OHA Drinking Water Services
OR41
PWS ID: 00236 ---- COTTAGE GROVE, 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
1Q2024 Feb 12, 2024 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.024 0.024 0.011 0.009
1Q2024 Feb 12, 2024 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.022 0.021 0.012 0.010
4Q2023 Nov 13, 2023 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.024 0.031 0.012 0.015
4Q2023 Nov 13, 2023 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.022 0.028 0.014 0.017
3Q2023 Aug 14, 2023 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.021 0.019 0.012 0.009
3Q2023 Aug 14, 2023 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.019 0.017 0.013 0.010
2Q2023 May 08, 2023 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.024 0.020 0.012 0.013
2Q2023 May 08, 2023 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.021 0.018 0.013 0.014
1Q2023 Feb 13, 2023 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.026 0.023 0.012 0.011
1Q2023 Feb 13, 2023 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.024 0.021 0.013 0.013
4Q2022 Nov 14, 2022 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.028 0.032 0.013 0.016
4Q2022 Nov 14, 2022 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.024 0.028 0.013 0.016
3Q2022 Aug 08, 2022 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.033 0.028 0.012 0.009
3Q2022 Aug 08, 2022 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.030 0.025 0.013 0.010
2Q2022 2DBP-01 SUNFLOWER COURT SAMPLE STATION
2Q2022 2DBP-02 ROW RIVER ROAD SAMPLE STATION
1Q2022 Feb 07, 2022 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.035 0.033 0.013 0.013
1Q2022 Feb 07, 2022 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.032 0.029 0.013 0.013
4Q2021 Nov 08, 2021 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.035 0.042 0.014 0.014
4Q2021 Nov 08, 2021 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.032 0.038 0.014 0.015
3Q2021 Aug 23, 2021 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.034 0.035 0.014 0.014
3Q2021 Aug 30, 2021 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.031 0.031 0.014 0.013
2Q2021 May 10, 2021 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.032 0.029 0.013 0.013
2Q2021 May 10, 2021 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.029 0.027 0.013 0.012
1Q2021 Feb 08, 2021 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.030 0.029 0.014 0.015
1Q2021 Feb 08, 2021 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.027 0.027 0.014 0.015
4Q2020 Nov 16, 2020 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.029 0.036 0.012 0.014
4Q2020 Nov 16, 2020 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.027 0.033 0.013 0.015
3Q2020 Aug 10, 2020 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.027 0.028 0.013 0.011
3Q2020 Aug 10, 2020 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.024 0.025 0.013 0.012
2Q2020 May 11, 2020 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.024 0.023 0.013 0.012
2Q2020 May 11, 2020 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.022 0.021 0.013 0.012
1Q2020 Feb 17, 2020 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.025 0.023 0.013 0.012
1Q2020 Feb 17, 2020 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.022 0.020 0.013 0.012
4Q2019 Nov 11, 2019 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.025 0.029 0.015 0.016
4Q2019 Nov 11, 2019 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.023 0.027 0.015 0.015
3Q2019 Aug 12, 2019 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.022 0.024 0.014 0.014
3Q2019 Aug 12, 2019 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.020 0.021 0.015 0.015
2Q2019 May 13, 2019 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.020 0.020 0.013 0.012
2Q2019 May 13, 2019 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.017 0.018 0.014 0.013
1Q2019 Feb 11, 2019 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.018 0.018 0.016 0.016
1Q2019 Feb 11, 2019 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.015 0.015 0.018 0.018
3Q2014 Aug 04, 2014 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.025 0.020 0.016 0.013
3Q2014 Aug 04, 2014 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.023 0.019 0.015 0.013
2Q2014 May 05, 2014 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.020 0.024 0.012 0.015
2Q2014 May 05, 2014 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.018 0.022 0.012 0.014
1Q2014 Feb 03, 2014 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.015 0.009
1Q2014 Feb 03, 2014 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.014 0.009
4Q2013 Nov 04, 2013 2DBP-01 SUNFLOWER COURT SAMPLE STATION 0.011 0.006
4Q2013 Nov 04, 2013 2DBP-02 ROW RIVER ROAD SAMPLE STATION 0.010 0.006



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