Asbestos, Lead-Based Paint Surveys, Mold and Indoor Air Quality Assessment
City of Rowlett
dse is performing air quality monitoring and sampling services for the City of Rowlett to identify chemical components of possible off-gassing from a neighboring landfill. The long-term study consists of air quality monitoring utilizing both real-time air monitoring with a multi-gas/photo-ionization instrument and eight-hour air sampling using Summa canisters and flow controllers. The samples are collected to identify potential chemicals of concern and to attempt to determine possible odor source chemicals. The team locates "hot-spots" with Global Positioning Units (GPS) and records the data location and concentrations. The results are documented in writing and visually presented utilizing aerial maps and GPS coordinates. The results of the air quality monitoring events are assessed against the Texas Commission on Environmental Quality (TCEQ) Effective Screening Levels (ESLs) to determine potential exposure risk to the surrounding population.