Begin with the pond's history, approximate water loss, and water supply. A new leak in a pond that held water calls for a different investigation from a pond that never filled. Compare weather and inflow with observed loss, then evaluate soils, construction, and structural features. Staff assistance and self-service are both available from the start.
The useful question is what will allow this pond or lake to meet its owner's goals. That can mean repairing a discrete defect, reducing seepage through soil, improving construction, managing inflow, or combining several measures. A generic product choice cannot resolve every cause of water loss.
Choose where to begin
For an existing pond, start with the leak-repair guide. For a new pond, start with the construction guide. The technical reference provides deeper explanations and a reservoir-operations branch.
Use the tools alongside your observations
The water-balance map compares regional rainfall and evaporation over recent periods. Watershed runoff, groundwater, pumping, withdrawals, and overflow require additional accounting for an individual pond. The soil-analysis tool helps investigate mapped soil conditions; it does not show exactly what a contractor placed in an embankment.
Estimates are enough to begin. A soil report and repeated water-level readings are optional starting aids. You can contact the team before, during, or after using the tools.
Download a guide
Homeowner Pond Leak Guide — PDF
Construction Planning and Inspection — PDF
Pond and Lake Sealing Quick Reference — PDF
Provider Assessment Worksheet — PDF
Compare treatment approaches
Sodium bentonite, Soilfloc polymer treatment, manufactured liners, native-soil compaction, and localized structural repairs solve different problems. Compare the full installed work and the method of verifying results.
For draining, excavation, or dam work, also consult the pond permits and regulations resources and the requirements applicable to the property.