Scott Pate, P.G.


Scott Pate began his geologic career in the oil and gas exploration industry in East Texas and the Gulf of Mexico while he was still a graduate student. He credits 12-hour shifts and 14/7 work schedules with teaching him a strong work ethic that has stayed with him throughout his professional life. His work as a consultant also highlighted the importance of customer service, which he recognized as equally important to technical expertise. In 1991 Scott relocated to Atlanta and transitioned to the growing environmental consulting industry. Quickly working his way up from field geologist to a senior management role, he learned about the technical, operations, financial and marketing aspects of business. Putting this accumulated expertise into action, in 1996 he founded Sierra Piedmont.

Embodying Scott’s personal commitment to provide clients with environmental solutions at a level of service well above the competition, Sierra Piedmont has built a successful track record of repeat business and strong client relationships.

Scott describes his most important role with Sierra Piedmont as acting as the client’s champion inside the firm, keeping every level of the company aware of their customers’ most significant priorities and concerns. Having worked in corporate industry for the first ten years of his career, Scott can readily understand his clients’ challenges of manpower, finances and schedules. As he puts it, “I know what it’s like on both sides of the fence.” As President and Chief Executive Officer, Scott provides overall strategic direction for the company, overseeing operations, client management, business development and financial functions. He takes a hands-on approach to quality control, spot-checking work in progress and reviewing deliverables before final submission to ensure they meet both the customer’s requirements and Sierra’s standards. In addition to promoting clients’ interests throughout the company, Scott also works to provide every employee of Sierra Piedmont with the same opportunities for personal and professional advancement that he has enjoyed in his own career. Having started in the industry at “ground level,” he understands the challenges of working in the field, and has done virtually every job that he calls on his staff to do. As the company has grown, Scott has taken steps to recruit and retain employees that share his commitment to customer service and building a corporate culture that values accountability and responsiveness. Working with the firm’s senior leadership, he has developed a “Client Bill of Rights,” and a formal statement of the company’s values and service model known as “Sierra 360°.” Scott proudly notes that these documents are not vision statements reflecting what the company wants to be – they articulate the approach the firm already takes to its day-to-day business. Scott believes sharing clients’ sense of urgency is what distinguishes Sierra Piedmont from its competition. As a measure of success, the firm has built longstanding relationships with a number of leading companies, many of which exceed ten years.

35 Years

Master of Science in Geology,
Stephen F. Austin State University
Bachelor of Science in Geology,
Stephen F. Austin State University

Registered Professional Geologist (P.G.) in Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Kentucky, Mississippi, Nebraska, North Carolina, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Washington

National Association of State Boards of Geology (ASBOG) Certified Registered Project Manager (CAPM), Texas

Member, National Ground Water Association

Member, Atlanta Geological Society

Trainer – Dale Carnegie & Associates “Leadership Training for Managers”

Publications & Presentations
Presenter – “Environmental Best Practices for the Tire and Service Station Dealer” – Tire Industry Association

Author – “Beating your Competition with Environmental Stewardship” Today’s Tire Industry



Brian Gibson

Business Unit Leader/Account Manager

Relevant Experience

Phase I, II and III Environmental Assessment—Managed, directed and/or implemented all phases of environmental site assessments/risk assessments at multiple sites in multiple States. Sites have included industrial, commercial, agricultural, mining, and residential sites. Work has included air, water, and/or soil sampling/remediation.

Contamination Assessment—Managed, directed and/or implemented all phases of contamination assessments at multiple sites in multiple States. Sites have included industrial, commercial, agricultural, and residential sites. Contaminants have included petroleum, solvents, lead/arsenic/metals, acids, pesticides and herbicides.
Remediation—Managed, directed and/or implemented all phases of site cleanup/remediation at multiple sites in multiple States. Sites have included industrial, commercial, agricultural, and residential sites. Work has included chemical, biological and physical cleanups (excavations, system installations), and system O&M.

Construction—Managed, directed and/or implemented all phases of remediation and general construction at multiple sites in multiple States. Sites have included industrial, commercial, agricultural, military, and residential sites. Work has included excavation, air sparge, soil vapor extraction, dual phase extraction, pump & treat, chemical injection, bioremediation. Work has also included general construction/renovation.
Geotechnical/Sinkholes—Managed, directed and/or implemented all phases of subsidence investigations and sinkhole repairs (grouting/foam) at multiple sites throughout Florida.

Areas of Specialization
Project Management, Remediation Design, Remediation System Construction/Installation, Budgeting, Staffing, Business Development, Geology, Environmental Site Assessments, Contamination Assessment, Storage Tank Compliance Management, Analytical Data Interpretation, Construction Management (Contract Development, Negotiation, Administration), Geotechnical/Sinkhole Investigation, and Regulatory Report Preparation.

Since 1989

B.S Geology
Indiana University 1989
A.S. Geology
Vincennes University 1987

State Licensed Certified Building Contractor, Florida
Professional Geologist, Florida
Professional Geologist, Georgia
State Licensed Mold Assessor
State Licensed Mold Remediation
State Licensed Home Inspector



Scott Dunsmuir

Business Unit Leader/Account Manager

Scott is a proven professional with over 20 years of broad environmental expertise. He is client focused, driven and is adept at navigating complex regulatory infrastructures. As a high-energy leader and loyal team player, he focuses on maintaining and growing strong relationships with clients and industry regulators. As your team member, Scott will consistently provide cost-conscious exit strategies aimed at reducing client environmental liability in the most safe and expeditious manner. He brings 15 years of management expertise supervising professional and technical employees and working in a collaborative environment driven by a passion for the environmental industry.


• Regional and branch operations management
• Direction of operational initiatives to improve efficiencies and ensure growth
• Short term and long term business planning, sales forecasting and corporate initiative execution
• Talent development, leadership, and retention
• Multi-industry client and project management including petroleum, industrial, brownfields, and real estate
• Strong, long term regulatory relationships with several state regulatory agencies
• Guaranteed fixed price to closure portfolio management
• Implementation of complex, dynamic client metrics in order to align the goals of the client-consultant relationship


Account Management, Large Scale Portfolio Management, Regulatory Compliance, Client Metric Implementation, Budget & Forecasting, Project Team Development, Due Dilligence, Assessment & Remediation, Health & Safety Program Leader, Business Unit & Branch Operation Leadership

Since 1992

B.A. Geography/Environmental Planning, Bloomsburg University of Pennsylvania


Certified Hazardous Material Manager – Master Level 2000 to 2009 *Recertifying 2015

OSHA Certification 8-Hour Refresher for HAZWOPER – 2014

OSHA Certification 8-Hour Management/Supervisory
Training – 2012

OSHA Certification 40-Hour Training Course HAZWOPER – 1993

Academy of Hazardous Material Professionals

AHMP Georgia Chapter

Georgia Brownfields Association

American Society of Civil Engineers

American Society of Safety Engineers

Pipeliners Club of Atlanta

National Ground Water Association



Elizabeth Grassmuck

Executive Assistant/Office Manager/HR

Liz comes to Sierra with over 40 years’ experience in the Administrative field, formerly working in the aircraft industry for over 22 years. She entered into the environmental field in 1990 and has served in various capacities for several environmental agencies. Liz now serves as Sierra Piedmont’s Executive Assistant/Office Manager/HR, responsible for serving as Executive Assistant to the President, office administrative duties including managing IT resources, and Human Resource functions including all new hires, payroll and expenses. My business philosophy is that strong loyalty and dedication provides a successful working environment in Sierra and with our clients.

Since 1969

Ritenour, St. Louis, MO

Dale Carnegie Training, 2011

Dale Carnegie 3x Breakthrough Award Winner

Certificate of Appointment of Notary Public Commission, Since 1991



Karen Dorton

Project Cost Account Manager

Karen comes to Sierra with more than 30 years of experience in the financial, costs, budgeting, accounting and administrative fields.  Before coming to Sierra in 2006, she worked for an architectural and engineering firm for over 18 years, as well as CEO of a mechanical business.  Karen worked several positions in her tenure with Sierra which has allowed her the opportunity to successfully fulfill her present role as Project Cost Account Manager.  As Project Cost Account Manager, Karen is responsible for all of the financial responsibilities for Sierra; including accounts payables, accounts receivables, budgeting, and financial management.  She works closely with both Sierra’s project managers and staff as well as clients to ensure the financial health and status of each project.  My belief for any successful business is that hard work and pulling together as a unit is imperative in making a successful firm.

• Georgia College, Macon, GA
Certified Paralegal, June 1996
• Central High School, Macon, GA
High School Diploma, June 1984
• Dale Carnegie Training, Atlanta, GA
Effective Communications and Human Relations/Skills for Success
Diploma, June 2011