OHA Drinking Water Services
OR41
PWS ID: 95591 ---- AMAZON DATA UMATILLA PDX063
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
1/8/2025  1/27/2025 6 6 months 0.0006 0.097
7/15/2024  7/30/2024 6 6 months 0 0.065
2/13/2024  2/29/2024 5 6 months 0.0049 2.350
8/22/2023  -  9/21/202310/12/2023 7 1 year 0.0130 1.940
9/13/2022  7/12/2023 5 1 year 0 0.110
7/29/2021  8/16/2021 5 1 year 0 0.022
2/17/2020  4/8/2020 5 6 months 0 0.840
8/13/2019  8/26/2019 5 6 months 0.0009 0.960


More information for this water system: SDWIS ID 5465
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