OHA Drinking Water Services
OR41
PWS ID: 00613 ---- PENDLETON, 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
7/17/2023  -  7/18/20238/3/2023 31 3 years 0.0025 0.118
6/1/2020  -  6/2/20206/11/2020 31 3 years 0.0090 0.100
7/18/2017  -  7/19/20178/3/2017 30 3 years 0.0030 0.135
7/29/2014  -  7/30/20148/18/2014 32 3 years 0.0043 0.134
7/19/2011  -  7/20/20118/1/2011 36 3 years 0.0021 0.139
7/23/2008  8/7/2008 37 3 years 0 0.146
7/13/2005  8/22/2005 30 3 years 0.0020 0.095
7/24/2002  9/9/2002 32 3 years 0 0.170
1/1/1999  -  9/1/199910/22/1999 30 3 years 0.0031 0.160
1/1/1996  -  8/21/19969/13/1996 30 1 year 0.0018 0.180
1/1/1995  -  8/1/19959/5/1995 30 1 year 0.0020 0.170
1/1/1994  -  8/9/19949/2/1994 30 1 year 0.0020 0.180
1/1/1993  -  6/28/19937/28/1993 60 6 months 0.0080 0.980
7/1/1992  -  10/30/199211/30/1992 60 6 months 0.0040 0.520


More information for this water system: SDWIS ID 4231
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