![](http://www.cleanfuelswork.com/wp-content/uploads/2014-CBWTP-aerial-photo.png)
A natural gas fueling station at the City of Portland’s wastewater treatment plant is now offering a cleaner-air alternative to the diesel traditionally used by some City vehicles. The first milestone in the “Poop to Power” project, this natural gas fueling station will provide gas from conventional sources, then switch to renewable natural gas one […]