AAE Tech Services Inc.

Water Quality Monitoring

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Examination of water quality is an important component of any biological study.  There is no single or simple measure of water quality, and water is often tested for several characteristics, natural substances and contaminants.  Water quality analyses fall into three broad categories:

  • Physical characteristics, such as temperature, colour, suspended solids and turbidity;
  • Chemical characteristics, such as nutrients, minerals, metals, oxygen, organic compounds and a wide range of pollutants (i.e. pesticides, hydrocarbons, pharmaceuticals, PCBs); and
  • Biological characteristics, such as the types and quantities of bacteria, protozoan parasites, algae, invertebrates, plants and other biota.                                                                         

Representative Studies

Swan Creek Watershed Riparian and Habitat Assessment

Testing water quality within the various drains  of Swan Creek Watershed was an important component of the project. Turbidity, dissolved oxygen, conductivity, temperature, pH, total dissolved phosphorus, fecal coliform levels and numerous other water quality parameters were assessed.  A benthic invertebrate assessment was also conducted to identify drains with poor water quality conditions. 

 

Lafarge Steep Rock Quarry Fish and Habitat Assessment

The RM of Grahamdale contracted AAE Tech Services to conduct a fish and habitat assessment on the Lafarge Steep Rock Quarry to provide recommendations on how to develop the quarry into a sustainable catch and release fishery.  Two of the main components of the project were to determine nutrient levels and to assess dissolved oxygen levels both in the summer and winter months.  Knowing both of these parameters was necessary to help predict and provide recommendations for developing the quarry into a sustainable fishery.    

   

Impacts of Wild Rice on Native Invertebrate and Fish Communities

Water quality was assessed within littoral zones of lakes seeded with wild rice to determine if a possible build up of nutrients within the bays could lead to winter fish kills.  The hypothesis tested was that an increase in microbial activity as a result of increased nutrients would result in a reduction of dissolved  oxygen levels within the water column of wild rice bays during winter months.  To evaluate this hypothesis, all water quality parameters were assessed.  

 

Algal Outbreak Wellman Lake

In the summer of 2009, Wellman Lake, MB experienced large algal blooms within the water column.  AAE Tech Services Inc. collected samples and had them analyzed to determine the type and species of algae present within the lake.  Information was shared with the Cottage Association and Provincal Fisheries Staff to help develop a management strategy to combat the problem.  

 

Dog Lake Watershed Riparian and Aquatic Assessment

Nutrient loading is a concern in a number of watersheds within the interlake region of Manitoba.  AAE Tech Services collected water samples around the Dog Lake watershed to collect baseline data.  Water quality parameters examined included Turbidity, dissolved oxygen, conductivity, pH, temperature, Ammonia, Chlorophyll a, Fecal Coliform, Total Phosphorus, Total Dissolved Phosphorus, Total Dissolved Solids, and Nitrate+Nitrite-N, Total Nitrogen. 

  

North Basin Lake Manitoba Tributaries Fisheries Assessment

Testing water quality within the various drains  in the RM of Grahamdale was an important component of the project.   Turbidity, dissolved oxygen, conductivity, temperature, pH, total dissolved phosphorus, fecal coliform levels and numerous other water quality parameters were assessed.  A benthic invertebrate assessment was also conducted to identify drains with poor water quality conditions. 

 

Whiteshell River Water Quality Assessment

In the early 1990's, restoration efforts were put forth within the Whiteshell River to improve fish habitat for trout and other fish species  by creating a series of riffle/pool sequences.  During the study, it became apparent that water quality issues needed to be addressed.  Large algal blooms were observed within the river.  Two issues created this problem. First the enhancement reach was located downstream of the Whiteshell Hatchery where nutrient loading was a common occurrence.  Secondly, the man made control structure located upstream was restricting flow within the river.  These two factors together created unfavorable conditions for the fish communities within the enhanced reaches.  Results of the study helped to allow management to correct the issues documented during the assessment. 


  

 

 


Additional Projects

  • La Salle Redboine Conservation District Water Sampling
  • Plum River Bridge Crossing Culvert and Concrete Repair Water Quality Monitoring
  • Spawning Spur Installation Environmental Monitoring (Hugh Munro Construction Ltd.)
  • Red River Water Quality Monitoring
  • Line Lowering at Mary Lake Tributary in Ontario (TransCanada Pipeline Ltd.)
  • Harmony Creek Environmental Monitoring (TransCanada Pipeline Ltd.)
  • Pigeon River Bridge Construction Environmental Monitoring (Innovative Civil Constructors Inc.)