OHA Drinking Water Services
OR41
PWS ID: 00024 ---- GRAND PRAIRIE WATER SUPPLY CO
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
8/10/2024  -  8/13/20248/21/2024 5 3 years 0.0014 0.025
8/23/2021  -  8/24/20219/3/2021 5 3 years 0.0005 0.042
8/23/2018  8/29/2018 5 3 years 0.0020 0.064
8/17/2015  9/18/2015 5 3 years 0.0070 0.110
7/13/2012  7/26/2012 5 3 years 0 0.067
8/17/2009  8/24/2009 5 3 years 0 0.033
9/19/2006  10/2/2006 5 3 years 0 0.066
8/26/2003  9/17/2003 5 1 year 0 0.190
9/5/2002  9/24/2002 5 1 year 0.0030 0.017
1/1/2001  -  7/24/20019/10/2001 5 1 year 0 0.114
1/1/1994  -  5/23/19946/20/1994 10 6 months 0.0020 0.100
7/1/1993  -  12/1/199312/27/1993 10 6 months 0.0035 0.140


More information for this water system: SDWIS ID 3216
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