The proposed project will be served by an onsite sanitary wastewater system rather than connection to a public sewer system. Sanitary flow from the proposed office building, storage warehouse, and accessory structures will be conveyed via buried PVC sanitary sewer laterals to a centralized commercial alternate design septic treatment system with a dedicated control shed and subsurface disposal field. Domestic water supply will be provided by the existing public water mains operated by the Jackson Township Municipal Utilities Authority, while wastewater treatment and disposal will remain fully onsite. The septic system is designed to maintain required horizontal setbacks from regulated wetlands and vertical separation from the seasonal high water table, and is intended to meet applicable nitrogen dilution and groundwater protection standards. Sewer piping will be installed with minimum cover and separation from water lines in accordance with state and local utility standards, and cleanouts will be provided to facilitate inspection and maintenance.

Based on flows of 0.125 gpd/square foot it is estimated that the total sewage flows for the office building will be 1,875 gallons per day (gpd). Based on flows of 15 gal/person/day, the warehouse will be 120 gpd for a total of 1,995 gpd for the entire site. Sewage will be treated by an on-site subsurface disposal system.

The groundwater quality (septic dilution) standard of the Township land use ordinance and the CMP require that development using an onsite septic system be located on a parcel that is of sufficient size to ensure that the resulting nitrogen concentration (TN) will not exceed 2 ppm at the property line of the parcel.

The onsite system avoids the need for offsite sewer extensions, limits disturbance beyond the project footprint, and allows wastewater to be managed in a controlled manner consistent with NJPC and municipal requirements.

Potential sewerage impacts are minimized through system design, siting, treatment performance, and regulatory controls that protect groundwater quality and adjacent sensitive resources. The project utilizes a commercial alternate design wastewater treatment system capable of achieving advanced nitrogen reduction, with effluent modeled using the Pinelands Septic Dilution Model to demonstrate a projected total nitrogen concentration of approximately 1.75 ppm at the 6.11-acre property boundary, which is below the applicable 2 ppm groundwater quality standard. The disposal field is sited to maintain required horizontal separation distances from regulated wetlands and vertical separation from the seasonal high water table, reducing the potential for nutrient migration, groundwater mounding, and hydraulic interference with adjacent resources. Sanitary piping is installed with required separation from potable water lines and equipped with cleanouts to prevent leaks and facilitate long-term maintenance. Operation and maintenance requirements, including a recorded legal agreement and maintenance manual, ensure ongoing system performance and accountability. By avoiding offsite sewer extensions, incorporating advanced treatment technology, and verifying compliance through nitrogen modeling, the project minimizes long-term impacts to groundwater quality and surrounding ecological systems.

The NJDEP Freshwater Wetland Geographic Information Systems (GIS) digital depicts freshwater wetlands along the southern property boundary and continue off site to the west, towards Toms River (refer to Figure 10: NJDEP Freshwater Wetlands Map). Wetlands are located within approximately 300 feet to