(Crater Lake, OR) -- Oregon Senator Ron Wyden wants the National Park Service to re-evaluate its contract with the company managing hospitality at Crater Lake. Wyden says a new assessment reveals the concessionaire has not fulfilled important responsibilities at the park over several years. He claims Aramark has not conducted required maintenance and created unsafe living conditions for staff. Wyden says his staff visited Crater Lake and observed issues related to safety, training and maintenance.