OHA Drinking Water Services
OR41
PWS ID: 93774 ---- WEST UNION ELEM SD 1
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
9/9/2023  9/19/2023 5 3 years 0 0.084
9/11/2020  9/23/2020 5 3 years 0.0020 0.074
9/9/2017  9/28/2017 5 3 years 0 0.061
6/12/2014  8/14/2014 5 3 years 0 0
8/1/2011  9/12/2011 5 3 years 0.0025 0
6/10/2009  6/25/2009 5 3 years 0 0
1/19/2006  2/2/2006 5 1 year 0.0015 0.012
12/16/2002  1/13/2003 5 3 years 0 0
1/1/1998  -  9/30/199810/14/1998 5 1 year 0.0015 0.123
1/1/1997  -  6/13/19978/28/1997 5 1 year 0 0.090
1/1/1996  -  9/27/199611/8/1996 5 1 year 0 0.009
1/1/1994  -  5/17/19946/3/1994 10 6 months 0.0020 0.010
7/1/1993  -  10/7/199311/17/1993 10 6 months 0.0020 0.030


More information for this water system: SDWIS ID 1449
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