OHA Drinking Water Services
OR41
PWS ID: 01450 ---- UNITY, CITY OF

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 Years01/01/2026 - 12/31/2026   5incomplete08/16/2023
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2027 - 12/31/2027   1 08/21/2024
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR WELLS ARSENIC  9 Years 01/01/2023 - 12/31/2031 2,071 1 incomplete06/12/2019
EP-A  EP FOR WELLS IOC notes9 Years 01/01/2020 - 12/31/2028 976 1 incomplete06/12/2019
EP-A  EP FOR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 245 1 incomplete12/11/2024
EP-A  EP FOR WELLS NITRITE notes9 Years 01/01/2020 - 12/31/2028 976 1 incomplete06/12/2019
EP-A  EP FOR WELLS PFAS notes6 Months 01/01/2026 - 06/30/2026 61 1 incomplete10/22/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,167 1 incomplete11/19/2025
EP-A  EP FOR WELLS RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,167 1 incomplete11/19/2025
EP-A  EP FOR WELLS RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,167 1 incomplete11/19/2025
EP-A  EP FOR WELLS SOC  3 Years 01/01/2026 - 12/31/2028 976 1 incomplete01/10/2023
EP-A  EP FOR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 976 1 incomplete01/10/2023

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