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Town of Millsboro Wastewater Treatment and Disposal System



Division of Water

Published: March 26, 2025
Comments Due: April 10, 2025

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DNREC Notice No. WR20250107
Non-Discrimination Policy

Town of Millsboro Construction Permit

This office has under consideration the application of:

Applicant: Town of Millsboro
Location: White Farm, Hardscrabble Road, Millsboro DE 19966
Parcel(s): 133-16.00-75.03 and 133-15.00-30.00

Project Description: Town of Millsboro has submitted an application for a Construction Permit for an On-site Wastewater Treatment and Disposal System for a new wastewater treatment plant. The system has been designed with an initial Phase 1 capacity of 1.7 million gallons per day and would be constructed to allow for an expansion to a future Phase 2 capacity of 3.0 million gallons per day of wastewater. The system consists of screening & grit removal, a Sequencing Batch Reactor that will provide secondary treatment and nutrient removal, disk filters for tertiary treatment, and a UV disinfection system with a secondary disinfection system. The treated effluent is pumped to Rapid Infiltration Basins and spray irrigation fields for disposal.

Town of Millsboro Operating Permit

This office has under consideration the application of:

Applicant: Town of Millsboro
Location: White Farm, Hardscrabble Road, and 302 E State Street, Millsboro DE 19966
Parcel(s): 133-16.00-75.03; 133-15.00-30.00; 133-17.14-18.00 and 133-17.14-17.00

Project Description: Town of Millsboro has submitted renewal applications for an Operating Permit for an On-site Wastewater Treatment and Disposal System and a Spray Irrigation System. The system has been designed to treat and discharge an average flow of 1.15 million gallons per day of wastewater. The system consists of a biological nutrient removal system with membrane filtration and UV disinfection. The treated effluent is pumped to Rapid Infiltration Basins and beneficial reuse spray irrigation fields for disposal. The spray irrigation fields are located on approximately 82.24 acres at the White Farm on the north side of Hardscrabble Rd (SR20), west of Niblett Dr, east of Gov. Stockley Rd (SR432). Additional spray irrigation fields are located on approximately 8.75 acres at the Millsboro Middle School located at 302 E. State St. The Operating Permits are interim permits associated with a Construction Permit application for the Town’s new wastewater treatment plant.

Find the application and other relevant information about this application at de.gov/dnrecnotices

For questions regarding the application and plans, please contact:

Commercial and Government Services Section
DNREC Div. of Water
89 Kings Highway, Dover, DE 19901
(302) 739-9948
Commercial_Government_LegalNotice@delaware.gov

A public hearing on the above applications will NOT be held unless the Secretary of DNREC determines that a public hearing is in the public interest or if a written meritorious objection to the application is received within 15 days from this notice. A public hearing request shall be deemed meritorious if it exhibits a familiarity with the application and provides a reasoned statement of the action’s probable impact. 

Please submit all written comments and/or a meritorious request for a public hearing to the email address Commercial_Government_LegalNotice@delaware.gov.





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