OHA Drinking Water Services
OR41
PWS ID: 00798 ---- SEAL ROCK WATER DISTRICT
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
5/24/2024  -  5/29/20246/13/2024 36 6 months 0.0008 0.113
11/10/2023  -  11/22/202312/1/2023 40 6 months 0.0051 0.169
2/24/2023  -  3/14/20233/28/2023 40 6 months 0.0051 0.153
8/30/2022  -  9/19/20229/28/2022 40 6 months 0.0038 0.170
9/1/2020  -  9/16/2020 20 3 years 0 0
9/8/2017  -  9/27/2017 20 3 years 0.0035 0
9/10/2014  20 3 years 0 0
9/21/2011  10/20/2011 20 3 years 0 0
9/24/2008  -  9/26/200810/15/2008 20 3 years 0.0090 0
7/19/2005  -  7/20/200510/3/2005 20 3 years 0 0
8/14/2002  -  8/21/20029/23/2002 20 3 years 0.0075 0.061
1/1/1999  -  8/17/19999/1/1999 20 3 years 0.0024 0.146
1/1/1996  -  8/8/19969/30/1996 20 3 years 0.0089 0.152
1/1/1995  -  8/13/199510/17/1995 20 1 year 0.0072 0.118
1/1/1994  -  8/23/19949/20/1994 20 1 year 0.0052 0.100
1/1/1993  -  11/5/19931/13/1994 20 1 year 0 0.130
7/1/1993  -  7/4/19938/4/1993 40 6 months 0.0025 0
7/1/1992  -  10/2/199211/2/1992 40 6 months 0.0904 0.190


More information for this water system: SDWIS ID 4072
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