OHA Drinking Water Services
OR41
PWS ID: 00811 ---- SHERIDAN, 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-A  COMMON HEADER FOR WTP-A TOC & ALKALINITY notesQuarterly 01/01/2026 - 03/31/2026 70 1 incomplete07/16/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,076 1 done 06/14/2021
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   20 06/10/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 345 2 incomplete08/27/2024
 Seasonal sampling period:  08/01  thru  08/31
EP-A  EP FOR SOUTH YAMHILL RIVER ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,076 1 incomplete06/18/2019
EP-A  EP FOR SOUTH YAMHILL RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,076 1 incomplete06/18/2019
EP-A  EP FOR SOUTH YAMHILL RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 345 1 incomplete08/27/2024
EP-A  EP FOR SOUTH YAMHILL RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,076 1 incomplete06/18/2019
EP-A  EP FOR SOUTH YAMHILL RIVER RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,267 1 incomplete04/19/2016
EP-A  EP FOR SOUTH YAMHILL RIVER RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,171 1 incomplete03/01/2022
EP-A  EP FOR SOUTH YAMHILL RIVER RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,267 1 incomplete08/18/2015
EP-A  EP FOR SOUTH YAMHILL RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 1,076 2 incomplete10/08/2025
EP-A  EP FOR SOUTH YAMHILL RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 345 1 incomplete09/10/2025
EP-B  EP FOR SPRINGS ARSENIC notes9 Years01/01/2020 - 12/31/2028 1,076 1 done 06/01/2021
EP-B  EP FOR SPRINGS IOC notes9 Years01/01/2020 - 12/31/2028 1,076 1 done 06/01/2021
EP-B  EP FOR SPRINGS NITRATE  Yearly 01/01/2026 - 12/31/2026 345 1 incomplete10/28/2025
EP-B  EP FOR SPRINGS NITRITE notes9 Years01/01/2020 - 12/31/2028 1,076 1 done 06/01/2021
EP-B  EP FOR SPRINGS RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,267 1 incomplete04/19/2016
EP-B  EP FOR SPRINGS RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,171 1 incomplete07/17/2018
EP-B  EP FOR SPRINGS RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,267 1 incomplete08/18/2015
EP-B  EP FOR SPRINGS SOC notes3 Years 01/01/2026 - 12/31/2028 1,076 2 incomplete10/08/2025
EP-B  EP FOR SPRINGS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,076 1 incomplete09/06/2023
WTP-A  TP FOR SOUTH YAMHILL RIVERTOTAL ORGANIC CARBONnotesQuarterly01/01/2026 - 03/31/2026 70 1 incomplete 07/16/2025

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Monthly01/01/200412/31/20051Raw and filtered TOC and alkalinity
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20052Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200609/30/20132Sample between June 1 and Sept. 30. One perWTP.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200206/30/202220Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/202306/30/202540
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201309/30/20142Sample in Nov, Feb, May, and Aug
EP-A  EP FOR SOUTH YAMHILL RIVERARSENIC  Yearly01/01/200212/31/20061
EP-A  EP FOR SOUTH YAMHILL RIVERRAD - RADIUM 226/228  3 Years01/01/200812/31/20221
EP-B  EP FOR SPRINGSARSENIC  3 Years01/01/200212/31/20071
SRC-AA  SOUTH YAMHILL RIVERCYANOTOXINS  2 Weeks07/15/201801/24/20191
WTP-A  TP FOR SOUTH YAMHILL RIVERTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20051Post Filtration TOC

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