Spill Response | WT-SERIES

Water Supply | Overflow / Underflow dam | Spill containment


This spill response equipment combines simplicity, robustness and reliability. It is used to block or dam streams, small rivers or ditches for spill response and also to create water supply from small watercourses. The barrier has been specifically designed with ports or release holes on the lower portion to work as an instant underflow dam. With this feature, the first responders can use the Water-Gate to dam a stream, block a spill and control the release of clean water flow downstream.

The Water-Gate is designed for rapid and easy installation. Maximum retention heights are 21, 28 and 39 inches (53 cm, 71 cm and 1 meter) and units length from 15 to 50 feet (4.6 to 15.2 meter). Being lightweight, it is easily carried by one or two people to remote location. All Water-Gate models conveniently and rapidly attach together with a Velcro system. This gives first responders the latitude to adapt to all types of locations.

Water-Gate’s advantages:

Spill response incidents in shallow water present difficult response recovery conditions. With the Water-Gate, a water course of a few inches in depth is conveniently transformed into a deep and calm response zone. With the implementation of the Water-Gate, skimmers, sorbent booms and vacuum units can be used conveniently with increased operational and cost effectiveness.

The Water-Gate can also be used as an overflow dam for sinking pollutants without affecting its integrity.  Our barrier adapts itself to all types of terrain and river beds following basic instructions. Because of its incredible flexibility, the antipollution dam fits snugly against the river banks and stream bed no matter what the terrain might be. No anchor or pump necessary.

When firefighters or other first responders use the dam for water supply out of small water courses, the overflow will not affect the installation and some release holes can be left open to provide a minimum of stream flow in the habitat.

Types of Applications

HAZMAT Spill | Oil Spill | Underflow dam | Water supply

Main Characteristics

The Water-Gate’s waterproof effectiveness and stability come from the vertical thrust putting pressure on the bottom of the gate.

  • Stream positioning
    Unroll the antipollution barrier directly across the stream.
    Center the containment dam in the stream and make sure that the extremities are brought up on each side of the bank.
    Unfold the first fold.
  • Plunge
    Plunge the barrier at the bottom of the stream, put your feet on top of the tarp and let the water fill the barrier and deploy itself.
  • Ballasting
    If you wish, you may put some rocks taken from the stream as ballast weights.
  • Contain
    Let the antipollution dam fill-up to 3/4 of its retaining height. The water and the pollutants will be trapped in the dam and the pollutants will be concentrated on top.
  • Control the clear water’s debit
    Avoid pollutants over-topping by maintaining a stable height upstream; to do so, open as many release holes as necessary at the bottom of the dam. It’s possible to open and close the release holes while in operation.
  • Remove
    Remove the pollutants with the help of absorbents, booms, skimmers or vacuum.
  • 12 hours Chemical resistance (See chart for details).
  • Mechanical resistance: abrasion and tear resistant fabric / safe stitches.
  • Thermal resistance: +122°F (+50°C) à -40°F (-40°C) without any damages.



Main characteristics of the WT Series:

A – Ultra-strong PVC coated Polyester fabric resistant to abrasion for stream installation.

B – Compact partitions leaving the bib free for pumping water and making a safe access to cross the stream.

C – Polypropylene handles to raise the extremities of the barrier in particular applications.

D – Anti-mining bib to avoid riverbed erosion if overtopping occurs.

E – Heavy duty polypropylene handles to facilitate handling.

 Release holes


1 dans 4


The barrier has 4 times more floor surface than the water being retained, thus 4 times more vertical thrust (or on the ground) than the horizontal thrust allowing proper adhesion. For the water to hold back the water on most surfaces such as asphalt and grass, a 2½ to 1 ratio is usually sufficient for a safe installation therefore, the Water-Gate’s 4 to 1 ratio is much safer and the risk of slipping is unlikely. The wider the barrier, the harder it is to make it slip, we can then conclude that this Water-Gate spill response equipment is 33% safer than required.

  1. It will unfold and fill as the water infiltrates inside the barrier.
  2. The water pressure will completely open the barrier.
  3. The sewn in floater will allow the top part of the barrier to float and follow the motion of the waves as they come.
  4. The accumulated water pressure stabilizes the barrier in place no matter the terrain.

No need to pump water inside.

Available Models


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