OHA Drinking Water Services
OR41
PWS ID: 93718 ---- NINETY-ONE ELEM SD 91
Arsenic Running Annual Averages

Results shown are only for quarterly or monthly monitoring schedules.
Averages are subject to change as new data is taken into consideration.

Arsenic MCL = 0.010 mg/L. MCL exceedances are indicated with red text.

MP Begin MP End MP Name Location Sample
Point		 Arsenic RAA
(mg/L)
10/01/2016 12/31/2016 4Q2016 EP FOR WELLS EP-A0.004
07/01/2016 09/30/2016 3Q2016 EP FOR WELLS EP-A0.004
04/01/2016 06/30/2016 2Q2016 EP FOR WELLS EP-A0.005
01/01/2016 03/31/2016 1Q2016 EP FOR WELLS EP-A0.005
10/01/2015 12/31/2015 4Q2015 EP FOR WELLS EP-A0.006
07/01/2015 09/30/2015 3Q2015 EP FOR WELLS EP-A0.006
04/01/2015 06/30/2015 2Q2015 EP FOR WELLS EP-A0.005
01/01/2015 03/31/2015 1Q2015 EP FOR WELLS EP-A0.006
10/01/2014 12/31/2014 4Q2014 EP FOR WELLS EP-A0.007
07/01/2014 09/30/2014 3Q2014 EP FOR WELLS EP-A0.007
04/01/2014 06/30/2014 2Q2014 EP FOR WELLS EP-A0.007
01/01/2014 03/31/2014 1Q2014 EP FOR WELLS EP-A0.006
10/01/2013 12/31/2013 4Q2013 EP FOR WELLS EP-A0.007
07/01/2013 09/30/2013 3Q2013 EP FOR WELLS EP-A0.007
04/01/2013 06/30/2013 2Q2013 EP FOR WELLS EP-A0.007
01/01/2013 03/31/2013 1Q2013 EP FOR WELLS EP-A0.007
10/01/2012 12/31/2012 4Q2012 EP FOR WELLS EP-A0.007
07/01/2012 09/30/2012 3Q2012 EP FOR WELLS EP-A0.008
04/01/2012 06/30/2012 2Q2012 EP FOR WELLS EP-A0.010
01/01/2012 03/31/2012 1Q2012 EP FOR WELLS EP-A0.013
10/01/2011 12/31/2011 4Q2011 EP FOR WELLS EP-A0.015
07/01/2011 09/30/2011 3Q2011 EP FOR WELLS EP-A0.017
04/01/2011 06/30/2011 2Q2011 EP FOR WELLS EP-A0.017
01/01/2011 03/31/2011 1Q2011 EP FOR WELLS EP-A0.017
10/01/2010 12/31/2010 4Q2010 EP FOR WELLS EP-A0.017
07/01/2010 09/30/2010 3Q2010 EP FOR WELLS EP-A0.009
04/01/2010 06/30/2010 2Q2010 EP FOR WELLS EP-A0.011
01/01/2010 03/31/2010 1Q2010 EP FOR WELLS EP-A0.008



More information for this water system: SDWIS ID 1422
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