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 notesQuarterly10/01/2021 - 12/31/2021 28 1 done 10/11/2021
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly01/01/2021 - 12/31/2021 28 1 done 07/08/2021
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP FOR TUALATIN RIVERHEXACHLOROCYCLOPENTADIENE notesYearly01/01/2021 - 12/31/2021 28 1 done 04/07/2021
 Seasonal sampling period:  10/01  thru  12/31
EP-A  EP FOR TUALATIN RIVER ARSENIC notes9 Years01/01/2020 - 12/31/2028 2,585 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER IOC notes9 Years01/01/2020 - 12/31/2028 2,585 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER NITRATE  Yearly01/01/2021 - 12/31/2021 28 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 2,585 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 1,489 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER RAD - RADIUM 226/228 9 Years01/01/2014 - 12/31/2022 393 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 1,489 1 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER SOC notes3 Years01/01/2020 - 12/31/2022 393 2 done 04/07/2021
EP-A  EP FOR TUALATIN RIVER VOLATILE ORGANICS  Yearly01/01/2021 - 12/31/2021 28 1 done 04/07/2021
SRC-AA  TUALATIN RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/18/2021
 Seasonal sampling period:  05/01  thru  10/31
WTP-A  TP FOR TUALATIN RIVERTOTAL ORGANIC CARBONnotesMonthly12/01/2021 - 12/31/2021 28 1 incomplete 10/11/2021

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