Phase II NPDES Permit – Is Your MS4 Program Meeting its Milestones? 

Ohio EPA’s deadline to update your comprehensive stormwater management code, erosion & sediment control code, and Stormwater Management Program (SWMP) is fast approaching.  CRWP is here to help.  We developed model codes and a SWMP template to assist our members with the updates. (See the links under the Resources sectionof this page.)  Updated SWMPs must be submitted to Ohio EPA for review within 2 years of the permittee’s MS4 permit renewal date (or no later than December 22, 2016, whichever is earlier).  If you have any questions about the program, please contact Christina Znidarsic at (440) 975-3870 or This email address is being protected from spambots. You need JavaScript enabled to view it..

Proposed E-Reporting Rule for All NPDES Reporting

EPA is proposing a regulation that would require electronic reporting for current paper-based NPDES reports, including the Phase II Annual Reporting for MS4s.  The proposed Clean Water Act regulation would require permittees and regulators to use existing, available information technology to electronically report information and data related to the NPDES permit program in lieu of filing written reports.
Click here for the full rule.  The public comment window is open until October 28, 2013.  If you have any questions about how this rule may affect your reporting, you can contact Christina Znidarsic at (440) 975-3870 or This email address is being protected from spambots. You need JavaScript enabled to view it..


Stormwater discharges are generated by runoff from land and impervious areas such as paved streets, parking lots, and building rooftops during rainfall and snow events that often contain pollutants in quantities that could adversely affect water quality. Most stormwater discharges are considered point sources and require coverage by a National Pollutant Discharge Elimination System (NPDES) permit. The primary method to control stormwater discharges is through the use of best management practices

Under the NPDES General Permit for Small Municipal Separate Storm Sewer Systems (MS4), many of the Chagrin River watershed communities are required to submit Phase II stormwater management programs to detail how each individual community will comply with the Phase II mandates. These regulations require designated communities to develop and implement a stormwater management plan. This program is composed of six minimum control measures:(BMPs).

  1. Public Education
  2. Public Involvement
  3. Illicit Discharge Detection and Elimination
  4. Construction Site Runoff Control
  5. Post Construction Site Runoff Control
  6. Good Housekeeping


MS4 Permit OHQ000003

CRWP Presentations/Speakers Bureau

Northeast Ohio Stormwater Training Council Phase II Stormwater Training Opportunities and Archives

Watershed-Based National Pollutant Discharge Elimination System Permitting Implementation Guidance (pdf 1.65MB)