A listing of professionals issued Class E licenses authorizing them to build and install on-site wastewater treatment and disposal systems.

A listing of professionals issued Class A licenses authorizing them to perform site evaluations for on-site wastewater treatment and disposal systems.

A listing of professionals issued Class H licenses authorizing them to inspect, investigate and collect data to make determinations regarding the present operational condition of on-site wastewater treatment and disposal systems.

A listing of professionals issued Class B licenses authorizing them to design conventional on-site wastewater treatment and disposal systems which utilize gravity distribution systems for seepage beds and seepage trenches and certain standardized pressure distribution and disposal systems.

A listing of professionals issued Class C licenses authorizing them to design conventional, alternative and experimental on-site wastewater treatment and disposal systems and all pressure distribution systems.

A listing of professionals issued Class F licenses authorizing them to remove, transport or dispose of the solid and liquid contents of septic tanks, cesspools, grease traps, seepage pits, holding tanks, portable toilets or other wastewater treatment or disposal facilities.

A listing of professionals issued Class A licenses authorizing them to perform percolation tests for on-site wastewater treatment and disposal systems.

A look at various factors related to births in Delaware.

A look at various factors related to deaths in Delaware.

A listing of professionals issued Class I licenses authorizing them to inspect all new, replacement and repairs of small gravity on-site wastewater treatment and disposal systems, and gravity on-site system component replacements and to perform cover inspections for above grade gravity on-site wastewater treatment and disposal systems.