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Green tanker truck parked at a modern industrial facility with large metal storage tanks and reflective water basins at sunset.

Sealing systems in groundwater protection: installation by a certified WHG specialist

Sealing systems in groundwater protection are impermeable geomembrane barriers installed around tanks, tank farms and warehouse floors to stop water-hazardous substances from reaching soil and groundwater.

Naue supplies and installs these secondary-containment systems as a TÜV Nord-certified WHG specialist company (Fachbetrieb) in accordance with § 62 AwSV, holding the AK GWS monitoring mark.

Groundwater protection is a key responsibility in construction and industrial operations. Effective installation of sealing systems prevents harmful substances from entering the groundwater. As a specialist installer, Naue offers sealing solutions for tanks, tank farms and industrial warehouses, using Carbofol® geomembranes and full seam testing.

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At a glance

  • Service: Installation of geomembrane sealing systems in civil engineering
  • Applications: Stormwater retention basins · Hydropower canals (headrace channels) · M TS E earthworks
  • Material: Carbofol® HDPE geomembrane, welded on site
  • Certification: TÜV Nord specialist company (§ 62 AwSV); welders certified to DVS-2212
  • Quality assurance: 100% seam testing (applicable part of DVS 2225); weld log, QA records and as-built plan
Excavator installing a white Secutex® geotextile liner in a large, stormwater retention basin at a construction site surrounded by trees.
Excavator installing a white Secutex® geotextile liner in a large, stormwater retention basin at a construction site surrounded by trees.

Sealing of stormwater retention basins

What is a stormwater retention basin?

A stormwater retention basin is a facility that temporarily stores excess rainwater and releases it in a controlled manner. These basins prevent flooding and regulate water runoff, particularly in highly paved urban areas, and are an important component of flood protection and water management.

Why is sealing crucial?

Sealing ensures the buffering capacity and structural integrity of the basin. Although rainwater is usually not heavily contaminated, a sealing system prevents infiltration into the groundwater and ensures that water is retained and discharged in a controlled manner — securing the functionality and longevity of the basin.

Workers install large Carbofol® geomembrane liners along the sloped concrete banks of an irrigation canal using floating platforms and scaffolding.
Workers install large Carbofol® geomembrane liners along the sloped concrete banks of an irrigation canal using floating platforms and scaffolding.

Sealing of hydropower canals

What is a hydropower canal?

A hydropower canal, also known as a headrace canal, is an artificial waterway that channels water from a river or reservoir to a turbine in a hydropower plant. These canals are designed to transport large volumes of water with minimal energy loss and are a key component of hydropower plant infrastructure for efficient energy generation.

Why is sealing crucial?

Sealing prevents water loss through seepage and maintains the structural integrity of the canal. Without effective sealing, erosion, material fatigue and significant efficiency losses can occur. A reliable sealing system keeps water flowing unobstructed to the turbine, maximising the performance and lifespan of the plant.

Aerial view of a large M T S E construction site with excavators moving earth, Bentofix® GCL rolls, and building materials arranged near the center.
Aerial view of a large M T S E construction site with excavators moving earth, Bentofix® GCL rolls, and building materials arranged near the center.

Sealing of M TS E applications

What does M TS E mean?

M TS E stands for the German guideline on construction methods for technical safety measures when using soils and construction materials with environmentally relevant substances in earthworks. It defines methods that allow such materials to be used safely while preventing harmful substances from entering the environment.

Why is sealing crucial?

Sealing prevents the spread of contaminants and protects the environment and groundwater. Insufficient sealing can cause significant environmental damage; an effective sealing layer safely contains the environmentally relevant soils and construction materials.

Why should you choose Naue as your expert in waterproofing technology for civil engineering?

Why choose Naue as your installation expert in civil engineering?

  • Experience and expertise: extensive experience in the installation and sealing of civil-engineering structures; active in sealing technology since the 1970s.
  • Proven materials: durable Carbofol® HDPE geomembranes, welded on site for a long service life.
  • Certified quality: TÜV Nord specialist company (§ 62 AwSV); welders certified to DVS-2212.
  • Environmental performance: sealing systems help prevent contaminants from reaching soil and groundwater; Environmental Product Declarations (EPDs) are available for Carbofol®.
  • Comprehensive service: from planning and material selection to installation — complete service from a single source.

What are the advantages of installation by Naue?

  • Safety and protection: a reliable sealing system protects the structure and the surrounding environment from water damage.
  • Long-term cost savings: durable sealing solutions reduce maintenance and repair costs over the design life.
  • High efficiency: optimal performance of the sealed structure, whether basin, canal or earthwork.
  • Adaptability: customised solutions tailored to the specific requirements of your project.
  • Documented quality: full weld documentation — weld log, seam-test records (DVS 2225) and an as-built plan for each project.

Let’s discuss your project!

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Frequently asked questions

Naue installs geomembrane sealing systems for stormwater retention basins, hydropower (headrace) canals and M TS E earthworks. The material is a Carbofol® HDPE geomembrane, installed by a certified specialist company (§ 62 AwSV).

A stormwater retention basin temporarily stores excess rainwater and releases it in a controlled manner. It prevents flooding and regulates runoff, especially in paved urban areas, and is an important component of flood protection.

A sealing system prevents rainwater from infiltrating into the groundwater, maintains the basin’s buffering capacity and structural integrity, and ensures the water is discharged in a controlled manner.

A hydropower canal channels water from a river or reservoir to a turbine with minimal energy loss. Sealing prevents seepage losses, erosion and material fatigue, keeping the canal efficient over its service life.

M TS E is the German guideline on construction methods for technical safety measures when using soils and construction materials with environmentally relevant substances in earthworks. A geomembrane sealing layer prevents contaminants from entering the environment.

Yes. The installer must be a certified specialist company (Fachbetrieb) in accordance with § 62 AwSV, and the geomembrane must be BAM-approved. Naue holds this certification.

Naue installs Carbofol® HDPE geomembranes, joined on site by DVS-2212-certified welders using thermal wedge welding. Every seam is tested (channel pressure test under the applicable part of DVS 2225) before the liner is covered.

Yes. Naue operates internationally; applicable local standards and certification equivalences are reviewed at the project planning stage.