Various Applications in Hydrological Tracing

GROUNDWATER CAPTURE/SOURCE

• Delimitation of the capture feeding basin
• Verification that a given point is within the capture basin
• Study of the respective contributions of different water sources

GROUNDWATER PROTECTION ZONE

• Verification of a hydraulic connection between the injection point and the capture site
• Study of transit times and flow velocity
• Designing protection zones

FLOW CONTRIBUTION AREASS

• Delimitation des aires d’alimentation
• Vérification that a given location is within the flow contribution area of a capture site
• Understanding of underground flows

HAZARD ASSESSMENT INCIDENT SIMULATION CONTAMINATED SITES SUSPECTED AREAS

• Study of the infiltration water path
• Verification of proper placement of sampling points downstream from a site

CONTAMINATED SITES SUSPECTED AREAS

• Study of the infiltration water path
• Verification of proper placement of sampling points downstream from a site

DISCHARGES

• Verification of flows beneath existing discharges
• Inspection of infiltration pathways: meteoric waters flow towards designated drains
• Sealing layer integrity check
• Evaluation of sites for new discharges: ex - verifying that a site is outside the capture feeding basin
• Verification of proper location of monitoring points

SURFACE WATER-GROUNDWATER INTERACTION CONTAMINATED SITES SUSPECTED AREAS

• Detection and localization of sections of infiltration or exfiltration from watercourses
• Detection of flows beneath watercourses
• Identification of outlets for closed lakes

DETECTION OF PARASITIC WATERS

• Identification and quantification of the arrival of infiltration waters from a watercourse at a capture site
•Verification of the arrival of rainfall waters from nearby infiltrations at a capture site

DRILLING/PIEZOMETER

• Control of the representativeness of groundwater samples by marking the drilling fluid
•Inspection of sealing plugs separating different capture levels

EXPERTISE IN CASE OF DAMAGES

• Verification of the origin of infiltrating waters in a building

DETERMINATION OF AQUIFER PARAMETERS MODELLING OF GROUNDWATER FLOW

• Determination of hydraulic parameters such as flow velocity and dispersion coefficient
• Calculation of storage volume from the volume of voids allowing flow
• Calibration and validation of flow and mass transport models in solution
• Verification of simulated flow directions compared to observed directions