FREY has designed, installed, replaced, expanded, and operated LFG systems for the County of Orange, the City of Oceanside, the City of Los Angeles, and Allied Waste Systems. One specific example is the City of Los Angeles contracted FREY to assist the city with the expansion of the landfill gas (LFG) control/recovery system at the Lopez Canyon and Toyon Landfills. LFG system expansion was necessary to control surfaces emissions of LFG (in particular methane) to levels below those stipulated by the South Coast Air Quality Management District (SCAQMD), and to provide additional quality gas for energy generation at their on-site recovery facilities. FREY handled all aspects of the project from design to implementation.

FREY was retained by a real estate developer to provide environmental consulting and oversight of the demolition, assessment, and remediation of a former sewer plant. Regulatory oversight was provided by the Department of Toxic Substance Control (DTSC). The DTSC typically requires rigorous standards for sampling and analysis for environmental compliance. FREY collected and analyzed nearly 700 soil samples from the 60 acre site. FREY concluded that approximately 35 acres of mainly surficial soil was contaminated with polychlorinated biphenyls (PCBs) and dioxins. FREY estimated that nearly 200,000 tons of soil would need to be excavated and transported off-site for disposal to accommodate future residential home development.

During grading operations an unknown UST was discovered at a construction site at the former location of a portion of the Los Angeles Orthopedic Hospital. FREY was retained by the developer to collect soil samples from beneath the UST upon its removal and to assess the extent of concentrations of petroleum hydrocarbons in soil beneath the UST. The UST was observed to be in a degraded condition showing moderate signs of corrosion. It was unknown at the time of its removal what the UST had been used for prior to its discovery at the Site.

The Los Angeles County Department of Public Works, Flood Maintenance Division retained the services of FREY to redesign, install, operate, and maintain a trash/debris collection system installed at the mouth of the Los Angeles River. The trash/debris collection system (System), which includes 14 26-inch diameter interconnected beams and an associated innovative anchoring system, is designed to collect trash/debris that is flushed from storm drain systems into the river during storm events. Since taking over the project in April of 2003, FREY has redesigned the System to allow for more effective deflection and collection of trash/debris. Over 1,500 tons of trash/debris is currently harvested annually from the System by FREY.