OHA Drinking Water Services
OR41
PWS ID: 01216 ---- DUFUR, SOUTH BASIN

See also: Coliform 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 ASBESTOS, DIST notes9 Years 01/01/2026 - 12/31/2034 3,162 1 incomplete10/21/2025
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2026 - 12/31/2026 240 1 incomplete09/16/2025
  Seasonal sampling period:   09/01   thru   09/30
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2026 - 12/31/2026 240 1 incomplete09/16/2025
  Seasonal sampling period:   09/01   thru   09/30
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   5 09/27/2024
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL #3 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,066 1 incomplete10/19/2022
EP-A  EP FOR WELL #3 IOC notes9 Years 01/01/2020 - 12/31/2028 971 1 incomplete08/01/2012
EP-A  EP FOR WELL #3 NITRATE  Yearly 01/01/2026 - 12/31/2026 240 1 incomplete10/21/2025
EP-A  EP FOR WELL #3 NITRITE notes9 Years 01/01/2020 - 12/31/2028 971 1 incomplete08/01/2012
EP-A  EP FOR WELL #3 PFAS notes6 Months 01/01/2026 - 06/30/2026 56 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #3 RAD - GROSS ALPHA  6 Years 01/01/2023 - 12/31/2028 971 1 incomplete10/19/2022
EP-A  EP FOR WELL #3 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,162 1 incomplete09/28/2016
EP-A  EP FOR WELL #3 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,162 1 incomplete10/21/2025
EP-A  EP FOR WELL #3 SOC  3 Years 01/01/2026 - 12/31/2028 971 1 incomplete10/21/2025
EP-A  EP FOR WELL #3 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 971 1 incomplete10/21/2025

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