Loading Estimation Workshop
The Sharing Loading Estimation Experiences Workshop took place on January 20, 2015, in Guelph, Ontario.
The purpose of the workshop was to bring together people with varying levels of sediment and nutrient loading estimation experience in order to share relevant knowledge.
Sediment or nutrient loading is the mass of sediment or a nutrient that enters a waterbody, or passes a cross-section of a stream, in a specific period of time (e.g., a year, season, or high-flow event).
The workshop was attended by 46 people, who represented 17 organizations.
The day’s agenda included presentations on a current initiative in Ontario to update and improve loading estimates for tributaries of the Great Lakes, lessons from historical loading estimations in Ontario, and methods that have been used more recently for estimating loads in Ontario, as well as a discussion about how to approach loading estimations for two case studies.
Please find below links to the workshop proceedings and presentations, and to other documents about loadings.
Introduction to the Multi-Watershed Nutrient Study – Mohamed Mohamed, Surface Water Scientist, Ontario Ministry of the Environment and Climate Change
Lessons from loads – Trevor Dickinson, Professor Emeritus, University of Guelph
An empirically-based regression method for estimating total phosphorus loads to Hamilton Harbour from the four tributary inputs – Tanya Long, Environmental Scientist, Ontario Ministry of the Environment and Climate Change
Regression-based loading estimates applied in small, agricultural watersheds – Mohamed Mohamed, Surface Water Scientist, Ontario Ministry of the Environment and Climate Change
City of Toronto Wet Weather Flow Monitoring Network: Baseline conditions 2008 to 2011 – Derek Smith, Surface Water Field Coordinator, Ontario Ministry of the Environment and Climate Change
Lake Erie loadings estimations in support of the Great Lakes Nutrient Initiative – Alice Dove, Environmental Scientist, Environment Canada
Optimization of water quality sampling and load estimation modeling in the Lake Simcoe watershed: Evaluations using a continuous phosphorus dataset – Eavan O’Connor, Water Quality Specialist, Lake Simcoe Region Conservation Authority
Case Study #1: Predicting blue-green algae blooms at a Wheatley drinking water intake in western Lake Erie – Chitra Gowda, Source Water Protection Lead, Conservation Ontario; Katie Stammler, Water Quality Scientist and Source Water Protection Project Manager, Essex Region Conservation Authority
Case Study #2: Evaluating stewardship actions for Healthy Lake Huron – Mari Veliz, Healthy Watersheds Supervisor, Ausable Bayfield Conservation Authority
Introductory Loading Documents
Load estimation techniques – United States Environmental Protection Agency 2003
Other Relevant Documents
Comparison of load estimation methods and their associated error – Marsh and Waters 2009