OHA Drinking Water Services
OR41
PWS ID: 00706 ---- RIDDLE, 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 notesQuarterly04/01/2025 - 06/30/2025 16 1 done 05/20/2025
DIST-A  Distribution System ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,296 1 done 09/26/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System DBP2 HAA5 ONLY notesQuarterly04/01/2025 - 06/30/2025 16 1 done 05/15/2025
DIST-A  Distribution System DBP2 TTHM ONLY notesQuarterly04/01/2025 - 06/30/2025 16 1 done 05/15/2025
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   10incomplete07/28/2022
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP FOR COW CREEK ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,296 1 incomplete02/17/2011
EP-A  EP FOR COW CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 1,296 1 incomplete02/17/2011
EP-A  EP FOR COW CREEK NITRATE  Yearly01/01/2025 - 12/31/2025 200 1 done 01/29/2025
EP-A  EP FOR COW CREEK NITRITE notes9 Years01/01/2020 - 12/31/2028 1,296 1 done 09/21/2022
EP-A  EP FOR COW CREEK RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 200 1 done 01/29/2025
EP-A  EP FOR COW CREEK RAD - RADIUM 226/228 9 Years01/01/2020 - 12/31/2028 1,296 1 done 01/31/2025
EP-A  EP FOR COW CREEK RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,391 1 incomplete05/18/2022
EP-A  EP FOR COW CREEK SOC  3 Years01/01/2023 - 12/31/2025 200 1 done 01/29/2025
EP-A  EP FOR COW CREEK VOLATILE ORGANICS  Yearly01/01/2025 - 12/31/2025 200 1 done 02/27/2025
WTP-A  TP FOR COW CREEKTOTAL ORGANIC CARBONnotesQuarterly04/01/2025 - 06/30/2025 16 1 done 05/20/2025

17  secs
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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  Monthly01/01/200412/31/20041Raw and filtered TOC and alkalinity
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200409/30/20131Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200212/31/200410Sample Between June 1st and Sept 30th
EP-A  EP FOR COW CREEKARSENIC  Yearly01/01/200212/31/20091
EP-A  EP FOR COW CREEKRAD - RADIUM 226/228  6 Years01/01/200812/31/20191Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR COW CREEKRAD - URANIUM  6 Years01/01/200812/31/20131Schedule Reflects Monitoring Reduction Granted
SRC-AA  COW CREEKCYANOTOXINS  2 Weeks07/15/201801/24/20191
WTP-A  TP FOR COW CREEKTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20041Post Filtration TOC

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More information for this water system: SDWIS ID 3988
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