OHA Drinking Water Services
OR41
PWS ID: 06270 ---- PRATUM CO-OP ---- 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)
01/01/2019 03/31/2019 1Q2019 EP FOR WELL EP-A0.003
10/01/2018 12/31/2018 4Q2018 EP FOR WELL EP-A0.000
07/01/2018 09/30/2018 3Q2018 EP FOR WELL EP-A0.000
04/01/2018 06/30/2018 2Q2018 EP FOR WELL EP-A0.000