OHA Drinking Water Services
OR41
PWS ID: 00453 ---- LA GRANDE, CITY OF
Lead & Copper

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Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
8/2/2023  -  8/16/2023 31 3 years 0 0.023
8/2/2023  -  8/16/20239/8/2023 31 3 years 0 0.023 9/18/2023
8/18/2020  -  8/19/2020 30 3 years 0 0.021
8/18/2020  -  8/19/20209/18/2020 30 3 years 0 0.021 9/21/2020
9/12/2017  -  9/20/2017 32 3 years 0 0.025
9/12/2017  -  9/20/201710/11/2017 32 3 years 0 0.025 10/11/2017
6/10/2014  -  6/20/2014 30 3 years 0 0.021
6/10/2014  -  6/20/20147/9/2014 30 3 years 0 0.021
6/6/2011  -  6/20/20116/27/2011 30 3 years 0.0013 0.037
6/10/2008  -  6/18/20086/27/2008 30 3 years 0 0.009
6/14/2005  -  6/23/20057/25/2005 30 3 years 0.0020 0.013
6/11/2002  -  6/25/20027/25/2002 30 3 years 0.0010 0.016
1/1/1999  -  7/18/19998/30/1999 30 3 years 0.0020 0.022
1/1/1996  -  7/23/19968/27/1996 30 1 year 0.0005 0.047
1/1/1995  -  6/22/19957/31/1995 30 1 year 0 0
1/1/1994  -  6/27/19948/15/1994 30 1 year 0 0
1/1/1993  -  1/23/19932/23/1993 60 6 months 0.0010 0
7/1/1992  -  7/27/19928/27/1992 60 6 months 0.0020 0


More information for this water system: SDWIS ID 3745
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