OHA Drinking Water Services
OR41
PWS ID: 91700 ---- PIONEER VILLA

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 LEAD & COPPER notesYearly 01/01/2026 - 12/31/2026 252 5 incomplete08/10/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2026 - 12/31/2026   1incomplete08/04/2023
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR WELL (97) ARSENIC  9 Years 01/01/2020 - 12/31/2028 983 1 incomplete08/19/2019
EP-A  EP FOR WELL (97) IOC  9 Years 01/01/2020 - 12/31/2028 983 1 incomplete08/19/2019
EP-A  EP FOR WELL (97) NITRATE  Yearly 01/01/2026 - 12/31/2026 252 1 incomplete08/11/2025
EP-A  EP FOR WELL (97) NITRITE  9 Years 01/01/2020 - 12/31/2028 983 1 incomplete08/19/2019
EP-A  EP FOR WELL (97) PFAS notes6 Months 01/01/2026 - 06/30/2026 68 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL (97) SOC  3 Years 01/01/2026 - 12/31/2028 983 1 incomplete08/11/2025
EP-A  EP FOR WELL (97) VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 983 1 incomplete08/11/2025

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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  3 Years01/01/201606/30/20215Sample between June 1st and September 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/202206/30/202310
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/201112/31/20155
EP-A  EP FOR WELL (97)ARSENIC  3 Years01/01/201112/31/20191
EP-A  EP FOR WELL (97)IOC  3 Years01/01/201112/31/20191
EP-A  EP FOR WELL (97)NITRITE  3 Years01/01/201112/31/20191
EP-A  EP FOR WELL (97)SOC  Yearly01/01/201112/13/20151
EP-A  EP FOR WELL (97)VOLATILE ORGANICS  Yearly01/01/201112/13/20151

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