OHA Drinking Water Services
OR41
PWS ID: 90607 ---- GRONER ELEMENTARY SD 1J
Lead & Copper

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Detailed Results
Corrosion Control
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90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
9/9/2023  9/19/2023 5 1 year 0 0.650
12/3/2022  12/22/2022 10 6 months 0 1.010
5/21/2022  6/7/2022 10 6 months 0.0030 0.567
9/2/2021  9/15/2021 10 6 months 0 1.080
9/9/2017  5 3 years 0.0050 0.347
6/12/2014  5 3 years 0.0020 0.353
9/13/2012  5 3 years 0.0040 0.104
6/10/2009  6/25/2009 5 3 years 0.0015 0.185
1/19/2006  2/2/2006 5 3 years 0.0080 0
12/17/2002  1/13/2003 5 3 years 0.0025 0.360
1/1/1998  -  10/15/199811/3/1998 5 1 year 0.0074 0.250
1/1/1997  -  6/13/19978/13/1997 5 1 year 0.0030 0.020
1/1/1996  -  10/28/199611/15/1996 5 1 year 0.0066 0.203
1/1/1994  -  6/20/19947/8/1994 10 6 months 0.0040 0.030
7/1/1993  -  8/25/19932/25/1994 10 6 months 0.0110 0.016


More information for this water system: SDWIS ID 721
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