OHA Drinking Water Services
PWS ID: 00356 ---- GRASS VALLEY WATER SYSTEM
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
X044471A-I 01/07/2021 01/29/2021 NITRATE EP FOR WELLS #1 & #3 EP-A2.18
X040067A-I 01/14/2020 01/30/2020 NITRATE EP FOR WELLS #1 & #3 EP-A2.11
X035585A-I 01/03/2019 02/07/2019 NITRATE EP FOR WELLS #1 & #3 EP-A1.26
X030866A-I 01/04/2018 01/09/2018 NITRATE EP FOR WELLS #1 & #3 EP-AND
X0255250A-I 01/05/2017 01/26/2017 NITRATE EP FOR WELLS #1 & #3 EP-A1.6
X020920A-I 01/07/2016 01/22/2016 NITRATE EP FOR WELLS #1 & #3 EP-A2.8
X017371A-I 01/11/2015 01/20/2015 NITRATE EP FOR WELLS #1 & #3 EP-A1.65
X014147A-I 01/04/2014 01/23/2014 NITRATE EP FOR WELLS #1 & #3 EP-A1.64
X012386-I 05/21/2013 06/07/2013 NITRATE EP FOR WELLS #1 & #3 EP-A1.57
X011417A-I 01/14/2013 01/22/2013 NITRATE EP FOR WELLS #1 & #3 EP-A1.22
X09902-I 06/11/2012 06/20/2012 NITRATE EP FOR WELLS #1 & #3 EP-A1.62
X08756AB-I 01/04/2012 01/19/2012 NITRATE EP FOR WELLS #1 & #3 EP-A1.53
X05762A-I 01/02/2011 01/18/2011 NITRATE EP FOR WELLS #1 & #3 EP-A1.89
X05439A-I 11/05/2010 11/10/2010 NITRATE EP FOR WELLS #1 & #3 EP-AND
254-I 04/21/2008 04/24/2008 NITRATE EP FOR WELLS #1 & #3 EP-A2.2
255-I 04/21/2008 04/24/2008 NITRATE EP FOR WELLS #1 & #3 EP-A2.1
A60104O-1 01/03/2006 01/10/2006 NITRATE EP FOR WELLS #1 & #3 EP-A1.6
A30508S-1I 05/07/2003 06/24/2003 NITRATE EP FOR WELLS #1 & #3 EP-A1.6
444 08/07/2002 08/12/2002 NITRATE EP FOR WELLS #1 & #3 EP-A0.7
445 08/07/2002 08/12/2002 NITRATE EP FOR WELLS #1 & #3 EP-A0.7
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
062 03/07/2001 03/12/2001 Nitrate WELLFIELD (WELLS #1 & #2) A1.48
2100N 03/06/2000 03/27/2000 Nitrate WELLFIELD (WELLS #1 & #2) A2.54
757 04/13/1999 12/17/1999 Nitrate WELL #2 AB1.7
980507DO*A 05/06/1998 06/10/1998 Nitrate WELLFIELD (WELLS #1 & #2) A1.6
9050 12/03/1997 12/08/1997 Nitrate WELLFIELD (WELLS #1 & #2) A1.47
7219 09/11/1996 09/16/1996 Nitrate WELLFIELD (WELLS #1 & #2) A1.5
6028A 11/14/1995 11/20/1995 Nitrate WELL #1 AA1.96
5022 11/29/1994 12/23/1994 Nitrate WELLFIELD (WELLS #1 & #2) A2.18
93923BB*A 09/22/1993 02/04/1994 Nitrate WELLFIELD (WELLS #1 & #2) A1.7
-1975598 07/30/1992 08/25/1992 Nitrate WELLFIELD (WELLS #1 & #2) A1.7
-1975599 01/02/1990 02/07/1990 Nitrate WELLFIELD (WELLS #1 & #2) A2.9
8348 09/12/1989 04/21/1998 Nitrate WELLFIELD (WELLS #1 & #2) A0.84
-1975600 02/14/1989 04/10/1989 Nitrate WELLFIELD (WELLS #1 & #2) A0.2
-1975601 07/29/1985 07/29/1985 Nitrate WELLFIELD (WELLS #1 & #2) A3.4
 




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System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3321