Current Open Coliform Sample Schedule
(subject to change based upon future test results)
GWR: SRC-AD: 1 Assessment sample(s) per Month to be taken beginning 06/01/2024 -
GWR: SRC-AC: 1 Assessment sample(s) per Year to be taken beginning 01/01/2013 -
GWR: SRC-BA: 1 Assessment sample(s) per Year to be taken beginning 01/01/2013 -
GWR: SRC-BB: 1 Assessment sample(s) per Year to be taken beginning 01/01/2013 -
GWR: SRC-CA: 1 Assessment sample(s) per Year to be taken beginning 01/01/2012 -
GWR: SRC-AB: 1 Assessment sample(s) per Year to be taken beginning 01/01/2012 -
DIST-A: 20 Routine sample(s) per Month to be taken beginning 04/01/2003 -
(A begin date of 01/01/1991 indicates the year the Total Coliform Rule was established)
Public water systems that use chlorine or chloramines must measure the
residual disinfectant level at the same points in the distribution system and at the same time when total coliforms are sampled.
Repeat, Temporary Routine, and Prior Coliform Sample Schedules
(Schedules in bold reflect current schedules)
TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 11/20/2024 - 11/30/2024 at DIST-A
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GWR: 3 Triggered sample(s) to be taken and reported 11/19/2024 - 11/30/2024
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-AD - WELL #2R
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GWR: 1 Assessment sample(s) Year 01/01/2023 - 05/31/2024 at SRC-AD WELL #2R
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GWR: 3 Triggered sample(s) to be taken and reported 12/05/2023 - 12/16/2023
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 12/06/2023 - 12/16/2023 at DIST-A
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GWR: 6 Triggered sample(s) to be taken and reported 10/10/2023 - 10/21/2023
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
1 at SRC-AD - WELL #2R
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 10/11/2023 - 10/21/2023 at DIST-A
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GWR: 3 Triggered sample(s) to be taken and reported 10/04/2022 - 10/15/2022
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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GWR: 3 Triggered sample(s) to be taken and reported 10/04/2022 - 10/15/2022
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 10/05/2022 - 10/15/2022 at DIST-A
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GWR: 1 Assessment sample(s) Year 01/01/2012 - 09/01/2022 at SRC-AA WELL #2
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GWR: 6 Triggered sample(s) to be taken and reported 07/12/2022 - 07/23/2022
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 07/13/2022 - 07/23/2022 at DIST-A
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GWR: 5 Triggered sample(s) to be taken and reported 10/15/2019 - 10/26/2019
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 10/16/2019 - 10/26/2019 at DIST-A
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GWR: 6 Triggered sample(s) to be taken and reported 08/28/2018 - 09/08/2018
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 08/29/2018 - 09/08/2018 at DIST-A
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GWR: 6 Triggered sample(s) to be taken and reported 03/07/2017 - 03/18/2017
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 03/08/2017 - 03/18/2017 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 11/10/2016 - 11/20/2016 at DIST-A
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GWR: 6 Triggered sample(s) to be taken and reported 08/18/2015 - 09/02/2015
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 08/19/2015 - 09/02/2015 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 07/22/2015 - 08/05/2015 at DIST-A
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GWR: 6 Triggered sample(s) to be taken and reported 07/21/2015 - 08/05/2015
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
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GWR: 7 Triggered sample(s) to be taken and reported 11/04/2014 - 11/19/2014
1 at SRC-AA - WELL #2
1 at SRC-AB - WELL #3
1 at SRC-AC - WELL #5
1 at SRC-BA - WELL #4
1 at SRC-BB - WELL #7
1 at SRC-CA - WELL #6
1 at SRC-DA - WELL #8
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 11/05/2014 - 11/19/2014 at DIST-A
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GWR: 1 Assessment sample(s) Year 01/01/2012 - 11/12/2014 at SRC-DA WELL #8
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GWR: 1 Assessment sample(s) per Month to be taken 05/01/2011 - 05/31/2012 at SRC-AC WELL #5
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GWR: 1 Assessment sample(s) per Month to be taken 05/01/2011 - 05/31/2012 at SRC-BA WELL #4
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GWR: 1 Assessment sample(s) per Month to be taken 05/01/2011 - 05/31/2012 at SRC-BB WELL #7
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 05/16/2012 - 05/30/2012 at DIST-A
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-AA WELL #2
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-AB WELL #3
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-AC WELL #5
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-BA WELL #4
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-BB WELL #7
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-CA WELL #6
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GWR: 1 Triggered sample(s) to be taken and reported 05/15/2012 - 05/30/2012 at SRC-DA WELL #8
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 02/09/2011 - 02/23/2011 at DIST-A
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-AA WELL #2
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-AB WELL #3
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-AC WELL #5
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-BA WELL #4
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-BB WELL #7
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-CA WELL #6
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GWR: 1 Triggered sample(s) to be taken and reported 02/08/2011 - 02/23/2011 at SRC-DA WELL #8
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GWR: 1 Assessment sample(s) per Month to be taken 01/01/2010 - 12/31/2010 at SRC-AA WELL #2
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GWR: 1 Assessment sample(s) per Month to be taken 01/01/2010 - 12/31/2010 at SRC-AB WELL #3
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 02/13/2008 - 02/27/2008 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 10/03/2007 - 10/17/2007 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 07/20/2007 - 08/03/2007 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 03/08/2006 - 03/22/2006 at DIST-A
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TCR: 3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported 07/06/2005 - 07/20/2005 at DIST-A
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TCR: 20 Routine sample(s) per Month to be taken 01/01/1991 - 03/31/2003 at DIST-A
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Hide schedules prior to 2022
Instructions and Notes
- If no prior sample schedules appear, then no prior schedules exist within the database.
- Schedules for Oregon very small systems might not appear. If the system is active, samples must be collected for the presence of coliform bacteria once per month or once per quarter depending on water type, seasonal operating cycle, or previous sampling results.
- If a sample tests positive for total coliform or E. coli, a minimum of 3 repeat samples must be collected. At water systems where quarterly monitoring takes place, 3 routine samples must be collected the month following one in which a routine sample tested positive for the presence of total coliform or E. coli.
Any time a sample tests positive for the presence of coliform bacteria, the system's operator should contact their regulator. For this water system, that is:
DRINKING WATER SERVICES
Keith Male
(503) 939-1322
