Range-wide Oil and Gas Candidate Conservation Agreement with Assurances for Lesser Prairie Chicken

Lesser Prairie Chicken (c) USFWS
ERO completed an environmental assessment (EA) associated with a Candidate Conservation Agreement with Assurances (CCAA) for the lesser prairie chicken in five states to assist the Western Association of Fish and Wildlife Agencies and oil and gas participants. In addition to analyzing the impacts of the CCAA on natural, cultural, and socioeconomic resources within the covered area, the EA was used to inform the U.S. Fish and Wildlife Service’s (USFWS) Conference Report and Statement of Findings. ERO acted as a third-party contractor for the USFWS with a very short and critical schedule.

“You all at ERO were absolutely amazing this week, especially these 2 days, so please know that we appreciate all your work.” - Leslie Ellwood, Fish and Wildlife Biologist, USFWS/ES/Colorado Field Office

Western Area Power Administration, Rocky Mountain Region

Transmission line near Montrose, Colorado
As part of Blanket Purchase Agreement (BPA) for environmental services performed for Western Area Power Administration’s Rocky Mountain Region, ERO prepared a Biological Assessment/Biological Evaluation (BA/BE) for the Hesperus to Montrose Transmission Line in Colorado, including addressing issues related to lynx, Gunnison sage-grouse, Mexican spotted owl, and yellow-billed cuckoo. ERO has performed Phase I site assessments, preconstruction surveys, and post-construction monitoring for wildlife, vegetation, and paleo and cultural resources for Western in Colorado, New Mexico, and Wyoming.

Tri-State Montrose-Nucla-Cahone Transmission Line Improvement, Western Colorado

ERO is preparing an environmental assessment (EA) in compliance with the National Environmental Policy Act (NEPA) for a proposed transmission line upgrade for the 118-mile Montrose-Nucla-Cahone 115-kV transmission line.  The Bureau of Land Management is the lead federal agency and the U.S. Forest Service is a cooperating agency.  The project will help resolve maintenance concerns, increase capacity to meet growing demand, and improve transfer capabilities on the regional grid.

Xcel/Public Service Transmission Line

Cultural Survey of transmission line corridor
In support of National Environmental Policy Act compliance for the Bureau of Land Management, ERO provided documentation for Section 106 (cultural resources surveys) and Section 7 (threatened and endangered species surveys and biological assessment) for 86 miles of a 69-kV transmission line from Shoshone to Palisade in Garfield and Mesa Counties, Colorado.

Divide Creek Gas Exploration Wells

Divide Creek watershed
ERO assisted the U.S. Forest Service and WillSource Enterprise with National Environmental Policy Act compliance for natural gas well field development and associated pipelines, roads, and infrastructure in White River National Forest, Colorado.

Vega Unit Gas Well Development

Wetland delineation
ERO prepared two environmental assessments and resource studies for the Bureau of Land Management in support of Delta Petroleum Corporation’s gas development field near Collbran, Colorado.

U.S. Air Force Academy Solar Project

Solar panels
ERO prepared an environmental assessment to analyze the potential environmental effects of constructing, operating, and maintaining an 8-megawatt solar array and associated transmission line within the secure boundary of the Air Force Academy.

Carter Lake Hydropower

Carter Lake dam outlet
ERO prepared an environmental assessment for adding a hydropower facility at Carter Lake, a component of the Colorado-Big Thompson Project.

Rifle to Parachute Resource Survey and Environmental Assessment

Transmission line corridor

ERO conducted natural and cultural resource surveys for Xcel Energy’s new 18-mile 230kV transmission line from Rifle to Parachute, Colorado.  ERO was also responsible for preparation of the environmental assessment for National Environmental Policy Act compliance with the Bureau of Land Management.

Tri-State Generation and Transmission Reconductor Project

Installation of new transmission line

Tri-State Generation and Transmission Association, Inc. (Tri-State) upgraded approximately 15.3 miles of existing transmission line conductor and replaced all existing support structures from the Ogallala Substation to the Elsie Tap Substation in Keith County, Nebraska.  As part of National Environmental Policy Act compliance, ERO prepared an environmental report on behalf of Tri-State for submittal to the Rural Utilities Service. ERO also provided supporting material for Tri-State's application to the Nebraska Power Commission.