OHA Drinking Water Services
OR41
PWS ID: 01309 ---- HAT ROCK WATER COMPANY
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
TCR ARCHIVE 05/04/1994 05/18/1994 COLIFORM (TCR) Present Present Routine 940504PC1 Alert TCR0 1994-05-18
TCR ARCHIVE 05/09/1994 05/18/1994 COLIFORM (TCR) Present Present Repeat 940509PE1 Alert TCR0 1994-05-18
TCR ARCHIVE 07/07/1994 07/19/1994 COLIFORM (TCR) Present Present Routine 940707PD1 Alert TCR0 1994-07-19
NO3 ARCHIVE 03/29/1995 04/19/1995 A NITRATE 6 5 10 MG/L 950329S*A Alert Chem NO30 1995-04-19
TCR ARCHIVE 09/08/1995 10/16/1995 COLIFORM (TCR) Present Present Routine 950908PE15 Alert TCR0 1995-10-16
TCR ARCHIVE 09/14/1995 10/16/1995 COLIFORM (TCR) Present Present Repeat 950914PG13 Alert TCR0 1995-10-16
TCR ARCHIVE 09/20/1995 10/16/1995 COLIFORM (TCR) Present Present Repeat 950920PB17 Alert TCR0 1995-10-16
NO3 ARCHIVE 09/18/1996 10/07/1996 A NITRATE 5.5 5 10 MG/L 9609181*A Alert Chem NO30 1996-10-07
NO3 ARCHIVE 12/10/1996 01/02/1997 A NITRATE 5.7 5 10 MG/L 961209I*A Alert Chem NO30 1997-01-02
NO3 ARCHIVE 02/03/1997 02/18/1997 A NITRATE 5.9 5 10 MG/L 970203U*A Alert Chem NO30 1997-02-18
NO3 ARCHIVE 06/03/1997 06/18/1997 A NITRATE 8.7 5 10 MG/L 970603H*A Alert Chem NO30 1997-06-18
TCR ARCHIVE 07/07/1997 07/17/1997 COLIFORM (TCR) Present Present Routine 9707070D15 Alert TCR0 1997-07-17
NO3 ARCHIVE 11/05/1997 11/18/1997 A NITRATE 6.3 5 10 MG/L 971105I*A Alert Chem NO30 1997-11-18
TCR ARCHIVE 01/07/1998 01/23/1998 COLIFORM (TCR) Present Present Routine 980107PQ10 Alert TCR0 1998-01-23
NO3 ARCHIVE 06/02/1998 06/18/1998 A NITRATE 8.5 5 10 MG/L 980602G*A Alert Chem NO30 1998-06-18
NO3 ARCHIVE 12/03/1998 01/13/1999 A NITRATE 6.8 5 10 MG/L 981204AD*A Alert Chem NO30 1999-01-13
TCR ARCHIVE 02/08/1999 02/22/1999 COLIFORM (TCR) Present Present Routine 990208PA1 Alert TCR0 1999-02-22
NO3 ARCHIVE 06/15/1999 07/13/1999 A NITRATE 7.8 5 10 MG/L 990615AP*A Alert Chem NO30 1999-07-13
NO3 ARCHIVE 05/08/2000 06/16/2000 A NITRATE 8.5 5 10 MG/L A00508K*A Alert Chem NO30 2000-06-16
NO3 ARCHIVE 03/08/2001 04/09/2001 A NITRATE 7 5 10 MG/L A10308L*A Alert Chem NO30 2001-04-09
IOC ARCHIVE 03/08/2001 04/09/2001 A SODIUM 34 20 MG/L A10308L*A Alert Chem IOC0 2001-04-09
NO3 CHEM69 03/04/2002 08/19/2002 EP-A NITRATE 7.3 5 10 MG/L A20304D-1 Alert Chem NO30 2002-08-19
NO3 CHEM360 03/05/2003 04/04/2003 EP-A NITRATE 7 5 10 MG/L A30305AE-1 Alert Chem NO30 2003-04-04
NO3 CHEM757 03/10/2004 05/27/2004 EP-A NITRATE 6 5 10 MG/L A40310AA-1 Alert Chem NO30 2004-05-27
Notice - Sodium CHEM1097 11/04/2004 01/14/2005 EP-A SODIUM 150 20 MG/L A41104E-1I Notice Sodium 2005-01-14
NO3 CHEM1545 04/07/2005 05/03/2005 EP-A NITRATE 8 5 10 MG/L A50408A-1 Alert Chem NO30 2005-05-03
NO3 CHEM3141 06/01/2006 08/29/2008 EP-A NITRATE 9 5 10 MG/L A60601E1 Alert Chem NO30 2008-08-29
TCR COLI3313 08/01/2006 08/02/2006 DIST-A COLIFORM (TCR) Present Present Routine M0060801PM129 Alert TCR0 2006-08-02
NO3 CHEM2421 03/06/2007 04/04/2007 EP-A NITRATE 7 5 10 MG/L A70306AN1-I Alert Chem NO30 2007-04-04
Notice - Sodium CHEM2421 03/06/2007 04/04/2007 EP-A SODIUM 130 20 MG/L A70306AN1-I Notice Sodium 2007-04-04
NIT CHEM2566 03/06/2007 08/02/2007 EP-A NITRATE-NITRITE 7 10 MG/L A70306AN1-I Alert Chem NIT0 2007-08-02
TCR COLI4758 11/01/2007 11/02/2007 DIST-A COLIFORM (TCR) Present Present Routine M0071101PH117 Alert TCR0 2007-11-02
NO3 CHEM3053 02/04/2008 08/04/2008 EP-A NITRATE 7 5 10 MG/L A80204I1-I Alert Chem NO30 2008-08-04
NO3 CHEM3360 02/04/2009 02/12/2009 EP-A NITRATE 7.25 5 10 MG/L 090204E1Q-I Alert Chem NO30 2009-02-12
TCR COLI6402 07/01/2009 07/06/2009 DIST-A E. COLI Present 0 Routine 090701G Alert TCR0 2009-07-06
TCR COLI6402 07/01/2009 07/06/2009 DIST-A COLIFORM (TCR) Present Present Routine 090701G Alert TCR0 2009-07-06
TCR COLI6402 07/02/2009 07/06/2009 DIST-A E. COLI Present 0 Repeat 090702L1 Alert TCR0 2009-07-06
TCR COLI6402 07/02/2009 07/06/2009 DIST-A E. COLI Present 0 Repeat 09702L2 Alert TCR0 2009-07-06
TCR COLI6402 07/02/2009 07/06/2009 DIST-A COLIFORM (TCR) Present Present Repeat 090702L1 Alert TCR0 2009-07-06
TCR COLI6402 07/02/2009 07/06/2009 DIST-A COLIFORM (TCR) Present Present Repeat 09702L2 Alert TCR0 2009-07-06
Notice - Special COLI6459 07/07/2009 07/14/2009 07/14/2009 0 DIST-A E. COLI Present 0 Special 090707T1 Notice Special 2009-07-14
Notice - Special COLI6459 07/07/2009 07/14/2009 07/14/2009 0 DIST-A E. COLI Present 0 Special 090707T2 Notice Special 2009-07-14
Notice - Special COLI6459 07/07/2009 07/14/2009 07/14/2009 0 DIST-A COLIFORM (TCR) Present Present Special 090707T1 Notice Special 2009-07-14
Notice - Special COLI6459 07/07/2009 07/14/2009 07/14/2009 0 DIST-A COLIFORM (TCR) Present Present Special 090707T2 Notice Special 2009-07-14
NO3 CHEM3953 02/01/2010 02/17/2010 02/17/2010 0 EP-A NITRATE 6.8 5 10 MG/L 481751N-I Alert Chem NO30 2010-02-17
Notice - Source COLI7837 07/01/2010 07/06/2010 SRC-AA COLIFORM (TCR) Present Present Assessment 491108 Notice Source 2010-07-06
NO3 CHEM5529 02/08/2011 09/21/2012 10/11/2012 20 EP-A NITRATE 7.8 5 10 MG/L 103900903-I Alert Chem NO30 2012-09-21
NO3 CHEM5309 03/05/2012 03/16/2012 03/16/2012 0 EP-A NITRATE 9.6 5 10 MG/L 206601003-I Alert Chem NO30 2012-03-16
NO3 CHEM5397 06/11/2012 06/20/2012 06/18/2012 -2 EP-A NITRATE 9.2 5 10 MG/L 216400801-I Alert Chem NO30 2012-06-20
TCR COLI10883 09/04/2012 09/06/2012 09/07/2012 1 DIST-A COLIFORM (TCR) Present Present Routine 535266 Alert TCR0 2012-09-06
NO3 CHEM5513 09/04/2012 09/17/2012 10/11/2012 24 EP-A NITRATE 8 5 10 MG/L 224906202-I Alert Chem NO30 2012-09-17
Notice - Source COLI10901 09/09/2012 09/11/2012 SRC-AA COLIFORM (TCR) Present Present Triggered 535404 Notice Source 2012-09-11
NO3 CHEM5698 02/13/2013 02/21/2013 02/21/2013 0 EP-A NITRATE 10 5 10 MG/L 304501001-I Alert Chem CMCL NO30 2013-02-21
NO3 CHEM5769 05/06/2013 05/10/2013 05/09/2013 -1 EP-A NITRATE 10.4 5 10 MG/L 312801701-I Alert Chem CMCL NO30 2013-05-10
TCR COLI11915 08/02/2013 08/05/2013 08/06/2013 1 DIST-A COLIFORM (TCR) Present Present Routine 130802C1 Alert TCR0 2013-08-05
NO3 CHEM5964 08/02/2013 09/25/2013 09/10/2013 -15 EP-A NITRATE 8.77 5 10 MG/L 130809038003-I Alert Chem NO30 2013-09-25
NO3 CHEM6223 03/06/2014 03/06/2014 03/06/2014 0 EP-A NITRATE 11.7 5 10 MG/L 10999-I Alert Chem CMCL NO30 2014-03-06
NO3 CHEM6252 03/28/2014 03/28/2014 03/31/2014 3 EP-A NITRATE 10.9 5 10 MG/L 1054-I Alert Chem CMCL NO30 2014-03-28
NO3 CHEM6317 06/11/2014 06/11/2014 EP-A NITRATE 10.5 5 10 MG/L 1247-I Alert Chem CMCL NO30 2014-06-11
NO3 CHEM6474 09/09/2014 10/15/2014 09/11/2014 -34 EP-A NITRATE 7.72 5 10 MG/L 1512B-I Alert Chem NO30 2014-10-15
TCR COLI13549 11/05/2014 11/07/2014 11/07/2014 0 DIST-A COLIFORM (TCR) Present Present Routine 1686 Alert TCR0 2014-11-07
TCR COLI13560 11/07/2014 11/10/2014 11/10/2014 0 DIST-A COLIFORM (TCR) Present Present Repeat 1693 Alert TCR0 2014-11-10
TCR COLI13560 11/07/2014 11/10/2014 11/10/2014 0 DIST-A COLIFORM (TCR) Present Present Repeat 1694 Alert TCR0 2014-11-10
TCR COLI13560 11/07/2014 11/10/2014 11/10/2014 0 DIST-A COLIFORM (TCR) Present Present Repeat 1695 Alert TCR0 2014-11-10
TCR COLI13560 11/07/2014 11/10/2014 11/10/2014 0 DIST-A COLIFORM (TCR) Present Present Repeat 1696 Alert TCR0 2014-11-10
TCR COLI13693 12/09/2014 12/11/2014 12/12/2014 1 DIST-A COLIFORM (TCR) Present Present Routine 1746 Alert TCR0 2014-12-11
TCR COLI13741 12/15/2014 12/17/2014 DIST-A COLIFORM (TCR) Present Present Repeat 1768 Alert TCR0 2014-12-17
NO3 CHEM6595 01/09/2015 01/09/2015 EP-A NITRATE 10.2 5 10 MG/L 1792-I Alert Chem CMCL NO30 2015-01-09
NO3 CHEM6676 04/01/2015 04/02/2015 04/02/2015 0 EP-A NITRATE 10.8 5 10 MG/L 1988-I Alert Chem CMCL NO30 2015-04-02
NO3 CHEM6752 07/08/2015 07/09/2015 07/10/2015 1 EP-A NITRATE 10.5 5 10 MG/L 2347B-I Alert Chem CMCL NO30 2015-07-09
NO3 CHEM6862 09/08/2015 09/10/2015 09/10/2015 0 EP-A NITRATE 9.36 5 10 MG/L 2635B-I Alert Chem NO30 2015-09-10
NO3 CHEM7078 10/06/2015 03/17/2016 03/17/2016 0 EP-A NITRATE 9.96 5 10 MG/L 2744B-I Alert Chem NO30 2016-03-17
NO3 CHEM7045 02/02/2016 02/08/2016 02/08/2016 0 EP-A NITRATE 14 5 10 MG/L 2969B-I Alert Chem CMCL NO30 2016-02-08
NO3 CHEM7097 03/31/2016 04/04/2016 04/01/2016 -3 EP-A NITRATE 12.7 5 10 MG/L 3098B-I Alert Chem CMCL NO30 2016-04-04
TCR COLI15572 06/08/2016 06/10/2016 06/10/2016 0 DIST-A COLIFORM (TCR) Present Present Routine 3421 Alert TCR0 2016-06-10
Notice - Source COLI15590 06/13/2016 06/15/2016 SRC-AA COLIFORM (TCR) Present Present Triggered 3448 Notice Source 2016-06-15
NO3 CHEM7197 07/06/2016 07/06/2016 EP-A NITRATE 11.6 5 10 MG/L 35557A-I Alert Chem CMCL NO30 2016-07-06
TCR COLI16467 01/04/2017 01/05/2017 DIST-A COLIFORM (TCR) Present Present Routine 4166 Alert TCR0 2017-01-05
TCR COLI16475 01/05/2017 01/09/2017 01/05/2017 -4 DIST-A COLIFORM (TCR) Present Present Repeat 4176 Alert TCR0 2017-01-09
TCR COLI16475 01/05/2017 01/09/2017 01/05/2017 -4 DIST-A COLIFORM (TCR) Present Present Repeat 4177 Alert TCR0 2017-01-09
TCR COLI16475 01/05/2017 01/09/2017 01/05/2017 -4 DIST-A COLIFORM (TCR) Present Present Repeat 4178 Alert TCR0 2017-01-09
Notice - Source COLI16475 01/05/2017 01/09/2017 01/05/2017 -4 SRC-AA COLIFORM (TCR) Present Present Triggered 4179 Notice Source 2017-01-09
NO3 CHEM7497 02/06/2017 02/08/2017 EP-A NITRATE 12.6 5 10 MG/L 4242-I Alert Chem CMCL NO30 2017-02-08
NO3 CHEM7650 07/27/2017 08/14/2017 EP-A NITRATE 7.14 5 10 MG/L 5101-I Alert Chem NO30 2017-08-14
NO3 CHEM7675 07/27/2017 08/29/2017 EP-A NITRATE 6.4 5 10 MG/L 63007-I Alert Chem NO30 2017-08-29
NO3 CHEM7873 02/08/2018 02/23/2018 02/26/2018 3 EP-A NITRATE 5.78 5 10 MG/L 5757-I Alert Chem NO30 2018-02-23
NO3 CHEM8116 09/24/2018 10/12/2018 10/12/2018 0 EP-A NITRATE 5.53 5 10 MG/L 6769-I Alert Chem NO30 2018-10-12
TCR COLI18906 06/06/2019 06/07/2019 06/07/2019 0 DIST-A COLIFORM (TCR) Present Present Routine 907318 Alert TCR0 2019-06-07
TCR COLI19204 06/10/2019 08/29/2019 08/29/2019 0 DIST-A COLIFORM (TCR) Present Present Repeat BM64946 Alert TCR0 2019-08-29
TCR COLI19408 10/08/2019 10/10/2019 10/11/2019 1 DIST-A COLIFORM (TCR) Present Present Routine 191009701 Alert TCR0 2019-10-10
TCR COLI19434 10/15/2019 10/17/2019 10/17/2019 0 DIST-A COLIFORM (TCR) Present Present Repeat 191018901 Alert TCR0 2019-10-17
TCR COLI19434 10/15/2019 10/17/2019 10/17/2019 0 DIST-A COLIFORM (TCR) Present Present Repeat 191018902 Alert TCR0 2019-10-17
TCR COLI19434 10/15/2019 10/17/2019 10/17/2019 0 DIST-A COLIFORM (TCR) Present Present Repeat 191018903 Alert TCR0 2019-10-17
Notice - Source COLI19434 10/15/2019 10/17/2019 10/17/2019 0 SRC-AA COLIFORM (TCR) Present Present Triggered 191019002 Notice Source 2019-10-17
Notice - Sodium CHEM8863 02/05/2020 02/28/2020 EP-A SODIUM 107 20 MG/L 2009549-I Notice Sodium 2020-02-28
NO3 CHEM9308 04/26/2021 05/04/2021 05/05/2021 1 EP-A NITRATE 5.06 5 10 MG/L 210435301-I Alert Chem NO30 2021-05-04
NO3 CHEM9396 07/08/2021 07/23/2021 07/23/2021 0 EP-A NITRATE 5.37 5 10 MG/L 210711201-I Alert Chem NO30 2021-07-23
NO3 CHEM9725 04/25/2022 05/04/2022 05/04/2022 0 EP-A NITRATE 5.54 5 10 MG/L 220436801-I Alert Chem NO30 2022-05-04
NO3 CHEM9830 07/12/2022 07/25/2022 07/25/2022 0 EP-A NITRATE 5.4 5 10 MG/L 2207226-01-I Alert Chem NO30 2022-07-25
NO3 CHEM9952 10/04/2022 10/21/2022 10/21/2022 0 EP-A NITRATE 6.09 5 10 MG/L 2210047-01-I Alert Chem NO30 2022-10-21
NO3 NO3-34 02/15/2023 03/02/2023 04/17/2023 46 EP-A NITRATE 5.15 5 10 MG/L 2302277-01-I Alert Chem NO30 2023-03-02
NO3 NO3-64 04/06/2023 04/17/2023 04/17/2023 0 EP-A NITRATE 5.6 5 10 MG/L 2304117-01-I Alert Chem NO30 2023-04-17
NO3 NO3-104 07/11/2023 07/19/2023 07/20/2023 1 EP-A NITRATE 7.02 5 10 MG/L T3G1113-01-I Alert Chem NO30 2023-07-19
NO3 NO3-144 10/11/2023 10/18/2023 10/18/2023 0 EP-A NITRATE 6.17 5 10 MG/L T3J1117-01-I Alert Chem NO30 2023-10-18
NO3 NO3-302 07/08/2024 07/22/2024 07/22/2024 0 EP-A NITRATE 5.5 5 10 MG/L T4G0815-01-I Alert Chem NO30 2024-07-22
NO3 NO3-314 08/05/2024 08/15/2024 08/15/2024 0 EP-A NITRATE 6.24 5 10 MG/L T4H0511-01-I Alert Chem NO30 2024-08-15


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