OHA Drinking Water Services
OR41
PWS ID: 00626 ---- PILOT ROCK, CITY OF
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
6/12/2025  7/15/2025 10 3 years 0 0.047
7/13/2022  8/9/2022 10 3 years 0 0.051 4/11/2023
7/31/2019  8/22/2019 10 3 years 0 0.045
6/28/2016  9/6/2016 10 3 years 0 0.080
9/10/2013  10/7/2013 10 3 years 0 0.063
8/18/2010  11/8/2010 10 3 years 0.0040 0.037
6/8/2006  6/30/2006 10 3 years 0 0.086
5/7/2003  8/4/2004 10 3 years 0 0.020
1/1/1997  -  12/30/19974/20/1998 10 1 year 0.0004 0.045
1/1/1996  -  11/26/19967/25/1997 10 1 year 0.0008 0.048
1/1/1995  -  12/5/19951/8/1996 10 1 year 0 0
7/1/1993  -  11/1/199311/24/1993 20 6 months 0 0.100
1/1/1993  -  2/19/19932/26/1993 20 6 months 0 0.060


More information for this water system: SDWIS ID 3777
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