OHA Drinking Water Services
OR41
PWS ID: 00225 ---- CORVALLIS, 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
7/26/2023  -  9/20/202310/4/2023 32 3 years 0.0014 0.259
8/8/2020  -  9/3/20209/17/2020 39 3 years 0.0014 0.130
8/8/2017  -  9/29/201710/9/2017 39 3 years 0.0030 0.309
8/13/2014  -  8/21/20149/15/2014 34 3 years 0.0060 0.356
8/17/2011  -  8/18/20119/19/2011 34 3 years 0.0020 0.232
8/19/2008  -  8/21/20089/24/2008 33 3 years 0.0030 0.225
8/24/2005  -  8/25/20059/29/2005 30 3 years 0.0030 0.328
8/15/2002  -  8/16/200210/8/2002 30 3 years 0.0040 0.329
1/1/1999  -  8/27/19999/16/1999 30 3 years 0.0030 0.314
1/1/1996  -  8/27/19969/16/1996 30 1 year 0.0090 0.445
1/1/1995  -  8/19/199510/5/1995 30 1 year 0.0130 0.613
1/1/1994  -  8/16/199410/14/1994 30 1 year 0.0090 0.514
1/1/1993  -  5/28/19936/28/1993 60 6 months 0.0110 0.609
7/1/1992  -  12/7/19921/7/1993 60 6 months 0.0140 0.733


More information for this water system: SDWIS ID 3884
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