OHA Drinking Water Services
OR41
PWS ID: 01149 ---- PERRYDALE DOMESTIC WTR ASSN
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)
10/01/2019 12/31/2019 4Q2019 EP FOR WELL #L1 & RADLEY WELL EP-B0.002
07/01/2019 09/30/2019 3Q2019 EP FOR WELL #L1 & RADLEY WELL EP-B0.002
04/01/2019 06/30/2019 2Q2019 EP FOR WELL #L1 & RADLEY WELL EP-B0.002
01/01/2019 03/31/2019 1Q2019 EP FOR WELL #L1 & RADLEY WELL EP-B0.001
01/01/2013 03/31/2013 1Q2013 EP FOR WALKER WELL #W1 EP-E0.003
10/01/2012 12/31/2012 4Q2012 EP FOR WALKER WELL #W1 EP-E0.001
07/01/2012 09/30/2012 3Q2012 EP FOR WALKER WELL #W1 EP-E0.000