OHA Drinking Water Services
OR41
PWS ID: 91908 ---- HIDDEN VALLEY HIGH
Lead & Copper

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Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
7/12/2024  10 3 years 0 0.694
7/12/2024  7/25/2024 10 3 years 0.0026 0.694
7/22/2021  10 3 years 0 0.376
7/22/2021  7/30/2021 10 3 years 0.0010 0.376
6/18/2018  7/7/2018 10 3 years 0.0019 0.376
8/10/2015  9/1/2015 10 3 years 0 0.019
9/13/2012  10/1/2012 10 3 years 0 0.296
9/9/2009  10/19/2009 10 3 years 0 0.029
9/20/2006  11/20/2006 10 3 years 0 0.130
7/8/2003  9/8/2003 10 3 years 0 0.020
1/1/1999  -  12/13/20001/2/2001 10 3 years 0.0010 0.300
1/1/1997  -  6/2/19977/7/1997 10 1 year 0.0007 0.320
1/1/1996  -  6/7/19967/22/1996 10 1 year 0.0008 0.140
1/1/1995  -  6/13/19957/3/1995 10 1 year 0.0010 0.130
1/1/1994  -  6/16/19949/12/1994 20 6 months 0.0010 0.200
7/1/1993  -  8/4/199310/13/1993 20 6 months 0.0010 0.200


More information for this water system: SDWIS ID 1088
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