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Design Standards

Iowa Wastewater Facilities Design Standards

Complete Set of Chapters, 31 MG
Chapter 11: Project Submittals

Chapter 12: Iowa Standards for Sewer Systems

Chapter 13: Wastewater Pumping Stations and Force Mains

Chapter 14: Wastewater Treatment Works

Chapter 15: Screening and Grit Removal

Chapter 16: Settling

Chapter 17: Sludge Handling and Disposal

Chapter 18a: Fixed Film Media Treatment

Chapter 18b: Activated Sludge Biological Treatment

Chapter 18c: Wastewater Treatment Ponds (Lagoons)

Chapter 19: Supplemental Treatment Processes

Chapter 20: Disinfection

Chapter 21: Land Application of Wastewater

 

 Ten States Standards - 2004 Edition

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 2004 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 Health Education Services at Albany, New York. Cost per copy is $15.00 plus shipping. Their telephone number is 518-439-7286.

You may also order a copy by going to the "10 State Standards" listing at the Health Education Services website.   

Design Standards Update

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 Works

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:

Larry Bryant, P.E.
Wastewater Engineering Section
Iowa Department of Natural Resources
502 East Ninth Street, Des Moines, Iowa 50319
e-mail: Larry.Bryant@dnr.iowa.gov  

Chapter 11 Preliminary Draft - January 28, 2009
Chapter 12 Preliminary Draft - January 28, 2009
Chapter 13 Preliminary Draft - January 28, 2009
Chapter 14 Preliminary Draft - March 19, 2012


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