Indiana Onsite Wastewater Professionals Association


Copyright © 2017 ~Indiana Onsite Wastewater Professionals Association Webdesign donated by: SitesBySweet.com.

Excel File Download Instructions-  Please note, GoDaddy no longer supports direct download of Excel files.  When choosing to view an Excel Spreadsheet from the site you will have to choose OPEN WITH option and choose Microsoft Office Excel (default).  This will open the file and you can then save to your local machine with a file name and location of your choice.

Membership List


If you have questions regarding a membership listing, please contact 317.889.2382. This list is updated twice a year. 


Become a Member


When you join IOWPA you are becoming part of the leading organization whose goal is to educate and inform the homeowners, as well as unite all professions in the onsite industry.   Membership is only $75.00 for the year.


Please click here for the application


You will receive:

Our quarterly printed newsletter

Information regarding upcoming conferences and workshops

Exhibitor opportunities

Certification recognized by more than 40 counties throughout Indiana...and much,much more


To join today, fill out the information attached.


Please make checks payable to IOWPA and mail it to IOWPA, 7915 S. Emerson Ave., Ste 132, Indianapolis, IN 46237-9708.


Your membership confirmation will be mailed to you.