OHA Drinking Water Services
OR41
PWS ID: 00890 ---- LONG PRAIRIE WATER DISTRICT
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
9/25/2021  -  9/27/202110/6/2021 10 3 years 0 0
8/14/2018  -  8/30/20189/17/2018 10 3 years 0 0
8/26/2015  -  8/27/20159/16/2015 10 3 years 0 0
8/28/2012  8/31/2012 10 3 years 0 0.094
9/1/2009  10/9/2009 10 3 years 0.0034 0
9/11/2006  2/14/2007 10 3 years 0 0
9/3/2003  3/30/2005 10 3 years 0.0010 0.200
5/16/2000  3/30/2005 10 1 year 0 0.050
1/1/1997  -  3/22/19975/19/1997 10 1 year 0 0.570
1/1/1995  -  9/25/199511/9/1995 10 1 year 0.0027 0.502
1/1/1994  -  3/11/19948/18/1994 20 6 months 0.0059 0.896
7/1/1993  -  10/15/199311/26/1993 20 6 months 0.0111 0.777


More information for this water system: SDWIS ID 4078
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