TruStar Energy has expanded compressed natural gas (CNG) fueling stations for two waste and recycling haulers, Rumpke Consolidated Companies Inc. and Modern Disposal Services.

The Fontana, Calif.-based TruStar built both original fueling stations, but fleet expansions for both haulers necessitated the upgrades, according to a news release.

Cincinnati-based Rumpke is adding fueling posts for an additional 28 trucks. New York-based Modern Disposal is bringing on a third 250-horsepower compressor and fueling posts to fuel their 20 new waste trucks.

When the expansions are completed, Rumpke will have several hundred CNG waste trucks, and Modern Disposal will have 90.

"Both Rumpke and Modern were early adopters of CNG,” said TruStar Vice President Scott Edelbach. “And as savvy fleet owners, they understand the dynamics of the fuel and the savings associated with domestic natural gas."