OHA Drinking Water Services
PWS ID: 00461 ---- RIVERGROVE WATER DISTRICT
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
122400401-I 08/12/2021 08/17/2021 NITRATE EP FOR WELL #1 EP-A2.6
122400402-I 08/12/2021 08/17/2021 NITRATE EP FOR WELL #2 EP-B3.3
122400403-I 08/12/2021 08/17/2021 NITRATE EP FOR OLSON WELL EP-C1.5
023000901-I 08/17/2020 08/21/2020 NITRATE EP FOR WELL #1 EP-A1.79
023000902-I 08/17/2020 08/21/2020 NITRATE EP FOR WELL #2 EP-B2.51
023001101-I 08/17/2020 09/10/2020 NITRATE EP FOR WELL #2 EP-B2.55
023000903-I 08/17/2020 08/21/2020 NITRATE EP FOR OLSON WELL EP-C0.864
925900501-I 09/16/2019 09/24/2019 NITRATE EP FOR WELL #1 EP-A1.68
925900502-I 09/16/2019 09/24/2019 NITRATE EP FOR WELL #2 EP-B2.49
925900503-I 09/16/2019 09/24/2019 NITRATE EP FOR OLSON WELL EP-C0.954
822500901-I 08/13/2018 08/16/2018 NITRATE EP FOR WELL #1 EP-A1.4
822500902-I 08/13/2018 08/16/2018 NITRATE EP FOR WELL #2 EP-B1.93
822500903-I 08/13/2018 08/16/2018 NITRATE EP FOR OLSON WELL EP-C0.694
732400801-I 11/20/2017 12/01/2017 NITRATE EP FOR WELL #1 EP-A1.68
732400802-I 11/20/2017 12/01/2017 NITRATE EP FOR WELL #2 EP-B2.21
732400803-I 11/20/2017 12/01/2017 NITRATE EP FOR OLSON WELL EP-C0.43
618900901-I 07/07/2016 07/11/2016 NITRATE WELL #1 SRC-AA1.6
618900902-I 07/07/2016 07/11/2016 NITRATE WELL #2 SRC-BA1.9
618900903-I 07/07/2016 07/11/2016 NITRATE OLSON WELL SRC-CA1.5
5211602201-I 08/04/2015 08/07/2015 NITRATE EP FOR WELL #1 EP-A1.82
521602202-I 08/04/2015 08/07/2015 NITRATE EP FOR WELL #2 EP-B2.48
521602203-I 08/04/2015 08/07/2015 NITRATE EP FOR OLSON WELL EP-C0.823
420900802-I 07/28/2014 08/04/2014 NITRATE EP FOR WELL #1 EP-A1.65
420900801-I 07/28/2014 08/04/2014 NITRATE EP FOR WELL #2 EP-B2.18
404301401-I 02/12/2014 02/13/2014 NITRATE EP FOR OLSON WELL EP-CND
332201101-I 11/18/2013 11/22/2013 NITRATE EP FOR WELL #1 EP-A1.5
332201102-I 11/18/2013 11/22/2013 NITRATE EP FOR WELL #2 EP-B2.04
224300601-I 08/30/2012 10/18/2012 NITRATE EP FOR WELL #1 EP-A2
224300602-I 08/30/2012 10/18/2012 NITRATE EP FOR WELL #2 EP-B2.6
122100601-I 08/09/2011 09/12/2011 NITRATE EP FOR WELL #1 EP-A1.7
122100602-I 08/09/2011 09/12/2011 NITRATE EP FOR WELL #2 EP-B1.9
1025103-I 09/08/2010 09/23/2010 NITRATE EP FOR WELL #1 EP-A1.8
1025104-I 09/08/2010 09/23/2010 NITRATE EP FOR WELL #2 EP-B2
0914810-I 05/28/2009 06/25/2009 NITRATE EP FOR WELL #1 EP-A1.8
0914809-I 05/28/2009 06/25/2009 NITRATE EP FOR WELL #2 EP-B1.5
0821014-I 07/28/2008 08/21/2008 NITRATE EP FOR WELL #1 EP-A1.5
0821013-I 07/28/2008 08/21/2008 NITRATE EP FOR WELL #2 EP-B1.6
0728503 10/12/2007 10/24/2007 NITRATE EP FOR WELL #1 EP-A1.4
0728504 10/12/2007 10/24/2007 NITRATE EP FOR WELL #2 EP-B1.6
0627218 09/29/2006 10/24/2006 NITRATE EP FOR WELL #1 EP-A1.5
0627219 09/29/2006 10/24/2006 NITRATE EP FOR WELL #2 EP-B1.8
05250/16 09/07/2005 09/23/2005 NITRATE EP FOR WELL #1 EP-A1
05250/17 09/07/2005 09/23/2005 NITRATE EP FOR WELL #2 EP-B1.2
04236/03 08/23/2004 08/31/2004 NITRATE EP FOR WELL #1 EP-A1.4
04236/04 08/23/2004 08/31/2004 NITRATE EP FOR WELL #2 EP-B1.5
03231/04 08/19/2003 09/04/2003 NITRATE EP FOR WELL #1 EP-A1.2
03231/05 08/19/2003 09/04/2003 NITRATE EP FOR WELL #2 EP-B1.5
02231/03I 08/19/2002 09/26/2002 NITRATE EP FOR WELL #1 EP-A1.1
02231/04I 08/19/2002 09/26/2002 NITRATE EP FOR WELL #2 EP-B1.3
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
0109909 04/09/2001 04/16/2001 Nitrate WELL #1 AA1
0109910 04/09/2001 04/16/2001 Nitrate WELL #2 BA1.2
00119/01 04/28/2000 05/04/2000 Nitrate WELL #1 AA1.4
00119/02 04/28/2000 05/04/2000 Nitrate WELL #2 BA1.4
056/05 02/25/1999 04/01/1999 Nitrate WELL #1 AA1
056/06 02/25/1999 04/01/1999 Nitrate WELL #2 BA1.1
110/02 04/20/1998 04/28/1998 Nitrate WELL #1 AA1.3
110/03 04/20/1998 04/28/1998 Nitrate WELL #2 BA1.2
091/22 04/01/1997 04/09/1997 Nitrate WELL #1 AA1.3
091/23 04/01/1997 04/09/1997 Nitrate WELL #2 BA1
25799-1 01/16/1996 09/16/1998 Nitrate WELL #1 AA0.75
25799-2 01/16/1996 09/22/1998 Nitrate EP for WELL #2 B1.4
16732 05/25/1993 04/14/1995 Nitrate WELL #1 AA1.7
-1969187 07/31/1991 01/07/1992 Nitrate WELL #1 A1
-1969154 07/31/1991 01/07/1992 Nitrate WELL #2 B1.2
-1969188 07/12/1988 08/05/1988 Nitrate WELL #1 A0.45
-1969155 07/12/1988 08/05/1988 Nitrate WELL #2 B0.61
-1969189 07/16/1985 07/16/1985 Nitrate WELL #1 A0.8
 




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