OHA Drinking Water Services
OR41
PWS ID: 00890 ---- LONG PRAIRIE WATER DISTRICT
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
4Q2015 Nov 03, 2015 2DBP-01 10945 CHANCE RD 0.009 0.013 0.003 0.005
3Q2015 Sep 01, 2015 2DBP-01 10945 CHANCE RD 0.006 0.009 0.002 0.002
2Q2015 May 05, 2015 2DBP-01 10945 CHANCE RD 0.004 0.002 0.001 0.001
1Q2015 Feb 17, 2015 2DBP-01 10945 CHANCE RD 0.004 0.005 0 0.001
4Q2014 2DBP-01 10945 CHANCE RD 0.004 0
3Q2014 Aug 19, 2014 2DBP-01 10945 CHANCE RD 0.004 0.005 0 0.001
2Q2014 May 20, 2014 2DBP-01 10945 CHANCE RD 0.002 0.002 0 0
1Q2014 Feb 27, 2014 2DBP-01 10945 CHANCE RD 0.001 0
4Q2013 2DBP-01 10945 CHANCE RD