OHA Drinking Water Services
OR41
PWS ID: 00063 ---- WICKIUP 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
4Q2025 Dec 29, 2025 2DBP-01 SM-1 (93056 KELLER) 0.045 0.041 0.035 0.035
3Q2025 Sep 17, 2025 2DBP-01 SM-1 (93056 KELLER) 0.045 0.045 0.034 0.036
2Q2025 May 13, 2025 2DBP-01 SM-1 (93056 KELLER) 0.043 0.038 0.031 0.028
1Q2025 Feb 28, 2025 2DBP-01 SM-1 (93056 KELLER) 0.059 0.059 0.041 0.041
4Q2014 Nov 05, 2014 2DBP-01 SM-1 (93056 KELLER) 0.032 0.037 0.020 0.024
3Q2014 Aug 20, 2014 2DBP-01 SM-1 (93056 KELLER) 0.022 0.022 0.011 0.012
2Q2014 May 07, 2014 2DBP-01 SM-1 (93056 KELLER) 0.013 0.018 0.006 0.008
1Q2014 2DBP-01 SM-1 (93056 KELLER) 0.009 0.004
4Q2013 Nov 20, 2013 2DBP-01 SM-1 (93056 KELLER) 0.007 0.003