Environmental Investigators is run by one of Baton Rouge's most experienced mold assessors. Environmental site assessment. Environmental Investigators provides RSRA risk assessments as well as Phase I and Phase II environmental testing. Our services help commercial and real estate developers assess risk and avoid environmental liability. With 20 years of experience, a network of relationships with environmental regulators, a line to testing labs and some of the most comprehensive reports on the market our customers enjoy some of the fastest closing times in the industry. We also offer mold, asbestos, and lead paint inspections, threatened or endangered species surveys, and environmental services in response to weather-based national disasters.