Analysis of Water Quality Monitoring in the Morice Water Management Area

The Morice Water Management Area (MWMA) was established in 2007 by the Morice Land and Resource Management Plan with the intent to protect the hydrological integrity, water quality, water quantity, and fisheries of the upper Morice River watershed. The major objectives of this report are to summarize water quality monitoring data for the period of record held by the Morice Water Monitoring Trust (MWMT) and the Office of the Wet’suwet’en (OW), interpret the results, and provide recommendations and reference material for a framework of future monitoring, data management, and analyses.

Based on water quality data collected at sites monitored from 2015-2017, conditions within the MWMA are generally in the range of values expected for least-impacted, natural surface water bodies in this region, although certain constituents at specific sites were routinely high and regularly exceeded B.C. Water Quality Guidelines for the protection of aquatic life. Where constituents consistently exceed B.C. Water Quality Guidelines, we recommend adopting Water Quality Objectives to protect high quality fisheries and watershed values from future change. Water quality was more different between sites than within sites, and therefore sites were distinct from one another and represent unique water quality conditions at each location. Certain constituents showed seasonal variability, but seasonal cycling was site-specific and when considered across all sites, seasonal differences for most constituents were rare. Based on initial investigation of power analysis requirements, sample size is currently too low to evaluate meaningful effect sizes, and several examples are provided of how statistical power may be used in future monitoring designs and analysis to address specific objectives.

Terms of reference are provided for development of a template approach to longterm monitoring, including consideration of land use and climate change effects on current and future water quality conditions as well as recommendations for future monitoring (2019 and beyond), data management, data analysis, and reporting.

Data and Resources

Additional Info

Field Value
Source URL
Author Allison Oliver
Data Steward Morice Water Monitoring Trust
Publication Year 2018