OHA Drinking Water Services

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*
*Non-alert (water quality notice)
Results:  9 alerts found for this water system.Show response time
Water Quality Alerts
Alert ID Sample
Source Name Alert
Contaminant Result Alert
MCL Contact
COLI22556 09/13/2022 09/15/2022 DIST-A Mens restroom COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI22410 08/04/2022 08/08/2022 DIST-A Kitchen COLI COLIFORM, TOTAL (TCR) Present Present Present08/09/2022
CHEM9696 04/01/2022 04/05/2022 EP-A EP for WELL CHEM NITRATE (AS N) 5.662307145 10
CHEM9574 11/01/2021 12/03/2021 EP-A EP for WELL CHEM NITRATE (AS N) 5.967155945 1012/03/2021
COLI16449 12/29/2016 01/03/2017 SRC-AA well SOURCE* COLIFORM, TOTAL (TCR) Present Present Present01/13/2017
COLI9556 08/26/2011 08/29/2011 SRC-AA well SOURCE* COLIFORM, TOTAL (TCR) Present Present Present08/30/2011
COLI9546 08/22/2011 08/23/2011 DIST-A inside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present08/23/2011
CHEM4782 02/22/2011 03/10/2011 EP-A EP for WELL CHEM NITRATE (AS N) 5.095 1003/14/2011
CHEM53 01/28/2002 08/13/2002 EP-A EP for WELL CHEM NITRATE (AS N) 5.85 10
*Non-alert (water quality notice)

Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
02/01/2001AA--WELLNitrate6 10
04/03/1995A--EP for WELLNitrate5.56 10
01/09/1995A--EP for WELLNitrate7.2 10
12/13/1994A--EP for WELLNitrate7.66 10

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 :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 1816