Water Report
- IRWA Water Rate Study
- Coliform Monitoring Violation Notice
- 2023 Water Report
- 2023 Oreana Water Report
- 2022 Water Report
- 2021 Oreana Water Report
- 2020 Water Quality Report for Oreana, IL
- 2019 Water Quality Report for Oreana, Illinois
- 2018 Water Quality Report for Oreana, Illinois
- 2017 Water Quality Report for Oreana, Illinois
- 2016 Water Quality Report for Oreana, Illinois
- 2015 Water Quality Report for Oreana, Illinois
- 2014 Water Quality Report for Oreana, Illinois
- Important information about lead in your drinking water