OHA Drinking Water Services
OR41
PWS ID: 94980 ---- OASIS ON THE SNAKE
Water Quality Alerts

Table is loading - please wait...
Use the "Download" button to export the data to an Excel file.

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 09/15/1997 09/22/1997 COLIFORM (TCR) Present Present Routine 31631 Alert TCR0 1997-09-22
TCR ARCHIVE 09/27/1997 10/06/1997 COLIFORM (TCR) Present Present Repeat 32511 Alert TCR0 1997-10-06
TCR ARCHIVE 09/29/1997 10/06/1997 COLIFORM (TCR) Present Present Repeat 2512 Alert TCR0 1997-10-06
TCR ARCHIVE 09/29/1997 10/06/1997 COLIFORM (TCR) Present Present Repeat 32513 Alert TCR0 1997-10-06
TCR ARCHIVE 10/09/1997 10/15/1997 COLIFORM (TCR) Present Present Repeat 33086 Alert TCR0 1997-10-15
TCR ARCHIVE 10/09/1997 10/15/1997 COLIFORM (TCR) Present Present Repeat 33087 Alert TCR0 1997-10-15
TCR ARCHIVE 10/09/1997 10/15/1997 COLIFORM (TCR) Present Present Repeat 33088 Alert TCR0 1997-10-15
TCR ARCHIVE 10/09/1997 10/15/1997 COLIFORM (TCR) Present Present Repeat 33089 Alert TCR0 1997-10-15
TCR ARCHIVE 07/17/2001 07/23/2001 COLIFORM (TCR) Present Present Routine 307232991 Alert TCR0 2001-07-23
NO3 CHEM52 05/01/2002 08/07/2002 EP-A NITRATE 8.44 5 10 MG/L 257341 Alert Chem NO30 2002-08-07
TCR ARCHIVE 11/06/2002 11/12/2002 COLIFORM (TCR) Present Present Routine 311328981 Alert TCR0 2002-11-12
NO3 CHEM252 12/02/2002 12/31/2002 EP-A NITRATE 6.77 5 10 MG/L 299661 Alert Chem NO30 2002-12-31
TCR ARCHIVE 12/16/2002 12/23/2002 COLIFORM (TCR) Present Present Repeat 312336471 Alert TCR0 2002-12-23
TCR COLI291 06/11/2003 06/16/2003 DIST-A E. COLI Present 0 Routine 306370261 Alert TCR0 2003-06-16
TCR COLI291 06/11/2003 06/16/2003 DIST-A COLIFORM (TCR) Present Present Routine 306370261 Alert TCR0 2003-06-16
TCR COLI2472 09/28/2005 10/03/2005 DIST-A COLIFORM (TCR) Present Present Routine 309555061 Alert TCR0 2005-10-03
NO3 CHEM1859 10/05/2005 12/19/2005 EP-A NITRATE 7.57 5 10 MG/L 556531 Alert Chem NO30 2005-12-19
TCR COLI4574 09/26/2007 09/27/2007 10/02/2007 5 DIST-A COLIFORM (TCR) Present Present Routine 309715481 Alert TCR0 2007-09-27
TCR COLI4684 10/10/2007 10/12/2007 10/16/2007 4 DIST-A COLIFORM (TCR) Present Present Repeat 310719301 Alert TCR0 2007-10-12
NO3 CHEM3310 11/05/2008 01/13/2009 01/15/2009 2 EP-A NITRATE 5.59 5 10 MG/L 877111-I Alert Chem NO30 2009-01-13
TCR COLI7046 11/04/2009 11/06/2009 11/09/2009 3 DIST-A COLIFORM (TCR) Present Present Routine 311882881 Alert TCR0 2009-11-06
NO3 CHEM3874 11/04/2009 12/23/2009 12/29/2009 6 EP-A NITRATE 9.29 5 10 MG/L 970871-I Alert Chem NO30 2009-12-23
NO3 CHEM4655 12/15/2010 01/05/2011 01/07/2011 2 EP-A NITRATE 9.53 5 10 MG/L 1080921-I Alert Chem NO30 2011-01-05
NO3 CHEM5136 10/26/2011 11/09/2011 EP-A NITRATE 9.65 5 10 MG/L 1161261-I Alert Chem NO30 2011-11-09
NO3 CHEM5577 10/24/2012 10/25/2012 10/26/2012 1 EP-A NITRATE 11.2 5 10 MG/L 1254451-I Alert Chem CMCL NO30 2012-10-25
NO3 CHEM5765 04/17/2013 05/03/2013 EP-A NITRATE 9.12 5 10 MG/L 1297271-I Alert Chem NO30 2013-05-03
NO3 CHEM5863 07/10/2013 07/23/2013 EP-A NITRATE 8.46 5 10 MG/L 1318751-I Alert Chem NO30 2013-07-23
NO3 CHEM6002 10/02/2013 10/10/2013 EP-A NITRATE 7.69 5 10 MG/L 1343521-I Alert Chem NO30 2013-10-10
TCR COLI13012 07/09/2014 07/14/2014 07/11/2014 -3 SRC-AA COLIFORM (TCR) Present Present Assessment 3011256741 Alert TCR0 2014-07-14
NO3 CHEM6377 07/09/2014 07/25/2014 07/25/2014 0 EP-A NITRATE 6.43 5 10 MG/L 1415671-I Alert Chem NO30 2014-07-25
TCR COLI13055 07/16/2014 07/21/2014 07/22/2014 1 SRC-AA COLIFORM (TCR) Present Present Assessment 3011258341 Alert TCR0 2014-07-21
TCR COLI13055 07/16/2014 07/21/2014 07/22/2014 1 SRC-AA COLIFORM (TCR) Present Present Assessment 3011258361 Alert TCR0 2014-07-21
TCR COLI13055 07/16/2014 07/21/2014 07/22/2014 1 SRC-AA COLIFORM (TCR) Present Present Assessment 3011258371 Alert TCR0 2014-07-21
TCR COLI13131 07/30/2014 08/11/2014 DIST-A COLIFORM (TCR) Present Present Repeat 3011261121 Alert TCR0 2014-08-11
Notice - Source COLI13131 07/30/2014 08/11/2014 SRC-AA COLIFORM (TCR) Present Present Triggered 3011261111 Notice Source 2014-08-11
NO3 CHEM6760 06/17/2015 07/15/2015 EP-A NITRATE 5.19 5 10 MG/L 1504561-I Alert Chem NO30 2015-07-15
NO3 CHEM6814 07/15/2015 07/29/2015 EP-A NITRATE 6.16 5 10 MG/L 1512081-I Alert Chem NO30 2015-07-29
NO3 CHEM6936 10/21/2015 11/02/2015 EP-A NITRATE 7.15 5 10 MG/L 1539971-I Alert Chem NO30 2015-11-02
NO3 CHEM7116 04/13/2016 04/22/2016 04/25/2016 3 EP-A NITRATE 6.55 5 10 MG/L 1582661-I Alert Chem NO30 2016-04-22
NO3 CHEM7378 10/19/2016 11/01/2016 EP-A NITRATE 6.49 5 10 MG/L 1637411-I Alert Chem NO30 2016-11-01
NO3 CHEM7660 08/02/2017 08/14/2017 EP-A NITRATE 6.47 5 10 MG/L 1716111-I Alert Chem NO30 2017-08-14
NO3 CHEM7916 04/04/2018 04/17/2018 04/19/2018 2 EP-A NITRATE 6.08 5 10 MG/L 1782051-I Alert Chem NO30 2018-04-17
TCR COLI18000 07/18/2018 07/20/2018 07/20/2018 0 DIST-A COLIFORM (TCR) Present Present Routine 3011655171 Alert TCR0 2018-07-20
NO3 CHEM8039 07/18/2018 08/16/2018 08/20/2018 4 EP-A NITRATE 5.98 5 10 MG/L 1809281-I Alert Chem NO30 2018-08-16
TCR COLI18029 07/25/2018 07/27/2018 DIST-A COLIFORM (TCR) Present Present Repeat 3011657231 Alert TCR0 2018-07-27
TCR COLI18033 07/25/2018 07/30/2018 DIST-A COLIFORM (TCR) Present Present Repeat 3011657241 Alert TCR0 2018-07-30
NO3 CHEM8123 10/10/2018 10/19/2018 10/19/2018 0 EP-A NITRATE 5.57 5 10 MG/L 1830411-I Alert Chem NO30 2018-10-19
TCR COLI18413 11/07/2018 11/13/2018 11/14/2018 1 DIST-A COLIFORM (TCR) Present Present Routine 3011689381 Alert TCR0 2018-11-13
TCR COLI18562 12/19/2018 12/21/2018 12/24/2018 3 DIST-A COLIFORM (TCR) Present Present Routine 3011699761 Alert TCR0 2018-12-21
NO3 CHEM8411 07/03/2019 07/19/2019 07/19/2019 0 EP-A NITRATE 6.56 5 10 MG/L 1905161-I Alert Chem NO30 2019-07-19
TCR COLI19895 06/03/2020 06/04/2020 DIST-A COLIFORM (TCR) Present Present Routine 3011843391 Alert TCR0 2020-06-04
TCR COLI20007 07/01/2020 07/06/2020 DIST-A COLIFORM (TCR) Present Present Repeat 3011851161 Alert TCR0 2020-07-06
TCR COLI20007 07/01/2020 07/06/2020 DIST-A COLIFORM (TCR) Present Present Repeat 3011851171 Alert TCR0 2020-07-06
TCR COLI20007 07/01/2020 07/06/2020 DIST-A COLIFORM (TCR) Present Present Repeat 3011851181 Alert TCR0 2020-07-06
Notice - Source COLI20007 07/01/2020 07/06/2020 SRC-AA COLIFORM (TCR) Present Present Triggered 3011851191 Notice Source 2020-07-06
NO3 CHEM9124 10/07/2020 10/26/2020 EP-A NITRATE 6.97 5 10 MG/L 2033241-I Alert Chem NO30 2020-10-26
NO3 CHEM9330 05/12/2021 05/20/2021 EP-A NITRATE 7.85 5 10 MG/L 2091481-I Alert Chem NO30 2021-05-20
TCR COLI21015 06/10/2021 06/14/2021 DIST-A COLIFORM (TCR) Present Present Routine 3011948781 Alert TCR0 2021-06-14
TCR COLI21068 06/24/2021 06/28/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3011953021 Alert TCR0 2021-06-28
Notice - Source COLI21068 06/24/2021 06/28/2021 SRC-AA COLIFORM (TCR) Present Present Triggered 3011953051 Notice Source 2021-06-28
NO3 CHEM9399 07/07/2021 07/23/2021 07/23/2021 0 EP-A NITRATE 8.17 5 10 MG/L 2107241-I Alert Chem NO30 2021-07-23
TCR COLI21285 08/11/2021 08/13/2021 08/16/2021 3 DIST-A COLIFORM (TCR) Present Present Routine 3011969021 Alert TCR0 2021-08-13
TCR COLI21327 08/25/2021 08/27/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3011973061 Alert TCR0 2021-08-27
TCR COLI21327 08/25/2021 08/27/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3011973101 Alert TCR0 2021-08-27
Notice - Source COLI21327 08/25/2021 08/27/2021 SRC-AA COLIFORM (TCR) Present Present Triggered 3011973071 Notice Source 2021-08-27
TCR COLI21788 12/15/2021 12/17/2021 12/21/2021 4 DIST-A COLIFORM (TCR) Present Present Routine 3012005571 Alert TCR0 2021-12-17
TCR COLI21818 12/22/2021 12/27/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3012007141 Alert TCR0 2021-12-27
TCR COLI21818 12/22/2021 12/27/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3012007151 Alert TCR0 2021-12-27
TCR COLI21818 12/22/2021 12/27/2021 DIST-A COLIFORM (TCR) Present Present Repeat 3012007161 Alert TCR0 2021-12-27
Notice - Source COLI21818 12/22/2021 12/27/2021 SRC-AA COLIFORM (TCR) Present Present Triggered 3012007121 Notice Source 2021-12-27
TCR COLI21895 01/19/2022 01/21/2022 01/25/2022 4 DIST-A COLIFORM (TCR) Present Present Routine 3012013071 Alert TCR0 2022-01-21
Notice - Source COLI21895 01/19/2022 01/21/2022 01/25/2022 4 SRC-AA COLIFORM (TCR) Present Present Triggered 3012013051 Notice Source 2022-01-21
TCR COLI21917 01/26/2022 01/28/2022 01/31/2022 3 DIST-A COLIFORM (TCR) Present Present Repeat 3012014771 Alert TCR0 2022-01-28
TCR COLI21917 01/26/2022 01/28/2022 01/31/2022 3 DIST-A COLIFORM (TCR) Present Present Repeat 3012014781 Alert TCR0 2022-01-28
TCR COLI21917 01/26/2022 01/28/2022 01/31/2022 3 DIST-A COLIFORM (TCR) Present Present Repeat 3012014801 Alert TCR0 2022-01-28
Notice - Source COLI21917 01/26/2022 01/28/2022 01/31/2022 3 SRC-AA COLIFORM (TCR) Present Present Triggered 3012014791 Notice Source 2022-01-28
TCR COLI21955 02/16/2022 02/18/2022 02/18/2022 0 DIST-A COLIFORM (TCR) Present Present Routine 3012020541 Alert TCR0 2022-02-18
NO3 CHEM9671 02/16/2022 03/04/2022 03/04/2022 0 EP-A NITRATE 8.42 5 10 MG/L 2167251-I Alert Chem NO30 2022-03-04
TCR COLI21978 03/02/2022 03/04/2022 03/07/2022 3 DIST-A COLIFORM (TCR) Present Present Routine 3012023661 Alert TCR0 2022-03-04
NO3 CHEM9722 04/13/2022 05/02/2022 EP-A NITRATE 6.12 5 10 MG/L 2184581-I Alert Chem NO30 2022-05-02
NO3 NO3-173 12/06/2023 01/02/2024 EP-A NITRATE 6.86 5 10 MG/L 2369901-I Alert Chem NO30 2024-01-02



More information for this water system: SDWIS ID 4251
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  Corrosion Control (LCR)  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA
Something missing? The new Chemical Results page replaces many pages, including arsenic and nitrate.

Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices  ::  Service Lines
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride

Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules

Need help? Email Drinking Water Services for assistance.Staff/Partner Login