OHA Drinking Water Services
OR41
PWS ID: 93971 ---- GREEN ACRES ELEM
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
7/11/2023  7/21/2023 5 3 years 0.0018 0.425
6/8/2020  6/16/2020 5 3 years 0.0050 0.060
9/26/2017  10/5/2017 5 3 years 0.0036 0.180
6/17/2014  7/2/2014 5 3 years 0 0.130
6/13/2011  7/8/2011 5 3 years 0.0033 0.110
9/16/2008  10/3/2008 5 3 years 0.0090 0.250
8/9/2005  8/29/2005 5 3 years 0.0078 0.180
6/11/2002  1/21/2003 5 3 years 0.0011 0
1/1/1999  -  5/21/19998/31/1999 5 1 year 0.0017 0
1/1/1998  -  6/9/19988/11/1998 5 1 year 0.0011 0
1/1/1997  -  9/24/199712/2/1997 5 1 year 0 0
1/1/1996  -  1/3/19965/28/1996 10 6 months 0.0063 0.070
7/1/1993  -  12/1/19931/4/1994 10 6 months 0.0030 0.120


More information for this water system: SDWIS ID 1506
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