Management Practices

5.1. Swirl Separators 5.1.1. BaySaver
5.1.2. Continuous Deflective Separation (CDS) Unit
5.1.3. Downstream Defender®
5.1.4. Stormceptor®
5.1.5. Vortechs® Stormwater Treatment System
5.1.6. HYDRASEP®
5.1.7. Aqua-Swirl® Concentrator

5.2. Retrofit Constructed Wetland Device

5.2.1. StormTreat®

5.3. Filtration Systems

5.3.1. Aqua-Filter® Stormwater Filtration System
5.3.2. StormFilter®

5.4. Patented Vegetated Swale

5.4.1. The Howland Swale

5.5. Catch Basin Systems

5.5.1. AbTech Ultra-Urban® Filters with OARS® Onboard
5.5.2. StreamGuard® Catch Basin Insert
5.5.5. Fossil Filter®
5.5.6. Grate Inlet Skimmer Box
5.5.7. Hydro-Kleen
5.5.8. The Inceptor

5.6. High Efficiency Sweepers

5.6.1. Schwarze Sweeper
5.6.1. TYMCO® Regenerative Air Sweeper

Glossary of Terms

References

Appendix. Low Impact Development References


Complete text of Manual   [PDF - 1,160KB]



* About the Watershed Assistance Section
* What is a Watershed?
 
Nonpoint Source Program
* What is Nonpoint Source Pollution?
* Pollution Source Investigations
* Grants Programs
 
Programs and Projects
* Hodgson Brook Restoration Project
* Smart Growth
* Watershed Assistance Grants Database
* Watershed-based Plans
* Quality Assurance Project Plans (QAPP)
 
More Information
* Fact Sheets
* Federal Storm Water Program (Phase II)
* Publications
* Project Wet Curriculum
* Contact Watershed Assistance


Cover Photo, provided by Steve Couture, NHDES

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