TDC Environmental, LLC is an environmental consulting firm that conducts environmental regulatory compliance and technical studies, specializing in integrating science and pollution prevention to develop cost-effective solutions for environmental pollution problems. TDC Environmental assists its clients with managing and protecting water quality, pesticide regulatory interpretation and coordination, regulatory and scientific document review, water quality permit compliance, environmental impact analysis, and developing cost-effective solutions to water quality challenges. TDC Environmental is particularly well known for its work on pollutant source identification and development and implementation of pollution prevention strategies for water quality compliance. TDC Environmental has conducted stormwater and wastewater pollutant source identification studies for many water pollutants, including copper, diazinon, dioxins, and pyrethroid insecticides. Founded in 1999, TDC Environmental serves government agency clients, often in partnership with other environmental consulting firms.