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Environmental Protection

Wastewater Treatment and Disposal Licenses (includes liquid waste hauler)

Percoloation Tester, Property Owners, Designers, Site Evaluators, System Contractor/Installer, Liquid Waste Hauler, and System Inspectors are all licensed by Division of Water

Licenses for wastewater treatment and disposal systems are issued to Percoloation Testers, Property Owners (doing their own percolation testing), Designers of wastewater treatment systems, Site Evaluators, System Contractor/Installers, Liquid Waste Haulers, and System Inspectors are all licensed by Division of Water, Ground Water Discharges Section.

More Information

Department: DNREC

Division: Water

Office: Ground Water Discharges Section


Please see links provided for more information.


Applicable Laws

Applicable Rules and Regulations


Kathy Wright can be contacted by email at and by phone at (302)739-9948.


This search covers most of the frequently requested licenses, certifications, registrations, and filings that the State of Delaware requires. However, this is not a fully exhaustive list of every possible requirement. Please consult with the appropriate state agencies to find out if there are additional requirements you must fulfill.

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