OHA Drinking Water Services
OR41
PWS ID: 00869 ---- THE DALLES, CITY OF
System Information     Schedule Counts
Status:  Active
System Type:  Community
Population Served:  13,010		 Active:  41     Show Only Active
Inactive:  0
Expired:  22

Routine Sampling Schedules For Chemicals
Facility
ID		 Name Status Test Group Samples
Required		    Sampling
Interval		 Start End    Notes
CH-A COMMON HEADER FOR WTP-AATOC & ALKALINITY1  Quarterly04/01/2025OpenRaw and filtered TOC and alkalinity
DIST-A Distribution SystemAASBESTOS, DIST1  9 Years01/01/2011OpenSchedule Reflects Monitoring Reduction Granted
DIST-A Distribution SystemAHAA5 & TTHM2  Quarterly04/01/2025OpenSampling in March, June, September, and December
DIST-A Distribution SystemALEAD & COPPER30  3 Years01/01/2002OpenSample Between June 1st and Sept 30th
EP-A EP FOR SOUTH FORK MILL CREEKAARSENIC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR SOUTH FORK MILL CREEKAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR SOUTH FORK MILL CREEKANITRATE1  Yearly01/01/2002Open
EP-A EP FOR SOUTH FORK MILL CREEKANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR SOUTH FORK MILL CREEKARAD - GROSS ALPHA1  9 Years01/01/2008Open
EP-A EP FOR SOUTH FORK MILL CREEKARAD - RADIUM 226/2281  9 Years01/01/2014Open
EP-A EP FOR SOUTH FORK MILL CREEKARAD - URANIUM1  9 Years01/01/2014Open
EP-A EP FOR SOUTH FORK MILL CREEKASOC2  3 Years01/01/2002Open2 Consec. QT Samples
EP-A EP FOR SOUTH FORK MILL CREEKAVOLATILE ORGANICS1  Yearly01/01/2011Open
EP-B EP FOR LONE PINE WELLAARSENIC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR LONE PINE WELLAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR LONE PINE WELLANITRATE1  Yearly01/01/2019Open
EP-B EP FOR LONE PINE WELLANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR LONE PINE WELLARAD - GROSS ALPHA1  9 Years01/01/2008Open
EP-B EP FOR LONE PINE WELLARAD - RADIUM 226/2281  9 Years01/01/2014Open
EP-B EP FOR LONE PINE WELLARAD - URANIUM1  9 Years01/01/2014Open
EP-B EP FOR LONE PINE WELLASOC2  3 Years01/01/2020Open
EP-B EP FOR LONE PINE WELLAVOLATILE ORGANICS1  3 Years01/01/2020Open
EP-C EP FOR JORDAN ST WELLAARSENIC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-C EP FOR JORDAN ST WELLAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-C EP FOR JORDAN ST WELLANITRATE1  Yearly01/01/2002Open
EP-C EP FOR JORDAN ST WELLANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-C EP FOR JORDAN ST WELLARAD - GROSS ALPHA1  9 Years01/01/2014Open
EP-C EP FOR JORDAN ST WELLARAD - RADIUM 226/2281  9 Years01/01/2014Open
EP-C EP FOR JORDAN ST WELLARAD - URANIUM1  9 Years01/01/2014Open
EP-C EP FOR JORDAN ST WELLASOC2  3 Years01/01/2002Open2 Consec. QT Samples
EP-C EP FOR JORDAN ST WELLAVOLATILE ORGANICS1  3 Years01/01/2002Open
EP-D EP FOR MARKS WELLAARSENIC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-D EP FOR MARKS WELLAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-D EP FOR MARKS WELLANITRATE1  Yearly01/01/2002Open
EP-D EP FOR MARKS WELLANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-D EP FOR MARKS WELLARAD - GROSS ALPHA1  9 Years01/01/2008Open
EP-D EP FOR MARKS WELLARAD - RADIUM 226/2281  9 Years01/01/2014Open
EP-D EP FOR MARKS WELLARAD - URANIUM1  9 Years01/01/2014Open
EP-D EP FOR MARKS WELLASOC2  3 Years01/01/2002Open2 Consec. QT Samples
EP-D EP FOR MARKS WELLAVOLATILE ORGANICS1  3 Years01/01/2002Open
WTP-A TP FOR SOUTH FORK MILL CREEKATOTAL ORGANIC CARBON1  Quarterly04/01/2025OpenPost Filtration TOC
Expired Schedules
CH-ACOMMON HEADER FOR WTP-AATOC & ALKALINITY1  Monthly01/01/200203/31/2025Raw and filtered TOC and alkalinity
DIST-ADistribution SystemAHAA5 & TTHM4  Quarterly01/01/200209/30/2013Schedule Reflects Minimal Use of Wells.
DIST-ADistribution SystemASTAGE 2 DBP4  Quarterly10/01/201303/31/2025Sample in Dec, Mar, June, and Sept
EP-AEP FOR SOUTH FORK MILL CREEKAARSENIC1  Yearly01/01/200212/31/2016
EP-AEP FOR SOUTH FORK MILL CREEKARAD - RADIUM 226/2281  6 Years01/01/200812/31/2013
EP-AEP FOR SOUTH FORK MILL CREEKARAD - URANIUM1  6 Years01/01/200812/31/2013
EP-AEP FOR SOUTH FORK MILL CREEKAVOLATILE ORGANICS1  Yearly01/01/200212/31/2010
EP-AEP FOR SOUTH FORK MILL CREEKAXYLENES, TOTAL 1  Quarterly10/01/200906/30/2010
EP-BEP FOR LONE PINE WELLAARSENIC1  3 Years01/01/200212/31/2016
EP-BEP FOR LONE PINE WELLANITRATE1  Yearly01/01/200211/13/2017
EP-BEP FOR LONE PINE WELLARAD - RADIUM 226/2281  6 Years01/01/200812/31/2013
EP-BEP FOR LONE PINE WELLARAD - URANIUM1  6 Years01/01/200812/31/2013
EP-BEP FOR LONE PINE WELLASOC2  3 Years01/01/200211/13/20172 Consec. QT Samples
EP-BEP FOR LONE PINE WELLAVOLATILE ORGANICS1  3 Years01/01/200211/13/2017
EP-CEP FOR JORDAN ST WELLAARSENIC1  3 Years01/01/200212/31/2016
EP-CEP FOR JORDAN ST WELLARAD - GROSS ALPHA1  6 Years01/01/200812/31/2013
EP-CEP FOR JORDAN ST WELLARAD - RADIUM 226/2281  6 Years01/01/200812/31/2013
EP-CEP FOR JORDAN ST WELLARAD - URANIUM1  6 Years01/01/200812/31/2013
EP-DEP FOR MARKS WELLAARSENIC1  3 Years01/01/200212/31/2016
EP-DEP FOR MARKS WELLARAD - RADIUM 226/2281  6 Years01/01/200812/31/2013
EP-DEP FOR MARKS WELLARAD - URANIUM1  6 Years01/01/200812/31/2013
WTP-ATP FOR SOUTH FORK MILL CREEKATOTAL ORGANIC CARBON1  Monthly01/01/200203/31/2025Post Filtration TOC

More information for this water system: SDWIS ID 3916
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