City of Grand Junction Persigo Wastewater Treatment Plant Mesa County, CO FACT SHEET • Development of small scale biogas-based fuel process to power CNG vehicles • Pipeline engineering and construction • BioCNG system construction • CNG station modification and integration • WWTP integration • Permitting • System startup • System operation and management assistance BioCNG, LLC, an affiliate of Cornerstone Environmental Group, is the design/build firm installing a BioCNG™ biogas conditioning system and gas pipeline for the Persigo wastewater treatment plant (WWTP). The WWTP is jointly owned by the City of Grand Junction and Mesa County, CO. BioCNG is engineering the system, providing permitting, construction management, and sys- tem commissioning and start up. Additional work includes design and installation of an option to preferentially use BioCNG in the WWTP digester boiler instead of natural gas, thereby saving on treatment plant operating costs. The BioCNG system will produce up to 500 gallons of gaso- line equivalent per day from the WWTP digester gas, which will be piped about 6 miles to Grand Junction’s existing compressed natural gas (CNG) fueling station. The BioCNG will be used as fuel for a fleet of buses owned by Grand Valley Transit (GVT) and fueled at the City of Grand Junction facility, as well as City refuse trucks, street sweepers, and general utility pickups. The City of Grand Junction and GVT continue to purchase additional CNG vehicles to increase the overall CNG fleet. For more information: 630.410.7202 [email protected] Key Project Activities Project Manager: Steve Wittmann Client Contact Dan Tonello Tel # 970.256.4171 Start/End Date: July 2013 - April 2015