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Genesee County Drain Commissioner

Surface Water Management





Annual Reports / Informational Updates


Through the Clean Water Act, the Environmental Protection Agency (EPA) establised the Phase II regulations in 1999.  The NPDES Phase II requires permit coverage for storm water discharges from small Ms4s in urbanized areas and construction activities that disturb between 1 and 5 acres of land.  Within Michigan the program is managed by the Michigan Department of Environmental Quality (MDEQ).  Under the MDEQ, Genesee County and the communities that have an urbanized area, have applied for and received permits called certificate of coverage.  One of the requirements of this permit is submitting an annual report, due November 1 of each year.


Annual report for November 1, 2003 through October 31, 2004

                                November 1, 2004 through October 31, 2005

                                November 1, 2005 through October 31, 2006

                                November 1, 2006 through October 31, 2007

                                November 1, 2007 through October 31, 2008        Appendix A-I

                                November 1, 2008 through October 31, 2009        Appendix

                                November 1, 2009 through October 31, 2010        Appendix A-C

                                November 1, 2010 through October 31, 2011        Appendix

                                November 1, 2011 through October 31, 2012        Appendix A

                                November 1, 2012 through October 31, 2013        Appendix A

Following reports submitted to MI Waters by Nov 1, 2015

                                November 1, 2013 through October 31, 2014       Appendix A part 1     Appendix A part 2

                                November 1, 2014 through October 31, 2015        Appendix A part 1     Appendix A part 2

Following reports submitted to MI Waters by Nov 1, 2017
(MI Waters will work with Internet Explorer 10 or 11 and current versions of Chrome and Firefox)

                               Year End Report 2015-2016       Appendix A part 1     Appendix A part 2    Appendix B

                                Year End Report 2016-2017      Appendix A part 1     Appendix A part 2     Appendix B

 Following reports submitted to MI Waters by Nov 1, 2019    



Municipal Questionnaire 2014                    Agency Questionnaire 2014

Municipal Questionnaire 2015                    Agency Questionnaire 2015

Municipal Questionnaire 2016                    Agency Questionnaire 2016

Municipal Questionnaire 2017                    Agency Questionnaire 2017          Procedure for assessing facilities

Municipal Questionnaire 2018                    Agency Questionnaire 2018 


Table 3 for Agencies (updated Oct 16, 2016 based on corrections on 2015-16 completed questionaires)

        Schools click Here

GC Building and Grounds                         
GC Road Commission                                 
GC Motor Pool                                         
GC Parks and Recreation                          
Bishop Airport                                                  

What is an Ms4? An Ms4 is a drainage system (including roads, catch basins, curbs, gutters, parking lots, ditches, conduits, pumping devices, or man-made channels) that is owned by a government agency and designated or used for collecting storm water.

What is an Urbanized Area? The Environmental Protection Agency defines Urbanized Areas as “ a land area comprising one or more places – central place(s) – and the adjacent densely settled surrounding area – urban fringe – that together have a residential population of at least 50,000 and an overall population density of at least 1,000 people per square mile”. 

Old 2000' Urbanized Area Map (Shaded Area)
New2010' Urbanized Area Map (Shaded Area Plus Hatched Area)- link redirects you to MDEQ website

Information Update

To update our communities on the National Pollutant Discharge Elimination System (NPDES) Phase II program for Genesee County.  In an attempt to keep all the communities informed, we have developed this newsletter that will summarize where we are at in this process.                          



 May 2005 
February 2007
January 2009
July 2009
Aug 2011






January 2011
April 2011
May 2011
October 2012
September 2013

MI Waters instruction- September 2015
October 2017