OHA Drinking Water Services
OR41
PWS ID: 00670 ---- PORT ORFORD, CITY OF
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
2Q2025 May 06, 2025 2DBP-01 ARIZONA STREET 0.053 0.047 0.013 0.011
1Q2025 Feb 05, 2025 2DBP-01 ARIZONA STREET 0.058 0.054 0.022 0.016
4Q2024 Nov 05, 2024 2DBP-01 ARIZONA STREET 0.065 0.071
3Q2024 Aug 07, 2024 2DBP-01 ARIZONA STREET 0.061 0.057 0.028 0.021
2Q2024 May 07, 2024 2DBP-01 ARIZONA STREET 0.060 0.060 0.028 0.033
1Q2024 Feb 07, 2024 2DBP-01 ARIZONA STREET 0.057 0.063 0.023 0.025
4Q2023 Nov 13, 2023 2DBP-01 ARIZONA STREET 0.052 0.060 0.023 0.028
3Q2023 Aug 08, 2023 2DBP-01 ARIZONA STREET 0.048 0.048 0.019 0.017
2Q2023 May 09, 2023 2DBP-01 ARIZONA STREET 0.052 0.045 0.021 0.019
1Q2023 Feb 07, 2023 2DBP-01 ARIZONA STREET 0.061 0.053 0.028 0.023
4Q2022 Nov 15, 2022 2DBP-01 ARIZONA STREET 0.062 0.064 0.027 0.029
3Q2022 Aug 09, 2022 2DBP-01 ARIZONA STREET 0.065 0.066 0.030 0.027
2Q2022 May 11, 2022 2DBP-01 ARIZONA STREET 0.062 0.065 0.032 0.035
1Q2022 Feb 01, 2022 2DBP-01 ARIZONA STREET 0.054 0.055 0.026 0.025
4Q2021 Oct 13, 2021 2DBP-01 ARIZONA STREET 0.053 0.059 0.030 0.030
3Q2021 Aug 10, 2021 2DBP-01 ARIZONA STREET 0.055 0.052 0.028 0.029
2Q2021 May 11, 2021 2DBP-01 ARIZONA STREET 0.054 0.050 0.026 0.026
1Q2021 Mar 09, 2021 2DBP-01 ARIZONA STREET 0.058 0.055 0.027 0.030
4Q2020 Nov 17, 2020 2DBP-01 ARIZONA STREET 0.060 0.065 0.025 0.025
3Q2020 Aug 11, 2020 2DBP-01 ARIZONA STREET 0.055 0.057 0.022 0.024
2Q2020 May 12, 2020 2DBP-01 ARIZONA STREET 0.057 0.054 0.019 0.023
1Q2020 Feb 11, 2020 2DBP-01 ARIZONA STREET 0.050 0.056 0.014 0.021
4Q2019 Nov 05, 2019 2DBP-01 ARIZONA STREET 0.052 0.051 0.015 0.011
3Q2019 Aug 13, 2019 2DBP-01 ARIZONA STREET 0.052 0.055 0.014 0.013
2Q2019 May 07, 2019 2DBP-01 ARIZONA STREET 0.045 0.044 0.013 0.015
1Q2019 Feb 27, 2019 2DBP-01 ARIZONA STREET 0.047 0.052 0.015 0.021
4Q2018 Nov 06, 2018 2DBP-01 ARIZONA STREET 0.044 0.046 0.011 0.011
3Q2018 Aug 08, 2018 2DBP-01 ARIZONA STREET 0.047 0.039 0.013 0.009
2Q2018 May 10, 2018 2DBP-01 ARIZONA STREET 0.051 0.048 0.015 0.012
1Q2018 Feb 06, 2018 2DBP-01 ARIZONA STREET 0.057 0.053 0.020 0.018
4Q2017 Nov 07, 2017 2DBP-01 ARIZONA STREET 0.068 0.062 0.032 0.022
3Q2017 Aug 08, 2017 2DBP-01 ARIZONA STREET 0.073 0.064 0.034 0.031
2Q2017 May 11, 2017 2DBP-01 ARIZONA STREET 0.081 0.076 0.037 0.036
1Q2017 Feb 07, 2017 2DBP-01 ARIZONA STREET 0.082 0.088 0.038 0.046
4Q2016 Nov 14, 2016 2DBP-01 ARIZONA STREET 0.075 0.080 0.034 0.031
3Q2016 Aug 09, 2016 2DBP-01 ARIZONA STREET 0.076 0.074 0.040 0.034
2Q2016 May 04, 2016 2DBP-01 ARIZONA STREET 0.069 0.073 0.041 0.040
1Q2016 Feb 09, 2016 2DBP-01 ARIZONA STREET 0.067 0.068 0.039 0.044
4Q2015 Nov 16, 2015 2DBP-01 ARIZONA STREET 0.079 0.072 0.055 0.041
3Q2015 Aug 05, 2015 2DBP-01 ARIZONA STREET 0.070 0.069 0.051 0.051
2Q2015 May 06, 2015 2DBP-01 ARIZONA STREET 0.074 0.072 0.051 0.048
1Q2015 Feb 09, 2015 2DBP-01 ARIZONA STREET 0.073 0.088 0.054 0.073
4Q2014 Nov 05, 2014 2DBP-01 ARIZONA STREET 0.060 0.058 0.052 0.035
3Q2014 Aug 06, 2014 2DBP-01 ARIZONA STREET 0.065 0.063 0.053 0.052
2Q2014 May 06, 2014 2DBP-01 ARIZONA STREET 0.048 0.061 0.044 0.053
1Q2014 Feb 10, 2014 2DBP-01 ARIZONA STREET 0.035 0.035
4Q2013 Nov 13, 2013 2DBP-01 ARIZONA STREET 0.019 0.010



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