OHA Drinking Water Services
OR41
PWS ID: 00893 ---- TILLAMOOK WATER DEPT, CITY OF

See also: Coliform Schedules  ::  LT2 Schedules

Chemical Sampling Schedule Status
Facility
ID		 Analyte or Group   Sampling
Interval		 Monitoring Period Days
Until
End		 Samples
Required		 Samples
Received		 Last
Sample
Date
Start End
CH-A  COMMON HEADER FOR WTP-A TOC & ALKALINITY  Quarterly 04/01/2026 - 06/30/2026 68 1 incomplete03/02/2026
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   20 08/26/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 252 2 incomplete08/04/2025
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR KILLAM & FAWCETT CREEKS ARSENIC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS IOC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS NITRATE  Yearly 01/01/2026 - 12/31/2026 252 1 incomplete08/12/2025
EP-A  EP FOR KILLAM & FAWCETT CREEKS NITRITE notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS PFAS notesQuarterly 04/01/2026 - 06/30/2026 68 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - GROSS ALPHA  9 Years01/01/2020 - 12/31/2028 983 1 done 12/04/2023
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,078 1 incomplete09/29/2020
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 983 1 done 12/04/2023
EP-A  EP FOR KILLAM & FAWCETT CREEKS SOC notes3 Years 01/01/2026 - 12/31/2028 983 2 incomplete11/12/2025
EP-A  EP FOR KILLAM & FAWCETT CREEKS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 252 1 incomplete08/12/2025
EP-C  EP FOR WELL #2 ARSENIC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 IOC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 NITRATE  Yearly 01/01/2026 - 12/31/2026 252 1 incomplete08/26/2025
EP-C  EP FOR WELL #2 NITRITE notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 68 1 incomplete
  Initial monitoring - 2 samples only
EP-C  EP FOR WELL #2 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,078 1 incomplete08/30/2022
EP-C  EP FOR WELL #2 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,078 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,174 1 incomplete08/30/2022
EP-C  EP FOR WELL #2 SOC notes3 Years 01/01/2026 - 12/31/2028 983 2 incomplete12/02/2025
EP-C  EP FOR WELL #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 983 1 incomplete08/26/2025
EP-D  EP FOR WELL #3 ARSENIC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 IOC notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 NITRATE  Yearly 01/01/2026 - 12/31/2026 252 1 incomplete09/09/2025
EP-D  EP FOR WELL #3 NITRITE notes9 Years 01/01/2020 - 12/31/2028 983 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 PFAS notes6 Months 01/01/2026 - 06/30/2026 68 1 incomplete
  Initial monitoring - 2 samples only
EP-D  EP FOR WELL #3 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,078 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 RAD - RADIUM 226/228 6 Years 01/01/2023 - 12/31/2028 983 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,174 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 SOC notes3 Years 01/01/2026 - 12/31/2028 983 2 incomplete12/02/2025
EP-D  EP FOR WELL #3 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 983 1 incomplete09/09/2025
WTP-A  TP FOR KILLAM & FAWCETT CREEKSTOTAL ORGANIC CARBON Quarterly04/01/2026 - 06/30/2026 68 1 incomplete 03/02/2026

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Monthly01/01/200412/31/20051Raw and filtered TOC and alkalinity
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200212/31/20171Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20052Schedule Reflects 1 RT Sample Per QT Per WTP/Aquifer
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200612/31/20142Sample between June 1 and Sept. 30.
EP-A  EP FOR KILLAM & FAWCETT CREEKSARSENIC  Yearly01/01/200212/31/20101
EP-A  EP FOR KILLAM & FAWCETT CREEKSRAD - RADIUM 226/228  6 Years01/01/201712/31/20221
EP-A  EP FOR KILLAM & FAWCETT CREEKSRAD - RADIUM 226/228  9 Years01/01/201112/31/20161Schedule Reflects Monitoring Reduction Granted
EP-C  EP FOR WELL #2ARSENIC  3 Years01/01/200212/31/20101
EP-C  EP FOR WELL #2RAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-C  EP FOR WELL #2RAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-C  EP FOR WELL #2RAD - RADIUM 226/228  6 Years01/01/200812/31/20221
EP-D  EP FOR WELL #3ARSENIC  3 Years01/01/200212/31/20101
EP-D  EP FOR WELL #3IOC  3 Years01/01/200212/31/20101
EP-D  EP FOR WELL #3NITRITE  3 Years01/01/200212/31/20101
EP-D  EP FOR WELL #3RAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-D  EP FOR WELL #3RAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-D  EP FOR WELL #3RAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-D  EP FOR WELL #3RAD - RADIUM 226/228  9 Years01/01/201412/31/20221

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