OHA Drinking Water Services
OR41
PWS ID: 94811 ---- KNIFE RIVER - NW HARRISBURG
Water Quality Alerts

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Alert Date Range: From to
Alert Type
 Alert ID Sample Date Alert Date Contact
Report		 Response
Time (Days)		 Location Analyte
 Result
 Current
Alert Level		 Current
MCL		 Units Sample Type Lab Sample ID SelectAtype FilterAlertDate
IOC ARCHIVE 05/23/1994 09/18/1995 AA SODIUM 27 20 MG/L 942821 Alert Chem IOC0 1995-09-18
IOC ARCHIVE 10/08/2001 11/13/2001 AA SODIUM 24 20 MG/L 213518 Alert Chem IOC0 2001-11-13
Notice - Sodium CHEM1043 09/21/2004 12/10/2004 EP-A SODIUM 26.7 20 MG/L 40924-8 Notice Sodium 2004-12-10
Notice - Sodium CHEM2563 06/27/2007 07/26/2007 EP-A SODIUM 24 20 MG/L 64241 Notice Sodium 2007-07-26
TCR COLI5932 12/02/2008 12/04/2008 12/05/2008 1 DIST-A COLIFORM (TCR) Present Present Routine 286179 Alert TCR0 2008-12-04
TCR COLI5954 12/05/2008 12/08/2008 12/10/2008 2 DIST-A COLIFORM (TCR) Present Present Repeat 286272 Alert TCR0 2008-12-08
TCR COLI5954 12/05/2008 12/08/2008 12/10/2008 2 DIST-A COLIFORM (TCR) Present Present Repeat 286273 Alert TCR0 2008-12-08
TCR COLI5954 12/05/2008 12/08/2008 12/10/2008 2 DIST-A COLIFORM (TCR) Present Present Repeat 286274 Alert TCR0 2008-12-08
TCR COLI6035 01/06/2009 01/08/2009 01/12/2009 4 DIST-A COLIFORM (TCR) Present Present Routine 290056 Alert TCR0 2009-01-08
TCR COLI6035 01/06/2009 01/08/2009 01/12/2009 4 DIST-A COLIFORM (TCR) Present Present Routine 290057 Alert TCR0 2009-01-08
TCR COLI6035 01/06/2009 01/08/2009 01/12/2009 4 DIST-A COLIFORM (TCR) Present Present Routine 290058 Alert TCR0 2009-01-08
TCR COLI6035 01/06/2009 01/08/2009 01/12/2009 4 DIST-A COLIFORM (TCR) Present Present Routine 290059 Alert TCR0 2009-01-08
TCR COLI6525 07/24/2009 07/30/2009 07/30/2009 0 DIST-A COLIFORM (TCR) Present Present Routine 20090724020 Alert TCR0 2009-07-30
TCR COLI6548 08/03/2009 08/05/2009 08/06/2009 1 DIST-A COLIFORM (TCR) Present Present Repeat 20090803067 Alert TCR0 2009-08-05
TCR COLI6548 08/03/2009 08/05/2009 08/06/2009 1 DIST-A COLIFORM (TCR) Present Present Repeat 20090803068 Alert TCR0 2009-08-05
TCR COLI6548 08/03/2009 08/05/2009 08/06/2009 1 DIST-A COLIFORM (TCR) Present Present Repeat 20090803069 Alert TCR0 2009-08-05
NO3 CHEM5576 10/09/2012 10/24/2012 10/25/2012 1 EP-A NITRATE 7.24 5 10 MG/L 20121009039-I Alert Chem NO30 2012-10-24
NO3 CHEM5678 01/15/2013 01/25/2013 01/25/2013 0 EP-A NITRATE 7.64 5 10 MG/L 20130115033-I Alert Chem NO30 2013-01-25
NO3 CHEM5829 06/17/2013 06/28/2013 07/01/2013 3 EP-A NITRATE 6.83 5 10 MG/L 20130617009-I Alert Chem NO30 2013-06-28
TCR COLI12758 04/11/2014 04/15/2014 04/14/2014 -1 DIST-A COLIFORM (TCR) Present Present Routine 20140411024 Alert TCR0 2014-04-15
TCR COLI15358 03/22/2016 03/24/2016 03/24/2016 0 DIST-A COLIFORM (TCR) Present Present Routine 20160322018 Alert TCR0 2016-03-24
Notice - Sodium CHEM7363 09/07/2016 10/21/2016 EP-A SODIUM 27.8 20 MG/L 20160907024-I Notice Sodium 2016-10-21
LCR CHEM9394 06/16/2021 07/22/2021 07/23/2021 1 DIST-A LEAD SUMMARY 0.0259 0.015 MG/L Alert Chem LCR0 2021-07-22
NO3 NO3-176 12/15/2023 01/02/2024 01/04/2024 2 EP-A NITRATE 5.58 5 10 MG/L 20231215-027-I Alert Chem NO30 2024-01-02
NO3 NO3-207 01/31/2024 02/07/2024 02/08/2024 1 EP-A NITRATE 6.49 5 10 MG/L 20240131-029-I Alert Chem NO30 2024-02-07
NO3 NO3-257 04/12/2024 04/18/2024 04/18/2024 0 EP-B NITRATE 7.16 5 10 MG/L 20240412-007-I Alert Chem NO30 2024-04-18


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