OHA Drinking Water Services
OR41
PWS ID: 00898 ---- TIMBER WATER ASSOCIATION

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
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   5incomplete07/31/2020
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 336 1 incomplete07/18/2023
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP FOR NEHALEM RIVER ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,527 1 incomplete09/12/2022
EP-A  EP FOR NEHALEM RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,432 1 done 09/12/2022
EP-A  EP FOR NEHALEM RIVER NITRATE  Yearly 01/01/2025 - 12/31/2025 336 1 incomplete11/16/2023
EP-A  EP FOR NEHALEM RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,432 1 done 09/12/2022
EP-A  EP FOR NEHALEM RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 336 1 done 09/12/2022
EP-A  EP FOR NEHALEM RIVER RAD - RADIUM 226/228notes9 Years 01/01/2023 - 12/31/2031 2,527 1 incomplete09/12/2022
EP-A  EP FOR NEHALEM RIVER RAD - URANIUM notes9 Years 01/01/2023 - 12/31/2031 2,527 1 incomplete09/12/2022
EP-A  EP FOR NEHALEM RIVER SOC  3 Years 01/01/2023 - 12/31/2025 336 1 incomplete09/12/2022
EP-A  EP FOR NEHALEM RIVER VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 336 1 incomplete12/27/2022

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200412/31/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20155Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/201606/30/201710
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201412/31/20201Sample in July
EP-A  EP FOR NEHALEM RIVERARSENIC  Yearly01/01/200212/31/20131
EP-A  EP FOR NEHALEM RIVERRAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-A  EP FOR NEHALEM RIVERRAD - URANIUM  6 Years01/01/200812/31/20131

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More information for this water system: SDWIS ID 3996
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