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 8 2 incomplete10/20/2025
EP-A  EP FOR LAYNG CREEK ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,014 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 1,014 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 283 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,014 1 incomplete12/06/2017
EP-A  EP FOR LAYNG CREEK PFAS notesQuarterly 01/01/2026 - 03/31/2026 8 1 incomplete12/17/2025
  Initial monitoring - 4 quarters only
EP-A  EP FOR LAYNG CREEK RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,205 1 incomplete12/02/2016
EP-A  EP FOR LAYNG CREEK RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,205 1 incomplete12/02/2016
EP-A  EP FOR LAYNG CREEK RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,205 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK SOC  3 Years 01/01/2026 - 12/31/2028 1,014 1 incomplete11/18/2025
EP-A  EP FOR LAYNG CREEK VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 283 1 incomplete11/18/2025

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