OHA Drinking Water Services
OR41
PWS ID: 01309 ---- HAT ROCK WATER COMPANY
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
6/17/2024  7/22/2024 5 3 years 0 0
9/9/2021  9/27/2021 5 3 years 0 0.063
1/25/2018  2/5/2018 5 6 months 0 0.098
10/5/2017  10/12/2017 5 6 months 0 0.073
9/13/2016  10/3/2016 5 3 years 0.0060 1.002
8/2/2013  9/9/2013 5 3 years 0.0030 0.402
7/1/2010  11/8/2010 5 3 years 0.0022 0.724
7/12/2007  8/2/2007 5 3 years 0.0005 0.880
3/10/2004  3/22/2004 5 3 years 0.0010 0.108
1/1/1997  -  7/7/19978/1/1997 5 1 year 0.0006 1.180
1/1/1996  -  9/18/199610/10/1996 5 1 year 0.0007 0.550
1/1/1995  -  7/10/19957/31/1995 5 1 year 0 0.515
7/1/1994  -  7/7/19947/27/1994 5 6 months 0 0.935
7/1/1993  -  7/8/19937/29/1993 5 6 months 0 0.235


More information for this water system: SDWIS ID 4232
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