The Indiana MS4 Partnership is committed to providing guidance and compliance tools for Indiana's NPDES MS4 Stormwater permittees through events such as training and the MS4 Annual Meeting. Our partners offer additional education and opportunities as well. 


2021 Indiana Water Summit

August 9 & 10, 2021 Indianapolis, IN

Registration for the 4th annual Indiana Water Summit on August 9 and 10 is now open! This year, the summit will be offered both in-person and virtual format.


We're excited to be back at the historic Athenaeum with great food, camaraderie and live music! We hope to see you there!

2019 Indiana comparative rate study - st

2021 MS4 Annual Meeting

October 26, 2021 Indianapolis, IN

For more info on the in-person event, click here. If any health guidelines change before then, we will keep you posted. All tickets purchased for the 2020 Annual Meeting will be honored for 2021.


If you have not registered, click the button below! We look forward to seeing you soon!

2019 Indiana comparative rate study - st

MS4 Compliance & Enforcement Training

October 28 & 29, 2021 Franklin, IN

The Indiana MS4 Partnership in collaboration with the NPDES Training Institute will be offering a MS4 Compliance & Enforcement Certified Inspector (MS4CECI) Seminar. Training will be specific to the Indiana MS4 and Construction General Permits.

For more information and how to register, click the button below! 

2019 Indiana comparative rate study - st
2019 Indiana comparative rate study - st