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2020 Water Quality Report Now Available!
The City of Lake Oswego prepares an annual Water Quality Report in accordance with State and Federal regulations, to bring our customers the best available information about the water you drink. We look forward to producing the best quality report we can and sharing our results with our customers. The 2020 report is now available - it is based on data collected during the 2019 calendar year.
Latest Report:
Since 2015, Lake Oswego has reduced paper by providing the Annual Water Quality Report online. If you would like a FREE printed copy, please call 503-534-5741, or fill out the online web form and we will send a copy to your mailing address.
Other Materials:
