OHA Drinking Water Services
OR41
PWS ID: 91894 ---- WILLAMETTANS, THE
Lead & Copper

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Corrosion Control
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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
2/7/2024  2/21/2024 5 6 months 0.0073 0.498
7/17/2023  -  7/18/20238/2/2023 5 6 months 0.0085 0.365
2/9/2023  -  2/13/20232/23/2023 5 6 months 0.0068 0.301
9/21/2020  -  9/24/2020 5 3 years 0.0046 0.101
9/19/2017  -  9/20/2017 5 3 years 0.0032 0.175
9/21/2014  5 3 years 0.0093 0.292
9/18/2011  9/23/2011 5 3 years 0.0025 0.307
8/17/2008  9/2/2008 5 3 years 0.0085 0.315
9/5/2005  9/13/2005 5 1 year 0 0.825
7/3/2004  -  7/5/20047/19/2004 5 1 year 0.0050 0.540
11/18/2002  11/25/2002 5 1 year 0 0.060
1/1/2002  -  4/7/20024/15/2002 5 6 months 0 0.520
7/1/1999  -  11/2/199911/15/1999 5 6 months 0.0150 0.320


More information for this water system: SDWIS ID 1079
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