Water Resources

OASIS biologists, hydrologists, and engineers successfully implement solutions to a multitude of challenging water resource issues. Our focus is on achieving project objectives with responsible environmental restoration and development practices. Design expertise and hands-on field experience enable us to turn project constraints into opportunities, creating aesthetically pleasing outcomes with long-term environmental benefits. Beginning with site assessment, our goal is to create an open-communication partnership with our customers to develop design solutions that balance budget and schedule to meet project goals. Our multi-disciplinary team collaborates throughout the design, permitting, and construction phases to ensure solutions are implemented to successful completion. (Also see related capabilities in our Ecological Sciences business line).

For more information on our services and solutions, please contact our Water Resources team.

Capabilities

Stream Restoration and Fish Habitat Enhancement

  • Watershed inventory and assessment
  • Classification and habitat surveys
  • Natural channel design
  • Bank stabilization
  • Sediment transport analysis
  • Geomorphic investigations
  • Construction oversight / implementation
  • Regulatory permitting and funding support

Wetland Assessment, Restoration, & Monitoring

  • Delineation and functional assessments
  • Restoration and enhancement design
  • Construction oversight / implementation
  • Regulatory permitting
  • Monitoring and long-term management
  • Federal Clean Water Act compliance support

Hydraulic Engineering

  • Hydrology and hydraulic analysis
  • Surface water modeling
  • Groundwater modeling
  • Hydraulic structures design
  • Floodplain determination and FEMA revision mapping
  • Expert witness / legal support

Fish Passage / Barrier Analysis

  • Passage assessment
  • Barrier design preserving and isolating native populations
  • Fishway and road crossing design
  • Retrofit of existing structures
  • Construction oversight
  • Feasibility studies and cost estimation

Mitigation Banking

  • Site selection
  • Project prospectus preparation
  • Mitigation Banking Review Team (MBRT) support/liaison
  • Characterization of baseline conditions
  • Development of performance standards
  • Design and construction implementation
  • Long-term maintenance and monitoring
  • Credit ledger management and sales
  • Education and outreach

Stormwater Management

  • Grading and site drainage design
  • Engineering and statistical analysis
  • Stormwater modeling (SWMM)
  • Urban watershed planning, channel relocation and stabilization
  • Stormwater runoff control and permitting
  • Low impact design (LID)
  • Implementation of Best Management Practices (BMP)
  • Erosion and sediment control design and monitoring

Revegetation Services

  • Riparian restoration and enhancement plans
  • Revegetation design, installation and maintenance
  • Native plant nursery and custom propagation
  • Native upland / wetland plant and seed supply
  • Site-specific seed collection services
  • Monitoring, documentation and conservation management
Water Resources
Statement of Qualifications
(high-res PDF/6.7MB)
(low-res PDF/845KB)

 

OASIS employee measuring fish

Case Studies

  • Montana Department of Fish, Wildlife & Parks

    Scientists from OASIS identified an isolated population of genetically pure native westslope cutthroat trout...
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  • Montana Department of Transportation

    OASIS created wetland mitigation sites (banks) for MDT to provide credits that offset the loss of wetlands caused by road construction...
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  • Private Landowners

    The owners of the PMD Ranch and the Nelson Spring Creek Ranch had interest in restoring a small unnamed spring creek...
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  • Montana Department of Fish, Wildlife & Parks

    The Chadbourne Irrigation Diversion Dam on the Shields River near Clyde Park, Montana was degrading...
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