Landfill Closure & Cover Fast Curing Soil Matrix Amendment
in Washington

Diverse topography and massive annual rain demand adaptable erosion control. You must lay robust drainage and geogrid reinforcement to stabilize glacial till subsoil. Spray flexible growth mediums (FGM) mixed with deep-rooted native seed to stabilize slopes and stop sediment from dumping into critical watersheds.

Operational Constraints for Landfill Closure

Daily and intermediate landfill covers face severe wind erosion, off-gassing, and strict regulatory leachate controls. Loose soils blow offsite or wash into drainage systems, instantly triggering compliance violations. The objective is to seal the surface without adding excessive weight or moisture to the waste mass. You need a high-viscosity hydraulic hydro-cap that forms a durable crust over the refuse. The polymer must lock in dust and aggressively repel rainwater to prevent it from infiltrating the cell and increasing the site's expensive leachate treatment volume.

Meeting WSDOT Standard Specifications for Road, Bridge, and Municipal Construction, Section 8-01 (Erosion Control) Specifications

OHRA GreenTack anchors seed and mulch directly to the subsoil, providing the rain-fast shear strength required by WSDOT Standard Specifications for Road, Bridge, and Municipal Construction, Section 8-01 (Erosion Control). Its microplastic-free botanical hydrocolloid network forms a 3D matrix. It resists high-velocity storm runoff and keeps synthetic toxins out of the watershed.

The matrix prevents "fisheye" lumping inside your hydroseeder pump. This stops pump cavitation and reduces friction head loss. You maximize your tank's spray payload and eliminate constant agitation adjustments on the job site.