Supporting Documentation · Apr 15, 2026
Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2
f6777d506bee83c79ba913bab178b45234e55066fd88f20823a02a45d6fdf50bIndexed text · page 301
Show all pagesA This is a beta release of the new ATC Hazards by Location website. Please contact us with feedback. ® The ATC Hazards by Location website will not be updated to support ASCE 7-22. Find out why, Hazards by Location Search Information _ Noro~~ulk 4' ~Nhite Plains o Address: 525 Northfield Ave, West Orange, NJ 07052, USA o Stamford. New f2ochellc -' Coordinates: 40.7705012, -74.2774591 0 Elevation: 385 ft Long ls;; Timestamp: 2024-08-27T17:48:58.307Z Mown Hazard Type: Seismic Reference Document: ASCE?-16 ~Go gie Princeton Map data ©2024 Google Report a map e«or Risk Category: II Site Class: C MCER Horizontal Response Spectrum Design Horizontal Response Spectrum Sa(g) Sa(g) 0.30 0.20 0.15 0.20 0.10 0.10
0.15 0.20 0.10 0.10 0.05 0.00 0.00 00 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Period (s) 00 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Period (s) Basic Parameters Name Value Description SS 0.282 MCER ground motion (period=0.2s) Si 0.059 MCER ground motion (period=1.Os) SMS 0.367 Site-modified spectral acceleration value SM1 0.089 Site-modified spectral acceleration value SDS 0.245 Numeric seismic design value at 0.2s SA SD1 0.059 Numeric seismic design value at 1.Os SA Additional Information Name Value Description SDC B Seismic design category Fa 1.3 Site amplification factor at 0.2s Fv 1.5 Site amplification factor at 1.Os CRS 0.935 Coefficient of risk (0.2s) CR t 0.944 Coefficient of risk (1.Os) PGA 0.173 MCEG peak ground acceleration
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