OHA Drinking Water Services
OR41
PWS ID: 00073 ---- BAKER CITY

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   30 07/30/2023
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2026 - 06/30/2026 80 4 incomplete01/07/2026
EP-A  EP FOR WATERSHED SOURCES ARSENIC  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete07/02/2025
EP-A  EP FOR WATERSHED SOURCES IOC notes9 Years 01/01/2020 - 12/31/2028 995 1 incomplete04/19/2017
EP-A  EP FOR WATERSHED SOURCES NITRATE  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete07/02/2025
EP-A  EP FOR WATERSHED SOURCES NITRITE notes9 Years 01/01/2020 - 12/31/2028 995 1 incomplete04/19/2017
EP-A  EP FOR WATERSHED SOURCES RAD - GROSS ALPHA  9 Years01/01/2023 - 12/31/2031 2,090 1 done 12/11/2024
EP-A  EP FOR WATERSHED SOURCES RAD - RADIUM 226/228 9 Years01/01/2023 - 12/31/2031 2,090 1 done 12/11/2024
EP-A  EP FOR WATERSHED SOURCES RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,186 1 incomplete12/11/2024
EP-A  EP FOR WATERSHED SOURCES SOC notes3 Years 01/01/2026 - 12/31/2028 995 2 incomplete05/21/2025
EP-A  EP FOR WATERSHED SOURCES VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete07/02/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON  Monthly01/01/200412/31/20081Raw Water TOC Only Required for Reduction in DBP Monitoring
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON  Quarterly01/01/200912/31/20201Raw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200212/31/20071Schedule Reflects Monitoring Reduction Granted. All A/C pipe removed from system by 2008.
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200801/01/20081System is located in an area of potential naturally occurring asbestos.
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200409/30/20141Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200812/31/202320Sample June 1 to Sept 30
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201412/31/20232Sample in Oct, Jan, Apr & July
EP-A  EP FOR WATERSHED SOURCESPFAS  Quarterly01/01/202312/31/20241
EP-A  EP FOR WATERSHED SOURCESRAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-A  EP FOR WATERSHED SOURCESRAD - GROSS ALPHA  9 Years01/01/200812/31/20161Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WATERSHED SOURCESRAD - RADIUM 226/228  6 Years01/01/201712/31/20221
EP-A  EP FOR WATERSHED SOURCESRAD - RADIUM 226/228  9 Years01/01/200812/31/20161Schedule Reflects Monitoring Reduction Granted

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