OHA Drinking Water Services
OR41
PWS ID: 00500 ---- MADRAS, CITY OF
Lead & Copper

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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
7/13/2021  -  7/16/20217/31/2021 20 3 years 0 0.026
8/28/2018  -  9/11/20189/21/2018 21 3 years 0 0.031
9/2/2015  -  9/8/201510/5/2015 20 3 years 0.0020 0.030
9/12/2012  -  9/14/201210/5/2012 20 3 years 0 0.032
9/9/2009  -  9/14/200910/1/2009 20 3 years 0.0030 0
9/11/2006  10/25/2006 20 3 years 0.0090 0.074
9/10/2003  -  9/16/200310/16/2003 10 3 years 0.0013 0.026
7/28/2000  -  8/3/200011/4/2002 10 3 years 0.0015 0.040
1/1/1997  -  12/18/19971/20/1998 20 1 year 0.0007 0.019
1/1/1996  -  7/3/19968/20/1996 20 1 year 0.0010 0.033
1/1/1995  -  3/7/19956/5/1995 20 1 year 0.0010 0.049
7/1/1994  -  11/22/19948/27/1997 40 6 months 0.0010 0.100
7/1/1993  -  12/27/19939/1/1994 40 6 months 0.0010 0.075


More information for this water system: SDWIS ID 4048
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