OHA Drinking Water Services
PWS ID: 00403 ---- IRRIGON, CITY OF

Alerts indicate water quality tests with analytical results greater than the detection limit or one-half of the maximum allowable contaminant level which may require some follow-up actions by Drinking Water Services. See the Contacts link for reports on follow-up actions. Alerts are not water quality violations. Violations for this water system can be found here.

Alert Type Abbreviations:  CHEM = Chemical, COLI = Coliform, SOURCE = Coliform source sample*, SODIUM = Sodium*
*Non-alert (water quality notice)
Response Time is the number of days from the alert date to the contact report date.
Results:  77 alerts found for this water system.Hide response time
Water Quality Alerts
Alert ID Sample
Date
Alert
Date
Source
ID
Source Name Alert
Type
Contaminant Result Alert
Level
MCL Contact
Report
Response
Time (Days)
COLI19245 09/10/2019 09/12/2019 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI19224 09/04/2019 09/06/2019 DIST-A 185 Kristen Dr fauct COLI COLIFORM, TOTAL (TCR) Present Present Present09/10/20194
COLI16056 10/03/2016 10/05/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15906 09/01/2016 09/02/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15807 08/02/2016 08/04/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15455 05/03/2016 05/04/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15376 04/01/2016 04/04/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15299 03/02/2016 03/04/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15249 02/02/2016 02/04/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI15242 02/01/2016 02/02/2016 SRC-BA well #3 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
02/04/2009 10/02/2009 EP-A EP FOR WELLS 1 & 2 CHEM NITRATE (AS N) 5.175 10
CHEM3358 01/07/2009 02/12/2009 EP-A EP FOR WELLS 1 & 2 CHEM NITRATE (AS N) 8.895 10
CHEM3148 09/08/2008 09/25/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 14.85 10
CHEM3000 06/02/2008 06/27/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 13.55 10
CHEM2908 04/01/2008 04/15/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 7.95 10
CHEM3052 03/03/2008 08/04/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 65 10
CHEM2865 02/04/2008 02/29/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 75 10
CHEM2837 01/07/2008 02/14/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 6.65 10
CHEM2735 12/03/2007 12/21/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 85 10
COLI4753 11/01/2007 11/02/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM2704 11/01/2007 11/08/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 7.95 10
CHEM2742 10/01/2007 01/02/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 11.415 15
CHEM2658 10/01/2007 10/17/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM2606 09/05/2007 09/21/2007 SRC-AA WELL #1 - SHALLOW WELL CHEM NITRATE (AS N) 155 10
CHEM2606 09/05/2007 09/21/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 135 10
CHEM2598 08/02/2007 08/31/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 155 10
CHEM2742 07/10/2007 01/02/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 12.215 15
CHEM2593 07/02/2007 08/30/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 135 10
CHEM2537 06/07/2007 06/25/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 125 10
CHEM2488 04/16/2007 05/21/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 85 10
CHEM2742 04/09/2007 01/02/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 13.915 15
CHEM2472 04/09/2007 05/04/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 9.15 10
CHEM2423 02/06/2007 04/06/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM2309 01/03/2007 01/29/2007 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 75 10
CHEM3124 11/13/2006 08/29/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 715 15
CHEM2288 11/06/2006 12/05/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 75 10
CHEM3443 10/26/2006 04/07/2009 EP-B EP FOR WELLS 3 & 4 CHEM DI(2-ETHYLHEXYL) - PHTHALATE 0.0020.0006 0.006
CHEM2244 10/02/2006 10/24/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 125 10
CHEM2296 09/18/2006 12/27/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM2151 08/02/2006 09/01/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 155 10
CHEM2151 07/06/2006 09/01/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 155 10
CHEM2037 06/02/2006 06/14/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 135 10
CHEM2037 06/02/2006 06/14/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 165 10
CHEM2037 06/02/2006 06/14/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 125 10
CHEM2037 06/02/2006 06/14/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 135 10
COLI3002 05/05/2006 05/08/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM2014 04/07/2006 06/13/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1988 04/07/2006 05/11/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1969 03/02/2006 04/27/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 75 10
CHEM1893 12/13/2005 01/18/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 65 10
CHEM1872 11/17/2005 01/11/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 65 10
CHEM1792 11/10/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 75 10
CHEM1792 11/02/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1792 10/27/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM1792 10/19/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1792 10/14/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM1792 10/04/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1792 09/07/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 125 10
CHEM1792 09/07/2005 12/19/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 185 10
COLI2312 08/03/2005 08/15/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM3124 08/03/2005 08/29/2008 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 8.1115 15
CHEM2037 08/03/2005 06/14/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM GROSS ALPHA, EXCLUDING RA & U 8.1115 15
CHEM1901 08/03/2005 01/23/2006 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1740 08/03/2005 09/29/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 115 10
CHEM1901 08/03/2005 01/23/2006 EP-A EP FOR WELL #1 & WELL #2 SODIUM* SODIUM 4720
CHEM1710 07/06/2005 08/16/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 135 10
CHEM1618 04/21/2005 05/27/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM1222 01/31/2005 03/21/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 85 10
CHEM1076 12/02/2004 01/14/2005 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 95 10
CHEM1049 10/14/2004 12/20/2004 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM870 08/11/2004 09/24/2004 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM838 07/07/2004 08/23/2004 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM817 06/14/2004 07/27/2004 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 105 10
CHEM751 04/15/2004 05/27/2004 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 85 10
CHEM412 04/28/2003 05/22/2003 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 5.85 10
CHEM157 08/07/2002 10/10/2002 EP-A EP FOR WELL #1 & WELL #2 CHEM NITRATE (AS N) 5.65 10
CHEM157 08/07/2002 10/10/2002 EP-A EP FOR WELL #1 & WELL #2 SODIUM* SODIUM 4420
*Non-alert (water quality notice)


Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
08/17/1993A--EP FOR WELLS #1 & #2Arsenic0.011 0.05
10/04/1996A--EP FOR WELLS #1 & #2Bromobenzene0.003
07/09/1999Coliform
06/03/1997Coliform
03/11/1996Coliform
10/24/1994Coliform
08/17/1993A--EP FOR WELLS #1 & #2Nickel0.073 0.1
08/17/1993A--EP FOR WELLS #1 & #2Nitrate5.7 10
10/20/1999A--EP FOR WELLS #1 & #2Sodium37
10/04/1996A--EP FOR WELLS #1 & #2Sodium39.9
08/17/1993A--EP FOR WELLS #1 & #2Sodium36.4
01/30/1991AA--WELL #1 - SHALLOW WELLSodium34.4
01/30/1991AB--WELL #2 - DEEP WELLSodium265



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: 3740