Results from Methylmercury Monitoring
All data collected as part of the Methylmercury Monitoring Plan beginning on October 14th, 2016 is available below:
*Website last updated: February 28th, 2024
The initial data collected under the plan represents the establishment of a baseline for methylmercury and related parameters that can be compared with future monitoring results.
For graphing purposes, total methylmercury concentrations that were reported as less than the detection limit of 0.01 ng/L (<0.01 ng/L in the spreadsheet) are plotted on the x-axis in order to clearly distinguish from actual reported concentrations of 0.01 ng/L or more. Whenever there is a detection limit reported, the actual total methylmercury concentration cannot be determined in the laboratory, but the concentration will be somewhere in the range of more than nothing to less than 0.01 ng/L.
Updates are provided on this site as soon as sample analysis results become available.
Methylmercury Monitoring Plan
Monitoring for methylmercury in the Lower Churchill River area is conducted as outlined in the Methylmercury Monitoring Plan (5.43 MB).
The plan involves the thorough monitoring of the water quality of the Muskrat Falls Reservoir, portions of the Churchill River, Goose Bay, and Lake Melville and involves the assessment of changes in the level of methylmercury in water and sediment due to the creation of the reservoir. The plan builds on water quality monitoring that is already conducted by the Department of Municipal Affairs and Environment. The plan also augments methylmercury monitoring in biota (the animal and plant life) that is being conducted as part of Nalcor’s Aquatic Environmental Effects Monitoring Plan.
Sampling Locations as per the Methylmercury Monitoring Plan
External Information
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