OHA Drinking Water Services
OR41
PWS ID: 01092 ---- USFS TILLER RANGER STATION
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
4Q2023 Oct 04, 2023 2DBP-01 #27-TOOL BARN 0.015 0.019 0.015 0.015
3Q2023 Jul 03, 2023 2DBP-01 #27-TOOL BARN 0.014 0.012 0.017 0.015
2Q2023 Apr 05, 2023 2DBP-01 #27-TOOL BARN 0.017 0.013 0.017 0.016
1Q2023 Jan 03, 2023 2DBP-01 #27-TOOL BARN 0.016 0.017 0.015 0.018
4Q2022 Oct 06, 2022 2DBP-01 #27-TOOL BARN 0.017 0.019 0.017 0.018
3Q2022 Jul 06, 2022 2DBP-01 #27-TOOL BARN 0.014 0.017 0.012 0.016
2Q2022 Apr 06, 2022 2DBP-01 #27-TOOL BARN 0.038 0.010 0.015 0.009
1Q2022 Jan 10, 2022 2DBP-01 #27-TOOL BARN 0.051 0.040 0.026 0.019
4Q2021 Nov 24, 2021 2DBP-01 #27-TOOL BARN 0.065 0.051 0.046 0.022
3Q2021 Jul 09, 2021 2DBP-01 #27-TOOL BARN 0.074 0.091 0.068 0.053
2Q2021 Apr 13, 2021 2DBP-01 #27-TOOL BARN 0.068 0.0592 0.073 0.073
1Q2021 Jan 04, 2021 2DBP-01 #27-TOOL BARN 0.054 0.0648 0.060 0.085
4Q2020 Nov 02, 2020 2DBP-01 #27-TOOL BARN 0.03565 0.0483 0.034725 0.0572



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