OHA Drinking Water Services
PWS ID: 00954 ---- WILSONVILLE, CITY OF
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
202010150105-I 10/14/2020 12/01/2020 NITRATE EP FOR WILLAMETTE RIVER EP-H0.23
202007160188-I 07/15/2020 09/02/2020 NITRATE EP FOR WILLAMETTE RIVER EP-H0.28
202004160157-I 04/15/2020 06/02/2020 NITRATE EP FOR WILLAMETTE RIVER EP-H0.47
202001030119-I 01/02/2020 03/03/2020 NITRATE EP FOR WILLAMETTE RIVER EP-H0.92
201910090408-I 10/08/2019 12/05/2019 NITRATE EP FOR WILLAMETTE RIVER EP-H0.3
201907110430-I 07/10/2019 09/06/2019 NITRATE EP FOR WILLAMETTE RIVER EP-H0.43
201904110241-I 04/10/2019 06/05/2019 NITRATE EP FOR WILLAMETTE RIVER EP-H0.78
201812030009-I 01/09/2019 03/04/2019 NITRATE EP FOR WILLAMETTE RIVER EP-H0.71
201809030044-I 10/10/2018 12/03/2018 NITRATE EP FOR WILLAMETTE RIVER EP-H0.27
201807190944-I 07/18/2018 09/07/2018 NITRATE EP FOR WILLAMETTE RIVER EP-H0.27
201803050004-I 04/11/2018 06/29/2018 NITRATE EP FOR WILLAMETTE RIVER EP-H0.68
201712040042-I 01/10/2018 03/09/2018 NITRATE EP FOR WILLAMETTE RIVER EP-H0.81
201709040015-I 10/11/2017 12/08/2017 NITRATE EP FOR WILLAMETTE RIVER EP-H0.19
201706050014-I 07/12/2017 09/08/2017 NITRATE EP FOR WILLAMETTE RIVER EP-H0.31
201703290188-I 04/12/2017 06/09/2017 NITRATE EP FOR WILLAMETTE RIVER EP-H0.57
4401737591-I 01/18/2017 03/10/2017 NITRATE EP FOR WILLAMETTE RIVER EP-H0.71
4401614981-I 10/12/2016 12/08/2016 NITRATE EP FOR WILLAMETTE RIVER EP-H0.32
4401525421-I 07/13/2016 09/09/2016 NITRATE EP FOR WILLAMETTE RIVER EP-H0.33
4401442271-I 04/13/2016 06/06/2016 NITRATE EP FOR WILLAMETTE RIVER EP-H0.57
4401348141-I 01/13/2016 02/04/2016 NITRATE EP FOR WILLAMETTE RIVER EP-H1
4401348142-I 01/13/2016 02/04/2016 NITRATE EP FOR WILLAMETTE RIVER EP-H1.1
4401242881-I 10/14/2015 12/03/2015 NITRATE EP FOR WILLAMETTE RIVER EP-H0.34
4401145131-I 07/08/2015 09/02/2015 NITRATE EP FOR WILLAMETTE RIVER EP-H0.29
4401063721-I 04/08/2015 06/10/2015 NITRATE EP FOR WILLAMETTE RIVER EP-H0.48
250239041-I 01/14/2015 04/02/2015 NITRATE EP FOR WILLAMETTE RIVER EP-H0.63
250220231-I 10/14/2014 12/04/2014 NITRATE EP FOR WILLAMETTE RIVER EP-H0.25
250200652-I 07/09/2014 09/08/2014 NITRATE COMMON HEADER FOR WTP-H CH-H0.36
250200651-I 07/09/2014 09/08/2014 NITRATE EP FOR WILLAMETTE RIVER EP-H0.33
250183181-I 04/09/2014 06/09/2014 NITRATE EP FOR WILLAMETTE RIVER EP-H0.54
250164721-I 01/08/2014 03/06/2014 NITRATE EP FOR WILLAMETTE RIVER EP-H0.4
250147151-I 10/09/2013 12/06/2013 NITRATE EP FOR WILLAMETTE RIVER EP-H0.4
250129201-I 07/10/2013 09/05/2013 NITRATE EP FOR WILLAMETTE RIVER EP-H0.29
250111261-I 04/10/2013 06/07/2013 NITRATE EP FOR WILLAMETTE RIVER EP-H0.23
25093121-I 01/09/2013 04/08/2013 NITRATE EP FOR WILLAMETTE RIVER EP-H0.74
25074091 10/10/2012 12/07/2012 NITRATE EP FOR WILLAMETTE RIVER EP-H0.17
25047723-I 07/11/2012 09/07/2012 NITRATE EP FOR WILLAMETTE RIVER EP-H0.6
25016861-I 04/11/2012 07/09/2012 NITRATE EP FOR WILLAMETTE RIVER EP-H0.54
250661-I 01/11/2012 05/08/2012 NITRATE EP FOR WILLAMETTE RIVER EP-H0.56
PUJ044001-I 10/12/2011 02/08/2012 NITRATE EP FOR WILLAMETTE RIVER EP-H0.16
PUG036101-I 07/13/2011 10/07/2011 NITRATE EP FOR WILLAMETTE RIVER EP-H0.23
PUD039601-I 04/13/2011 06/09/2011 NITRATE EP FOR WILLAMETTE RIVER EP-H0.39
PUA055101-I 01/19/2011 03/16/2011 NITRATE EP FOR WILLAMETTE RIVER EP-H0.64
PTJ037901-I 10/13/2010 12/08/2010 NITRATE EP FOR WILLAMETTE RIVER EP-H0.27
PTG036501-I 07/14/2010 10/07/2010 NITRATE EP FOR WILLAMETTE RIVER EP-H0.3
PTD041101-I 04/14/2010 07/08/2010 NITRATE EP FOR WILLAMETTE RIVER EP-H0.74
PTA030901RE1-I 01/13/2010 03/09/2010 NITRATE EP FOR WILLAMETTE RIVER EP-H0.8
PSJ044202RE1-I 10/14/2009 12/09/2009 NITRATE EP FOR WILLAMETTE RIVER EP-H0.19
PSG050201-I 07/15/2009 09/09/2009 NITRATE EP FOR WILLAMETTE RIVER EP-H0.32
PSD024801-I 04/08/2009 06/08/2009 NITRATE EP FOR WILLAMETTE RIVER EP-H0.44
PSA038801-I 01/14/2009 03/10/2009 NITRATE EP FOR WILLAMETTE RIVER EP-H0.64
PRJ051301-I 10/15/2008 12/08/2008 NITRATE EP FOR WILLAMETTE RIVER EP-H0.19
0819103-I 07/09/2008 08/03/2008 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.8
0819104-I 07/09/2008 08/03/2008 NITRATE EP FOR WEIDMAN WELL EP-B0.7
0819108-I 07/09/2008 08/03/2008 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
0819107-I 07/09/2008 08/03/2008 NITRATE EP FOR GESELLSHAFT WELL EP-DND
0819109-I 07/09/2008 08/03/2008 NITRATE EP FOR NIKE WELL EP-END
0819105-I 07/09/2008 08/03/2008 NITRATE EP FOR CANYON CREEK EP-FND
0819106-I 07/09/2008 08/03/2008 NITRATE EP FOR BOECKMAN WELL EP-GND
PRD052401-I 04/16/2008 06/09/2008 NITRATE EP FOR WILLAMETTE RIVER EP-H0.46
PRA043001-I 01/16/2008 04/08/2008 NITRATE EP FOR WILLAMETTE RIVER EP-H0.7
PQJ061801 10/17/2007 01/08/2008 NITRATE EP FOR WILLAMETTE RIVER EP-H0.33
PQG060101-I 07/18/2007 09/07/2007 NITRATE EP FOR WILLAMETTE RIVER EP-H0.46
0719208 07/11/2007 08/03/2007 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.6
0719209 07/11/2007 08/03/2007 NITRATE EP FOR WEIDMAN WELL EP-B0.6
0719213 07/11/2007 08/03/2007 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
0719212 07/11/2007 08/03/2007 NITRATE EP FOR GESELLSHAFT WELL EP-DND
0719211 07/11/2007 08/03/2007 NITRATE EP FOR CANYON CREEK EP-FND
0719210 07/11/2007 08/03/2007 NITRATE EP FOR BOECKMAN WELL EP-GND
PQD069301-I 04/18/2007 07/05/2007 NITRATE EP FOR WILLAMETTE RIVER EP-H0.47
PQA048701RE1 01/17/2007 04/10/2007 NITRATE EP FOR WILLAMETTE RIVER EP-H0.56
PPJ076801-I 10/18/2006 12/08/2006 NITRATE EP FOR WILLAMETTE RIVER EP-H0.26
PPG102801-I 07/26/2006 11/09/2006 NITRATE EP FOR WILLAMETTE RIVER EP-H0.43
06193/01 07/12/2006 08/09/2006 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.6
06193/02 07/12/2006 08/09/2006 NITRATE EP FOR WEIDMAN WELL EP-B0.6
06193/07 07/12/2006 08/09/2006 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
06193/05 07/12/2006 08/09/2006 NITRATE EP FOR GESELLSHAFT WELL EP-DND
06193/06 07/12/2006 08/09/2006 NITRATE EP FOR NIKE WELL EP-END
06193/04 07/12/2006 08/09/2006 NITRATE EP FOR CANYON CREEK EP-F0.5
06193/03 07/12/2006 08/09/2006 NITRATE EP FOR BOECKMAN WELL EP-GND
PPD0800-01-I 04/19/2006 08/09/2006 NITRATE EP FOR WILLAMETTE RIVER EP-H0.53
P6A0619-01I 01/18/2006 03/09/2006 NITRATE EP FOR WILLAMETTE RIVER EP-H0.74
05311/16I 11/07/2005 01/09/2006 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.5
05311/19I 11/07/2005 01/09/2006 NITRATE EP FOR WEIDMAN WELL EP-B0.6
05311/14I 11/07/2005 01/09/2006 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
05311/15I 11/07/2005 01/09/2006 NITRATE EP FOR GESELLSHAFT WELL EP-DND
05311/17I 11/07/2005 01/09/2006 NITRATE EP FOR NIKE WELL EP-END
05311/18I 11/07/2005 01/09/2006 NITRATE EP FOR CANYON CREEK EP-FND
05311/13I 11/07/2005 01/09/2006 NITRATE EP FOR BOECKMAN WELL EP-GND
P5J0708-01I 10/19/2005 12/08/2005 NITRATE EP FOR WILLAMETTE RIVER EP-H0.24
P5G0803-01I 07/20/2005 09/08/2005 NITRATE EP FOR WILLAMETTE RIVER EP-H0.35
05187/16N 07/06/2005 08/05/2005 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.7
05187/20N 07/06/2005 08/05/2005 NITRATE EP FOR WEIDMAN WELL EP-B0.7
05187/15N 07/06/2005 08/05/2005 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
05187/18N 07/06/2005 08/05/2005 NITRATE EP FOR GESELLSHAFT WELL EP-DND
05187/19N 07/06/2005 08/05/2005 NITRATE EP FOR NIKE WELL EP-END
05187/21N 07/06/2005 08/05/2005 NITRATE EP FOR CANYON CREEK EP-FND
05187/17N 07/06/2005 08/05/2005 NITRATE EP FOR BOECKMAN WELL EP-GND
P5D0893-01I 04/20/2005 06/08/2005 NITRATE EP FOR WILLAMETTE RIVER EP-H0.68
P5A0644-01I 01/21/2005 03/07/2005 NITRATE EP FOR WILLAMETTE RIVER EP-H0.8
P4J0805-01I 10/20/2004 01/07/2005 NITRATE EP FOR WILLAMETTE RIVER EP-H0.22
P4G0713-01I 07/21/2004 09/07/2004 NITRATE EP FOR WILLAMETTE RIVER EP-H0.34
371896-I 07/16/2004 08/09/2004 NITRATE EP FOR CANYON CREEK EP-FND
04191/05-I 07/09/2004 08/09/2004 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-AND
04191/02-I 07/09/2004 08/09/2004 NITRATE EP FOR WEIDMAN WELL EP-BND
04191/03-I 07/09/2004 08/09/2004 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
04191/01-I 07/09/2004 08/09/2004 NITRATE EP FOR GESELLSHAFT WELL EP-DND
04191/04-I 07/09/2004 08/09/2004 NITRATE EP FOR NIKE WELL EP-END
04191/06-I 07/09/2004 08/09/2004 NITRATE EP FOR BOECKMAN WELL EP-GND
P4D0734-01I 04/21/2004 06/09/2004 NITRATE EP FOR WILLAMETTE RIVER EP-H0.29
P4A0365-01I 01/20/2004 03/08/2004 NITRATE EP FOR WILLAMETTE RIVER EP-H0.79
P3J0631-04I 10/17/2003 12/08/2003 NITRATE EP FOR WILLAMETTE RIVER EP-H0.32
P3H0190-02I 08/06/2003 09/08/2003 NITRATE EP FOR WILLAMETTE RIVER EP-H0.034
03191/14 07/10/2003 09/08/2003 NITRATE EP FOR WEIDMAN WELL EP-B0.6
03191/11 07/09/2003 09/08/2003 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-A0.7
03191/08 07/09/2003 09/08/2003 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
03191/10 07/09/2003 09/08/2003 NITRATE EP FOR GESELLSHAFT WELL EP-DND
03191/09 07/09/2003 09/08/2003 NITRATE EP FOR NIKE WELL EP-END
03191/12 07/09/2003 09/08/2003 NITRATE EP FOR CANYON CREEK EP-FND
03191/13 07/09/2003 09/08/2003 NITRATE EP FOR BOECKMAN WELL EP-GND
P3E0177-02I 05/07/2003 06/09/2003 NITRATE EP FOR WILLAMETTE RIVER EP-H0.72
P3B0199-02I 02/10/2003 03/11/2003 NITRATE EP FOR WILLAMETTE RIVER EP-H0.77
P2K0189-02I 11/06/2002 12/09/2002 NITRATE EP FOR WILLAMETTE RIVER EP-H0.21
P2H0342-03I 08/13/2002 10/09/2002 NITRATE EP FOR WILLAMETTE RIVER EP-H0.28
02176/15I 06/25/2002 08/08/2002 NITRATE EP FOR ELLIGSEN (STAFFORD) WELL EP-AND
02176/16I 06/25/2002 08/08/2002 NITRATE EP FOR WEIDMAN WELL EP-BND
02176/13I 06/25/2002 08/08/2002 NITRATE EP FOR CHARBONNEAU WELLS EP-CND
02176/14I 06/25/2002 08/08/2002 NITRATE EP FOR GESELLSHAFT WELL EP-DND
02176/23I 06/25/2002 08/08/2002 NITRATE EP FOR CANYON CREEK EP-FND
02176/17I 06/25/2002 08/08/2002 NITRATE EP FOR BOECKMAN WELL EP-GND
P2D0139-02I 04/04/2002 04/20/2002 NITRATE EP FOR WILLAMETTE RIVER EP-HND
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
A10731AA*A 07/31/2001 08/28/2001 Nitrate EP FOR ELLIGSEN (STAFFORD) WELL A0.28
A10731AA*B 07/31/2001 08/28/2001 Nitrate EP FOR WEIDMAN WELL B0.2
A10731AA*C 07/31/2001 08/28/2001 Nitrate EP FOR CHARBONNEAU WELLS CND
A10731AADA 07/31/2001 08/28/2001 Nitrate GESELLSHAFT WELL DA0.02
A10731AA*F 07/31/2001 08/28/2001 Nitrate EP FOR CANYON CREEK FND
A10731AAGA 07/31/2001 08/28/2001 Nitrate BOECKMAN WELL GA0.06
179/08 06/28/1999 08/06/1999 Nitrate EP FOR ELLIGSEN (STAFFORD) WELL AND
179/11 06/28/1999 08/06/1999 Nitrate EP FOR WEIDMAN WELL B0.8
179/07 06/28/1999 08/06/1999 Nitrate EP FOR CHARBONNEAU WELLS C0.8
179/09 06/28/1999 08/06/1999 Nitrate EP FOR GESELLSHAFT WELL DND
179/10 06/28/1999 08/06/1999 Nitrate EP FOR NIKE WELL END
179/06 06/28/1999 08/06/1999 Nitrate EP FOR CANYON CREEK FND
179/05 06/28/1999 08/06/1999 Nitrate EP FOR BOECKMAN WELL GND
208/12 07/27/1998 08/06/1998 Nitrate ELLIGSEN WELL (STAFFORD) AAND
208/16 07/27/1998 08/06/1998 Nitrate WIEDEMAN WELL BAND
208/15 07/27/1998 08/06/1998 Nitrate EP FOR CHARBONNEAU WELLS CND
208/13 07/27/1998 08/06/1998 Nitrate GESELLSHAFT WELL DAND
208/14 07/27/1998 08/06/1998 Nitrate NIKE WELL EAND
208/11 07/27/1998 08/06/1998 Nitrate CANYON CREEK WELL FAND
314/04 11/10/1997 12/05/1997 Nitrate ELLIGSEN WELL (STAFFORD) AAND
314/05 11/10/1997 12/05/1997 Nitrate WIEDEMAN WELL BAND
314/02 11/10/1997 12/05/1997 Nitrate EP FOR CHARBONNEAU WELLS CND
314/07 11/10/1997 12/05/1997 Nitrate GESELLSHAFT WELL DAND
314/03 11/10/1997 12/05/1997 Nitrate NIKE WELL EAND
314/06 11/10/1997 12/05/1997 Nitrate CANYON CREEK WELL FAND
960415M*B 08/07/1996 10/30/1996 Nitrate EP FOR WEIDMAN WELL B0.22
960415M*A 04/15/1996 10/30/1996 Nitrate EP FOR ELLIGSEN (STAFFORD) WELL A0.23
960415M*C 04/15/1996 10/30/1996 Nitrate EP FOR CHARBONNEAU WELLS CND
960415MDA 04/15/1996 10/29/1996 Nitrate GESELLSHAFT WELL DA0.02
960415MEA 04/15/1996 10/04/1996 Nitrate NIKE WELL EAND
960415M*F 04/15/1996 10/29/1996 Nitrate EP FOR CANYON CREEK F0.02
23547-2 04/28/1995 05/26/1995 Nitrate ELLIGSEN WELL (STAFFORD) AAND
23547-4 04/28/1995 05/26/1995 Nitrate WIEDEMAN WELL BAND
23547-3 04/28/1995 05/26/1995 Nitrate GESELLSHAFT WELL DAND
23547-1 04/28/1995 05/26/1995 Nitrate NIKE WELL EAND
23547-5 04/28/1995 05/26/1995 Nitrate CANYON CREEK WELL FAND
16271-2 04/02/1993 10/22/1993 Nitrate ELLIGSEN WELL (STAFFORD) - ELLIGSEN WEL AA4.7
16271-1 04/02/1993 10/22/1993 Nitrate CHARBONNEAU WELL #1 - CHARBONNEAU WELL # CAND
16250-3 04/01/1993 10/22/1993 Nitrate WIEDEMAN WELL - WIEDEMAN WELL BA0.15
16250-2 04/01/1993 10/22/1993 Nitrate GESELLSHAFT WELL - GESELLSHAFT DAND
16250-1 04/01/1993 04/21/1995 Nitrate NIKE WELL EAND
16104 03/17/1993 04/24/1995 Nitrate CANYON CREEK WELL FA0.37
-1933296 10/23/1992 12/29/1992 Nitrate ELLIGSEN WELL (STAFFORD) AA0.1
-1933216 10/23/1992 12/29/1992 Nitrate WIEDEMAN WELL BA0.1
-1933142 10/23/1992 12/29/1992 Nitrate CHARBONNEAU WELL #1 CA0.1
-1933009 10/23/1992 12/29/1992 Nitrate CHARBONNEAU WELL #2 CBND
-1933075 10/23/1992 12/29/1992 Nitrate GESELLSHAFT WELL DAND
-1933297 10/13/1989 11/24/1989 Nitrate ELLIGSEN WELL (STAFFORD) AA0.37
-1933217 10/13/1989 11/24/1989 Nitrate WIEDEMAN WELL BA0.21
-1933143 10/13/1989 11/24/1989 Nitrate CHARBONNEAU WELL #1 CAND
-1933076 10/13/1989 11/24/1989 Nitrate GESELLSHAFT WELL DAND
-1933298 10/24/1986 01/20/1987 Nitrate ELLIGSEN WELL (STAFFORD) AAND
-1933299 10/24/1986 10/24/1986 Nitrate ELLIGSEN WELL (STAFFORD) AA0.15
-1933218 10/24/1986 01/20/1987 Nitrate WIEDEMAN WELL BAND
-1933144 10/24/1986 01/20/1987 Nitrate CHARBONNEAU WELL #1 CAND
-1933077 10/24/1986 01/20/1987 Nitrate GESELLSHAFT WELL DAND
 




For further information on this public water system, click on the area of interest below:
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: 4377