1240815StormWaterManagementReport

18 413 41 41 6 5 TOPSOIL 41 STOCKPILE 4 TRASH 7 41 AREA BYPASS 414 605 SF 416 415 0.014 AC 417 Cn=74 41 7 21 LF SHEET 418 FLOW 417 PROPOSED ADDITION

418 FLOW 417 PROPOSED ADDITION 1,790 GROUND FLOOR OFFICE 1,510 1ST FLOOR OFFICE 2 APARTMENTS 2ND FLOOR DA1 DA1 PARKING 8332 SF 18 73054 SF 419 0.191 AC 0.168 AC Cn=88 AC Cn=95 AC 419 420 EXISTING 92 LF 92 LF AC BUILDING SHEET FLOW TO REMAIN AC SHEET FLOW AC 420 421

421 420 San. Manhole 421 422.48 Rim 6 IE 8" Clay S 3 IE 8" Clay N 42 IE 8" Clay W 422 2 GV 1" GV GV 17 14 San. Manhole 421.70 Rim 414.87 IE 8" Clay S 414.70 IE 8" Clay N PLEASANT VALLEY WAY 575.40' Project No.: Calc.By: Page: CASEY & KELLER, INC. 512-516 PLEASANT VALLEY WAY, WEST ORANGE 1240815 JAA 258 MAIN STREET, MILLBURN, NJ 07041 Scale: File Name: Check.By: Date: (973) 379-3280 Fax: (973) 379-7993 PROPOSED DRAINAGE AREA 1" = 20' DA-EXISTING JAA

Check.By: Date: (973) 379-3280 Fax: (973) 379-7993 PROPOSED DRAINAGE AREA 1" = 20' DA-EXISTING JAA 9/11/25