Minnesota Stormwater Monitoring Consultant - MPCA MSGP

Caltha LLP is a professional services firm providing expert technical support in areas related to Environmental Health & Safety, including environmental permitting and regulatory compliance support.

One of the key services Caltha provides are expert technical services relating to industrial stormwater discharge permitting and compliance. Based in Minnesota, Caltha LLP has provided these services to clients around the country.

In Minnesota, MPCA has recently greatly expanded the requirements placed on industrial and "industrial-like" municipal facilities. Caltha provides a wide range of technical services to quickly and cost-effectively help these facilities come into compliance with these new rules. Ultimately, Caltha strives to enable facilities to manage their own compliance programs over the long term.

Here we discuss one element of the compliance requirements - stormwater monitoring.

The single most significant change to compliance requirements in Minnesota will be stormwater sampling. All sites covered under the permit will have to collect stormwater samples and have samples analyzed by a Minnesota certified laboratory. Samples are collected at all affected discharge points from the site within the first 30 minutes of stormwater discharge. The results will be reported to MPCA on a quarterly basis. Results will be compared to stormwater “benchmark” values for each industrial sector.

Additional information (click on links)
Flow chart of MPCA chemical benchmark monitoring scheme

Further information on selecting monitoring techniques


Caltha LLP has been assisting industrial facility comply with stormwater monitoring requirements around the county for many years. Services range from technical guidance on selecting benchmark monitoring locations and preparing stormwater monitoring plans to collecting stormwater samples, including installation of automatic sampling equipment, if needed.

Read more about Caltha’s INDUSTRIAL STORMWATER SERVICES IN MINNESOTA.


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