OHA Drinking Water Services
OR41
PWS ID: 94403 ---- COLUMBIA PLYWOOD CORP
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
7/30/2024  5 3 years 0 0.011
7/30/2024  8/12/2024 5 3 years 0.0003 0.011 8/20/2024
7/7/2021  5 3 years 0 0.018
7/7/2021  7/22/2021 5 3 years 0.0008 0.018
7/6/2018  5 3 years 0 0.041
7/6/2018  7/16/2018 5 3 years 0.0012 0.041 7/30/2018
9/7/2014  -  9/9/2014 5 3 years 0 0.022
9/7/2014  -  9/9/20149/15/2014 5 3 years 0.0014 0.022
9/2/2011  10/10/2011 5 3 years 0.0020 0.047
9/8/2008  9/17/2008 5 3 years 0.0015 0.175
3/18/2005  4/11/2005 5 3 years 0 0.085
6/10/2003  6/30/2003 5 3 years 0 0.208
1/1/1996  -  9/7/19981/25/1999 5 3 years 0 0.450
1/1/1997  -  9/1/199710/29/1997 5 1 year 0.0010 0.620
1/1/1996  -  8/31/199611/25/1996 5 1 year 0 0.380
1/1/1995  -  9/4/19959/18/1995 5 1 year 0.0045 0.580
1/1/1994  -  5/30/19948/17/1994 10 6 months 0 0.750
7/1/1993  -  11/17/199312/27/1993 10 6 months 0.0040 0.800


More information for this water system: SDWIS ID 1747
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