OHA Drinking Water Services
OR41
PWS ID: 00576 ---- NORTH PLAINS WATER DEPARTMENT
LRAAs and OELs

LRAA = Locational running annual average; OEL = Operational evaluation level. Learn about OELs here.
Averages are subject to change as new data is taken into consideration.

TTHM MCL = 0.080 mg/L,  HAA5 MCL = 0.060 mg/L.  MCL exceedances are indicated with red text.

Monitoring
Period		 Last
Sample		 Sample
Point		 Location TTHM
LRAA		 TTHM
OEL		 HAA5
LRAA		 HAA5
OEL
4Q2012 Dec 03, 2012 2DBP-01 10680 NW 289TH PL (HAA5) 0.025 0.033 0.017 0.025
4Q2012 Dec 03, 2012 2DBP-02 31360 NW PACIFIC ST (TTHM) 0.032 0.045 0.019 0.028
3Q2012 Sep 05, 2012 2DBP-01 10680 NW 289TH PL (HAA5) 0.017 0.010
3Q2012 Sep 05, 2012 2DBP-02 31360 NW PACIFIC ST (TTHM) 0.018 0.010
2Q2012 Jun 04, 2012 2DBP-01 10680 NW 289TH PL (HAA5) 0.011 0.006
2Q2012 Jun 04, 2012 2DBP-02 31360 NW PACIFIC ST (TTHM) 0.008 0.006