OHA Drinking Water Services
OR41
PWS ID: 00581 ---- OAKLAND, 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
9/25/2024  10/8/2024 13 3 years 0.0010 0.163
7/20/2021  -  7/21/20218/12/2021 14 3 years 0 0.079 10/7/2021
9/2/2020  9/15/2020 11 1 year 0.0030 0.261 10/4/2020
7/30/2019  8/22/2019 13 1 year 0.0020 0.623
8/9/2018  8/23/2018 12 1 year 0 0.166
9/6/2017  10/5/2017 18 1 year 0 0.237 10/19/2017
10/13/2016  11/3/2016 28 6 months 0 0.201
5/19/2016  -  6/23/20167/10/2016 60 6 months 0.0020 0.277 6/28/2016
8/8/2013  8/27/2013 10 3 years 0.0160 0.115
6/4/2010  7/9/2010 14 3 years 0.0060 0.475
8/11/2005  9/9/2005 10 3 years 0.0030 0.081
1/1/1999  -  8/29/200111/13/2001 10 3 years 0.0140 0.381
1/1/1998  -  10/28/199811/16/1998 10 1 year 0 0.984
1/1/1997  -  8/27/19974/20/1998 10 1 year 0.0120 0.976
1/1/1996  -  9/28/199611/13/1996 10 1 year 0.0040 0.598
1/1/1995  -  6/29/19955/15/1996 20 6 months 0.0070 0.130
1/1/1994  -  3/23/19946/10/1994 20 6 months 0.0030 0.760


More information for this water system: SDWIS ID 3979
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