OHA Drinking Water Services
OR41
PWS ID: 00624 ---- PHILOMATH PUBLIC WORKS
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
3Q2014 Aug 18, 2014 2DBP-01 SM-1 0.028 0.029 0.017 0.019
3Q2014 Aug 18, 2014 2DBP-02 SM-3 0.029 0.026 0.017 0.018
2Q2014 May 19, 2014 2DBP-01 SM-1 0.018 0.022 0.011 0.014
2Q2014 May 19, 2014 2DBP-02 SM-3 0.021 0.026 0.012 0.014
1Q2014 Feb 19, 2014 2DBP-01 SM-1 0.014 0.009
1Q2014 Feb 19, 2014 2DBP-02 SM-3 0.016 0.009
4Q2013 Nov 18, 2013 2DBP-01 SM-1 0.010 0.005
4Q2013 Nov 18, 2013 2DBP-02 SM-3 0.011 0.005