OHA Drinking Water Services
OR41
PWS ID: 00744 ---- KEIZER, CITY OF
System Type: C    Population: 38,585


Current Open Coliform Sample Schedule
(subject to change based upon future test results)
DIST-A:  40 Routine sample(s)  per Month to be taken beginning 05/01/2005 -

(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:  8 Triggered sample(s) to be taken and reported  09/24/2024 - 10/05/2024
       1 at SRC-EA - WELL #5 - CHERRY AVENUE
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-OA - WELL #15 - RIDGE DRIVE
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   09/25/2024 - 10/05/2024  at DIST-A  
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   06/04/2024 - 06/14/2024  at DIST-A  
-----
GWR:  7 Triggered sample(s) to be taken and reported  06/03/2024 - 06/14/2024
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-UA - WELL #6 - CARLHAVEN EAST
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
GWR:  6 Triggered sample(s) to be taken and reported  04/22/2024 - 05/03/2024
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-UA - WELL #6 - CARLHAVEN EAST
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   04/23/2024 - 05/03/2024  at DIST-A  
-----
GWR:  8 Triggered sample(s) to be taken and reported  09/05/2023 - 09/16/2023
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-UA - WELL #6 - CARLHAVEN EAST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   09/06/2023 - 09/16/2023  at DIST-A  
-----
GWR:  8 Triggered sample(s) to be taken and reported  07/10/2023 - 07/21/2023
       1 at SRC-EA - WELL #5 - CHERRY AVENUE
       1 at SRC-JA - WELL #7 - WIESSNER
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-VA - WELL #12 - 17TH AVENUE
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   07/11/2023 - 07/21/2023  at DIST-A  
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   10/11/2022 - 10/21/2022  at DIST-A  
-----
GWR:  8 Triggered sample(s) to be taken and reported  10/10/2022 - 10/21/2022
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   09/13/2022 - 09/23/2022  at DIST-A  
-----
GWR:  8 Triggered sample(s) to be taken and reported  09/12/2022 - 09/23/2022
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
GWR:  9 Triggered sample(s) to be taken and reported  09/06/2022 - 09/17/2022
       1 at SRC-EA - WELL #5 - CHERRY AVENUE
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   09/07/2022 - 09/17/2022  at DIST-A  
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   08/23/2022 - 09/02/2022  at DIST-A  
-----
GWR:  10 Triggered sample(s) to be taken and reported  08/22/2022 - 09/02/2022
       1 at SRC-EA - WELL #5 - CHERRY AVENUE
       1 at SRC-HA - WELL #9 - MCNARY
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19 - CITY HALL
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-UA - WELL #6 - CARLHAVEN EAST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
       1 at SRC-WA - WELL #18 - LACEY COURT
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   04/12/2022 - 04/22/2022  at DIST-A  
-----
GWR:  5 Triggered sample(s) to be taken and reported  04/11/2022 - 04/22/2022
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-TA - WELL #1 - CARLHAVEN WEST
       1 at SRC-UA - WELL #6 - CARLHAVEN EAST
       1 at SRC-VA - WELL #12 - 17TH AVENUE
-----
GWR:  1 Assessment sample(s) Year  01/01/2012 - 01/20/2022  at SRC-PA  WELL #16 - REITZ
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GWR:  15 Triggered sample(s) to be taken and reported  07/19/2021 - 07/30/2021
       1 at SRC-DA - WELL #10 - CHEMAWA
       1 at SRC-EA - WELL #5 - CHERRY AVENUE
       1 at SRC-HA - WELL #9 - MCNARY
       1 at SRC-JA - WELL #7 - WIESSNER
       1 at SRC-KA - WELL #2 - WILLAMETTE MANOR
       1 at SRC-NA - WELL #14 - MEADOWS
       1 at SRC-OA - WELL #15 - RIDGE DRIVE
       1 at SRC-PA - WELL #16 - REITZ
       1 at SRC-QA - WELL #4 - KEIZER STATION
       1 at SRC-RA - WELL #8 - DELTA
       1 at SRC-SA - WELL #19
-----
TCR:  3 Repeat sample(s) within 24 hours of a TC+ Routine Sample to be reported   07/20/2021 - 07/30/2021  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
    Chantal Wikstrom
    (971) 666-8512




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