DEEP: Nonpoint Source Management

Nonpoint Source (NPS) Pollution Management

Many activities associated with various land uses within Connecticut have the potential to contribute pollution to ground and surface water resources.  Water pollution that is not concentrated within a drainage system, or discharged from a point, such as a pipe, is called nonpoint source pollution.  Potential sources of Nonpoint Source Pollution can include agriculture, waste from domestic animals and wildlife, malfunctioning septic systems, runoff from impervious surfaces and managed turfgrass, soil erosion, atmospheric deposition, marinas and boating activity, and others.  Pollutant levels, or loadings, from nonpoint sources can be increased by weather conditions which cause stormwater runoff or snowmelt.  If pollutant concentrations from these nonpoint sources are high enough, uses of those surface or groundwaters for public water supplies, recreation, or aquatic life may become impaired

In Connecticut, stormwater pollution from urban areas that is collected in stormdrains, or that discharges from construction, commercial, or industrial sites, is regulated by stormwater general permits, so is technically considered point source pollution.  More information on Stormwater Management and Permitting

The Connecticut Department of Energy and Environmental Protection has worked to develop programs, technologies and legislation with both local and national significance that are protective of water resources, and has led a national pilot program to monitor nonpoint source pollution at residential development sites.

A significant component of Connecticut DEEPís Nonpoint Source Management Program consists of implementing the EPA Clean Water Section 319 Program.  DEEP issues a Request for Proposals annually for 319 Nonpoint Source Projects.
Additional Nonpoint Source Program Initiatives
2016 NEIWPCC Nonpoint Source Pollution Conference in Connecticut
27th Annual Nonpoint Source Pollution Conference for the New England states and New York will be held on April 20-21, 2016 at the Hilton in Hartford, Connecticut.
This conference, coordinated by New England Interstate Water Pollution Control Commission (NEIWPCC) in partnership with its member states and EPA, has become the premier forum for sharing information about nonpoint source pollution (NPS) issues and projects in this region.  The 2016 conference sessions will reflect the theme:  Doing More with Less: Tools for More Effective NPS Management.  Please save the date on your calendar and stay tuned for early bird registration next year.  More information
GRTS: Grant Reporting and Tracking System
State grant recipients are required to report their progress annually in GRTS, including reductions of NPS pollutant loadings and improvements to water quality achieved by pollution control practices.  GRTS enables EPA and States to demonstrate the accomplishments achieved with the use of 319 grant funds.  The data entered into GRTS is used by EPA to respond to inquires received from Congressional committees, the White House, and various constituent groups.
Grant recipients should fill out the spreadsheet XLS form below, save it, and email it to your DEEP Watershed Manager
Required "load reduction" calculations should be accomplished using either the Region 5 Load Estimation Spreadsheet Model, or the more complex STEPL Model (most recent verison), which can be found at: by selecting the Models and Documentation Link on the left side menu.
EPA's GRTS Home has more information on GRTS
The Connecticut Department of Energy and Environmental Protection (DEEP) is in the process of 
DEEP's Watershed Management Program is actively involved in administering nonpoint source control grants and programs.  For further information, please contact your Watershed Manager.
Content last updated March 1, 2016