MODFLOW-USG / USG-Transport Hydrogeological Workstation
v2.8.0 IMS Engine
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Geometry & Paint
Physics & Boundaries
Mesh Discretization
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Root Model (2D Domain)
Geometry (1000m × 666m)
Materials & K-Zones
GWF Groundwater Flow
Transport (PFAS Precursors)
CLN Conduit Networks
Mesh (Unstructured CVFD)
Study (Transient Solver)
Node Settings
Geological Material Preset:
Custom Parameters
Clean Gravel (K=80m/d, ne=0.32)
Coarse Sand (K=25m/d, ne=0.25)
Silty Sand (K=2.5m/d, ne=0.18)
Clay / Till (K=0.1m/d, ne=0.10)
Fractured Granite (K=12m/d, ne=0.12)
Brush Radius (Cells):
1 × 1
Specified Head Value H (m):
102.0
Pumping Rate Q (m³/d):
60
Longitudinal Disp. α_L (m):
15.0
PFAS Precursor Decay λ (/d):
0.03
REGIONAL RECHARGE ZONE & AGRICULTURAL RUNOFF AREA (TOP BOUNDARY)
INLAND MOUNTAIN FOOT-HILLS — HIGH HEAD H_WEST
REGIONAL RIVER BASIN & ESTUARY — LOW HEAD H_EAST
IMPERMEABLE CRYSTALLINE BASEMENT (NO-FLOW NEUMANN BOUNDARY)
Tool: Inspect Cell Properties
N
Scale: 1:2500 Metric
0 100 m
Cell Inspector
Cell Index (I, J):
(30, 20)
World Coords (X, Y):
450.0, 300.0 m
Hydraulic Head (h):
98.42 m
Seepage Velocity (v):
0.45 m/d
Conductivity Kx:
25.0 m/d
Cell Type / BC:
Active Matrix
Virtual Probe Log
Probe Location:
Click Probe Tool
Head h(t):
-- m
PFAS Precursor:
-- µg/L
Net Volumetric Flux:
+0.12 m³/d
Concentration Legend
0.0 Clean
Daughter
Precursor
Position:
X: 0.0m, Y: 0.0m
Solver:
CONVERGED (IMS Residual < 1e-6)
Stress Time:
0.0 Days