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 01/01/2026 - 03/31/2026 27 1 incomplete11/12/2025
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 302 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 1,033 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS IOC notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS NITRATE  Yearly 01/01/2026 - 12/31/2026 302 1 incomplete08/12/2025
EP-A  EP FOR KILLAM & FAWCETT CREEKS NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-A  EP FOR KILLAM & FAWCETT CREEKS PFAS notesQuarterly 01/01/2026 - 03/31/2026 27 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - GROSS ALPHA  9 Years01/01/2020 - 12/31/2028 1,033 1 done 12/04/2023
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,128 1 incomplete09/29/2020
EP-A  EP FOR KILLAM & FAWCETT CREEKS RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 1,033 1 done 12/04/2023
EP-A  EP FOR KILLAM & FAWCETT CREEKS SOC notes3 Years 01/01/2026 - 12/31/2028 1,033 2 incomplete11/12/2025
EP-A  EP FOR KILLAM & FAWCETT CREEKS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 302 1 incomplete08/12/2025
EP-C  EP FOR WELL #2 ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 IOC notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 NITRATE  Yearly 01/01/2026 - 12/31/2026 302 1 incomplete08/26/2025
EP-C  EP FOR WELL #2 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 118 1 incomplete12/01/2021
  Initial monitoring - 2 samples only
EP-C  EP FOR WELL #2 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,128 1 incomplete08/30/2022
EP-C  EP FOR WELL #2 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,128 1 incomplete06/05/2019
EP-C  EP FOR WELL #2 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,224 1 incomplete08/30/2022
EP-C  EP FOR WELL #2 SOC notes3 Years 01/01/2026 - 12/31/2028 1,033 2 incomplete08/26/2025
EP-C  EP FOR WELL #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,033 1 incomplete08/26/2025
EP-D  EP FOR WELL #3 ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 IOC notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 NITRATE  Yearly 01/01/2026 - 12/31/2026 302 1 incomplete09/09/2025
EP-D  EP FOR WELL #3 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,033 1 incomplete06/05/2019
EP-D  EP FOR WELL #3 PFAS notes6 Months 01/01/2026 - 06/30/2026 118 1 incomplete12/01/2021
  Initial monitoring - 2 samples only
EP-D  EP FOR WELL #3 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,128 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 RAD - RADIUM 226/228 6 Years 01/01/2023 - 12/31/2028 1,033 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,224 1 incomplete08/30/2022
EP-D  EP FOR WELL #3 SOC notes3 Years 01/01/2026 - 12/31/2028 1,033 2 incomplete09/09/2025
EP-D  EP FOR WELL #3 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,033 1 incomplete09/09/2025
WTP-A  TP FOR KILLAM & FAWCETT CREEKSTOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 27 1 incomplete 11/12/2025

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