Omnitrans carries approximately 11 million passengers each year throughout its 480 square mile service area, covering 15 cities and portions of the unincorporated areas of San Bernardino County.

The buses at the facility, shown here in the community, operate on pipeline compressed natural gas (CNG). While CNG is naturally odorless, a pungent-smelling gas called mercaptan is added as a leak-detection safety feature. People can smell mercaptan, which contains sulfur and smells like rotten eggs, at very low levels. While these buses use CNG, we do not see an methane impact in the community based on our indicator.

The facility is bordered to the north, east, and west by residences that are home to some of the most sensitive population areas in this AB-617 community. While slightly elevated concentrations of methane were seen on certain streets near Omnitrans during the measurement period, levels were no higher than levels recorded on many segments in other areas in SBM, including most streets in Muscoy.