Polytechnique Enironmetal, Inc.


Our goal at Polytechnique is to support clients as they address their unique environmental challenges. 

Polytechnique's success is based on understanding our clients' challenges and engaging the right resources to deliver reliable, efficient solutions. Our resources include in-house staff and industry experts that participate as teaming partners. 


  • An integrated, seamless team that can handle broad, technical coverage and multiple, simultaneous tasks

  • Unparalleled environmental consulting experience and expertise 

  • Familiarity and working relationships with regulatory agencies

  • A proven track record of creative and effective problem solving, collaborative team building, and innovative approaches

  • Multidisciplinary expertise, knowledge of and direct experience with environmental issues

  • Integrated Health and Safety, Quality Assurance and Senior Technical Review



Joohi Sood is a California Registered Professional (Civil) Engineer and an Envision Sustainability Professional. She has over 25 years of experience working as an environmental professional and consultant.

Joohi has extensive experience as a client service manager, project manager, and technical lead. She has developed a niche in providing environmental consulting services to California airports for more than 15 years.


Polytechnique staff hold the following professional licenses:

  • Registered Professional Engineer (CA: Civil, Chemical)

  • Registered Professional Geologist (CA: PG)

  • Registered Environmental Manager (REM)

  • Fellow, American Society of Civil Engineers (F. ASCE)

  • Envision Sustainability Professional (ENV SP) 

  • Certified Associate in Project Management (CAPM)

  • Certified Waste Management Professional (CWMP)

Polytechnique holds the following diversity certifications:

  • City of Los Angeles: Small Business Enterprise (SBE), Disadvantaged Business Enterprise (DBE), and Woman-Owned Business Enterprise (WBE)

  • City of Long Beach: SBE and Very Small Business Enterprise (VSBE)

  • Los Angeles County Metropolitan Transit Authority (Metro) SBE

  • County of Los Angeles Community Business Enterprise (CBE)

  • California Public Utilities Commission (CPUC) Minority Business Enterprise (MBE) and WBE

  • Certified Unified Certification Program (CUCP) DBE



Polytechnique excels at balancing client, regulatory, and community demands while maintaining a focus on technical requirements. Our project managers have a reputation for delivering projects on schedule and within budget. Our staff has managed large on-call, multi-year contracts for the following state and local clients: 

  • California Department of General Services

  • California Department of Transportation

  • County of Los Angeles Department of Public Works

  • John Wayne Airport, Orange County

  • Los Angeles Metropolitan Water District

  • Los Angeles World Airports

  • San Francisco International Airport


Polytechnique staff have expertise in the following technical areas:

  • Air quality permitting and compliance

  • Storm water and drinking water quality

  • Hazardous materials and waste

  • Petroleum storage tank testing and compliance

  • Emergency planning and response

  • Site investigations, assessments, and remediation

  • Sustainability program development, planning, and reporting

  • Environmental Management System development and implementation

  • Solid waste studies and diversion for food waste, recyclables, and liquids

  • Sound insulation grants program support