OHA Drinking Water Services
OR41
PWS ID: 00608 ---- OTTER ROCK WATER DISTRICT
Lead & Copper

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Summary Results
Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
8/24/2025  -  8/25/20258/29/2025 8 3 years 0.0031 1.920
9/14/2021  -  9/15/2021 5 3 years 0 0.661
9/14/2021  -  9/15/20219/27/2021 5 3 years 0.0090 0.661 9/27/2021
7/11/2018  5 3 years 0 1.300
7/11/2018  7/13/2018 5 3 years 0 1.300
8/12/2015  5 3 years 0 0.598
8/12/2015  8/17/2015 5 3 years 0 0.598
8/8/2012  5 3 years 0 0.780
8/8/2012  8/22/2012 5 3 years 0 0.780
8/12/2009  9/9/2009 5 3 years 0 0.595
8/23/2006  9/12/2006 5 3 years 0 0.650
8/13/2003  10/7/2003 5 3 years 0.0094 0.850
1/1/1999  -  8/13/20009/21/2000 5 3 years 0 0.961
1/1/1997  -  8/24/19979/24/1997 5 1 year 0 0.718
1/1/1996  -  9/1/19969/16/1996 5 1 year 0.0010 0.940
1/1/1995  -  8/7/19959/20/1995 5 1 year 0.0020 0.830
1/1/1994  -  4/17/19945/17/1994 10 6 months 0.0090 1.300
7/1/1993  -  7/6/19935/5/1994 10 6 months 0.0050 1.300


More information for this water system: SDWIS ID 3380
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