OHA Drinking Water Services
OR41
PWS ID: 00958 ---- YONCALLA, 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
4Q2019 Oct 17, 2019 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.031 0.031
4Q2019 Oct 17, 2019 2DBP-02 SM-2 - 1008 HAYHURST RD 0.020 0.015
3Q2019 Jul 11, 2019 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.035 0.037
3Q2019 Jul 11, 2019 2DBP-02 SM-2 - 1008 HAYHURST RD 0.021 0.018
2Q2019 Apr 18, 2019 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.036 0.029
2Q2019 Apr 18, 2019 2DBP-02 SM-2 - 1008 HAYHURST RD 0.022 0.027
1Q2019 Jan 17, 2019 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.034 0.035
1Q2019 Jan 17, 2019 2DBP-02 SM-2 - 1008 HAYHURST RD 0.020 0.022
4Q2018 Oct 25, 2018 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.036 0.038
4Q2018 Oct 25, 2018 2DBP-02 SM-2 - 1008 HAYHURST RD 0.020 0.016
3Q2018 Jul 05, 2018 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.035 0.040
3Q2018 Jul 05, 2018 2DBP-02 SM-2 - 1008 HAYHURST RD 0.018 0.018
2Q2018 Apr 12, 2018 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.029 0.026
2Q2018 Apr 12, 2018 2DBP-02 SM-2 - 1008 HAYHURST RD 0.020 0.022
1Q2018 Jan 26, 2018 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.028 0.032
1Q2018 Jan 26, 2018 2DBP-02 SM-2 - 1008 HAYHURST RD 0.018 0.022
4Q2017 Oct 13, 2017 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.024 0.028
4Q2017 Oct 13, 2017 2DBP-02 SM-2 - 1008 HAYHURST RD 0.015 0.012
3Q2017 Jul 13, 2017 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.023 0.024
3Q2017 Jul 13, 2017 2DBP-02 SM-2 - 1008 HAYHURST RD 0.017 0.016
2Q2017 Apr 20, 2017 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.025 0.020
2Q2017 Apr 20, 2017 2DBP-02 SM-2 - 1008 HAYHURST RD 0.015 0.018
1Q2017 Jan 09, 2017 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.028 0.024
1Q2017 Jan 09, 2017 2DBP-02 SM-2 - 1008 HAYHURST RD 0.012 0.014
4Q2016 Nov 08, 2016 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.030 0.030
4Q2016 Nov 08, 2016 2DBP-02 SM-2 - 1008 HAYHURST RD 0.013 0.012
3Q2016 Aug 04, 2016 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.032 0.032
3Q2016 Aug 04, 2016 2DBP-02 SM-2 - 1008 HAYHURST RD 0.013 0.010
2Q2016 May 05, 2016 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.037 0.030
2Q2016 May 05, 2016 2DBP-02 SM-2 - 1008 HAYHURST RD 0.014 0.013
1Q2016 Feb 04, 2016 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.036 0.036
1Q2016 Feb 04, 2016 2DBP-02 SM-2 - 1008 HAYHURST RD 0.012 0.016
4Q2015 Dec 03, 2015 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.038 0.039
4Q2015 Dec 03, 2015 2DBP-02 SM-2 - 1008 HAYHURST RD 0.010 0.012
3Q2015 Jul 09, 2015 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.035 0.043
3Q2015 Jul 09, 2015 2DBP-02 SM-2 - 1008 HAYHURST RD 0.007 0.008
2Q2015 Apr 09, 2015 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.026 0.027
2Q2015 Apr 09, 2015 2DBP-02 SM-2 - 1008 HAYHURST RD 0.007 0.006
1Q2015 Jan 08, 2015 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.028 0.027
1Q2015 Jan 08, 2015 2DBP-02 SM-2 - 1008 HAYHURST RD 0.009 0.010
4Q2014 Nov 13, 2014 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.027 0.027
4Q2014 Nov 13, 2014 2DBP-02 SM-2 - 1008 HAYHURST RD 0.010 0.009
3Q2014 Aug 14, 2014 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.028 0.025
3Q2014 Aug 14, 2014 2DBP-02 SM-2 - 1008 HAYHURST RD 0.011 0.012
2Q2014 May 08, 2014 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.023 0.031
2Q2014 May 08, 2014 2DBP-02 SM-2 - 1008 HAYHURST RD 0.008 0.011
1Q2014 Feb 11, 2014 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.015
1Q2014 Feb 11, 2014 2DBP-02 SM-2 - 1008 HAYHURST RD 0.006
4Q2013 Nov 06, 2013 2DBP-01 S1-1 STAGE 1 - 390 HALO TRAIL 0.008
4Q2013 Nov 06, 2013 2DBP-02 SM-2 - 1008 HAYHURST RD 0.003



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