OHA Drinking Water Services
OR41
PWS ID: 94713 ---- COLUMBIA RIDGE LANDFILL/RECYCL
System Type: NTNC    Population: 80


Current Open Coliform Sample Schedule
(subject to change based upon future test results)
DIST-A:  1 Routine sample(s)  per Month to be taken beginning 05/01/2021 -

(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 Triggered sample(s) to be taken and reported  06/20/2023 - 07/01/2023
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   06/21/2023 - 07/01/2023  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  03/15/2023 - 03/26/2023
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   03/16/2023 - 03/26/2023  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  11/15/2022 - 11/26/2022
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   11/16/2022 - 11/26/2022  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  10/12/2022 - 10/23/2022
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   10/13/2022 - 10/23/2022  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  12/16/2021 - 12/27/2021
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   12/17/2021 - 12/27/2021  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  08/10/2021 - 08/21/2021
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   08/11/2021 - 08/21/2021  at DIST-A  
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TCR:  1 Routine sample(s) per Month to be taken   03/01/2021 - 03/31/2021  at DIST-A  
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TCR:  3 Temporary Routine sample(s) per Month to be taken   01/01/2021 - 01/31/2021  at DIST-A  
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GWR:  1 Triggered sample(s) to be taken and reported  12/22/2020 - 01/02/2021
       1 at SRC-AA - WELL #1
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TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   12/23/2020 - 01/02/2021  at DIST-A  
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Show 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:
    DRINKING WATER SERVICES
    Bill Goss/Amy Word
    (541) 276-8006




More information for this water system: SDWIS ID 2851
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