OHA Drinking Water Services
OR41
PWS ID: 00970 ---- NESKOWIN REG WATER DIST
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
4Q2024 Dec 02, 2024 2DBP-01 VIKING ESTATES 0.030 0.034 0.015 0.016
3Q2024 Aug 05, 2024 2DBP-01 VIKING ESTATES 0.043 0.025 0.016 0.012
2Q2024 Jun 03, 2024 2DBP-01 VIKING ESTATES 0.043 0.042 0.016 0.016
1Q2024 Mar 04, 2024 2DBP-01 VIKING ESTATES 0.044 0.045 0.017 0.019
4Q2023 Nov 06, 2023 2DBP-01 VIKING ESTATES 0.043 0.062 0.015 0.019
3Q2023 Jul 10, 2023 2DBP-01 VIKING ESTATES 0.029 0.024 0.017 0.010
2Q2023 Jun 14, 2023 2DBP-01 VIKING ESTATES 0.033 0.029 0.024 0.017
1Q2023 Mar 14, 2023 2DBP-01 VIKING ESTATES 0.034 0.032 0.026 0.024
4Q2022 Dec 07, 2022 2DBP-01 VIKING ESTATES 0.036 0.040 0.026 0.033
3Q2022 Sep 14, 2022 2DBP-01 VIKING ESTATES 0.035 0.034 0.020 0.025
2Q2022 Jun 08, 2022 2DBP-01 VIKING ESTATES 0.034 0.033 0.016 0.015
1Q2022 Feb 09, 2022 2DBP-01 VIKING ESTATES 0.032 0.034 0.014 0.013
4Q2021 Dec 15, 2021 2DBP-01 VIKING ESTATES 0.035 0.035 0.019 0.015
3Q2021 Sep 01, 2021 2DBP-01 VIKING ESTATES 0.046 0.033 0.030 0.020
2Q2021 Apr 14, 2021 2DBP-01 VIKING ESTATES 0.050 0.043 0.034 0.028
1Q2021 Feb 03, 2021 2DBP-01 VIKING ESTATES 0.062 0.057 0.043 0.042
4Q2020 Dec 02, 2020 2DBP-01 VIKING ESTATES 0.068 0.075 0.047 0.052
3Q2020 2DBP-01 VIKING ESTATES 0.065 0.042
2Q2020 Jun 03, 2020 2DBP-01 VIKING ESTATES 0.065 0.064 0.042 0.041
1Q2020 Feb 05, 2020 2DBP-01 VIKING ESTATES 0.068 0.066 0.044 0.043
4Q2019 Dec 02, 2019 2DBP-01 VIKING ESTATES 0.075 0.075 0.045 0.045



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