<human>: What are the differences between a septic system and a sewage system?
<bot>: The main difference between a septic tank and a sewage system is that a septic tank is designed to treat waste water from a building’s plumbing, while a sewage system is designed to handle wastewater from a whole community. A septic tank typically has an anaerobic environment, which means it does not have oxygen present, whereas a sewage system usually contains aerobic bacteria that help break down organic materials in the wastewater. Additionally, a septic tank generally requires regular maintenance, while a sewage system is usually monitored by a municipality or other governing body.