OHA Drinking Water Services
OR41
PWS ID: 00922 ---- VERNONIA, 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
7/20/2022  8/11/2022 10 3 years 0.0030 0
7/16/2019  8/12/2019 10 3 years 0 0
8/17/2016  -  8/23/201610/6/2016 10 3 years 0 0.059
8/13/2013  -  8/14/20139/4/2013 10 1 year 0.0030 0.051
8/14/2012  -  8/15/20129/5/2012 10 1 year 0.0030 0.090
9/20/2011  10/12/2011 10 1 year 0 0
9/15/2010  10/12/2010 11 1 year 0.0140 0.150
9/16/2009  10/21/2009 20 1 year 0.0040 0.060
8/20/2005  -  8/20/200811/5/2008 20 6 months 0.0140 0.060
3/4/2008  3/25/2008 20 6 months 0.0150 0.140
7/17/2007  8/14/2007 10 1 year 0.0270 0.050
9/21/2004  -  9/23/200410/7/2004 20 1 year 0.0050 0.050
7/22/2003  8/1/2003 20 6 months 0.0080 0.070
1/14/2003  4/3/2003 20 6 months 0.0090 0.220
1/1/1997  -  3/24/19974/21/1997 10 1 year 0.0190 0.645
1/1/1996  -  12/17/19961/28/1997 10 1 year 0.0125 0.917
1/1/1994  -  2/27/19947/1/1994 20 6 months 0.0570 0.670
7/1/1993  -  8/3/19937/1/1994 20 6 months 0.0370 0.731


More information for this water system: SDWIS ID 3998
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