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32 LF 6" HDPE ROOF OE YD 3 LEADER @ 1.0% HDPE @ 1.0% OE BIORETENTION AREA #1 UE OE RIM 684.00 2,855 S.F. CB 4 PP OE INV 681.09 (2,850 S.F. REQUIRED) C.O. RIM 679.90 TOP ELEV = 673.50 C.O. INV 675.57 UE YD 12-15 (TYP.) RIM 673.50 30 LF 6" PERF. BOTTOM ELEV = 673.00 131 LF 12" STOP OE INV 669.67 HDPE @ 0.0% 121 LF 12" STM MH 1 HDPE @ 1.0% HDPE @ 1.0% RIM 679.20 sections 7209N and 7301 of the New York State Education Law for any person, unless acting under the direction of a registered architect, licensed engineer or land surveyor to alter this drawing. If altered such R.A., P.E. or L.L.S. shall affix his or her seal, signature, the date,the notation "Altered By" and a specific description of the alteration. UE INV 675.74 N 12" All Rights Reserved. Reuse of these documents without the expressed written permission of CARMINAWOOD DESIGN is prohibited. WARNING it is a violation of article 145 31 LF 6" A Greensboro 48 LF 6" HDPE ROOF INV 674.21 SW, E RE OE HDPE @ 0.3% EX. PIPE TO DISCHARGE LEADER @ 1.0% DIRECTLY TO CB 12 . A BIT UE 17 LF 8" HDPE @ 0.5% 674 675 12" 170°-37'-13" OE 673 25 LF 8" 672 12"x6" TEE APPROX. LOCATION CONTRACTOR TO VERIFY LIMITS OF CB 12 671 RIM 682.90 HDPE @ 0.5% 670 INV 673.58 OF CEMETERY CEMETERY AND NOTIFY DESIGN UE END SECTION ENGINEER OF ANY POTENTIAL CONFLICTS INV 679.28 END SECTION END SECTION HEAD STONES NOT INV 668.80 INV 673.00 INV 669.00 Utica 673 LOCATED 127°-49'-44" END SECTION UE 673 YD 16-18 (TYP.) INV 669.57 RIM 673.50 14" INV 669.67 28" 14" Buffalo UE END SECTION OUTLET INV 673.00 W. INV: 682.97 STRUCTURE 355 LF 12" HDPE @ 1.0% RIM 674.80 EX. STORM SEWER TO BE (12" HDPE) 12" E-W INV 675.41 INV 668.93 RE-ROUTED. UE END SECTION 48 LF 12" 12" NW-SE INV 673.40 INV 669.57 HDPE @ 1.1% 73 LF 12" HDPE @ 1.0% EX. STORM SEWER TO BE 31 LF 6" RE-ROUTED. UE 10' WIDE EMERGENCY HDPE @ 0.3% SPILLWAY ELEV. 674.80 TOP OF CB 10 STM MH 2 LINE WITH LIGHT STONE FILL POND 675.30 BIORETENTION AREA #2 END SECTION PARKING 1,700 S.F. CB 11 12"x6" TEE 123 LF 12" RIM 679.50 RIM 683.00 RIP RAP FLUSH WITH SPILLWAY INV 675.00 RIM 678.00 INV 675.98 HDPE @ 1.1% INV 676.83 INV 678.55 (1,620 S.F. REQUIRED) LOT UE TOP ELEV = 673.50 INV 675.48 E BOTTOM ELEV = 673.00 INV 673.53 NW UE 20 LF 6" PERF. 40 LF 6" HDPE ROOF STOP Multifamily Development HDPE @ 0.0% LEADER @ 1.0% C.O. C.O. C.O. C.O. 146°-28'-21" PART OF L-11442, P-836 UE CONNECT DOWNSPOUTS TO 6" HDPE PERIMETER UE DRAIN @ 1.0%. COORDINATE DOWNSPOUT LOCATIONS WITH ARCHITECTURAL PLANS. UE YD 8 UE 209 LF 12" 1425 & 1475 Orchard Park Rd BUILDING W/ATTACHED GARAGES HDPE @ 0.8% RIM 681.90 INV 679.80 PROPOSED 1-STORY 6 UNIT BUILDING W/ATTACHED GARAGES 149°-26'-50" PROPOSED 1-STORY 6 UNIT UE F.F.E. = 682.80 F.F.E. = 682.80 63 LF 8" CONNECT DOWNSPOUTS TO 6" HDPE PERIMETER HDPE @ 0.5% PARKING DRAIN @ 1.0%. COORDINATE DOWNSPOUT UE LOT © CARMINA WOOD DESIGN LOCATIONS WITH ARCHITECTURAL PLANS. West Seneca, NY UE YD 9 SCRUB SHRUB WETLANDS (PSS) RIM 681.90 (APPROXIMATE LOCATION) INV 679.48 153°-18'-56" UE 32 LF 6" HDPE ROOF CB 9 LEADER @ 1.0% 8" RIM 681.00 UE 73 LF 8" INV 678.50 HDPE @ 0.5% UE 36 LF 8" Date C.O. C.O. HDPE @ 0.5% C.O. UE C.O. 32 LF 6" HDPE ROOF YD 11 LEADER @ 1.0% RIM 681.70 YD 10 INV 678.68 85 LF 8" RIM 681.90 UE HDPE @ 0.5% INV 679.11 UE No. Description 12" REVISIONS: 8" 11" 6" 8" 12" 7" 6" 6" 6" 12" 13" 6" 133°-32'-58" STORMWATER RUNOFF SUMMARY PROPOSED UTILITY LEGEND Drainage Plan - South TO DETENTION: EVENT PROP. RUNOFF (CFS) ELEVATION (FEET) STORAGE (CF) PROPOSED STORM SEWER ST 1-YEAR 1.94 671.04 5,335 PROPOSED SANITARY SEWER 6" SA DRAWING NAME: SCALE: 1"=30' 10-YEAR 2.82 672.95 15,013 25-YEAR 3.10 673.70 21,268 PROPOSED WATERLINE 1" W Drainage 100-YEAR 3.45 674.73 34,966 DIRECT: Plan - South PROPOSED CATCH BASIN CB EVENT PROP. RUNOFF (CFS) 1-YEAR 0.38 10-YEAR 1.12 PROPOSED YARD DRAIN YD 25-YEAR 1.57 Date: 5/22/26 100-YEAR 2.52 Drawn By: A. Pandolfe PROPOSED MANHOLE MH TOTAL SITE: Scale: As Noted DRAWING NO. EVENT EX. RUNOFF (CFS) PROP. RUNOFF (CFS) PROPOSED HYDRANT ASSEMBLY 1-YEAR 2.63 2.32 10-YEAR 25-YEAR 100-YEAR 8.17 11.66 18.97 3.94 4.67 5.97 PROPOSED GATE VALVE GV NOTE: FOR PROPOSED VALVE BOXES, CLEANOUTS, ETC., INSTALL A 3,000 PSI CONCRETE COLLAR AROUND THE ITEM AT GRADE. THE NOTE: BOUNDARY AND TOPOGRAPHIC INFORMATION PROVIDED BY OTHERS, CARMINA WOOD DESIGN ASSUMES NO RESPONSIBILITY FOR ITS ACCURACY. 30 0 30 60Ft. C-302 Project No: 23-4121 COLLAR SHALL BE A MINIMUM OF 6" WIDER, ON ALL SIDES, THAN THE 30' BOX, CLEANOUT, ETC. THE COLLAR SHALL BE A MINIMUM OF 6" THICK. Page 456 of 849