General Permits

A "general permit" covers multiple individual discharge sources and locations that have the same type of discharges and involve situations where the Department determines there is a relatively low risk for significant environmental impact. General permits may be issued for different specific categories of discharge activities.

A Note on Renewals of General Permits

It Department's intent to renew the following General Permits by their respective expiration dates:

  • Application of Aquatic Pesticides for the Control of Mosquito-Borne Diseases. Expires July 27, 2015
  • Multi-Sector Industrial Stormwater. Expires April 26, 2016
  • Application of Aquatic Herbicides for the Control of Invasive Aquatic Plants. Expires October 4, 2016

Antifouling Paint Contaminated Wash Water. Effective October 14, 2014. Contact: Pam Parker (207) 485-3038

Application of Herbicides, Piscicides. Contact: Bill Hinkel (207) 485-228

  • Herbicides for the Control of Invasive Aquatic Plants. Effective September 28, 2011
  • Piscicides for the Control of Invasive Fishes. Effective August 29, 2014

Aquatic Pesticides for the Control of Mosquito-borne Diseases. Effective July 27, 2010. Contact: Gregg Wood (207) 287-7693

Net Pen Aquaculture. Effective April 10, 2014. Contact for permitting: Bill Hinkel (207) 485-2281. Contact for compliance: Clarissa Trasko (207) 941-4572.

Construction Activity. Effective july 21, 2006. Please Note: construction activity may also require approvals pursuant to the Natural Resources Protection Act, Site Law, Stormwater Managemen Lawt, or other laws.

Post Construction Discharge of Stormwater in the Long Creek Watershed. Effective November 6. 2009. Contact: Alison Moody (207) 615-8936.

Multi-Sector Industrial Stormwater. Effective April 26, 2011. Contact: David Ladd (207) 215-7168.

Municipal Separate Stormwater Sewer System (MS4). Effective July 1, 2013. Contact: David Ladd (207) 215-7168.

Waste Snow Discharge. Effective February 28, 2014. Contact Bill Hinkel (207) 485-2281.

Related page: Opportunity for Public Comment