IOWWA Conference

(Pre-Conference, January 10, 2023)
Hy-Vee Hall | Iowa Events Center | Des Moines IA


Plans are being finalized for the 24th IOWWA conference!   Great educational opportunities are available throughout the conference.   Session information will be updated below. The exhibit hall will be open to see state-of-the art technology and learn from knowledgeable manufacturing representatives.     Downtown Des Moines area map as well as the Downtown Des Moines Skywalk map are available below in the "Documents and Files" section. 

If you are interested in serving on the IOWWA Board of Directors, please submit a brief bio about yourself to and what you consider the primary reason for your decision to serve the association.  Board members serve three (3) year terms.

 Hilton Des Moines Downtown, 433 Park Street, Des Moines IA.  Register online using the hotel link or call 515-241-1456 and ask for the Iowa Onsite Waste Water Association room block.  The IOWWA Group Code is IOWW1.  One king bed or two queen beds, $143.00/night plus taxes. Room block drops after Dec. 18th. The Hilton is part of the Des Moines Skywalk system and the only hotel directly connected to the Iowa Events Center.
TUESDAY, JANUARY 10, 2023 - IDPH Plumbing Approved Sessions

Session Presenter: Jack Cooper, The CEU Authority
Safety Discipline - 2.0 CE hours | Check-in 7:30 AM; Session 8:00 - 10:00 AM
Plumbing Code Discipline - 2.0 CE hours | Check-in 10:15 AM; Session 10:30 AM to 5:00 PM (Light lunch provided)
Plumbing Discipline - 4.0 CE hours
Must attend BOTH Plumbing Code and Plumbing for CE hours.  
Continuing Education Note:  Safety is not approved for the CIOWTS Credential or IDNR Time of Transfer.  Plumbing Code and Plumbing Disciplines are approved for 6.0 CE hours for the CIOWTS Installer Credential.  Plumbing sessions are NOT approved for the IDNR Time of Transfer inspectors.

TUESDAY, JANUARY 10, 2023 - Certified Installer of Onsite Wastewater Treatment Systems (CIOWTS) Credential Test
Schedule: Check-in 1:00 PM; Instructions 1:15 PM: Test will start promptly at 1:30 PM
Exam Proctor: Trevor Dickerson, Ground N Down LLC
Submit the CIOWTS Test Application to IOWWA prior to December 15, 2022.  The test application can be downloaded at or email to request the CIOWTS test application.    Counties in Iowa that require the CIOWTS credential use the Basic Level credential.
Basic Level Test: 75 multiple choice questions, 2-hour completion time.
Member fee: $125/Non-member $150
You are able to pay the test fee online, however the application is not available online and must be submitted separately.


Aaron Thomas, Principal and Head Basketball Coach, Aplington-Parkersburg High School

In his presentations, the words of Aaron Thomas — IOWWA’s January conference keynoter — impact the lives of individuals, their families and their jobs as he challenges his audiences to not just survive but thrive.  The remarkable story of the Thomas family is one of understanding and forgiveness. It’s a demonstration of how to show incredible strength during one’s darkest hours. Due to his father’s accomplishments and the reaction of the Thomas family to its most tragic moments, Aaron and his family were awarded the Arthur Ashe Award for Courage at the 2010 ESPY Awards. Aaron also received the Missouri Valley Conference 2010 Most Courageous Award.
Session PresenterAllison Blodig, REHS
Title: Understanding Convenience Store and Truck Stop Wastewater
Convenience store and truckstop wastewater is high strength and conventional systems are rarely a good option but are often utilized.  This approach leads to failures and multiple replacement systems in a short time.  This presentation will look at the challenges of the wastewater stream and offer some examples of wastewater influent and treatment trains that can provide long-lasting solutions.
Commercial Treatment System Installation for Long Term Sustainability
Content: Commercial wastewater treatment systems vary from a simple septic tank and drainfield to more complicated systems with multiple tanks/connections and mechanical operations.  This presentation will list critical installation points and discuss ways to avoid issues that could cause performance and maintenance issues in the field. 
Presenter:  Ben Booth, Iowa One Call
Title: Iowa One Call
This session will review safe excavating and damage prevention.  Ben will also review the Iowa One Call requirements.
Session PresenterDr. Sara Heger, University of Minnesota
Title: TSS – Sources, Impacts and Solutions
Content: Total suspended solids (TSS) is found in all wastewater in varying amounts.  The type of facility and activities influence the levels in the raw wastewater.  This presentation will provide an overview of methods of quantifying solids in wastewater and typical levels in raw wastewater.  The sizing of our primary treatment in septic tanks and the use of screens/filters will be discussed.   The reduction of TSS in secondary treatment units such as aerobic units and media filters is another variable impacting TSS.  Microplastics from laundry wastewater will be focused on as potential non-biodegradable solid in our wastewater If the levels are elevated it can impact the clogging of filters/screens, media filters, and soil treatment system.  This presentation will discuss use, design, and management options to reduce the impacts of TSS on system performance and longevity.
Title: Changing Water Usage
Content: This presentation will focus on a study funded by the Water Research Foundation evaluating water use from over 23 utilities and over 1,000 homes showing a 23% reduction in water use since 1999.  The primary sources for the reduction will be discussed along with implications with increased concentrations.  Septic system design and operation considerations will be highlighted.
Title: Compaction - the Enemy of System Longevity
Content: Humans along with all our activities cause widespread soil compaction. Compaction constrains oxygen (O2) movement in the soil and shifts soil toward anaerobic conditions. Less O2 diffusion into the soil leads to a chemically reducing soil environment. Compaction leads to smaller pore spaces and slower infiltration rates.  This presentation will discuss the causes of compaction including wet soils, material handling and the weight of vehicles/equipment, pedestrians, and animals.  It will then focus on avoidance methods and potential solutions for sites have been compacted.
Session Presenter: Brady Kolbet, Mid-Tech Services, Inc.
Title:  GPS/Laser for Septic and Draining 

Session Presenter:  Sam Lines, MBA, Concrete Sealants, Inc.
Title: Watertight Concrete: From Walls to Joints to Risers
Concrete is a porous building material. Liquids and gas will absorb into the material, and in some cases, seep through. Precast concrete is installed in sections with joints. These joints need to be leak resistant. This course will describe and demonstrate products to improve the watertightness of concrete.

Presenters: Katie and Troy Resor, R & R Septic Solutions and Jeff Sherman, Floyd County Env. Health
Title: Installation of Septic Systems with Maintenance in Mind
Investing a small amount of time upfront during the installation can save wasted time and money down the road. It will also eliminate the headaches that you and the service provider will have to deal with. This session will cover small, quick, inexpensive changes to plumbing, electrical and hardware used at the time of installation that will make your life easier later on.  Sampling issues for alternative systems will also be discussed.
Title: The Job's Not Over 'Til the Paperwork is Done
Content: Detailed documentation can save you time, money, and headaches down the road.  For contractors we will talk about tips to improve your time of transfer inspections, invoicing, contracts, and maintenance reports.  We won't forget inspectors either!  We'll touch on ways to enhance your permits, mapping and filing procedures.

Presenters: Brandon Rogers, Rogers Septic; Amber Meixner, Fairfield Precast Concrete and Tim Rozendaal, Norm Rozendaal Tiling
Title: New Installers Class

Presenters: Jeremy Stolba, James “Doc” Joyce, and Andrew Frank, Dave Schmitt Construction; Josh Snyder, Contractor’s Solutions
Title: Confined Space Entry
ContentThis session will explain the equipment used, inspection, and setup of equipment.  We'll also cover the procedure of filling out the confined space permit. Discussion will also include properly fitting harnesses, monitoring condition of confined space, entrance and exit of space.

Session Presenters:   Wayne Vanden Berge, Advanced Pump and Rick Miene, Miene Septic Services
Title:  Septic Pumping
Session Presenters:  Sgt. Robert B. Wittkowski, IA DOT and Rick Miene, Miene Septic Service
 Iowa DOT - Motor Vehicle Enforcement Safety
This session will cover the information on the Iowa Department of Transportation's enforcement on CDL's and pre trip inspections.

If you are interested in donating items for the 2023 IOWWA Conference Raffle or Auction, please contact Will Boston, Wastewater Supply,   We appreciate your support of IOWWA and the onsite wastewater industry.

Many opportunities to showcase your company! Event sponsor opportunities are available to all companies for happenings during the conference.  Receive special recognition throughout the conference as well as specific inclusion in the conference program and on the IOWWA website.  A slide show runs continually during the conference highlighting the conference sponsors and exhibitors. Select "Sponsor Contract" to open the 2023 contract.  Or email and request the sponsor contract!

Advance Pump & Equipment, Inc., Peosta IA - - KEYNOTE | WELCOME
Altorfer Inc.,
Cedar Rapids, IA - - INTERNET ACCESS
Cam Spray,
Cedar Rapids Winpump
Des Moines Winsupply Inc,
Moorman Construction, Inc.
Municipal Supply | Midwest Pipe Supply - | - FULL SCHOLARSHIP AND AUCTION
Premier Tech Water and Environment, Quakertown PA - - PLATINUM PLUS
Rexco Equipment,
Swales Precast, Inc.,
Wastewater Supply
, Riverside IA - - LANYARDS
Waterloo Biofilter Systems, Inc.,
Guelph, ON Canada - - PLATINUM PLUS

The exhibit hall will be open throughout the conference for viewing state-of-the-art technology and learning from knowledgeable company representatives.   A wide range of activities are planned in the exhibit hall including the Wednesday night “President’s Reception.”   Great opportunities to meet and visit with attendees.   You have the option to sign-up for the Wednesday morning opening vendor product showcase.  A slide show also runs continually during the conference highlighting the conference exhibitors and sponsors.   Select "Exhibit Contract" to open the 2023 contract.  Or email and request the exhibit contract!

Advance Pump & Equipment, Inc.,
Peosta IA -
Cam Spray, Iowa Falls IA -
Cedar Rapids Winpump, Cedar Rapids, IA -
Concrete Sealants, Inc., Tipp City OH - 
Contractor Solutions, Des Moines IA -
Des Moines Area Community College, Ankeny IA -
Des Moines Winsupply Inc., Des Moines IA -
Eljen Corp., Windsor CT -
Imperial Industries, Inc.,
Rothschild WI -
Infiltrator Water Technologies, Old Saybrook CT -
Iowa Step and Tank, Toledo IA -
Kahn Tile Supply LLC, New Hampton IA -
Mid-Tech Services, Inc., New Hampton IA -
Municipal Supply | Midwest Pipe Supply - |
Orenco Systems, Inc., Sutherlin OR - 
Polylok, Wallingford CT -
Premier Tech Water and Environment, Quakertown PA -
Prinsco, Willmar MN -
Rexco Equipment, Cedar Rapids, IA -
Roth North America, Syracuse NY -
T.G. Rankin Company, Chesterfield MO -
TG Technical Service
s, Lee's Summit MO -
Wastewater Supply, Riverside IA -
Waterloo Biofilter Systems, Inc., Guelph ON Canada -
Wieser Concrete - Maiden Rock WI -


Set-up:  Tuesday, Jan. 10 – 11:00 AM to 5:00 PM.  (Loading dock is located on the West side of Hy-Vee Hall, entrance on Center St.)
Tear Down:   Thursday, Jan. 12 after 12:30 PM until 5:00 PM

The Iowa Events Center is the exclusive provider of Electric, Utilities, and Internet Services. Please order these services by selecting your event below and following the online order form. For questions, call Exhibitor Services at 515-564-8018 or
Select date: January 2023; select "IOWWA Convention".
Enter 0000 as booth number (booth numbers are not provided prior to the trade show).


The Annual Business Meeting of the Iowa Onsite Waste Water Association (IOWWA) will be held at 12:15 pm on January 12, 2023, at the Hy-Vee Hall | Iowa Events Center | 730 Third Ave., Des Moines IA.  Meeting minutes will be posted along with other prior Annual Business Meeting minutes in the below "Documents & Files" section.

file 2023 Contract SPONSOR.doc 0.08 MB           
file 2023 Contract EXHIBIT.doc 0.08 MB           
file Downtown Des Moines Area Map.pdf 0.28 MB           
file Downtown Des Moines Skywalk Map.pdf 0.18 MB           
file 2022 IOWWA Annual Business Meeting Minutes.pdf 0.11 MB           
file 2021 IOWWA Annual Business Meeting Minutes.pdf 0.14 MB           
file 2020 IOWWA Annual Business Meeting Minutes.pdf 0.44 MB           
file 2019 IOWWA Annual Business Meeting Minutes.pdf 0.43 MB           
file 2018 IOWWA Annual Business Meeting Minutes.pdf 0.35 MB