OHA Drinking Water Services
OR41
PWS ID: 91998 ---- NPS OREGON CAVES NATL MON

Most Recent Water System Survey
Survey Date: Jul 11, 2025
Notification Date: Jul 23, 2025 (12 days)
Regulating Agency: DWS (REGION 2)
Survey Frequency: 5 YR  -  Visit the Water System Surveys page to see the list of surveys due each year.
Deficiencies:
Category Deficiency Due Date Resolved Date
Management & Operations No operations and maintenance manualSep 10, 2025 Sep 11, 2025 - Late
Monitoring & Reporting No coliform sampling planSep 10, 2025 Sep 11, 2025 - Late
Disinfection Failure to calculate CT values correctlySep 10, 2025 Sep 11, 2025 - Late
Other Treatment Non-NSF approved chemicalsSep 10, 2025 Jul 23, 2025


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More information for this water system: SDWIS ID 3151
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