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Office Locations & Contacts

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Contact Information

St. Charles, Missouri William J. Guerdan, P.E. Karl E. Ruhmann, P.E., R.G. 130 Point West Blvd. St. Charles, MO 63301 Phone: 636-949-8200 Fax: 636-949-8269		O’Fallon, Illinois Mark A. Harms, P.E. Scott Harding, CPSS/SC 650 Pierce Boulevard O’Fallon, IL 62269 Phone: 618-624-6969 Fax: 618-624-7099
Union, Missouri Anthony J. Kreutz 47 St. Andrews Drive Union, MO 63084 Phone: 636-584-7991 Fax: 636-584-7966		Springfield, Missouri Matt Jung Branch Manager 4145 S. McCann Court, Suite F Springfield, MO 65804 Phone:417-823-0355 Fax: 471-823-0568