A landfill natural gas facility in northern Ohio, owned by EDL Energy — a global producer of renewable energy — needed to connect to an existing natural gas transmission pipeline in the region to transport renewable natural gas (RNG) being produced in the form of captured methane from the existing landfill. We provided progressive engineer-procure-construct (EPC) services at key stages of the project.
Phase 1 included routing, preliminary engineering, right-of-way (ROW) acquisition support, surveying, environmental field delineations, and early permitting agency consultations. In the end, we competitively bid contracts for construction, equipment and materials. This progressive approach allowed us to define the scope as the route and interconnection location adjusted during Phase 1.
Phase 2 included detailed design, procurement, expediting and construction of a 3.2-mile, 6-inch carbon-steel pipeline and interconnecting station, tying into the Enbridge NEXUS Gas Transmission pipeline.
The pipeline included seven horizontal directional drills (HDDs) and two conventional bores. Crossings included state, county and local roads, foreign pipelines, creeks, landscape frontages, and forested wetlands. The route originated near the Lorain County landfill. The pipeline was designed to 1,480 psig with a maximum allowable operating pressure (MAOP) of 1,440 psig.