OHA Drinking Water Services
PWS ID: 00067 ---- AURORA, 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, LCR = Lead and copper 90th percentile, SODIUM = Sodium*
*Non-alert (water quality notice)
Results:  17 alerts found for this water system.Show response time
Water Quality Alerts
Alert ID Sample
Date
Alert
Date
Source
ID
Source Name Alert
Type
Contaminant Result Alert
Level
MCL Contact
Report
CHEM9497 09/28/2021 10/12/2021 SRC-AA PARK WELL #4 CHEM ARSENIC 0.01120.0105 0.0110/13/2021
CHEM9487 09/28/2021 10/06/2021 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) CHEM ARSENIC 0.01250.0105 0.0110/06/2021
CHEM9128 09/16/2020 10/27/2020 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) SODIUM* SODIUM 36.620
CHEM7784 11/16/2017 11/27/2017 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) CHEM ARSENIC 0.01120.0105 0.0111/28/2017
CHEM5203 12/07/2011 12/29/2011 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) SODIUM* SODIUM 30.920
COLI9611 09/06/2011 09/12/2011 DIST-A 14655 Kasel Ct COLI COLIFORM, TOTAL (TCR) Present Present Present09/13/2011
CHEM3788 09/15/2009 10/19/2009 LCR LEAD 90TH % VALUE 0.0440.0155 10/19/2009
CHEM3617 06/10/2009 08/05/2009 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) CHEM ARSENIC 0.01380.0105 0.01
CHEM3617 06/10/2009 08/05/2009 EP-A EP FOR PARK WELLS (WELL #4, #3 & #5) CHEM ARSENIC 0.01080.0105 0.01
COLI5838 11/04/2008 11/06/2008 DIST-A Distribution System COLI COLIFORM, E. COLI Present Present Present11/06/2008
COLI5838 11/04/2008 11/06/2008 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present11/06/2008
CHEM3054 06/25/2008 08/04/2008 EP-A EP FOR PARK WELLS (WELL #4 & #3) CHEM ARSENIC 0.010.0105 0.0107/15/2008
CHEM3019 03/27/2008 07/15/2008 EP-A EP FOR PARK WELLS (WELL #4 & #3) CHEM ARSENIC 0.0150.0105 0.01
CHEM2981 03/27/2008 06/12/2008 EP-A EP FOR PARK WELLS (WELL #4 & #3) CHEM ARSENIC 0.0140.0105 0.0106/12/2008
CHEM2194 09/07/2006 10/06/2006 EP-A EP FOR PARK WELLS (WELL #4 & #3) CHEM ARSENIC 0.0140.0105 0.0102/14/2007
CHEM2177 09/07/2006 09/27/2006 EP-A EP FOR PARK WELLS (WELL #4 & #3) CHEM ARSENIC 0.0140.0105 0.01
COLI744 10/07/2003 10/30/2003 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
10/07/1997Coliform
02/06/1996Coliform
11/10/1994Coliform
11/01/1994Coliform
10/20/1999A--PARK WELLS (WELL #4 & #3)Sodium28.6
08/27/1996AA--PARK WELL #4Sodium42.1
03/24/1993AA--PARK WELL #4Sodium44.4
03/24/1993BA--RIVER WELL (WELL #1) - WELL #1Sodium47.9
04/28/1992A--PARK WELLS (WELL #4 & #3)Sodium39.2
04/28/1992B--RIVER WELL (WELL #1)Sodium40.1



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: 3233