20251208 WRP0179

Zayibeth Carballo, PE, PLS, PP, CME, CFM, CFS December 8, 2025 Township of West Orange Our File No. 115.WRP0179.V01 Re: West Essex Highlands, LLC Page 2 Sanitary Sewer Review #1 “In the downstream sewers, the peak dry weather flow does not exceed 80 percent of the depth of the pipe and the peak wet weather flow does not result in overflows or discharges from any unpermitted discharge location; and and the ability of downstream facilities to carry the flows proposed to be generated by the Project, signed and sealed by a licensed professional engineer;”. This analysis shall be included in the Engineer’s Report. c. Treatment Works Approval Forms; d. Specifications for the Proposed Sanitary Sewer Facilities signed and sealed by a licensed professional engineer. 2. All on-site sanitary sewerage facilities upstream of the proposed connection to existing manhole on Bakely Terrace including the proposed pump station, gravity sewer mains, manholes, and force main shall be privately owned and operated. 3. A licensed sanitary sewerage system operator will be required for this system. This comment is to be acknowledged and the information for the licensed operator will be required prior to issuance of any certificates of occupancy. 4. Sanitary sewer gravity mains, laterals and force mains shall be constructed at least three feet below proposed grade elevation. 5. All proposed sanitary sewer mains and water distribution mains must comply with the minimum separation requirements set forth in N.J.A.C. 7:14A-23.6 and N.J.A.C. 7:10-11.10. Sewer mains must be separated from water mains by a horizontal distance of at least 10 feet. If the horizontal distance is not obtainable, the sewer must be located at least 18 inches below the bottom of the water main pipe. When separation cannot be maintained, the sewer main shall be either concrete encased or constructed of ductile-iron pipe in accordance with the aforementioned regulations. Off-Site Sanitary Sewer Comments 1. Provide a key/location map for the existing downstream sanitary sewer proposed to be connected to. 2. The connection of the proposed force main is to be shown to EX-SANMH 1 on Bakely Terrace. In addition, manhole EX-SANMH 1 is to be replaced. 3. Replace existing manholes at all locations along Marie Terrace, Schmitt Road, and Marmon Terrace where sewer main replacement is proposed. 4. All existing sanitary sewer

-SANMH 1 is to be replaced. 3. Replace existing manholes at all locations along Marie Terrace, Schmitt Road, and Marmon Terrace where sewer main replacement is proposed. 4. All existing sanitary sewer laterals should be identified for replacement wherever sewer main replacement is proposed. The laterals shall be replaced from the cleanout to the new sewer main.