OHA Drinking Water Services
OR41
PWS ID: 00660 ---- WEST SLOPE 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
3Q2024 Aug 07, 2024 2DBP-01 SYLVAN COURT 0.029 0.032 0.026 0.027
3Q2024 Aug 07, 2024 2DBP-02 FAIRWAY DR 0.030 0.032 0.026 0.027
3Q2024 Aug 07, 2024 2DBP-03 KENNEDY STREET 0.029 0.032 0.024 0.026
3Q2024 Aug 07, 2024 2DBP-04 SW POPLAR LANE 0.028 0.031 0.027 0.028
2Q2024 May 08, 2024 2DBP-01 SYLVAN COURT 0.028 0.028 0.025 0.026
2Q2024 May 08, 2024 2DBP-02 FAIRWAY DR 0.028 0.028 0.025 0.026
2Q2024 May 08, 2024 2DBP-03 KENNEDY STREET 0.028 0.028 0.022 0.023
2Q2024 May 08, 2024 2DBP-04 SW POPLAR LANE 0.027 0.027 0.026 0.027
1Q2024 Feb 07, 2024 2DBP-01 SYLVAN COURT 0.026 0.026 0.024 0.024
1Q2024 Feb 07, 2024 2DBP-02 FAIRWAY DR 0.026 0.027 0.024 0.024
1Q2024 Feb 07, 2024 2DBP-03 KENNEDY STREET 0.027 0.027 0.022 0.023
1Q2024 Feb 07, 2024 2DBP-04 SW POPLAR LANE 0.026 0.026 0.025 0.026
4Q2023 Nov 08, 2023 2DBP-01 SYLVAN COURT 0.028 0.027 0.025 0.023
4Q2023 Nov 08, 2023 2DBP-02 FAIRWAY DR 0.028 0.026 0.025 0.023
4Q2023 Nov 08, 2023 2DBP-03 KENNEDY STREET 0.028 0.027 0.022 0.021
4Q2023 Nov 08, 2023 2DBP-04 SW POPLAR LANE 0.028 0.026 0.026 0.024
3Q2023 Aug 09, 2023 2DBP-01 SYLVAN COURT 0.026 0.029 0.023 0.025
3Q2023 Aug 09, 2023 2DBP-02 FAIRWAY DR 0.026 0.029 0.024 0.026
3Q2023 Aug 09, 2023 2DBP-03 KENNEDY STREET 0.026 0.029 0.020 0.022
3Q2023 Aug 09, 2023 2DBP-04 SW POPLAR LANE 0.026 0.029 0.023 0.025
2Q2023 May 10, 2023 2DBP-01 SYLVAN COURT 0.025 0.025 0.023 0.023
2Q2023 May 10, 2023 2DBP-02 FAIRWAY DR 0.025 0.024 0.024 0.024
2Q2023 May 10, 2023 2DBP-03 KENNEDY STREET 0.025 0.024 0.021 0.020
2Q2023 May 10, 2023 2DBP-04 SW POPLAR LANE 0.025 0.024 0.024 0.024
1Q2023 Feb 08, 2023 2DBP-01 SYLVAN COURT 0.026 0.027 0.024 0.024
1Q2023 Feb 08, 2023 2DBP-02 FAIRWAY DR 0.026 0.027 0.025 0.026
1Q2023 Feb 08, 2023 2DBP-03 KENNEDY STREET 0.025 0.026 0.019 0.021
1Q2023 Feb 08, 2023 2DBP-04 SW POPLAR LANE 0.025 0.026 0.024 0.025
4Q2022 Nov 09, 2022 2DBP-01 SYLVAN COURT 0.024 0.022 0.023 0.020
4Q2022 Nov 09, 2022 2DBP-02 FAIRWAY DR 0.024 0.022 0.024 0.021
4Q2022 Nov 09, 2022 2DBP-03 KENNEDY STREET 0.024 0.022 0.018 0.017
4Q2022 Nov 09, 2022 2DBP-04 SW POPLAR LANE 0.024 0.022 0.023 0.021
3Q2022 Aug 11, 2022 2DBP-01 SYLVAN COURT 0.030 0.027 0.027 0.026
3Q2022 Aug 11, 2022 2DBP-02 FAIRWAY DR 0.030 0.027 0.028 0.027
3Q2022 Aug 11, 2022 2DBP-03 KENNEDY STREET 0.029 0.027 0.021 0.021
3Q2022 Aug 11, 2022 2DBP-04 SW POPLAR LANE 0.029 0.026 0.024 0.026
2Q2022 May 12, 2022 2DBP-01 SYLVAN COURT 0.028 0.030 0.024 0.027
2Q2022 May 12, 2022 2DBP-02 FAIRWAY DR 0.028 0.030 0.026 0.028
2Q2022 May 12, 2022 2DBP-03 KENNEDY STREET 0.027 0.029 0.018 0.019
2Q2022 May 12, 2022 2DBP-04 SW POPLAR LANE 0.027 0.029 0.022 0.024
1Q2022 Feb 09, 2022 2DBP-01 SYLVAN COURT 0.027 0.028 0.022 0.024
1Q2022 Feb 09, 2022 2DBP-02 FAIRWAY DR 0.027 0.028 0.024 0.026
1Q2022 Feb 09, 2022 2DBP-03 KENNEDY STREET 0.026 0.027 0.018 0.019
1Q2022 Feb 09, 2022 2DBP-04 SW POPLAR LANE 0.026 0.027 0.019 0.021
4Q2021 Nov 10, 2021 2DBP-01 SYLVAN COURT 0.029 0.030 0.022 0.023
4Q2021 Nov 10, 2021 2DBP-02 FAIRWAY DR 0.029 0.030 0.023 0.025
4Q2021 Nov 10, 2021 2DBP-03 KENNEDY STREET 0.028 0.029 0.018 0.019
4Q2021 Nov 10, 2021 2DBP-04 SW POPLAR LANE 0.029 0.029 0.020 0.018
3Q2021 Aug 11, 2021 2DBP-01 SYLVAN COURT 0.032 0.025 0.022 0.018
3Q2021 Aug 11, 2021 2DBP-02 FAIRWAY DR 0.032 0.025 0.023 0.019
3Q2021 Aug 11, 2021 2DBP-03 KENNEDY STREET 0.031 0.025 0.018 0.015
3Q2021 Aug 11, 2021 2DBP-04 SW POPLAR LANE 0.032 0.025 0.020 0.019
2Q2021 May 06, 2021 2DBP-01 SYLVAN COURT 0.037 0.032 0.026 0.022
2Q2021 May 06, 2021 2DBP-02 FAIRWAY DR 0.036 0.032 0.027 0.024
2Q2021 May 06, 2021 2DBP-03 KENNEDY STREET 0.036 0.031 0.020 0.019
2Q2021 May 06, 2021 2DBP-04 SW POPLAR LANE 0.036 0.032 0.024 0.020
1Q2021 Feb 10, 2021 2DBP-01 SYLVAN COURT 0.040 0.040 0.029 0.028
1Q2021 Feb 10, 2021 2DBP-02 FAIRWAY DR 0.040 0.040 0.030 0.029
1Q2021 Feb 10, 2021 2DBP-03 KENNEDY STREET 0.037 0.039 0.022 0.021
1Q2021 Feb 10, 2021 2DBP-04 SW POPLAR LANE 0.037 0.039 0.026 0.027
4Q2020 Nov 04, 2020 2DBP-01 SYLVAN COURT 0.040 0.043 0.030 0.031
4Q2020 Nov 04, 2020 2DBP-02 FAIRWAY DR 0.038 0.043 0.029 0.031
4Q2020 Nov 04, 2020 2DBP-03 KENNEDY STREET 0.035 0.040 0.023 0.023
4Q2020 Nov 04, 2020 2DBP-04 SW POPLAR LANE 0.035 0.040 0.026 0.024
3Q2020 Aug 05, 2020 2DBP-01 SYLVAN COURT 0.039 0.038 0.032 0.030
3Q2020 Aug 05, 2020 2DBP-02 FAIRWAY DR 0.038 0.036 0.032 0.029
3Q2020 Aug 05, 2020 2DBP-03 KENNEDY STREET 0.034 0.034 0.026 0.023
3Q2020 Aug 05, 2020 2DBP-04 SW POPLAR LANE 0.035 0.033 0.029 0.028
2Q2020 May 06, 2020 2DBP-01 SYLVAN COURT 0.034 0.036 0.028 0.030
2Q2020 May 06, 2020 2DBP-02 FAIRWAY DR 0.033 0.037 0.027 0.030
2Q2020 May 06, 2020 2DBP-03 KENNEDY STREET 0.030 0.031 0.025 0.026
2Q2020 May 06, 2020 2DBP-04 SW POPLAR LANE 0.031 0.033 0.025 0.027
1Q2020 Feb 05, 2020 2DBP-01 SYLVAN COURT 0.035 0.034 0.028 0.028
1Q2020 Feb 05, 2020 2DBP-02 FAIRWAY DR 0.032 0.031 0.028 0.027
1Q2020 Feb 05, 2020 2DBP-03 KENNEDY STREET 0.032 0.030 0.025 0.025
1Q2020 Feb 05, 2020 2DBP-04 SW POPLAR LANE 0.032 0.032 0.027 0.027
4Q2019 Nov 06, 2019 2DBP-01 SYLVAN COURT 0.034 0.037 0.028 0.031
4Q2019 Nov 06, 2019 2DBP-02 FAIRWAY DR 0.033 0.037 0.029 0.032
4Q2019 Nov 06, 2019 2DBP-03 KENNEDY STREET 0.032 0.035 0.024 0.028
4Q2019 Nov 06, 2019 2DBP-04 SW POPLAR LANE 0.032 0.036 0.027 0.027
3Q2019 Aug 07, 2019 2DBP-01 SYLVAN COURT 0.031 0.029 0.024 0.022
3Q2019 Aug 07, 2019 2DBP-02 FAIRWAY DR 0.028 0.026 0.024 0.022
3Q2019 Aug 07, 2019 2DBP-03 KENNEDY STREET 0.028 0.026 0.019 0.019
3Q2019 Aug 07, 2019 2DBP-04 SW POPLAR LANE 0.028 0.027 0.024 0.022
2Q2019 May 08, 2019 2DBP-01 SYLVAN COURT 0.030 0.034 0.024 0.027
2Q2019 May 08, 2019 2DBP-02 FAIRWAY DR 0.027 0.030 0.023 0.027
2Q2019 May 08, 2019 2DBP-03 KENNEDY STREET 0.027 0.031 0.018 0.022
2Q2019 May 08, 2019 2DBP-04 SW POPLAR LANE 0.027 0.030 0.024 0.027
1Q2019 Feb 06, 2019 2DBP-01 SYLVAN COURT 0.029 0.028 0.022 0.024
1Q2019 Feb 06, 2019 2DBP-02 FAIRWAY DR 0.028 0.027 0.021 0.023
1Q2019 Feb 06, 2019 2DBP-03 KENNEDY STREET 0.026 0.025 0.016 0.017
1Q2019 Feb 06, 2019 2DBP-04 SW POPLAR LANE 0.028 0.026 0.023 0.024
4Q2018 Nov 07, 2018 2DBP-01 SYLVAN COURT 0.029 0.030 0.022 0.022
4Q2018 Nov 07, 2018 2DBP-02 FAIRWAY DR 0.028 0.028 0.021 0.020
4Q2018 Nov 07, 2018 2DBP-03 KENNEDY STREET 0.026 0.026 0.014 0.016
4Q2018 Nov 07, 2018 2DBP-04 SW POPLAR LANE 0.028 0.028 0.022 0.021
3Q2018 Aug 08, 2018 2DBP-01 SYLVAN COURT 0.035 0.026 0.028 0.019
3Q2018 Aug 08, 2018 2DBP-02 FAIRWAY DR 0.034 0.025 0.029 0.019
3Q2018 Aug 08, 2018 2DBP-03 KENNEDY STREET 0.033 0.024 0.016 0.012
3Q2018 Aug 08, 2018 2DBP-04 SW POPLAR LANE 0.034 0.025 0.029 0.020
2Q2018 May 09, 2018 2DBP-01 SYLVAN COURT 0.037 0.039 0.032 0.031
2Q2018 May 09, 2018 2DBP-02 FAIRWAY DR 0.036 0.039 0.034 0.032
2Q2018 May 09, 2018 2DBP-03 KENNEDY STREET 0.035 0.036 0.019 0.017
2Q2018 May 09, 2018 2DBP-04 SW POPLAR LANE 0.037 0.039 0.033 0.031
1Q2018 Feb 28, 2018 2DBP-01 SYLVAN COURT 0.036 0.035 0.034 0.033
1Q2018 Feb 28, 2018 2DBP-02 FAIRWAY DR 0.035 0.034 0.035 0.035
1Q2018 Feb 28, 2018 2DBP-03 KENNEDY STREET 0.034 0.033 0.022 0.019
1Q2018 Feb 28, 2018 2DBP-04 SW POPLAR LANE 0.035 0.034 0.034 0.034
4Q2017 Nov 08, 2017 2DBP-01 SYLVAN COURT 0.034 0.042 0.034 0.040
4Q2017 Nov 08, 2017 2DBP-02 FAIRWAY DR 0.034 0.042 0.034 0.042
4Q2017 Nov 08, 2017 2DBP-03 KENNEDY STREET 0.033 0.041 0.024 0.025
4Q2017 Nov 08, 2017 2DBP-04 SW POPLAR LANE 0.034 0.042 0.033 0.040
3Q2017 Aug 09, 2017 2DBP-01 SYLVAN COURT 0.033 0.027 0.034 0.029
3Q2017 Aug 09, 2017 2DBP-02 FAIRWAY DR 0.032 0.027 0.035 0.029
3Q2017 Aug 09, 2017 2DBP-03 KENNEDY STREET 0.031 0.027 0.026 0.024
3Q2017 Aug 09, 2017 2DBP-04 SW POPLAR LANE 0.031 0.027 0.032 0.028
2Q2017 May 10, 2017 2DBP-01 SYLVAN COURT 0.032 0.033 0.033 0.034
2Q2017 May 10, 2017 2DBP-02 FAIRWAY DR 0.033 0.033 0.034 0.035
2Q2017 May 10, 2017 2DBP-03 KENNEDY STREET 0.030 0.032 0.026 0.027
2Q2017 May 10, 2017 2DBP-04 SW POPLAR LANE 0.031 0.032 0.031 0.032
1Q2017 Feb 08, 2017 2DBP-01 SYLVAN COURT 0.030 0.030 0.033 0.032
1Q2017 Feb 08, 2017 2DBP-02 FAIRWAY DR 0.032 0.031 0.033 0.032
1Q2017 Feb 08, 2017 2DBP-03 KENNEDY STREET 0.029 0.029 0.025 0.024
1Q2017 Feb 08, 2017 2DBP-04 SW POPLAR LANE 0.030 0.030 0.031 0.029
4Q2016 Nov 09, 2016 2DBP-01 SYLVAN COURT 0.031 0.036 0.034 0.039
4Q2016 Nov 09, 2016 2DBP-02 FAIRWAY DR 0.032 0.038 0.034 0.040
4Q2016 Nov 09, 2016 2DBP-03 KENNEDY STREET 0.029 0.034 0.025 0.028
4Q2016 Nov 09, 2016 2DBP-04 SW POPLAR LANE 0.030 0.035 0.032 0.036
3Q2016 Aug 10, 2016 2DBP-01 SYLVAN COURT 0.029 0.025 0.033 0.028
3Q2016 Aug 10, 2016 2DBP-02 FAIRWAY DR 0.031 0.026 0.030 0.027
3Q2016 Aug 10, 2016 2DBP-03 KENNEDY STREET 0.029 0.025 0.025 0.022
3Q2016 Aug 10, 2016 2DBP-04 SW POPLAR LANE 0.028 0.025 0.025 0.027
2Q2016 May 11, 2016 2DBP-01 SYLVAN COURT 0.028 0.029 0.030 0.033
2Q2016 May 11, 2016 2DBP-02 FAIRWAY DR 0.030 0.031 0.027 0.030
2Q2016 May 11, 2016 2DBP-03 KENNEDY STREET 0.027 0.029 0.022 0.025
2Q2016 May 11, 2016 2DBP-04 SW POPLAR LANE 0.027 0.028 0.023 0.026
1Q2016 Feb 10, 2016 2DBP-01 SYLVAN COURT 0.030 0.028 0.032 0.030
1Q2016 Feb 10, 2016 2DBP-02 FAIRWAY DR 0.031 0.029 0.028 0.027
1Q2016 Feb 10, 2016 2DBP-03 KENNEDY STREET 0.029 0.027 0.022 0.023
1Q2016 Feb 10, 2016 2DBP-04 SW POPLAR LANE 0.028 0.026 0.022 0.023
4Q2015 Nov 19, 2015 2DBP-01 SYLVAN COURT 0.033 0.034 0.035 0.036
4Q2015 Nov 19, 2015 2DBP-02 FAIRWAY DR 0.035 0.036 0.032 0.030
4Q2015 Nov 19, 2015 2DBP-03 KENNEDY STREET 0.032 0.033 0.023 0.025
4Q2015 Nov 19, 2015 2DBP-04 SW POPLAR LANE 0.031 0.032 0.024 0.019
3Q2015 Aug 05, 2015 2DBP-01 SYLVAN COURT 0.034 0.027 0.035 0.027
3Q2015 Aug 05, 2015 2DBP-02 FAIRWAY DR 0.035 0.028 0.035 0.025
3Q2015 Aug 05, 2015 2DBP-03 KENNEDY STREET 0.032 0.027 0.021 0.017
3Q2015 Aug 05, 2015 2DBP-04 SW POPLAR LANE 0.033 0.026 0.027 0.023
2Q2015 May 13, 2015 2DBP-01 SYLVAN COURT 0.037 0.037 0.038 0.040
2Q2015 May 13, 2015 2DBP-02 FAIRWAY DR 0.037 0.037 0.040 0.041
2Q2015 May 13, 2015 2DBP-03 KENNEDY STREET 0.034 0.035 0.024 0.024
2Q2015 May 13, 2015 2DBP-04 SW POPLAR LANE 0.035 0.035 0.028 0.030
1Q2015 Feb 11, 2015 2DBP-01 SYLVAN COURT 0.036 0.038 0.038 0.040
1Q2015 Feb 11, 2015 2DBP-02 FAIRWAY DR 0.036 0.039 0.040 0.042
1Q2015 Feb 11, 2015 2DBP-03 KENNEDY STREET 0.033 0.036 0.026 0.025
1Q2015 Feb 11, 2015 2DBP-04 SW POPLAR LANE 0.034 0.037 0.030 0.029
4Q2014 Nov 12, 2014 2DBP-01 SYLVAN COURT 0.032 0.038 0.036 0.040
4Q2014 Nov 12, 2014 2DBP-02 FAIRWAY DR 0.032 0.038 0.038 0.042
4Q2014 Nov 12, 2014 2DBP-03 KENNEDY STREET 0.030 0.035 0.026 0.026
4Q2014 Nov 12, 2014 2DBP-04 SW POPLAR LANE 0.031 0.036 0.030 0.029
3Q2014 Aug 13, 2014 2DBP-01 SYLVAN COURT 0.031 0.028 0.032 0.031
3Q2014 Aug 13, 2014 2DBP-02 FAIRWAY DR 0.030 0.028 0.035 0.032
3Q2014 Aug 13, 2014 2DBP-03 KENNEDY STREET 0.030 0.026 0.024 0.024
3Q2014 Aug 13, 2014 2DBP-04 SW POPLAR LANE 0.030 0.027 0.027 0.026
2Q2014 May 14, 2014 2DBP-01 SYLVAN COURT 0.031 0.030 0.032 0.034
2Q2014 May 14, 2014 2DBP-02 FAIRWAY DR 0.030 0.030 0.035 0.036
2Q2014 May 14, 2014 2DBP-03 KENNEDY STREET 0.030 0.029 0.023 0.027
2Q2014 May 14, 2014 2DBP-04 SW POPLAR LANE 0.030 0.030 0.028 0.032
1Q2014 Feb 12, 2014 2DBP-01 SYLVAN COURT 0.030 0.030 0.032 0.031
1Q2014 Feb 12, 2014 2DBP-02 FAIRWAY DR 0.031 0.029 0.035 0.035
1Q2014 Feb 12, 2014 2DBP-03 KENNEDY STREET 0.030 0.029 0.019 0.022
1Q2014 Feb 12, 2014 2DBP-04 SW POPLAR LANE 0.029 0.029 0.026 0.028
4Q2013 Nov 06, 2013 2DBP-01 SYLVAN COURT 0.031 0.035 0.030 0.032
4Q2013 Nov 06, 2013 2DBP-02 FAIRWAY DR 0.031 0.035 0.034 0.037
4Q2013 Nov 06, 2013 2DBP-03 KENNEDY STREET 0.029 0.034 0.016 0.017
4Q2013 Nov 06, 2013 2DBP-04 SW POPLAR LANE 0.029 0.034 0.023 0.022
3Q2013 Aug 07, 2013 2DBP-01 SYLVAN COURT 0.033 0.028 0.035 0.030
3Q2013 Aug 07, 2013 2DBP-02 FAIRWAY DR 0.032 0.029 0.036 0.031
3Q2013 Aug 07, 2013 2DBP-03 KENNEDY STREET 0.029 0.026 0.019 0.015
3Q2013 Aug 07, 2013 2DBP-04 SW POPLAR LANE 0.029 0.025 0.026 0.023
2Q2013 May 08, 2013 2DBP-01 SYLVAN COURT 0.032 0.031 0.034 0.036
2Q2013 May 08, 2013 2DBP-02 FAIRWAY DR 0.031 0.032 0.035 0.037
2Q2013 May 08, 2013 2DBP-03 KENNEDY STREET 0.029 0.028 0.020 0.019
2Q2013 May 08, 2013 2DBP-04 SW POPLAR LANE 0.029 0.028 0.027 0.027
1Q2013 Feb 13, 2013 2DBP-01 SYLVAN COURT 0.032 0.032 0.034 0.031
1Q2013 Feb 13, 2013 2DBP-02 FAIRWAY DR 0.031 0.030 0.035 0.033
1Q2013 Feb 13, 2013 2DBP-03 KENNEDY STREET 0.028 0.027 0.023 0.020
1Q2013 Feb 13, 2013 2DBP-04 SW POPLAR LANE 0.029 0.028 0.027 0.026
4Q2012 Nov 07, 2012 2DBP-01 SYLVAN COURT 0.026 0.038 0.028 0.040
4Q2012 Nov 07, 2012 2DBP-02 FAIRWAY DR 0.025 0.036 0.028 0.040
4Q2012 Nov 07, 2012 2DBP-03 KENNEDY STREET 0.023 0.034 0.019 0.027
4Q2012 Nov 07, 2012 2DBP-04 SW POPLAR LANE 0.024 0.034 0.021 0.029
3Q2012 Sep 05, 2012 2DBP-01 SYLVAN COURT 0.013 0.015
3Q2012 Sep 05, 2012 2DBP-02 FAIRWAY DR 0.014 0.016
3Q2012 Sep 05, 2012 2DBP-03 KENNEDY STREET 0.012 0.012
3Q2012 Sep 05, 2012 2DBP-04 SW POPLAR LANE 0.013 0.013
2Q2012 May 09, 2012 2DBP-01 SYLVAN COURT 0.007 0.008
2Q2012 May 09, 2012 2DBP-02 FAIRWAY DR 0.007 0.008
2Q2012 May 09, 2012 2DBP-03 KENNEDY STREET 0.006 0.007
2Q2012 May 09, 2012 2DBP-04 SW POPLAR LANE 0.007 0.006



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