… Sustainability … Sustainability Sustainability At Foothill Transit, we embrace sustainability because it benefits all aspects of our business, while also helping our communities by … zero-emission service to residents in the San Gabriel Valley. To support our HFC fleet, hydrogen fuel is stored at the new Pomona Hydrogen Fueling Station in a 25,000-gallon tank – the largest hydrogen fuel tank used for transit in North America. … are equipped with rooftop solar panels. We recently replaced the HVAC (heating and air conditioning) system at our Pomona operations and maintenance facility with a high-efficiency system, including a thermoplastic white roof. This roof …