The product is a textbook titled "USA-Environment-Ecology-EPA-Sanitary Engineering-Water Treatment Plant Ops-Vol 2" authored by Kenneth D. Kerri. Published in 1995 by California University Sacramento office of water programs, this second edition textbook is 776 pages long and covers subjects related to environmental protection, specifically environmental/water supply and waste management. It is designed for high school and adult education levels, focusing on intermediate level content in the field of business, economy, and industry. The book provides in-depth knowledge on water treatment plant operation within the environmental context. This is in really good condition except for the staining on the white edges of the paper. The rest of it is in good condition.