Team

Joseph Martini

Joseph Martini, Principle | Lead

Joseph Martini,
Principle | Lead

Joseph has over 25 years of professional experience in permitting, land use decisions, and environmental compliance in the mineral extraction and industrial sectors in the Western United States. Joseph manages small to large scale, multi-faceted projects with a focus on strategic planning, communication, and problem solving with federal, state, and local regulatory agency personnel, stakeholders, shareholders, and corporate leadership.

Utilizing these skills and experiences, Joseph develops and delivers environmental due diligence evaluations, exploration or mine plan of operations, baseline collection programs, and operational regulatory compliance documents.

Eric Dougherty, PMP | Senior Consultant

Eric Dougherty,
PMP | Senior Consultant

Eric is a dynamic leader with over a decade of experience in hydrogeology and environmental consulting, paired with a proven track record in business management. As a key figure at Sunstone, he oversees the company’s operational backbone, driving financial strategy, contract negotiations, and performance optimization. With a Bachelor’s degree in Geological Engineering and an MBA in Project Management, Eric seamlessly integrates technical expertise with business acumen.

His technical leadership shines in managing complex projects, including groundwater investigations, environmental baseline assessments, and permitting and compliance programs for mineral extraction and municipal clients across the Western United States. Eric’s strategic oversight ensures efficient budgeting, regulatory navigation, and timely project delivery, consistently meeting client objectives. On the business side, he fosters Sunstone’s growth by streamlining operations, building strong client relationships, and identifying market opportunities to ensure long-term success.

Eric Dougherty
Sierra Dierksen

Sierra Dierksen, Environmental Consultant

Sierra Dierksen,
Environmental Consultant

Sierra is an environmental professional with 5 years of environmental compliance, monitoring, and permitting experience in the mining industry. She has a bachelor’s degree in Environmental Science from the University of Nevada, Reno. She manages environmental compliance for several properties including, groundwater sampling, site inspections, and submitting regulatory compliance reports.

Sierra excels at working with environmental regulators and key stakeholders due to her strong communication, planning, and analytical skills. Her background in water conservation, sampling, and investigations is key for supporting and planning for any mining project.

Lindsay Dunlap, Permitting GIS Consultant

Lindsay Dunlap,
Permitting GIS Consultant

Lindsay is an experienced geologist, environmental permit writer, and GIS specialist with 6 years of experience in the mining & metals industry holding degrees in Geology and Hydrogeology. Lindsay provides a range of services including, GIS mapping, geospatial analysis, field data collection, data management systems, baseline data review, and land acquisitions support and research.

Lindsay’s active mine experience offers a unique perspective on the operational and permitting requirements of a successful mining operation. She is practiced in writing state and federal permit applications and operational plans including Plan of Operations (PoO), Reclamation Plans, Stormwater Pollution Prevention Plans (SWPPP), state permit renewals, and Notices of Intent (NOI).

Lindsay Dunlap
Brittany Dougherty

Brittany Dougherty, PE | Civil Engineer

Brittany Dougherty,
PE | Civil Engineer

Brittany, a licensed Professional Engineer in Nevada and Arizona, brings over a decade of expertise in land development, water resources, site grading, and project management to small and mid-tier mining, residential, and commercial projects across the Western United States. A graduate of the University of Nevada, Reno, with a Bachelor’s degree in Civil Engineering, she delivers tailored, compliant solutions that streamline operations and mitigate environmental risks.

Her deep understanding of project needs, from permitting to water management, ensures regulatory compliance and operational efficiency, minimizing downtime and costs. At Sunstone, Brittany also drives business success by overseeing employee onboarding, marketing, and client relations, fostering strong partnerships and high-value outcomes for our clients.

Lance Reinsel, Senior Consultant | Senior GIS Consultant

Lance Reinsel,
Senior Consultant | Senior GIS Consultant

Lance has 10 years of professional experience in GIS, geology, land, permitting, and renewable energy in the Western United States. Lance has earned a master’s certificate in GIS, a bachelor’s degree in Geology, and a Professional Land Management (PLM) certificate.

Lance’s skills blend his geographic expertise with permitting, land, and mining to diligently portray a wide range of essential components related to the industry. Leveraging GIS to the fullest, he accurately assists in Reclamation, Bonding, Land/Site Analysis, Claim Staking, Due Diligence, Geographic Analysis, and Permitting. Let him map your way to a brighter future.

Lance Reinsel
Jason Dougherty

Jason Dougherty, Project Coordinator | Administrative Assistant

Jason Dougherty,
Project Coordinator | Administrative Assistant

Jason supports both the administrative and technical sides of Sunstone’s environmental consulting work. With a strong understanding of the company’s systems and workflows, he contributes to project coordination, field sampling, internal operations, and accounting support. His responsibilities span a variety of tasks including bookkeeping, permit tracking, client coordination, and helping manage project documentation and logistics.

Jason brings a strong sense of organization, adaptability, and a team-first mindset to his role. As he continues to grow within the company, he plays an integral part in ensuring projects run smoothly and efficiently from the ground up.

Garrett Forman, Project Manager

Garrett Forman,
Project Manager

Garrett Forman is a seasoned project manager with extensive experience leading mining projects, including drill programs and construction initiatives. With a background on the operator side, he excels in coordinating cross-functional teams, overseeing subcontractors, and driving strategic project execution.

Garrett’s leadership ensures efficient, compliant solutions that enhance operational success for Sunstone’s mining clients across the Western U.S. His ability to align technical and financial goals delivers tailored, high-impact results. Garrett holds a B.S. in Mechanical Engineering from the University of Nevada, Reno.

Garrett Forman
Sunstone Environmental Solutions Metals Mining Review Certificate

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