OHA Drinking Water Services
OR41
PWS ID: 95757 ---- COLUMBIA BASIN ONION
Water Quality Alerts

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Alert Date Range: From to
Alert Type
Alert ID Sample Date Alert Date Contact
Report
Response
Time (Days)
Location Analyte
Result
Alert Level MCL Units Sample Type Lab Sample ID SelectAtype FilterAlertDate
TCR TCR-3828 05/28/2025 06/02/2025 07/14/2025 42 DIST-A COLIFORM (TCR) Present Present Routine T5E2807-01 Alert TCR0 2025-06-02
NO3 NO3-465 05/28/2025 06/02/2025 05/30/2025 -3 EP-A NITRATE 14.5 5 10 MG/L T5E2807-01-I Alert Chem CMCL NO30 2025-06-02
NO3 NO3-466 05/30/2025 06/02/2025 05/30/2025 -3 EP-A NITRATE 15.1 5 10 MG/L T5E3003-03-I Alert Chem CMCL NO30 2025-06-02
TCR TCR-3840 05/30/2025 06/04/2025 07/14/2025 40 DIST-A COLIFORM (TCR) Present Present Repeat T5E3003-01 Alert TCR0 2025-06-04
TCR TCR-3842 05/30/2025 06/04/2025 07/14/2025 40 DIST-A COLIFORM (TCR) Present Present Repeat T5E3003-03 Alert TCR0 2025-06-04
Notice - Source TCR-3841 05/30/2025 06/04/2025 07/14/2025 40 SRC-AA COLIFORM (TCR) Present Present Triggered T5E3003-02 Notice Source 2025-06-04
TCR TCR-3881 06/12/2025 06/13/2025 07/14/2025 31 DIST-A COLIFORM (TCR) Present Present Routine T5F1203-03 Alert TCR0 2025-06-13
TCR TCR-3900 06/16/2025 06/18/2025 07/14/2025 26 DIST-A COLIFORM (TCR) Present Present Repeat T5F1614-01 Alert TCR0 2025-06-18



More information for this water system: SDWIS ID 5721
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