26 06 17 Engineering Memorandum 2 rcd 6 17 2026

\RTHEO} BUILT ON LEGACY, DRIVEN BY PURPOSE 10. 1 12. 13. 14. 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. §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. The Applicant proposes the use of a drywell system to mitigate the increase in runoff from the site. It states 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 must demonstrate to the satisfaction of the Board that the other listed methods are not feasible for this project. Based on our review of the Drywell Sizing Calculation table on the Grading Plan, we find that the currently proposed system has not been designed to comply with the Township Code. Therefore, the proposed design must be revised to comply with the requirements in §25-29 of the Township Code. . As stipulated in §25-29.9.a.1 of the Township Code, the Applicant must submit all of the required components of the checklist for the site development stormwater plan at §25-29.11.c. The Applicant must demonstrate that all of the required information has been submitted to the Board. There is a discrepancy in the increase in impervious coverage between the Drywell Sizing Calculations and General Note #19. Revise accordingly. It appears that the design vehicle will hit the existing shed when maneuvering out of the proposed parking stalls. Revise accordingly. A separate discharge pipe should be provided for the drywell. 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\howellts1\seo\west orange\zoning board\115.wr20129,v01 - 66 whittlesey ave (perez)\review phase\eme & board prof review reports &

een made to the plans as these may not be readily apparent. h:\legacy\howellts1\seo\west orange\zoning board\115.wr20129,v01 - 66 whittlesey ave (perez)\review phase\eme & board prof review reports & correspondence\26-06-17 - engineering review #2.docx Page 4 of 4