DEM Home > Programs > Bureau of Environ. Prot. > Office of Water Res. > Permits > RIPDES > Storm Water Program
Stormwater Manual Page
Phase II SW Ed and Outreach Program - Minimum Requirements
MS4 Storm Water Coordinators
FINAL Multi-Sector General Permit
Final Multi-Sector General Permit NOI- (eff. 5/1/06)
Final Small MS4 General Permit
December 19, 2003
The National Pollutant Discharge Elimination System (NPDES) Phase I storm water program, initiated in 1990, required discharges from large construction sites, certain industrial activities and operators of "medium" or "large" MS4s (MS4s that serve a population of 100,000 or greater), to obtain permits and implement a storm water management program as a means to control polluted discharges from these activities. Since 1984, the Rhode Island Department of Environmental Management (RIDEM) has been the delegated authority to implement the NPDES program in Rhode Island (referred to as RIPDES).
The Environmental Protection Agency (EPA) finalized on December 8, 1999, the Storm Water Phase II Rule, that requires MS4s to obtain permits and establish a storm water management program that is intended to improve waterbodies by reducing the quantity of pollutants that can enter storm sewer systems during storm events.
The Storm Water Phase II Rule extends the coverage of the NPDES storm
water program to include "small"
MS4s. The Phase II Rule automatically covers on a nationwide basis
all small MS4s located in "urbanized
areas" (UAs) as defined by the Bureau of the Census. Small
MS4s located outside of UAs may be subject to future designation on
a case-by-case basis.
The RIPDES Program amended the RIPDES Regulations and has included Phase II storm water requirements (amended February 5, 2003)
Status of General PermitsThe Multi-Sector General Permit for Storm Water Discharge Associated with Industrial Activities has been finalized and signed on March 30th, 2006. The permit will become effective at midnight May 1st, 2006.
The General Permit for Construction Activity has been issued and is effective as of September 26, 2008 and will expire at midnight September 25, 2013.
The General Permit for Small MS4s and Industrial Activity at eligible facilities operated by regulated Small MS4s has been issued and signed on November 14, 2003.
Please check back soon for announcements regarding the availability of grant funds to support local projects to abate nonpoint source (NPS) pollution. Visit the Nonpoint Source Funding page for additional information or contact Betsy Dake at 222-4700 extension 7230 or email@example.com.
For more information E-mail:
Margarita Chatterton (firstname.lastname@example.org)
RI Model SWPPP
Construction Site Stormwater Compliance Program