OHA Drinking Water Services
OR41
PWS ID: 00792 ---- SCAPPOOSE, 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
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBONnotesQuarterly01/01/2026 - 03/31/2026 54 1 incomplete 05/14/2025
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   20incomplete09/20/2023
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 329 1 incomplete03/12/2025
 Seasonal sampling period:  03/01  thru  03/31
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 329 1 incomplete03/12/2025
 Seasonal sampling period:  12/01  thru  12/31
EP-A  EP FOR WTP-A ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,251 1 incomplete07/16/2025
EP-A  EP FOR WTP-A IOC notes9 Years 01/01/2020 - 12/31/2028 1,060 1 incomplete01/16/2019
EP-A  EP FOR WTP-A NITRATE  Yearly 01/01/2026 - 12/31/2026 329 1 incomplete07/16/2025
EP-A  EP FOR WTP-A NITRITE notes9 Years01/01/2020 - 12/31/2028 1,060 1 done 07/16/2025
EP-A  EP FOR WTP-A RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,251 1 incomplete07/16/2025
EP-A  EP FOR WTP-A RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,251 1 incomplete07/16/2025
EP-A  EP FOR WTP-A RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,251 1 incomplete07/16/2025
EP-A  EP FOR WTP-A SOC notes3 Years 01/01/2026 - 12/31/2028 1,060 2 incomplete07/16/2025
EP-A  EP FOR WTP-A VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 329 1 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,060 1 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS IOC  3 Years 01/01/2026 - 12/31/2028 1,060 1 incomplete11/30/2016
EP-B  EP FOR MILLER ROAD WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 329 1 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS NITRITE  3 Years 01/01/2026 - 12/31/2028 1,060 1 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,155 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,155 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,155 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 1,060 2 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 329 1 incomplete07/16/2025

5  secs
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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  Monthly01/01/200412/31/20101Raw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20051Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200609/30/20132Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/200206/30/200240
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201312/31/20142Sample During December, March, June, and September
EP-A  EP FOR WTP-AARSENIC  Yearly01/01/200212/31/20071
EP-B  EP FOR MILLER ROAD WELLSARSENIC  9 Years01/01/200812/31/20221Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR MILLER ROAD WELLSIOC  3 Years01/01/200512/31/20071
EP-B  EP FOR MILLER ROAD WELLSIOC  9 Years01/01/200812/31/20221Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR MILLER ROAD WELLSNITRITE  3 Years01/01/200512/31/20071
EP-B  EP FOR MILLER ROAD WELLSNITRITE  9 Years01/01/200812/31/20221Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR MILLER ROAD WELLSRAD - GROSS ALPHA  6 Years01/01/201706/30/20221
EP-B  EP FOR MILLER ROAD WELLSRAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-B  EP FOR MILLER ROAD WELLSRAD - GROSS ALPHA  Quarterly07/01/202212/31/20221
EP-B  EP FOR MILLER ROAD WELLSRAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-B  EP FOR MILLER ROAD WELLSRAD - RADIUM 226/228  9 Years01/01/201406/30/20221Schedule Reflects Monitoring Reduction Granted.
EP-B  EP FOR MILLER ROAD WELLSRAD - RADIUM 226/228  Quarterly07/01/202212/31/20221
EP-B  EP FOR MILLER ROAD WELLSRAD - URANIUM  6 Years01/01/200812/31/20131
EP-B  EP FOR MILLER ROAD WELLSRAD - URANIUM  9 Years01/01/201412/31/20221Schedule Reflects Monitoring Reduction Granted.
EP-B  EP FOR MILLER ROAD WELLSSOC  Quarterly07/01/200612/31/20061
EP-B  EP FOR MILLER ROAD WELLSVOLATILE ORGANICS  3 Years01/01/200812/31/20211
EP-B  EP FOR MILLER ROAD WELLSVOLATILE ORGANICS  Quarterly07/01/200612/31/20061

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