OHA Drinking Water Services
OR41
PWS ID: 93711 ---- CORVALLIS WALDORF ASSOCIATION
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
12/21/2024  1/3/2025 8 6 months 0.0056 0.140
7/26/2023  8/10/2023 6 3 years 0.0024 0.151
6/1/2020  6/12/2020 5 3 years 0.0025 0.240
9/15/2017  9/29/2017 5 6 months 0.0050 0.311
3/5/2017  3/14/2017 5 6 months 0.0040 0.270
9/16/2016  9/26/2016 5 6 months 0.0027 0.394
3/12/2016  3/18/2016 5 6 months 0.0027 0.301
9/23/2015  10/7/2015 5 6 months 0.0031 0.236
3/17/2015  3/26/2015 5 6 months 0.0573 0.309
9/12/2014  9/22/2014 5 6 months 0.0501 0.217
3/14/2014  3/21/2014 5 6 months 0.0950 0.360
9/13/2013  10/3/2013 5 6 months 0.0950 0.700
2/8/2013  2/20/2013 5 6 months 0.0074 0.230
9/14/2012  10/10/2012 5 6 months 0.0083 0.440
3/23/2012  4/5/2012 5 6 months 0.0262 0.300
8/4/2011  10/25/2011 1 6 months 0.0051 0
1/21/2011  2/9/2011 5 6 months 0.1120 0.380
6/11/2010  6/30/2010 5 3 years 0.3270 0.170
11/30/2007  12/11/2007 5 3 years 0.0134 0.235
1/1/2000  -  6/22/200010/11/2001 5 1 year 0.0086 0.180
1/1/1998  -  6/25/19987/6/1998 5 1 year 0.0140 0.340
1/1/1997  -  6/23/19972/23/1998 5 1 year 0.0042 0.560
1/1/1996  -  6/25/19962/23/1998 10 6 months 0.0120 0.590
7/1/1995  -  12/20/19957/23/1997 10 6 months 0.0070 0.750
1/1/1994  -  3/21/19947/14/1994 10 6 months 0.0460 0.400
7/1/1993  -  11/13/19931/18/1994 10 6 months 0.0190 0.440


More information for this water system: SDWIS ID 1417
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