Rehoboth’s approved wastewater projects include a pump station, a force main and an ocean outfall.
Status Fall 2017: Multiple projects are currently underway with an end goal of redirecting discharge of the City's highly treated effluent from the canal to a point a mile off shore in the ocean. The projects that are now visible to homeowners include:
- A new 24" discharge pipe from the wastewater treatment plant, along State and Canal Streets and Henlopen Avenue. Temporary road closures will occur between now and Spring 2018.
- An extension to the above discharge pipe from Henlopen Avenue, to be placed under the dunes at Deauville Beach and approximately 6000 feet into the ocean. The Deauville parking lot is now closed for construction through March 2018. The tennis courts remain accessible via foot.
Permits and plans: On May 25, 2017, Delaware Department of Natural Resources and Environmental Control (DNREC) Secretary Shawn M. Garvin approved and signed the Secretary’s Order for the Rehoboth Beach ocean outfall which includes all required DNREC permits to move forward with construction. The U.S. Army Corps of Engineers will be issuing a permit along with a Sediment and Stormwater Permit from the Sussex Conservation District, and DelDOT permits for work on state road right-of-ways.
The approved pipeline alignment begins at the existing Rehoboth Beach Wastewater Treatment Plant, follows the Lewes and Rehoboth Canal north to Grove Park. The pipeline will then turn northeast to Henlopen Avenue and continue along Henlopen Avenue to the Deauville Beach parking area and terminate in the Atlantic Ocean, approximately 6,000 feet from the parking area. The 24-inch high-density polyethylene (HDPE) pipeline will be installed via horizontal direction drill approximately 3,000 feet and marine open-cut trench approximately 3,000 feet. Once the pipe is anchored in place with concrete collars, the open-cut trench will be backfilled. The terminus of the outfall pipe will consist of a 120 linear foot diffuser comprised of eight risers, 1.5 feet above the ocean floor, with four discharge ports per riser. The diffuser will be installed on pilings to ensure stability.
Want a quick overview? The Center for Inland Bays has produced a brief fact sheet, https://www.inlandbays.org/wp-content/documents/CIB_Rehoboth_Beach_Ocean_Outfall_Fact_Sheet_FINAL.pdf
Resources: Rehoboth’s permit applications and supporting documents, and a fact sheet and a draft NPDES permit are available on DNREC’s website http://www.dnrec.delaware.gov/Admin/Pages/Rehoboth-Wastewater-Projects-Info.aspx.
Documentation dating back to 2005, with a full history of the project can also be found on the City’s website: https://cityofrehoboth.civicweb.net/filepro/documents/7006