OHA Drinking Water Services
OR41
PWS ID: 00562 ---- CHEHALEM MTN SUN RIDGE WATER CO
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
9/6/2023  9/15/2023 6 3 years 0.0010 0.034
8/27/2020  9/15/2020 5 3 years 0.0010 0.032
8/22/2019  9/5/2019 5 3 years 0 0.081
8/12/2016  -  8/15/20169/19/2016 5 3 years 0.0030 0.143
9/19/2013  10/2/2013 5 3 years 0 0
8/18/2010  -  8/23/201010/14/2010 5 3 years 0 0.040
7/22/2005  -  7/26/20058/8/2005 5 3 years 0.0010 0.100
6/12/2002  7/29/2002 5 3 years 0.0030 0.810
7/1/1999  -  12/20/19993/13/2000 5 6 months 0.0010 0.040
1/1/1999  -  4/27/19997/12/1999 5 6 months 0 0.070
7/1/1993  -  12/7/19931/14/1994 5 6 months 0.0030 1.950


More information for this water system: SDWIS ID 4137
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