OHA Drinking Water Services
OR41
PWS ID: 91889 ---- WESTRIDGE MIDDLE SCHOOL SD 76
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
9/30/2016  10/7/2016 5 3 years 0 0.152
9/12/2013  9/27/2013 5 3 years 0 0.090
9/13/2007  9/24/2007 5 3 years 0 0
8/26/2004  9/15/2004 5 3 years 0.0050 0.008
1/1/1999  -  11/9/200111/19/2001 5 3 years 0.0040 0.013
1/1/1998  -  6/14/19987/23/1998 5 1 year 0 0.012
1/1/1997  -  8/27/19979/8/1997 5 1 year 0 0.026
1/1/1995  -  12/4/19954/21/1997 5 1 year 0.0056 0.060
1/1/1994  -  5/3/19945/31/1994 10 6 months 0.0129 0.060
7/1/1993  -  11/4/19931/9/1994 10 6 months 0.0082 0.025


More information for this water system: SDWIS ID 1076
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