Minnesota Stormwater Permit - MPCA Industrial Storm Water Rules

The Minnesota Pollution Control Agency (MPCA) has issued its revised “Industrial Stormwater Multi-Sector General Permit“(MSGP). The first group of permittees, designated by their business sector, has applications due in early June. This permit covers stormwater discharges from industrial and “industrial-like” operations that are required to have a stormwater discharge NPDES permit.

NPDES permits, including general permits, are reissued on a 5-year cycle. The old MPCA permit was written in 1997 and expired in 2002. Therefore, this revised permit was needed to replace the expired one. The Federal requirements of industrial stormwater dischargers have changed significantly since the expired MPCA permit was drafted in 1997. Therefore, the new permit was needed to address the many changes to program requirements that have been enacted in the last 12 years.

The size and complexity of the revised permit is much greater compared to the expired permit that Minnesota industries were subject to.

The industrial stormwater permit applies equally to all industrial and “industrial-like” municipal facilities in Minnesota based on the Standard Industrial Classification, or “SIC Code” or by their “narrative” description. Rules apply to any facility regardless of size or number of employees.

MPCA has estimated that as many as 20,000 facilities will be affected by at least some of the industrial stormwater rules, and as many as 10,000 facilities will be subject to the requirements of the full stormwater discharge permit.

More Information:
Overview of Minnesota MPCA Industrial Permit
Industrial Stormwater Monitoring Requirements
Minnesota Stormwater Pollution Prevention Plan Template
Overview of Stormwater Control Requirements In MPCA Industrial Permit
Comparison of MPCA storm water benchmarks to past industrial group monitoring results

Upcoming Training Opportunities:

SWPPP Implementation, Amendment, Review & Revision Training – Plymouth, MN May 19
SWPPP Implementation, Amendment, Review & Revision Training – Mankato, MN May 27
SWPPP Implementation, Amendment, Review & Revision Training – Moorhead, MN June 3

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