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

PWS ID: 00225 ---- CORVALLIS, CITY OF

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  Quarterly01/01/2023 - 03/31/2023 58 1 incomplete11/16/2022
CH-B  COMMON HEADER FOR WTP-B TOC & ALKALINITY  Quarterly01/01/2023 - 03/31/2023 58 1 incomplete11/16/2022
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2023 - 12/31/2023   30incomplete09/03/2020
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesQuarterly01/01/2023 - 03/31/2023 58 4 incomplete11/16/2022
EP-A  EP FOR TAYLOR WTP ARSENIC notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/26/2020
EP-A  EP FOR TAYLOR WTP IOC notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/26/2020
EP-A  EP FOR TAYLOR WTP NITRATE  Yearly01/01/2023 - 12/31/2023 333 1 incomplete08/17/2022
EP-A  EP FOR TAYLOR WTP NITRITE notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/18/2021
EP-A  EP FOR TAYLOR WTP RAD - GROSS ALPHA  9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-A  EP FOR TAYLOR WTP RAD - RADIUM 226/228 9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-A  EP FOR TAYLOR WTP RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-A  EP FOR TAYLOR WTP SOC notes3 Years01/01/2023 - 12/31/2025 1,064 2 incomplete08/26/2020
EP-A  EP FOR TAYLOR WTP VOLATILE ORGANICS  Yearly01/01/2023 - 12/31/2023 333 1 incomplete08/17/2022
EP-B  EP FOR ROCK CREEK WTP ARSENIC notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/26/2020
EP-B  EP FOR ROCK CREEK WTP IOC notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/26/2020
EP-B  EP FOR ROCK CREEK WTP NITRATE  Yearly01/01/2023 - 12/31/2023 333 1 incomplete08/17/2022
EP-B  EP FOR ROCK CREEK WTP NITRITE notes9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/18/2021
EP-B  EP FOR ROCK CREEK WTP RAD - GROSS ALPHA  9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-B  EP FOR ROCK CREEK WTP RAD - RADIUM 226/228 9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-B  EP FOR ROCK CREEK WTP RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 2,160 1 done 08/12/2020
EP-B  EP FOR ROCK CREEK WTP SOC notes3 Years01/01/2023 - 12/31/2025 1,064 2 incomplete08/26/2020
EP-B  EP FOR ROCK CREEK WTP VOLATILE ORGANICS  Yearly01/01/2023 - 12/31/2023 333 1 incomplete08/17/2022
WTP-A  TP FOR TAYLOR WTPTOTAL ORGANIC CARBON Quarterly01/01/2023 - 03/31/2023 58 1 incomplete 11/16/2022
WTP-B  TP FOR ROCK CREEK WTPTOTAL ORGANIC CARBON Quarterly01/01/2023 - 03/31/2023 58 1 incomplete 11/16/2022

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
CH-A  COMMON HEADER FOR WTP-ACYANOTOXINS  2 Weeks07/15/201801/24/20191
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Monthly01/01/200212/31/20051Raw and filtered TOC and alkalinity
CH-B  COMMON HEADER FOR WTP-BCYANOTOXINS  2 Weeks07/15/201801/24/20191
CH-B  COMMON HEADER FOR WTP-BTOC & ALKALINITY  Monthly01/01/200212/31/20051Raw and filtered TOC and alkalinity
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200209/30/20122Schedule Reflects Monitoring Reduction Granted
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201209/30/20138Sample in Feb, May, Aug, and Nov
EP-A  EP FOR TAYLOR WTPARSENIC  Yearly01/01/200212/31/20081
EP-A  EP FOR TAYLOR WTPRAD - GROSS ALPHA  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
EP-A  EP FOR TAYLOR WTPRAD - RADIUM 226/228  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
EP-A  EP FOR TAYLOR WTPRAD - URANIUM  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
EP-B  EP FOR ROCK CREEK WTPARSENIC  Yearly01/01/200212/31/20081
EP-B  EP FOR ROCK CREEK WTPRAD - GROSS ALPHA  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
EP-B  EP FOR ROCK CREEK WTPRAD - RADIUM 226/228  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
EP-B  EP FOR ROCK CREEK WTPRAD - URANIUM  6 Years01/01/200812/31/20191Schedule reflects monitoring reduction granted.
WTP-A  TP FOR TAYLOR WTPTOTAL ORGANIC CARBON  Monthly01/01/200212/31/20051Post Filtration TOC
WTP-B  TP FOR ROCK CREEK WTPTOTAL ORGANIC CARBON  Monthly01/01/200212/31/20051Post Filtration TOC

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For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3884