OHA Drinking Water Services
OR41
PWS ID: 95037 ---- TANGENT BUSINESS PARK
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
7/18/2023  8/2/2023 5 3 years 0.0133 0.354
9/26/2020  -  9/28/202010/1/2020 5 3 years 0.0026 0.268
8/16/2017  -  8/18/20178/24/2017 5 3 years 0.0027 0.280
9/11/2014  9/22/2014 5 3 years 0.0062 0.230
7/22/2011  8/18/2011 5 3 years 0.0026 0.375
7/22/2008  -  7/23/20088/6/2008 5 3 years 0 0.370
9/8/2005  9/27/2005 5 3 years 0.0075 0.465
9/23/2002  10/14/2002 5 3 years 0 0.200
1/1/2001  -  9/24/20011/15/2002 5 1 year 0.0018 0.470
1/1/2000  -  9/26/200010/20/2000 5 1 year 0 0.410
7/1/1999  -  8/30/19999/17/1999 5 6 months 0.0012 0.381
7/1/1998  -  12/3/199812/31/1998 5 6 months 0.0034 0.639


More information for this water system: SDWIS ID 4462
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