ANS Consultants to Board Secretary 01272026 4916 9454 3757 v1

CONSULTANTS, INC. Tel: (800) 545-ATUL 4405 South Clinton Avenue (908) 754-8383 South Plainfield, NJ 07080 Fax: (908) 754-8633 NJ EDA Approved Testing Laboratory •MBE/DBE Certified • NJ DEP Certified www.ANSConsultants.net Soil, Concrete, Masonry, Rebar, Asphalt, Structural Steel, Precast, Piles, Caissons, Fire-proofing, Roofing, Soil Boring, Concrete/Rock Coring, UST Removal, Environmental Testing &Reports January 27, 2026 West Orange Planning &Development Department 66 Main Street, Room 214 West Orange, NJ 07052 Attn. Ms. Jamilet Baquerizo Vita Planning Board Secretary Re: Steep Slope ordinance 2~-28 525 Northfield Avenue West Orange, NJ 07052 Block# 159.04, Lot# 1.01, 1.02 & 1.03 Planning Board Application No. PB-25-11 ANS File # ANV-6549 Dear Ms. Baquerizo Vite: This response letter has been prepared to address review comment 13 in accordance with a review memo prepared by CME Associates, dated December 22, 2025 for the above referenced project. The project needs to comply with the Township ordinance 25-28 regarding steep slope and natural features to the greatest extent possible. We have incorporated the ordinance requirements and provided compliance responses. 1). Identification of soil types on the property, with specific reference to highly erodible soils as identified by the United States Department of Agriculture Soil Conservation Service or other recognized authority; ANS: On-site soil in boring B-6 & B-7 which are the nearest to the existing railroad tie retaining wall to be removed indicated Silly Sands type "SM" soil. See sieve analysis reports in our SB report, Appendix-B. Boring Location are shown in geotechnical report previously submitted. 2). Erosion potential of exposed soils; ANS: None anticipated. We have recommended Friction Angle of 31 °. Existing railroad tie retaining wall base is at the elevation +393.00' at left end and +396.00' at right end. The elevation of ground of Lot 81.02, at the top of the slope above this retaining wall is 24 feet higher. This grade changes within 50 feet distance. The slope of the existing slope is 25.64°, which is flatter than our recommended friction angle of 31°. 3). Length, steepness and surface roughness of exposed slopes; ANS: Since existing slope will not be disturbed, its length, width and height will remain untouched, it has been stable and incident free for over 65 to 75 years, we do not

oughness of exposed slopes; ANS: Since existing slope will not be disturbed, its length, width and height will remain untouched, it has been stable and incident free for over 65 to 75 years, we do not anticipate any slope stability issue due to a retaining wall construction at the base. Proposed new tree planting will add in erosion prevention after tree roots hold the soil in few years of their growth. "~4NSwers to your construction inspection and testing needs." An equal opportunity employer