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(905) 238-5242

(905) 238-5242


Well Caps from Waterra

Waterra - Well Caps

Waterra sells Well Caps to protect your well head. Piezometers/ monitoring wells need to be sealed from tampering and other possible contamination. Waterra offers the EcoPlug and Torquer line of recycled plastic, lockable well caps. They are available in non-vented and vented for Vapour Sampling. Sizes from 1 inch to 6 inch.

Lockable Well Caps

The center-locking mechanism allows a lock to be secured in a variety of positions offering more flexibility in applications with limited space, tamper-proof well cap.

Size Options From 1 to 6 inches

This EcoPlug’s™ well cap is available for 1, 2 and 4 inch monitoring wells.

The Koby Environmental Well Caps are available for 1.5, 3 and 6 inch monitoring wells.

Gripping Power

These Well Caps have large sealing gaskets. This makes for superior well security due to the large surface area contact between its watertight rubber gasket and the well inner wall casing


  • chemical and temperature resistant properties
  • tethering attachment at base for a variety of instruments
  • wing nut design with recessed grip allows easy manipulation
  • high visibility safety colour
  • no metal parts

Let’s get started...

Waterra Words of Wisdom

  • You should not leave a well unprotected.
  • Well caps are sized to match Schedule 40 Pipe sizes
  • These well caps are lockable to ensure security
  • The vented Well Caps provide a low-cost flexibility to collect further data
  • Not sure? Call us or one of our fine distributors

Non-Vented Well Caps

Recycled Composite Glass Polymer

The EcoPlug™ is manufactured from a recycled composite glass filled polymer that will not corrode. The superior materials used in the manufacturing of this product will withstand repeated use (and abuse) over many years.

Engineering Grade Polymer

Koby Environmental Well Caps are manufactured from an engineering grade polymer blend commonly used to replace steel gears in industry, resistant to most chemicals, unaffected by freezing or high temperatures.

High-tech liquid tight seamless dual rubber gasket.

Non-vented well caps

1" Well Cap 1.5" Well Cap 2" Well Cap 3" Well Cap 4" Well Cap 6" Well Cap
EcoPlug-1E WEP-1.5EcoPlug-2E WEP-3EcoPlug-4E WEP-6

Vented Well Caps

Headspace Vapour Sampling Made Easy

We’ve modified the EcoPlugs to produce the Waterra Vapour Sampling EcoPlug™. This specialized well cap uses a stainless steel valve which allows you to extract a sample of the trapped headspace vapours.

Pressure tested to 20 PSI, these well caps prevent the loss of well gasses to the atmosphere. The Sample Port Adapter allows you to extract the sample without removing the cap from the well. The Sample Port Adapter can be attached to a peristaltic pump in order to draw out even more of the trapped headspace gasses.

Vapour sampling well caps - vented

1" Well Cap Vented 1.5" Well Cap Vented 2" Well Cap Vented 3" Well Cap Vented 4" Well Cap Vented 6" Well Cap Vented
EcoPlug-1VCE WEP-1.5VCEcoPlug-2VCE WEP-3VCEcoPlug-4VCE WEP-6VC

You May Also Need

Monument Casing

Waterra Vapour Port Adapter

Waterra Vapour Port Adapter

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