OHA Drinking Water Services
OR41
PWS ID: 90004 ---- ASH GROVE CEMENT DURKEE PLANT

See also: Coliform 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
DIST-A  Distribution System LEAD & COPPER  3 Years01/01/2028 - 12/31/2028   5 07/02/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELLS #1 & #2 ARSENIC notes9 Years01/01/2020 - 12/31/2028 981 1 done 05/10/2023
EP-A  EP FOR WELLS #1 & #2 IOC  9 Years01/01/2023 - 12/31/2031 2,076 1 done 05/10/2023
EP-A  EP FOR WELLS #1 & #2 NITRATE  Yearly01/01/2026 - 12/31/2026 250 1 done 01/07/2026
EP-A  EP FOR WELLS #1 & #2 NITRITE  9 Years01/01/2023 - 12/31/2031 2,076 1 done 05/10/2023
EP-A  EP FOR WELLS #1 & #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 66 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS #1 & #2 SOC  3 Years 01/01/2026 - 12/31/2028 981 1 incomplete05/10/2023
EP-A  EP FOR WELLS #1 & #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 981 1 incomplete05/10/2023

4  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/201312/31/201352 - 6-month rounds
EP-A  EP FOR WELLS #1 & #2ARSENIC  3 Years01/01/201112/31/20191
EP-A  EP FOR WELLS #1 & #2IOC  3 Years01/01/201112/31/20221
EP-A  EP FOR WELLS #1 & #2NITRATE  Quarterly01/01/200709/30/20071
EP-A  EP FOR WELLS #1 & #2NITRATE  Yearly01/01/200212/31/20061Result of 7.96 mg/l for sample of 11/21/2006, so quarterly sampling initiated. GB 12/07/2006.
EP-A  EP FOR WELLS #1 & #2NITRITE  3 Years01/01/201112/31/20221
EP-A  EP FOR WELLS #1 & #2SOC  Yearly01/01/201312/31/20151
EP-A  EP FOR WELLS #1 & #2VOLATILE ORGANICS  Yearly01/01/201312/31/20151
EP-B  EP FOR WELL #3 (QUARRY WELL)NITRATE  Yearly01/01/200212/13/20111

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