OHA Drinking Water Services
OR41
PWS ID: 01500 ---- SHIELD CREST WATER ASSN
Lead & Copper

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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
7/10/2023  -  8/2/2023 4 3 years 0 0.053
7/10/2023  -  8/2/20238/16/2023 4 3 years 0 0.053
8/13/2020  -  8/14/20208/24/2020 5 3 years 0.0004 0.069
8/31/2016  9/13/2016 5 3 years 0.0005 0.067
9/23/2013  -  9/25/201310/8/2013 5 1 year 0.0005 0.308
9/9/2012  -  9/16/201210/5/2012 5 1 year 0.0006 0.063
7/18/2011  -  7/21/20118/15/2011 5 1 year 0.0015 0.061
7/25/2009  -  7/27/20098/13/2009 5 1 year 0.0005 0.066
9/20/2006  12/11/2006 5 6 months 0.0025 0.098
2/21/2006  6/9/2006 5 6 months 0.0070 0.140


More information for this water system: SDWIS ID 4878
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