LEED Silver Laboratory and Office Building

Fox River Water Reclamation District

IMEG provided engineering design and energy modeling services for a new, LEED Silver, laboratory and administrative office building. The building comprises administration offices, lab personnel offices, and 2,200 square feet of lab space including a specialty space for bacteriology and metals.


IMEG engineers utilized plant effluent water as a geothermal condenser water source. This offers the benefit and efficiency of a geothermal system without incurring the initial cost of a geothermal field. The laboratory exhaust fans/motors were located indoors for maintenance and aesthetic purposes. This allowed the stacks to be extended 10 feet above the roof versus the standard 15 feet to 16 feet requirement for safety.


The power service was fed from another plant building rather than have a dedicated utility service. Since the plant has dual utility power feeds, this avoided the cost of a new utility service and an emergency generator. The temperature control system was provided as an extension of the existing plant supervisory control and data acquisition (SCADA) system.


Energy-efficient designs include daylighting controls; flexible (multi-level switching) lighting controls, LED site and interior accent lighting, energy recovery, and demand control ventilation with occupancy sensors for lighting and ventilation control.


A lobby display educates visitors on the building’s sustainable design, construction features and energy savings.


Elgin, IL



16,500 SF


Services Provided

Mechanical, Electrical, Fire Protection/Detection, Energy Modeling