OHA Drinking Water Services
OR41
PWS ID: 00361 ---- LUSTED 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
3Q2025 Aug 19, 2025 2DBP-01 28900 WK ANDERSON RD 0.027 0.030 0.034 0.026
2Q2025 Jun 25, 2025 2DBP-01 28900 WK ANDERSON RD 0.028 0.026 0.036 0.035
1Q2025 Jan 27, 2025 2DBP-01 28900 WK ANDERSON RD 0.028 0.027 0.036 0.037
4Q2024 Nov 07, 2024 2DBP-01 28900 WK ANDERSON RD 0.028 0.027 0.034 0.041
3Q2024 Aug 08, 2024 2DBP-01 28900 WK ANDERSON RD 0.024 0.032 0.023 0.028
2Q2024 Apr 15, 2024 2DBP-01 28900 WK ANDERSON RD 0.021 0.022 0.021 0.023
1Q2024 Feb 08, 2024 2DBP-01 28900 WK ANDERSON RD 0.019 0.020 0.018 0.020
4Q2023 Oct 12, 2023 2DBP-01 28900 WK ANDERSON RD 0.020 0.015 0.018 0.014
3Q2023 Aug 28, 2023 2DBP-01 28900 WK ANDERSON RD 0.023 0.024 0.020 0.021
2Q2023 May 11, 2023 2DBP-01 28900 WK ANDERSON RD 0.024 0.022 0.024 0.019
1Q2023 Mar 13, 2023 2DBP-01 28900 WK ANDERSON RD 0.027 0.025 0.027 0.026
4Q2022 Oct 27, 2022 2DBP-01 28900 WK ANDERSON RD 0.026 0.025 0.027 0.025
3Q2022 Jul 28, 2022 2DBP-01 28900 WK ANDERSON RD 0.028 0.028 0.028 0.031
2Q2022 Jun 09, 2022 2DBP-01 28900 WK ANDERSON RD 0.028 0.029 0.023 0.027
1Q2022 Mar 07, 2022 2DBP-01 28900 WK ANDERSON RD 0.026 0.026 0.020 0.022
4Q2021 Oct 18, 2021 2DBP-01 28900 WK ANDERSON RD 0.027 0.027 0.018 0.020
3Q2021 Aug 05, 2021 2DBP-01 28900 WK ANDERSON RD 0.030 0.027 0.022 0.015
2Q2021 May 24, 2021 2DBP-01 28900 WK ANDERSON RD 0.030 0.029 0.019 0.023
1Q2021 Mar 22, 2021 2DBP-01 28900 WK ANDERSON RD 0.032 0.031 0.022 0.018
4Q2020 Nov 20, 2020 2DBP-01 28900 WK ANDERSON RD 0.033 0.035 0.025 0.028
3Q2020 Jul 20, 2020 2DBP-01 28900 WK ANDERSON RD 0.031 0.030 0.020 0.016
2Q2020 May 27, 2020 2DBP-01 28900 WK ANDERSON RD 0.031 0.031 0.024 0.027
1Q2020 Feb 27, 2020 2DBP-01 28900 WK ANDERSON RD 0.034 0.032 0.024 0.023
4Q2019 Dec 12, 2019 2DBP-01 28900 WK ANDERSON RD 0.032 0.035 0.024 0.022
3Q2019 Aug 22, 2019 2DBP-01 28900 WK ANDERSON RD 0.029 0.031 0.024 0.025
2Q2019 May 23, 2019 2DBP-01 28900 WK ANDERSON RD 0.027 0.032 0.023 0.026
1Q2019 Feb 28, 2019 2DBP-01 28900 WK ANDERSON RD 0.024 0.023 0.022 0.023
4Q2018 Nov 05, 2018 2DBP-01 28900 WK ANDERSON RD 0.025 0.024 0.022 0.020
3Q2018 Aug 31, 2018 2DBP-01 28900 WK ANDERSON RD 0.033 0.025 0.029 0.022
2Q2018 May 21, 2018 2DBP-01 28900 WK ANDERSON RD 0.033 0.033 0.032 0.030
1Q2018 Feb 23, 2018 2DBP-01 28900 WK ANDERSON RD 0.035 0.032 0.034 0.033
4Q2017 Nov 10, 2017 2DBP-01 28900 WK ANDERSON RD 0.040 0.044 0.037 0.040
3Q2017 Aug 28, 2017 2DBP-01 28900 WK ANDERSON RD 0.026 0.026 0.030 0.030
1Q2014 Feb 26, 2014 2DBP-01 28900 WK ANDERSON RD 0.023 0.029 0.030 0.031
4Q2013 Nov 25, 2013 2DBP-01 28900 WK ANDERSON RD 0.021 0.026 0.030 0.031
3Q2013 Aug 20, 2013 2DBP-01 28900 WK ANDERSON RD 0.021 0.015 0.032 0.028
2Q2013 May 22, 2013 2DBP-01 28900 WK ANDERSON RD 0.022 0.020 0.033 0.031
1Q2013 2DBP-01 28900 WK ANDERSON RD 0.031 0.034
4Q2012 Nov 14, 2012 2DBP-01 28900 WK ANDERSON RD 0.023 0.033 0.026 0.036
3Q2012 Aug 22, 2012 2DBP-01 28900 WK ANDERSON RD 0.013 0.015
2Q2012 May 29, 2012 2DBP-01 28900 WK ANDERSON RD 0.006 0.007



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