18 2026 02 12 Crestmont CC Steep Slope Analysis Exhibits

Date: 2/17/2026 Time: 09:35 User: tgreen Style Table: Langan.stb Layout: EX01 Document Code: EX02-101049802-0103-CG101-0101 © Langan2024 www.langan.com 300 Kimball Drive Parsippany, NJ 07054 T: 973.560.4900 NJ Certificate of Authorization No. 24GA27996400 F: 973.560.4901 Langan Engineering and Environmental Services, LLC STEEP SLOPE DISTURBANCE CALCULATIONS Slope Total Area (SF) Total Area (AC) Maximum Allowable Disturbed Area (%) Proposed Disturbance (SF) Proposed Disturbance (AC) Proposed Disturbance (%) Condition 0% to 10% 4,985,211 114.44 100% 103,978 2.39 2.1% C 10% to 14.99% 816,502 18.74 60% 25,567 0.59 3.1% C 15% to 19.99% 324,314 7.45 40% 20,096 0.46 6.2% C 20% to 24.99% 142,084 3.26 20% 5,807 0.13 4.1% C 25% and over 151,136 3.47 0% 16,460 0.38 10.9% V Abbreviations: V - Variance W - Waiver C - Compliance Notes: 1. Maximum allowable disturbed area percentages referenced from Table 1 in accordance with Section 25-28.8.b. 2. The total area of slopes equates to the existing lot area of Block 174 Lot 1.01 (146.93± acres) in addition to the proposed land disturbance within the existing Eagle Rock Avenue right-of-way (0.43± acres). Proposed slope disturbances include the disturbances within the existing Eagle Rock Avenue right-of-way. EFFECTIVE LOT AREA CALCULATIONS BLOCK 174 LOT 1.01 Item Area (AC) Usable Lot Area (%) Adjusted Area (AC) Existing Lot Area 146.93 - 146.93 Wetlands, Wetland Transition Areas, State Open Waters, Floodways, Riparian Zones, Lands Within 100 feet of a Cliff Face 22.66 0% 0.00 Slopes 0% to 10% 94.25 100% 94.25 10% to 14.99% 17.16 60% 10.30 15% to 19.99% 6.80 40% 2.72 20% to 24.99% 2.97 20% 0.59 25% and over 3.10 0% 0.00 Effective Lot Area (AC) = 107.86 Notes: 1. Usable lot area percentages refereced from Table 2 - Effective Lot Area in accordance with Section 25-28.8.d. 2. In accordance with Section 25-28.8.e, all wetlands, wetlands transition areas, state open waters, floodways, riparian zones, lands within 100 feet of a cliff face and lands within 100 feet of a ridge line area treated as 100% lot reduction and are excluded from effective lot area and shall be counted once as a 0.0 area of disturbance and not result in a further reduction of usable lot area. For the purpose of the calculations shown in this table, the total area of the natural resource features has been subtracted from the existing lot area, and the slope areas

duction of usable lot area. For the purpose of the calculations shown in this table, the total area of the natural resource features has been subtracted from the existing lot area, and the slope areas within the natural resource area limits have been excluded so as to not result in a further reduction of usable lot area.2/12/2026