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 3 Sanitary Sewer Review #1 5. The Applicant shall provide supplemental survey information showing existing utilities and any crossings that may be exposed during construction of the proposed sewer and manhole replacements. 6. The Applicant provided a spreadsheet with the projected off-site sewer demands based on the number of bedrooms for each residential dwelling. The flows calculated from the spreadsheet shall be utilized as part of the conveyance capacity study within the engineer’s report. The Applicant shall also include the sanitary sewer pipe capacity calculations in the evaluation. All capacity and flows are to be represented in gallons per day (GPD). 7. The Applicant will be responsible for ensuring compliance with Section 20-1 of the Township of West Orange Code. Specifically, Section 20-1.5f.5, indicates that any road opening must be backfilled with clean dense graded aggregate. Notes should be added to the plans indicating the same. On-Site Sanitary Sewer Comments 1. Sanitary laterals including sections of curb that will need repair shall be shown from all buildings requiring sewer to the proposed sanitary sewer mains on the Utility Plans. 2. Sheet SP-20 shows a force main between the southwestern-most structure and Building A. Please verify the purpose of this force main and identify what flows are proposed to be conveyed between these two structures. 3. In manhole SAN MH5, identify the invert elevation for the lateral from Building A. 4. The proposed water and sewer main alignments shall be reviewed and adjusted as necessary to minimize the number of crossings between utilities. 5. Provide a plan and profile drawing depicting the construction of the proposed force main from the pump station to the connection in Bakely Terrace. 6. The proposed water main, along with utility crossings, shall be shown on the utility profile drawings. 7. Submit engineering design plans for the proposed pump station shown on SP-23. The proposed sanitary sewer mains are to be revised so only a single gravity sewer enters the wet well. A grinder is to be provided on the influent pipe to the wet well. 8. On Sheet SP-48, the proposed sanitary sewer is shown within the pervious asphalt area with insufficient cover over the

he wet well. A grinder is to be provided on the influent pipe to the wet well. 8. On Sheet SP-48, the proposed sanitary sewer is shown within the pervious asphalt area with insufficient cover over the pipe. The Applicant should evaluate lowering the sewer to provide adequate cover or relocating it outside the pervious asphalt section. 9. A one-time supplemental sewer fee in accordance with Township’s ordinance §19-9. 10. The following construction details should be provided: a. Sewer service lateral detail and sewer main connection; b. Utility crossing