OHA Drinking Water Services
OR41
PWS ID: 91660 ---- CASCADES ELEMENTARY
Lead & Copper

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Summary Results
Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
7/11/2023  -  8/15/20238/29/2023 7 3 years 0.0223 0.152 2/2/2024
7/10/2020  7/17/2020 5 3 years 0 0
6/27/2017  7/10/2017 5 3 years 0.0095 0
6/17/2014  7/2/2014 5 1 year 0 0
6/11/2013  6/26/2013 5 1 year 0.0077 0
6/6/2012  -  6/7/20126/27/2012 5 1 year 0.0038 0.330
9/12/2011  -  10/11/201111/2/2011 10 6 months 0.0095 0.380
3/8/2011  3/23/2011 10 6 months 0.0060 0.490
6/8/2010  7/7/2010 10 6 months 0.0080 0.450
9/11/2009  9/30/2009 10 1 year 0.0094 0.450
6/3/2008  6/13/2008 5 3 years 0.0199 0.420
8/9/2005  8/29/2005 5 3 years 0.0029 0.375
6/11/2002  -  6/21/20021/21/2003 5 3 years 0.0034 0.443
1/1/1999  -  5/24/19998/31/1999 5 1 year 0 0.118
1/1/1998  -  6/8/19988/11/1998 5 1 year 0.0028 0.269
1/1/1997  -  9/25/199712/2/1997 5 1 year 0.0021 0.156
1/1/1996  -  1/3/19965/28/1996 10 6 months 0.0077 0.490
7/1/1993  -  12/1/19931/4/1994 10 6 months 0.0070 0.780


More information for this water system: SDWIS ID 971
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