Abstracts

294 - The impact of climate change on the sustainability of
municipal water supplies and groundwater / surface water
interactions
Paul Y.S. Chin
Matrix Solutions Inc., Breslau, Ontario, Canada
Dave Belanger
City of Guelph, Guelph, Ontario, Canada
The City of Guelph is one of the largest municipalities in Canada to rely almost entirely
on groundwater for its potable water supply. The municipal supply system currently includes
21 operational groundwater wells and the Arkell Spring Grounds “Glen Collector”
system, which collects shallow groundwater through a series of underground perforated
pipes. To enhance the supply of water into this collection system, the City operates the
Eramosa River intake and an artificial recharge system at the Spring Grounds. Water is
pumped from the Eramosa River into an infiltration pond and trench where it replenishes
groundwater supplies.
The City has recently completed a Tier Three Water Quantity Risk Assessment that assessed
source water sustainability under future water demand, future land use development,
and drought conditions. A watershed-scale hydrologic model (GAWSER) and a regional-scale
groundwater flow model (FEFLOW) were developed for the study and used to
evaluate water budgets under 45 years of historical climate conditions. The drought assessment
used historical conditions as a surrogate to simulate future drought risk.
The impact of potential climate change on the sustainability of municipal supplies has
been assessed using the Tier Three models. Changing flow conditions in the Eramosa
River, and the subsequent impact on the artificial recharge system’s ability to supply
groundwater to the Glen Collector were examined. Groundwater recharge under changing
climate conditions and the effect on groundwater / surface water interactions were also
evaluated. This study provides insights that will assist in the operation and management
of the municipal supplies.
Innovation in the Remediation of
Contaminated Sites 3
Thursday October 29, 13:00 – 14:40
Chair: Jason Gerhard
Room: Schubert
212 - Full Scale Application of In Situ STAR to Treat Residual Coal Tar
Michaye McMaster, Len DeVlaming, Danielle Thorson & Gary Wealthall
Geosyntec Consultants, Guelph, Ontario, Canada
Grant Scholes, Dave Major, & Gavin Grant
Savron Solutions, Guelph, Ontario, Canada
IAH-CNC 2015 WATERLOO CONFERENCE
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