The NPDES program regulates pollutants discharged directly into waterways from wastewater sources. Indirect dischargers (those who discharge to a municipal treatment facility via a sanitary sewer) are not required to have an NPDES permit. Discharge to a storm sewer does not go to a municipal treatment facility, and is considered a direct discharge. Discharge to a municipal treatment facility may require a permit from the municipality under the Industrial Pretreatment Program.
Information obtained from http://www.michigan.gov/deq/0,1607,7-135-3313_3682_3713-10200--,00.html
Please visit the DEQ Website for information on how to apply for a permit and additional information.
Also visit Genesee County's webpage at www.cleargeneseewater.org for information on clear water in the community.