OHA Drinking Water Services
Related:  Coliform Schedules  ::  LT2 Schedules

PWS ID: 00379 ---- JOINT WATER COMMISSION

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-A TOC & ALKALINITY notesQuarterly10/01/2022 - 12/31/2022 91 1 incomplete08/03/2022
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly01/01/2022 - 12/31/2022 91 1 done 07/13/2022
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP FOR TUALATIN RIVERHEXACHLOROCYCLOPENTADIENE  Quarterly10/01/2022 - 12/31/2022 91 1 incomplete 07/06/2022
EP-A  EP FOR TUALATIN RIVER ARSENIC notes9 Years01/01/2020 - 12/31/2028 2,283 1 done 03/31/2022
EP-A  EP FOR TUALATIN RIVER IOC notes9 Years01/01/2020 - 12/31/2028 2,283 1 done 03/31/2022
EP-A  EP FOR TUALATIN RIVER NITRATE  Yearly01/01/2022 - 12/31/2022 91 1 done 03/31/2022
EP-A  EP FOR TUALATIN RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 2,283 1 done 03/31/2022
EP-A  EP FOR TUALATIN RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 1,187 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER RAD - RADIUM 226/228 9 Years01/01/2014 - 12/31/2022 91 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 1,187 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER SOC notes3 Years01/01/2020 - 12/31/2022 91 2 done 03/31/2022
EP-A  EP FOR TUALATIN RIVER VOLATILE ORGANICS  Yearly01/01/2022 - 12/31/2022 91 1 done 03/31/2022
SRC-AA  TUALATIN RIVER CYANOTOXINS  2 Weeks09/18/2022 - 10/01/2022 0 1 done 09/19/2022
 Seasonal sampling period:  05/01  thru  10/31
WTP-A  TP FOR TUALATIN RIVERTOTAL ORGANIC CARBONnotesMonthly10/01/2022 - 10/31/2022 30 1 incomplete 08/03/2022

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