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Supporting Documentation · May 7, 2025

23 1345 014 PB25 02 111 Prospect Ave Engineering Review

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23-1345-014 – PB25-02 (111 Prospect Ave.) Page 3 of 4 4. Grading & Drainage 4.1. The Applicant and their experts shall provide testimony on the Stormwater Management Plan. Since the proposed improvements will disturb more than an acre of the site, the project is classified as a Major Development. Major Developments are required to provide groundwater recharge, stormwater runoff quantity control and stormwater runoff quality treatment. Based upon a reduction in impervious area, it appears that peak rates of stormwater runoff will be reduced for the 2 year, 10 year and 100 year events, without the need for stormwater detention or groundwater recharge. Furthermore, groundwater recharge is not required since the site is apparently located within the Metropolitan Planning Area. Finally, since there is less and ¼ acre net increase in impervious area (there is a reduction), water quality measures are not required. 4.2. It appears in the application that the quantities for Impervious Surface Coverage and Building Coverage on page 2, Section E., are transposed. This applies to both present and proposed quantities. 4.3. The southerly driveway is not just being reconstructed with new pavers, but the elevation of the driveway is also being raised. The Applicant shall provide testimony on the reason for this especially as it relates to the sight distance for motorists exiting onto Prospect Avenue from this driveway. 4.4. A new stormwater collection and conveyance system is proposed. The Applicant shall explain the rationale for the design particularly with respect to the placement of drainage inlets. 4.5. As required by the Township’s Stormwater Management Ordinance, a Stormwater Maintenance Manual was submitted. It is not clear if this maintenance plan also pertains to the portion of the existing drainage system that exists in the northern section of this site as well as in portions of the adjoining hotel known as the Residence Inn. It is imperative for the new system to function so that the entire stormwater collection and conveyance system on this site be covered by the Maintenance Manual. This includes the drainage structures and swale located within the properties of The Estate and the Residence Inn and behind the homes on Deerfield Drive. 4.6. The Applicant and their experts shall analyze the existing drainage system downhill of the proposed connection point to

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f The Estate and the Residence Inn and behind the homes on Deerfield Drive. 4.6. The Applicant and their experts shall analyze the existing drainage system downhill of the proposed connection point to determine if adequate capacity exists to accommodate the drainage flows from the new drainage collection and conveyance system. Even though it appears that site drainage patterns will not be changed, the addition of the collection and conveyance system changes the hydraulic analysis. 5. Soil Erosion & Sediment Control 5.1. The Soil Erosion and Sediment Control Plan shall be approved by the Hudson Essex Passaic Soil Conservation District. 6. Site Lighting 6.1. A Lighting Plan with lighting fixture details and iso-footcandle levels was submitted. The Applicant shall provide testimony regarding the proposed site’s compliance with Township Ordinance §25-14, related to lighting levels. The Applicant shall also address any potential light spillover onto adjacent residential properties including the effects of glare. 7. Landscaping 7.1. The Applicant shall provide testimony regarding existing vegetation, vegetation previously removed, vegetation replanted and any other related removals, replacements, and new planting areas. 8. Utilities 8.1. The Applicant shall confirm if new utility service lines, laterals, connections, or associated appurtenances are needed for the proposed improvements. The Applicant shall clean and televise the existing sanitary lateral and any roof drainage laterals intended to be reused prior to construction.

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