OHA Drinking Water Services
PWS ID: 00229 ---- RIDGEWOOD DIST IMPROV CO

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, SODIUM = Sodium*
*Non-alert (water quality notice)
Results:  24 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
COLI20987 06/02/2021 06/04/2021 DIST-A Reservoir tap os fct COLI COLIFORM, TOTAL (TCR) Present Present Present06/04/2021
COLI20342 10/01/2020 10/02/2020 DIST-A Reservoir Tap, outside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present10/02/2020
COLI19385 10/02/2019 10/04/2019 DIST-A Reservoir Tap, outside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present10/03/2019
COLI19385 10/02/2019 10/04/2019 DIST-A 7910 Ridgewood, outside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present10/03/2019
COLI19385 10/02/2019 10/04/2019 DIST-A 1265 Heather, outside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present10/03/2019
COLI19361 10/01/2019 10/03/2019 DIST-A Reservoir Tap, outside faucet COLI COLIFORM, TOTAL (TCR) Present Present Present10/03/2019
CHEM8006 06/06/2018 07/19/2018 EP-A EP for WELL SODIUM* SODIUM 28.920
COLI16198 11/01/2016 11/03/2016 DIST-A 1270 nw heather dr os faucet COLI COLIFORM, TOTAL (TCR) Present Present Present11/02/2016
CHEM6767 06/01/2015 07/20/2015 EP-A EP for WELL SODIUM* SODIUM 30.220
CHEM5401 06/04/2012 06/25/2012 EP-A EP for WELL SODIUM* SODIUM 28.420
CHEM3562 06/01/2009 06/30/2009 EP-A EP for WELL SODIUM* SODIUM 2920 06/30/2009
COLI3886 01/02/2007 01/03/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3886 01/02/2007 01/03/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3793 12/01/2006 12/04/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3793 12/01/2006 12/04/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3718 11/06/2006 11/07/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3718 11/06/2006 11/07/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM2203 06/01/2006 10/13/2006 EP-A EP for WELL SODIUM* SODIUM 3220 10/13/2006
COLI3607 10/03/2006 10/04/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI3607 10/02/2006 10/04/2006 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2672 12/01/2005 12/05/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2502 10/04/2005 10/07/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2487 10/02/2005 10/05/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM461 06/10/2003 08/04/2003 EP-A EP for WELL SODIUM* SODIUM 3020
*Non-alert (water quality notice)


Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
11/01/1999Coliform
10/05/1999Coliform
10/03/1999Coliform
05/04/1999Coliform
05/02/1999Coliform
11/08/1998Coliform
10/07/1998Coliform
10/04/1998Coliform
09/20/1998Coliform
11/11/1997Coliform
03/11/1997Coliform
08/14/1995Coliform
10/17/1994Coliform
10/14/1994Coliform
05/12/1994Coliform
06/05/2000AA--WELLSodium37
06/24/1997AA--WELLSodium28.8
05/04/1993AA--WELL - WELLSodium31.4
02/04/1991A--WELLSodium33.4


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: 4120
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Water Advisories :: Contact Reports :: Cyanotoxins :: Post-wildfire VOCs
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