Wide Hollow Reservoir Refurbishment Project EA

Frontier Corporation was a third party consultant to complete an environmental assessment for the refurbishment of the existing Wide Hollow Reservoir near Escalante, Garfield County, Utah.  The U.S. Army Corps of Engineers was the lead federal agency.  The project required in-depth alternatives analysis, natural resources evaluations, cultural surveys, recreation and visual analysis, T&E surveys for southwestern willow flycatcher, wetlands mitigation, NEPA documentation and interagency coordination.   Frontier also completed annual post-construction mitigation monitoring for the project.  

Cow Canyon Springs Development EA

Frontier led an interdisciplinary team of scientists and engineers for the completion of a Forest Service Environmental Assessment and Biological Evaluation/Biological Assessment.  The EA was for the issuance of a Special Use Permit by the Ashley National Forest to the Duchesne County Upper Country Water Improvement District for a proposed culinary water development project.  The EA entailed alternatives analysis, socio-economic evaluation, resource analyses, impact assessments, and mitigation.  The project required an Individual Section 404 Permit from the Corps of Engineers, Section 7 consultation with the U.S. Fish and Wildlife Service, and the design and implementation of a detailed mitigation and monitoring plan.  Frontier completed the annual post-construction monitoring of the spring and wetland mitigation site that was established to replace unavoidable wetland/aquatic impacts, as required by the Forest Service and Corps of Engineers.   

Mantua Culverts Replacement Project

Frontier coordinated the environmental review and permitting for the replacement of 10 culverts on the Mantua Reservoir Feeder Canal located in Box Elder County, Utah.  The purpose of the culverts replacement was to upgrade old water conveyance infrastructure to present-day engineering standards and reduce the risk of flood hazard as required by FEMA.  

Deweyville Culinary Waterline Improvement Project EA

Frontier completed the NEPA documentation and preparation of an environmental assessment for approximately 4.4 miles of a culinary waterline project and a new 500,000 gallon water storage tank for the town of Deweyville in eastern Box Elder County, Utah.  The U.S. Army Corps of Engineers was the lead federal agency administering the project under the federal Water Resources Development Act.