Liners help minimize contamination risks during heavy winter rainfall by creating a stable barrier that keeps stored manure or wastewater from seeping into the ground or overflowing into nearby drainage paths. When frozen soils limit absorption, rainwater often runs across the surface rather than soaking in, which raises the chance that unlined structures will leak or lose material through small cracks.
A properly installed liner prevents this movement and maintains the lagoon’s full containment even when water levels change quickly. By keeping nutrients confined, liners reduce the likelihood that rainfall-driven runoff will pick up pollutants and carry them toward ditches, streams, or wetlands. This protection is especially important in winter, when sudden storms can overwhelm storage systems already stressed by freezing conditions.
