search
menu

Permitting assistance and fen management plan

About this project

client
Enbridge Energy, Limited Partnership
location
Minnesota
cost
$116,000 (Barr's fees)
completion date
2012

Enbridge hired Barr to provide permitting assistance and develop a fen management plan (FMP) as required by the Minnesota Department of Natural Resources (DNR) to perform excavations for pipeline repairs. The FMP included an ecological characterization of the fen; proposed construction methods; environmental impacts from construction; mitigation measures to minimize the impacts; restoration measures; and post-construction monitoring methods. Barr conducted the site characterization, developed construction plans, quantified the environmental impacts, and identified ways to minimize the impacts to secure DNR approval. Barr also designed and implemented a hydrology monitoring plan to document changes in groundwater dynamics before, during, and after construction and modeled expected dewatering. Barr obtained all necessary permits and approvals including a permit for incidental take of threatened and endangered plant species.

The final phase was a performance monitoring plan designed to demonstrate successful restoration. The plan outlined performance criteria for hydrology, soils, and vegetation, with an overall objective of ensuring the site maintains groundwater chemistry, hydrology, soils, and vegetation appropriate for calcareous fen ecosystems. A key component of the monitoring plan was to develop realistic performance criteria and schedule that met regulatory requirements and limited long-term financial liability. Barr successfully advocated for shorter-term, more flexible monitoring than was required for a similar project nearby. The maximum monitoring period was half the length adopted for the nearby project. The plan also included a provision that if performance criteria were met for two consecutive years, monitoring would cease within five years.

Barr conducted required construction monitoring during pipeline maintenance and prepared a report demonstrating compliance with the FMP and applicable permits.

Key team members

Steve Marshik

Vice President
Senior Civil Engineer

Alina Heydt

Vice President
Senior Environmental Engineer

Related pipelines projects

Landfill-gas monitoring at remediated dump to support brownfield redevelopment
Stationary-source evaluation for asphalt plants
Pre-acquisition environmental due diligence review
Testing and optimization of fine-tailings drying technologies
Air dispersion modeling for distributed-generation plant
Landscape master plan for watershed district
O&M manual for green-infrastructure stormwater BMPs
Design and prioritization of spillway gate repairs
Alternatives evaluation for repairs or replacement to Odland Dam and spillway
Siting and permitting for saltwater disposal wells
Engineering design for HDD pipeline replacement under highway
Incident energy and arc flash hazard analyses of three facilities
Natural-resources management plan for suburban park
Feasibility design and inspections of an urban stormwater-management tunnel
Dam safety consultations for SaskPower
Engineering services for pipeline reversal
Mine closure and reclamation
Environmental integration support for Wamsutter Crude Oil System
Monitoring of constructed wetland for groundwater remediation
Capture efficiency testing for ethanol production facility
Chemical and biological monitoring of test ponds
Stormwater storage facility for major Minneapolis interstate artery
Water-quality and sediment-dredging study to restore a phosphorus-impaired lake
Waste-gas scrubber design engineering for taconite pellet plant
EMIS implementation and related assistance
Expansion of landfill-gas-fired power generation facility
Reciprocating internal combustion engine (RICE) applicability analysis and audit
Permitting and environmental review for pipeline terminal expansion
Inspection and repair of urban stormwater tunnels
Bridge movement monitoring
Engine compliance tool update
Natural resources master plan
Embankment stabilization along Highway 73
Flood forecast mapping for city's emergency response and planning efforts
Air-quality permitting and compliance support at pipeline terminals
Environmental permitting and compliance support at terminals
Improvements to municipal flood-risk-protection system
Monitoring and maintenance of remediation system at wood-treating site
Groundwater-surface water study of McKenna Lake
Monitoring of end-pit lake at oil sands mine
Highway 55 storm-tunnel inspection
Non-segregating tailings deposition study
Highwall stability assessment
Infrastructure inspection program for Minnesota watershed district
GHG compliance monitoring for oil sands facility
Air-quality-permitting support for refinery assets
Engineering design for crude-oil-terminal pipe rack
Whitewater State Park stream restoration
Hennepin County sustainable landscape guidelines
Geotechnical deformation and failure modeling of fine tailings capping
Engineering design for pipeline pump stations and terminals
Spillway design for iron-ore-mining and mineral-processing facility
Water quality and ecological improvements to an urban lake
Developing health assessment tools for wind-turbine towers and foundations
Hydrology and hydraulic modeling of a tunnel system
Concept-level design of wastewater discharge option
Vapor-mitigation implementation and maintenance at business center
Environmental review and permitting for natural-gas-distribution projects
Minnehaha Park lower glen restoration
Flood mitigation at refinery
Design of an LED lighting system for a downtown streetscape
Fast-track realignment of a storm sewer
Municipal drinking-water wellhouse evaluation and design
Restoration of trout habitat in Vermilion River
Response to denatured ethanol release
Dispersion modeling at five ethanol production facilities
Berm-failure study at saltwater disposal well site
Remedial investigation, negotiation, and design for Superfund site
Stormwater-development reviews for an urban watershed district
Vacuum system design and installation at power plant
Design and permitting for WISCO Oilfield Special Waste Landfill
Chlor-alkali process design
Groundwater modeling for water-supply wellfield expansion
Structural and electrical engineering for coal-dryer load-out improvements
Environmental permitting and compliance support for a refinery
AFFF containment upgrades evaluation
Air permitting for petroleum refinery’s waxy-crude processing project
Environmental review for natural gas pipelines
Substation relay panel replacement design
Expansion-related permitting and review assistance
Installation design for alternative energy facility