OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00587 | ||
| PWS Name: | ONTARIO, CITY OF | ||
| Who Was Contacted: | DUSTIN MOSHER | ||
| Contact Phone: | 541-889-8011 (Email address hidden) | ||
| Contact Date: | 08/21/2025 | ||
| Contacted By: | BAIRD, GREGG (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | MONITORING | ||
| Reasons: | Cyanotoxins |
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| Details: | Upon reviewing historical cyanotoxins monitoring data, OHA came across a lab report for Ontario showing a detection of Microcystin-RR (a microcystin congener) at 0.26 ug/L in raw river water for a sample collected 8/26/14. As a result, OHA is requiring cyanotoxins monitoring be done by Ontario according to OAR 333-061-0510 through 0580. Analysis will be performed by the DEQ lab in Hillsboro. Notified Ontario this date and that DEQ lab will be contacting them soon to discuss sampling logistics. First sampling event scheduled for week of 9/8/25. | ||