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Mary Krull

Environmental Engineer

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Mary Krull has several years of experience as an environmental permitting and compliance specialist. She has developed and updated industrial and construction stormwater pollution prevention plans as well as assisted with National Pollutant Discharge Elimination System permitting and compliance. Mary also assists with facility compliance for a variety of clients including petroleum refineries and terminals, proposed and active mining operations, and ethanol production facilities.


(218) 788-6304


Professional Engineer (MN)


BS, Civil and Environmental Engineering, Iowa State University


Barr Engineering Co.
325 South Lake Avenue
Duluth, MN 55802

Phone: 218-529-8200
Fax: 218-529-8202
Toll free: 800-786-5830