OHA Drinking Water Services
OR41
PWS ID: 91916 ---- THREE RIVERS SCHOOL DISTRICT OFFICE
Lead & Copper

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Detailed Results
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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
7/11/2024  5 3 years 0 0.045
7/11/2024  7/25/2024 5 3 years 0.0054 0.045
7/1/2021  5 3 years 0 0.019
7/1/2021  7/13/2021 5 3 years 0.0066 0.019
6/18/2018  5 3 years 0 0.066
6/18/2018  6/28/2018 5 3 years 0.0100 0.066
8/10/2015  5 3 years 0 0.003
8/10/2015  9/1/2015 5 3 years 0 0.003
9/14/2012  5 3 years 0 0.031
9/14/2012  10/1/2012 5 3 years 0 0.031
9/9/2009  10/19/2009 5 3 years 0.0104 0.067
9/20/2006  11/20/2006 5 3 years 0.0040 0.069
7/8/2003  9/8/2003 5 3 years 0.0010 0.020
1/1/1999  -  12/13/20001/2/2001 5 3 years 0.0040 0.058
1/1/1997  -  6/2/19977/7/1997 5 1 year 0.0071 0.110
1/1/1996  -  6/6/19967/22/1996 5 1 year 0.0040 0.084
1/1/1995  -  6/14/19957/3/1995 5 1 year 0.0040 0.080
1/1/1994  -  6/16/19949/12/1994 5 6 months 0.0030 0.080
7/1/1993  -  7/23/199310/13/1993 5 6 months 0.0035 0.120


More information for this water system: SDWIS ID 1094
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