Minnesota Stormwater Monitoring Services - Storm Water Sampling Services

Under the new Minnesota general storm water permit, all permitted facilities will need to conduct stormwater sampling. Facilities will need to conduct quarterly monitoring of their stormwater discharge locations for four consecutive quarters (i.e, one year). The date when the monitoring year begins will depend on the industrial sector a facility falls into, and will begin in either June 2011, August 2011 or October 2011 for most facilities.

The chemical parameters that need to be analyzed for will also depend on the facility’s industrial sector.

More information on stormwater monitoring and storm water benchmarks:

Summary of MPCA industrial stormwater permit

Minnesota industrial stormwater control requirements

Summary of industrial sector requirements and stormwater benchmarks

Presentation from November 2010 on historic industrial stormwater monitoring results compared to industrial storm water benchmarks


Beginning in April 2011, Caltha LLP will be conducting training sessions to assist facilities as they prepare for Benchmark Monitoring. To request information on these sessions, as it becomes available, please email info@calthacompany.com or call (763) 208-6430

Caltha LLP provides expert stormwater consultant services in Minnesota to prepare stormwater pollution prevention and spill prevention plans, prepare stormwater benchmark monitoring programs, and to develop cost effective employee training 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