OHA Drinking Water Services
OR41
PWS ID: 00895 ---- WEST HILLS WATER COMPANY
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
7/27/2022  -  7/29/20228/16/2022 5 3 years 0.0030 0.056
9/20/2019  10/3/2019 5 3 years 0 0.075
9/2/2016  -  9/6/20169/26/2016 5 3 years 0 0.134
9/26/2013  10/14/2013 5 3 years 0 0.075
9/16/2010  10/14/2010 5 3 years 0 0
8/21/2007  -  9/24/200710/15/2007 5 3 years 0 0
1/1/1997  -  10/5/199711/18/1997 5 1 year 0.0050 0.460
1/1/1995  -  10/11/199511/13/1995 5 1 year 0.0049 0.941
7/1/1994  -  9/11/199412/12/1994 10 6 months 0.0080 0.540
7/1/1993  -  11/23/19938/24/1994 10 6 months 0.0040 0.690


More information for this water system: SDWIS ID 4080
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