OHA Drinking Water Services
OR41
PWS ID: 00944 ---- WEST LINN, CITY OF
Lead & Copper

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Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
6/5/2024  -  8/9/2024 30 3 years 0 0.040
6/5/2024  -  8/9/20248/26/2024 30 3 years 0.0018 0.040 8/21/2024
6/1/2021  -  6/5/2021 31 3 years 0 0
6/1/2021  -  6/5/20216/30/2021 31 3 years 0 0 6/30/2021
6/5/2018  -  6/7/2018 32 3 years 0 0
6/5/2018  -  6/7/20187/12/2018 32 3 years 0 0 7/10/2018
6/1/2015  -  6/8/20156/29/2015 30 3 years 0.0030 0.056
6/5/2012  -  6/8/20126/14/2012 30 1 year 0 0.068
6/2/2011  -  6/9/20117/8/2011 30 1 year 0 0
6/4/2010  -  6/11/201011/10/2010 30 1 year 0.0080 0
11/2/2009  -  11/6/200912/10/2009 60 6 months 0.0030 0
6/9/2009  -  6/17/20097/10/2009 60 6 months 0.0080 0
8/14/2008  -  8/27/20082/6/2009 60 6 months 0.0230 0
3/6/2006  4/21/2006 60 6 months 0.0260 0.180
10/19/2005  -  10/31/200511/16/2005 60 6 months 0.0070 0.110
7/28/2005  -  8/1/20058/12/2005 30 3 years 0.0270 0.026
6/13/2002  -  8/9/20029/4/2002 30 3 years 0.0140 0.210
6/29/1999  -  8/4/19999/1/1999 30 3 years 0.0130 0.100
1/1/1996  -  6/26/19969/26/1996 30 1 year 0.0020 0.300
1/1/1995  -  7/14/19959/12/1995 30 1 year 0.0030 0.170
1/1/1994  -  6/1/199410/12/1994 30 1 year 0.0030 0.250
7/1/1993  -  9/29/199312/8/1993 60 6 months 0.0080 0.290
1/1/1993  -  6/6/19937/6/1993 60 6 months 0.0080 0.390
7/1/1992  -  12/6/19921/6/1993 60 6 months 0.0250 0.791


More information for this water system: SDWIS ID 4083
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