OHA Drinking Water Services
OR41
PWS ID: 95537 ---- US SILICA
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)
04/01/2016 06/30/2016 2Q2016 EP FOR WELL EP-A0.010
01/01/2016 03/31/2016 1Q2016 EP FOR WELL EP-A0.010



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