Welcome to the CANadian Watershed Evaluation Tool (CANWET™ - Version 4.2)

INTRODUCTION

CANWETTM (v 4.2) is a GIS-based software suite designed to inform decision making around river basin and watershed management; water supply and wastewater treatment infrastructure; food security; and, climate change adaptation. Its ability to quickly estimate daily water balance, nutrient, erosion sediment, and bacteria loadings from GIS input data allows CANWETTM to serve as a powerful decision support system. 
 

This latest release of CANWETTM is VB.Net database-driven and web-aware, and features an integrated open source GIS environment. Its relative ease of use and ability to take advantage of commonly available spatial data makes it a solid choice over other continuous models with greater data input requirements. This "All-In-One" software suite allows you to begin your project without requiring expensive prerequisite software to use in tandem.
 

Since 2003, CANWETTM has been used for Assimilative Capacity Studies; Watershed and Sub-watershed Studies; Master Drainage Plans; Infrastructure Planning; and, Source Water Protection Studies. Various versions of the GWLF engine that is incorporated into CANWETTM have also been applied in numerous studies worldwide.


KEY FEATURES AND FUNCTIONS OF CANWET 4.2

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CANWETTM (v 4.2) offers an extensive range of features and useful tools including:

  • Daily time-step simulation engine for hydrology, hydraulics and water quality.
  • Integrated and flexible charting and mapping of simulated output.
  • Comprehensive Beneficial Management Practice (BMP) routines.
  • Integrated hydraulic routing of in-stream water quality concentrations and flows.
  • Integrated climate change scenario analysis tools (including climate data).
  • Powerful web-based service for retrieval of useful datasets.
  • Modules to handle loading estimates from septic system and livestock contributions.
  • Routing of point source discharges.
  • Link simulated output back to GIS for map creation.
  • Resources to transform your CANWETTM GIS layers into Google Earth overlays.
  • Detailed Users' Guide and Technical Manual.

GIS Processing

CANWETTM allows the user to quickly and easily generate input data through Geographic Information System (GIS) clipping routines. Data is clipped from GIS vector and grid maps. The clipping routines are used to generate input data for single or multiple basin analyses.

GWLF Simulation Engine

The Generalized Watershed Loading Function (GWLF) is a continuous model based on land use categories. It simulates stream flow, sediment, nutrient (nitrogen and phosphorous), and fecal coliform loadings from catchments, given variable-size source areas (i.e. agricultural, natural, and urban/developed lands).

BMP Functionality

CANWETTM allows for the addition of beneficial management practices (BMPs) by applying area-weighted loading rate reductions for phosphorous, nitrogen, sediment, and animal coliforms for both rural and urban lands. Multiple practices can be added in parallel or in series. It also calculates estimated costs for typical BMP applications based on unit-costing.

DATA ANALYSIS

CANWETTM features several powerful output approaches to suit your needs.

CHARTING TOOLS

  • Multiple data series can be plotted simultaneously with dual axes.
  • Choose from Catchment output, Land use, Stream Routing, and Nutrient Routing dataset categories.
  • Charts can be custom labelled, formatted, and printed.

GRID OUTPUT

  • Grid data can exported in raw format to CSV format and imported to EXCEL for custom analysis.
  • Catchment output can be filtered by date, climate scenario, or theme (e.g. Hydrology, Nutrient Load Contributors, Sediment, Land Use etc.).

STREAM AND NUTRIENT ROUTING

CANWETTM calculates continuous constituent concentrations by reach for use in TMDL and assimilative capacity studies.



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UPCOMING TRAINING SESSIONS

Check this location for future training sessions by Greenland International Consulting Ltd.


Head Office for The Greenland Group

120 Hume Street
Collingwood, ON
Canada  L9Y 1V5

tel:  705.444.8805
fax: 705.444.5482
email: greenland@grnland.com


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Client Testimonials

City of Ottawa

On behalf of the City of Ottawa, we would like to thank Greenland International Consulting Limited, and in particular, Don Moss for his exemplary efforts in his role as Model Keeper for the City of Ottawa… Greenland has achieved a high level of confidence with Senior Staff and City Council as well Conservation authority and the Ontario Ministry of Environment… The City is appreciative of the new Modelling Tool developed by Greenland which will assist the City in conducting timely and efficient development reviews. The City will now be able to test proposed infrastructure with the overall development, determine changing impacts to existing infrastructure as ponds, as well as any changes to the receiving watercourses.

Don’s knowledge, dedication and professional approach over the past five years has been a crucial factor in the success of the project under very challenging circumstances.

Don Herweyer, MCIP, RPP
Program Manager
City of Ottawa

February 11, 2014
 

Credit Valley Conservation

I wanted to take this opportunity to thank you for your work on the Brampton “Pond 10 Floating Islands Research Project”. This project was a “first of its kind” within our watershed.

Greenland was responsible for preparing the design brief for the islands that provided details on the anchoring system design, safety considerations and a strategy for establishing a vegetation community among other things. This was a challenging project given that there was no pre-established process to follow and therefore we were defining the design and implementation process from scratch.

Greenland was always very responsive when issues arose and helped us troubleshoot options to solve the issue. They refined the design brief and assisted CVC with implementing improved anchor designs that have been successful in keeping the islands stable over the past few years even though some extreme weather events.

We were very pleased with the consulting services Greenland provided for this project.

Phil James, P.Eng.
Manager, Watershed Protection and Restoration
Credit Valley Conservation

March 14, 2014
 

University of Guelph

The reappearance of excessive nutrient loading in Lake Erie and the subsequent algae blooms is an extremely complex issue and is quite different in nature than the previous phosphorous loadings in the 1970s. Unlike the issue in the 1970s, there are far more sources adding nutrients to the late and these sources are diverse in nature ranging from rural to urban. In order to understand the nutrient loading, both in the temporal and spatial domains, more complex analytic and predictive tools are required in order to help policy make sound, science based, and defendable solutions.

The University of Guelph is uniquely positioned to help address the issues around Lake Erie with long standing core strengths in both the agricultural sector and the environmental field. In conjunction with our partner, Greenland Consulting Engineers, and their watershed evaluation tool (CANWETTM), we believe that we have the engineering and technology to extrapolate CANWETTM from the watershed level up to the lake basin level and provide decision-making support for the entire Lake Erie basin.

Hussein Abdullah, Ph.D., P. Eng.
Director, School of Engineering
University of Guelph

January, 26 2015
 

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