24 09 09 CME Review 2

— _ Consulting & Municipal ee ENGINEERS Chairman and Members of the West Orange Orange Township Zoning Board September 9, 2024 Re: PSE&G Company (ZB-24-06) Our File No. 115.WRZ0155.V04 Preliminary & Final Site Plan with ‘C’ and ‘D’ Page 5 Variances and Tree Removal Permit - Review #2 d) Item #50 — Parking plan showing spaces, size and type, aisle width, curb cuts, drives, driveways, and all ingress and egress areas and dimensions. It shows on sheet 792788 of the West Orange Switching Station plans that the existing sidewalk along the Prospect Avenue and Mt. Pleasant Avenue site frontages is to be removed. However, it shows on sheet 3 of the Site Plan drawings that the existing sidewalk is to be removed/replaced if necessary. This discrepancy must be resolved. Please note that our office is opposed to removal of the existing sidewalk along the site frontages. Sheet 792796 includes a Standard Concrete Driveway and Concrete Apron detail. Therefore, the plans must be revised to show where a concrete driveway and concrete apron are proposed. Sheet 792797 includes a Typical Bollard Detail. Therefore, the plans must be revised to show the locations where bollards are proposed. Based on our review, we find that the following utility conflicts exist on the West Orange Switching Station plans: a) Existing electric line and proposed manhole MH-01 b) Existing gas line and proposed manholes MH-03 and MH-04 and storm pipe SD- 05 c) Existing electric line and proposed manhole MH-04 d) Existing gas line and proposed manhole MH-06 e) Existing duct bank and proposed storm pipe SD-10 Based on our review, it appears that utility conflicts may exist at the following locations: a) Existing electric line and proposed storm pipe SD-04 b) Existing duct bank and proposed storm pipe SD-21 c) Existing duct bank and proposed storm pipe SD-22 d) Existing gas and electric lines and proposed storm pipe SD-10 It shows on the plans that Basins BR-04 and BR-05 will be located very close to the adjoining drive paths. The Applicant should address the Board regarding the need to install guide rails to prevent vehicles from driving into the basins. C. DRAINAGE COMMENTS 1. The proposed development will result in the disturbance of more than one acre. As a result, it is classified as a Major Development which requires that the project be designed to meet the stormwater runoff

roposed development will result in the disturbance of more than one acre. As a result, it is classified as a Major Development which requires that the project be designed to meet the stormwater runoff quality, quantity and groundwater recharge standards using green infrastructure. We note that trench drains are proposed adjacent to each bioretention basin to prevent off-site drainage from entering the bioretention basins. The flows from the trench drains will connect to a separate stormwater conveyance system which will discharge to the ‘S:\West Orange\Zoning Board\1 15 WRZ0155 V04 - PSE&G Company\24-09-09 Review #2 docx