OHA Drinking Water Services
OR41
PWS ID: 00825 ---- SILVERTON MOBILE ESTATES

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 notes3 Years01/01/2028 - 12/31/2028   5 07/29/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2028 - 12/31/2028   1 08/13/2025
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP for WELL ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,103 1 incomplete11/13/2019
EP-A  EP for WELL IOC notes9 Years 01/01/2020 - 12/31/2028 1,008 1 incomplete11/13/2019
EP-A  EP for WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 277 1 incomplete07/30/2025
EP-A  EP for WELL NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,008 1 incomplete11/13/2019
EP-A  EP for WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 93 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP for WELL RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,199 1 incomplete03/29/2021
EP-A  EP for WELL RAD - RADIUM 226/228 9 Years01/01/2020 - 12/31/2028 1,008 1 done 10/19/2020
EP-A  EP for WELL RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,199 1 incomplete03/29/2021
EP-A  EP for WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,008 1 incomplete07/31/2023
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,008 1 incomplete07/31/2023

5  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20195Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/202012/31/20225
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/202112/31/20252IDSE schedule: Collect dual sample sets at IDSE-01 and IDSE-02 between June 1st and Sept 30th
EP-A  EP for WELLARSENIC  3 Years01/01/200212/31/20131
EP-A  EP for WELLRAD - GROSS ALPHA  6 Years01/01/202012/31/20251
EP-A  EP for WELLRAD - GROSS ALPHA  9 Years01/01/200812/31/20191Schedule Reflects Monitoring Reduction Granted
EP-A  EP for WELLRAD - RADIUM 226/228  3 Years01/01/200812/31/20191

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