OHA Drinking Water Services
OR41
PWS ID: 01449 ---- MARSHLAND WATER ASSOCIATION
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 2DBP-01 13622 HANHI DRIVE 0.060 0.083
2Q2024 May 08, 2024 2DBP-01 13622 HANHI DRIVE 0.050 0.048 0.067 0.070
1Q2024 Feb 21, 2024 2DBP-01 13622 HANHI DRIVE 0.048 0.049 0.062 0.063
4Q2023 Nov 08, 2023 2DBP-01 13622 HANHI DRIVE 0.047 0.062 0.060 0.083
3Q2023 Aug 09, 2023 2DBP-01 13622 HANHI DRIVE 0.039 0.036 0.052 0.041
2Q2023 May 17, 2023 2DBP-01 13622 HANHI DRIVE 0.037 0.036 0.054 0.049
1Q2023 Feb 08, 2023 2DBP-01 13622 HANHI DRIVE 0.039 0.036 0.060 0.054
4Q2022 Nov 09, 2022 2DBP-01 13622 HANHI DRIVE 0.038 0.048 0.058 0.079
3Q2022 2DBP-01 13622 HANHI DRIVE 0.036 0.053
2Q2022 May 11, 2022 2DBP-01 13622 HANHI DRIVE 0.039 0.036 0.047 0.053
1Q2022 Feb 16, 2022 2DBP-01 13622 HANHI DRIVE 0.038 0.035 0.044 0.041
4Q2021 Dec 01, 2021 2DBP-01 13622 HANHI DRIVE 0.040 0.044 0.045 0.055
3Q2021 Aug 18, 2021 2DBP-01 13622 HANHI DRIVE 0.044 0.040 0.043 0.034
2Q2021 May 19, 2021 2DBP-01 13622 HANHI DRIVE 0.047 0.041 0.044 0.045
1Q2021 Feb 24, 2021 2DBP-01 13622 HANHI DRIVE 0.048 0.047 0.046 0.043
4Q2020 Nov 11, 2020 2DBP-01 13622 HANHI DRIVE 0.045 0.056 0.046 0.054
3Q2020 Sep 16, 2020 2DBP-01 13622 HANHI DRIVE 0.038 0.043 0.039 0.038
2Q2020 May 06, 2020 2DBP-01 13622 HANHI DRIVE 0.036 0.031 0.041 0.045
1Q2020 Mar 04, 2020 2DBP-01 13622 HANHI DRIVE 0.038 0.031 0.042 0.037
4Q2019 2DBP-01 13622 HANHI DRIVE 0.039 0.044
3Q2019 Aug 21, 2019 2DBP-01 13622 HANHI DRIVE 0.046 0.043 0.047 0.042
2Q2019 May 15, 2019 2DBP-01 13622 HANHI DRIVE 0.045 0.044 0.048 0.050
1Q2019 Feb 20, 2019 2DBP-01 13622 HANHI DRIVE 0.043 0.040 0.045 0.046
4Q2018 Nov 14, 2018 2DBP-01 13622 HANHI DRIVE 0.045 0.054 0.044 0.049
3Q2018 Aug 15, 2018 2DBP-01 13622 HANHI DRIVE 0.043 0.039 0.049 0.040
2Q2018 May 23, 2018 2DBP-01 13622 HANHI DRIVE 0.044 0.040 0.051 0.048
1Q2018 Mar 07, 2018 2DBP-01 13622 HANHI DRIVE 0.042 0.042 0.053 0.053
4Q2017 Nov 08, 2017 2DBP-01 13622 HANHI DRIVE 0.039 0.049 0.050 0.062
3Q2017 Sep 06, 2017 2DBP-01 13622 HANHI DRIVE 0.045 0.037 0.051 0.043
2Q2017 May 24, 2017 2DBP-01 13622 HANHI DRIVE 0.049 0.040 0.054 0.049
1Q2017 Mar 01, 2017 2DBP-01 13622 HANHI DRIVE 0.051 0.046 0.056 0.051
4Q2016 Nov 16, 2016 2DBP-01 13622 HANHI DRIVE 0.055 0.066 0.061 0.069
3Q2016 Aug 10, 2016 2DBP-01 13622 HANHI DRIVE 0.045 0.051 0.056 0.057
2Q2016 May 18, 2016 2DBP-01 13622 HANHI DRIVE 0.043 0.038 0.054 0.052
1Q2016 Feb 17, 2016 2DBP-01 13622 HANHI DRIVE 0.046 0.042 0.056 0.054
4Q2015 Dec 02, 2015 2DBP-01 13622 HANHI DRIVE 0.042 0.047 0.053 0.059
3Q2015 Aug 19, 2015 2DBP-01 13622 HANHI DRIVE 0.046 0.046 0.057 0.052
2Q2015 Jun 10, 2015 2DBP-01 13622 HANHI DRIVE 0.046 0.044 0.060 0.057
1Q2015 Mar 11, 2015 2DBP-01 13622 HANHI DRIVE 0.033 0.0383 0.046 0.0558
4Q2014 Dec 10, 2014 2DBP-01 13622 HANHI DRIVE 0.029 0.037
3Q2014 Aug 20, 2014 2DBP-01 13622 HANHI DRIVE 0.015 0.018



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