OHA Drinking Water Services
OR41
PWS ID: 00689 ---- CITY OF RAINIER
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 20, 2024 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.043 0.009 0.005
4Q2023 Nov 14, 2023 2DBP-01 USG PUMP STATION-DIKE RD 0.050 0.053 0.007 0.009
3Q2023 Aug 08, 2023 2DBP-01 USG PUMP STATION-DIKE RD 0.051 0.053 0.007 0.009
2Q2023 May 16, 2023 2DBP-01 USG PUMP STATION-DIKE RD 0.050 0.046 0.007 0.013
1Q2023 Feb 14, 2023 2DBP-01 USG PUMP STATION-DIKE RD 0.046 0.049 0.002 0
4Q2022 Oct 04, 2022 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.049 0.002 0.003
3Q2022 Aug 02, 2022 2DBP-01 USG PUMP STATION-DIKE RD 0.043 0.048 0.002 0.003
2Q2022 Apr 12, 2022 2DBP-01 USG PUMP STATION-DIKE RD 0.039 0.036 0.002 0.005
1Q2022 Jan 11, 2022 2DBP-01 USG PUMP STATION-DIKE RD 0.039 0.042 0 0
4Q2021 Nov 02, 2021 2DBP-01 USG PUMP STATION-DIKE RD 0.037 0.039 0 0
3Q2021 Jul 07, 2021 2DBP-01 USG PUMP STATION-DIKE RD 0.037 0.036 0 0
2Q2021 Apr 14, 2021 2DBP-01 USG PUMP STATION-DIKE RD 0.044 0.036 0 0
1Q2021 Feb 03, 2021 2DBP-01 USG PUMP STATION-DIKE RD 0.046 0.044 0.003 0
4Q2020 Nov 19, 2020 2DBP-01 USG PUMP STATION-DIKE RD 0.044 0.048 0.006 0.004
3Q2020 Sep 16, 2020 2DBP-01 USG PUMP STATION-DIKE RD 0.043 0.050 0.006 0.008
2Q2020 May 18, 2020 2DBP-01 USG PUMP STATION-DIKE RD 0.040 0.037 0.006 0.009
1Q2020 Feb 25, 2020 2DBP-01 USG PUMP STATION-DIKE RD 0.045 0.037 0.004 0.005
4Q2019 Nov 26, 2019 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.048 0.003 0
3Q2019 Aug 08, 2019 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.051 0.003 0.005
2Q2019 Jun 05, 2019 2DBP-01 USG PUMP STATION-DIKE RD 0.051 0.049 0.003
1Q2019 Feb 07, 2019 2DBP-01 USG PUMP STATION-DIKE RD 0.049 0.045 0.006 0.005
4Q2018 Nov 19, 2018 2DBP-01 USG PUMP STATION-DIKE RD 0.050 0.050 0.006 0.004
3Q2018 Sep 19, 2018 2DBP-01 USG PUMP STATION-DIKE RD 0.049 0.058 0.009 0.008
2Q2018 May 25, 2018 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.044 0.009 0.012
1Q2018 Feb 27, 2018 2DBP-01 USG PUMP STATION-DIKE RD 0.051 0.045 0.007 0.008
4Q2017 Nov 29, 2017 2DBP-01 USG PUMP STATION-DIKE RD 0.049 0.049 0.004 0.009
3Q2017 Aug 22, 2017 2DBP-01 USG PUMP STATION-DIKE RD 0.053 0.056 0 0
2Q2017 Jun 13, 2017 2DBP-01 USG PUMP STATION-DIKE RD 0.047 0.054 0
1Q2017 Feb 02, 2017 2DBP-01 USG PUMP STATION-DIKE RD 0.038 0.036 0 0
4Q2016 2DBP-01 USG PUMP STATION-DIKE RD 0.033 0.008
3Q2016 Aug 15, 2016 2DBP-01 USG PUMP STATION-DIKE RD 0.036 0.037 0.006 0.008
2Q2016 2DBP-01 USG PUMP STATION-DIKE RD 0.039 0.006
1Q2016 Feb 16, 2016 2DBP-01 USG PUMP STATION-DIKE RD 0.039 0.034 0.007 0.009
4Q2015 Oct 05, 2015 2DBP-01 USG PUMP STATION-DIKE RD 0.043 0.045 0.002 0.003
3Q2015 Jul 23, 2015 2DBP-01 USG PUMP STATION-DIKE RD 0.043 0.046 0.003 0.003
2Q2015 Apr 13, 2015 2DBP-01 USG PUMP STATION-DIKE RD 0.042 0.037 0.003 0.005
1Q2015 Feb 11, 2015 2DBP-01 USG PUMP STATION-DIKE RD 0.045 0.041 0 0
4Q2014 2DBP-01 USG PUMP STATION-DIKE RD 0.046 0
3Q2014 Aug 25, 2014 2DBP-01 USG PUMP STATION-DIKE RD 0.045 0.048 0 0
2Q2014 May 13, 2014 2DBP-01 USG PUMP STATION-DIKE RD 0.032 0.044 0 0
1Q2014 Feb 05, 2014 2DBP-01 USG PUMP STATION-DIKE RD 0.020 0
4Q2013 Nov 27, 2013 2DBP-01 USG PUMP STATION-DIKE RD 0.011 0



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