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Home > Programs > Bureau of Environmental Protection > Office of Water Resources > Permitting > Coordinated Stormwater Permitting

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Notice of Proposed Updates to Rhode Island Stormwater Design and Installation Standards Manual - Public Hearing scheduled for January 29, 2015 (NEW DATE). Public comments will be received from 12/22/14 through 1/30/15.

The Department of Environmental Management (DEM) adopted the RI Stormwater Design and Installation Standards Manual in December 2010 and filed new regulations that require the use of the new Manual for all OWR permitting programs. The revised Manual became effective on January 1, 2011 and will be applied to permit applications received on or after that date.

STREAMLINED PERMITTING - In order to streamline the permitting process, the OWR has determined that only one application is required to be submitted to DEM, even if a project is subject to the requirements of more than one OWR permitting program. To determine which program should receive the application, the DEM has developed guidance to assist applicants in this process. Click here for more information: Coordinated Stormwater Permitting Guidance. The advantage to applicants is that a single OWR program will issue pertinent authorizations for the other OWR permitting programs, as applicable.

The Freshwater Wetlands (FWW), Water Quality Certification (WQC), Groundwater Discharge/Underground Injection Control (GWD/UIC), and the Rhode Island Pollutant Discharge Elimination System (RIPDES) Programs all require the use of the RI Stormwater Manual. See below for a link to the appropriate application form(s) for each program.

STORMWATER MANAGEMENT PLAN GUIDANCE - All applicable projects must develop a Stormwater Management Plan as required by the RI Stormwater Design and Installation Standards Manual. In order to make it easier for applicants to address the requirements in the RI Stormwater Design and Installation Standards Manual, the DEM has developed Stormwater Management Plan Guidance, which serves to outline the key components that must be included in every Stormwater Management Plan.

Municipal officials may also use the RI Stormwater Design and Installation Standards Manual to support local stormwater management programs by incorporating or referencing the Manual in local ordinances. Please note that most municipalities and large operators of stormwater systems (e.g., Rhode Island Department of Transportation - RIDOT) are regulated under the Rhode Island Pollutant Discharge Elimination System (RIPDES) Municipal Separate Storm Sewer System (MS4) program and are required by their MS4 permits to have applicants who apply for local permits adhere to the Manual. Because MS4 program requirements vary somewhat and are subject to change, users of the Manual who are applying for local permits are encouraged to consult the RIPDES MS4 Program regulations and the local MS4 Operator ordinances or procedures, as part of developing a stormwater management plan for their project.

PRE-APPLICATION MEETINGS RECOMMENDED - OWR highly recommends that you arrange for a pre-application meeting to meet with the pertinent representatives from the OWR permitting programs during the planning and design phase of the project. To schedule a pre-application meeting with DEM, please contact Ron Gagnon, P.E. Chief of the Office of Customer and Technical Assistance at or (401) 222-4700 ext.7500.

RI Stormwater Manual Appendix A Checklist
(pdf format) (Word format)

Subscribe to the OWRINFO E-mail List:

The Office of Water Resources (OWR) has created an e-mail list to distribute guidance, policies and new regulations regarding the new RI Stormwater Design and Installation Standards Manual and stormwater permitting programs in OWR. You can subscribe by visiting the user-friendly webpage at If you have difficulty subscribing or have other questions, email

For more RIPDES stormwater permitting information E-Mail: Eric Beck
For more Freshwater Wetlands permit information E-Mail: Martin Wencek or Chuck Horbert
For more Water Quality Certification information E-Mail: Alisa Richardson
For more Groundwater Discharge/UIC permitting information E-Mail: Ernie Panciera

For General Information 222-6800 • After Hours Emergencies 222-3070 • Disclaimer
rev. 3/16/15