251203_42 ERW_Stormwater Report

TH R NO E S Engineering & Design, Architecture, Architecture, Surveying, Landscape CT P.C. Engineering & Design N W www.colliersengineering.com Copyright © 2025. Colliers Engineering & Design All Rights Reserved. This drawing and all the information contained herein is authorized for use only by the party for whom the services were contracted or to whom it is certified. This drawing may not be copied, reused, disclosed, distributed or relied upon for any other purpose without the express written consent of Colliers Engineering & Design. Doing Business as C O N S U L T I N G ENGINEERS + SURVEYING PROTECT YOURSELF ALL STATES REQUIRE NOTIFICATION OF EXCAVATORS, DESIGNERS, OR ANY PERSON PREPARING TO DISTURB THE EARTH'S SURFACE ANYWHERE IN ANY STATE R DESIGN POINT 2 ___________________________ PDA (perv.) PR 1A-P A = 13,167 SF CN = 78 TC = 5.9 MIN. CITY OF PITTSBURGH DEPARTMENT OF CITY PLANNING APPROVED: CITY _______________________ PLANNING COMMISSION _______________________ CHAIRMAN ATTEST: X X X 622 X X X X X X X X X X X X X X 621 D X X X X X X X X X X X X X X X X X X 624 X X X X X 9 61 X X D X 620 X X X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PER LAYOUT CHANGES X X X 62 6 X X X X 625 X X X X X 6 62 626 5 T T 627 BLNZ COR 7 BARN FFE: 62 7.00 625 625 62 7 625 6 62 6 62 625 625 L = 100 ' S =2.0 % SCF L = 36 ' S =0.97 % EAG LE R IDG (50') WAY E PDA (perv.) PR 1B-P A = 77,195 SF CN = 79 TC = 7.7 MIN. PDA (imp.) PR 1B-I A = 36,906 SF CN = 98 TC = 1.5 MIN. Jesse Cokeley NEW JERSEY LICENSED PROFESSIONAL ENGINEER LICENSE NUMBER: GE54006 COLLIERS ENGINEERING & DESIGN, INC. N.J. C.O.A. #: 24GA27986500 E SF 626 624 62 4 X 62 HOUSE GARAG FFE: 628.00 E FFE: 626.50 By: MICHAELA.NICODEMO . X 23 62 2024\24006174A\C-DRNG-42.dwg\C-X.XX-PROP. DRAINAGE MAP 12/03/25 X 6 1 X X X 622 FFE: 62 5.50 DATE X ARENA 5 62 624 . X X X X 623 SF L = 100 ' S =7.25 % DRAWN BY 62 L = 100 ' S =4.0 % SF 625 4 2 62 L = 84 ' S =8.33 % MN D X SF X X X X X X X X BC 619.5 625 X X X X X X X X 1 SCF 2 L =6 95 ' S =3.61 % X X X X DESCRIPTION X X X X X 5 62 . X X X X X X X D L = 103 ' S =10.90

MN D X SF X X X X X X X X BC 619.5 625 X X X X X X X X 1 SCF 2 L =6 95 ' S =3.61 % X X X X DESCRIPTION X X X X X 5 62 . X X X X X X X D L = 103 ' S =10.90 % REV SF 619 X X X D X D X X X X 618 623 X X X 622 X 9 X 622 0 62 61 7 61 8 PR 2-P A = 7,405 SF CN = 76 TC = 4.6 MIN. X 61 8 X X 61 PDA (perv.) X X X X X X X X X X X X X X X _______________________ _______________________ SECRETARY X DESIGN POINT 1 FOR STATE SPECIFIC DIRECT PHONE NUMBERS VISIT: WWW.CALL811.COM E T T A A T T S S R Y E 0 E T 8 S N 2 R I E JE Y T A U WW O EH R NG I H PRELIMINARY & FINAL MAJOR SITE PLAN FOR LEGEND SYMBOL WAYSTONE REALTY LLC PROPOSED RESIDENTIAL IMPROVEMENTS DESCRIPTION DRAINAGE AREA BOUNDARY TIME OF CONCENTRATION (Tc) PATH Tc PATH TYPE IDENTIFIER: SF = SHEET FLOW SCF = SHALLOW CONCENTRATED FLOW CF= CHANNEL/CONDUIT FLOW SF L = 10 ' S = 5.0 % BLOCK 106 LOT 24.01 LENGTH OF TC PATH TOWNSHIP OF WEST ORANGE ESSEX COUNTY NEW JERSEY SLOPE OF Tc PATH DRAINAGE AREA LABEL POA-BASIN LABEL-DRAINAGE AREA NO. PDA 1-B-7 A = 0.100 AC. CN = 76 TC = 4.8 MIN. WOODCLIFF LAKE Architecture, & Engineering Design, Landscape Architecture, Surveying, CT P.C. CURVE NUMBER Engineering Phone: 845.352.0411 & Design COLLIERS ENGINEERING & DESIGN, INC. DOING BUSINESS AS MASER CONSULTING TIME OF CONCENTRATION RehA (HSG C) 300 Tice Boulevard Suite 101 Woodcliff Lake, NJ 07677 DRAINAGE AREA SOIL TYPE (HYDROLOGIC SOIL GROUP) SCALE: DATE: AS SHOWN SOIL TYPE BOUNDARY DRAWN BY: 9/16/2024 CHECKED BY: MMN JF REVIEWED BY: PTH PROJECT NUMBER: 24006174A DRAWING NAME: C-DRNG-42 SHEET TITLE: 30 0 30 SCALE : 1" = 30' SELECT LINEAR UNIT OF MEASURE 60 PROPOSED DRAINAGE MAP SHEET NUMBER: 2 OF 3 UNAUTHORIZED ONLY MAPS WITHALTERATION THE LAND SURVEYOR OR ADDITION OR PROFESSIONAL TO A SURVEY OR ENGINEER'S ENGINEERING SEALMAP AREBEARING GENUINEATRUE LICENSED AND CORRECT LAND SURVEYOR COPIES OR OF THE PROFESSIONAL LAND SURVEYOR ENGINEER OR PROFESSIONAL IS A VIOLATIONENGINEER’S OF SECTION ORIGINAL 7209, SUB-DIVISION WORK AND 2, OPINION. OF THE NEW YORK STATE EDUCATION LAW. NOTE: DO NOT SCALE DRAWINGS FOR CONSTRUCTION.