Coal Tar Based Sealant Rules Effective July 1, 2010

As of July 1, 2010, restrictions on the use of coal tar based sealants by Minnesota state agencies became effective. In 2009, the Minnesota Legislature enacted a law restricting to use of coal tar-based asphalt sealants in Minnesota. The bill prohibited state agencies from purchasing undiluted coal tar-based sealant, and directed the Pollution Control Agency (MPCA) to study its environmental effects and develop management guidelines.


The 2009 legislation required:


• MPCA to notify state agencies and local governments of the potential for contamination of stormwater ponds and wetlands by coal tar-based sealants.
• MPCA must complete a plan to inventory stormwater ponds in the state by January 15, 2010.
• As of July 1, 2010, State agencies may not purchase undiluted coal tar-based sealant.
• MPCA must develop best management practices and develop model ordinance on use of sealants for local units of government (LUGs)
• MPCA will develop a process by July 2010 for awarding grants to LUGs for treatment of contaminated sediment.

By the next cycle of municipal stormwater permitting, beginning June 2011, all MS4 permittees will be required to comply by all provisions of the legislation.

Caltha LLP provides expert environmental consultant services in Minnesota to obtain air and wastewater permits, evaluate regulatory requirements, and to develop cost effective compliance programs.

For further information, contact Caltha LLP at:
Email: info@calthacompany.com
Phone: (763) 208-6430
Website: http://www.calthacompany.com/
Two Minnesota offices - Minneapolis and Pine River