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P:\16PROJ\6158\6158-CCS\_Drawings\6158A-SITE PLAN.dwg
P:\16PROJ\6158\6158-CCS\_Drawings\6158A-SITE PLAN.dwg
P:\16PROJ\6158\6158-CCS\_Drawings\6158A-SITE PLAN.dwg
L O T # 1 & 2 C o m b i n e d
P R E -A D D I T I O N (E X I S T I N G ) S I T E
C O N D I T I O N S
P O S T -A D D I T I O N (N E W ) S I T E
C O N D I T I O N SA D D I T I O N A L
A C R E A G E 1 . 3 0 7 1 . 3 0 7 0 . 0 0 0
I M P E R V I O U S 0 . 2 1 4 0 . 5 3 7 0 . 3 2 3
M A N A G E D O P E N S P A C E
1 . 0 9 3 0 . 7 7 0 -0 . 3 2 3
U N D I S T U R B E D O P E N A R E A
0 . 0 0 0 0 . 0 0 0 0 . 0 0 0
A N L = 7 .4 0 3
G O F F R E N T A L S
A P P O R T IO N E D N IT R O G E N L O A D IN G PREDEVELOPED POST DEVELOPEDRETURN EVENT PEAK RUN-OFF PEAK RUN-OFF REDUCTION
(YEARS) (CFS) (CFS) (%)1 1.22 1.15 5.7%10 4.60 3.04 33.9%25 6.71 5.83 13.1%
PRELIMINARY PEAK FLOW REDUCTION
Lot # Acreage Act.
Imperv.
Area (%)
Act.
Imperv.
Area (ac)
NO3
Loading
(lbs)(21.2)
Actual
Undisturbed
Open Space
AREA (%)
Undisturbed
Open Space
(ac)
NO3
Loading
(lbs)(0.6)
Actual
Managed
Open Space
AREA (%)
Managed
Open Space
(ac)
NO3
Loading
(lbs)(1.2)
TOTAL NO3
Loading w /o
BMP's (lbs)
Actual
BMP'S
NO3
Reduction
Factor
TOTAL NO3
Loading
w ith BMP's
TOTAL
NO3
lbs/ac/yr
Excess
NO3
lbs/ac/yr
Excess
NO3 lbs
DISTRIBUTED
NO3 IN LBS.1 &2 1.307 N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.403 N/A 1.000 7.403 5.664 2.064 2.698 2.064
Totals 1.31 N/A N/A N/A N/A N/A N/A N/A 7.403 5.664 2.064 2.698 2.064
1.307 (ac) 0.000
BMP TYPE NOTES: Nitrogen loading computed based upon apportionment methond for Lot # 1 & 2 combined . A 25%B 40%C 35%D 35%E 20%F
20%G
30%H 10%
TN REMOVAL RATEWET DENTENTION PONDSTORMWATER WETLANDS
VEGETATED FILTER STRIP W/
NO3 Reduction from BMP's (lbs)Total Development Acreage
SAND FILTERBIORETENTIONGRASS SWALE
50' RESTORED REPARIANW/LEVEL SPREADERDRY DETENTION
Prepared by RON SUTTON
NEUSE RIVER BASIN SCHEDULEGOFF RENTALS
Herring-Sutton & Associates, P.A.
August 2, 2016
LEVEL SPREADER
P:\16PROJ\6158\6158-CCS\_Drawings\6158A-SITE PLAN.dwg
P:\16PROJ\6158\6158-CCS\_Drawings\6158A-SITE PLAN.dwg
