OHA Drinking Water Services
OR41
PWS ID: 00719 ---- UMPQUA BASIN WATER ASSOC

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
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 16 1 incomplete 07/14/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,022 1 done 06/22/2022
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notesYearly 01/01/2026 - 12/31/2026 291 20 incomplete08/08/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 291 2 incomplete11/05/2025
  Seasonal sampling period:   11/01   thru   11/30
EP-A  EP FOR NORTH UMPQUA ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,022 1 incomplete08/07/2019
EP-A  EP FOR NORTH UMPQUA IOC notes9 Years 01/01/2020 - 12/31/2028 1,022 1 incomplete08/07/2019
EP-A  EP FOR NORTH UMPQUA NITRATE  Yearly 01/01/2026 - 12/31/2026 291 1 incomplete06/02/2025
EP-A  EP FOR NORTH UMPQUA NITRITE notes9 Years01/01/2020 - 12/31/2028 1,022 1 done 06/22/2022
EP-A  EP FOR NORTH UMPQUA RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,213 1 incomplete06/21/2018
EP-A  EP FOR NORTH UMPQUA RAD - RADIUM 226/228notes9 Years 01/01/2023 - 12/31/2031 2,117 1 incomplete06/21/2018
EP-A  EP FOR NORTH UMPQUA RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,213 1 incomplete06/21/2018
EP-A  EP FOR NORTH UMPQUA SOC notes3 Years 01/01/2026 - 12/31/2028 1,022 2 incomplete09/09/2025
EP-A  EP FOR NORTH UMPQUA VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 291 1 incomplete10/03/2025
SRC-AA  NORTH UMPQUA RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/27/2025
  Seasonal sampling period:   05/01   thru   10/31

7  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20051Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200609/30/20141Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/202320Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/202412/31/202440
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly01/01/202103/31/20222
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201412/31/20182Sample in Nov, Feb, May, and Aug
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201912/31/20201Sample in August from Rogers and Oak Hill
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201912/31/20201Sample in November from Steinhauer
EP-A  EP FOR NORTH UMPQUAARSENIC  Yearly01/01/200212/31/20081
EP-A  EP FOR NORTH UMPQUAPFAS  Quarterly01/01/202312/31/20241
EP-A  EP FOR NORTH UMPQUARAD - RADIUM 226/228  6 Years01/01/200812/31/20131

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