OHA Drinking Water Services
OR41
PWS ID: 95179 ---- CHEMEKETA CELLARS
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
9/23/2025  10/1/2025 5 3 years 0.0010 0.234
7/6/2022  7/18/2022 5 3 years 0.0103 0.164
7/22/2019  8/19/2019 5 6 months 0 0
2/15/2019  3/18/2019 7 6 months 0 0.034
7/27/2018  8/13/2018 5 3 years 0.0013 0.071
9/9/2015  10/8/2015 5 3 years 0 0
9/13/2012  10/10/2012 5 3 years 0 0
7/10/2008  8/28/2008 5 3 years 0.0045 0
9/12/2007  10/15/2007 5 1 year 0.0012 0
9/1/2006  11/21/2006 5 1 year 0.0036 0
8/25/2005  10/4/2005 5 1 year 0.0036 0.100
11/18/2004  12/17/2004 5 6 months 0.0040 0.477


More information for this water system: SDWIS ID 4751
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