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Home My WebLink AboutSW5231002_Design Calculations_20231019 CHATHAM VETERINARY SERVICE SILER CITY, NC HYDROLOGIC AND HYDRAULIC ANALYSIS REPORT BREC 7,11p 11, •�ti „kz Prepared By: Prepared For: Project Site: BREC, P.A. Chatham Veterinary Service 1114 Greensboro Avenue 1520 Meadowview Drive 1114 Greensboro Avenue Siler City, NC 27344 Wilkesboro, NC 28697 Siler City, NC 27344 NCBELS Firm #C-3448 (919) 742-4441 (336) 844-4088 justin@brec.biz 3 October 2023 \\'` -51 SEAL •: z CL_ • 035736 .•• %/,NiC.CNVQ.\\‘� Justin Church, PE /1/0/111„0\-\ Principal Engineer BREC, P.A. Chatham Veterinary Service 1 Table of Contents 1.0 General Information 4 2.0 Methodology 4 2.1 Rainfall Data 4 2.2 Time of Concentration Calculations 5 2.3 Runoff Coefficient Calculations 6 2.4 Pipe Design 7 2.4.1 Outlet Design 8 2.5 Hydrology Calculations 9 2.5.1 Modified Curve Number Calculations 9 2.6 Sand Filter Design 10 2.6.1 Chamber and Filter Sizing 11 2.6.2 Underdrain Sizing 11 2.6.3 Emergency Spillway Calculations 12 2.6.4 Anti-floatation Calculations 12 3.0 Results 13 Appendix 14 Pre-construction 10 Year, 24 Hour Post-construction 1 in Design Storm Post-construction 10 Year, 24 Hour Post-construction 100 Year, 24 Hour SHWT Report Soils Report BREC, P.A. Chatham Veterinary Service 2 List of Figures Figure 1 - System Storage of First Flush 13 List of Tables Table 1 - NOAA Rainfall Depths 4 Table 2 - NOAA Rainfall Intensity 4 Table 3 - Post-Construction ToC 5 Table 4 - Curve Numbers 6 Table 5 - Post-Construction Drainage Areas 6 Table 6 - Composite Rational Coefficients 7 Table 7 - Pipe Design Summary 7 Table 8 - Riprap Outlet Stone Sizing 8 Table 9 - Modified SCS Curve Numbers 9 Table 10 - Sand Filter State-Storage 10 Table 11 - Pipe Design Table 14 BREC, P.A. Chatham Veterinary Service 3 1.0 General Information This document contains hydrologic and hydraulic calculations demonstrating compliance with post-construction state and local stormwater regulations for the construction of a new 4,000 f t2 veterinary clinic adjacent to the existing Chatham Veterinary Service facility at the intersection of Trinity Street and Greensboro Avenue in Siler City, NC. Specifically, regulations for this area require water quality treatment of the 1 inch design storm1 and peak attenuation of the 10 year, 24 hour storm2. The subject tract is primarily wooded with a gravel parking area that is used by the existing facility. In-situ soils are mapped as GnC which is classified as hydrologic soil group B. Post-construction stormwater requirements will be satisfied with an above ground sand filter which is approved by NCDEQ as a primary stormwater control measure (SCM). 2.0 Methodology One pre-construction and thirteen post-construction drainage areas covering the subject tract improvements and adjacent off-site areas were identified. See plansheets for delineation. All proposed impervious areas other than a small portion of the Trinity Street driveway are routed to the sand filter for treatment prior to discharge. This area cannot be routed to the SCM due to topographic constraints. A variance is being requested for this area per 15A NCAC 02H .1003(6). Additionally, a portion of the existing facility including the roof surface is routed to the SCM. 2.1 Rainfall Data Rainfall data was taken from NOAA Atlas 14, Volume 2, Version 3 for Siler City, NC. Rainfall depths for each design storm are summarized below. Table 1 - NOAA Rainfall Depths Storm Rainfall Depth (in) Design Storm 1.00 1 Year, 24 Hour 2.98 1 10 Year, 24 Hour 5.20 100 Year, 24 Hour 7.70 Table 2 - NOAA Rainfall Intensity Storm Rainfall Intensity (in/hr) 10 Year, 5 Min 7.48 1 15A NCAC 02H.1001 -Stormwater Management 2 Town of Siler City UDO, Article XVI, Part II, Section 247(c) BREC, P.A. Chatham Veterinary Service 4 2.2 Time of Concentration Calculations Time of concentration values were calculated using the Kerby and Kirpich equations for overland and channel flow time. Tc = Tov + Tch (min) To„ = 0.828(Lo„N)o.467S671 o.z35 (min) (Kerby) Lo„ = Overland flow length (ft) N = Retardance coefficient (dimensionless) So„ = Average surf ace slope (f t/f t) Tch = 0.0078L47 7S50 385 (min) (Kirpich) Lch = Channel f low length (f t) Sch = Average channel slope (f t/f t) All areas less than or equal to 0.5 acres were assigned a minimum time of concentration of 5 minutes. Table 3 - Pre-Construction ToC Name T c—calc T c—assumed (min) (min) PRE-CON:1 6.8 7.0 Table 4 - Post-Construction ToC Name T c—calc T c—assumed (min) (min) POST-CON:1 <5 5.0 POST-CON:2 <5 5.0 POST-CON:3 <5 5.0 POST-CON:4 <5 5.0 POST-CON:5 <5 5.0 POST-CON:6 <5 5.0 POST-CON:7 <5 5.0 POST-CON:8 <5 5.0 POST-CON:9 <5 5.0 POST-CON:10 <5 5.0 POST-CON:11 <5 5.0 POST-CON:12 <5 5.0 POST-CON:13 <5 5.0 BREC, P.A. Chatham Veterinary Service 5 2.3 Runoff Coefficient Calculations Composite SCS curve numbers were calculated as weighted averages using values summarized below. Table 5 -Curve Numbers Description HSG B IMPERVIOUS 98 GRASS 61 WOODED 55 Composite curve numbers for pre-construction and post-construction drainage areas are calculated as: Aimp x CNimp + Agrass X CNgrass + Awooded X CNwooded) CNcomp - "total Table 6 - Pre-Construction Drainage Areas DA HSG Out f all Atotal Aimp A grass Awooded CNcompp,e (acres) (acres) (acres) (acres) PRE-CON:1 B 1 1.83 0.43 0.22 0.99 66.5 TOTAL 1.83 0.43 0.22 0.99 66.5 Table 7 - Post-Construction Drainage Areas DA HSG Outfall Atotal Aimp A grass Awooded CNcomppost (acres) (acres) (acres) (acres) POST-CON:1+ B 1 0.11 0.11 0.00 0.00 98.0 POST-CON:2+ B 1 0.08 0.07 0.01 0.00 93.0 POST-CON:3+ B 1 0.19 0.08 0.12 0.00 75.5 POST-CON:4+ B 1 0.18 0.09 0.06 0.03 78.6 POST-CON:5+ B 1 0.15 1 0.00 0.15 0.00 61.0 POST-CON:6+ B 1 0.02 0.02 0.00 0.00 95.8 POST-CON:7+ B 1 0.19 0.01 0.14 0.04 61.1 POST-CON:8+ B 1 0.03 0.00 0.02 0.00 63.3 POST-CON:9+ B 1 0.05 0.04 0.00 0.00 95.8 POST-CON:10+ I B 1 1 0.091 0.071 0.02 I 0.00 89.3 POST-CON:11 B 1 0.16 0.06 0.11 0.00 73.8 POST-CON:12 B 1 1 0.38 I 0.17 I 0.21 I 0.00 77.4 POST-CON:13+ B 1 0.19 0.05 0.06 0.09 67.0 TOTAL 1 .83 0.77 0.91 0.15 76.0 SUBTOTAL+ (TO SCM) 1 1.28 1 0.54 1 0.59 1 0.15 I 75.9 + Routed through sand filter prior to discharge. BREC, P.A. Chatham Veterinary Service 6 A composite rational runoff coefficient and associated discharge was also calculated for each post-construction drainage area for pipe and swale conveyance sizing. Aimppost X Cimp + Agrasspost x Cimp + Awoodedpost x Cwooded Ccomp Atotalpost Q = CcomplA Table 8 - Composite Rational Coefficients DA Atotal Acomp imp Agrass Awooded C ft3 (acres) (acres) (acres) (acres) Q S POST-CON:1* 0.11 0.11 0.00 0.00 0.95 0.78 POST-CON:2* 0.08 0.07 0.01 0.00 0.85 0.51 POST-CON:3* 0.19 0.08 0.12 0.00 0.49 0.70 POST-CON:4* 0.18 0.09 0.06 0.03 0.57 0.76 POST-CON:5* 0.15 0.00 0.15 0.00 0.20 0.22 POST-CON:6* 0.02 0.02 0.00 0.00 0.90 0.14 POST-CON:7* 0.19 0.01 0.14 0.04 0.22 0.31 POST-CON:8* 0.03 0.00 0.02 0.00 0.25 0.06 POST-CON:9* 0.05 0.04 0.00 0.00 0.90 0.34 POST-CON:10* 0.09 0.07 0.02 0.00 0.77 0.52 POST-CON:11* 0.16 0.06 0.11 0.00 0.46 0.55 POST-CON:12* 0.38 0.17 0.21 0.00 0.53 1.52 POST-CON:13* 0.19 0.05 0.06 0.09 0.36 0.51 * Q10 ** Q25 2.4 Pipe Design Rational discharges from the delineated drainage areas were used to size pipes by solving Manning's equation iteratively for the normal depth. Table 9 - Pipe Design Summary ft3 PIPE DIA (in) Qdesign (Lv) Qmax C s ) PIPE-1 15 0.55 9.7 PIPE-2 15 1 .16 7.4 PIPE-3 15 1.86 7.2 PIPE-4 15 2.38 7.4 PIPE-5 15 5.50 9.3 PIPE-6 10 0.34 6.9 BREC, P.A. Chatham Veterinary Service 7 PIPE DIA (in) (ft3 Qdesign (Lv) Qmax \ s ) PIPE-7 15 1.96 14.1 PIPE-8 15 2.30 7.2 PIPE-9 15 5.86 8.8 PIPE-10 15 0.14 8.0 See Appendix for complete pipe design table. 2.4.1 Outlet Design Outlet design for PIPE-1, PIPE-5, and PIPE-9 was taken from Chapter 10 of HEC- 14. Riprap D50 was calculated as: 4 n D D50 = 0.2D Qdesig ( V702.5) \T W l Where, D50 = riprap size, (ft) Qdesign = Design discharge ((ft3)/s) D = Pipe diameter, (ft) TW = Tailwater depth, (ft) g = gravitational acceleration (32.2 f Us') A minimum D50 of 5 inches was chosen for each pipe which corresponds to NCDOT Class A stone. Given the design D50, the dimensions of the apron were taken from Table 10.1 equations from HEC 143. La = Apron length (ft) = 4D Da = Apron depth (ft) = 3.5D50 Wl = Upper width (ft) = 3D W2 = Lower width (ft) = 3D + (2/3) La Substituting the corresponding pipe diameters and design discharges into the equation above yields: Table 10 - Riprap Outlet Stone Sizing PIPE Dsocaic (in) D5Odesign (in) La (ft) Da (ft) Wl (ft) W2 (ft) PIPE-1 0.2 5 (CLASS A) 5.0 1.5 4.0 7.0 PIPE-9 3.7 5 (CLASS A) 5.0 1.5 4.0 7.0 3 http://www.fhwa.dot.gov/engineering/hydraulics/pubs/06086/hec14ch10.cfm BREC, P.A. Chatham Veterinary Service 8 2.5 Hydrology Calculations The water quality volume (WQV) required to be treated from the first flush was calculated using the Schueler method outlined in the NCDEQ Stormwater Design Manual4. The Schueler method utilizes the following equations: R„ = 0.05 + 0.9IA WQV = 3630RDR„A Where IA is the impervious fraction of the drainage area, R„ is a runoff coefficient, RD is the rainfall depth, A is the drainage area, and WQ„ is the runoff volume. The following parameters are used for the drainage routed to the sand filter. Ia = 0.42 R„ = 0.05 + 0.9(0.42) = 0.43 RD = 1.0 inch A = 1.27 acres WQV = 3,630(1.0)(0.43)(1.28) = 1,998 ft3 WQVadj = 0.75WQ„ = 0.75(1,982) = 1,499 ft3 2.5.1 Modified Curve Number Calculations To route the WQV through the sand filter, it is necessary to calculate a modified SCS curve number to avoid underrepresenting the first flush. The modified curve number is calculated as follows: CNm = 1000/ [10 + 5RD + 10R„ — 10JR, + 1.25R„RD] The modified curve numbers were used to route the first flush using an SCS 6 hour balanced storm distribution. The remaining design storms were routed with standard curve numbers and an SCS type II 24 hour storm distribution. Table 11 - Modified SCS Curve Numbers DA Rv CA mod POST-CON:1 0.95 99.57 POST-CON:2 0.83 98.40 POST-CON:3 0.40 92.03 POST-CON:4 0.50 93.93 4 https://deq.nc.gov/sw-bmp-manual BREC, P.A. Chatham Veterinary Service 9 DA Rv CNmod POST-CON:5 0.05 77.22 POST-CON:6 0.90 99.07 POST-CON:7 0.08 88.06 1 POST-CON:8 0.11 81.45 POST-CON:9 0.90 99.07 POST-CON:10 1 0.74 97.40 POST-CON:11 1 0.36 91.04 POST-CON:12 I 0.45 92.99 POST-CON:13 1 0.26 88.37 TOTAL 0.43 92.59 SUBTOTAL+ (TO SCM) 0.43 92.59 2.6 Sand Filter Design The combined area of the sediment chamber and sand chamber is determined from the relationship of the max water depth observed during the water quality event, Hmax, and the adjusted water quality volume. Hmax = 0.5ft Amin - _ QVadj 10.59 - 2,998 f t2 H max Aprovided = 3,600 >_ Amin Vmin = WQVadj = 1,499 f t3 Vprovided = 1,864 ft3 > Vmin Table 12 -Sand Filter State-Storage Stage Elevation Area Sediment Vol Filter Vol Total Vol (ft) (ft) (ft2) , (ft3) (ft3) (ft3) 634.0 3,600+ 0 1 0 1 0 0.5 634.5 3,856 932 1 932 1 1,864^ 1.0 635.0 4,117 1,929 1 1,929 1 3,857 2.0 636.0 4,657 I 4,122 1 4,122 8,244 637.0 5,221 1 6,592 1 6,592 13,183 + Aprovided n Vprovided BREC, P.A. Chatham Veterinary Service 10 2.6.1 Chamber and Filter Sizing The sand filter sediment chamber and sand chamber are similarly sized to satisfy MDC 2. Given the sand chamber area, the sand media area, Ascend, was selected as 975 ft2. This dimension creates an easily installable geometric shape for the sand media while preventing the sand media from being installed adjacent to the toe of slope grading. Discharge through the sand media is governed by Darcy's Law. Asandk(ha + df) Qsand = df Where, Asand = Sand media surface area (ft2) = 975 ft2 k = Sand media permeability (ft/day) = 4.0 ft/day df = Sand media depth (ft) = 1.5 ft ha = Average height of water above sand media = 0.25 ft 2.6.2 Underdrain Sizing Drawdown time is calculated as: WQVdf 1,998(1.5) t = = = 10.5 hours k(ha + df)Asand 4.0(0.25 + 1.5)975 Discharge rate is calculated as: WQV 1,998 ft3 Qunderdrain = t 10.5 0.05 s After applying a safety factor of 10, ft3 Qsand = 10Qunderdrain = 0.5 S The diameter of a single pipe is calculated as: 3 D = 16 C I nQsandl8 Where, n = Manning's roughness for pipe S = pipe slope BREC, P.A. Chatham Veterinary Service 11 3 0.011(0.5) s D = 16 = 6.3 inches V0.005 Per Table 1 of Section A-5 of the NCDEQ Stormwater Design Manual, use (4) 4 inch pipes 2.6.3 Emergency Spillway Calculations Modeling shows the emergency spillway being activated only during the 100 year, 24 hour storm. The emergency spillway elevation is designed to provide 1 ft of freeboard when activated. With those constraints, the maximum head for flow over the emergency spillway is 0.25 ft. 3 3 ft3 Qspillway = CLHz = 3.33 x 20 x 0.25z = 8.3 — s The outlet channel is armored with an HDPE scour mat installed over sod with the following performance metrics: J tt Vpermissible = 19 S Qspillway ft Vcalculated = = 1.5 — < Vpermissible 'spillway@0.25' 2.6.4 Anti-floatation Calculations The outlet structure is a 3 ft x 3 ft x 4 ft precast concrete box with 6 in side and bottom wall thicknesses. Including concrete and reinforcing steel, the structure has an empty mass of Moutietempty = 4,078 lb. Assuming the total height of the box is exposed to buoyant forces, the volume of water displaced by the box is calculated from the outside dimensions. Vboxwater = 4.0 ft x 4.0 ft x 4.5 ft = 72 ft3 The buoyant force on the box is controlled by the hydraulic forces acting on the displaced volume. Fb = VboxwaterPw = 72 f t3 x 62.4 lb = 4,493 lb BREC, P.A. Chatham Veterinary Service 12 Additional mass was added to the outlet structure by pouring a 6 in concrete slab over the bottom. Moutiettotai = 4,078 lb + (3 ft)(3 f t)(0.5 f t) (150 ft3) = 4,753 lb > Fb 3.0 Results The 1 in design storm is routed through the sand filter and reaches a max storage depth of 0.34 ft which does not exceed the design Hmax = 0.5 ft. The water quality volume is discharged over a period of 12.5 hours. Storage:System(POST-CON-ROUTING-BALANCED_081520232023-10-0214:0154)) 14001 1350 1300- 1250- 1200- 1150- 1100- 1050- 1000- 950- 900- 850- 800- 750 700 2 650- n 600- 550- 500- 450- 400- 350- 300- 250- 200- 150- 100- 50- 0 0 5 10 15 20 25 30 35 40 45 Time(hrs) Figure 1 -System Storage of Design Storm Table 13 - Peak Attenuation Discharge (ft3/s) Storm Pre-Construction Post-Construction OUTFALL OUTFALL 1 1 10 Year, 24 Hour 5.10 2.79 BREC, P.A. Chatham Veterinary Service 13 Appendix Table 14 - Pipe Design Table DIA Q MAX Q DESIGN V DESIGN NAME (IN) INV UP INV DOWN LEN (FT) S (FT/FT) n (CFS) (CFS) (FT/S) PIPE-1 15 634.00 633.25 39.1 0.019 0.012 9.7 0.55 4.3 PIPE-2 15 635.70 635.20 45.2 0.011 0.012 7.4 1.16 4.5 PIPE-3 15 635.10 634.10 94.6 0.011 0.012 7.2 1.86 5.0 PIPE-4 15 634.00 633.35 58.0 0.011 0.012 7.4 2.38 5.3 PIPE-5 15 633.25 633.18 4.1 0.018 0.012 9.3 5.50 7.9 PIPE-6 10 636.00 634.50 25.3 0.059 0.010 6.9 0.34 7.0 PIPE-7 15 635.50 634.50 24.5 0.041 0.012 14.1 1.96 7.9 PIPE-8 15 634.40 633.35 99.6 0.011 0.012 7.2 2.30 5.2 PIPE-9 15 631.50 631.00 31.9 0.016 0.012 8.8 5.86 7.6 PIPE-10 15 633.50 633.15 29.3 0.013 0.012 8.0 0.14 2.6 BREC, P.A. Chatham Veterinary Service 14 Pre-construction 10 Year, 24 Hour BREC, P.A. Dollar General— Store#08606 15 Project Description File Name PRE-CON-ROUTING_08152023.SPF Description Folders\PROJECTS\BREC\PROJECTS\638_DAVIE_CONSTRUCTION\6380 052023_CHATHAM_VET_SERVICES\PRODUCTION_DWGS\6380052023 Project Options Flow Units CFS Elevation Type Elevation Hydrology Method SCS TR-55 Time of Concentration(TOC)Method User-Defined Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On 00:00:00 0:00:00 End Analysis On 00:00:00 0:00:00 Start Reporting On 00:00:00 0:00:00 Antecedent Dry Days 0 days Runoff(Dry Weather)Time Step 0 01:00:00 days hh:mm:ss Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:00:05 days hh:mm:ss Routing Time Step 5 seconds Number of Elements Oty Rain Gages 1 Subbasins 1 Nodes 1 Junctions 0 Outfalls 1 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall ID Source ID Type Units Period Depth Distribution (years) (inches) 1 SILER_CITY Time Series 10YR-24HR Cumulative inches North Carolina Chatham 10.00 5.20 SCS Type II 24-hr This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Summary SN Subbasin Area Peak Rate Weighted Total Total Total Peak Time of ID Factor Curve Rainfall Runoff Runoff Runoff Concentration Number Volume (ac) (in) (in) (ac-in) (cfs) (days hh:mm:ss) 1{PRE-CON).PRE-CON:1 1.83 484.00 66.50 5.20 1.90 3.48 5.10 0 00:07:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft') (cfs) (ft) (ft) (ft)(days hh:mm) (ac-in) (min) 1 OUTFALL-1 Outfall 629.50 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Hydrology Subbasin:{PRE-CON}.PRE-CON :1 Input Data Area(ac) 1.83 Peak Rate Factor 484 Weighted Curve Number 66.5 Rain Gage ID SILER_CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 1.83 - 66.5 Composite Area&Weighted CN 1.83 66.5 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 1.9 Peak Runoff(cfs) 5.1 Weighted Curve Number 66.5 Time of Concentration(days hh:mm:ss) 0 00:07:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{PRE-CON}.PRE-CON:1 Rainfall Intensity Graph 7.5 - I I 7 V 6.5- 6 5.5 5 • 4.5- c 4 m - ce 2.5 2 1.5 1 0.5 . . . . . . . . . . . . . . . . . . . . . . . O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 5.4 5.2 5 4.8 4.6 4.4 4.2 4 3.8- 3.6- 3.4 _ 3.2— y 3- - U ' 2.8 O 2.6- - c • 2.4 22 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Post-construction 1 in Design Storm BREC, P.A. Dollar General— Store#08606 16 Project Description File Name POST-CON-ROUTING-BALANCED_08152023.SPF Description Folders\PROJECTS\BREC\PROJECTS\638_DAVIE_CONSTRU CTION\6380052023_CHATHAM_VET_SERVICES\PRODUCTI Project Options Flow Units CFS Elevation Type Elevation Hydrology Method SCS TR-55 Time of Concentration(TOC)Method User-Defined Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On 00:00:00 0:00:00 End Analysis On 00:00:00 0:00:00 Start Reporting On 00:00:00 0:00:00 Antecedent Dry Days 0 days Runoff(Dry Weather)Time Step 0 01:00:00 days hh:mm:ss Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:00:05 days hh:mm:ss Routing Time Step 5 seconds Number of Elements Qty Rain Gages 1 Subbasins 13 Nodes 4 Junctions 2 Outfalls 1 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 6 Channels 0 Pipes 2 Pumps 0 Orifices 2 Weirs 1 Outlets 1 Pollutants 0 Land Uses 0 Rainfall Details SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall ID Source ID Type Units Period Depth Distribution (years) (inches) 1 SILER-CITY Time Series 1IN-6HR-BALANCED Cumulative inches 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Summary SN Subbasin Area Peak Rate Weighted Total Total Total Peak Time of ID Factor Curve Rainfall Runoff Runoff Runoff Concentration Number Volume (ac) (in) (in) (ac-in) (cfs) (days hh:mm:ss) 1(POST-CON).POST-CON:1 0.11 484.00 99.57 1.00 0.95 0.10 0.23 0 00:05:00 2(POST-CON).POST-CON:10 0.09 484.00 97.40 1.00 0.73 0.07 0.16 0 00:05:00 3(POST-CON).POST-CON:11 0.16 484.00 91.04 1.00 0.36 0.06 0.15 0 00:05:00 4(POST-CON).POST-CON:12 0.38 484.00 92.81 1.00 0.44 0.17 0.43 0 00:05:00 5(POST-CON).POST-CON:13 0.19 484.00 88.37 1.00 0.26 0.05 0.13 0 00:05:00 6(POST-CON).POST-CON:2 0.08 484.00 98.40 1.00 0.82 0.07 0.16 0 00:05:00 7(POST-CON).POST-CON:3 0.19 484.00 92.03 1.00 0.40 0.08 0.20 0 00:05:00 8(POST-CON).POST-CON:4 0.18 484.00 93.93 1.00 0.50 0.09 0.23 0 00:05:00 9(POST-CON).POST-CON:5 0.15 484.00 77.22 1.00 0.05 0.01 0.01 0 00:05:00 10(POST-CON).POST-CON:6 0.02 484.00 99.07 1.00 0.82 0.02 0.04 0 00:05:00 11(POST-CON).POST-CON:7 0.19 484.00 80.06 1.00 0.08 0.02 0.02 0 00:05:00 12(POST-CON).POST-CON:8 0.03 484.00 81.45 1.00 0.07 0.00 0.01 0 00:05:00 13(POST-CON).POST-CON:9 0.05 484.00 99.07 1.00 0.89 0.04 0.10 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft9 (cfs) (ft) (ft) (ft) (days hh:mm) (ac-in) (min) 1 SCM-RISER Junction 631.00 637.00 631.00 0.00 0.00 0.06 631.07 0.00 5.93 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) Junction 630.50 637.00 630.50 0.00 0.00 0.63 631.17 0.00 5.83 0 00:00 0.00 0.00 3 OUTFALL-1 Outfall 629.50 0.63 629.67 4 SAND-FILTER Storage Node 634.00 637.00 634.00 0.00 1.27 634.34 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Link Summary SN Element Element From To(Outlet) Length Inlet Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow Peak Flow Total Time Reported ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth Depth/ Surcharged Condition Node Elevation Elevation Ratio Total Depth Ratio (ft) (ft) (ft) (%) (in) (cfs) (cfs) (ft/sec) (ft) (min) 1 SCM-BARREL Pipe SCM-RISER SITE-JUNCTION(VIRTUAL) 34.00 631.00 630.50 1.4700 15.000 0.0120 0.06 8.49 0.01 5.71 0.07 0.06 0.00 Calculated 2 SITE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUTFALL-1 30.00 631.00 629.50 5.0000 15.000 0.0120 0.63 15.65 0.04 6.32 0.17 0.14 0.00 Calculated 3 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 634.00 631.00 3.000 0.00 4 SCM-RISER-RIM Orifice SAND-FILTER SCM-RISER 634.00 631.00 36.000 0.00 5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 634.00 631.00 0.06 6 EMERGENCY-SPILLWAY Weir SAND-FILTER SITE-JUNCTION(VIRTUAL) 634.00 630.50 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Hydrology Subbasin:{POST-CON}.POST-CON:1 Input Data Area(ac) 0.11 Peak Rate Factor 484 Weighted Curve Number 99.57 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.11 - 99.57 Composite Area&Weighted CN 0.11 99.57 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.95 Peak Runoff(cfs) 0.23 Weighted Curve Number 99.57 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:1 Rainfall Intensity Graph 2.3 2.2 2.1 2 • 1.9 • - 1.8- 1.7 • — 1.6- 1.5 • — 1.4 • — L 1.3 • c 1.2 m 1.1 C '@ 1 0.9 0.8 0.7 0.6 0.5 0.4 0.2 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.24 0.23 0.22- 0.21- 0.2 0.19- 0.18- 0.17 0.16- 0.15 0.14 N y 0.13 0.12 O S 0.11 0.1 0.09- 0.08 11 - 0.07 0.06 0.05 0.04 0.03- 0.02- 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Input Data Area(ac) 0.09 Peak Rate Factor 484 Weighted Curve Number 97.4 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.09 - 97.4 Composite Area&Weighted CN 0.09 97.4 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.73 Peak Runoff(cfs) 0.16 Weighted Curve Number 97.4 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 0! 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.18 0.17 0.16 - 0.15 0.14 0.13 0.12 0.11 0.1 G 0.09 K 0.08 0.07 0.06 0.05 0.04 0. 0.0032 0.01 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Input Data Area(ac) 0.16 Peak Rate Factor 484 Weighted Curve Number 91.04 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.16 - 91.04 Composite Area&Weighted CN 0.16 91.04 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.36 Peak Runoff(cfs) 0.15 Weighted Curve Number 91.04 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 I1.4 1.3 1.2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.155 0.15 0.145 0.14 0.135 0.13 0.125 0.12 0.115 0.11 0.105 0.1 0.095 0.09 v0.085 0.08 00.075 z 0.07 rX0.065 0.06 0.055 - 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Input Data Area(ac) 0.38 Peak Rate Factor 484 Weighted Curve Number 92.81 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.38 - 92.81 Composite Area&Weighted CN 0.38 92.81 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.44 Peak Runoff(cfs) 0.43 Weighted Curve Number 92.81 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.46 0.44 0.42 . 0.4 0.38 0.36 0.34 0.32 0.3 0.28 y 0.26 0.24 c 0.22 K 0.2 0.18 0.16 II 0.14 0.12 0.1 0.06 0.06 0.04 0.02 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 88.37 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 88.37 Composite Area&Weighted CN 0.19 88.37 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.26 Peak Runoff(cfs) 0.13 Weighted Curve Number 88.37 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.135 0.13 0.125 0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 _ `�0.075 0.07 S0.065 K 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Input Data Area(ac) 0.08 Peak Rate Factor 484 Weighted Curve Number 98.4 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.08 - 98.4 Composite Area&Weighted CN 0.08 98.4 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.82 Peak Runoff(cfs) 0.16 Weighted Curve Number 98.4 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.18 0.17 0.16 - 0.15 0.14 0.13 0.12 0.11 0.1 G 0.09 K 0.08 0.07 0.06 0.05 0.04 0. 0.0032 0.01 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 92.03 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 92.03 Composite Area&Weighted CN 0.19 92.03 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.4 Peak Runoff(cfs) 0.2 Weighted Curve Number 92.03 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2 1.9 1.8 1.7 1.6 1.5 I1.4 1.3 1.2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 jr) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13- -( 0.12- 0.11- G 0.1- c K 0.09- 0.08- 0.07- 0.06- 0.05 0.04 0.03 0.02 0.01 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Input Data Area(ac) 0.18 Peak Rate Factor 484 Weighted Curve Number 93.93 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.18 - 93.93 Composite Area&Weighted CN 0.18 93.93 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.5 Peak Runoff(cfs) 0.23 Weighted Curve Number 93.93 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 U `�'0.13 c 0.12 0.11 0.1 0.09 -- 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Input Data Area(ac) 0.15 Peak Rate Factor 484 Weighted Curve Number 77.22 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.15 - 77.22 Composite Area&Weighted CN 0.15 77.22 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.05 Peak Runoff(cfs) 0.01 Weighted Curve Number 77.22 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 I1.4 1.3 1.2 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.008 0.008- — 0.007 0.007 0.006 0.006 0.005— U - 0.004- C 7 Et0.004 0.004 0.003 0.003 0.002 0.002 0.001 — . 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Input Data Area(ac) 0.02 Peak Rate Factor 484 Weighted Curve Number 99.07 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.02 - 99.07 Composite Area&Weighted CN 0.02 99.07 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.82 Peak Runoff(cfs) 0.04 Weighted Curve Number 99.07 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Rainfall Intensity Graph 2.4 2.3 2.2 2.1- _ ---------- 2 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.042 0.04 0.038- 0.036- 0.034- 0.032- 0.03- 0.028- 0.026- )0.024 U - "0.022 O - S 0.02 rX0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004- J.1 ILL 0.002 - 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 80.06 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 80.06 Composite Area&Weighted CN 0.19 80.06 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.08 Peak Runoff(cfs) 0.02 Weighted Curve Number 80.06 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2.) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.023 0.022 0.021- 0.02 0.019- 0.018- 0.017- 0.016- 0.015 0.014- 00.013 0.012- O - S0.011- K 0.01 0.009- 0.008 0.007 0.006- 0.00s 0.004- 0.003 0.002- 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Input Data Area(ac) 0.03 Peak Rate Factor 484 Weighted Curve Number 81.45 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.03 - 81.45 Composite Area&Weighted CN 0.03 81.45 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.07 Peak Runoff(cfs) 0.01 Weighted Curve Number 81.45 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.005 0.005 0.005 0.005 0.004 0.004 0.004 0.004 0.004 0.003- -0.003- c20.003 z K0.003 0.003 0.002 0.002- 0.002- 0.002- 0.002- 0.001- 0.001- 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Input Data Area(ac) 0.05 Peak Rate Factor 484 Weighted Curve Number 99.07 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.05 - 99.07 Composite Area&Weighted CN 0.05 99.07 Subbasin Runoff Results Total Rainfall(in) 1 Total Runoff(in) 0.89 Peak Runoff(cfs) 0.1 Weighted Curve Number 99.07 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Rainfall Intensity Graph 2.4. 2.3 2.2 2.1- _ ---------- 2- 1.9 1.8 1.7 1.6 1.5 1.4 L c 1.3 0 1.2 2 c 1.1 Et 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 .) 0.1 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.11 0.105 0.1- 0.095 0.09 0.085- 0.08- 0.075- 0.07- 0.065 N ✓ 0.06 00.055 - S 0.05 0.045- -I 0.04- 0.035 0.03- 0.025- 0.02 0.015- 0.01 0.005 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 SCM-RISER 631.00 637.00 6.00 631.00 0.00 0.00 -637.00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 630.50 637.00 6.50 630.50 0.00 0.00 -637.00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:mm) (days hh:mm) (ac-in) (min) 1 SCM-RISER 0.06 0.00 631.07 0.07 0.00 5.93 631.02 0.02 0 04:33 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 0.63 0.58 631.17 0.67 0.00 5.83 631.01 0.51 0 03:06 0 00:00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No.of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 SCM-BARREL 34.00 631.00 0.00 630.50 0.00 0.50 1.4700 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 2 SITE-LINK(VIRTUAL) 30.00 631.00 0.50 629.50 0.00 1.50 5.0000 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min) 1 SCM-BARREL 0.06 0 12:39 8.49 0.01 5.71 0.10 0.07 0.06 0.00 Calculated 2 SITE-LINK(VIRTUAL) 0.63 0 03:06 15.65 0.04 6.32 0.08 0.17 0.14 0.00 Calculated This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Nodes Storage Node:SAND-FILTER Input Data Invert Elevation(ft) 634.00 Max(Rim)Elevation(ft) 637.00 Max(Rim)Offset(ft) 3.00 Initial Water Elevation(ft) 634.00 Initial Water Depth(ft) 0.00 Ponded Area(ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve:SAND-FILTER Stage Storage Storage Area Volume (ft) (ft') (ft3) 0 3600 0 1 4117 3858.5 2 4657 8245.5 3 5221 13184.5 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Area Volume Curves Storage Volume(ft3) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 3 .. —3 2.9= .................................................................................................................................................... .............. .............. ............. ............. .............. __.... =2.9 ................................:........................................................................... ......................................>....................................._.............................. =2.8 2.7 ..............e.................................................................................i............... ........... ............ ........... • ........... ........... ......... =2.7 2.6 _..._.........................................................._........................................_.......................................... .............. .............. ............. ......... ......._.__ =2.6 2.5 ........................................_...........................................5 .........................................._................... _ .............. ............. _ .......... .............. • ............_ =2.5 2.4 ......................................................................................................................................................... .............. ..............• ............. .. ....... .............. .............. —2.4 2.3 ..........................................._.....................}...................._...................._......................._.............................................................. .......... ............. .............. _ ............_ =2.3 2.2 __.................o.................................................................................................................o................. .............. .............. .... ..... • ............. .............. ............_ =2.2 2.1 __................................................................................................................................b................. .............. .......... .............. ............. .............. ............_ —2.1 2 ._..........................................................._i......................i.......................i............................................•................ ..... .... ............. ............. .............. ......._.__ =2 1.9 ..........................................._...................._.........................................._........................................ ............ .............. ............. ............. .............. i. ............_ =1.9 1.8 1,,........................................._........................................................................................}...................._...... ...... ........................................... _ ............. .............. _ ............_ _.=1.8 1.7 .,_..................................................................................................................................._................._ ..... ................................. ............. ............. .............. _ ............_ -1.7 E. 1.6 __.................................................................................:.......................i.................. ...__.... .............. .............. ............. ............. .............. .............. =1.6 w W1.5 ,___..................................._........................................................................................'.............. .............. _ .............. ............. _ ............. .............. _ ............_ _._1.5 41 a - a y1.4 .......................o............................................>......................i.......................i............ ... ............. .............. .............. ............. ............. .............. ......._.__ 1.4 y 1.3 ,............_....._..._..............._......................__....._....._.........................._.. ..... ....._.._.........._....._....._....._....._. _ ._........... ............. _ ....._...... .............. _ .._..._..._ —1.3 1.2 JJl....................5.................................................................5................ ...5 .........................................i.................. _ .............. ............. _ ............. .............. _ ............_ _.=1.2 1.1 ........................................:...................._....................._..._....... ......;....................................... .............. .............. ............. ............. .............. ............_ =1.1 0.9 ___...............e..................................................... .._............................................... ............. .............. .............. ............. ............. .............. ............_ =0.9 0.8 --._ ..i. _.. ..._........i.......................i....................................... .............. .............. ............. ............. i................ ......._.__ =0.8 0.7 ....................i...................................... ... ....._..................................._i......................i.................. ...._........ .............. ............. ....._...... .............. ......._..._ =0.7 0.6—......................_....................._...... ....................................................._................... ............. .............. .............. ............. ............. .............. ............_ =0.6 0.5—.,_.................__............................................................................................................_...................._....................__........................................ ............. .............. ............_ j =0.5 0.4 --_............................. ...........................e......................i.......................i.................. ............. .............. .............. ............. ............. .............. ............_ =0.4 0.3 --._............_... _.........._......................._.....................................................................r................. .............. .............. ............. ............. .............. ............_ =0.3 0.2 _.. ..................:...................i..................i....................i. ......... ............ ........... ........... ........... ............ ........ =0.2 0.1=.1. __ _............._..............._......................_....._....._.........................._�...._....._..... ............. ...._....._. ._........... ............. ....._...... • .............. .._..._..._ =0.1 3,600 3,700 3,800 3,900 4,000 4,100 4,200 4,300 4,400 4,500 4,600 4,700 4,800 4,900 5,000 5,100 5,200 Storage Area(ft') — Storage Area — Storage Volume II This document was created by an application that isn't licensed to use novaPDF. 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Storage Node:SAND-FILTER(continued) Outflow Weirs SN Element Weir Flap Crest Crest Length Weir Total Discharge ID Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCY-SPILLWAY Trapezoidal No 635.75 1.75 10.00 1.25 3.33 Outflow Orifices SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice ID Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) 1 ORIFICE-1 Side CIRCULAR No 3.00 634.50 0.61 2 SCM-RISER-RIM Bottom Rectangular No 36.00 36.00 635.25 0.63 Output Summary Results Peak Inflow(cfs) 1.27 Peak Lateral Inflow(cfs) 1.27 Peak Outflow(cfs) 0.06 Peak Exfiltration Flow Rate(cfm) 0 Max HGL Elevation Attained(ft) 634.34 Max HGL Depth Attained(ft) 0.34 Average HGL Elevation Attained(ft) 634.04 Average HGL Depth Attained(ft) 0.04 Time of Max HGL Occurrence(days hh:mm) 0 04:33 Total Exfiltration Volume(1000-ft3) 0 Total Flooded Volume(ac-in) 0 Total Time Flooded(min) 0 Total Retention Time(sec) 0 This document was created by an application that isn't licensed to use novaPDF. 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Dollar General— Store#08606 17 Project Description File Name POST-CON-ROUTING_08152023.SPF Description Folders\PROJECTS\BREC\PROJECTS\638_DAVIE_CONSTRUCTION\6380 052023_CHATHAM_VET_SERVICES\PRODUCiION_DWGS\6380052023 Project Options Flow Units CFS Elevation Type Elevation Hydrology Method SCS TR-55 Time of Concentration(TOC)Method User-Defined Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On 00:00:00 0:00:00 End Analysis On 00:00:00 0:00:00 Start Reporting On 00:00:00 0:00:00 Antecedent Dry Days 0 days Runoff(Dry Weather)Time Step 0 01:00:00 days hh:mm:ss Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:00:05 days hh:mm:ss Routing Time Step 5 seconds Number of Elements 4ty Rain Gages 1 Subbasins 13 Nodes 4 Junctions 2 Outfalls 1 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 6 Channels 0 Pipes 2 Pumps 0 Orifices 2 Weirs 1 Outlets 1 Pollutants 0 Land Uses 0 Rainfall Details SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall ID Source ID Type Units Period Depth Distribution (years) (inches) 1 SILER-CITY Time Series 10YR-24HR Cumulative inches North Carolina Chatham 10.00 5.20 SCS Type II 24-hr This document was created by an application that isn't licensed to use novaPDF. 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Subbasin Summary SN Subbasin Area Peak Rate Weighted Total Total Total Peak Time of ID Factor Curve Rainfall Runoff Runoff Runoff Concentration Number Volume (ac) (in) (in) (ac-in) (cfs) (days hh:mm:ss) 1(POST-CON).POST-CON:1 0.11 484.00 98.00 5.20 4.96 0.55 0.74 0 00:05:00 2(POST-CON).POST-CON:10 0.09 484.00 89.30 5.20 3.99 0.36 0.55 0 00:05:00 3(POST-CON).POST-CON:11 0.16 484.00 73.80 5.20 2.51 0.40 0.64 0 00:05:00 4(POST-CON).POST-CON:12 0.38 484.00 77.40 5.20 2.83 1.07 1.70 0 00:05:00 5(POST-CON).POST-CON:13 0.19 484.00 67.00 5.20 1.94 0.37 0.58 0 00:05:00 6(POST-CON).POST-CON:2 0.08 484.00 93.00 5.20 4.39 0.35 0.54 0 00:05:00 7(POST-CON).POST-CON:3 0.19 484.00 75.50 5.20 2.66 0.50 0.81 0 00:05:00 8(POST-CON).POST-CON:4 0.18 484.00 78.60 5.20 2.94 0.53 0.84 0 00:05:00 9(POST-CON).POST-CON:5 0.15 484.00 61.00 5.20 1.49 0.22 0.33 0 00:05:00 10(POST-CON).POST-CON:6 0.02 484.00 95.80 5.20 4.61 0.09 0.13 0 00:05:00 11(POST-CON).POST-CON:7 0.19 484.00 61.10 5.20 1.50 0.28 0.43 0 00:05:00 12(POST-CON).POST-CON:8 0.03 484.00 63.30 5.20 1.65 0.05 0.08 0 00:05:00 13(POST-CON).POST-CON:9 0.05 484.00 95.80 5.20 4.70 0.23 0.34 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft9 (cfs) (ft) (ft) (ft) (days hh:mm) (ac-in) (min) 1 SCM-RISER Junction 631.00 637.00 631.00 0.00 0.00 1.81 631.39 0.00 5.61 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) Junction 630.50 637.00 630.50 0.00 0.00 2.79 631.36 0.00 5.64 0 00:00 0.00 0.00 3 OUTFALL-1 Outfall 629.50 2.79 629.86 4 SAND-FILTER Storage Node 634.00 637.00 634.00 0.00 5.35 635.36 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Link Summary SN Element Element From To(Outlet) Length Inlet Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow Peak Flow Total Time Reported ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth Depth/ Surcharged Condition Node Elevation Elevation Ratio Total Depth Ratio (ft) (ft) (ft) (%) (in) (cfs) (cfs) (ft/sec) (ft) (min) 1 SCM-BARREL Pipe SCM-RISER SITE-JUNCTION(VIRTUAL) 34.00 631.00 630.50 1.4700 15.000 0.0120 1.81 8.49 0.21 5.71 0.39 0.31 0.00 Calculated 2 SITE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUTFALL-1 30.00 631.00 629.50 5.0000 15.000 0.0120 2.79 15.65 0.18 9.62 0.36 0.29 0.00 Calculated 3 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 634.00 631.00 3.000 0.21 4 SCM-RISER-RIM Orifice SAND-FILTER SCM-RISER 634.00 631.00 36.000 1.52 5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 634.00 631.00 0.09 6 EMERGENCY-SPILLWAY Weir SAND-FILTER SITE-JUNCTION(VIRTUAL) 634.00 630.50 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Hydrology Subbasin:{POST-CON}.POST-CON:1 Input Data Area(ac) 0.11 Peak Rate Factor 484 Weighted Curve Number 98 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.11 - 98 Composite Area&Weighted CN 0.11 98 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 4.96 Peak Runoff(cfs) 0.74 Weighted Curve Number 98 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:1 Rainfall Intensity Graph 7.5 — T 7 6.5- 6 5.5 5 4.5 L c 4- - - 3.5 - ce 3 2.5 2 1.5 1 0.5- L 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.8 0.75- 0.7- 0.65- 0.6- 0.55- 0.5- - 00.45- U 0.4 O C - K 0.35 0.3 0.25 0.2 0.15 0.1 0.05 • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Input Data Area(ac) 0.09 Peak Rate Factor 484 Weighted Curve Number 89.3 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.09 - 89.3 Composite Area&Weighted CN 0.09 89.3 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 3.99 Peak Runoff(cfs) 0.55 Weighted Curve Number 89.3 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- L 4.5 c - 4 3.5 C 3 2.5 2 1.5 • 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.56 0.54 0.52 0.5 - 0.48 0.46 0.44 - 0.42 0.4 0.38 0.36 _U 0.34 - `� 0.32 - O 0.28 - a • 0.26 - EY 0.24 0.22 - 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Input Data Area(ac) 0.16 Peak Rate Factor 484 Weighted Curve Number 73.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.16 - 73.8 Composite Area&Weighted CN 0.16 73.8 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 2.51 Peak Runoff(cfs) 0.64 Weighted Curve Number 73.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- -c 4.5 c 4 a 3.5 c 3 2.5 2 1.5 • 0.5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.7 0.65- 0.6 I i 0.55 - 0.5 0.45 y 0.4- U 0.35- c - z K 0.3 0.25 0.2 0.15 • 0.1 0.05 - . . . . . . . . . . . . . 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Input Data Area(ac) 0.38 Peak Rate Factor 484 Weighted Curve Number 77.4 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.38 - 77.4 Composite Area&Weighted CN 0.38 77.4 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 2.83 Peak Runoff(cfs) 1.7 Weighted Curve Number 77.4 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Rainfall Intensity Graph 8 7.5 7 6.5 - 6 5.5 5- L 4.5 c 4 a 3.5 c 3 2.5 2 1.5 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.8 1.7_ 1.6- 1.5 • 1.4 • 1.3 • 1.2 • 1.1- C • 0.9- O C • 0.8- 0.7 0.6 0.5 0.4 0.3- 0.2- O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 67 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.19 - 67 Composite Area&Weighted CN 0.19 67 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 1.94 Peak Runoff(cfs) 0.58 Weighted Curve Number 67 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- L 4.5 c 4 a 3.5 3 2.5 2 1.5 • 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.62 0.6 0.58 0.56 0.54 0.52 0.5 - 0.48 0.46 - 0.44 0.42 0.4 0.38 0.36 O 0.34 0.32 O 0.3 S 0.28 • 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 - 0.1 0.08 0.06 0.04 0.02 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Input Data Area(ac) 0.08 Peak Rate Factor 484 Weighted Curve Number 93 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.08 - 93 Composite Area&Weighted CN 0.08 93 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 4.39 Peak Runoff(cfs) 0.54 Weighted Curve Number 93 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Rainfall Intensity Graph 8 7.5 L 7 • 6.5 - . 6 5.5 5- L 4.5- - - . c - 4 a C 3 2.5 2 1.5 0.5 • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.56 0.54 - 0.52 - 0.5 0.48 0.46 - 0.44 - 0.42 - 0.4 0.38 0.36 0.34 w40.32 0.03 0 0.3 lll 0.28 S 0.26 Et 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 75.5 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 75.5 Composite Area&Weighted CN 0.19 75.5 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 2.66 Peak Runoff(cfs) 0.81 Weighted Curve Number 75.5 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- -c• 4.5 c 4 a 3.5 c 3 2.5 2 1.5 • 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.9 0.85- 0.8 0.75 0.7 0.65 0.6- 0.55- ) 0.5- G 0.45- c • 0.4 0.35 0.3 0.25 0.2_ 0.15- 0.1- 0.05- O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Input Data Area(ac) 0.18 Peak Rate Factor 484 Weighted Curve Number 78.6 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.18 - 78.6 Composite Area&Weighted CN 0.18 78.6 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 2.94 Peak Runoff(cfs) 0.84 Weighted Curve Number 78.6 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- -c• 4.5 c 4 a 3.5 c 3 2.5 2 1.5 • 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.9 0.85- 0.8 0.75 0.7 0.65 0.6- 0.55- G 0.45- c • 0.4 0.35 0.3 0.25 0.2- 0.15- 0.1- 0.05- O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Input Data Area(ac) 0.15 Peak Rate Factor 484 Weighted Curve Number 61 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.15 - 61 Composite Area&Weighted CN 0.15 61 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 1.49 Peak Runoff(cfs) 0.33 Weighted Curve Number 61 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- -c• 4.5 c 4 a 3.5 c 3 2.5 2 1.5 • 0.5 • O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.36 0.34- 0.32 0.3 0.28 0.26- 0.24- 0.22- ) 0.2- U _ • 0.18 0 c • 0.16 0.14 0.12_ 0.1- 0.08- 0.06 0.04 0.02 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Input Data Area(ac) 0.02 Peak Rate Factor 484 Weighted Curve Number 95.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.02 - 95.8 Composite Area&Weighted CN 0.02 95.8 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 4.61 Peak Runoff(cfs) 0.13 Weighted Curve Number 95.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Rainfall Intensity Graph 8 7.5 L 7 6.5 - . 6 5.5 5- L 4.5- - c - 4 a 3.5 3 2.5 2 1.5 0.5 • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.135 0.13 0.125 0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 v0.075 0.07 S0.065 K 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 61.1 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 61.1 Composite Area&Weighted CN 0.19 61.1 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 1.5 Peak Runoff(cfs) 0.43 Weighted Curve Number 61.1 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Rainfall Intensity Graph 8 7.5 7 6.5 - 6 5.5 5- L 4.5 c 4 3.5 C E 3 2.5 2 1.5 0.5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.46 0.44 - 0.42 0.4 0.38 0.36- 0.34 0.32' 0.3 0.28 y 0.26 0.24- c 0.22 K 0.2' 0.18- 0.16 0.14' 0.12- 0.1 0.08- 0.04 0.02 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Input Data Area(ac) 0.03 Peak Rate Factor 484 Weighted Curve Number 63.3 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.03 - 63.3 Composite Area&Weighted CN 0.03 63.3 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 1.65 Peak Runoff(cfs) 0.08 Weighted Curve Number 63.3 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Rainfall Intensity Graph 8 7.5 • 7 • 6.5 - . 6 5.5 5- -c• 4.5 c 4 a C c 3 2.5 2 1.5 • 0.5 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.09 0.085 0.08 - 0.075 0.07- 0.065 0.06 0.055- ▪ 0.05 _ 00.045 ' - c - 0.04- 0.035- 0.03 0.025 0.02 0.015 0.01 0.005- O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Input Data Area(ac) 0.05 Peak Rate Factor 484 Weighted Curve Number 95.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.05 - 95.8 Composite Area&Weighted CN 0.05 95.8 Subbasin Runoff Results Total Rainfall(in) 5.2 Total Runoff(in) 4.7 Peak Runoff(cfs) 0.34 Weighted Curve Number 95.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Rainfall Intensity Graph 8 7.5 7 6.5 - . 6 5.5 5- L 4.5 c 4 a 3.5 c 3 2.5 2 1.5 • 0.5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.38 0.36 0.34- 0.32- 0.3 0.28- I I I I 0.26 0.24 I 0.22- N 0.2 I I c 0.18 — z K 0.16- 0.14 0.12 0.1- 0.08 • 0.06 0.04 • 0.02 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 SCM-RISER 631.00 637.00 6.00 631.00 0.00 0.00 -637.00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 630.50 637.00 6.50 630.50 0.00 0.00 -637.00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:mm) (days hh:mm) (ac-in) (min) 1 SCM-RISER 1.81 0.00 631.39 0.39 0.00 5.61 631.06 0.06 0 12:04 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 2.79 2.33 631.36 0.86 0.00 5.64 631.05 0.55 0 12:03 0 00:00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No.of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 SCM-BARREL 34.00 631.00 0.00 630.50 0.00 0.50 1.4700 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 2 SITE-LINK(VIRTUAL) 30.00 631.00 0.50 629.50 0.00 1.50 5.0000 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min) 1 SCM-BARREL 1.81 0 12:05 8.49 0.21 5.71 0.10 0.39 0.31 0.00 Calculated 2 SITE-LINK(VIRTUAL) 2.79 0 12:03 15.65 0.18 9.62 0.05 0.36 0.29 0.00 Calculated This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Nodes Storage Node:SAND-FILTER Input Data Invert Elevation(ft) 634.00 Max(Rim)Elevation(ft) 637.00 Max(Rim)Offset(ft) 3.00 Initial Water Elevation(ft) 634.00 Initial Water Depth(ft) 0.00 Ponded Area(ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve:SAND-FILTER Stage Storage Storage Area Volume (ft) (ft') (ft3) 0 3600 0 1 4117 3858.5 2 4657 8245.5 3 5221 13184.5 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Area Volume Curves Storage Volume(ft3) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 3 .. —3 2.9= .................................................................................................................................................... .............. .............. ............. ............. .............. __.... =2.9 ................................:........................................................................... ......................................>....................................._.............................. =2.8 2.7 ..............e.................................................................................i............... ........... ............ ........... • ........... ........... ......... =2.7 2.6 _..._.........................................................._........................................_.......................................... .............. .............. ............. ......... ......._.__ =2.6 2.5 ........................................_...........................................5 .........................................._................... _ .............. ............. _ .......... .............. • ............_ =2.5 2.4 ......................................................................................................................................................... .............. ..............• ............. .. ....... .............. .............. —2.4 2.3 ..........................................._.....................}...................._...................._......................._.............................................................. .......... ............. .............. _ ............_ =2.3 2.2 __.................o.................................................................................................................o................. .............. .............. .... ..... • ............. .............. ............_ =2.2 2.1 __................................................................................................................................b................. .............. .......... .............. ............. .............. ............_ —2.1 2 ._..........................................................._i......................i.......................i............................................•................ ..... .... ............. ............. .............. ......._.__ =2 1.9 ..........................................._...................._.........................................._........................................ ............ .............. ............. ............. .............. i. ............_ =1.9 1.8 1,,........................................._........................................................................................}...................._...... ...... ........................................... _ ............. .............. _ ............_ _.=1.8 1.7 .,_..................................................................................................................................._................._ ..... ................................. ............. ............. .............. _ ............_ -1.7 E. 1.6 __.................................................................................:.......................i.................. ...__.... .............. .............. ............. ............. .............. .............. =1.6 w W1.5 ,___..................................._........................................................................................'.............. .............. _ .............. ............. _ ............. .............. _ ............_ _._1.5 41 a - a y1.4 .......................o............................................>......................i.......................i............ ... ............. .............. .............. ............. ............. .............. ......._.__ 1.4 y 1.3 ,............_....._..._..............._......................__....._....._.........................._.. ..... ....._.._.........._....._....._....._....._. _ ._........... ............. _ ....._...... .............. _ .._..._..._ —1.3 1.2 JJl....................5.................................................................5................ ...5 .........................................i.................. _ .............. ............. _ ............. .............. _ ............_ _.=1.2 1.1 ........................................:...................._....................._..._....... ......;....................................... .............. .............. ............. ............. .............. ............_ =1.1 0.9 ___...............e..................................................... .._............................................... ............. .............. .............. ............. ............. .............. ............_ =0.9 0.8 --._ ..i. _.. ..._........i.......................i....................................... .............. .............. ............. ............. i................ ......._.__ =0.8 0.7 ....................i...................................... ... ....._..................................._i......................i.................. ...._........ .............. ............. ....._...... .............. ......._..._ =0.7 0.6—......................_....................._...... ....................................................._................... ............. .............. .............. ............. ............. .............. ............_ =0.6 0.5—.,_.................__............................................................................................................_...................._....................__........................................ ............. .............. ............_ j =0.5 0.4 --_............................. ...........................e......................i.......................i.................. ............. .............. .............. ............. ............. .............. ............_ =0.4 0.3 --._............_... _.........._......................._.....................................................................r................. .............. .............. ............. ............. .............. ............_ =0.3 0.2 _.. ..................:...................i..................i....................i. ......... ............ ........... ........... ........... ............ ........ =0.2 0.1=.1. __ _............._..............._......................_....._....._.........................._�...._....._..... ............. ...._....._. ._........... ............. ....._...... • .............. .._..._..._ =0.1 3,600 3,700 3,800 3,900 4,000 4,100 4,200 4,300 4,400 4,500 4,600 4,700 4,800 4,900 5,000 5,100 5,200 Storage Area(ft') — Storage Area — Storage Volume II This document was created by an application that isn't licensed to use novaPDF. 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Storage Node:SAND-FILTER(continued) Outflow Weirs SN Element Weir Flap Crest Crest Length Weir Total Discharge ID Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCY-SPILLWAY Trapezoidal No 635.75 1.75 10.00 1.25 3.33 Outflow Orifices SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice ID Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) 1 ORIFICE-1 Side CIRCULAR No 3.00 634.50 0.61 2 SCM-RISER-RIM Bottom Rectangular No 36.00 36.00 635.25 0.63 Output Summary Results Peak Inflow(cfs) 5.35 Peak Lateral Inflow(cfs) 5.35 Peak Outflow(cfs) 1.81 Peak Exfiltration Flow Rate(cfm) 0 Max HGL Elevation Attained(ft) 635.36 Max HGL Depth Attained(ft) 1.36 Average HGL Elevation Attained(ft) 634.3 Average HGL Depth Attained(ft) 0.3 Time of Max HGL Occurrence(days hh:mm) 0 12:04 Total Exfiltration Volume(1000-ft3) 0 Total Flooded Volume(ac-in) 0 Total Time Flooded(min) 0 Total Retention Time(sec) 0 This document was created by an application that isn't licensed to use novaPDF. 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Dollar General— Store#08606 18 Project Description File Name POST-CON-ROUTING_08152023.SPF Description Folders\PROJECTS\BREC\PROJECTS\638_DAVIE_CONSTRUCTION\6380 052023_CHATHAM_VET_SERVICES\PRODUCTION_DWGS\6380052023 Project Options Flow Units CFS Elevation Type Elevation Hydrology Method SCS TR-55 Time of Concentration(TOC)Method User-Defined Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On 00:00:00 0:00:00 End Analysis On 00:00:00 0:00:00 Start Reporting On 00:00:00 0:00:00 Antecedent Dry Days 0 days Runoff(Dry Weather)Time Step 0 01:00:00 days hh:mm:ss Runoff(Wet Weather)Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:00:05 days hh:mm:ss Routing Time Step 5 seconds Number of Elements city Rain Gages 1 Subbasins 13 Nodes 4 Junctions 2 Outfalls 1 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 6 Channels 0 Pipes 2 Pumps 0 Orifices 2 Weirs 1 Outlets 1 Pollutants 0 Land Uses 0 Rainfall Details SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall ID Source ID Type Units Period Depth Distribution (years) (inches) 1 SILER-CITY Time Series 100YR-24HR Cumulative inches North Carolina Chatham 100.00 7.70 SCS Type II 24-hr This document was created by an application that isn't licensed to use novaPDF. 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Subbasin Summary SN Subbasin Area Peak Rate Weighted Total Total Total Peak Time of ID Factor Curve Rainfall Runoff Runoff Runoff Concentration Number Volume (ac) (in) (in) (ac-in) (cfs) (days hh:mm:ss) 1(POST-CON).POST-CON:1 0.11 484.00 98.00 7.70 7.46 0.82 1.10 0 00:05:00 2(POST-CON).POST-CON:10 0.09 484.00 89.30 7.70 6.42 0.58 0.85 0 00:05:00 3(POST-CON).POST-CON:11 0.16 484.00 73.80 7.70 4.63 0.74 1.17 0 00:05:00 4(POST-CON).POST-CON:12 0.38 484.00 77.40 7.70 5.05 1.92 2.99 0 00:05:00 5(POST-CON).POST-CON:13 0.19 484.00 67.00 7.70 3.87 0.74 1.18 0 00:05:00 6(POST-CON).POST-CON:2 0.08 484.00 93.00 7.70 6.86 0.55 0.82 0 00:05:00 7(POST-CON).POST-CON:3 0.19 484.00 75.50 7.70 4.83 0.92 1.46 0 00:05:00 8(POST-CON).POST-CON:4 0.18 484.00 78.60 7.70 5.18 0.93 1.45 0 00:05:00 9(POST-CON).POST-CON:5 0.15 484.00 61.00 7.70 3.22 0.48 0.75 0 00:05:00 10(POST-CON).POST-CON:6 0.02 484.00 95.80 7.70 7.14 0.14 0.19 0 00:05:00 11(POST-CON).POST-CON:7 0.19 484.00 61.10 7.70 3.23 0.61 0.98 0 00:05:00 12(POST-CON).POST-CON:8 0.03 484.00 63.30 7.70 3.45 0.10 0.18 0 00:05:00 13(POST-CON).POST-CON:9 0.05 484.00 95.80 7.70 7.19 0.36 0.51 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft9 (cfs) (ft) (ft) (ft) (days hh:mm) (ac-in) (min) 1 SCM-RISER Junction 631.00 637.00 631.00 0.00 0.00 8.26 632.00 0.00 5.00 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) Junction 630.50 637.00 630.50 0.00 0.00 11.94 631.82 0.00 5.18 0 00:00 0.00 0.00 3 OUTFALL-1 Outfall 629.50 11.94 630.32 4 SAND-FILTER Storage Node 634.00 637.00 634.00 0.00 9.47 635.59 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Link Summary SN Element Element From To(Outlet) Length Inlet Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow Peak Flow Total Time Reported ID Type (Inlet) Node Invert Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth Depth/ Surcharged Condition Node Elevation Elevation Ratio Total Depth Ratio (ft) (ft) (ft) (%) (in) (cfs) (cfs) (ft/sec) (ft) (min) 1 SCM-BARREL Pipe SCM-RISER SITE-JUNCTION(VIRTUAL) 34.00 631.00 630.50 1.4700 15.000 0.0120 8.26 8.49 0.97 7.88 1.00 0.80 0.00 Calculated 2 SITE-LINK(VIRTUAL) Pipe SITE-JUNCTION(VIRTUAL) OUTFALL-1 30.00 631.00 629.50 5.0000 15.000 0.0120 11.94 15.65 0.76 14.04 0.82 0.65 0.00 Calculated 3 ORIFICE-1 Orifice SAND-FILTER SCM-RISER 634.00 631.00 3.000 0.24 4 SCM-RISER-RIM Orifice SAND-FILTER SCM-RISER 634.00 631.00 36.000 7.93 5 SAND-MEDIA Outlet SAND-FILTER SCM-RISER 634.00 631.00 0.09 6 EMERGENCY-SPILLWAY Weir SAND-FILTER SITE-JUNCTION(VIRTUAL) 634.00 630.50 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin Hydrology Subbasin:{POST-CON}.POST-CON:1 Input Data Area(ac) 0.11 Peak Rate Factor 484 Weighted Curve Number 98 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.11 - 98 Composite Area&Weighted CN 0.11 98 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 7.46 Peak Runoff(cfs) 1.1 Weighted Curve Number 98 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:1 Rainfall Intensity Graph 11 10.5 10 - 9.5 9 - 8.5 - 8 7.5 - 7 6.5 - L g = 5.5 m C 5 - co Et 4.5 4 - 3.5 3 2.5 2 1.5 - 1 0.5 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.2 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 0.75 0.7 N v 0.65 0.6 S 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Input Data Area(ac) 0.09 Peak Rate Factor 484 Weighted Curve Number 89.3 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.09 - 89.3 Composite Area&Weighted CN 0.09 89.3 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 6.42 Peak Runoff(cfs) 0.85 Weighted Curve Number 89.3 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:10 Rainfall Intensity Graph 11.5 11 — • - 10.5 10 9.51{ 9 8.5 8 7.5 7 L 6.5 c 6 16 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 . 1 0 2 4 6 8 10 • 12 14 16 18 20 22 • 24 26 28 30 32 34 36 38 40 42 44 46 • 48 Time(hrs) Runoff Hydrograph 0.95 0.9 0.85- 0.8- i 0.75- 0.7- 0.65 0.6- 0.55- 172,N 0.5 c 0.45 z 0.4- 0.35 0.3 0.25 • 0.2 0.15 0.1 0.05 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Input Data Area(ac) 0.16 Peak Rate Factor 484 Weighted Curve Number 73.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.16 - 73.8 Composite Area&Weighted CN 0.16 73.8 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 4.63 Peak Runoff(cfs) 1.17 Weighted Curve Number 73.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:11 Rainfall Intensity Graph 11.5 11 - - 10.5 10{r 9.51 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 1 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.25 1.2 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 0.75 a 0.7 ▪0.65 O• 0.6 • K 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Input Data Area(ac) 0.38 Peak Rate Factor 484 Weighted Curve Number 77.4 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.38 - 77.4 Composite Area&Weighted CN 0.38 77.4 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 5.05 Peak Runoff(cfs) 2.99 Weighted Curve Number 77.4 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:12 Rainfall Intensity Graph 11.5 11 - • - 10.5 101 9.51 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 . 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 3.1 3 2.9 2.8 2.7 2.6 2.5 - 2.4 2.3 2.2 2.1 2 1.9 1.8 wU 1.7 1.6 o 1.5 z 1.4 1.3 - 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 67 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.19 - 67 Composite Area&Weighted CN 0.19 67 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 3.87 Peak Runoff(cfs) 1.18 Weighted Curve Number 67 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:13 Rainfall Intensity Graph 11.5 11 - - 10.5 10{r 9.51 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.25 1.2 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 0.75 a 0.7 0.65 O 0.6 • K 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Input Data Area(ac) 0.08 Peak Rate Factor 484 Weighted Curve Number 93 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.08 - 93 Composite Area&Weighted CN 0.08 93 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 6.86 Peak Runoff(cfs) 0.82 Weighted Curve Number 93 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:2 Rainfall Intensity Graph 11.5 11 — • - 10.5 10 r 9.51{ 9 8.5 8 7.5 7 L 6.5 c 6 16 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 . 1 0 2 4 6 8 10 • 12 14 16 18 20 22 • 24 26 28 30 32 34 36 38 40 42 44 46 • 48 Time(hrs) Runoff Hydrograph 0.9 0.85- 0.8 0.75 0.7 0.65 0.6- 0.55- - JI` 0.45- 0 C 0.4 0.35 0.3 0.25 0.2- 0.15- • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 75.5 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 75.5 Composite Area&Weighted CN 0.19 75.5 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 4.83 Peak Runoff(cfs) 1.46 Weighted Curve Number 75.5 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:3 Rainfall Intensity Graph 11.5 11 - • - 10.5 10{r 9.51 • 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C ce 4.5 4 3.5 3 2.5 2 1.5 . 1 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.55 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 0.95 - 0.9 O 0.85 0.8 O 0.75 z 0.7 • 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Input Data Area(ac) 0.18 Peak Rate Factor 484 Weighted Curve Number 78.6 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.18 - 78.6 Composite Area&Weighted CN 0.18 78.6 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 5.18 Peak Runoff(cfs) 1.45 Weighted Curve Number 78.6 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:4 Rainfall Intensity Graph 11.5 11 - • - 10.5 10{r 9.51 • 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C ce 4.5 4 3.5 3 2.5 2 1.5 . 1 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.55 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 0.95 - 0.9 O 0.85 0.8 O 0.75 z 0.7 • 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 O 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Input Data Area(ac) 0.15 Peak Rate Factor 484 Weighted Curve Number 61 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.15 - 61 Composite Area&Weighted CN 0.15 61 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 3.22 Peak Runoff(cfs) 0.75 Weighted Curve Number 61 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:5 Rainfall Intensity Graph 11.5 11 — • - 10.5 10 r 9.51{ • 9 8.5 7.5 7 L 6.5 c 6 16 5.5 C 5 4.5 4 3.5 2.5 2 1.5 . 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.8 0.75- 0.7- 0.65- 0.6- 0.55- 0.5- 00.45- U - 0.4- O C - K 0.35 0.3 0.25 0.2 0.15 0.1 0.05 • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Input Data Area(ac) 0.02 Peak Rate Factor 484 Weighted Curve Number 95.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.02 - 95.8 Composite Area&Weighted CN 0.02 95.8 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 7.14 Peak Runoff(cfs) 0.19 Weighted Curve Number 95.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:6 Rainfall Intensity Graph 11.5 11 — • - 10.5 10 r 9.51{ 9 8.5 8 7.5 7 L 6.5 c 6 16 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 . 1 0 2 4 6 8 10 • 12 14 16 18 20 22 • 24 26 28 30 32 34 36 38 40 42 44 46 • 48 Time(hrs) Runoff Hydrograph 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14- 0.13- - 0.12 0.11 G 0.1 c K 0.09- 0.08- 0.07- 0.06- 0.05 0.04 0.03 0.02 0.01 } 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Input Data Area(ac) 0.19 Peak Rate Factor 484 Weighted Curve Number 61.1 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number - 0.19 - 61.1 Composite Area&Weighted CN 0.19 61.1 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 3.23 Peak Runoff(cfs) 0.98 Weighted Curve Number 61.1 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:7 Rainfall Intensity Graph 11.5 11 — - 10.5 10{r 9.51 9 8.5 8 7.5 7 L 6.5 c 6 N 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 1.05 1 0.95 0.9_ 0.85 0.8 0.75 0.7- 0.65 y 0.6- 0.55' z - K 0.45 0.4 0.35 0.3 0.25 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Input Data Area(ac) 0.03 Peak Rate Factor 484 Weighted Curve Number 63.3 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.03 - 63.3 Composite Area&Weighted CN 0.03 63.3 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 3.45 Peak Runoff(cfs) 0.18 Weighted Curve Number 63.3 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:8 Rainfall Intensity Graph 11.5 11 — • - 10.5 10 r 9.51{ • 9 8.5 8 . 7.5 7 L 6.5 • c 6 • 16 5.5 C 5 4.5 . 4 • 3.5 3 2.5 2 1.5 . 1 • 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.19 0.18 0.17- 0.16- 0.15 0.14- 0.13 0.12 0.11- N 0.1- c 0.09 7 K 0.08- 0.07- 0.06 0.05- 0.04- 0.03 0.02 0.01- 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Input Data Area(ac) 0.05 Peak Rate Factor 484 Weighted Curve Number 95.8 Rain Gage ID SILER-CITY Composite Curve Number 32 Area Soil Curve Soil/Surface Description (acres) Group Number 0.05 - 95.8 Composite Area&Weighted CN 0.05 95.8 Subbasin Runoff Results Total Rainfall(in) 7.7 Total Runoff(in) 7.19 Peak Runoff(cfs) 0.51 Weighted Curve Number 95.8 Time of Concentration(days hh:mm:ss) 0 00:05:00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Subbasin:{POST-CON}.POST-CON:9 Rainfall Intensity Graph 11.5 11 - • - 10.5 10 9.51{ 9 8.5 8 7.5 7 L 6.5 c 6 16 5.5 C 5 4.5 4 3.5 3 2.5 2 1.5 . 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) Runoff Hydrograph 0.54 0.52 - 0.5 0.48 - 0.46 - 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 U `�'0.28 0 0.26 0.24 CC 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 Time(hrs) This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 SCM-RISER 631.00 637.00 6.00 631.00 0.00 0.00 -637.00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 630.50 637.00 6.50 630.50 0.00 0.00 -637.00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:mm) (days hh:mm) (ac-in) (min) 1 SCM-RISER 8.26 0.00 632.00 1.00 0.00 5.00 631.07 0.07 0 11:58 0 00:00 0.00 0.00 2 SITE-JUNCTION(VIRTUAL) 11.94 4.17 631.82 1.32 0.00 5.18 631.06 0.56 0 11:57 0 00:00 0.00 0.00 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No.of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 SCM-BARREL 34.00 631.00 0.00 630.50 0.00 0.50 1.4700 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 2 SITE-LINK(VIRTUAL) 30.00 631.00 0.50 629.50 0.00 1.50 5.0000 CIRCULAR 15.000 15.000 0.0120 0.5000 0.5000 0.0000 0.00 No 1 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min) 1 SCM-BARREL 8.26 0 11:58 8.49 0.97 7.88 0.07 1.00 0.80 0.00 Calculated 2 SITE-LINK(VIRTUAL) 11.94 0 11:57 15.65 0.76 14.04 0.04 0.82 0.65 0.00 Calculated This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Nodes Storage Node:SAND-FILTER Input Data Invert Elevation(ft) 634.00 Max(Rim)Elevation(ft) 637.00 Max(Rim)Offset(ft) 3.00 Initial Water Elevation(ft) 634.00 Initial Water Depth(ft) 0.00 Ponded Area(ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve:SAND-FILTER Stage Storage Storage Area Volume (ft) (ft') (ft3) 0 3600 0 1 4117 3858.5 2 4657 8245.5 3 5221 13184.5 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. Storage Area Volume Curves Storage Volume(ft3) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 3 .. —3 2.9= .................................................................................................................................................... .............. .............. ............. ............. .............. __.... =2.9 ................................:........................................................................... ......................................>....................................._.............................. =2.8 2.7 ..............e.................................................................................i............... ........... ............ ........... • ........... ........... ......... =2.7 2.6 _..._.........................................................._........................................_.......................................... .............. .............. ............. ......... ......._.__ =2.6 2.5 ........................................_...........................................5 .........................................._................... _ .............. ............. _ .......... .............. • ............_ =2.5 2.4 ......................................................................................................................................................... .............. ..............• ............. .. ....... .............. .............. —2.4 2.3 ..........................................._.....................}...................._...................._......................._.............................................................. .......... ............. .............. _ ............_ =2.3 2.2 __.................o.................................................................................................................o................. .............. .............. .... ..... • ............. .............. ............_ =2.2 2.1 __................................................................................................................................b................. .............. .......... .............. ............. .............. ............_ —2.1 2 ._..........................................................._i......................i.......................i............................................•................ ..... .... ............. ............. .............. ......._.__ =2 1.9 ..........................................._...................._.........................................._........................................ ............ .............. ............. ............. .............. i. ............_ =1.9 1.8 1,,........................................._........................................................................................}...................._...... ...... ........................................... _ ............. .............. _ ............_ _.=1.8 1.7 .,_..................................................................................................................................._................._ ..... ................................. ............. ............. .............. _ ............_ -1.7 E. 1.6 __.................................................................................:.......................i.................. ...__.... .............. .............. ............. ............. .............. .............. =1.6 w W1.5 ,___..................................._........................................................................................'.............. .............. _ .............. ............. _ ............. .............. _ ............_ _._1.5 41 a - a y1.4 .......................o............................................>......................i.......................i............ ... ............. .............. .............. ............. ............. .............. ......._.__ 1.4 y 1.3 ,............_....._..._..............._......................__....._....._.........................._.. ..... ....._.._.........._....._....._....._....._. _ ._........... ............. _ ....._...... .............. _ .._..._..._ —1.3 1.2 JJl....................5.................................................................5................ ...5 .........................................i.................. _ .............. ............. _ ............. .............. _ ............_ _.=1.2 1.1 ........................................:...................._....................._..._....... ......;....................................... .............. .............. ............. ............. .............. ............_ =1.1 0.9 ___...............e..................................................... .._............................................... ............. .............. .............. ............. ............. .............. ............_ =0.9 0.8 --._ ..i. _.. ..._........i.......................i....................................... .............. .............. ............. ............. i................ ......._.__ =0.8 0.7 ....................i...................................... ... ....._..................................._i......................i.................. ...._........ .............. ............. ....._...... .............. ......._..._ =0.7 0.6—......................_....................._...... ....................................................._................... ............. .............. .............. ............. ............. .............. ............_ =0.6 0.5—.,_.................__............................................................................................................_...................._....................__........................................ ............. .............. ............_ j =0.5 0.4 --_............................. ...........................e......................i.......................i.................. ............. .............. .............. ............. ............. .............. ............_ =0.4 0.3 --._............_... _.........._......................._.....................................................................r................. .............. .............. ............. ............. .............. ............_ =0.3 0.2 _.. ..................:...................i..................i....................i. ......... ............ ........... ........... ........... ............ ........ =0.2 0.1=.1. __ _............._..............._......................_....._....._.........................._�...._....._..... ............. ...._....._. ._........... ............. ....._...... • .............. .._..._..._ =0.1 3,600 3,700 3,800 3,900 4,000 4,100 4,200 4,300 4,400 4,500 4,600 4,700 4,800 4,900 5,000 5,100 5,200 Storage Area(ft') — Storage Area — Storage Volume II This document was created by an application that isn't licensed to use novaPDF. 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Storage Node:SAND-FILTER(continued) Outflow Weirs SN Element Weir Flap Crest Crest Length Weir Total Discharge ID Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCY-SPILLWAY Trapezoidal No 635.75 1.75 10.00 1.25 3.33 Outflow Orifices SN Element Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice ID Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) 1 ORIFICE-1 Side CIRCULAR No 3.00 634.50 0.61 2 SCM-RISER-RIM Bottom Rectangular No 36.00 36.00 635.25 0.63 Output Summary Results Peak Inflow(cfs) 9.47 Peak Lateral Inflow(cfs) 9.47 Peak Outflow(cfs) 8.26 Peak Exfiltration Flow Rate(cfm) 0 Max HGL Elevation Attained(ft) 635.59 Max HGL Depth Attained(ft) 1.59 Average HGL Elevation Attained(ft) 634.37 Average HGL Depth Attained(ft) 0.37 Time of Max HGL Occurrence(days hh:mm) 0 11:58 Total Exfiltration Volume(1000-ft3) 0 Total Flooded Volume(ac-in) 0 Total Time Flooded(min) 0 Total Retention Time(sec) 0 This document was created by an application that isn't licensed to use novaPDF. Purchase a license to generate PDF files without this notice. SHWT Report BREC, P.A. Dollar General— Store#08606 19 C2S ENGINEERING & ENVIRONMENTAL SCIENCE COMPANY 3008 ANDERSON DRIVE,SUITE 102 RALEIGH,NC 27609 (919)781-7798 August 28, 2023 Mr. Frank Chapman Davie Construction Co. 152 E. Kinderton Way, Suite 200 Advance,NC 27006 RE: Seasonally High Water Table Evaluation (Revised) Chatham Veterinary Services Building Trinity Street& Greensboro Ave. Siler City,NC Dear Mr. Chapman: This letter discusses the Seasonally High Water Table (SHWT) evaluation for the above referenced site. The subject property is southeast of Trinity Street and Greensboro Avenue in Siler City, NC. Figure 1 in Attachment A provides a vicinity map showing the location of the site. Proposed for construction is a stormwater basin with a base elevation of approximately 634 ft. as indicated by the plans by BREC. Below the base, a sand filter is provided that terminates at Elevation 632 ft. Seasonally High Water Table (SHWT)Evaluation According to the U.S. Department of Agriculture Soil Survey of Chatham County, North Carolina, the subject property is underlain by Georgeville soils which have an estimated seasonally high groundwater table greater than 72 inches below ground surface (BGS) (See Figure 2). For site specific evaluation purposes, one (1) hand auger boring (B-5) was conducted at the proposed stormwater structure. The location of the boring is provided in Figure 3. As the soils were hand augered, the soil color was compared to the Munsell Soil Color Chart to estimate seasonally high water tables and the soils were visually classified in accordance with the Unified Soil Classification System. Any mottling or soil color with a Chroma of 3 and less is considered indicative of the seasonally high water levels. At ground surface (Elevation 639 ft.), 4 inches of topsoil was encountered. Below the topsoil and extending to 2.5 ft. below ground surface, fill was encountered consisting of red (2.5YR-4/8), Page 2 Chatham Veterinary Service Siler City minor reddish-gray (5YR-5/2) silty CLAY (CL). The underlying virgin soil consisting of red (2.5YR-5/8), with minor yellowish-brown (10YR-5/6), yellow (2.5YR-7/6), red (10R-4/8) and pale yellow(2.5Y-8/4) mottling was present below the fill and extended to termination of the 10 ft. boring. Based on soil color and site observations, the seasonally high water table is greater than 10 ft. below ground surface (Elevation 629 ft.), and the separation between the lowest point of the stormwater structure and the seasonally high water table is greater than the 3 ft. Closure We appreciate serving you on this project. Please contact us if you have any questions. Sincerely, 12 r T. Patrick Shillington, QuFslO% •. President 5 /2-3 1 Attachment A: Figures `••.. Attachment B: Boring Log ti !fit....ti, ," C2� Attachment A: Figures c G2S Bus (. .. , • ,4a I ,'_ r C. 421 �". 1 ' k..__, )i i et-. / ' .' •,. s ,-� fIIf / •- '00. I ! ) I , _Q . ! \.2: .I 4 - ,( ; _ FOX sr , / i, I,., .,, ,_ _ - i - '� /r , , — Z •-, .f l *r• 1� ,� '� \ ,1, - ' ,I :►)�'`- , ,t ,,,.�-,-;'! HILL' ST c-15T �._-c,Ii- tiv ,.(,'-.As. ___.-. .`.., 'TRINITY ST — \\ '`- L4-600 , , Icy ` - - i _ ,, \ rJ '' (,. Vir ()) r y �1 WpMBLE Si- ,1 12TH S/ ' 't� .. - _` - .-_j �) . i -_ . , , I , 1 •17::— \ '\." ', '2. - ) , , ) , -... .. , i re sl r1 ;5� \akwood E 9TH ST & -- . Wry-- `: Cem I ' 1 , J E 5TH S - ; , ztiil f �1 ', NS z�� ' ., , - • y� ` N r,• '�N Sir II , c �, pR ' �^ 1 t 6` I c.� f'r SHEFFIELI' io, . \ ''t G....).Oil': :- ILO q ( '' F ..- F.G.ti _ ,n _. / i' F ENGINEERING&ENVIRONMENTAL N /� SCIENCE COMPANY (jl (`- 3008 ANDERSON DR.,SUITE 102 jr RALEIGH,NORTH CAROLINA 27609 (919)781-7798 i Vicinity Map 05/19123 Chatham Veterinary Trinity St. & Greensboro AveF,°UREN°. Scale: 1" = 100o Siler City, NC ,- ...... r• ... ....e. ...\\ .....f) 4,- ,:lt4 '*i 1 , •, j GI'82 fir bit . Agi . . 31410 ' 31 4.3 18 . . • , 7 \ I P Ak r , z P . WI SI , • . • '" P' . D 1...g‘ di n',,i; r -, • -*I to . . i . . , 7 -...1 . , P ! ....• 4441 . ,,,,, Pi ' 'i • . I fa',$.7.; • ''It •' --t-i--.'. 4,...i.. T..II".4.- I.F • - E Ill,cl 1 MmoriDr • .•t1) .' -. 'r.. 1,,.. ,. '•;bL 1- 44'-'.. u '• 1 .• ..• i:1 - 1.. •g . ''.. .. •....,Ccn es: .-: 1.• V 11 IF • • , 4.3.• E 0111 St - n'.16 t l' - • - . - •,i • , , - ! •,.• . • , , . . •, 0.. •• ,ii,„, ,,r), '-' e ,-• • -.:,',.. ', ,,... ' ..4,;',51-> %. ...i.*:.. • \ •, - • . _ • . • • ati,:" 0 •* 4k. 4 4 .lir 4-..,,,,.....,9• ' ICel,•'6\ ent.‘"5.:.. on'''' '- ' , i 4, •,._.0 ..... . .., , .. . ..... . .‘,.,•,., .,. . , ,..... .-, , . ...1,... ,....#. 6,1...' • ......-'''' '* ,....,: S / _ ••** . .I: * Seasonally High Soil Symbol Soil Name Groundwater Table GnC Georgeville >6.0' ENGINEERING&ENVIRONMENTAL N SCIENCE COMPANY Af R/1°_ZEIGA7111:14EORIT°H NCIDAR146SLYITAE.jM9 irk fl (919)781-7798 ii '-1- ' 0 kTE• USDA Soil Survey 05/19/23 il) Chatham Veterinary FIGURE NO Trinity St. & Greensboro Ave Scale: 1"= 1000' 2 Siler City, NC __... J m 1- s� co N Z uI Q a z> Z ai s oa Q w V Z V n O a6 w 0,-- n C (s II 2Z WD m O C 0 ram OZ m .— •c _o ea co) Z 'Z - to a= V V C Z a) N z M J J > Q`) +�' w Q4 a) co 0 U ors H j_- 8 ortn w=u - - -- --- _. — ��i BYSUILOING/TYPE B PUFFER -- - -- Iil im _ T I / I I 2r''''''-7--.--------7- / _ . 17x16 , - Ill DUMPSTER • ENNCLOSURE .� — - ' 129INLET-1 II RI_..639.65 77 'WV"'7 I i OPE INV OUT,:635.70I 1 CURB INLET-2 �y - _ 9 .� RIM:639.85 S 03.55_401f 64.69'TIE IS HDPE INV IN:635.20 �'/ j - -- ® 15'HDPE INV OUT:635.10 /'/� - _ O __4_/.. ..-: I , ...; ...••w,c� aS U e1 . _ ± ....J.- VET OFFICE O , to •.•Ae 4,074 SF __1- ill, f i \1\ 0) ter 1 �z it r o / \1 •1_ t\ c:.t I �f i/ 1 1 co \ t m ; CURB INLET39.50 3 I co RIM OPEI0 fAaRDEJT3 i RIM:637.50 ISL9 0 ,1 i/ J 11 - - - . ... - _-. ll= , . . ..i 12'NDPEMVOUF:63550 , ""� Ir`��` 12. . ` - �w YARD INLET-2 , /) - (S� y• _ RIM:637.50 GY �11 � 10'PVCINVIN:634.50 e i Np War '6i\ 'e ` ¢pc- d9 ,,;,.r �GM•a 12'HOPE INVIN:63d.50 • t2 •i. OM I... "� �y ► "`/ O�"r�/, }1eLOPEINVWT34.50 r. 10 \ . i ' ~' - = ,,,d rrr„� "rrr \- (` i' `o+um� '� ` \ 'y,,,,,,, 6 I ,.3 _ /, --� CURB INLET-4 Ai ( i• �Q /- �. RIM:639.85 ,?w i ''',....S,/ P/ I I ,� �_ 15'HOPE INV IN 7 633.35 Q�' _ m 1•I 15'HOPE INV IN:633.35 t ` �I\-C:.: I 15'HOPE INV WT:63325- it. GlFi - - n m a 11 -I /" SAND I 3- m i6r. _ _OUTLET STRUCTURE i p, -1• RIM:0.00 K 7 -41r11 _� -$ ISHDPE INV OUT:-2.36' -- • -a 160.00' E++ _ aa. _ / 1/N 0713'401 _ e.er 1_ F NLW S:• l 7I=J---- _ Ft_ L—c- —�-u LIL i�o—tt�L R Attachment B: Boring Logs e2s UNIFIED SOIL CLASSIFICATION SYSTEM MAJOR GROUP TYPICAL NAMES LABORATORY CLASSIFICATION CRITERIA DIVISIONS SYMBOL WELL GRADED w `" D60 [ w GRAVEL-SAND MIXTURES, r,,. O _ > 4 1 <C (ICI) F > C1w LITTLE OR NO LINES. O. �� D l0 a I]IO x U6U c 3 w�� Z POORLY GRADED GRAVELS, O Q� UQ NOT MEETING ALL GRADATION GRAVEL-SAND MIXTURES, - cn„ ts.1 GP LITTLE OR NO LINES. a vQ 1,1 ��'zp REQUIREMENTS FOR GW. w v-10 z U W' A..T�--' ¢0d a' ¢ 3 Z L07¢t Fx- SILTY GRAVELS, Ill aoG C�c70c4 ATTERBERG LIMITS sK GM GRAVEL-SAND-SILT MIXTURES. >wC7 x'5 BELOW"A"LINE OR ABOVE"A"LINE WITH z zw Q OW n P.I.BETWEEN 4 AND 7 ' < sa ,w {7 wcn ",-."'Cl P.I.LESS 4- BORDERLINE vs ,s- wa . z c7 a .a: ..,..-.. CASES REQUIRING USE -1 ,, x� I`I,.a 2 Q¢ e N ATTERBERG LIMITS OF DUAL SYMBOLS. O ,. Q GC CLAYEY GRAVELS, Q Zr, " ABOVE"A"LINE WITH I v: GRAVEL-SAND-CLAY MIXTURES. z ` A c7 U w.; z�- P.I.GREATER THAN 7. w dam\ • Q z cn WELL GRADED SANDS, a-"' `4"P-O Db0 2 ,- z 7 SW GRAVELLY SANDS, 0 Z> Cti=�� >6 1 C = ( d < a ¢ LITTLE OR NO LINES. rn Ow 110 X 1360 w E- V] W 0,Vj I a z ____.........._- G Z c v; d �> ¢ POORLY GRADED SANDS, Q q�3 O ¢ �m E- e�1 NOT MEETING AF.,I,GRADATION e� 4 ,, SP GRA,VEI,I,Y SANDS, Z Z .Oa REQUIREMENTS FOR SW. z y� U LITTLE OR NO LINES. W a•z z Qp-' I..I 0 A ¢ea a ¢u, ATTERBERG LIMITS p "'�4T x SILTY SANDS, wM¢ as SM F BELOW"A"LINE OR LIMITS PLOTTING EN z SAND-SILT'MIXTURES.' > A za `" cKc4 w P.F.LESS THAN 4. I-IATCHED ZONE WITH �w ca __.......___ P.I.BETWEEN 4 AND 7 H aZ - W V^- ATTERBERG LIMITS ARE BORDERLINE c= z'� CLAYEY SANDS, F w¢< AIIOVE"A"LINE WITH CASES REQUIRING USE d SC SAND-CLAY MIXTURES. w NM-1 P.I.GREATER THAN 7. OF DUAL SYMBOLS. Va Q ca on U INORGANIC SILTS,ROCK FLOUR, I.PLOT INTERSECTION OF P.I.AND LL AS DETERMINED FROM VERY FINE SANDS,SILTY OR ATTERBERG LIMITS TESTS. >-' MI CLAYEY FINE SANDS,CLAYEY 2.POINTS PLOTTED ABOVE a LINE INDICATE CLAY SOILS, ¢ a SILTS WITH SLIGHT PLASTICITY. THOSE BELOW THE A LINE INDICATE SILT. � h w a INORGANIC CLAYS OF LOW TO 70 z CT; MEDIUM PLASTICITY,GRAVELLY ¢ N CLAYS,SANDY CLAYS, 60 --- - — SILTY CLAYS,LEAN CLAYS. z c.nF. CH .- �' v OL INORGANIC SILTS AND ORGANIC 50 PVc cn a SILTY CLAYS OF LOW PLASTICICTY. ^ CI, a. 40. Oa .�._. "I INORGANIC SILTS,MICACEOUS OR W w MI-I DIATEMACEOUS FINE SANDY OR A 30 —------_ Z h SILTY SOILS,ELASTIC SILTS. Z ram- ¢ z I C7 0 ,z- INORGANIC CLAYS OF HIGH U z ° A w CH PLASTICITY,FAT CLAYS. 10 MH or OH .Z a ¢ wco 7 CI]F x F. ML c r OL ,- OH ORGANIC CLAYS OF MEDIUM TO 0 ]0 20 30 40 SU 60 70 AO 90 100 HIGH PLASTICITY,ORGANIC SILTS. o LIQUID LIMIT(LL) U azP' PEAT AND OTHER HIGHLY PLASTICITY CHART xad PI ORGANIC SIOLS. xOQ • • ENGINEERING & ENVIRONMENTAL • SCIENCE COMPANY . CTNIFIED SOIL CLASSIFICATION SYSTEM 3008 ANDERSON DR., SUITE 102 BALEIGH, NORTH CAROLINA 27609 ASTM DESIGNATION D-2487 (919) 781-7798 • CLIENT: Davie Construction Co. P 07/08/23 _....__ ..._ __- _.. BORTNG NO.: - _DATE: __...._ PROJECT NAME: Chatham Veterinary Services JOB NO.: PROJECT LOCATION:Trinity Street& Greensboro Ave., Siler City, NC STATION: BORING METHOD: 3" Handauger FOREMAN: Pat Shillington ROCK CORE DIA.: INSPECTOR: SI-IELBY TUBE O.I .: J _ WELL DIAGRAM DESCRIPTION & REMARKS Lu� FF SURFACE ELEVATION: 639 ft. _.._.......__ U a Topsoil 4" - Red (2.5YR-4/8), minor reddish-gray(5YR-5/2) - sitly CLAY(CL), damp, trace of 57 stone (FILL) 2.5 Red(2.5YR-5/8),minor yellowish-brown(10YR-5/6) silty CLAY (CL), moist - Carbonaceous after 4 ft. s ..- - Yellow(2.5Y-7/6) after 6 ft. Red (10R-4/8) and pale yellow(2.5Y-8/4) mottling after 7 ft. 10 10.0 Boring Terminated at 10.0' 15- BORING METHOD GROUND WA'l'ER HSA-HOLLOW STEM ANGER \\� NOTED ON RODS FT. AFTER HRS.-_._... I I. -C:ONTINGOOS FLIOIIT AUGER *ORGANIC VAPOR MIMIR- -- DC-DRIVEN CASINO PARTS PER MILLION ® Al'COMPLETION FT. v - AFTER _.FIRS. PT MD-MUD DRILLING RC-ROCK CORING "*STANDARD PENETRATION TEST '' AFTER 5.5 HRS.... .Y_FT NV AF11iR_ FIRS. _. I.I Soils Report BREC, P.A. Dollar General— Store#08606 20 USDA United States A product of the National Custom Soil Resource Department of Cooperative Soil Survey, Agriculture a joint effort of the United Report for NStates Department of RCS Agriculture and other Chatham County Federal agencies, State Naturalagencies including the North Carolina Resources Agricultural Experiment Conservation Stations, and local Service participants Jr • r . _ a• µ t 1 Sears StOf• al N _.�__ r .liv. 1 `IA r. T f �r MIII■I•■M■M■M 100 ft May 15, 2023 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs)or your NRCS State Soil Scientist(http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nrcs142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice)or(202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made 5 Soil Map 8 Soil Map (Chatham Vet- Soil Map) 9 Legend 10 Map Unit Legend (Chatham Vet- Soil Map) 11 Map Unit Descriptions (Chatham Vet- Soil Map) 11 Chatham County, North Carolina 13 CmB—Cid-Lignum complex, 2 to 6 percent slopes 13 GnC—Georgeville-Urban land complex, 2 to 10 percent slopes 15 References 17 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Custom Soil Resource Report N Soil Map (Chatham Vet- Soil Map) M N N 638700 638710 638720 638730 638740 638750 638760 638770 638780 638790 638800 638810 638820 I 35°44'9"N XS 41111k"illigililliiiilli 35°44'9"N M 7 ` 1 R. it., 8 _� 4,..• GnC g M ., 41 o . — � , r o s W li w, r py 0 jiii 0Ab v7d f toT.ocEGHo • M C 7 35°44'6"N I I 35°44'6"N 638700 638710 638720 638730 638740 638750 638760 638770 638780 638790 638800 638810 638820 3 3 Map Scale:1:600 if printed on A landscape(11"x 8.5")sheet. F N Meters N °� N 0 5 10 20 30 °3' Feet 0 25 50 100 150 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UTM Zone 17N WGS84 9 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest(AOI) 14 Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) 1:24,000. Q Stony Spot Soilsit Very Stony Spot 0 Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale. Wet Spot ,..,. Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause p Other misunderstandingof the detail of mapping and accuracyof soil p Soil Map Unit Points pp 9 .• Special Line Features line placement.The maps do not show the small areas of Special Point Features contrasting soils that could have been shown at a more detailed Blowout Water Features scale. Streams and Canals kg Borrow Pit Transportation Please rely on the bar scale on each map sheet for map * clay Spot 1.44 Rails measurements. 0 Closed Depression o,/ Interstate Highways Gravel Pit Source of Map: Natural Resources Conservation Service .r US Routes Web Soil Survey URL: Gravelly Spot Major Roads Coordinate System: Web Mercator(EPSG:3857) ® Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator • Lava Flow Background projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the 46 Marsh or swamp Aerial Photography Albers equal-area conic projection,should be used if more It Mine or Quarry accurate calculations of distance or area are required. 4 Miscellaneous Water This product is generated from the USDA-NRCS certified data as O Perennial Water of the version date(s)listed below. v Rock Outcrop Soil Survey Area: Chatham County,North Carolina + Saline Spot Survey Area Data: Version 26,Sep 8,2022 Sandy Spot Soil map units are labeled(as space allows)for map scales Severely Eroded Spot 1:50,000 or larger. • Sinkhole Date(s)aerial images were photographed: Apr 23,2022—Apr 31 Slide or Slip 27,2022 oa Sodic Spot The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend (Chatham Vet - Soil Map) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI CmB Cid-Lignum complex,2 to 6 0.0 0.3% percent slopes GnC Georgeville-Urban land 1.6 99.7% complex,2 to 10 percent slopes Totals for Area of Interest 1.6 100.0% Map Unit Descriptions (Chatham Vet - Soil Map) The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 11 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Chatham County, North Carolina CmB—Cid-Lignum complex, 2 to 6 percent slopes Map Unit Setting National map unit symbol: 1 Ivt7 Elevation: 150 to 650 feet Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 59 to 66 degrees F Frost-free period: 200 to 240 days Farmland classification: Farmland of statewide importance Map Unit Composition Cid and similar soils: 50 percent Lignum and similar soils: 20 percent Minor components: 2 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Cid Setting Landform: Interfluves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Convex Across-slope shape: Linear Parent material: Residuum weathered from metavolcanics and/or argillite Typical profile Ap-0 to 2 inches: silt loam E-2 to 5 inches: silt loam Bt1 -5 to 14 inches: silty clay loam Bt2- 14 to 24 inches: silty clay BC-24 to 28 inches: silty clay loam Cr-28 to 35 inches: weathered bedrock R-35 to 80 inches: unweathered bedrock Properties and qualities Slope: 2 to 6 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock; 20 to 40 inches to lithic bedrock Drainage class: Moderately well drained Runoff class: Very high Capacity of the most limiting layer to transmit water(Ksat):Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table:About 12 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Low(about 4.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: D 13 Custom Soil Resource Report Ecological site: F136XY815NC -Acidic upland hardpan woodland, seasonally wet and seasonally dry Hydric soil rating: No Description of Lignum Setting Landform: Interfluves Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Convex Across-slope shape: Linear Parent material: Residuum weathered from metavolcanics and/or argillite Typical profile Ap- 0 to 6 inches: silt loam E- 6 to 11 inches: silt loam Bt1 - 11 to 22 inches: silty clay Bt2-22 to 29 inches: silty clay BC-29 to 47 inches: silty clay Cr-47 to 80 inches: weathered bedrock Properties and qualities Slope: 2 to 6 percent Depth to restrictive feature:40 to 60 inches to paralithic bedrock Drainage class: Moderately well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat):Very low to moderately low(0.00 to 0.06 in/hr) Depth to water table:About 12 to 30 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 6.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: D Ecological site: F136XY810SC-Acidic upland forest, seasonally wet Hydric soil rating: No Minor Components Wehadkee, undrained Percent of map unit:2 percent Landform: Depressions on flood plains Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: Yes 14 Custom Soil Resource Report GnC—Georgeville-Urban land complex, 2 to 10 percent slopes Map Unit Setting National map unit symbol: 1 Ivvj Elevation: 270 to 700 feet Mean annual precipitation: 37 to 60 inches Mean annual air temperature: 59 to 66 degrees F Frost-free period: 200 to 240 days Farmland classification: Not prime farmland Map Unit Composition Georgeville and similar soils: 55 percent Urban land:40 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Georgeville Setting Landform: I nterfl uves Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Interfluve Down-slope shape: Convex Across-slope shape: Convex Parent material: Residuum weathered from metavolcanics and/or argillite Typical profile A -0 to 8 inches: silt loam Bt1 -8 to 15 inches: clay loam Bt2- 15 to 45 inches: clay BC-45 to 80 inches: loam Properties and qualities Slope: 2 to 10 percent Depth to restrictive feature: More than 80 inches Drainage class:Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Ecological site: F136XY820GA-Acidic upland forest, moist Hydric soil rating: No 15 Custom Soil Resource Report Description of Urban Land Setting Parent material: Impervious layers over human transported material Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydric soil rating: No 16 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 17 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf 18