OHA Drinking Water Services
OR41
PWS ID: 95664 ---- COLUMBIA AIRGAS
Lead & Copper

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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
6/10/2025  6/16/2025 5 6 months 0 0.004
9/13/2024  9/23/2024 5 6 months 0 0.013
11/2/2023  11/13/2023 5 6 months 0 0.003
11/22/2022  12/9/2022 5 6 months 0 0


More information for this water system: SDWIS ID 5578
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