Performance sewage treatment systems are a higher performing Aerobic Treatment System. The drainfield required is even smaller than a standard Aerobic system, and any effluent is cleaner.
The usage and requirements are the same as for an Aerobic system, however performance is better and cleaner.
Installing all types of septic systems is just part of being a site work contractor. SMC Contracting are certified in Palm Beach County with Performance Treatment Systems and are also registered contractors in Palm Beach County.
Usually when space is very small, or the area is close to a water source.