Integrated Science and Watershed Management System (ISWMS™)

Welcome to the Home Page for the “Integrated Science and Watershed Management System”. This site provides updates about our ecosystem database and decision support analytical tool.

The Integrated Science and Watershed Management System (ISWMS™) was originally developed by Greenland in 2003 as a windows-based Decision Support System (DSS) for stormwater management; hydrological (continuous rainfall and design storm events) modeling; and, Canadian climate flood forecasting capabilities. The ultimate DSS ‘vision’ also included (depending upon the availability of certified open data and timely evolution of new operational platforms) other science-based analytical tools and integration with current Internet and GIS technologies. The ultimate ISWMS™ development goal is to include multi-functional stormwater management; hydrologic; water quality; nutrient trading; hydraulic and contaminant transport; flood forecasting; climate change impact; instream biological health assessment; and, Best Management Practice (BMP) analysis capabilities for river and lake basin management programs and to provide accurate information for water supply, wastewater treatment and flood control infrastructure planning and design initiatives. Greenland is well on its way to achieving the DSS vision!   

In 2003, Greenland was retained to develop the initial version of ISWMS™ as a flood forecasting tool for the 3,200km² Nottawasaga Valley Watershed, located north of Toronto (Canada). It was also used to prepare Subwatershed Management Plans in Southern Ontario. In 2005, Greenland began work on the next ISWMS™ phases, including, an ESRI-GIS operational platform that was integrated with a daily water balance, nutrient and sediment loading model (called CANWET™) and which would also be maintained by the Greenland Group. In 2006, the ISWMS™ program added new technical support partners affiliated with Canadian and U.S. universities. These independent scientists would later assist Greenland as a “science advisory team” for future software phases. The science advisory team has included faculty and researchers from the University of Guelph, University of Waterloo, University of Victoria and Trent University (in Canada), and a U.S. team affiliated with Penn State University.

A.     Completed Phases (2003 - 2016) by the Greenland Group

  • Flood Warning Data Management
 (NOTE: Completed as part-of the original ISWMS™(v.1) phase and being updated further with other partners)
  • Flood Forecasting and Flood Damage Assessments
(NOTE: Completed as part-of the original ISWMS™ (v.1) phase and being updated further with other partners)
  • Hydrologic Analysis for Watershed Planning and Water Resources Design
(NOTE: Completed as part-of the original ISWMS™ (v.1) phase and being updated further with other partners)
  • Integrated Water Balance and Nutrient / Sediment / Pathogen / Bacteria Loadings
(NOTE: Completed as part-of the CANWET™ (v.1 through 4) phases)
  • Groundwater (Shallow System) Modeling
(NOTE: Completed as part-of the CANWET™ (v.1 through 4) phases)
  • Predictive Modeling of Urban and Rural BMP Effectiveness (Incl. Cost-Benefit Analysis)
(NOTE: Completed as part-of the CANWET™ (v.1 through 4) phases)
  • Predictive Modeling of Urban Low Impact Development (LID) Technologies
(NOTE: Completed as part-of the CANWET™ (v.4) phase)
  • GIS (Open Source) Operational Platform
(NOTE: Completed as part-of the CANWET™(v.4) phase)
  • Canadian Climate Change Impact Modeling
(NOTE: Completed as part-of the CANWET™(v.4) phase)
  • Instream Assimilative Capacity Modeling (Incl. Temperature, Dissolved Oxygen and BOD)
(NOTE: Completed as part-of the CANWET™(v.4) phase)
  • Rainfall-Snowmelt and Canadian Climate Change Impact Tool
(NOTE: Completed in 2013 as part-of the latest ISWMS™ phase)
  • Web-based Viewing and GIS (Open Source) Operational Platform
(NOTE: Completed for CANWET™ (v.5) phase)
B.  Current and Proposed Phases (Greenland Group and Other Partners)
  • Watershed Health Database (Canada) and Cumulative Stress Assessment Tool
(NOTE: Initiated in 2015 and includes the integration of “THREATS™”
(or “The Healthy River Ecosystem AssessmenT System”)).
  • Integrated Flood Hazard Identifications and Flood Plain Mapping (Proposed in 2016/17)
  • Watershed Nutrient Trading and Offsetting Management Tool (Proposed in 2016/17)
  • Integrated Web-Open Data and Ecosystem Services Platform (Proposed in 2016/17)
  • Lake Capacity Modeling Tool (Proposed in 2017/18)
  • Low Impact Development Platform (Proposed in 2017/2018)

Since 2003, ISWMS™ and key components (incl. CANWET™) have been used by the Greenland Group for many public sector, public-private partnership, land development and natural resources projects. The projects were also undertaken by qualified Greenland professional engineers and scientists and included:

  • The international award-winning Lake Simcoe Protection Plan (Canada) that was prepared by the Province of Ontario with local First Nations and other partners;
  • Assessing water use stresses within the 15,000 km² Trent-Severn Rivers Basin (Canada) and as part-of a multiple partner Source Water Protection Program;
  • Watershed characterizations and water budget assessments for Source Water Protection Projects by Ontario’s conservation authorities and other stakeholders;
  • Urban growth impact assessments (i.e. water supply, wastewater treatment and master drainage planning focus) and identification of viable infrastructure servicing solutions;
  • Evaluation of existing and future nutrient loads with mitigative options and using an ecosystem target and cost-benefit approach for priority catchments in the Lake Erie and Lake Winnipeg Basin; and,
  • Developing new stormwater management, master drainage planning, flood mitigation and watercourse crossing design standards that had regard for regional climate change factors.   

In 2013, the Greenland Group expanded its software team to include internationally renowned industry partners from Canada, United States and Europe. Thank-you for your interest in the Integrated Science and Watershed Management System (ISWMS™) by the Greenland Group.

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Client Testimonials

Township of Adjala-Tosorontio

As Chief Administrative Officer for the Township of Adjala-Tosorontio, I would like to commend Greenland on their successful completion of the Everett Secondary Plan Master Servicing Plan and Class Environmental Assessment.
The level of service and timely delivery of all reports, analyses and correspondence was greatly appreciated by Township staff. Greenland’s innovative solutions and prompt responses to issues raised by the Town Staff Approvals Agencies and the affected public throughout the EA Process were very important, and we look forward to working with your team on future projects.

To that end, our team at the Township of Adjala-Tosorontio would be pleased to provide references for your firm on similar projects in future

Eric Wargel
Chief Administrative Officer
The Corporation of the Township of Adjala-Tosorontio

April 16, 2013

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


The Greenland Group (Greenland) was introduced to Communitech in 2013. This letter is to acknowledge the importance of this proactive joint venture and to indicate our strong interest in future project partnerships with Greenland and other network members.

Greenland is now supporting other joint initiatives with Communitech. These leading-edge information technology partners will include other private sector members with the Communitech network, as well as Ontario government agencies and First Nation communities. These projects are intended to develop commercialized products and services involving the Greenland Group and other Communitech partners and to enable new Canada-wide related collaborations.

Mark, if any your prospective clients or contacts have questions regarding our collaborative efforts to date, ongoing discussions and project leveraging capabilities, the Communitech team would be more than happy to help.

We look forward to our continued strong collaboration with Greenland.

Iain Klugman

February 19, 2015

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