OHA Drinking Water Services
OR41
PWS ID: 00727 ---- ST PAUL, CITY OF
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
4/12/2023  4/25/2023 10 6 months 0.0082 0.132 4/27/2023
10/19/2022  10/26/2022 10 6 months 0.0068 0.197 10/31/2022
4/19/2022  5/4/2022 10 6 months 0.0053 0.117 5/5/2022
9/17/2019  10/7/2019 5 3 years 0.0030 0.079 10/7/2019
8/24/2016  -  8/25/20169/12/2016 5 3 years 0.0030 0.335
9/12/2013  9/27/2013 5 3 years 0.0010 0.373
8/20/2010  -  8/23/201011/16/2010 5 3 years 0 0.180
9/20/2007  -  9/21/200710/24/2007 5 3 years 0.0030 0.045
1/4/2004  1/20/2004 5 3 years 0.0030 0.200
1/1/1999  -  9/21/200011/7/2000 5 3 years 0 0
1/1/1997  -  9/16/199711/12/1997 5 1 year 0.0044 0.300
1/1/1996  -  9/12/199610/17/1996 5 1 year 0.0066 0.470
1/1/1995  -  10/2/199510/30/1995 5 1 year 0 0.325
1/1/1994  -  6/20/19947/5/1994 10 6 months 0.0040 0.150
7/1/1993  -  12/12/19931/4/1993 10 6 months 0.0070 0.910


More information for this water system: SDWIS ID 3403
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