OHA Drinking Water Services
OR41
PWS ID: 01172 ---- WESTERN HILLS MH ESTATES

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 notesYearly 01/01/2026 - 12/31/2026 319 5 incomplete06/05/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2026 - 12/31/2026   1incomplete09/14/2023
 Seasonal sampling period:  09/01  thru  09/30
EP-D  EP FOR WELLS #5 & #6 ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,241 1 incomplete06/26/2019
EP-D  EP FOR WELLS #5 & #6 IOC notes9 Years 01/01/2020 - 12/31/2028 1,050 1 incomplete06/26/2019
EP-D  EP FOR WELLS #5 & #6 NITRATE  Yearly 01/01/2026 - 12/31/2026 319 1 incomplete02/11/2025
EP-D  EP FOR WELLS #5 & #6 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,050 1 incomplete06/26/2019
EP-D  EP FOR WELLS #5 & #6 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,241 1 incomplete09/23/2019
EP-D  EP FOR WELLS #5 & #6 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,241 1 incomplete09/23/2019
EP-D  EP FOR WELLS #5 & #6 RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 1,050 1 incomplete09/23/2019
EP-D  EP FOR WELLS #5 & #6 SOC  3 Years 01/01/2026 - 12/31/2028 1,050 1 incomplete06/20/2022
EP-D  EP FOR WELLS #5 & #6 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,050 1 incomplete04/23/2025

5  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  3 Years01/01/200512/31/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20205Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/202206/30/202310
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  3 Years01/01/201412/31/20221Sample in September
EP-A  EP FOR WELLS #1 & #2ARSENIC  3 Years01/01/200203/05/20131
EP-A  EP FOR WELLS #1 & #2IOC  9 Years01/01/200203/05/20131Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELLS #1 & #2NITRATE  Yearly01/01/200203/05/20131
EP-A  EP FOR WELLS #1 & #2NITRITE  9 Years01/01/200203/05/20131Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELLS #1 & #2RAD - GROSS ALPHA  6 Years01/01/200803/05/20131
EP-A  EP FOR WELLS #1 & #2RAD - RADIUM 226/228  9 Years01/01/200803/05/20131
EP-A  EP FOR WELLS #1 & #2RAD - URANIUM  9 Years01/01/200803/05/20131
EP-A  EP FOR WELLS #1 & #2SOC  3 Years01/01/200203/05/20131
EP-A  EP FOR WELLS #1 & #2VOLATILE ORGANICS  3 Years01/01/200203/05/20131
EP-B  EP FOR WELL #4ARSENIC  3 Years01/01/200207/21/20091
EP-B  EP FOR WELL #4IOC  9 Years01/01/200207/21/20091Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR WELL #4NITRATE  Yearly01/01/200207/21/20091
EP-B  EP FOR WELL #4NITRITE  9 Years01/01/200207/21/20091Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR WELL #4SOC  3 Years01/01/200207/21/20091
EP-B  EP FOR WELL #4VOLATILE ORGANICS  3 Years01/01/200207/21/20091
EP-D  EP FOR WELLS #5 & #6ARSENIC  3 Years01/01/200212/31/20161
EP-D  EP FOR WELLS #5 & #6RAD - URANIUM  6 Years01/01/200812/31/20191

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