• Ames WPC
    The City of Ames Water Pollution Control Facility has an average daily flow of 6 MGD.
    In operation since 1989, the plant has earned the Platnium 25 Award with no violations since it went online.
    The facility is tied for the 3rd longest record in the Country.
  • City of Osceola WWTP

    The City of Osceola Wastewater Treatment Plant was built in 1974. It now serves a population of approximately 4800. Plans are being made for a new activated sludge plant to replace the current trickling filter plant on the same site.

  • Indianola WPCF

    The Indianola Water Pollution Control Facility was built in 1978 for a population of 11,000. The current population is over 15,000 and the City is currently moving forward in building a new activated sludge plant.

  • The City of Knoxville Water Reclamation Facility

  • City of Council Bluffs WPCF.

Our Mission

The Iowa Water Environment Association, founded in 1927, exists today as an organization of professionals committed to the education and advancement of water quality and water pollution control techniques. The 600 plus members consist of educators, operators, engineers, regulators, municipal officials, manufacturers and equipment suppliers, contractors, and students.


Find information on joining WEF and/or IAWEA.


See information from our award-winning Biosolids Committee.

Collection Systems

See information from the Collection Systems Committee.


See information from the Maintenance Committee.


The 20th Annual IAWEA Maintenance Conference will be held on January 31 - February 1, 2017 at the FFA Enrichment Center on the DMACC Ankeny Campus.  Online registration is available by clicking on...

Registration is now available to join or renew as an IAWEA Iowa Only member.  Membership is $30.00 per year and it provides generous discounts to most IAWEA-sponsored training.  You will also...

Governor Branstad has issued a proclamation designating the week of July 17-23, 2016 as Water and Wastewater Workers of Iowa Week.  You can read the proclamation in full by clicking on the...

The IAWEA Executive Board is once again urging members to complete applications for the WEF Quarter Century Operator Club.  The Quarter Century Operator Club recognizes operators of wastewater...


IAWEA members can register on this site to see materials from past conferences and other "members only" material!

You must be a current IAWEA member. Your request may take a short time to complete. You will receive a confirmation email when you are accepted.


IAWEA 2017 Maintenance Conference

Jan 31 2017 - 8:00am to Feb 1 2017 - 4:00pm

IAWEA 2017 Collection Systems Conference

Mar 1 2017 - 8:00am to Mar 3 2017 - 4:00pm

IAWEA 2017 Annual Conference

Jun 7 2017 - 8:00am to Jun 8 2017 - 4:00pm

About WEF

The Water Environment Federation (WEF) is a not-for-profit technical and educational organization of 34,000 individual members and 75 affiliated Member Associations representing water quality professionals around the world. Since 1928, WEF and its members have protected public health and the environment. As a global water sector leader, our mission is to connect water professionals; enrich the expertise of water professionals; increase the awareness of the impact and value of water; and provide a platform for water sector innovation. To learn more, visit www.wef.org.