OHA Drinking Water Services
OR41
PWS ID: 94141 ---- STUDENT TRANSPORTATION OF AMERICA
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
6/21/2024  7/3/2024 5 3 years 0.0149 0.275
9/15/2015  5 3 years 0 0
9/15/2015  10/8/2015 5 3 years 0 0
8/30/2012  5 3 years 0 0
8/30/2012  10/10/2012 5 3 years 0 0
7/29/2009  8/14/2009 5 3 years 0.0048 0
12/27/2006  1/11/2007 5 3 years 0 0.140
8/21/2002  9/23/2002 5 3 years 0 0.044
1/1/1999  -  9/22/199911/10/1999 5 1 year 0 0.161
1/1/1998  -  10/1/199811/16/1998 5 1 year 0 0.202
1/1/1997  -  9/8/199711/21/1997 5 1 year 0 0.353
1/1/1994  -  6/23/19947/12/1994 5 6 months 0.0013 0.104
7/1/1993  -  10/20/19939/10/1993 5 6 months 0.0021 0.545


More information for this water system: SDWIS ID 1606
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