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Eugene C. Revelas

Eugene C. Revelas
Senior Science Advisor

Eugene C. Revelas

Senior Science Advisor

Mr. Gene Revelas, senior science advisor at Integral, is a leading sediment scientist with 40 years of experience working on benthic habitat assessments, environmental monitoring of offshore energy projects (both oil and gas and renewables), contaminated sediment remedial investigations and remediation, and dredged material quality evaluations and disposal site monitoring. He has extensive experience in the use of sediment-profile and plan view imaging (SPI–PV) technology for characterizing marine, estuarine, lacustrine, and riverine habitats. He has conducted SPI surveys since 1984, and he has applied this technology in freshwater and marine settings throughout the United States and in...

Mr. Gene Revelas, senior science advisor at Integral, is a leading sediment scientist with 40 years of experience working on benthic habitat assessments, environmental monitoring of offshore energy projects (both oil and gas and renewables), contaminated sediment remedial investigations and remediation, and dredged material quality evaluations and disposal site monitoring. He has extensive experience in the use of sediment-profile and plan view imaging (SPI–PV) technology for characterizing marine, estuarine, lacustrine, and riverine habitats. He has conducted SPI surveys since 1984, and he has applied this technology in freshwater and marine settings throughout the United States and in Canada, Mexico, and Europe. He leads Integral’s SPI–PV practice and since 2015 has directed and been the science lead on more than 50 SPI–PV surveys, including numerous environmental baseline surveys at offshore oil and gas and wind farm lease areas, contaminated sediment site remedial investigations, post-remedial long-term monitoring, and dredged material disposal site assessments. At Integral, he has directed the development of computer learning techniques for automated SPI–PV image analysis. He has also refined the use of SPI–PV technology for cost-effective ground-truthing of acoustic mapping of the seafloor, and he has expanded the use of SPI–PV technology to support sediment bed consolidation evaluations and site-specific biologically active zone determinations.

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Integrated and Adaptable Approach to Mapping Benthic Habitats to Support Offshore Wind Development off the Mid-Atlantic Outer Continental Shelf

Publication

July 01 2024

Mapping of Benthic Habitats at Marine Renewable Energy Sites Using Multibeam Echosounder and Sediment Profile Imaging Technologies

Publication

July 01 2024

Mapping Benthic Habitat Conditions and Seafloor Deposits Using Sediment Profile Imaging and a Semiautomated Image Processing System

Publication

July 01 2024

Towards Standardized Integration of Seafloor Mapping Tools for Offshore Benthic Characterization

Publication

July 01 2024

Use of SPI Technology to Quantitatively Evaluate the Effects of Carp Removal on Surface Sediment Conditions in a Michigan Lake

Poster

January 11 2023

Introducing Integral's Sediment Newsletter: The Benthic Zone

Press Release

April 01 2022

Mapping Dredging Residuals and Disposal Deposits

White Paper

March 28 2022

Integral iSPI Technology

Video

February 28 2021

Douglas Harbor Dredging: Alaska

Case Study

May 24 2019

AI and Computer Vision for Environmental Monitoring: Washington

Case Study

May 23 2019

Data Analysis

Baseline Benthic Seafloor Habitat and Seafloor Characterization Assessment, Wind Energy Lease Area and Cable Routes, East Coast Continental Shelf, Confidential Locations Science lead for the collection, analysis, and interpretation of thousands of SPI–PV images collected from May 2020 through July 2024 at several offshore wind farm lease areas and numerous planned and alternative export cable routes. Oversaw image collection; directed and performed senior quality assurance review of image analysis results and data evaluation, including benthic habitat classifications in accordance with Coastal and Marine Ecological Classification Standards (CMECS); and was responsible for all technical reporting.
Standardized and Cost-Effective Benthic Habitat Mapping Tools for Marine and Hydrokinetic Site Environmental Assessments, United States Under a contract with the U.S. Department of Energy, served as principal investigator of a 3-year study (2017 to 2020) to standardize and automate seafloor survey technologies for rapidly characterizing benthic habitat conditions across a range of environments. The concept is to integrate SPI–PV technology with well-established geophysical mapping techniques (e.g., multibeam bathymetry and acoustic backscatter) to develop effective and low-cost benthic habitat mapping protocols. A primary objective was the development and refinement of automated interpretation software that identify and measure key physical and biological indicators in the SPI–PV images and link them to geophysical maps so that habitat distinctions can be rapidly identified and delineated. This software is Integral’s iSPI innovative image analysis platform.  
Salmon Net Pen Benthic Standards for Puget Sound, Washington Under contract to the Washington State Department of Ecology from 1994 to 1996, developed standards for evaluating the benthic impacts of salmon aquaculture in Puget Sound. Work included analysis and synthesis of several years of net pen monitoring data and development of effects criteria that were incorporated into an industrywide net pen regulatory framework.

Project Management

Multiple Environmental Baseline Study SPI–PV Surveys, Mexican Gulf of Mexico Project manager and technical lead for numerous oil block lease area surveys and pipeline route surveys in the southern Gulf of Mexico from 2017 through to 2024. Project proponents included Shell, Total, Exxon, BHP Billiton, the Mexican Petroleum Institute, Hokchi Energy, Petronas, Chevron, Deutsche Erdoel Mexico, Respol, Premier Oil, and British Petroleum. Conducted all project management duties including planning, scheduling, budgeting, and logistics; conducted senior quality assurance review of all SPI–PV image data; and served as primary author on all SPI–PV survey technical reports/deliverables.
Douglas Harbor Dredging and Disposal Site Monitoring, Juneau, Alaska Project manager for the environmental monitoring associated with the dredging, disposal, and capping of 40,000 cubic yards of sediment from Douglas Harbor, Alaska. Conducted baseline, post-disposal, and post-capping SPI–PV surveys of the dredging and disposal sites, as well as water quality monitoring and sediment chemistry sampling during disposal. Effectively mapped the disposed dredged material mound and sand cap materials with SPI–PV technology, and analyzed and evaluated the project data set. A final construction monitoring report, including a 1-year post-construction survey, was completed in May 2017.
Deepwater Horizon, Gulf of Mexico Worked in conjunction with the consulting team in responding to the Deepwater Horizon accident and oil spill in the Gulf of Mexico on behalf of BP Exploration & Production Inc. Science lead for several water column sampling cruises in 2010. Member of benthic technical working group from 2011 to 2014, which worked on assessing offshore benthic community impacts resulting from the Deepwater Horizon oil spill, including the design of the SPI–PV surveys that were conducted as part of that assessment.
Portland Harbor CERCLA RI/FS, Portland, Oregon Remedial investigation technical lead for the Portland Harbor CERCLA sediment site. Responsibilities included overseeing all remedial investigation sampling activities, laboratory data analyses, and technical reporting. Also served as task lead for assessing physical site conditions (i.e., hydrodynamics and sediment stability and sediment contamination nature and extent). As the remedial investigation data lead, responsible for coordinating the multimedia (hydrographic, sediments, water, tissues) sample collection activities of the RI/FS consultant team for this complex, 10-mile tidal riverine site; this included oversight of all sampling activities and laboratory data analyses. Designed an iterative approach to understanding sediment transport dynamics at the site using a combination of existing information, empirical data, and numerical modeling, and directed the remedial investigation reporting. Additional roles included budget preparation and tracking; planning and development of technical scopes of work; progress reporting, oversight, and quality assurance review of project deliverables; and preparation of technical products.
Western Port Angeles Harbor RI/FS, Port Angeles, Washington As part of the RI/FS consultant team, designed a 2013 SPI–PV survey of the site to evaluate the impact of wood debris on benthic habitat quality and conducted a temporal comparison with SPI–PV image data that had been collected 15 years earlier.
Former Oil Gasification Plant Site Assessment, Astoria, Oregon Managed the sediment and resource evaluation portion of a site assessment in Youngs Bay, Oregon. The project consisted of an environmental evaluation of an intertidal coal tar deposit under Oregon Department of Environmental Quality oversight. The assessment included physical mapping of the deposit, evaluation of chemical pathways and potential ecological (including threatened and endangered species) and human health impacts, and evaluation of the potential environmental impacts associated with various remedial alternatives.
U.S. Army Corps of Engineers, Marine Sediment Sampling, Chemical and Biological Analyses in Western Washington From 1995 to 2002, managed task order projects, including numerous dredged material characterizations under the Dredged Material Management Program for sites in Puget Sound, Grays Harbor, and Willapa Bay. Prepared a Programmatic Environmental Impact Statement for the interagency Puget Sound Confined Disposal Study on multiuser disposal sites; conducted a site sediment quality assessment for habitat restoration in the Duwamish River; conducted multiyear crab population studies at the mouth of Grays Harbor; led an extensive laboratory bioaccumulation study in the East Waterway; monitored water quality during contaminated sediment dredging in the East Waterway; and assessed paralytic shellfish poisoning issues associated with dredging/disposal in Bellingham Bay.
Hylebos Waterway Pre-Remedial Design, Tacoma, Washington Major involvement in the comprehensive sediment characterization portion of the Hylebos Waterway pre-remedial design program from 1994 to 1997. Responsibilities included coordination and oversight of coring activities and core sample analyses; data analyses, including Puget Sound Dredged Disposal Analysis (PSDDA) and natural recovery assessments; and technical reporting. Also directed a sediment profile survey of entire waterway and synthesized this information with traditional chemical and biological data sets.
Contaminated Sediments Section, Washington Department of Natural Resources (DNR), Washington While employed at DNR in 1993, managed the Contaminated Sediments section at DNR’s Division of Aquatic Lands. This section’s responsibility is the environmental review/assessment of projects/programs affecting state-owned aquatic lands. Major tasks included technical review of RI/FS and remedial design documents for federal and state Superfund sites, participation on interagency technical panels evaluating proposed sediment remediation activities, and the refinement and development of sediment quality assessment techniques.
Puget Sound Dredged Disposal Analysis, Washington Managed the PSDDA program for DNR from 1991 to 1994. PSDDA is a federal/state interagency program for managing dredged material and disposal in the Puget Sound region. Responsibilities included sediment sampling plan and data report review, technical direction of biological and chemical monitoring studies at the open-water dredged material disposal sites, and evaluation procedures technical review. As a consultant prior to joining DNR, directed PSDDA disposal site physical, chemical, and biological monitoring (1990 to 1991) and participated in PSDDA disposal site baseline (1988 to 1989) and zones of siting feasibility studies (1985).
U.S. Navy Homeport Project, Everett, Washington From 1987 through 1989, acted as assistant program manager for the environmental monitoring/dredged material testing program associated with construction of the Everett Naval Base. Coordinated collection and analysis of baseline environmental data at a deep-water disposal site and directed the Element I dredged material sediment characterization.
Alcatraz Disposal Site Study, San Francisco, California In 1986 and 1987, served as chief field scientist for a multiyear study designed to assess the behavior of dredged material disposed at the Alcatraz site as a function of dredging and disposal techniques. Field techniques included current measurements, bathymetric and acoustic subbottom profiling, side scan sonar, sediment-profile photography, and deep sediment coring. Participated in data analysis and coauthored project technical reports.
San Francisco Bay Sediment Quality Investigation, California Conducted a San Francisco Bay sediment quality survey and analyses for the National Oceanic and Atmospheric Administration in 1986. Led field, data management, and report preparation efforts. Program involved conductivity-temperature-depth profiling, sediment profile imaging, and sediment analyses throughout the estuary.
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