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3d Groundwater Articles & Analysis
19 articles found
Client: Grand River Conservation Authority (GRCA): 400 Clyde, Cambridge, ON Contact: Sonja Strynatka, P.Geo, Senior Hydrogeologist Key Personnel: Michael Takeda, Spencer Malott, E.J. Wexler The Brantford Airport wellfield, located 6 kilometers west of the Brantford town centre, services a small population of residential and industrial water users. A single well (Airport Well 1) ...
Client: Lake Simcoe Region Conservation Authority: Ms. Shelly Cuddy, P.Geo., Hydrogeologist, 120 Bayview Pkwy, Box 282, Newmarket, ON L3Y 4X1 (905.895.1281) Key Personnel: E.J. Wexler, D. Kassenaar The identification of significant groundwater recharge areas (SGRAs) was an important element of recent Source Water Protection initiatives in Ontario. Under SWP, the term “significant ...
Client: Central Lake Ontario Conservation Authority: Ms. Gail Soo Chan, P.Geo., Director – Groundwater Resources, 100 Whiting Avenue, Oshawa, ON L1H 3T3 (905-579-0411 x139) Key Personnel: E.J. Wexler The identification of significant groundwater recharge areas was a key element of recent Source Water Protection initiatives in Ontario. Under SWP, the term “significant ...
Client: David Ketcheson, Azimuth Environmental Consulting, 85 Bayfield Street, Suite 400, Barrie Ontario L4M 3A7 tel: (705) 721-8451 Key Personnel: E.J. Wexler, D. Kassenaar A groundwater flow model was developed for the proposed Reeb Quarry and surrounding area. The property is located south of the Wainfleet Bog and west of the City of Port Colborne. An active quarry and a rehabilitated quarry ...
Client: Tom Guoth, GHD Ltd. (formerly Conestoga-Rovers & Associates) Ultimate Client: Regional Municipality of York Key Personnel: D. Kassenaar, E.J. Wexler, J. Ford, M. Takeda Earthfx developed a 3-dimensional groundwater flow model to analyze the impacts of construction dewatering for the Southeast Collector (SEC) Trunk Sewer on groundwater and stream baseflow. The work was done in support ...
Project Description The Ernest Henry Mine is a large open pit copper mine with deeper mineralization that was targeted for underground mining. A Feasibility Study (FS) was conducted to evaluate the potential for mining of the underground component by sublevel‐caving methods. The FS required the consideration of groundwater, including an evaluation of the expected inflows to the access ...
Abstract: A 3D groundwater flow model was constructed using MINEDW [1] to simulate pore pressure at the Chuquicamata open pit mine slope in Chile. Three main factors required the implementation of a 3D model for the prediction of pore pressures: (1) discrete zones of recharge in the gravel zone lead to the non-uniform flow field; (2) the ...
Abstract: The challenges of mining economically have never been greater than under current global financial conditions. The costs and efficiency of dewatering are particularly important at De Beers Canada’s Victor diamond mine in northern Ontario where: the bottom of the water-bearing carbonate country rocks is near the bottom of the planned pit, limiting the available drawdown in ...
Project Description Karowe Mine, located approximately 16 kilometers (km) southwest of the town of Letlhakane, is a diamond mine where the second largest diamond ever found on record, with a weight of 1,111 carats, was discovered. This project involved simulating mine dewatering and excavation to evaluate future dewatering requirements, as well as providing guidance for future monitoring borehole ...
A Willowstick geophysical investigation was employed to help identify and characterize groundwater flow. The problem Traditional methods for characterizing seepage flow can be both expensive and time consuming. 0Willowstick Technologies was contracted to help the client identify the seepage flow paths. ...
This paper analyzes the impacts of climate change and human pressures on Yazd-Ardakan aquifer using the Hadley Centre Coupled Model, version 3 (HADCM3) circulation Model and A2 emission scenario. Water levels in the study aquifer were simulated using three-dimensional finite-difference groundwater model (MODFLOW 2000) with GMS 8.3 as pre- and postprocessing software. Input for groundwater ...
The main objective of this study is to evaluate the potential impact of Grand Ethiopian Renaissance Dam (GERD) and pumping scenarios on groundwater level by a three-dimensional groundwater model of the Nile Delta using MODFLOW software. The Nile Delta has highly intensive irrigation canal networks that share yearly about 35.5 km3 of water. In this study, an integrated three-dimensional ...
Groundwater infiltration through cracked sewer pipes has caused significant economic losses. This paper presents a three-dimensional analytical expression for calculating the steady-state groundwater infiltration rate into sewer systems. As an extension of the previously developed two-dimensional model by the author, this new model can be used to simulate the infiltration through an orifice ...
The use of fertilizers in agriculture in Egypt, especially nitrogen, has increased significantly in the last decade, resulting in nonpoint contamination of the groundwater resources. This study investigated the effect of using nitrogen fertilizer on groundwater contamination with nitrate in the central southern part of the Nile Delta. NO3− concentrations in shallow groundwater were assessed ...
This study presents the first attempt to link the multi-algorithm genetically adaptive search method (AMALGAM) with a groundwater model to define pumping rates within a well distributed set of Pareto solutions. The pumping rates along with three minimization objectives, i.e. minimizing shortage affected by the failure to supply, modified shortage index and minimization of extent of drawdown ...
Challenge Groundwater impact was discovered at the bedrock surface off-site and the client needed to quickly be able to access a long history of site data and develop a conceptual site model. ...
The sophisticated research and management problems of the Estonian water environment are considered by means of holistic modelling. The model elaborated is based on the computer code Visual MODFLOW Classic. The model encompasses the entire Estonian Artesian Basin (EAB) and the border districts of Russia and Latvia. It involves all main aquifers and aquitards on an area of 88,000 km2. The main ...
Moreover, the results indicate that numerical model was capable of predicting the bioremediation process and supporting decisions of groundwater remediation.Keywords: 3D modelling, environmental pollution, physical modelling, numerical modelling, simulation, bioremediation, subsurface, petroleum contamination, benzene transport, groundwater ...
ABSTRACT This paper summarizes the development of a remedial system designed to hydraulically contain and ultimately reduce a plume consisting of primarily 1,1,2,2-tetrachloroethane (1,1,2,2-TeCA). The system consists of groundwater circulating wells or extraction wells located in the core of the 1,1,2,2-TeCA plume to provide active source control, combined with monitored ...