Finding & Fixing Leaks in a Large Natural Pond

5-year-old natural pond (no liner, no concrete) in low wet area. Leaking after nearby blasting. How to find and fix?

Leak Detection

Visual inspection: Walk perimeter; look for wet spots, erosion, sinkholes.
Dye test: Add non-toxic dye near suspected area; watch for exit.
Water level test: Mark level, turn off inflow, monitor drop rate at sections.

Natural ponds in permeable soil often seep. Blasting may have fractured clay layer. Professional geotechnical assessment recommended for large ponds.

Don't smash ice in winter—shock kills fish.

Pond and Water Gardening: Finding & Fixing a Leak in an Antique Stone Fountain; pH Adjustment for Fish Transfer: Raise Old Pond, Not Lower New; Pond Leak Diagnosis: Liner vs. Waterfall vs. Splash Loss; Leaking Rock Waterfall: Rock Shift, Liner Flap & Low-Cost Fixes; Pond Liner Slit with Water Underneath: Drain Tube Before Patch; Finding a Leak in a Two-Pond System with Stream; Pond Leak: Will Turning Off Waterfall Pump Stop Auto-Fill?; Leaking Pond Liner Seam: Repair or Replace?; Diagnosing a Leaking Pond: Step-by-Step Guide; Finding a Leak in a Figure-8 Pond: Damming Sock at the Narrows

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