OHA Drinking Water Services
OR41
PWS ID: 00558 ---- CHEHALEM VALLEY 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  -  7/11/20237/27/2023 5 3 years 0.0020 0.158
8/12/2020  -  8/17/20208/28/2020 5 3 years 0.0050 0.111
9/29/2017  10/10/2017 5 3 years 0 0.047
9/17/2014  -  9/19/201410/9/2014 5 3 years 0 0.123
9/28/2011  -  10/2/201110/21/2011 5 3 years 0.0030 0
10/21/2008  -  10/22/200811/20/2008 5 3 years 0.0030 0.125
9/22/2005  10/11/2005 5 1 year 0.0035 0.070
1/1/2000  -  5/6/20006/8/2000 10 6 months 0.0030 0.240
7/1/1993  -  10/4/199311/4/1993 10 6 months 0.0160 1.400


More information for this water system: SDWIS ID 4703
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