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Sussex County, DE
 
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A. 
For a property or properties located within the Unified Sanitary Sewer District the County may permit, upon written application and execution of a project construction agreement, the construction of improvements to, or expansion of, the sanitary sewer system where no existing sewer service is available.
B. 
The developer of such a property requesting the construction of a standalone sewer system or the extension of the existing sewer system shall pay all direct and indirect costs of the improvements to be constructed including but not limited to wastewater collection, local transmission and, if applicable, a proportion of regional wastewater transmission and treatment upgrades required to serve the proposed development property.
C. 
All construction performed by the developer shall be inspected for compliance with the project construction permit by the Engineer or by a consulting engineer selected by the County. The County shall set fees for the recovery of costs for said inspection services which shall be set during the annual Sussex County budget process.
D. 
All construction shall conform to the Sussex County Standards and Specifications issued by the Engineer. The standards may be amended from time to time by the Engineer to reflect changing trends in material, equipment and construction techniques. Amendments shall be effective immediately upon posting on the County website.
E. 
In the case where a standalone sewer system or the extension of the existing sewer system connects to an established area with available collection and transmission capacity previously funded by the County, a use of existing infrastructure agreement shall be required as outlined in Article XV.
A. 
All easement acquisitions necessary for the construction of a standalone sewer system or the extension of the existing sewer system shall be at the sole expense of the developer.
B. 
The developer shall be required to provide all improvements adequately sized to serve the proposed residential/commercial development and all tax parcels which were created from the original base parcel via minor subdivision(s). Provisions shall be made to extend sewer service, at a minimum slope, to the property line of all these adjoining parcels regardless of ownership or control.
C. 
In general, sewer lines shall be designed for the estimated contributory number of residential and/or commercial equivalent dwelling units (EDUs) to be served in the future based on zoning at the time of design plus a 10% allowance for future infill up-zoning in the sewer the basin.; provided, however, that such capacity determinations shall not be indicative of future zoning or land use decisions.
D. 
The design of extensions to existing sanitary sewage collection systems shall be based on site-specific flow data if adequate records are available. If no flow records are available, or when new systems are being established, the average flow design criteria shall not be less than 250 GPD per equivalent dwelling unit (EDU) or 175 GPD per manufactured home berthing space.
E. 
Gravity sewer mains and pump stations shall be designed using a peak flow equivalent based on the following equation:
Qmax/Qavg = (20+2 [EDU/10]0.5)/(5+2 [EDU/10]0.45)
Where: Qmax = Maximum rate of sewage flow and Q avg = Average daily sewage flow
F. 
All gravity sewers with three or more branch sewer connections shall be designed at minimum slope and maximum depth. This requirement shall apply to all sewers serving adjoining parcels regardless of the number of branch sewer connections.
Prior to the commencement of any construction of water or sanitary sewer facilities, the developer shall execute the standard County project construction agreement. Said agreement shall not be issued until the following requirements have been met by the developer:
A. 
Submission of plans and specifications for the proposed construction certified by a registered professional engineer, with said plans and specifications being subject to approval by the County.
B. 
Submission of a letter of application and affirmation of cost for review and approval by the County.
C. 
Submission of evidence that all required off-site easements have been acquired and recorded.
D. 
Payment of a construction, administration and inspection fee. This fee shall be set during the annual Sussex County budget process.
E. 
Payment of fees for the engineering design review. This fee shall be set during the annual Sussex County budget process.
Upon completion of construction of the water or sanitary sewer improvements and final approval of the same by the County, the developer shall convey all of its right, title and interest in and to said water and/or sewer improvements to the County, free and clear of any and all liens, claims, charges and encumbrances attaching thereto. Said transfer of the right, title and interest in and to said water or sewer improvements shall be accomplished by such documentation as the County Attorney shall deem necessary and appropriate.