Water Quality Reports

The City of Lake Oswego is required by Federal and State law to publish a Consumer Confidence Report (water quality report) every year.  We look forward to producing the best quality report we can and sharing our results with our customers. 

Latest Report:

2017 Water Quality Report

Since 2015, Lake Oswego has reduced paper by providing the Annual Water Quality Report online. Cities or water providers are no longer required to send the reports in the mail. If you would like a FREE printed copy, please call 503-635-0394, or fill out the online webform and we will send a copy to your mailing address.