OHA Drinking Water Services
OR41
PWS ID: 00587 ---- ONTARIO, CITY OF
Lead & Copper

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Detailed Results
Corrosion Control
Service Lines
90th Percentile Summary Results

Sample Dates Date
Received		 Sample
Count		 Frequency Lead
(mg/L)		 Copper
(mg/L)		 Consumer
Notice Date
9/17/2024  -  9/20/202410/2/2024 31 3 years 0.0021 0.409
9/7/2021  -  9/10/202110/8/2021 35 3 years 0 0.201 11/3/2021
1/8/2018  -  1/12/20181/26/2018 62 6 months 0 0.272 2/15/2018
7/10/2017  -  7/31/20178/15/2017 60 6 months 0.0022 0.146 8/15/2017
8/14/2014  -  8/20/20149/12/2014 30 3 years 0.0015 0.213
8/29/2011  -  8/30/20119/29/2011 30 3 years 0.0017 0.200
8/26/2008  -  8/28/200810/2/2008 31 3 years 0.0010 0.150
7/13/2005  -  8/10/20059/8/2005 31 3 years 0.0020 0.203
9/4/2002  10/17/2002 23 3 years 0.0020 0.150
1/1/2001  -  10/3/200112/11/2001 30 1 year 0.0020 0.180
1/1/2000  -  8/29/20009/12/2000 30 1 year 0.0020 0.310
1/1/1998  -  7/24/19983/17/1999 30 1 year 0.0020 0.110
1/1/1996  -  9/18/19971/9/1998 30 1 year 0 0.340
1/1/1996  -  12/19/19962/21/1997 30 1 year 0.0180 0.230
1/1/1995  -  8/25/19952/16/1996 30 1 year 0 0.240
1/1/1994  -  8/30/19941/1/1995 30 1 year 0 0.240
7/1/1993  7/30/1993 60 6 months 0.0060 0.340
1/1/1993  -  2/28/19933/29/1993 60 6 months 0 0.270


More information for this water system: SDWIS ID 3898
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