Stormwater Management Report 03302026

A 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