Project:  Construction Monitoring of Hard Rock Mine Closure

Client: National Park Service

Period of performance: 2010 – 2011

We provided supervision to ensure compliance with the construction contract and associated environmental protection measures for the hardrock closures at Coronado National Memorial, Saguaro National Park, Grand Canyon National Park, and Organ Pipe Cactus National Monument. Biological monitors were present for construction activities at all mine features, and archaeological monitors were present during ground-disturbing activities associated with closure of mine features listed in or eligible for listing in the National Register of Historic Places. We were responsible for ensuring minimal impacts to natural resources and that applicable mitigation measures were applied. Access involved extended strenuous hikes accompanied by armed guards for safety. Remote (and inaccessible by ground) locations at Grand Canyon National Park required helicopter transport of equipment and personnel.