OHA Drinking Water Services
OR41
PWS ID: 94477 ---- CORVALLIS-ALBANY KOA
System Type: NC    Population: 75


Current Open Coliform Sample Schedule
(subject to change based upon future test results)
GWR:  SRC-AA:  1 Assessment sample(s)  per Year to be taken beginning 01/01/2018 -
DIST-A:  1 Routine sample(s)  per Quarter to be taken beginning 04/01/2016 -

(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)

GWR:  1 Assessment sample(s) per Month to be taken   09/01/2015 - 02/28/2017  at SRC-AA  WELL
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TCR:  5 Temporary Routine sample(s) per Month to be taken   01/01/2016 - 01/31/2016  at DIST-A  
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TCR:  1 Routine sample(s) per Quarter to be taken   10/01/2012 - 12/31/2015  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  12/01/2015 - 12/16/2015
       1 at SRC-AA - WELL
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   12/02/2015 - 12/16/2015  at DIST-A  
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GWR:  1 Assessment sample(s) Year  01/01/2014 - 12/31/2014  at SRC-AA  WELL
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TCR:  5 Temporary Routine sample(s) per Month to be taken   07/01/2012 - 07/31/2012  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   06/01/2012 - 06/30/2012  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   06/12/2012 - 06/26/2012  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  06/11/2012 - 06/26/2012  at SRC-AA  WELL
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TCR:  1 Routine sample(s) per Quarter to be taken   01/01/2012 - 05/31/2012  at DIST-A  
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TCR:  4 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
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TCR:  5 Temporary Routine sample(s) per Month to be taken   12/01/2011 - 12/31/2011  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  11/17/2011 - 12/02/2011  at SRC-AA  WELL
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   11/18/2011 - 12/02/2011  at DIST-A  
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TCR:  1 Routine sample(s) per Quarter to be taken   04/01/2011 - 11/30/2011  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   01/01/2011 - 01/31/2011  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   12/01/2010 - 12/31/2010  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  12/15/2010 - 12/30/2010  at SRC-AA  WELL
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   12/16/2010 - 12/30/2010  at DIST-A  
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TCR:  1 Routine sample(s) per Quarter to be taken   01/01/2010 - 11/30/2010  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   11/12/2010 - 11/26/2010  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  11/11/2010 - 11/26/2010  at SRC-AA  WELL
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TCR:  5 Temporary Routine sample(s) per Month to be taken   12/01/2009 - 12/31/2009  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   11/18/2009 - 12/02/2009  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   11/01/2009 - 11/30/2009  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   10/01/2009 - 10/31/2009  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   10/13/2009 - 10/27/2009  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   10/02/2009 - 10/16/2009  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   09/18/2009 - 10/02/2009  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   09/01/2009 - 09/30/2009  at DIST-A  
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TCR:  1 Routine sample(s) per Quarter to be taken   07/01/2005 - 08/31/2009  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   08/11/2009 - 08/25/2009  at DIST-A  
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TCR:  5 Temporary Routine sample(s) per Month to be taken   05/01/2005 - 05/31/2005  at DIST-A  
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TCR:  1 Routine sample(s) per Quarter to be taken   01/01/1991 - 04/30/2005  at DIST-A  
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TCR:  4 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   04/13/2005 - 04/27/2005  at DIST-A  
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Hide schedules prior to 2021


Instructions and Notes
  1. If no prior sample schedules appear, then no prior schedules exist within the database.
  2. 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.
  3. 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:
    LINN CO ENV HEALTH
    Alyson Reynolds/Rebecca Duerr/Nate Tisdell/Shane Sanderson/Stephen Kirkley
    (541) 967-3821 ext 2098/2728/2371/2372
    LinnEH@linncountyhealth.org




More information for this water system: SDWIS ID 1785
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