OHA Drinking Water Services
OR41
PWS ID: 00703 ---- RICHLAND, CITY OF

See also: Coliform Schedules  ::  LT2 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 Years01/01/2020 - 12/31/2028 1,015 1 done 08/24/2022
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER  6 Months 01/01/2026 - 06/30/2026 100 10 incomplete10/16/2025
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 284 1 incomplete08/13/2024
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR INFILTRATION GALLERY ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,110 1 incomplete08/24/2022
EP-A  EP FOR INFILTRATION GALLERY IOC notes9 Years01/01/2020 - 12/31/2028 1,015 1 done 08/24/2022
EP-A  EP FOR INFILTRATION GALLERY NITRATE  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete10/15/2025
EP-A  EP FOR INFILTRATION GALLERY NITRITE notes9 Years01/01/2020 - 12/31/2028 1,015 1 done 08/24/2022
EP-A  EP FOR INFILTRATION GALLERY PFAS notesQuarterly 01/01/2026 - 03/31/2026 9 1 incomplete11/04/2025
  Initial monitoring - 4 quarters only
EP-A  EP FOR INFILTRATION GALLERY RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete08/18/2020
EP-A  EP FOR INFILTRATION GALLERY RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete08/18/2020
EP-A  EP FOR INFILTRATION GALLERY RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,110 1 incomplete08/18/2020
EP-A  EP FOR INFILTRATION GALLERY SOC  3 Years 01/01/2026 - 12/31/2028 1,015 1 incomplete08/23/2023
EP-A  EP FOR INFILTRATION GALLERY VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete10/07/2025

7  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200412/31/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20165Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/201806/30/201810
EP-A  EP FOR INFILTRATION GALLERYARSENIC  3 Years01/01/202012/31/20221
EP-A  EP FOR INFILTRATION GALLERYARSENIC  Yearly01/01/200212/31/20191
EP-A  EP FOR INFILTRATION GALLERYRAD - GROSS ALPHA  6 Years01/01/202012/31/20251
EP-A  EP FOR INFILTRATION GALLERYRAD - GROSS ALPHA  9 Years01/01/200812/31/20181
EP-A  EP FOR INFILTRATION GALLERYRAD - RADIUM 226/228  6 Years01/01/202012/31/20251
EP-A  EP FOR INFILTRATION GALLERYRAD - RADIUM 226/228  9 Years01/01/200812/31/20181
EP-A  EP FOR INFILTRATION GALLERYRAD - URANIUM  6 Years01/01/200812/31/20131

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