OHA Drinking Water Services
OR41
PWS ID: 94453 ---- ASH GROVE CEMENT WEST-RVRGATE
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
7/29/2025  8/18/2025 5 3 years 0.0010 0.007
7/20/2022  5 3 years 0 0.005
7/20/2022  8/1/2022 5 3 years 0 0.005
7/25/2019  5 3 years 0 0.008
7/25/2019  8/5/2019 5 3 years 0 0.008
9/22/2016  5 3 years 0 0.010
9/22/2016  10/11/2016 5 3 years 0.0009 0.010
7/17/2013  8/1/2013 5 3 years 0 0.021
1/26/2012  2/8/2012 5 6 months 0.0012 0.018
11/29/2011  12/15/2011 5 6 months 0.0052 0.036


More information for this water system: SDWIS ID 1771
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