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

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Same meeting

Agenda Town Board agenda — February 4, 2026
Minutes Town Board minutes — February 4, 2026
Other 5A.-APPLICATION
Other 5A.-MEMO
Other 5A.-SIGNED CIVILS
Other 5A.-ELEVATIONS & FLOOR PLAN
Other 5A.-SEAF
Other 5A.-SITE PLAN CHECKLIST
Other 5B.-SITE PLAN
Other 5B.-APPLICATION
Other 5B.-LETTER OF SUBMITTAL
Other 5B.-PROPERTY SURVEY
Other 5B.-NARRATIVE
Other 5B.-PRELIM. SEWER PLANS
Other 5C.-SKETCH
Other 5D.-CODE REVIEW UPDATES
Other COMPREHENSIVE PLAN DRAFT

Text · page 2 of 351

Engineer’s Report  December 2025

  TABLE OF CONTENTS

I.  INTRODUCTION .............................................................................PAGE 3

II.  DISCUSSION ....................................................................................PAGE 4
  A.  SANITARY SEWERS...........................................................PAGE 4
  B.  WATER ................................................................................PAGE 4
  C.  STORMWATER MANAGEMENT .....................................PAGE 5

APPENDICES

A. STORMWATER CALCULATIONS AND MODELS

    PRE-DEVELOPED DRAINAGE AREAS
    PRE-DEVELOPED HYDROCAD MODEL RESULTS
    POST-DEVELOPED DRAINAGE AREAS
    POST-DEVELOPED HYDROCAD MODEL RESULTS
    DRAINAGE INLET DRAINAGE AREAS
    STORM SEWER SIZING SPREADSHEET (DRAINAGE COMPUTATIONS)

B. WATERLINE CALCULATIONS AND MODELS

    HYDRANT FLOW TEST
    WATERCAD MODEL
    PEAK INSTANTANEOUS WATER DEMAND CALCULATION

EXHIBITS:

  1.  Project Site Location Map
  2.  NYSDEC Environmental Resource Mapper
  3.  FEMA Firmette
  4.  Site Soil Map
  5.  Cultural Resource Information System (CRIS) Map

Greenman-Pedersen, Inc.  GPI No. WNY-2500056.00  Page 2