GFA oversaw the design and construction of a
landfill gas recovery system at the 220-acre St. Johns Landfill. The facility
includes a 4000 scfm landfill gas compressor station and 9,600-foot 10-inch
pipeline. Gas from the landfill is being utilized by the Ash Grove Cement
Company in a lime recalcination process.
In order to construct the facility, 16 permits
and approvals from over 10 regulatory agencies were required. The facility was
constructed as part of a public/private partnership between Metro and Portland
LFG Joint Venture, a partnership that has been formed that is responsible for
the construction and which is able to take advantage of the alternative energy
tax credits that are available.
Methane at the landfill is currently being
produced at a rate of over 100 million Btu’s per hour. Development of the
project enables the landfill gas to be utilized productively and is reducing
carbon dioxide emissions in the Portland airshed by over 20,000
metric tons per year. The energy that is being saved is equivalent to the
combined demand of over 3,500 residences.
After evaluating LFG
projects nationwide, the U.S. Environmental Agency – Landfill Methane Outreach
Program selected the St. John’s LFG project as the “1998 Project of the Year”.
Contact: Gary Wright
Plant Manager
Ash Grove Cement Company
(503) 286-1677
