Fill ’em up: Dale Arnold, who works for the city of Spokane’s wastewater department, examines the new compressed natural gas refueling area and new CNG garbage trucks on display at the opening of the Spokane Central Service Center on Tuesday. City vehicles, including a new fleet of natural gas-powered garbage trucks, will now be fueled and serviced at the new $16.5 million complex in east Spokane. Drivers of the CNG vehicles will plug them into the new system, and the pumps will fill the tanks and shut off automatically.