SW5190901_7 - 2019-08-29 Stormwater Report_9/27/2019

Stormwater
Management Report
Deliverance Church
SEA Job # 5091
Summey Engineering
Associates, PLLC
PO Box 968
Asheboro, NC 27204
Phone: [phone]
Fax: [phone]
Email: [e-mail]
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Deliverance Church
SEA,PLLC
Proiect Overview:
Deliverance Church will consist of a 8,400 sf place of worship located on the North side of US
Hwy 64 approximately 1,500 LF East of the intersection of Ellington Road/Stockyard Road and
Us Hwy 64 in Chatham County, Siler City, NC. The project parcel is approximately 6.61 acres
and is entirely wooded.
The soils on site are classified as Hydrologic Soil Group (HSG) D. The site does not lie within a
special flood hazard area per FIRM Panel 3710874200J. There is a perennial stream located on
site that runs from north to south through the majority of the parcel. There is also a small
intermittent stream located off of the perennial stream. There are approximately 78,649 sf of
jurisdictional wetlands on site. The entire site drains to an unnamed tributary of Blood Run
Creek, surface water classification C, that is part of the Cape Fear River Basin. See the Wetland
Delineation Report dated April 5m, 2019 for more information.
Stormwater Requirements:
This project must comply with stormwater rules set forth by the Town of Siler City, NC. The
maximum built upon area for low density is 7%. This project will have a proposed built upon
area density of 6.95% making this a low -density project per the Town of Siler City Unified
Development Ordinance Article XVI.
This project must also comply with NCDEQ stormwater quality regulations. The maximum
BUA for NCDEQ Low Density Project is 24%. The proposed BUA of 6.95% is well below the
24% BUA limit. Therefore, this project will have no permanent stormwater control measures
designed to treat for water quality or runoff attenuation.
A 100 ft buffer is required along all perennial streams and a 50 ft buffer is required along all
intermittent streams. This buffer has been provided and shown on all plan sheets. There is
approximately 381 sf of disturbance inside the stream buffer to connect the sanitary sewer
service to the existing manhole located inside the stream buffer. No impervious surfaces or
grading has been proposed inside the stream buffer.
Stormwater Treatment:
As a low -density project, no permanent stormwater control structures are proposed as a part of
this project. The project will utilize grass lined runoff conveyance channels and sheet now to
provide water quality protection. Two permanent grass swales are located at the western
boundary of the project. The remaining runoff that does not drain to the permanent swales will
sheet flow across the proposed grass and existing wooded areas prior to leaving the site.
The project as proposed, meets all the stormwater requirements set forth by the Town of Siler
City and NCDEQ. Refer the to "Attachments" for more information.

Deliverance Church
SEA,PLLC
Attachments:
Maps & Reports
- DA-1 Existing Site Area Map
- DA-2 Proposed Site Area Map
- USGS Topo Map
- NRCS Hardbound Soils Map
- Hydrologic Soils Group Map
- FIRM Panel 3710874200J
- Aerial

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DRAWING LEGEND
SITE AREA BOUNDARY
EXISTING WOODS
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EXISTING SITE
AREAS:
WOODS:
264,277 S.F. (6.07 AC)
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GRASS:
23,731 S.F. (0.54 ACC
TOTAL AREA:
288,008 S.F. (6.61 AC)
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DRAWING SCALE

DRAWING LEGEND
SITE AREA BOUNDARY
PROPOSED WOODS
IMPERVIOUS AREAS
PROPOSED
WOODS:
GRASS:
IMPV.:
SITE AREAS:
199,319 S.F.
68,678 S.F.
20,011 S.F.
(4.58 AC) 69.21 %
(1.58 AC) 23.85%
(0.459 AC)6.95%
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TOTAL AREA:
288,008 S.F.
(6.61
AC) 100.00%
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DRAWING SCALE

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UNITED STATES
DEPARTMENT OF AGRICULTURE
' NATURAL RESOURCES CONSERVATION SERVICE
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r�rrm
CHATHAM COUNTY, NORTH CAROLINA'
SILER CITY QUADRANGLE „are
SHEET NUMBER 8 OF 18 5
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3
This soil survey+tas compiled byte U.S. Deparbne,l of
Agriculture, Natural Resources CenservaAm Service and
_`oc ey cooperating age, des Base m ape are orthapholagraphs
0' prepared by the U.S. DeparRnent of the Interior, �edegical
Survey, tram 10&1999 aerial ph-grephy. Adminlslrellve
boundaries were acquired from the State of Narlh Cardin.
Boundaries mayhave been edited to conform WM features
represented an the publbel4 e,thophatog,,phy or to
e hance the dariry of the soils information.
Nerlh Ameri�n Batum el19H3iN AB83). aRS80 Spherdd
1--meter licks: Universal Transverse Mercator, —a-
- di-, grid ticksand land diusion data it drown, are
pprobmat gy positioned. Di gilal data are available for
die quadrangle.
79-25'00"
14
scA�E 1:zaau9
7111
Mrs z a — cFassaaass
SILER CITY, NORTH CAROLINA
7.5 MINUTE SERIES
SHEET NUMBER a nF 18
Sail map ddineeho,e e—ding beyond the dashed
Nhite quadran je —11he are far refere_ only and
ms induded on adjecentmap sheets.
I

a
ry
636010
35° 44' 14" N
35° 44' 1" N
Hydrologic Soil Group —Chatham County, North Carolina
636060 636110 636160 636210
636010 636060 636110 636160 636210
in
Map Scale: 1:2,010 if printed on A portrait (8.5" x 11") sheet.
Meters
N 0 25 50 100 150
Feet
0 50 100 200 ?00
Map projection: Web Mercator Conermordinates: WGS84 Edge tics: lfrM Zone 17N WGS84
USDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
m
636310
0
35° 44' 14" N
0
35° 44' 1" N
636310
N
9/24/2018
Pagel of 4

Hydrologic Soil Group —Chatham County, North Carolina
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
Soil Rating
Polygons
0
A
0
A/D
0
B
0
B/D
0
C
0
C/D
0
D
0
Not rated or not available
Soil Rating
Lines
r 0
A
r 0
A/D
B
r
B/D
N 0
C
r 0
C/D
r 0
D
r 0
Not rated or not available
Soil Rating
Points
0
A
0
A/D
0
B
0
B/D
❑ C
0 C/D
0 D
❑ Not rated or not available
Water Features
Streams and Canals
Transportation
— Rails
­0 Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Chatham County, North Carolina
Survey Area Data: Version 20, Sep 26, 2017
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: May 19, 2015—Oct
16, 2017
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.
USDA Natural Resources Web Soil Survey 9/24/2018
Conservation Service National Cooperative Soil Survey Page 2 of 4

Hydrologic Soil Group —Chatham County, North Carolina
Hydrologic Soil Group
Map unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
CmB
Cid-Lignum complex, 2
to 6 percent slopes
D
11.8
100.0%
GnC
Georgeville-Urban land
complex, 2 to 10
percent slopes
B
0.0
0.0%
Totals for Area of Interest
11.8
100.0%
Description
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive
precipitation from long -duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential) when
thoroughly wet. These consist mainly of deep, well drained to excessively
drained sands or gravelly sands. These soils have a high rate of water
transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well
drained soils that have moderately fine texture to moderately coarse texture.
These soils have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of
water transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink -swell
potential, soils that have a high water table, soils that have a claypan or clay
layer at or near the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in
their natural condition are in group D are assigned to dual classes.
USDA Natural Resources Web Soil Survey 9/24/2018
Conservation Service National Cooperative Soil Survey Page 3 of 4

Hydrologic Soil Group —Chatham County, North Carolina
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff.- None Specified
Tie -break Rule: Higher
USDA Natural Resources Web Soil Survey 9/24/2018
Conservation Service National Cooperative Soil Survey Page 4 of 4

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FLOOD HAZARD INFORMATION
SEE FIS REPORT FOR ZONE DESCRIPTIONS AND INDEX MAP
THE INFORMATION DEPICTED ON THIS MAP AND SUPPORTING
DOCUMENTATION ARE ALSO AVAILABLE IN DIGITAL FORMAT AT
HTTP://FRIS.NC.GOV/FRIS
-Without Base Flood Elevation (BFE)
Zone A. V, A99
With BFE or Depth zone AE, ao, AH, VE, AR
SPECIAL FLOOD
HAZARD AREAS — Regulatory Floodway
— 0.2 % Annual Chance Flood Hazard, Areas
of 1% Annual Chance Flood with Average
g
Depth LessThan One Foot orWith Drainage
Areas of LessThan One Square Mile Zm,e x
— Future Conditions 1% Annual
Chance Flood Hazard zone x
OTHER AREAS OF — Area with Reduced Flood Risk due to Levee
FLOOD HAZARD See Notes Zonex
OTHER — Areas Determined to be Outside the
AREAS 0.2% Annual Chance Floodplain Zonex
Channel, Culvert, or Storm Sewer
Accredited or Provisionally Accredited
GENERAL Levee, Dike, or Floodwall
STRUCTURES . . . . . . . . . . . . Non -accredited Levee, Dike, or Floodwall
BM5510 North Carolina Geodetic Su rvey bench mark
BM55100 National Geodetic Survey bench mark
BM5510
'�> Contractor Est. NCFMP Survey bench mark
o4z s-.z— Cross Sections with 1% Annual Chance
Water Su rface Elevation (BFE)
s8) - - - - - Coastal Transect
Coastal Transect Baseline
Profile Baseline
Hydrographic Feature
OTHER Limit of Study
FEATURES Jurisdiction Boundary
NOTES TO USERS
For Information antl . sab,.tthls ma vallable r,docts a atetl with Ibis FIRM lncI,d,, q e p,' p g
hlsmdo versmns,f mIs Flrxnn, h,wm order pr,doas,rme N'e,n'I Fmoa Insurance Prngram In genera[
please all me FEMA Map Inf—t , eXch'nge at 1-877-FEMA -MAP (1-e77-336-2627) or vistme FEMA Map
Service Cenbrweb,ib at htgh. //msc fema g,v. A, d L,p'nying FI„tlInsuance St,tly report, Letterof Map
Revision (LOMR) or Letter of Map Amentlment (LOMA) revising port,,,, of this panel, antl tliglbl versions of mi,
FIRM may be available. Vis[me North Carolina FI„tlplain Mapping Program websib at htgh //www.ncfl„tlmaps con
,r cenbc[ me FEMA Map Service Center.
C,mm.nit,es annexing lantl ,n atljacent FIRM panels musbbbin a current copy ,f the atljacent panel as well as
me tune,[ FIRM ntlex. These may be, rderetl hre,ty fmm the Map Service Center'tme number Ilsletl above.
F,rcem—by a,tl a,nn,,wme map dote, referm the Flo m,.a,ce SNtly rep,rtbrml,i.h,tllcdo,.
T, tleterrnme if fl„tl In„a,ce „v'il'ble In De cemm.nity, ...tactyour Nsua,ce agent, r all the Nat,,n'I
FI„tl Ins. ante Pregam at 1-800-638 6620.
Base map Inbnn'bn shown ,n this FIRM was previtletl In tligibl Dr—t by the North C'relin' FI„"I'in
Mapping Pmgam (NCFMP). The ... rce ,f this Inbnn'bn an be deter—etl from the mebtl'b'vall'ble In me
tliglbl FLOOD tlatabase antl In the Techni31 Support Data Notebook TARN)
ACCREDITED LEVEE NOTES TO USERS. If 3,'ccretllbtl levee nob appear,,, thl, panel ehe—th Your I,al
unity b ,bbin more IU,nm d E, such "the --tetl level ,f protect,„ pavmetl V,hbh may exceed the
1 �permcent-annual-chance Ievep'ntl Emergenry Act,„ PI", ,n the levee system(,) shown a, pavitlbg protect,,,.
T, mit,g'b fl„tl risk In re,itl.'1 risk areas, pmperty,wnersantl R,itlent, are ence.agetl t, c,,,,derfl„tl
antl fl„tlpm,fing ,r,ther protective measure,. F,r more Information ,n fl„tl I,,,r3,,e, Inbre,tetl
p'rte, sh,.ltl V"U the FEMA —the at M[p /Hvwwfema g,v/b.,Ue,—ph,dex dUP,
PROVISIONALLY ACCREDITED LEVEE NOTES TO USERS. If 3 PavI,I„airy Aceretlitetl Levee (PAL) n,te
appears,, this panel, check with your l,al community m obt- more IUor—bbn, such as the e,t,m'tetl level of
Ipatect,npmvitletl(which may exceed be 1_pereen t,ua3chance level) — Emerge, Action Pla,,,, the
levee systemlk show, as provitling protect,,,. T, maintain accretlltati0 n, the levee,w,er or c,mmunityls
Rqu,Rd b submit the tlata antl tl,mmenbb, nece—, b comply with the
65.10 of the NFIP regul't,,,,.
If me a"mu
'ty or owner doe, not pr,vme the nece—, tlata antl tl,cumenbb, ,r If the tlata antl tl,cumenbb,
pmvitletl Indc3te, the levee "tem does not comply with Section 65.10 requirement,, FEMA will revise the flood
hazard antl risk Inf,nn'bn for this area tro reflect tla'ceretlibbn of the levee ry,tem. T, mit,g'te flood risk In
resmual risk area,, property ,wnea antl resment— enc,uagetl b c,nsitlert„tl nuance antl Flootlpre,fing
r other pmtect,ve measures. For more Infor—ton on flood Inn3nce, Interesbtl p'rtessh,ultl visit the FEMA
Web,ite at M[p://.fema g0v/busines U,/intle-shtm
LIMIT OF MODERATE WIVE ACTION NOTES TO USERS ForSomecoTste l f ootling z,ne,the AE Zone
atego, has been tllvitletl by a Limit of M,tleate Wave Acton (LiM WAJ. The LiM WA represent, the approd—te
'ntlwardlimit,f the15-foot breaking wave. The effeD of wave hazard, between the VE Zone antl the LiM W1
(or betrveen me shoreline antl me LiMVW mrareas where VE Zones are not IdeUk ed) will be smila r to, but less
severe man m„e In the V E Zone.
Limit of Moderate Wave Action (LiMWA)
COASTAL BARRIER RESOURCES SYSTEM (CBRS) NOTE
This map may mcl.tle approximate h,untlaries ofthe CBRS for Informational purposes ,nry. ,rFl„tl Insurance Is not
Inv bble-knCBRS 're"mrs<mm.re, mat are newly hoot or,ub,bnt,blly Improved 'fbr the tlatelk
latetl on the nap. Formore lnbmabnsee hffp>/www rws g,vm'blbtan,em'bn/e„sbl b'rderhmn, he
FIS Report, ,r all heUS. Fish antl VNltllife Service Customer Service Center at 1-800-344WILD
.
® CBRS Area 0 Otherwise Protected Area
SCALE
eMao vmiecti^n:
North Carolina State Plane Proection Feet Zone 3200
Datum. PAD 1983 Horizontal NAVD 1988 Vertical
1 inch = 1,000 feet 1:12,000
0 500 1,000 2,000
Feet
Meters
0 150 300 600
PANEL LOCATOR
ALAMANCE COUNTY 'I ORANGE COUNTY
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MOORE COUNTY ,
DURHAM COUNTY
HARNETT COUNTY
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NORTH CAROLINA FLOODPLAIN MAPPING PROGRAM
NATIONAL FLOOD INSURANCE PROGRAM
'_OOD INSURANCE RATE MAP
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panel Contains:
COMMUNITY CID PANEL SUFFIX
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CIT TAM COUNTY 370299 8742 ..
LEE CITV,TOVVN OF 3]0058 8]42 ..
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MAP NUMBER
3710874200J
MAP REVISED
02/02/07

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