EVS 1026C - Chemistry and Biology of Natural Waters Add to Personal Catalog EVS 1026C - Chemistry and Biology of Natural Waters College This course provides an introduction to the biological and chemical processes present in water and wastewater treatment systems. It emphasizes the unit operations and analysis of water and wastewater treatment processes. Attention is placed on the assessment of natural waters with regard to raw water quality and the impact of wastewater effluent. Click here for the Summer 2026 Class Schedule Click here for the Fall 2026 Class Schedule