OHA Drinking Water Services
OR41
PWS ID: 00246 ---- CRESWELL, CITY OF

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-B  COMMON HEADER FOR WTP-BTOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 58 1 incomplete 08/11/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST  9 Years 01/01/2023 - 12/31/2031 2,159 1 incomplete08/17/2015
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   20 08/07/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 58 2 incomplete08/11/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,064 1 incomplete07/22/2019
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,064 1 incomplete07/22/2019
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 333 1 incomplete01/09/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,064 1 incomplete07/22/2019
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,255 1 incomplete07/21/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,255 1 incomplete07/21/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,255 1 incomplete07/21/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 1,064 2 incomplete07/21/2025
EP-B  EP FOR GARDEN LAKE WELLS AND RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 333 1 incomplete07/21/2025
SRC-BK  WILLAMETTE RIVER (COAST FORK) CYANOTOXINS  2 Weeks-- -- -- -- --10/27/2025
 Seasonal sampling period:  05/01  thru  10/31

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-B  COMMON HEADER FOR WTP-BTOC & ALKALINITY  Monthly01/01/200412/31/20041Raw and filtered TOC and alkalinity
CH-B  COMMON HEADER FOR WTP-BTOC & ALKALINITY  Quarterly01/01/200512/31/20091Schedule reflects monitoring reduction granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20042Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200509/30/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200512/31/200920Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/200312/31/200340
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/201012/31/201040
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201306/30/20252Sample in Nov, Feb, May, Aug.
EP-A  EP FOR EMERALD VALLEY WELLFIELDARSENIC  3 Years01/01/200212/31/20061
EP-A  EP FOR EMERALD VALLEY WELLFIELDARSENIC  Quarterly01/01/200712/31/20091
EP-A  EP FOR EMERALD VALLEY WELLFIELDIOC  9 Years01/01/200212/31/20091Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR EMERALD VALLEY WELLFIELDNITRATE  Yearly01/01/200212/31/20091
EP-A  EP FOR EMERALD VALLEY WELLFIELDNITRITE  9 Years01/01/200212/31/20091Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR EMERALD VALLEY WELLFIELDRAD - GROSS ALPHA  9 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-A  EP FOR EMERALD VALLEY WELLFIELDRAD - RADIUM 226/228  9 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-A  EP FOR EMERALD VALLEY WELLFIELDRAD - URANIUM  6 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-A  EP FOR EMERALD VALLEY WELLFIELDSOC  3 Years01/01/200212/31/200922 Consec. QT Samples
EP-A  EP FOR EMERALD VALLEY WELLFIELDVOLATILE ORGANICS  3 Years01/01/200212/31/20091
EP-B  EP FOR GARDEN LAKE WELLS AND RIVERARSENIC  3 Years01/01/200212/31/20061
EP-B  EP FOR GARDEN LAKE WELLS AND RIVERARSENIC  Quarterly01/01/200709/30/20101
EP-B  EP FOR GARDEN LAKE WELLS AND RIVERCYANOTOXINS  WK 09/17/202110/16/20211
EP-B  EP FOR GARDEN LAKE WELLS AND RIVERVOLATILE ORGANICS  Yearly01/01/201012/31/20121
EP-B  EP FOR GARDEN LAKE WELLS AND RIVERXYLENES, TOTAL   Quarterly01/01/201209/30/20121system has had more than 4 consecutive quarters with results reliably and consistently below the MCL. Reduce back to annual.
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)ARSENIC  Yearly01/01/200212/31/20091
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)IOC  9 Years01/01/200212/31/20091Schedule Reflects Monitoring Reduction Granted
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)NITRATE  Yearly01/01/200212/31/20091
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)NITRITE  9 Years01/01/200212/31/20091Schedule Reflects Monitoring Reduction Granted
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)RAD - GROSS ALPHA  9 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)RAD - RADIUM 226/228  6 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)RAD - URANIUM  9 Years01/01/200812/31/20091Schedule reflects monitoring reduction granted.
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)SOC  3 Years01/01/200212/31/200922 Consec. QT Samples
EP-C  EP FOR WILLAMETTE RIVER (COAST FORK)VOLATILE ORGANICS  Yearly01/01/200212/31/20091
SRC-BK  WILLAMETTE RIVER (COAST FORK)CYANOTOXINS  2 Weeks07/15/201809/17/20211
SRC-BK  WILLAMETTE RIVER (COAST FORK)CYANOTOXINS  WK 09/19/202110/16/20211
WTP-B  TP FOR G.L.WELLS AND RIVER (COAST FORK)TOTAL ORGANIC CARBON  Monthly01/01/200412/31/20041Post Filtration TOC
WTP-B  TP FOR G.L.WELLS AND RIVER (COAST FORK)TOTAL ORGANIC CARBON  Quarterly01/01/200510/31/20121Schedule reflects monitoring reduction granted. no longer needing a finished water TOC schedule as this is a membrane plant. 11/28/2012 cel

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More information for this water system: SDWIS ID 3945
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