OHA Drinking Water Services
OR41
PWS ID: 00203 ---- COLUMBIA CITY MUN WATERWORKS

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 DBP2 HAA5 ONLY notesYearly 01/01/2025 - 12/31/2025 333 1 incomplete05/23/2024
 Seasonal sampling period:  05/01  thru  05/31
DIST-A  DISTRIBUTION SYSTEM DBP2 TTHM ONLY notesYearly 01/01/2025 - 12/31/2025 333 1 incomplete05/23/2024
 Seasonal sampling period:  05/01  thru  05/31
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   10 09/18/2024
 Seasonal sampling period:  06/01  thru  09/30
EP-C  EP FOR WELL #2 AND WELL #1 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete10/27/2022
EP-C  EP FOR WELL #2 AND WELL #1 IOC notes9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete09/29/2022
EP-C  EP FOR WELL #2 AND WELL #1 NITRATE  Yearly 01/01/2025 - 12/31/2025 333 1 incomplete09/24/2024
EP-C  EP FOR WELL #2 AND WELL #1 NITRITE notes9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete10/27/2022
EP-C  EP FOR WELL #2 AND WELL #1 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete10/27/2022
EP-C  EP FOR WELL #2 AND WELL #1 RAD - RADIUM 226/228notes9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete10/27/2022
EP-C  EP FOR WELL #2 AND WELL #1 RAD - URANIUM notes9 Years 01/01/2023 - 12/31/2031 2,524 1 incomplete10/27/2022
EP-C  EP FOR WELL #2 AND WELL #1 SOC  3 Years 01/01/2023 - 12/31/2025 333 1 incomplete11/09/2022
EP-C  EP FOR WELL #2 AND WELL #1 VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 333 1 incomplete09/29/2022

8  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMDBP2 HAA5 ONLY  Quarterly10/01/201312/31/20141Sample in Nov, Feb, May, and Aug at 1510 6th. St.
DIST-A  DISTRIBUTION SYSTEMDBP2 TTHM ONLY  Quarterly10/01/201312/31/20141Sample in Nov, Feb, May, and Aug at 61061 Col R. Hwy (Chimes Crest)
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200406/30/20081
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly07/01/200812/31/201221 Sample Per WTP per QRT
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/201309/30/20132Sample between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/200603/31/200720
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/200806/30/200920Complete 2 6-month Demo Rounds
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/200212/31/200310Sample Between June 1st and Sept 30th
EP-B  EP FOR WELL #1IOC  Yearly01/01/200707/31/20081
EP-B  EP FOR WELL #1NITRATE  Yearly01/01/200707/31/20081
EP-B  EP FOR WELL #1NITRITE  3 Years01/01/200707/31/20081
EP-B  EP FOR WELL #1SOC  3 Years01/01/200707/31/20081
EP-B  EP FOR WELL #1VOLATILE ORGANICS  Yearly01/01/200707/31/20081
EP-C  EP FOR WELL #2 AND WELL #1ARSENIC  3 Years01/01/200812/31/20131
EP-C  EP FOR WELL #2 AND WELL #1IOC  3 Years01/01/200812/31/20101
EP-C  EP FOR WELL #2 AND WELL #1IOC  3 Years01/01/201112/31/20131
EP-C  EP FOR WELL #2 AND WELL #1NITRITE  3 Years01/01/200812/31/20131
EP-C  EP FOR WELL #2 AND WELL #1RAD - GROSS ALPHA  Quarterly07/01/200809/30/20081
EP-C  EP FOR WELL #2 AND WELL #1RAD - RADIUM 226/228  Quarterly07/01/200809/30/20081
EP-C  EP FOR WELL #2 AND WELL #1RAD - URANIUM  Quarterly07/01/200809/30/20081
EP-C  EP FOR WELL #2 AND WELL #1TOLUENE   Quarterly07/01/200806/30/20091
EP-C  EP FOR WELL #2 AND WELL #1VOLATILE ORGANICS  Yearly01/01/200812/31/20091Sample Quarterly for Toluene 7/1/08 - 06/30/09

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