26 02 04 Memorandum Engineering rcd 2 5 2026

Consulting & Municipal ENGINEERS ares A Subsidiary of Artheon Inc. Chairman and Members of the West Orange Zoning Board February 4, 2026 Re: 66 Whittlesey Avenue (ZB-25-11) Our File No. 115.WRZ0129.V01 Preliminary & Final Site Plan with ‘C’ and ‘D' Variances — Review #1 Page 4 5. It shows on the Grading Plan that 3 parking spaces are proposed behind the proposed addition. The plan should be revised to clarify if the existing paver driveway must be expanded to accommodate the additional parking. Our office is unable to determine the limits of the existing driveway from the information provided. 6. The Grading Plan includes a callout which states that an existing wall is to be removed. The limits of the proposed wall removal must be shown on the plan. 7. The Grading Plan must be revised to show the proposed limits of disturbance and the proposed area of disturbance. 8. The Grading Plan includes a Concrete Walk Detail. The location(s) where a concrete walk is proposed must be clearly shown on the plan. 9. The Grading Plan includes a Paver Walkway/Driveway Detail. The location(s) where a paver walkway/driveway is proposed must be clearly shown on the plan. 10. A pipe bedding detail must be added to the plan. 11. §25-29.2 of the Township Code defines a “Minor Development” as any land development and/or the construction of any site improvements that result in an increase in impervious cover by 400 sf that results in an increase of stormwater runoff but does not meet the definition of a major development. Based on our review, we find that the proposed development is classified as a minor development. 12. §25-29.3.c of the Township Code states that the stormwater management measures for minor development shall be designed to provide erosion control, groundwater recharge and stormwater runoff quantity control through the utilization of green infrastructure techniques as follows: a) Stormwater management facilities shall be designated to manage six inches of rainfall on all new impervious surfaces and meet the standards for runoff quantity and green infrastructure. b) Soil testing shall be performed in accordance with the current rules at N.J.A.C. 7:8. c) The minimum standards for erosion control established under the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39 et seq., and implementing rules at N.J.A.C.2:9 shall be met. d) Regular and

c) The minimum standards for erosion control established under the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39 et seq., and implementing rules at N.J.A.C.2:9 shall be met. d) Regular and effective maintenance shall be performed for all stormwater management facilities and shall be protected by the owner. 13. §25-29.9.a.1 of the Township Code stipulates for minor developments that for each square foot of increased impervious surface, six inches per square foot of stormwater shall be managed using green infrastructure practices as set out in Table 7. 14. The Applicant proposes the use of a drywell system to mitigate the increase in runoff from the site. It state in Table 7 that the use of a drywell is allowed only where the other listed methods cannot feasibly meet the requirements of this section. Therefore, the Applicant H:\Legacy\Howsll-FS1\SEC\West Orange Project FILES\115 WRZ0129 VO1 - Perez\26-02-04 Review #1