dicted and actual energy savings. It also was witnessed that the standard operating procedure was not followed for salt loading and leaving large roll-up doors open in the winter. The administration and office areas of the building are cooled by DX cooled systems. To reduce the environmental impact, R-410 refrigerant was used in the cooling systems as opposed to R-22, which was the more readily available refrigerant at the time of design and construction. Part of the reason for choosing a plate-style heat exchanger for the energy recovery was to eliminate the use of refrigerants for this system. Exhaust stacks were sized to ensure that there is no reentrainment for the neighboring buildings. This will keep the surrounding building’s occupants from breathing vehicle exhaust fumes and salt laden air. Filters are also used on the exhaust from vehicle space airstreams to remove some of the larger particles and the sticky film that is produced by the vehicles. The building also incorporates high albedo roofing to reduce heat island effect. To reduce the heat and light reflection to the taller neighboring buildings, vegetative roofing was added to the building edges to reduce the glare to neighbors from the highly reflective roof. Efficient plumbing fixtures were also used throughout the building resulting in a 33.9% reduction in wastewater generation. The construction diverted 86.5% of the waste from landfills, reclaimed a brownfield site, used local and regional materials, and used low VOC building materials and finishes. The fueling station at the public works building incorporates compressed natural gas and biodiesel for the village’s entire vehicle fleet. The completion of the building increased the safety for the neighbors due to better controlled vehicle traffic. Ambient noise was reduced by housing the department’s vehicle storage and salt loading indoors. Housing the salt storage and loading also has greatly decreased the amount of salt runoff into the sewer system and green spaces. The building serves as the fueling station for every village owned vehicle, from sedans to snowplows to fire engines. The village has converted all of the diesel vehicles in their fleet to bio-diesel and the gasoline fueling system is ready to convert to E-85 when the village phases in flex fuel vehicles. The construction also relocated existing equipment in order to serve compressed natural gas fueled vehicles. The building has also become the educational center for sustainability in Oak Park. They host weekly lectures and tours dedicated to sustainability. Posters explain green features that can be seen, as well as unseen green aspects of the building, such as the ventilation systems. www.info.hotims.com/30917-14 www.info.hotims.com/30917-7 50 ASHRAE Journal June 2010