ABOUT RDP
Research / Design / Perform (RDP) Consultants is an environmental consulting firm founded in 2026. RDP brings together deep scientific expertise, technical precision, and hands-on project leadership to deliver effective, efficient, and sustainable solutions to our clients' most complex challenges. From historical information review to soil, soil vapor, and groundwater assessment and remediation, we provide advisory, compliance, and field services to a diverse range of private and public sector clients.
At RDP Consultants, we believe good environmental work starts with truly understanding your project — its goals, regulatory setting, stakeholders, and the land itself. We build site conceptual models that guide practical, cost-conscious assessment, remediation, and asset retirement strategies. Working side by side with clients, agencies, and regulators, we navigate complex requirements and move projects toward closure. You'll have experienced leadership at every stage, and a team that values the lasting relationships behind every successful project.
OUR APPROACH
SERVICES
RDP Consultants provides comprehensive environmental consulting services, including:
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Asset retirement support
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Upstream oil and gas lease restoration support per California Code of Regulations (CCR) Title 14 § 1776 Well Site and Lease Restoration (14 CCR 1776), including oil well abandonment, facility decommissioning, assessment, remediation, and pond/sump closures
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Phase I and Phase II Environmental Site Assessments
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Soil, soil vapor, and groundwater investigation and characterization
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Contaminant fate and transport analysis
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Site conceptual model development
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Remedial investigation and feasibility studies
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Remediation design, implementation, and oversight
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Regulatory agency coordination and submittal preparation
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Site closure support
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Post site closure monitoring
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Litigation support
OUR TEAM
Louis Cappel, P.G., C.Hg.
Co-Founder and Principal Geologist
With over 25 years in environmental consulting, Louis specializes in assessing and remediating soil, soil gas, and groundwater across a broad range of contaminants, regulatory environments, and geologic conditions. Having worked with clients spanning small businesses to Fortune 500 companies, he takes particular pride in bringing sites to closure through assessment and remediation strategies that are cost-effective, defensible, and developed collaboratively with stakeholders.
Alex Hartig, P.E.
Co-Founder and Principal Engineer
Alex grew up on California’s Central Coast and studied Environmental Engineering at Cal Poly. For the past 20 years, he has focused on environmental assessment and remediation, leading multi-site programs from regulatory strategy and field execution through closure. His experience spans oilfield properties, well plugging and abandonment, and complex industrial sites. Alex works closely with CalGEM, regional water boards, county environmental health agencies, and other stakeholders to develop strategies that are practical, defensible, and focused on achieving efficient site closure.
Paul Roller
Senior Technical Advisor
As the former Director and Nuclear Plant Manager at PG&E, Paul led the decommissioning and site restoration for the Humboldt Bay Power Plant, one of California's most significant power plant programs, directing a portfolio exceeding $900 million and a workforce of approximately 500 personnel. An NRC-licensed Senior Reactor Operator and Mechanical Engineer, Paul advises RDP on project strategy and regulatory navigation, bringing decades of executive engineering and operations leadership and utility-grade rigor to the firm's environmental site investigation, remediation, and closure work.