OHA Drinking Water Services
OR41
PWS ID: 00958 ---- YONCALLA, CITY OF

Most Recent Water System Survey
Survey date: Jun 18, 2025
Notification date: Jul 16, 2025 (28 days)
Regulating agency: DWS (REGION 2)
Survey frequency: 3 YR  -  Visit the Water System Surveys page to see the list of surveys due each year.
Significant deficiencies and unmet rule requirements:
Category Significant deficiency or unmet rule requirement Due date Resolved date
Disinfection Unable to demonstrate minimum CTs are metMay 15, 2026 *
Disinfection No means to adequately determine flow rate on contact chamber effluent lineMay 15, 2026 *
Disinfection pH, temperature, and chlorine residual not measured daily at first userMay 15, 2026 *
Disinfection Failure to calculate CT values correctlyMay 15, 2026 *
Disinfection No means to adequately determine disinfection contact time under peak flow and minimum storage conditionsMay 15, 2026 *
Cross Connection Annual summary report not issued (CWS)Sep 03, 2025 Oct 09, 2025 - Late
Cross Connection Testing records not current (CWS, NTNC, TNC)Sep 03, 2025 Oct 09, 2025 - Late
Bold text indicates a significant deficiency. All others are unmet rule requirements.
* A corrective action plan has been submitted for this significant deficiency or unmet rule requirement.


 Show Site Visit History