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Hazardous Materials

Compliance Monitoring

Contaminant Source Tracking

Environmental Compliance

Environmental Documentation

Hazmat Construction Oversight

Mine Site Assessment, Stabilization, and Site Restoration

Pollution Source Control

Property Transfer – Due Diligence

Remedial Design

Sediment Management

Site Characterization

Site Development

Training Services

Stormwater Management

Compliance Monitoring

Erosion and Sediment Control

Hydrologic Analysis

Hydrologic and Hydraulic Modeling

Low-Impact Development

Pollution Source Control

Sediment Management

Stormwater Treatment

Technical Guidance and Policy Development

Training Services

Watershed Assessment

Civil and Environmental Engineering

Erosion and Sediment Control

Hazmat Construction Oversight

Hydrologic and Hydraulic Modeling

Landfill Engineering

Low-Impact Development

Natural Resources Mitigation and Restoration

Remedial Design

Solid Waste Management and Design

Stormwater Treatment

Transfer Stations

Underwater Investigations and Engineering Inspections

Wastewater Conveyance and Treatment

River and Coastal Sciences

Coastal Engineering Services

Erosion and Sediment Control

Fish and Fisheries

Geomorphology and River Science

Hydrologic Analysis

Hydrologic and Hydraulic Modeling

Natural Resources Mitigation and Restoration

River and Floodplain Restoration

River Engineering

Stream Restoration

Underwater Investigations and Engineering Inspections

Wildlife Habitat Evaluation and Management Services

Water Quality

Compliance Monitoring

Contaminant Source Tracking

Lake and Aquatic Plant Management

Sediment Management

Natural Resources

Aquatic Permitting

Botanical Services

Endangered Species Act Compliance

Environmental Compliance

Environmental Documentation

Fish and Fisheries

Natural Resources Mitigation and Restoration

Stream Restoration

Technical Guidance and Policy Development

Training Services

Watershed Assessment

Wildlife Habitat Evaluation and Management Services

Wildlife Studies

Environmental Planning and Documentation

Aquatic Permitting

Environmental Compliance

Environmental Documentation

Solid Waste Management and Design

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Integrated environmental and engineering services
throughout the western United States

Latest News

11/10/2008: Herrera to be featured on Evening Magazine!
06/05/2008: EnviroVision Joins Herrera
01/30/2008: Herrera Wins ACEC Gold Award

Office Locations

Seattle, Washington

Missoula, Montana

Olympia, Washington

Portland, Oregon

More Info

Contracting • Key Staff

Staff Publications

LID Newsletter
Issue 1 - Fall 2008