OHA Drinking Water Services
OR41
PWS ID: 01515 ---- ROW RIVER VALLEY WATER DIST

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
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   5incomplete08/25/2022
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 21 2 incomplete10/20/2025
EP-A  EP FOR LAYNG CREEK ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,027 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 1,027 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 296 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,027 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK PFAS notesQuarterly 01/01/2026 - 03/31/2026 21 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR LAYNG CREEK RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,218 1 incomplete12/02/2016
EP-A  EP FOR LAYNG CREEK RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,218 1 incomplete12/02/2016
EP-A  EP FOR LAYNG CREEK RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,218 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK SOC  3 Years 01/01/2026 - 12/31/2028 1,027 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 296 1 incomplete11/18/2025

5  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/201112/31/20131Sample between June 1 and Sept 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/201112/31/201510
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/201612/31/20175Sample between June 1st and September 30th
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201409/30/20221Sample During August
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 IDSE  Yearly01/01/201312/31/20132Sample During Peak Historical Month for High DBPs

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More information for this water system: SDWIS ID 5068
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