OHA Drinking Water Services
Related:  Coliform Schedules

PWS ID: 00582 ---- OAKRIDGE, 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
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,925 1 incomplete06/20/2019
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2023 - 12/31/2023   10done 08/23/2023
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly01/01/2023 - 12/31/2023 98 2 done 06/15/2023
 Seasonal sampling period:  06/01  thru  06/30
EP-A  EP FOR WELLFIELD ARSENIC notes9 Years01/01/2023 - 12/31/2031 3,020 1 incomplete06/05/2019
EP-A  EP FOR WELLFIELD IOC notes9 Years01/01/2020 - 12/31/2028 1,925 1 incomplete06/05/2019
EP-A  EP FOR WELLFIELD NITRATE  Yearly01/01/2023 - 12/31/2023 98 1 done 09/01/2023
EP-A  EP FOR WELLFIELD NITRITE notes9 Years01/01/2020 - 12/31/2028 1,925 1 incomplete06/05/2019
EP-A  EP FOR WELLFIELD RAD - GROSS ALPHA  9 Years01/01/2017 - 12/31/2025 829 1 incomplete06/16/2016
EP-A  EP FOR WELLFIELD RAD - RADIUM 226/228 9 Years01/01/2017 - 12/31/2025 829 1 incomplete06/16/2016
EP-A  EP FOR WELLFIELD RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 1,925 1 incomplete06/16/2016
EP-A  EP FOR WELLFIELD SOC  3 Years01/01/2023 - 12/31/2025 829 1 incomplete11/28/2022
EP-A  EP FOR WELLFIELD VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 829 1 incomplete11/28/2022

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  3 Years01/01/201112/31/20131Sample between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200612/31/20091Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201412/31/20212Sample in June
EP-A  EP FOR WELLFIELDARSENIC  3 Years01/01/200212/31/20041Closed - reducing frequency to once every 9 years based on 3 consecutive sample results below MCL of 10 ppb with approved lab methods per Kurt Putnam 3/11/05.
EP-A  EP FOR WELLFIELDRAD - URANIUM  6 Years01/01/200812/31/20101
EP-A  EP FOR WELLFIELDSOC  3 Years01/01/200212/31/200422 Consec. QT Samples
EP-A  EP FOR WELLFIELDVOLATILE ORGANICS  3 Years01/01/200212/31/20171
EP-A  EP FOR WELLFIELDVOLATILE ORGANICS  Yearly01/01/201812/31/20221

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