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RESEARCH  DESIGN  PERFORM

Providing Practical Solutions to Our Clients' Most Complex Challenges

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

OUR SERVICES

RDP Consultants provides comprehensive environmental consulting services, including:

 

  • Asset retirement support

  • 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

  • Phase I and Phase II Environmental Site Assessments

  • Soil, soil vapor, and groundwater investigation and characterization

  • Contaminant fate and transport analysis

  • Site conceptual model development

  • Remedial investigation and feasibility studies

  • Remediation design, implementation, and oversight

  • Regulatory agency coordination and submittal preparation

  • Site closure support

  • Post site closure monitoring

  • Litigation support

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Louis Cappel, P.G., C.Hg.

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.

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Paul Roller

Senior Technical Advisor

As the former Director and Nuclear Plant Manager at PG&E, Paul led one of California's most significant power plant decommissioning and site restoration 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. 

805-712-5842

PO Box 64

Atascadero, Ca 93423

 

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