Montana Pole and Treating Plant 
Surface Water Pentachlorophenol Monitoring Results
Last Updated: 02 June 2021
\(\mu\)g/L = microgram per liter
MCL = maximum contaminant level for pentachlorophenol in surface water (1 ug/L)
Location SW-09 is upstream of Montana Pole.
Location SS-06A is adjacent to Montana Pole and upstream of the Water Treatment Plant Discharge.
Locations SW-05, SW-03, and SW-06 are downstream of Montana Pole.
Non-detections sample results are set to the analytical reporting limit for graphing purposes. Since 2016, the reporting limit has been 0.1 ug/L.
Multiple non-detect values plot over the top of each other, but concentrations will still display at top of graph.