OHA Drinking Water Services
OR41
PWS ID: 95549 ---- THREE RIVERS CHARTER SCHOOL
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
8/27/2021  9/1/2021 5 1 year 0.0033 0.390
9/22/2020  10/1/2020 5 1 year 0.0013 0.466
6/6/2019  6/26/2019 5 1 year 0.0020 0.191
6/8/2018  11/15/2018 5 1 year 0.0008 0.120
11/15/2017  12/8/2017 5 6 months 0.0017 0.330
6/22/2017  7/24/2017 5 6 months 0.0027 0.670


More information for this water system: SDWIS ID 5406
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