OHA Drinking Water Services
OR41
PWS ID: 05364 ---- MT TERRACE MHP

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   5 07/13/2023
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2026 - 12/31/2026   1  09/13/2023
 Seasonal sampling period:  09/01  thru  09/30
EP-A  EP FOR WELLS #1 & #4 IOC notes9 Years 01/01/2020 - 12/31/2028 1,430 1 incomplete03/19/2017
EP-A  EP FOR WELLS #1 & #4 NITRATE  Yearly 01/01/2025 - 12/31/2025 334 1 incomplete11/06/2024
EP-A  EP FOR WELLS #1 & #4 NITRITE  9 Years 01/01/2020 - 12/31/2028 1,430 1 incomplete03/19/2017
EP-A  EP FOR WELLS #1 & #4 RAD - GROSS ALPHA  9 Years 01/01/2017 - 12/31/2025 334 1 incomplete04/29/2014
EP-A  EP FOR WELLS #1 & #4 RAD - RADIUM 226/228 9 Years 01/01/2017 - 12/31/2025 334 1 incomplete04/29/2014
EP-A  EP FOR WELLS #1 & #4 RAD - URANIUM  9 Years 01/01/2017 - 12/31/2025 334 1 incomplete04/29/2014
EP-A  EP FOR WELLS #1 & #4 SOC  3 Years 01/01/2023 - 12/31/2025 334 1 incomplete11/17/2022
EP-A  EP FOR WELLS #1 & #4 VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 334 1 incomplete12/28/2022
POU-01 (#25)  POU FOR SITE #25 ARSENIC notesQuarterly 01/01/2025 - 03/31/2025 59 1 incomplete12/04/2024
POU-25  POU FOR ARSENIC REMOVAL ARSENIC notesYearly 01/01/2025 - 12/31/2025 334 8 incomplete02/08/2024

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  3 Years01/01/200512/31/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200412/31/20041Sample Between June 1st and Sept 30th Each Year
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/200212/31/20035Sample Between June 1st and Sept 30th
EP-A  EP FOR WELLS #1 & #4ARSENIC  3 Years01/01/200212/31/20161
EP-A  EP FOR WELLS #1 & #4ARSENIC  Quarterly01/01/201706/30/20191
EP-A  EP FOR WELLS #1 & #4IOC  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLS #1 & #4NITRITE  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLS #1 & #4RAD - GROSS ALPHA  Quarterly01/01/201006/30/20141
EP-A  EP FOR WELLS #1 & #4RAD - RADIUM 226/228  Quarterly01/01/201006/30/20141
EP-A  EP FOR WELLS #1 & #4RAD - URANIUM  Quarterly01/01/201006/30/20141
POU-25  POU FOR ARSENIC REMOVALARSENIC  Quarterly07/01/201906/30/20208Sample one third of the total number of point-of-use devices every calendar quarter.

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More information for this water system: SDWIS ID 3861
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