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mwater report nor the proposed peak flow rate in the hydrograph summary reports. Revise accordingly. 9. Table 5-1 on page 5 of the stormwater report states that the bioretention basin does not have a maximum drain time since underdrains are proposed which is incorrect. The capacity of the underdrain system must be sufficient to allow the basin to drain within 72 hours while still retaining moisture below the surface for uptake by vegetation. 10. The Point of Analysis #1 Table on page 6 shows that the proposed peak flow rate will be reduced for each storm event. However, it remains for the Applicant to demonstrate that the post-construction runoff hydrographs for the current and projected 2 year, 10 year and 100 year storm events will not exceed, at any point in time, the pre-construction hydrographs for the same storm events. H:\Legacy\Howell-FS1\SEC\West Orange\Zoning Board\1 15 WRZ0105 VO1 - Mavis Tire Supply, LLC\26-03-25 Review #2.dacx

= al Consulting & Municipal ENGINEERS A Subsidiary of Artheon, Inc. Chairman and Members of the West Orange Township Zoning Board March 25, 2026 Re: Mavis Tire Supply, LLC (ZB-25-07) Our File No. 115.WRZ0105.V01 (60001) Preliminary & Final Major Site Plan with ‘C’ & ‘D' Page 7 Variances and Tree Removal Permit - Review #2 11. The stormwater collection system calculations in the stormwater report must be revised to consider the stormwater conveyed through the existing 6” CIP upstream of the existing round inlet. 12. The stormwater report has a section which shows the results of several test pits performed on site. The test pit locations must be shown on the plans. At this time, our office cannot confirm if the required number of test pits were performed or if the minimum separation from the seasonal high water table to proposed basin was met. 13. The drainage area maps and hydrograph summary reports must be revised to include a separate drainage area within the ROW as sidewalk is now proposed. 14. The existing and proposed drainage area maps and hydrograph summary reports must be revised to separate the drainage areas between which stormwater enters the underground pipe system and which stormwater sheet flows off site. 15. The maintenance plan should be revised to include as-built construction plans of the stormwater management measures and copies of pertinent construction documents such as laboratory test results, permits and completion certificates. 16. The maintenance plan should be revised to note that the party responsible for maintenance must submit to the Township every May 1% an annual maintenance report including all preventative and corrective maintenance for the structural stormwater management measures incorporated into the design of the development. 17. The maintenance plan must be revised to include the language from §25-29.13 (Stormwater License and Inspection Requirements). 18. As stipulated in §25-29.12b7(d), the party responsible for maintenance of the site’s stormwater system must post a two-year maintenance guarantee in accordance with N.J.S.A. 49:55D-53. 19. The stormwater management operation and maintenance manual and any future revisions must be recorded upon the deed of record for the property. Prior to recording, the form of the deed must be approved by the Board Attorney and our office. 20. There is a discrepancy

future revisions must be recorded upon the deed of record for the property. Prior to recording, the form of the deed must be approved by the Board Attorney and our office. 20. There is a discrepancy between sheet 6 and the ‘Underground Basin Outlet Control Structure’ Detail on sheet 16 regarding the rim elevation. Revise plans accordingly. 21. There is a discrepancy between sheet 7 and the ‘Outlet Control Structure #2 Detail’ on sheet 15 regarding the invert of the 6” pipe. Revise accordingly. 22. The Drainage & Utility Plan (sheet 7) shows an existing manhole at the southeast corner of the site which could not be opened. The plans must be revised to clarify the purpose of this manhole and to show any associated piping. In their February 19, 2026 letter, Messrs. Ritchie and Freud state that they are working with project surveyor to identify the purpose of this manhole, and this information will be provided as a condition of approval. 23. Sheet 7 shows a proposed storm cleanout within the bioretention basin at elevation 619.39. This will result in the separation between the underdrain and the sand layer being less than the minimum three inches. Revise to ensure the minimum separation is met. H:\Legacy\Howell-FS1\SEC\West OrangelZoning Board\ 15 WRZ0105.VO1 - Mavis Tire Supply, LLC\26-03-25 Review #2 docx

ENGINEERS A Subsidiary of Artheon, Inc. —— Ove en & Municipal MASSOCIATES Chairman and Members of the West Orange Township Zoning Board March 25, 2026 Re: Mavis Tire Supply, LLC (ZB-25-07) Our File No. 115.WRZ0105.V01 (60001) Preliminary & Final Major Site Plan with ‘C’ & ‘D’ Page 8 Variances and Tree Removal Permit - Review #2 24. The ‘Doghouse B Inlet Detail’ on sheet 14 and ‘Type B Inlet’ on sheet 15 should be revised to include a N-Eco Curb Piece. 25. The ‘Outlet Control Structure #2 Detail’ on sheet 15 must be revised to provide a trash rack on the 0.6’ weir. 26. The ‘Outlet Control Structure #2 Detail’ on sheet 15 shows a 2.5” PVC pipe in the structure noting “Stopcock gate to be closed for normal operations”. The Applicant must clarify the purpose of this pipe. 27. There is a discrepancy between the sand layer callout and Note #2 on the ‘Bioretention System Detail’ on sheet 15 regarding the required thickness of the sand layer. This discrepancy must be resolved. 28. The ‘Bioretention System Detail’ on sheet 15 includes a callout for a 6” gravel layer. However, the detail shows 3” of stone under the underdrain pipe and 6” of stone above the underdrain pipe. Therefore, the thickness of the stone must be 6” plus the O.D. of the underdrain pipe. This discrepancy must be revised. 29. The ‘Bioretention System Detail’ on sheet 15 should be revised to note the size and type of underdrain pipe that is proposed. 30. The ‘Bioretention System Detail’ on sheet 15 should be revised to note that the gravel layer must 0.5 inch to 1.5 inch clean, broken stone or pea gravel. 31. The ‘Bioretention System Detail’ on sheet 15must be revised to include a note which states “To ensure proper system operation, the permeability rate of the gravel layer must be at least twice the design permeability rate of the sand layer’. 32. The ‘Bioretention System Detail’ on sheet 15 should be revised to specify the minimum permeability rate required for the soil planting bed and the sand layer. 33. The ‘Bioretention System Detail’ on sheet 15 should be revised to note the elevation of the bottom of the gravel layer. 34. The ‘Bioretention System Detail’ on sheet 15 should be revised to provide specifications for the soil planting bed which complies with Chapter 9.7 of NJ BMP manual. 35. The ‘Bioretention System Detail’ on sheet 15 should be revised to provide a note

d be revised to provide specifications for the soil planting bed which complies with Chapter 9.7 of NJ BMP manual. 35. The ‘Bioretention System Detail’ on sheet 15 should be revised to provide a note which states that “The soil bed material must be placed in lifts not to exceed 6 inches. Additional materials may be necessary to account for settling over time.” 36. The ‘Bioretention System Detail’ on sheet 15 should be revised to include a note which states that “The minimum density of vegetation within the system is 85%.” 37. The ‘Underground Basin Outlet Control Structure’ Detail on sheet 16 should be revised to show the proposed height of the 4’ weir and the vertical distance from the top of slab (elev. 617.75) to the bottom of the 8” reinforced concrete lid. 38. The ‘Underground Basin Outlet Control Structure’ Detail on sheet 16 shows that the invert of the 48” pipe will be at elevation 617.75 whereas the ‘48” HDPE Schematic Underground HiLegacy\Howel-FS1\SEC\West Orange\Zoning Board\ 15 WRZ0105 VO! - Mavis Tire Supply, LLC\26-03-25 Review #2 docx

in ove "a & Municipal ENGINEERS "ASSOCIATES, A Subsidiary of Artheon, Inc. Chairman and Members of the West Orange Township Zoning Board March 25, 2026 Re: Mavis Tire Supply, LLC (ZB-25-07) Our File No. 115.WRZ0105.V01 (60001) Preliminary & Final Major Site Plan with ‘C’ & ‘D’ Page 9 Variances and Tree Removal Permit - Review #2 Basin Detail’ on the same sheet shows the bottom of basin elevation (6” minimum below the 48” pipe to also be at 617.75. This discrepancy must be resolved. D. LANDSCAPING COMMENTS 1. Due to soil volume being a limiting factor for a tree, provide one (1) CCR (Redbud) in lieu of the middle QC (Scarlet Oak) within a grouping of 3 QC. Also, provide an oak in the white oak family due to bacterial leaf scorch (BLS). To maintain the same quantity of shade trees, move one (1) oak to the northeast corner of the site. 2. Revise the plans to provide CCR (Redbud) in lieu of proposed ASL (Serviceberry) to avoid providing the two (2) hosts required for cedar apple rust (Juniperus species). 3. To reduce damage to the existing Norway Spruce near Prospect Avenue, remove the section of sidewalk and shift the proposed row of shrubs closer to the parking stall. This will reduce damage to the tree as well as reduce the need to limb the tree to seven (7) feet above final grade. 4. Revise the plans to include the following note to indicate: “If existing trees within the twenty (20) foot buffer easement should fail due to construction damage, additional plant materials may be required at the discretion of the Township Engineer.” E. LIGHTING COMMENTS 1. Review and revise the plans to indicate proposed timers and hours of operation. Our office recommends light levels be reduced or turned off after hours of operation to reduce light pollution. 2. Revise the plans to provide the catalog cuts and ordering information for the proposed light pole for further review. The Applicant is hereby advised that any revised plans or other documents submitted to the Board should be accompanied by a cover letter which addresses each of the comments in this review letter and also details any other changes that have been made to the plans as these may not be readily apparent. H)\Legacy\Howell-F$1\SEC\West OrangelZoning Board\1 15 WRZO105 VO1 - Mavis Tire Supply, LLC\26-03-25 Review #2.docx