OHA Drinking Water Services
OR41
PWS ID: 00958 ---- YONCALLA, 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  Quarterly 01/01/2025 - 03/31/2025 76 1 incomplete10/01/2024
DIST-A  Distribution System ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,447 1 incomplete07/17/2019
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2025 - 12/31/2025 351 1 incomplete01/23/2024
 Seasonal sampling period:  01/01  thru  01/31
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2025 - 12/31/2025 351 1 incomplete07/02/2024
 Seasonal sampling period:  07/01  thru  07/31
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   10 06/20/2023
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP FOR WILSON & ADAMS CREEKS ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,447 1 incomplete05/09/2019
EP-A  EP FOR WILSON & ADAMS CREEKS IOC notes9 Years 01/01/2020 - 12/31/2028 1,447 1 incomplete05/09/2019
EP-A  EP FOR WILSON & ADAMS CREEKS NITRATE  Yearly 01/01/2025 - 12/31/2025 351 1 incomplete04/02/2024
EP-A  EP FOR WILSON & ADAMS CREEKS NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,447 1 incomplete05/09/2019
EP-A  EP FOR WILSON & ADAMS CREEKS RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,542 1 incomplete10/27/2022
EP-A  EP FOR WILSON & ADAMS CREEKS RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,542 1 incomplete05/09/2019
EP-A  EP FOR WILSON & ADAMS CREEKS RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 1,447 1 incomplete11/21/2019
EP-A  EP FOR WILSON & ADAMS CREEKS SOC  3 Years 01/01/2023 - 12/31/2025 351 1 incomplete10/27/2022
EP-A  EP FOR WILSON & ADAMS CREEKS VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 351 1 incomplete04/02/2024
WTP-A  TP FOR WILSON & ADAMS CREEKSTOTAL ORGANIC CARBON Quarterly01/01/2025 - 03/31/2025 76 1 incomplete 10/01/2024

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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 SystemDBP2 HAA5 ONLY  Quarterly10/01/201312/31/20191Sample in Oct, Jan, Apr, and July at SM-2
DIST-A  Distribution SystemDBP2 TTHM ONLY  Quarterly10/01/201312/31/20191Sample in Oct, Jan, Apr, and July at S1-1 STAGE 1
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20062Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200712/31/20101
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/201109/30/20131Sample between June 1 & Sept. 30
EP-A  EP FOR WILSON & ADAMS CREEKSARSENIC  Yearly01/01/200212/31/20101
EP-A  EP FOR WILSON & ADAMS CREEKSRAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-A  EP FOR WILSON & ADAMS CREEKSRAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-A  EP FOR WILSON & ADAMS CREEKSRAD - RADIUM 226/228  9 Years01/01/200812/31/20221
EP-A  EP FOR WILSON & ADAMS CREEKSRAD - URANIUM  6 Years01/01/200812/31/20191
EP-B  EP FOR ADAMS CREEKARSENIC  Yearly01/01/200203/30/20051
WTP-A  TP FOR WILSON & ADAMS CREEKSTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20051Post Filtration TOC

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More information for this water system: SDWIS ID 4130
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