OHA Drinking Water Services
OR41
PWS ID: 00821 ---- SILETZ, 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 notesQuarterly 01/01/2026 - 03/31/2026 15 1 incomplete10/01/2025
DIST-A  Distribution System ASBESTOS, DIST  9 Years 01/01/2020 - 12/31/2028 1,021 1 incomplete08/09/2017
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2026 - 12/31/2026 290 1 incomplete10/01/2025
  Seasonal sampling period:   10/01   thru   10/31
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2026 - 12/31/2026 290 1 incomplete10/01/2025
  Seasonal sampling period:   10/01   thru   10/31
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   10 09/26/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR SILETZ RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,021 1 incomplete08/09/2017
EP-A  EP FOR SILETZ RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,021 1 incomplete08/09/2017
EP-A  EP FOR SILETZ RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 290 1 incomplete09/03/2025
EP-A  EP FOR SILETZ RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,021 1 incomplete08/09/2017
EP-A  EP FOR SILETZ RIVER PFAS notesQuarterly 01/01/2026 - 03/31/2026 15 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR SILETZ RIVER RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,212 1 incomplete06/11/2025
EP-A  EP FOR SILETZ RIVER RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,212 1 incomplete06/11/2025
EP-A  EP FOR SILETZ RIVER RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,212 1 incomplete06/11/2025
EP-A  EP FOR SILETZ RIVER SOC  3 Years 01/01/2026 - 12/31/2028 1,021 1 incomplete09/03/2025
EP-A  EP FOR SILETZ RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 290 1 incomplete09/03/2025
WTP-A  TP FOR SILETZ RIVER TOC & ALKALINITY  Quarterly 01/01/2026 - 03/31/2026 15 1 incomplete10/01/2025

5  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON  Monthly01/01/200403/31/20071Raw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A  Distribution SystemDBP2 HAA5 ONLY  Quarterly10/01/201312/31/20141Sample in Oct, Jan, Apr, and July at #2 CAMP 12 LOOP
DIST-A  Distribution SystemDBP2 TTHM ONLY  Quarterly10/01/201312/31/20141Sample in Oct, Jan, Apr, and July at #1 WWTP
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20061Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200709/30/20131Sample between June 1 and Sept. 30. Monioring reduction granted.
EP-A  EP FOR SILETZ RIVERARSENIC  Yearly01/01/200212/31/20091
SRC-AB  SILETZ RIVERCYANOTOXINS  2 Weeks07/15/201801/24/20191

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