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Index of State of Delaware Business Licenses and Registrations

Spray Irrigation

Beneficial Reuse of Treated Wastewater

Permits issued to a Public Utility, Municipality or Industry to construct and operate a wastewater treatment and spray irrigation system. Spray Irrigation is defined as the controlled application of treated wastewater to a vegetated soil surface. Wastewater spray irrigation systems may be utilized on agricultural land, forest lands and other designated areas. The applicant must develop and submit for the Department’s review and approval, an operating protocol designed to ensure the high-level disinfection criteria is met before the wastewater is released to the storage system or to the wastewater reuse system.

More Information

Department: DNREC

Division: Water

Office: Ground Water Discharges Section


Permit issued for a maximum term of 5 years


Application Forms

Construction Permit Application: Irrigation Rescource Page/Spray-Irrigation-Construction-Permit-Application.pdf

Operation Permit Application: Irrigation Rescource Page/Spray-Irrigation-Operation-Permit-Application.pdf

Applicable Laws

Applicable Rules and Regulations


The Groundwater Discharges Section can be contacted 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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