OHA Drinking Water Services
OR41
PWS ID: 93757 ---- N MARION ELEM/MIDDLE SD 15 ---- INACTIVE
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)
04/01/2008 06/30/2008 2Q2008 EP for WELL EP-A0.018
01/01/2008 03/31/2008 1Q2008 EP for WELL EP-A0.018
10/01/2007 12/31/2007 4Q2007 EP for WELL EP-A0.018
07/01/2007 09/30/2007 3Q2007 EP for WELL EP-A0.019
04/01/2007 06/30/2007 2Q2007 EP for WELL EP-A0.019
01/01/2007 03/31/2007 1Q2007 EP for WELL EP-A0.014
10/01/2006 12/31/2006 4Q2006 EP for WELL EP-A0.009
07/01/2006 09/30/2006 3Q2006 EP for WELL EP-A0.005