OHA Drinking Water Services
OR41
PWS ID: 01388 ---- WILLAMETTE WATER COMPANY
Lead & Copper

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Detailed Results
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
8/12/2024  -  8/16/2024 5 3 years 0 0
8/12/2024  -  8/16/20248/30/2024 5 3 years 0 0
9/6/2021  -  9/9/2021 5 3 years 0 0
9/6/2021  -  9/9/20219/24/2021 5 3 years 0 0
8/31/2018  -  9/6/2018 5 3 years 0 0
8/31/2018  -  9/6/20189/14/2018 5 3 years 0 0
6/10/2015  5 3 years 0 0
6/10/2015  6/22/2015 5 3 years 0 0
9/11/2012  -  9/22/2012 7 3 years 0 0.029
9/11/2012  -  9/22/201210/5/2012 7 3 years 0 0.029
7/9/2009  -  7/23/20098/7/2009 7 3 years 0 0.035
8/15/2006  -  8/29/2006 5 3 years 0.0145 0.105
6/23/2003  -  7/3/200312/15/2003 5 3 years 0 0
1/1/2000  -  8/11/20009/22/2000 5 1 year 0.0117 0.125
1/1/1999  -  6/18/19998/12/1999 5 1 year 0 0.026
1/1/1998  -  10/1/199811/3/1998 5 1 year 0.0015 0.070
1/1/1994  -  6/24/19947/20/1994 10 6 months 0.0060 0.160
7/1/1993  -  12/17/19931/18/1994 10 6 months 0.0059 0.330


More information for this water system: SDWIS ID 4092
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