The Problem
Homeowner had muddy area in backyard that appeared in dry weather. Irrigation system off. Suspected underground water line leak but didn't want to trench through their $15K landscaped yard.
Detection Method
Acoustic correlation from the water meter to the house entry identified a leak at a compression coupling 4m from the house, under a garden bed.
Results
Single 1m x 1m excavation at the exact coupling. Garden bed preserved. Coupling replaced. $15K landscaping preserved.