OHA Drinking Water Services
OR41
PWS ID: 00706 ---- RIDDLE, 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
1Q2025 Feb 27, 2025 2DBP-01 SM-1 - 916 PRUNER ROAD 0.052 0.049 0.038
1Q2025 Feb 27, 2025 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.038 0.027 0.030
4Q2024 Nov 05, 2024 2DBP-01 SM-1 - 916 PRUNER ROAD 0.054 0.058 0.038
4Q2024 Nov 05, 2024 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.038 0.020 0.027
3Q2024 Sep 17, 2024 2DBP-01 SM-1 - 916 PRUNER ROAD 0.050 0.057 0.038
3Q2024 Sep 17, 2024 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.038 0.021 0.010
2Q2024 Apr 23, 2024 2DBP-01 SM-1 - 916 PRUNER ROAD 0.046 0.038 0.038
2Q2024 Apr 23, 2024 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.038 0.038 0.021
1Q2024 Jan 17, 2024 2DBP-01 SM-1 - 916 PRUNER ROAD 0.041 0.045
1Q2024 Jan 17, 2024 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.024 0.020
4Q2023 Oct 18, 2023 2DBP-01 SM-1 - 916 PRUNER ROAD 0.040 0.041
4Q2023 Oct 18, 2023 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.031 0.031
3Q2023 Jul 12, 2023 2DBP-01 SM-1 - 916 PRUNER ROAD 0.046 0.043
3Q2023 Jul 12, 2023 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.023 0.023
2Q2023 Apr 12, 2023 2DBP-01 SM-1 - 916 PRUNER ROAD 0.042 0.039
2Q2023 Apr 12, 2023 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.031 0.029
1Q2023 Jan 11, 2023 2DBP-01 SM-1 - 916 PRUNER ROAD 0.045 0.045
1Q2023 Jan 11, 2023 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.033 0.033
4Q2022 Oct 19, 2022 2DBP-01 SM-1 - 916 PRUNER ROAD 0.043 0.052
4Q2022 Oct 19, 2022 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.034 0.025
3Q2022 Jul 13, 2022 2DBP-01 SM-1 - 916 PRUNER ROAD 0.040 0.037
3Q2022 Jul 13, 2022 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.034 0.043
2Q2022 Apr 13, 2022 2DBP-01 SM-1 - 916 PRUNER ROAD 0.047 0.040
2Q2022 Apr 13, 2022 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.026 0.034
1Q2022 Jan 12, 2022 2DBP-01 SM-1 - 916 PRUNER ROAD 0.047 0.044
1Q2022 Jan 12, 2022 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.022 0.027
4Q2021 Oct 13, 2021 2DBP-01 SM-1 - 916 PRUNER ROAD 0.051 0.052
4Q2021 Oct 13, 2021 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.015 0.012
3Q2021 Jul 14, 2021 2DBP-01 SM-1 - 916 PRUNER ROAD 0.052 0.055
3Q2021 Jul 14, 2021 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.020 0.016
2Q2021 Apr 14, 2021 2DBP-01 SM-1 - 916 PRUNER ROAD 0.049 0.045
2Q2021 Apr 14, 2021 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.022 0.023
1Q2021 Jan 13, 2021 2DBP-01 SM-1 - 916 PRUNER ROAD 0.049 0.051
1Q2021 Jan 13, 2021 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.025 0.020
4Q2020 Oct 14, 2020 2DBP-01 SM-1 - 916 PRUNER ROAD 0.051 0.051
4Q2020 Oct 14, 2020 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.028 0.029
3Q2020 Jul 08, 2020 2DBP-01 SM-1 - 916 PRUNER ROAD 0.049 0.051
3Q2020 Jul 08, 2020 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.021 0.027
2Q2020 Apr 08, 2020 2DBP-01 SM-1 - 916 PRUNER ROAD 0.048 0.046
2Q2020 Apr 08, 2020 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.023 0.025
1Q2020 Jan 08, 2020 2DBP-01 SM-1 - 916 PRUNER ROAD 0.046 0.051
1Q2020 Jan 08, 2020 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.025 0.021
4Q2019 Oct 17, 2019 2DBP-01 SM-1 - 916 PRUNER ROAD 0.047 0.044
4Q2019 Oct 17, 2019 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.026 0.024
3Q2019 Jul 10, 2019 2DBP-01 SM-1 - 916 PRUNER ROAD 0.050 0.047
3Q2019 Jul 10, 2019 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.028 0.033
2Q2019 Apr 10, 2019 2DBP-01 SM-1 - 916 PRUNER ROAD 0.054 0.045
2Q2019 Apr 10, 2019 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.026 0.031
1Q2019 Jan 09, 2019 2DBP-01 SM-1 - 916 PRUNER ROAD 0.054 0.061
1Q2019 Jan 09, 2019 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.024 0.024
4Q2018 Oct 10, 2018 2DBP-01 SM-1 - 916 PRUNER ROAD 0.049 0.054
4Q2018 Oct 10, 2018 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.023 0.017
3Q2018 Jul 11, 2018 2DBP-01 SM-1 - 916 PRUNER ROAD 0.047 0.051
3Q2018 Jul 11, 2018 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.029 0.027
2Q2018 Apr 11, 2018 2DBP-01 SM-1 - 916 PRUNER ROAD 0.041 0.037
2Q2018 Apr 11, 2018 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.029 0.031
1Q2018 Jan 10, 2018 2DBP-01 SM-1 - 916 PRUNER ROAD 0.041 0.044
1Q2018 Jan 10, 2018 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.028 0.029
4Q2017 Oct 11, 2017 2DBP-01 SM-1 - 916 PRUNER ROAD 0.039 0.045
4Q2017 Oct 11, 2017 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.029 0.029
3Q2017 Jul 13, 2017 2DBP-01 SM-1 - 916 PRUNER ROAD 0.041 0.037
3Q2017 Jul 13, 2017 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.033 0.027
2Q2017 Apr 12, 2017 2DBP-01 SM-1 - 916 PRUNER ROAD 0.041 0.037
2Q2017 Apr 12, 2017 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.029 0.035
1Q2017 Jan 25, 2017 2DBP-01 SM-1 - 916 PRUNER ROAD 0.043 0.042
1Q2017 Jan 25, 2017 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.030 0.031
4Q2016 Oct 12, 2016 2DBP-01 SM-1 - 916 PRUNER ROAD 0.043 0.050
4Q2016 Oct 21, 2016 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.021 0.033
3Q2016 Jul 13, 2016 2DBP-01 SM-1 - 916 PRUNER ROAD 0.036 0.040
3Q2016 Jul 13, 2016 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.015 0.011
2Q2016 Apr 20, 2016 2DBP-01 SM-1 - 916 PRUNER ROAD 0.043 0.033
2Q2016 Apr 20, 2016 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.020 0.021
1Q2016 Jan 14, 2016 2DBP-01 SM-1 - 916 PRUNER ROAD 0.043 0.041
1Q2016 Jan 14, 2016 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.026 0.018
4Q2015 Oct 14, 2015 2DBP-01 SM-1 - 916 PRUNER ROAD 0.045 0.044
4Q2015 Oct 14, 2015 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.028 0.033
3Q2015 Jul 10, 2015 2DBP-01 SM-1 - 916 PRUNER ROAD 0.052 0.056
3Q2015 Jul 10, 2015 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.027 0.028
2Q2015 Apr 08, 2015 2DBP-01 SM-1 - 916 PRUNER ROAD 0.045 0.043
2Q2015 Apr 08, 2015 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.023 0.033
1Q2015 Jan 08, 2015 2DBP-01 SM-1 - 916 PRUNER ROAD 0.044 0.045
1Q2015 Jan 08, 2015 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.012 0.012
4Q2014 Oct 15, 2014 2DBP-01 SM-1 - 916 PRUNER ROAD 0.042 0.049
4Q2014 Oct 15, 2014 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.016 0.016
3Q2014 Jul 09, 2014 2DBP-01 SM-1 - 916 PRUNER ROAD 0.038 0.038
3Q2014 Jul 09, 2014 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.021 0.014
2Q2014 Apr 10, 2014 2DBP-01 SM-1 - 916 PRUNER ROAD 0.027 0.035
2Q2014 Apr 10, 2014 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.017 0.019
1Q2014 Jan 08, 2014 2DBP-01 SM-1 - 916 PRUNER ROAD 0.019
1Q2014 Jan 08, 2014 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.016
4Q2013 Oct 10, 2013 2DBP-01 SM-1 - 916 PRUNER ROAD 0.011
4Q2013 Oct 31, 2013 2DBP-02 SM-2 - 855 SHOESTRING ROAD 0.010



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