© 2019 Baseline Environmental Consulting

Transportation Improvement

Baseline has worked on numerous highway and roadway improvement projects in the Bay Area and is familiar with Caltrans procedures. Baseline’s hazardous materials services for transportation projects include the evaluation of contaminants of concern in soil (e.g., aerially-deposited lead), groundwater, and structural materials (e.g., lead-based paint). Soil analytical results are often statistically analyzed prior to excavation to evaluate potential risks to human health and to minimize the generation of hazardous wastes for offsite disposal. Baseline’s air quality services for transportation projects include Air Quality Conformity assessments to analyze carbon monoxide and particulate matter (both PM10 and PM2.5) hot-spots; short-term construction emissions of criteria air pollutants; long-termoperational emissions of mobile source air toxics; and greenhouse gas emissions. Baseline staff are skilled in using quantitative air quality tools such as

CalEEMod, operational emissions of mobile source air toxics; and greenhouse gas emissions. Baseline staff are skilled in using quantitative air quality tools such as CalEEMod, EMFAC, and air pollutant dispersion models (CALINE and AERMOD). By working closely with Caltrans and local transportation authorities, Baseline has developed a unique knowledge related to large highway/roadway improvement projects and can implement assessment and investigation activities in a timely and cost-effective manner.

Recent projects that Baseline has worked on include: