OHA Drinking Water Services
PWS ID: 00368 ---- HELIX, 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:  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:  49 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)
COLI20753 01/15/2021 01/19/2021 DIST-A Columbia & Harrison COLI COLIFORM, TOTAL (TCR) Present Present Present01/15/2021-4
COLI20753 01/15/2021 01/19/2021 DIST-A Vesper & Solar COLI COLIFORM, TOTAL (TCR) Present Present Present01/15/2021-4
COLI20752 01/14/2021 01/15/2021 DIST-A Site #2 COLI COLIFORM, E. COLI Present Present Present01/15/20210
COLI20752 01/14/2021 01/15/2021 DIST-A Site #2 COLI COLIFORM, TOTAL (TCR) Present Present Present01/15/20210
COLI20752 01/14/2021 01/15/2021 DIST-A Columbia & Harrison COLI COLIFORM, TOTAL (TCR) Present Present Present01/15/20210
COLI20742 01/11/2021 01/14/2021 DIST-A Vesper & Solar COLI COLIFORM, TOTAL (TCR) Present Present Present01/14/20210
COLI20403 10/08/2020 10/12/2020 DIST-A Aroura & Harrison Upstream COLI COLIFORM, TOTAL (TCR) Present Present Present10/07/2020-5
COLI20403 10/08/2020 10/12/2020 DIST-A Vesper & Solar Upstream COLI COLIFORM, TOTAL (TCR) Present Present Present10/07/2020-5
COLI20403 10/08/2020 10/12/2020 DIST-A Harrison & Columbia COLI COLIFORM, TOTAL (TCR) Present Present Present10/07/2020-5
COLI20375 10/06/2020 10/08/2020 DIST-A Columbia & Harrison COLI COLIFORM, TOTAL (TCR) Present Present Present10/07/2020-1
CHEM8750 10/23/2019 12/19/2019 EP-A EP FOR WELLS SODIUM* SODIUM 24.420
COLI17254 10/02/2017 10/04/2017 DIST-A Solar & Vesper Test Site #4 COLI COLIFORM, TOTAL (TCR) Present Present Present10/05/20171
COLI17006 08/07/2017 08/09/2017 DIST-A test site #5 COLI COLIFORM, TOTAL (TCR) Present Present Present08/09/20170
COLI17006 08/07/2017 08/09/2017 DIST-A test site #7 COLI COLIFORM, TOTAL (TCR) Present Present Present08/09/20170
COLI17006 08/07/2017 08/09/2017 DIST-A test site #4 COLI COLIFORM, TOTAL (TCR) Present Present Present08/09/20170
COLI16974 08/02/2017 08/03/2017 DIST-A test site #1 COLI COLIFORM, TOTAL (TCR) Present Present Present08/03/20170
COLI16173 10/26/2016 10/27/2016 DIST-A harrison & aurora COLI COLIFORM, E. COLI Present Present Present
COLI16173 10/26/2016 10/27/2016 DIST-A harrison & aurora COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI16146 10/19/2016 10/21/2016 DIST-A os city hall COLI COLIFORM, TOTAL (TCR) Present Present Present10/20/2016-1
COLI15694 07/06/2016 07/08/2016 DIST-A os storage tank COLI COLIFORM, TOTAL (TCR) Present Present Present07/07/2016-1
COLI15694 07/06/2016 07/08/2016 DIST-A harrison columbia test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/07/2016-1
COLI15694 07/06/2016 07/08/2016 DIST-A columbia main test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/07/2016-1
COLI15694 07/06/2016 07/08/2016 SRC-AA well #4 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present07/07/2016-1
COLI15687 07/05/2016 07/06/2016 DIST-A harrison columbia test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/06/20160
COLI14609 09/01/2015 09/03/2015 DIST-A harrison & aurora test spot COLI COLIFORM, TOTAL (TCR) Present Present Present09/03/20150
COLI14472 08/03/2015 08/05/2015 DIST-A harrison & aurora test spot COLI COLIFORM, TOTAL (TCR) Present Present Present08/04/2015-1
COLI14472 08/03/2015 08/05/2015 DIST-A at well #4 test spot COLI COLIFORM, TOTAL (TCR) Present Present Present08/04/2015-1
COLI14361 07/09/2015 07/13/2015 DIST-A columbia & harrison test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/10/2015-3
COLI14361 07/09/2015 07/13/2015 DIST-A 401 harrison church s faucet COLI COLIFORM, TOTAL (TCR) Present Present Present07/10/2015-3
COLI14361 07/09/2015 07/13/2015 DIST-A 119 columbia os faucet COLI COLIFORM, TOTAL (TCR) Present Present Present07/10/2015-3
COLI14361 07/09/2015 07/13/2015 DIST-A harrison & aurora test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/10/2015-3
COLI14336 07/08/2015 07/10/2015 DIST-A columbia & harrison test spot COLI COLIFORM, E. COLI Present Present Present
COLI14336 07/08/2015 07/10/2015 DIST-A columbia & harrison test spot COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI14336 07/08/2015 07/10/2015 DIST-A harrison & aurora test spot COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI14317 07/06/2015 07/08/2015 DIST-A harrison & aurora test spot COLI COLIFORM, TOTAL (TCR) Present Present Present07/08/20150
COLI11469 02/04/2013 02/05/2013 DIST-A columbia & harrison test spot COLI COLIFORM, E. COLI Present Present Present02/05/2012-366
COLI11469 02/04/2013 02/05/2013 DIST-A columbia & harrison test spot COLI COLIFORM, TOTAL (TCR) Present Present Present02/05/2012-366
COLI7686 06/01/2010 06/03/2010 DIST-A solar and vesper COLI COLIFORM, TOTAL (TCR) Present Present Present06/04/20101
CHEM3893 07/13/2009 01/13/2010 EP-A EP FOR WELLS SODIUM* SODIUM 21.820
COLI7028 11/02/2009 11/04/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present11/06/20092
COLI7028 11/02/2009 11/04/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present11/06/20092
COLI7028 11/02/2009 11/04/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present11/06/20092
COLI6928 10/08/2009 10/13/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present10/13/20090
COLI6928 10/08/2009 10/13/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present10/13/20090
COLI6910 10/06/2009 10/08/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present10/08/20090
COLI6866 09/30/2009 10/02/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI4489 09/05/2007 09/07/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2216 07/18/2005 07/26/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2012 05/17/2005 05/23/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
*Non-alert (water quality notice)


Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
10/31/2001Coliform
10/25/2001Coliform
09/19/2001Coliform
09/05/2001Coliform
06/19/2000Coliform
12/15/1997Coliform
12/12/1997Coliform
12/09/1997Coliform
10/21/1996Coliform
10/18/1996Coliform
10/16/1996Coliform
07/11/1996Coliform
11/17/1998A--EP FOR COMBINED WELLSNitrate8.8 10
07/05/1995AB--WELL #1 (SHALLOW)Nitrate13 10
09/06/1994A--EP FOR COMBINED WELLSNitrate5.3 10
12/18/1997AA--WELL #4 (NEW/DEEP)Sodium23
04/13/1994AA--WELL #4 (NEW/DEEP)Sodium24


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: 3728
Information by county:
Inventory :: Surface Water Systems :: Water System Surveys :: Outstanding Performers :: Plan Reviews :: System Scores :: Exceedances
Alerts :: Violations :: Compliance & Enforcement :: Significant Deficiencies :: Cross Connection ASRs :: Treatment Plant Inspections :: Fluoride
Water Advisories :: Contact Reports :: Cyanotoxins :: Post-wildfire VOCs
Inventory List for all Oregon Drinking Water Systems in Excel or printable screen format
Lab Help: Tools for Laboratories :: Staff/Partner Login
Introduction :: Data Search Options :: WS Name Look Up :: WS ID Look Up :: DWS Home