OHA Drinking Water Services
PWS ID: 06118 ---- COLUMBIA HILLS HOA
Excel Spreadsheet

MCL = 10 mg/L; MCL exceedances are indicated with red text.
ND = Not detected at the minimum reporting level.
Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
(mg/L)		 Comments
3180010-01-I 06/29/2023 07/06/2023 NITRATE WELL #14 SRC-AHND
2340038-01-I 12/06/2022 12/13/2022 NITRATE EP FOR WELLS EP-AND
136100801-I 12/27/2021 12/30/2021 NITRATE EP FOR WELLS EP-AND
031703401-I 11/12/2020 11/23/2020 NITRATE EP FOR WELLS EP-AND
932402801-I 11/20/2019 11/26/2019 NITRATE EP FOR WELLS EP-AND
930300302-I 10/29/2019 11/22/2019 NITRATE EP FOR WELLS EP-AND
180105240001-I 11/19/2018 12/05/2018 NITRATE EP FOR WELLS EP-A0.077
71227001-I 12/26/2017 01/09/2018 NITRATE EP FOR WELLS EP-AND
60927111-I 09/26/2016 10/11/2016 NITRATE EP FOR WELLS EP-AND
50818041-I 08/17/2015 08/24/2015 NITRATE EP FOR WELLS EP-AND
40812531-I 08/12/2014 08/25/2014 NITRATE EP FOR WELLS EP-AND
30726081-I 07/26/2013 08/01/2013 NITRATE EP FOR WELLS EP-AND
20423221-I 04/23/2012 05/11/2012 NITRATE EP FOR WELLS EP-AND
14471016-I 12/23/2010 02/28/2011 NITRATE EP FOR WELLS EP-AND
14490772-I 08/30/2010 09/15/2010 NITRATE EP FOR WELLS EP-AND
14490769-I 08/30/2010 09/15/2010 NITRATE EP FOR WELLS EP-AND
14490771-I 08/30/2010 09/15/2010 NITRATE EP FOR WELLS EP-AND
458990N-I 12/31/2008 01/22/2009 NITRATE EP FOR WELLS EP-AND
458992N-I 12/31/2008 01/22/2009 NITRATE EP FOR WELLS EP-AND
458989N-I 12/31/2008 01/22/2009 NITRATE EP FOR WELL #2 (COLU3174) EP-BND
438736-I 12/30/2007 01/09/2008 NITRATE EP FOR WELLS EP-A0.6
438739-I 12/30/2007 01/09/2008 NITRATE EP FOR WELL #2 (COLU3174) EP-BND
A71206AP1-I 12/05/2007 08/18/2008 NITRATE WELL #4 SRC-ACND
400912-I 12/29/2005 01/10/2006 NITRATE EP FOR WELLS EP-A2.5
400913-I 12/29/2005 01/10/2006 NITRATE EP FOR WELL #2 (COLU3174) EP-B3.1
03183/28I 07/02/2003 02/18/2004 NITRATE EP FOR WELLS EP-AND
03183/29I 07/02/2003 02/18/2004 NITRATE EP FOR WELL #2 (COLU3174) EP-BND
 

Archived Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
No archived results found.
 



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