Training – LFH At-Grade Field Training Workshop


This practical training workshop is a great opportunity to get hands-on experience building an LFH At-Grade Onsite Wastewater Treatment System.

The expected outcomes for this training are listed below:

  • Understand the basic principles of how an LFH At-Grade works – secondary treatment and dispersal horizontally through the LFH layer. Apply soil evaluation information. Understand ground water mounding.
  • Learn LFH At-Grade design configurations and materials.
  • Basic knowledge of utilizing topography of installation site.
  • Know factors in locating the LFH At-Grade – slope vs. level, clearance separations, vertical separations, appropriate wood chip cover material.
  • Ability to bed tank properly and excavate delivery line.
  • Ability to build pressure distribution laterals for distribution system, orientation of orifices, spacing, etc.
  • Ability to assist with construction of LFH At-Grade, pressure distribution system, chamber placement, wood chip cover placement and all other aspects of LFH At-Grade construction.
  • This will be a complete LFH At-Grade installation in the field.

Please contact the AOWMA office with any questions you may have at 780-489-7471 or toll free at
1-877-489-7471. We look forward to seeing you out in the field.

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