San Gabriel Valley Tribune – February 2015
“The landscapers from Canoga Park-based TruGreen LandCare mowed the grass, blew the leaves and whacked the weeds, but they did so using only battery-electric equipment, marking the first city park in the nation to be 100 percent gas and emissions free”.

Read more here: http://www.sgvtribune.com/environment-and-nature/20150226/first-emissions-free-park-located-in-south-pasadena-uses-battery-powered-mowers-leaf-blowers