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Divisions > Water Division > Programs/Bureaus/Units >

Stormwater

Stormwater is water from rain or melting snow that does not soak into the ground. Stormwater in a forest, meadow, or other natural environment usually soaks into the ground, i.e., infiltrates, or is filtered as it flows along the ground and over native vegetation. When forests and meadows are developed, they are commonly replaced with impervious surfaces such as houses, buildings, roads and parking lots. Impervious surfaces prevent stormwater from soaking into the ground, which create excess stormwater runoff. Stormwater can become polluted when it runs off streets, lawns, farms, and construction and industrial sites if there are fertilizers, dirt, pesticides, oil and grease, or other pollutants in its path. When polluted stormwater is left untreated, it enters our rivers, lakes, and coastal waters and can cause water quality impairments. more…

Hot Topics

• NEW – Clarification of NH Specific Conditions (Section 9.1.2) in the EPA 2012 Construction General Permit
• NEW – List of ORW and Impaired (4A and 5) Waters for CGP NOIs [PDF | XLS] (Updated May 10, 2012)
• DES Pervious Pavement Pilot Demonstration Site
• NH Stormwater Manual (now available in hard copy)
• NPDES Stormwater Permit Program EPA Updates
• Salt Reduction Initiative in New Hampshire
• NEW - Stormwater Management for Homeowners
• Stormwater Utilities

Publications (Complete List)

Rules/Regulatory

• All NH Water Quality/Quantity Rules
• Stormwater Relevant NH Rules
  • Env-Wq 1500 Alteration of Terrain
  • Env-Wq 1400 Shoreland Protection
  • Env-Wq 1700 Water Quality Standards

Education/Outreach

• DES Pervious Pavement Pilot Demonstration Site
• Outreach Guidance for Watershed Assistance and Restoration Grant Projects
• Pet Waste Outreach Campaign
• Public Education and Outreach Phase II Permit Requirements and Resources
• Stormwater Management for Homeowners

Technical Assistance

• NH Regional Stormwater Coalitions
• Stormwater Utilities
• University of New Hampshire Stormwater Center
• Financial Assistance
  • Watershed Assistance Section
  • Watershed Assistance and Restoration Grants
  • State Revolving Loan Fund
  • Competitive Coastal Grants

Permits (Complete List)

• Federal Stormwater Regulations (Phase II) National Pollutant Discharge Elimination System
  • Construction General Permit (CGP) (For Construction Activities)
  • Multi-Sector General Permit (MSGP)
  • Small Municipal Separate Storm Sewer System (MS4) Permit
• NH Alteration of Terrain Bureau

Related Programs (Complete List)

• Alteration of Terrain Program
• Drinking Water and Groundwater Bureau
• NH Subsurface Systems
• Section 401 Water Quality Certification
• Shoreland Protection

Partnerships

• EPA- Region 1 Stormwater Program
• New England Interstate Water Pollution Control Conference (NEIWPCC)
• NH Southeast Watershed Alliance
• NH Regional Stormwater Coalitions
• Piscataqua Region Estuaries Partnership
• University of New Hampshire Stormwater Center

Commissions/Task Forces

• Legislative Stormwater Study Commission Final Report – November, 2010

Contact Us (Complete List)

NPDES Permit Contact at DES:

• Jeff Andrews, Wastewater Engineering Bureau
  29 Hazen Drive; PO Box 95
  Concord, NH 03302-0095
  (603) 271-2984
  (603) 271-4128 (fax)
  jeff.andrews@des.nh.gov

General Stormwater Contact:

• Jillian McCarthy, Nonpoint Source Specialist
  Watershed Management Bureau
  29 Hazen Drive; PO Box 95
  Concord, NH 03302-0095
  (603) 271-8475
  (603) 271-7894 (fax)
  jillian.mccarthy@des.nh.gov

 

 

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NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm