Our Team
Norman Weiss
Karika Bridgers
Karika Bridgers
Principal Consultant and Founder
B.S., Biology, M.A., Geography and Land Use
Norm Weiss is the Founder of NWA and has over 45 years of professional experience. He formerly served as Assistant Agency Director with the Arizona Department of Environmental Quality (ADEQ) where he directed statewide programs for hazardous waste, emergency re
Principal Consultant and Founder
B.S., Biology, M.A., Geography and Land Use
Norm Weiss is the Founder of NWA and has over 45 years of professional experience. He formerly served as Assistant Agency Director with the Arizona Department of Environmental Quality (ADEQ) where he directed statewide programs for hazardous waste, emergency response, and toxic site remediation. Prior to opening NWA, approximately 30 years ago, Norm served as a Managing Senior for two national environmental consulting firms.
He holds several professional designations and is a Certified Environmental Manager in Nevada. He is also a Lead Seminar Instructor at the Ira Fulton Schools of Engineering, at Arizona State University where he provides professional development training for HAZWOPER, Hazardous Waste (RCRA), and DOT Hazardous Materials.
At NWA, Norm’s primary focus is maintaining oversight and strategic direction for the Company. He provides expert consultant compliance services, audits and training for clients and supports the mentoring and development of NWA consultants.
Karika Bridgers
Karika Bridgers
Karika Bridgers
Senior Consultant and
Operations Manager
B.S. and M.S., Technology, Environmental and Emergency Management
Karika has worked with the firm since 2009. She is Manager of NWA Operations and a Senior Consultant with experience managing multi-media compliance programs in large manufacturing facilities. Programs include Emergency Planning
Senior Consultant and
Operations Manager
B.S. and M.S., Technology, Environmental and Emergency Management
Karika has worked with the firm since 2009. She is Manager of NWA Operations and a Senior Consultant with experience managing multi-media compliance programs in large manufacturing facilities. Programs include Emergency Planning and Community Right to Know, Chemical Management and Audits, Hazardous Waste Leak Detection & Repair, Industrial Wastewater Sampling, Clean Air Act Compliance, Trip Reduction Programs, and Hazard Assessments for Process Equipment Decontamination Approvals.
As Operations Manager, Karika manages NWA workflow, NWA Operational Procedures, Quality Control and Assurance, Proposals, and Marketing. Karika has performed extensive scientific research on topics including; water treatment, materials science, U.N. Minamata Convention on Mercury, and emergency communications. A skilled technical writer, Karika has authored and co-authored numerous published scientific articles and technical reports.
Samuel Weiss
Francesca Conway
Samuel Weiss
EHS Specialist
A.A. and A.G.S. Paradise Valley Community College
Samuel has worked for the firm during the summers since 2011 and has served as both an Environmental Technician and EHS Specialist since 2017. Services have included Assistance in Various Onsite Training Classes and Development of Game-Based Training Materials. Onsite I
EHS Specialist
A.A. and A.G.S. Paradise Valley Community College
Samuel has worked for the firm during the summers since 2011 and has served as both an Environmental Technician and EHS Specialist since 2017. Services have included Assistance in Various Onsite Training Classes and Development of Game-Based Training Materials. Onsite Industrial experience has included EPCRA Tier II Chemical Inventories, Data Entry, and Quality Control; RCRA (Hazardous Waste) BB & CC Leak Detection & Repair, Recordkeeping for Air Stack Testing; Stormwater Drywell Inspections, Industrial Wastewater Sampling, and Related Compliance Services.
Tommy Lowe
Francesca Conway
Samuel Weiss
Consultant & Field Service Lead
B.S., Environmental Science, A.A.S. Environmental Engineering Technology
Tommy Lowe joined NWA in 2023 and currently serves as a Consultant and Field Service Lead. In this role, Tommy oversees compliance programs that address a range of environmental and safety requirements, including RCRA (Hazardous Was
Consultant & Field Service Lead
B.S., Environmental Science, A.A.S. Environmental Engineering Technology
Tommy Lowe joined NWA in 2023 and currently serves as a Consultant and Field Service Lead. In this role, Tommy oversees compliance programs that address a range of environmental and safety requirements, including RCRA (Hazardous Waste) BB & CC Leak Detection & Repair, Wastewater Sampling, Stormwater Dry Well Inspections and Reporting, and the development and implementation of Hazardous Materials Management Plans.
With more than 12 years of experience in the industrial sector, Tommy brings a wealth of expertise to the NWA team. His previous position as an Industrial Chemistry Lab Manager in the metal finishing industry involved serving clients in the aerospace, medical, automotive, and military fields. Throughout his career, Tommy has worked closely with compliance and safety departments to implement new products and processes, ensuring that all initiatives fully comply with government regulations and industry specifications. He has experience Managing Hazardous Chemicals and Chemical Inventory Data and has been part of an Emergency Response Team. Tommy also has expertise in troubleshooting chemical manufacturing processes, laboratory instrumentation, and wastewater characterization.
Francesca Conway
Francesca Conway
Francesca Conway
EHS Compliance Consultant
B.S in Evolution, Ecology and Conservation in Biology and a Minor in Chemistry
Francesca joined the team in January 2026 as an Environmental Compliance Consultant at NWA. She supports environmental, health, and safety (EHS) compliance programs for industrial and regulated facilities. Francesca coordinates cli
EHS Compliance Consultant
B.S in Evolution, Ecology and Conservation in Biology and a Minor in Chemistry
Francesca joined the team in January 2026 as an Environmental Compliance Consultant at NWA. She supports environmental, health, and safety (EHS) compliance programs for industrial and regulated facilities. Francesca coordinates client Trip Reduction Programs, supports hazardous waste and equipment monitoring, and oversees chemical management activities. Additionally, she assists project teams with compliance tracking, documentation, and the implementation of regulatory requirements. Her work ensures clients maintain effective, organized environmental and safety programs that meet both regulatory and operational goals.
Sean Aldrich
Austin Bridgers
Austin Bridgers
Senior Compliance Consultant
Sean Aldrich serves as a senior compliance consultant at Norm Weiss Associates. Previously, he founded and acted as Principal for Eagle EHS, LLC, and brings over 25 years of experience in semiconductor manufacturing.
Before his consulting career, Sean led Intel Corporation’s Environmental, Health, and Sa
Senior Compliance Consultant
Sean Aldrich serves as a senior compliance consultant at Norm Weiss Associates. Previously, he founded and acted as Principal for Eagle EHS, LLC, and brings over 25 years of experience in semiconductor manufacturing.
Before his consulting career, Sean led Intel Corporation’s Environmental, Health, and Safety (EHS) organization at its largest U.S. semiconductor facility, where he collaborated across departments to enhance environmental and safety performance. His achievements include overseeing permits for more than $27 billion in facility expansions, mitigating EHS risks through job hazard analysis programs, and rolling out the facility’s EHS Management System.
Prior to heading the EHS team, Sean held several positions at Intel, such as Environmental Engineer, Compliance Manager, and Global Air Program Manager. His expertise covers auditing, hazardous waste management, air quality, and sustainability. Sean earned his Bachelor of Science in Environmental Toxicology from the University of California, Davis.
Austin Bridgers
Austin Bridgers
Austin Bridgers
Administrative Services Officer and Environmental Field Associate
Austin joined NWA in April 2024. He supports all administrative functions at NWA. For 8 years, Austin served in the U.S. Army as a non-commissioned officer. He brings valuable experience working in various operations providing planning and administrative functions includin
Administrative Services Officer and Environmental Field Associate
Austin joined NWA in April 2024. He supports all administrative functions at NWA. For 8 years, Austin served in the U.S. Army as a non-commissioned officer. He brings valuable experience working in various operations providing planning and administrative functions including but not limited to logistics, project management, and contracts management.
Managing accounts receivable and developing operational procedures and policies. At NWA Austin aligns our administrative systems and processes to enhance efficiencies within a virtual office. He supports administrative service functions that relate to accounting, payroll, project management, human resources, marketing, and cyber security. Austin is also cross-trained to support NWA field projects associated with Leak Detection & Repair when required. .
Drew Cesarini
Austin Bridgers
Drew Cesarini
Safety Officer
B.S., Construction Management and Technology (On-going) & Exercise and Wellness
Drew Cesarini joined the NWA team in September 2025 as a student pursuing a Bachelor of Science in Construction Management with a concentration in safety, bringing his dedication to supporting others into NWA’s compliance-focused environment.
Safety Officer
B.S., Construction Management and Technology (On-going) & Exercise and Wellness
Drew Cesarini joined the NWA team in September 2025 as a student pursuing a Bachelor of Science in Construction Management with a concentration in safety, bringing his dedication to supporting others into NWA’s compliance-focused environment. With a strong background in injury prevention and wellness, Drew has developed and led corporate programs that prioritize ergonomics and workplace safety.
He contributes to NWA’s safety initiatives, enhancing the organization's commitment to health and safety. At NWA, Drew advances the Client Heat Safety Program, completes hazard assessments, advises on ergonomic practices, and expands research into actionable corporate wellness strategies designed to mitigate risk and promote healthy workplace behavior.
Dan Shinder
Tim Higgs, P.E.
Tim Higgs, P.E.
Fractional CMO
Dan has been brought on as our Fractional Chief Marketing Officer after spending a few months as our marketing consultant to work with us at a much deeper level in a more hands-on position.
Dan has worked with countless companies of many sizes and entrepreneurs of all types in many industries, both B2C and B2B,
including Gold
Fractional CMO
Dan has been brought on as our Fractional Chief Marketing Officer after spending a few months as our marketing consultant to work with us at a much deeper level in a more hands-on position.
Dan has worked with countless companies of many sizes and entrepreneurs of all types in many industries, both B2C and B2B,
including Gold and Platinum artists, Roland USA, Alesis, Denon DJ, Ford Motor Co., Akai, McDonald's, and many more.
Dan has also worked with some well-known as well as non-profit organizations, such as the National Speakers Association and The American Diabetes Association.
He has also attracted a following of 1.4M people of his own music media brand, Drum Talk TV.
dan@advancedsocialmarketing.com
Tim Higgs, P.E.
Tim Higgs, P.E.
Tim Higgs, P.E.
Fractional Chief Technical Officer
B.S. Chemical Engineering
Tim Higgs assumed the role of Chief Technical Officer at NWA in 2026, bringing over four decades of expertise predominantly within the semiconductor industry across various capacities. As a registered professional chemical engineer, he provides engineering and technical se
Fractional Chief Technical Officer
B.S. Chemical Engineering
Tim Higgs assumed the role of Chief Technical Officer at NWA in 2026, bringing over four decades of expertise predominantly within the semiconductor industry across various capacities. As a registered professional chemical engineer, he provides engineering and technical services as required. Tim possesses approximately ten years of consulting experience and spent more than thirty years at Intel, fulfilling both site and corporate responsibilities. His background encompasses substantial experience in air permitting, air emissions control, energy efficiency, and climate change initiatives.
He has collaborated extensively with state and local regulatory agencies throughout the United States and internationally on air pollution control programs, frequently advising the U.S. EPA on air program developments relevant to the semiconductor sector. Additionally, Tim is experienced in industrial wastewater management, hazardous waste handling, environmental management systems, compliance, and related environmental matters.