OHA Drinking Water Services
OR41
PWS ID: 00121 ---- WALLACE ACRES WATER COMPANY
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
7/24/2023  8/10/2023 5 3 years 0 0.043
7/2/2020  7/20/2020 5 6 months 0 0.025
8/15/2016  -  8/21/20169/21/2016 5 3 years 0 0.054
7/30/2013  9/6/2013 5 3 years 0 0.071
9/16/2010  -  9/17/201010/4/2010 5 3 years 0 0.068
9/13/2007  9/25/2007 5 3 years 0.0045 0.060
6/14/2004  7/7/2004 5 3 years 0.0006 0.008
1/1/2001  -  8/22/200112/17/2001 5 3 years 0 0.052
1/1/1996  -  8/26/199810/21/1998 5 3 years 0.0009 0.053
1/1/1997  -  8/6/19979/16/1997 5 1 year 0 0.058
1/1/1996  -  6/23/19964/2/1997 5 1 year 0 0.033
1/1/1995  -  8/31/199510/4/1995 5 1 year 0.0039 0.055
1/1/1994  -  6/9/19947/11/1994 5 6 months 0 0.055
7/1/1993  -  12/13/19931/21/1994 5 6 months 0.0015 0.039


More information for this water system: SDWIS ID 3711
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