OHA Drinking Water Services
PWS ID: 00474 ---- LAWRENCE SUBDIVISION WTR ASSN

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*, LCR = Lead and copper 90th percentile, LCRE = Lead and copper corrosion control, SODIUM = Sodium*
*Non-alert (water quality notice)
Results:  30 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
CHEM8354 05/06/2019 06/17/2019 EP-A EP FOR WELLS #1 & #2 SODIUM* SODIUM 40.220
COLI12761 04/15/2014 04/17/2014 SRC-AB well #2 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI12614 02/11/2014 02/13/2014 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI12576 01/13/2014 01/15/2014 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI12497 12/17/2013 12/19/2013 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI12417 11/11/2013 11/13/2013 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
LCRE15670 07/01/2013 08/12/2013 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION5>0 08/26/2013
COLI11273 12/07/2012 12/10/2012 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
LCRE13696 02/01/2012 03/06/2012 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0
LCRE12639 05/01/2011 06/02/2011 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0 06/01/2011
COLI9087 04/15/2011 04/18/2011 SRC-AA well #1 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
LCRE12455 03/01/2011 04/06/2011 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION2>0
LCRE11979 11/01/2010 12/22/2010 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0 05/18/2011
CHEM4579 07/30/2010 11/23/2010 EP-A EP FOR WELLS #1 & #2 SODIUM* SODIUM 60.820
LCRE8782 06/01/2008 07/03/2008 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0
LCRE8672 05/01/2008 06/11/2008 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0 06/19/2008
COLI4713 10/19/2007 10/22/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present10/22/2007
LCRE8049 07/01/2007 08/06/2007 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0
LCRE1220 05/01/2005 06/03/2005 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION4>0
CHEM1229 08/26/1997 03/21/2005 LCR COPPER 90TH % VALUE 1.6641.35 07/07/2008
CHEM1229 09/11/2000 03/21/2005 LCR COPPER 90TH % VALUE 1.751.35 07/07/2008
CHEM1229 04/09/2001 03/21/2005 LCR COPPER 90TH % VALUE 1.741.35 07/07/2008
CHEM1229 10/15/2001 03/21/2005 LCR COPPER 90TH % VALUE 2.081.35 07/07/2008
LCRE5950 06/01/2004 07/07/2004 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION7>0
LCRE4153 08/01/2003 09/09/2003 EP-A EP FOR WELLS #1 & #2 LCRE LCR EXCURSION1>0
COLI232 05/13/2003 05/20/2003 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI244 05/12/2003 05/20/2003 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI161 04/07/2003 04/15/2003 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI120 03/12/2003 03/25/2003 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI111 03/11/2003 03/17/2003 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
02/18/1992AA--WELL #1Nitrate6.1 10
02/18/1992AB--WELL #2Nitrate5.18 10
05/25/2001A--EP FOR WELLS #1 & #2Sodium34.5
11/17/1998A--EP FOR WELLS #1 & #2Sodium45.3
07/13/1993AA--WELL #1Sodium34.5
07/13/1993AB--WELL #2Sodium31.3
02/18/1992AA--WELL #1Sodium28.1
02/18/1992AB--WELL #2Sodium30.1



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: 3350