Leadership has experience working with many different organizations, in many different industries
L4H team members have performed work for the mentioned client/customers, but L4H Trenching has not to date.
Railroad
- BNSF
- Canadian Pacific
Oil Sands
- Suncor
- Syncrude
- Shell
Contractors
- ASI Construction
- NorthStar Environmental Services
- Keller
- Dominion Energy
- Compass Environmental
- Exxon Mobile
- BP
- Husky Energy
- NASA
- Southern Company
- US Air Force
- Hayward Baker
- Moretrench Industrial
- Northern Pipeline
Energy Companies
- Dominion Energy
- Exxon Mobil
- BP
- Husky Energy
- Southern Company
Mining
- Gold Corp
- PCS Potash
- Mosaic
- PotashCorp
Engineering & Design Firms
- Haley & Aldrich
- Golder
- AECOM
- Arcadis
- Gannett Fleming
- SLR Consulting
- Compass Environmental Professionals
Site Owners
- NASA
- US Air Force
- Dupont
- GE Electric
- Albemarle Corp
- Evonik
- Leprino Foods
- St. Mary River Irrigation District
Leadership
The L4H team has been successfully installing One-Pass Trenching projects since 2003. Our team was at the forefront of deep collection trenching in the United States: Successfully installing collection trench installations and proving the success of the technology in multiple industries and applications. Many projects have been successfully remediated and decommissioned years prior to design expectations.
Services
Soil Mixing
The L4H team has been successfully soil mixing with One-Pass trencher technologies that started at shallow depths and have evolved to depths of 100 feet and more. One-Pass Trenching soil mixing creates an impermeable barrier wall and is mixed in-situ and offers a dense, homogeneous, and uniform mix. Project-specific mix designs often include additives such as bentonite, portland cement, slag cement, and others to meet permeability and strength requirements.
All the mixing takes place simultaneously underground leaving no open trench allowing for a safe work environment. Tight work site configurations in many cases do not requiring more room than the footprint of the machine, ideal for dams and levees, and limited access work areas.
Collection Systems
Collection systems often include a sump and slotted pipe with backfill material that is installed simultaneously with no open excavations, no dewatering. and no sheeting and shoring required. Direct bury pipe is also available and offers high production rates. The L4H team has experience successfully installing collection systems up to 50 feet deep.
The L4H team has installed many different project specific systems including PRB and bio-walls, air sparge systems, multiple pipe and backfill trenches, funnel and gate systems, deep dewatering, and many other custom and specialty applications as upon request.