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The "Recommended Standards for Wastewater Facilities" by the
Great Lakes - Upper Mississippi River Board of State and Provincial Public
Health and Environmental Managers, commonly referred to as the Ten States
Standards, is referenced in state rules and used by the Iowa DNR to supplement
Iowa's Wastewater Facilities Design Standards. Iowa is represented on the
Board. The 2014 Edition is available online from the
Ten States Standards website. This wastewater facilities design document is an update prepared
jointly by a board including ten Midwestern states and the Province of Ontario.
Iowa DNR does not stock paper copies. A bound paper copy may be obtained
by contacting the Minnesota Department of Administration’s Bookstore. Cost per
copy is $19.95 plus shipping. Online Ordering of this Item No. 14467 can be
1-800-657-3757 for quantity discounts.
The Iowa Wastewater Facilities Design Standards were adopted in the late 1970's and early 1980's. The Iowa DNR has initiated a review of the selected Chapters and revisions have been proposed. The Chapters currently under review are:
Chapter 11 - Project Submittals
Chapter 12 - Iowa Standards for Sewer Systems
Chapter 13 - Wastewater Pumping Stations and Force Mains
Chapter 14 - Wastewater Treatment WorksChapter 18c - Wastewater Treatment Ponds (Lagoons)
Copies of these Chapters with proposed revisions can be downloaded using the links below. The Iowa DNR welcomes any questions or comments from anyone who has an interest in this program update.
Please send your questions and comments to:
Wastewater Engineering Section
Iowa Department of Natural Resources
502 East Ninth Street, Des Moines, Iowa 50319