Environmental Monitoring, is EPA-mandated regulatory compliance that requires the City of Fort Smith to regulate wastewater and other discharges from industry and other non-domestic sources into the City’s Publicly Owned Treatment Works (POTW), thereby reducing the number of pollutants released into the environment. Fort Smith’s Environmental Monitoring program oversees both Pretreatment and Fats, Oils, and Grease (FOG).

Environmental Monitoring administers and enforces regulations to:

• Protect the city's wastewater collection system and treatment plants
• Protect the use and disposal of wastewater bio-solids from contamination
• Protect POTW personnel who may be affected by wastewater or bio-solids in the course of their employment and the general public
• Provide for and promote general health, safety, and welfare of the citizens of the city
• Maintain water quality in the receiving water of the state
• Comply with National Pollutant Discharge Elimination System Permit conditions, and any other federal or state laws to which the city is subject
• Identifies and monitors businesses that have the potential to discharge FOG materials into the city's sewer system.