OHA Drinking Water Services
OR41
PWS ID: 00977 ---- JACKSON CREEK 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
1Q2026 2DBP-01 700 NW JAMES PL 0.070 0.015
4Q2025 Nov 21, 2025 2DBP-01 700 NW JAMES PL 0.059 0.064 0.014 0.015
3Q2025 Aug 28, 2025 2DBP-01 700 NW JAMES PL 0.066 0.069 0.015 0.015
2Q2025 Apr 18, 2025 2DBP-01 700 NW JAMES PL 0.055 0.051 0.013 0.013
1Q2025 Feb 11, 2025 2DBP-01 700 NW JAMES PL 0.058 0.054 0.014 0.013
4Q2024 Nov 11, 2024 2DBP-01 700 NW JAMES PL 0.049 0.074 0.013 0.017
3Q2024 2DBP-01 700 NW JAMES PL 0.049 0.013
2Q2024 Jun 05, 2024 2DBP-01 700 NW JAMES PL 0.049 0.049 0.013 0.013
1Q2024 Mar 20, 2024 2DBP-01 700 NW JAMES PL 0.048 0.036 0.013 0.010
4Q2023 Dec 05, 2023 2DBP-01 700 NW JAMES PL 0.042 0.063 0.008 0.013
2Q2022 Jun 10, 2022 2DBP-01 700 NW JAMES PL 0.049 0.047 0.012 0.013
1Q2022 Mar 16, 2022 2DBP-01 700 NW JAMES PL 0.046 0.036 0.010 0.010
4Q2021 Dec 09, 2021 2DBP-01 700 NW JAMES PL 0.056 0.067 0.015 0.015
3Q2021 Aug 18, 2021 2DBP-01 700 NW JAMES PL 0.054 0.056 0.014 0.015
2Q2021 2DBP-01 700 NW JAMES PL 0.059 0.012
1Q2021 Mar 19, 2021 2DBP-01 700 NW JAMES PL 0.058 0.053 0.010 0.013
4Q2020 Dec 09, 2020 2DBP-01 700 NW JAMES PL 0.062 0.065 0.009 0.009
3Q2020 Sep 22, 2020 2DBP-01 700 NW JAMES PL 0.063 0.067 0.008 0.008
2Q2020 Jun 10, 2020 2DBP-01 700 NW JAMES PL 0.065 0.058 0.007 0.008
1Q2020 Mar 11, 2020 2DBP-01 700 NW JAMES PL 0.052 0.063 0.005 0.008
4Q2019 Nov 04, 2019 2DBP-01 700 NW JAMES PL 0.051 0.056 0.004 0.005
3Q2019 Aug 09, 2019 2DBP-01 700 NW JAMES PL 0.055 0.055 0.004 0.002
2Q2019 May 10, 2019 2DBP-01 700 NW JAMES PL 0.033 0.035 0.005 0.005
1Q2019 Feb 08, 2019 2DBP-01 700 NW JAMES PL 0.044 0.043 0.010 0.006
4Q2018 Nov 09, 2018 2DBP-01 700 NW JAMES PL 0.044 0.053 0.011 0.012
3Q2018 Aug 15, 2018 2DBP-01 700 NW JAMES PL 0.042 0.031 0.012 0.010
2Q2018 May 11, 2018 2DBP-01 700 NW JAMES PL 0.052 0.053 0.010 0.015
1Q2018 Feb 09, 2018 2DBP-01 700 NW JAMES PL 0.054 0.051 0.008 0.007
4Q2017 Nov 10, 2017 2DBP-01 700 NW JAMES PL 0.051 0.060 0.009 0.010
3Q2017 Aug 25, 2017 2DBP-01 700 NW JAMES PL 0.044 0.043 0.007 0.007
2Q2017 May 12, 2017 2DBP-01 700 NW JAMES PL 0.046 0.050 0.011 0.011
1Q2017 Mar 17, 2017 2DBP-01 700 NW JAMES PL 0.037 0.037 0.012 0.012
4Q2015 Nov 20, 2015 2DBP-01 700 NW JAMES PL 0.040 0.049 0.002 0.003
3Q2015 Aug 14, 2015 2DBP-01 700 NW JAMES PL 0.044 0.038 0.006 0.004
2Q2015 May 08, 2015 2DBP-01 700 NW JAMES PL 0.039 0.031 0.006 0.006
1Q2015 Feb 13, 2015 2DBP-01 700 NW JAMES PL 0.055 0.046 0.008 0.008
4Q2014 Nov 13, 2014 2DBP-01 700 NW JAMES PL 0.080 0.080 0.017 0.017