OHA Drinking Water Services
OR41
PWS ID: 06138 ---- DIAMOND RIDGE SUBDIVISION
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
9/10/2022  -  9/12/20229/20/2022 5 3 years 0 0
9/25/2019  -  9/27/201910/1/2019 5 3 years 0.0039 0
8/15/2016  9/7/2016 5 3 years 0.0014 0
6/6/2011  7/20/2011 5 6 months 0 0.020
12/16/2010  -  12/20/201012/30/2010 5 6 months 0.0050 0.047


More information for this water system: SDWIS ID 4962
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