Southtowns Record

5A.-ENGINEER'S REPORT

Government
Town of Aurora
Board
Town Board
Meeting
Feb 4, 2026
Kind
Other
Topics
Water, sewer and drainage, Zoning and land use, Public safety

Original document

Same meeting

Text · page 17 of 351

Read the whole document on one page (all 351 pages, each with its own heading)

WNY-2500056.00_HydroCAD  extreme_precip_tables_output (29) 24-hr S1 1-yr Rainfall=1.88"
Prepared by Greenman-Pedersen, Inc  Printed 12/18/2025
HydroCAD® 10.20-7a s/n 04560 © 2025 HydroCAD Software Solutions LLC  Page 8

  Subcatchment AEP: Area to Eastern Property
  Hydrograph

  Runoff
  0.14  0.13 cfs
  0.13  extreme_precip_tables_output (29) 24-hr S1 1-yr
  Rainfall=1.88"
  0.12  Runoff Area=0.090 ac
  Runoff Volume=0.007 af
  0.11
  Runoff Depth>0.87"
  0.1  Flow Length=27'
  Slope=0.0521 '/'
  0.09  Tc=4.1 min
  CN=88
  Flow (cfs)

  0.08

  0.07

  0.06

  0.05

  0.04

  0.03

  0.02

  0.01

  0
  0  1  2  3  4  5  6  7  8  9  10  11 12 13 14  15  16  17  18  19  20  21  22  23  24
  Time (hours)