OHA Drinking Water Services
OR41
PWS ID: 01549 ---- ELK CITY WATER DISTRICT
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
4Q2021 Oct 08, 2021 2DBP-01 3333 EDWINA STREET 0.023 0.017
4Q2021 Oct 08, 2021 2DBP-02 BOISE CASCADE 0.022 0.016
3Q2021 Aug 05, 2021 2DBP-01 3333 EDWINA STREET 0.015 0.011
3Q2021 Aug 05, 2021 2DBP-02 BOISE CASCADE 0.023 0.013