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Tool T06 · Wellfield Stress Test
Click the map to place pumping wells. Each one creates a cone of depression; when you add enough, the cones overlap and the total drawdown gets much deeper than any single well would cause alone. This is why MLGW has 160+ wells spread across 8 wellfields.
The total drawdown at any point equals the sum of drawdowns from every individual well. The Cooper-Jacob approximation to the Theis equation makes this linear — groundwater flow in confined aquifers is a linear system, so superposition holds exactly.
This tool uses 2D homogeneous-aquifer assumptions. Real wellfields face boundaries (rivers, faults, formation edges) that complicate the picture — which is why MLGW and CAESER maintain MODFLOW models instead of relying on simple superposition.