Our environmental team assists our clients with every step of the project, from conception to completion. A hallmark of all Impact Sciences’ environmental analyses is the presentation of often complex and scientific information in a clear, concise, and straight-forward manner that is readily understood by the trained professional and the lay-person. We have found over the years that this approach facilitates a project’s transition from proposal to reality by ensuring that all concerned have a common point of understanding about the consequences of decisions related to the environment. Our services include:

  • Project Development Assistance
  • CEQA/NEPA Compliance Services
  • Categorical Exemptions/Categorical Exclusions
  • Addendum to previously certified EIRs/Negative Declarations
  • Initial Studies/Negative Declarations
  • Project and Program EIRs
  • Tiered CEQA documents
  • Master Environmental Assessments
  • Environmental Assessments/Finding of No Significant Impact
  • Environmental Impact Statements
  • Combined CEQA/NEPA documents
  • CEQA Findings/Record of Decision
  • Regulatory Permitting and Management
  • Mitigation Monitoring
  • Peer Review and Expert Witness Testimony

Air Quality and Greenhouse Gas Analysis

Impact Sciences offers personalized and comprehensive air quality and greenhouse gas services to our public and private sector clients. Our Air Quality team has produced complex air quality and greenhouse gas assessments; permit applications; and emission reports for residential, commercial, institutional, and industrial projects. We maintain an excellent working relationship with air quality districts throughout California and our team keeps up to date with the constantly changing regulatory environment.

Today’s environmental documents require skills and advanced tools to assess the air quality and greenhouse gas impacts of new development projects and regulated industries. Diesel emissions, toxic air contaminants, odors, and other nontraditional air quality issues may arise for even the simplest projects. Sustainability has become a key issue for addressing greenhouse gas and climate change impacts. Impact Sciences’ Air Quality and Greenhouse Gas team brings diverse experience and skills to allow us to address these and other issues. As a result, we are able to provide innovative, solution-oriented approaches to meet our clients’ objectives, while demonstrating compliance with federal, state, and local air quality and greenhouse gas requirements.  Our services include:

  • CEQA/NEPA Air Quality and Greenhouse Gas Assessments
  • Permitting of New and Modified Facilities
  • Title V Permitting
  • Regulatory Compliance Assistance
  • Compliance Auditing
  • Air Quality Dispersion Modeling
  • Health Risk Assessments
  • Odors Assessments
  • Emission Inventories and Reporting
  • Greenhouse Gas Emission Inventories and Assessments
  • Climate Action Planning
  • Air Quality and Greenhouse Gas Mitigation Strategies


At Impact Sciences, our comprehensive noise assessment gives a whole new meaning to “making sound decisions.” Noise impact regulations are constantly evolving and becoming increasingly more stringent. Yet, our specialists are equipped to help you navigate even the most complicated compliance issues. Well versed in an array of large and small projects, we conduct a comprehensive analysis and identify any potential nuisance to the nearest noise-sensitive receptors.

First, we conduct an environmental noise survey that supports a thorough assessment of the background noise profile in the area. We analyze pertinent data, establish comprehensive noise emissions criterion, and deliver an informative noise assessment report with clear, concise, and easy-to-read mitigation measures.

Our experts understand that each project faces its own unique noise challenges. We have prepared noise and vibration analyses for the following types of projects:

  • Federal, State & Local Government Compliance
  • Mixed-Use Developments
  • School Communities
  • Transit Systems
  • Traffic Mitigation
  • Residential Uses
  • Commercial Developments
  • Utilities Providers

Working as a part of your team, we pride ourselves on delivering noise assessment services tailored to the needs of your project.