OHA Drinking Water Services
OR41
PWS ID: 00941 ---- WESTRIDGE WATER DISTRICT
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
9/14/2023  9/22/2023 5 3 years 0 0
9/15/2020  9/17/2020 5 3 years 0.0089 0
9/27/2017  10/5/2017 5 3 years 0.0111 0
9/16/2014  10/2/2014 5 3 years 0 0
9/20/2011  10/7/2011 5 3 years 0 0
7/6/2008  7/16/2008 5 3 years 0.0026 0.070
8/18/2005  10/7/2005 5 3 years 0.0034 0
8/21/2002  9/5/2002 5 3 years 0.0045 0.156
1/1/1999  -  11/8/199912/1/1999 5 1 year 0.0016 0.070
1/1/1996  -  8/9/19969/13/1996 5 1 year 0.0025 0.050
1/1/1995  -  8/8/19959/8/1995 5 1 year 0 0.035
1/1/1994  -  4/5/19945/20/1994 5 6 months 0.0014 0.060
7/1/1993  -  8/2/19939/16/1993 5 6 months 0.0074 0.070


More information for this water system: SDWIS ID 3478
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