Groundwater protection

LAU covers facilities for storing, filling and transferring water-hazardous substances; HBV covers facilities for manufacturing, treating and using them. Both require engineered sealing systems to prevent any release from reaching soil and groundwater.

A single-component system (Carbofol^® HDPE with Secutex^® protection) is used for standard exposures. Where particularly aggressive substances are handled, a double-liner system with a leak-monitoring control layer between the two barriers provides additional security and leak detection.

RiStWag governs road construction in water catchment and protection areas. It requires the subgrade to be sealed and targeted construction measures to be taken so that road run-off and spillages cannot contaminate groundwater. Bentofix^® and Carbofol^® provide the compliant sealing barrier.

When soils or construction materials containing environmentally relevant substances are reused in earthworks, the FGSV M TS E guideline requires a sealing barrier beneath them to protect groundwater from leaching. Naue geosynthetics form this certified barrier.

Yes. Carbofol^® and Bentofix^® carry the relevant approvals (including BAM for Carbofol^®), conform to EN ISO 10318 and are supplied with full declarations of performance and conformity documentation for traceable, compliant projects.

In a double-liner system, a drainage/control layer is installed between the primary and secondary barriers. Any leakage through the primary liner is collected and detected in this layer before it can reach the subsoil, enabling early intervention.