PWS ID: 00452 ---- LAFAYETTE, 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, SOURCE = Coliform source sample*, LCR = Lead and copper 90th percentile, LCRE = Lead and copper corrosion control, SODIUM = Sodium*
*Non-alert (water quality notice)
Results:  70 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
CHEM8932 04/15/2020 04/27/2020 EP-A EP FOR RESERVOIR (TEST BUILDING) CHEM XYLENES 0.00120.0005 10
CHEM8813 12/30/2019 01/15/2020 EP-A EP FOR RESERVOIR (TEST BUILDING) CHEM XYLENES 0.00070.0005 1002/05/2020
CHEM8751 11/12/2019 12/19/2019 EP-A EP FOR RESERVOIR (TEST BUILDING) CHEM XYLENES 0.00090.0005 1012/20/2019
CHEM8743 11/12/2019 12/16/2019 EP-A EP FOR RESERVOIR (TEST BUILDING) SODIUM* SODIUM 40.520
CHEM8743 11/12/2019 12/16/2019 EP-C EP FOR CITY PARK WELL SODIUM* SODIUM 21.420
LCRE25054 03/01/2019 04/10/2019 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION2>0 04/11/2019
CHEM8251 02/07/2019 02/27/2019 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08870.08 0.0802/25/2019
CHEM8249 02/06/2019 02/25/2019 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08280.08 0.0802/25/2019
LCRE24616 12/01/2018 01/04/2019 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0 02/14/2019
LCRE24447 11/01/2018 12/05/2018 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0 12/05/2018
CHEM8055 08/08/2018 09/06/2018 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.09560.08 0.0808/24/2018
CHEM8055 08/08/2018 09/06/2018 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.0890.08 0.0808/24/2018
LCRE23506 04/01/2018 05/03/2018 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0 05/03/2018
LCRE23292 02/01/2018 03/09/2018 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION2>0 03/28/2018
CHEM7839 12/28/2017 01/17/2018 EP-C EP FOR CITY PARK WELL CHEM ETHYLBENZENE 0.00610.0005 0.703/28/2018
CHEM7839 12/28/2017 01/17/2018 EP-C EP FOR CITY PARK WELL CHEM TOLUENE 0.00050.0005 103/28/2018
CHEM7839 12/28/2017 01/17/2018 EP-C EP FOR CITY PARK WELL CHEM XYLENES 0.04360.0005 1003/28/2018
LCRE22225 06/01/2017 07/06/2017 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0 07/10/2017
CHEM7550 03/29/2017 04/19/2017 EP-C EP FOR CITY PARK WELL CHEM ETHYLBENZENE 0.0020.0005 0.704/20/2017
CHEM7550 03/29/2017 04/19/2017 EP-C EP FOR CITY PARK WELL CHEM TOLUENE 0.0020.0005 104/20/2017
CHEM7550 03/29/2017 04/19/2017 EP-C EP FOR CITY PARK WELL CHEM XYLENES 0.01620.0005 1004/20/2017
CHEM7529 11/22/2016 03/17/2017 EP-C EP FOR CITY PARK WELL CHEM DICHLOROMETHANE 0.0010.0005 0.00503/17/2017
CHEM7529 11/22/2016 03/17/2017 EP-C EP FOR CITY PARK WELL CHEM ETHYLBENZENE 0.00230.0005 0.703/17/2017
CHEM7529 11/22/2016 03/17/2017 EP-C EP FOR CITY PARK WELL CHEM TOLUENE 0.00670.0005 103/17/2017
CHEM7529 11/22/2016 03/17/2017 EP-C EP FOR CITY PARK WELL CHEM XYLENES 0.01420.0005 1003/17/2017
CHEM7453 11/23/2016 12/21/2016 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08150.08 0.0812/23/2016
CHEM7453 11/28/2016 12/21/2016 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08910.08 0.0812/23/2016
LCRE18979 12/01/2015 01/05/2016 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION4>0 01/22/2016
COLI15053 12/09/2015 12/11/2015 DIST-A Blue Bird Spring COLI COLIFORM, TOTAL (TCR) Present Present Present12/11/2015
COLI14985 11/23/2015 11/30/2015 SRC-AE well #8 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present11/30/2015
COLI14985 11/23/2015 11/30/2015 SRC-AF blue bird spring SOURCE* COLIFORM, TOTAL (TCR) Present Present Present11/30/2015
COLI14974 11/18/2015 11/20/2015 DIST-A 204 3rd stand pipe COLI COLIFORM, TOTAL (TCR) Present Present Present11/20/2015
CHEM6850 08/06/2015 09/02/2015 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.09630.08 0.0809/25/2015
CHEM6850 08/06/2015 09/02/2015 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.8160.08 0.0809/25/2015
COLI14594 08/28/2015 08/31/2015 DIST-A 133 adams st COLI COLIFORM, TOTAL (TCR) Present Present Present09/03/2015
CHEM6733 05/07/2015 06/10/2015 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08890.08 0.0807/30/2015
CHEM6733 05/07/2015 06/10/2015 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08710.08 0.0807/30/2015
LCRE17664 01/01/2015 02/05/2015 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION3>0
CHEM6425 08/13/2014 09/05/2014 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.09260.08 0.08
CHEM6309 05/21/2014 06/04/2014 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.09790.08 0.08
LCRE16621 04/01/2014 05/02/2014 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0
LCRE16495 03/01/2014 04/01/2014 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION5>0
CHEM6227 02/26/2014 03/14/2014 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.10160.08 0.08
CHEM6108 11/25/2013 12/13/2013 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08980.08 0.08
CHEM6093 11/25/2013 12/11/2013 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08910.08 0.08
CHEM5889 07/25/2013 08/16/2013 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.09050.08 0.08
LCRE14819 12/01/2012 01/08/2013 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0
LCRE12288 02/01/2011 03/02/2011 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0
CHEM4625 09/29/2010 12/22/2010 LCR LEAD 90TH % VALUE 0.0210.0155
CHEM4384 09/15/2010 09/28/2010 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.10480.08 0.0809/28/2010
LCRE11278 05/01/2010 06/22/2010 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0 07/16/2010
LCRE10835 01/01/2010 02/02/2010 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION3>0 02/01/2010
COLI6550 08/05/2009 08/06/2009 DIST-A Distribution System COLI COLIFORM, E. COLI Present Present Present
COLI6550 08/05/2009 08/06/2009 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
LCRE9586 01/01/2009 04/08/2009 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION2>0
LCRE8454 03/01/2008 04/17/2008 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION2>0
LCRE7926 12/01/2007 01/04/2008 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION2>0
COLI4500 09/07/2007 09/10/2007 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
LCRE2235 02/01/2007 03/15/2007 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0
LCRE7616 01/01/2007 03/01/2007 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION1>0
LCRE2374 11/01/2006 02/02/2007 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION3>0
CHEM1989 04/26/2006 05/11/2006 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08580.08 0.08
LCRE7014 12/01/2005 02/24/2006 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION6>0
LCRE1840 01/01/2006 02/24/2006 EP-A EP FOR RESERVOIR (TEST BUILDING) LCRE LCR EXCURSION20>0
CHEM1794 08/31/2005 12/19/2005 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.1560.08 0.08
COLI2206 07/12/2005 07/19/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
COLI2203 07/08/2005 07/18/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM1225 03/21/1995 03/21/2005 LCR COPPER 90TH % VALUE 1.951.35
CHEM1225 03/21/1995 03/21/2005 LCR LEAD 90TH % VALUE 0.0270.0155
COLI1191 06/02/2004 06/08/2004 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
10/25/2001Coliform
10/23/2001Coliform
08/19/1996Coliform
08/15/1996Coliform
12/12/1996B--EP WELL #7Dichloromethane (Methylene Chloride)0.0017 0.005
10/18/2000B--EP WELL #7Gross Alpha, Excl. Radon & U6.56 15
08/16/1991B--EP WELL #7Lead0.028 0.015
08/18/1995B--EP WELL #7Manganese0.43
12/01/1998BA--WELL #7Sodium21.6
08/18/1995B--EP WELL #7Sodium28
08/16/1991B--EP WELL #7Sodium28.82



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
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: 4296