Environmental consulting and engineering services provide design planning and assessment, project management, permit acquisition and other services. Environmental consulting services help businesses and municipalities prepare environmental impact statements, comply with air quality regulations, and clean up contaminated soil, solid waste, and hazardous waste. An environmental consulting and engineering service provides site remediation, risk assessment, environmental policy information, and regulatory advice. Environmental engineering services specialize in areas such as water supply and treatment, wastewater conveyance and treatment, environmental health and safety, and noise pollution. An environmental engineering service helps businesses and municipalities remove contaminants from polluted sites such as closed landfills. Depending on the business transaction, an environmental consultant may conduct an environmental site assessment (ESA) prior to the transfer of a property.