OHA Drinking Water Services
OR41
PWS ID: 90556 ---- TRIANGLE LAKE HIGH/ELEM SD 90
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
6/29/2023  7/10/2023 5 1 year 0.0014 0.950
9/21/2022  9/28/2022 5 1 year 0.0135 1.120
6/16/2021  7/1/2021 6 1 year 0.0033 0.918
9/28/2020  10/5/2020 5 1 year 0.0029 1.170
6/13/2019  6/19/2019 5 1 year 0.0013 0.592
5/15/2018  5/18/2018 5 6 months 0.0015 0.468
10/31/2017  11/6/2017 5 6 months 0 0.465
2/3/2017  2/9/2017 5 6 months 0 0.462
5/27/2016  6/2/2016 5 6 months 0.0012 1.350
9/18/2015  9/30/2015 5 1 year 0.0031 2.230
6/10/2014  6/16/2014 5 1 year 0.0014 1.330
6/11/2013  6/26/2013 5 3 years 0.0022 1.090
6/10/2010  6/30/2010 5 3 years 0 1.010
6/3/2009  6/17/2009 5 1 year 0 0.810
9/9/2008  5 1 year 0 0.935
9/25/2007  10/8/2007 5 1 year 0 1.065
10/8/2006  -  10/9/200610/18/2006 10 6 months 0 0.630
3/2/2006  -  4/19/20065/19/2006 10 6 months 0 1.270
12/1/2005  1/10/2006 10 6 months 0.0118 2.070
9/29/2004  10/18/2004 5 3 years 0 1.445
1/1/2001  -  3/15/20014/5/2001 10 6 months 0 0.315
7/1/2000  -  9/28/200011/1/2000 10 6 months 0.0030 0.570
1/1/2000  -  2/29/20004/3/2000 10 6 months 0 1.630
1/1/1995  -  1/29/19954/10/1995 10 6 months 0.0300 4.380
7/1/1994  -  9/13/199411/14/1994 10 6 months 0.0358 4.050


More information for this water system: SDWIS ID 700
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