Manual for Septic Professionals in Minnesota

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Download the manual: Manual for Septic System Professionals in Minnesota (pdf.)  *Updated 1/7/2021


The University of Minnesota Onsite Sewage Treatment Program received partial funding from the Minnesota Pollution Control Agency to update its Professional Workshop Manual to coincide with significant Administrative Rule revisions effective 02/04/2008. Our Second Edition incorporated changes to state rule effective 03/14/2011. This following third addition incorporates changes to state rule effective September 2016.  This considerable revision could not have been completed without the help of many contributors, namely the Manual Revision Committee. This committee was composed of members of the onsite sewage treatment industry, representing professional organizations, private industry professionals, and government regulators from the local and state level.

This publication was produced by the University of Minnesota Water Resources Center’s Onsite Sewage Treatment Program team in partnership with University of Minnesota Extension.


Authors: Onsite Sewage Treatment Program Staff
Project Management: Elizabeth Wells, Nicholas Haig, Onsite Sewage Treatment Program
Design: Shawn Welch, University of Minnesota Printing Services; Ben Gunderson, Gleason Printing Inc.
Illustrations: The Carney Group
Printing: Gleason Printing Inc.

Please use the following reference when citing this document:
Onsite Sewage Treatment Program, University of Minnesota. 2020. Manual for Septic System Professionals in Minnesota, 4th Ed. St. Paul, MN.

Individual Sections of the Manual for Reference or Print: 

Table of Contents (.pdf)

Section 1: Introduction (.pdf)

Section 2: Administration (.pdf)

Section 3: Sewage Treatment Utilizing Soil (.pdf)

Section 4: Site Evaluation (.pdf)

Section 5: Wastewater Sources and Flow (.pdf)

Section 6: Plumbing and Collection (.pdf)

Section 7: Septic Tanks (.pdf)

Section 8: Tank Management and Septage (.pdf)

Section 9: Pumping Systems (.pdf)

Section 10: Pretreatment (.pdf)

Section 11: Distribution of Effluent (.pdf)

Section 12: Soil Treatment Systems (.pdf)

Section 13: Forms and Reference (.pdf)

Section 14: Detailed Directory (.pdf)

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