OHA Drinking Water Services
OR41
PWS ID: 01398 ---- RALPH TAYLOR TRAILER COURT
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
9/10/2025  9/29/2025 5 3 years 0.0099 0.600
9/29/2021  10/6/2021 5 1 year 0.0012 0
9/24/2020  10/5/2020 5 1 year 0.0041 0.419
9/10/2019  -  9/11/201910/4/2019 5 1 year 0.0049 0.468
9/28/2018  10/9/2018 5 1 year 0.0008 0
8/10/2017  9/6/2017 5 1 year 0.0068 0.236
7/13/2016  8/22/2016 5 1 year 0 0
9/22/2015  10/9/2015 5 6 months 0.0010 0.056
12/9/2014  12/18/2014 5 6 months 0.0032 0.250


More information for this water system: SDWIS ID 3638
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