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 2,070 1 incomplete06/12/2019
EP-A  EP FOR WELLS IOC notes9 Years 01/01/2020 - 12/31/2028 975 1 incomplete06/12/2019
EP-A  EP FOR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 244 1 incomplete12/11/2024
EP-A  EP FOR WELLS NITRITE notes9 Years 01/01/2020 - 12/31/2028 975 1 incomplete06/12/2019
EP-A  EP FOR WELLS PFAS notes6 Months 01/01/2026 - 06/30/2026 60 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 3,166 1 incomplete11/19/2025
EP-A  EP FOR WELLS RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,166 1 incomplete11/19/2025
EP-A  EP FOR WELLS RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,166 1 incomplete11/19/2025
EP-A  EP FOR WELLS SOC  3 Years 01/01/2026 - 12/31/2028 975 1 incomplete01/10/2023
EP-A  EP FOR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 975 1 incomplete01/10/2023

5  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200812/04/20091New maps made by Shawn S. show this system is not located in a area prone to asbestos. 12/4/09 AB System is located in an area of potential naturally occurring asbestos.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20195Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 IDSE  Yearly01/01/201812/31/20182collect dual sets of samples in July
EP-A  EP FOR WELLSARSENIC  3 Years01/01/200212/31/20131

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