OHA Drinking Water Services
OR41
PWS ID: 91972 ---- EWING YOUNG ELEM SD 29J
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
7/7/2023  7/26/2023 5 3 years 0.0050 0.850
7/16/2020  7/27/2020 5 3 years 0.0040 1.220
6/8/2017  6/19/2017 5 3 years 0 0.331
9/15/2014  11/17/2014 5 3 years 0.0020 0.133
9/7/2011  9/23/2011 5 3 years 0 0.148
9/10/2008  10/6/2008 10 3 years 0 0.070
7/27/2005  8/8/2005 8 3 years 0.0040 0.160
1/1/1998  -  12/18/19981/11/1999 5 1 year 0.0020 0.830
1/1/1997  -  10/14/199711/19/1998 5 1 year 0.0160 0.840
1/1/1996  -  5/29/19966/14/1996 5 1 year 0 0.008
1/1/1996  -  1/9/19962/9/1996 10 6 months 0 0.022
7/1/1993  -  7/26/19939/16/1993 10 6 months 0.0014 0.368


More information for this water system: SDWIS ID 3019
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