20001453 Ver 3_401 Application_20170411

Environmental Consultants,
8412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: [phone] • Fax: [phone]
sandec.com
April 11, 2017
S&EC Project* 1660.W9
To: NC DWR, 401 & Buffer Permitting Unit
Attri: Karen Higgins
Archdale Building _ 91h Floor
512 North Salisbury Street
Raleigh, NC 27604
From: Deborah E. Shirley
Soil & Environmental Consultants, PA
Re: Mingo Creek -Phase 7
Wake County, NC
On behalf of the applicant, please find attached a complete application and supplemental information
requesting a No Practical Alternatives review for Neuse River Buffer impacts from the N. C. Division of
Water Resources (NCDWR). Please contact me at [phone] if you have any questions or require
additional information.
Ppn.IFC:T SI IMMARY
Project Name
Mingo Creek -Phase 7
Project Type _
Residential Development
Owner / Applicant
Joyner Mingo Creek, LLC
CountV
Wake
Nearest Town
Waterbody Name
Basin
Knightdale
UT to Mingo Creek
Neuse
Index Number
27-32
Class
C, NSW
1WGTOYM0 w ►1�iI�G\G"'1
Stream Impact (acres): 0
Wetland Impact (acres): 0
Open Water Impact (acres): 6
Total Stream Impact (linear feet): r'r
Total Riparian Buffer= Impact (square feet): Zone 1: 8,293 ;Zone 2: 5,860
Attachments:
Riparian Buffer Authorization Form
Agent Authorization Form
USGS Topographic Map
NRCS Soil Survey Map
Buffer Determination letter-NBRRO 15-278
Test Boring Records
Existing Conditions
Environmental Impact Map
Howdenshire Run Plan & Profile
Stormwater Management Plan

LOW
State of North Carolina
Department of Environment and Natural Resources
Division of Water Resources Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b),.0259 (8)(b), .0267 (11)(c),.0607 (e)(2) - Buffer Authorization
FORM: BA 10-2013
Riparian Buffer Authorization Form
A. Applicant Information
1. Project Information
Name of project:
Mingo Creek -Phase 7
-1a.
1 b.
1 c.
County:
Nearest municipality:
Wake
Town of Knightdale
1d.
Subdivision name:
Mingo Creek
1 e.
1f.
2.
2a.
Is the project located in any of North Carolina's ❑ Yes No
twenty coastal counties. If yes, answer 1f below.
Is the project located within a NC Division of Coastal ❑ Yes No
Management Area of Environmental Concern (AEC)?
Owner Information
Name on Recorded Deed: Joyner Mingo Creek, LLC
2b.
Deed Book and Page No.
Deed Bk: 016038; Deed Pg: 01549
Could not locate
_
Fred J. Smith, Jr,
394 Fleming Road
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created);
2d. Responsible Party
(for Corporations):
2e. Street address:
2f.
City, state, zip:
Youngsville, NC 27596
919-422-4092
A N/A
2g. Telephone no_:
2h. Fax no.:
2i.
3.
Email address' DA_j2rred.§ llk ,t2fllp0rlV,ODm
Applicant Information (if different from owner)
3a. Applicant is:
❑ Agent Other, specify: Owner
3b.
Name:
3c:
Business name
(if applicable):
3d.
Street address:
3e.
City, state, zip:
3f.
Telephone no.:
3g.
Fax no.:
3h.
4.
Email address: N/A
Agent/Consultant Information (if applicable)
4a.
Name:
Deborah E. Shirley
4b.
Business name
(if applicable):
Soil & Environmental Consultants, PA
4c,
Street address:
8412 Falls of Neuse Road, Suite 104
4d.
City, state, zip:
Raleigh, NC 27615
4e.
Telephone no.:
919-846-5900
4f.
Fax no.:
919-846-9467
4g.
Email address:
dshlrley sandecmmm
FORM: BA 10-2013 Page 1 of 6

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): —1 1743571925
1b. Site coordinates (in decimal dec
1 c. Property size:
2. Surface Waters
2a. Name of nearest bodv of water to
Latitude: 35.7769 Longitude. -78.5117
t 8.9 acres
sed project: I UT to Mingo Creek
2b. Water Quality Classification of nearest receiving water: I C; NSW; 27-32
2c. River basin: I Neuse River Basin
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application: Existing conditions consist of forested land containing mixed timber. The property is bounded by
buffered streams on the north, west and south, and Hwy 540 to the east. The general land use in the vicinity of
the project is residential.
3b. Attach an 8 Y x 11 excerpt from the most recent version of the USGS topographic map indicating the location of
the site
3c. Attach an 8'/ x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site
3d. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
Approximately 1,300 linear feet
3e. Explain the purpose of the proposed project
The purpose of the project is to construct a residential development and provide access and infrastructure.
3f. Describe the overall project in detail, including the type of equipment to be used:
The overall project consists of the construction of an open bottom culvert, roadway infrastructure, utilities,
multi -family lots and stormwater BMP's. Specifically, there are riparian buffer impacts, associated with a
open bottom stream crossing and stormwater bypass installation. Equipment typically used for construction
and earthwork such as backhoes, bulldozers, excavators, graders, pavers etc. will be utilized for this project.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property/
project (including all prior phases) in the past?
4b. If yes, who delineated the jurisdictional areas?
Name (if known): A JD request package was submitted by
Steven Ball on July 09, 2015
0 Yes ❑ No ❑ Unknown
Comments:
z Agency/ Consultant Company: Soil &
Environmental Consultants, PA
Other:
4c. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
USACE- Dave Shaeffer with the Corps verified jurisdictional areas on July 20, 15 (SAW -2015-01551);
NCDWR- Sara Knies with the NCDWR conducted a Neuse Buffer determination on June 24, 2015, see attached
letter (NBRRO#15-278).
5. Project History
5a. Have permits or certifications been requested or obtained for this ❑ Yes ONO ❑ Unknown.
project (including all prior phases) in the past?
5b. If yes, explain and detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project?
6b. If yes, explain.
❑ Yes M No
FORM: BA 10-2013 Page 2 of 6

C. Proposed Impacts Inventory
1. Buffer Impacts
1a. Project is in which protected basin?
® Neuse
❑ Tar -Pamlico ❑ Catawba
❑ Randleman
❑ Jordan ❑ Goose Creek
1 b. Individually list all buffer impacts below.
If any impacts require
mitigation, then you MUST fill out Section D of this
form.
Buffer impact
Reason for
Type of impact
Stream name Buffer I Zone 1
Zone 2
number —
impact
(exempt, allowable,
mitigation impact
impact
Permanent (P)
allowable w/ mitigation)
required? (sq ft)
(sq ft)
or Temporary (T)
-- —
I
B1 ®P ❑ T I
Road Crossing
Allowable
UT to Mingo (]Yes, M No 7,330
4,565
Creek L.
—
B2 ® P❑ T
Stormwater
Allowable
UT to Mingo ❑ Yes ® No 963
425
Bypass
Creek
B3 F� P❑ T
Storm Drainage-
Allowable
UT to Mingo ❑ Yes 2 No 0
870
west side
Creek
B4 Ll P7 TLlYes
El No
B5 ❑ PEIT
❑ Yes ❑ No
i
Total buffer impacts 8,293
5,860
1c. Comments: Grading and re -vegetation within Zone 2 is exempt, therefore we did not include within the impact
table. These areas have been identified and quantified and shown on the Environmental Impact Map.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Project is utilizing and open bottom culvert to avoid stream impacts and minimize riparian buffer impacts. The
crossing was designed at a perpendicular angle and the amount of fill needed has been reduced to a minimum to
provide only necessary cover. Impacts to the riparian buffer for the outlet pipe of the stormwater constructed
wetlands has been aligned and designed to minimize impact to the riparian buffer and avoid impacts to the
receiving stream. Impacts to streams have been avoided throughout the project site.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Standard E&SC measures such as silt fence, silt fence with outlet & stormdrain inlet protection will be utilized.
FORM: BA 10-2013 Page 3 of 6

C. Impact Justification and Mitigation, continued
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
❑ Yes F7 No
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet) (square feet)
Zone 1
Zone 2
Total buffer mi
2c. If buffer mitigation is required, is payment to a El Yes
mitigation bank or NC EEP proposed?
2d. If yes, attach the acceptance letter from the mitigation bank or NC EEP.
2e. If no, then discuss what type of mitigation is proposed.
2f. Comments:
3 (2 for Catawba)
1.5
ation required
❑ No
0
FORM: SSGP3080 8-13 Page 4 of 6

E Diffuse Flow Plan
All buffer impacts and high ground impacts require diffuse flow or other form of ❑ Diffuse flow
stormwater treatment. Include a plan that fully documents how diffuse flow will be ® Other BMP
maintained. If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
Manual and attach a BMP Supplement Form.
Per the project engineer: There are only 2 stormwater outlets. One is from the storm
drainage outlet on Howdenshire Court which discharges to an NCDOT rip rap scour hole
for diffuse flow. The other is a stormwater "bypass" from a stormwater treatment device.
Similar to a level spreader, the treatment volume ("first flush") is not directly discharged to
the stream at this treatment device. The treatment volume is treated twice actually (first
in the dry pond; and next in the bioretention basin). All of the treatment volume is
infiltrated at the bioretention basin with no direct discharge to the stream. Only the larger
storm "bypass" flows are taken directly to the stream.
The proposed device will be reviewed and approved by the Town of Knightdale, a
delegated municipality with the authority to review and approve stormwater plans and
devices within their jurisdiction. The applicant requests that a conditional Riparian Buffer
Authorization be considered, allowing the applicant to provide the final Stormwater
Management Plan Approval once authorized by the Town of Knightdale.
F. Supplementary Information
1. Environmental Documentation
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the use of ❑ Yes [] No
public (federal/state) land? -
1 b. If you answered "yes" to the above, does the project require preparation of an ❑ Yes E] No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act (NEPA/SEPA)?
1 •v. If you answered "yes" to the above, has the document been finalized by the State ❑ 'Y':;s ❑ No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
2. Violations
2a. Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland I ❑ Yes ® No
Rules (15A NCAC 02H.1300), DWR Surface Water or Wetland Standards, or Riparian
Buffer Rules (15A NCAC 02B .0200)?
f 2b. Is this an after -the -fact permit application? i l�� ye, No
.,f. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
April 11,
Deborah E. Shirley 2017
Applicant/Agent's Printed Name Applicant/Agent's Signature' Date
(Agent's signature is valid only if an authorization letter from the appli nt iSip
p ovided.)
Send this completed form and accompanying documents to the following:
For government transportation projects sent
by First Class Nlail via the US Postal Service
OR - For government transportation projects sent
by delivery service (UPS, FedEx, etc.):
FORM: BA 10-2013 Page 5 of 6

NC DWR, Transportation Permitting Unit
NC DWR, Transportation Permitting Unit
1650 Mail Service Center
512 N. Salisbury Street
Raleigh, NC 27699 - 1650
Raleigh, NC 27604
For all other projects sent by First Class Mail
For all other projects sent by delivery service
via the US Postal Service
(UPS, FedEx, etc):
Karen Higgins
0 k, Karen Higgins
NCDWR — 401 & Buffer Permitting Unit
NCDWR — 401 & Buffer Permitting Unit
1650 Mail Service Center
512 N. Salisbury Street
Raleigh, NC 27699 - 1650
Raleigh, NC 27604
FORM: SSGP3080 8-13 Page 6 of 6

Environmental Consultants,
8=412 Falls of Neuse Road, Suite 104, Raleigh, NC 27615 • Phone: [phone] • Fax: [phone]
smidec.com
PROPERTY OWNER CERTIFICATION / AGENT AUTHORIZATION
Project Name/Description: M nao Creek -Phase 7 S&EC Project # 1660
Date;
The Department of tate Army
U.S, lArrny Corps of Engineers, Wilmington District
69 Darlington Avenue
Wilmington, NC 28403
Attn: Tashaj819"Doer Field Office: Raleigh Regulatory Field Office
1, the undersigned, a duly atlthodzed owner of r000rd of the property/properties identified herein, do
auilhorizo rop:r%entatiives of tho WillttinSton District, U.S. Army Carps of Frigincers (Corps) and Soil �
Cnviranmantal Consultants, PA (S EC) staff, as,ny agmt, to enter upon the property hereindescribed
ed
ror the purpose ofcondticlirig on-site lrivestigatiorr5 and issuing a deterininallon associated with Wate3•s of
the U.S. subject to Federal jurisdiction toidel- Section 404 of lhQ Clenn Water Act and/or Section 10 of the
Rivers and ffi-Irbors Act of 1899. This d=111"ent also authorizes S&K, ns my agent, to w on rr7y behalf
and tale all actions necessary for the processing, issuance and acceptance of permit or certification and
any and all associated standard and special conditions. This notification supersedes any previous
correspondence concerning the agent for this project,
NOTICE: This authorization, for liability and professional courtesy reasolrs, is valid only for government
officials to enter the property when accompanied by S&EC staff You should call WC to arrange a site
meeting prior to visiting the site.
E:>CiJI 1NF0
Parcel Index Ntlmber(s) (PIN): 170571925-
Site
1743571925Site Address: 0 r iowdenshire Rei?
City, County, State: Kniahldale, Q_
PROVET,TY OWNER INFORMATEC_ N.
Nance: Joyner Mingo Creek. LLC _
Mailing Address: 394 Fleming Road, Younasville. NC 27596
Telephone Number:
Email:
Property Owner (please prin) Dat
Property Owner
We hereby certify the above information submitted In this application is true and accurate to
the best of our know/edge,

;� �i'f
i „i ti
��� .i � 111. r � ,� �' i /.R - j r f F y,;'+`�,,4tL'��� #�p+l,�+� r'� `�`�++ •-. � P
J,• d
5 i►i a �, ^y� . I� �� ��,�- �' n f- �- a �. a v �'
11
1. ��
.r
..
u
Now—
rA
Ilk
AMP
_ d4f
«
". .;
Y - - t
� l L
n
"
� a 4
I

Ian
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
June 24, 2015
MC Developers
400 Riverwood Drive
Clayton, NC 27527
Donald R. van der Vaart
Secretary
Subject; Buffer Determination
NBRR©# 15-278
Wake County
Determination Type:
Buffer Coil
Isolated or EIR Can
0 N¢use 05A NCAC 26 0233)
Starts@
Tor -Pamlico (1l A NCAC 28,0259)
0 Ephemeral/Intermittent/ferlenniat Determinstlon
Uses
Iscltltked Wetland Determination
Jordan 0 M NCAG 29 ,0267)
To
Project Nome; oinzo Creek (end ofHowdensire Run. RrLlely h)
Location/Directiono., Subject property Is a privately owned lot located pt project address;
Subject Stream; UT to 0 Crock
Determination Date; June 24, 2015 Staff: Sam Knies
Feature
Not
Subject
E/I/F*
Starts@
Stops"'
Soil
Uses
/Flag
Subject
To
Survey
Topo
To
Buffers
Bu trers
A
IR
P
Throughout
Throughout
X
X
Ct
77
P
Throughout
Confluence %v.?
Feature A
C
i� _.
E
X
Throughout
Confluence w/
X
X
I
Feature A
*E/I'P - Ephemeral.'intennittent/Perennial
Explanation: The feature(s) listed above has or have been located on the Soil Survey of Wake County, North
Carolina or the most recent copy of the USGS Topographic map at a 1:24,000 scale. Each feature that is checked
"Not Subject" has been determined not to be a stream or is not present on the property. features that arrecked
1�'o�tilCttrttlirla
��r.I,xrr�llrf
,....., ..—Y
North Carolina Division of Water Resources 1628 Mai' Service Center Raleigh, NC 27699-1628 Phone [phone]
Internet: www ncwateraual ty cry Location 3800 Barrett drive Raleigh, NC 27609 Fax [phone]
An Equal Oppanuri ty,Afiirmative Action Emplayer – 50% Recycled110% Post Consumer Paper

-Min to Creek
Wake County
June 24,2d15
Page 2
..Subject" have been located on the property and possess characteristics that qualify it to be a stream. There may be
other streams located on your property that do not show up on the maps referenced above but, still may be
considered jurisdictional according to the 'VS Army Corps of Engineers and/or to the Division of Water Resources
(DWR).
This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected parties that
dispute a determination made by the DWR or Delegated Local Authority may request a determination by the
Director. An appeal request must be made within sixty (60) days of date or this letter or from the date the affected
party (including downstream and/or adjacent owners) is notified of this letter. A request for a determination by the
Director shall be referred to the Director in writing c10 Karen Higgins, Karen Higgins, DWR o 401 & Buffer
Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617.
This determination is final and binding unless, as detailed above, you ask for a hearing or appeal within sixty (60)
days.
The ownerifuture owners should notify the Division of Water Resources (including any other Local, State, and
Federal Agencies) of this decision concerning any future correspondences regarding the subject property (stated
above). This project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be
directed to the Division of Nater Resources (Central Office) at (919)-807-6300, and the US Army Corp of Engineers
(Raleigh Regulatory Field Office) at (919)-554-4884.
If you have questions regarding this determination, please feel free to contact Sara Knies at (919) 7914258
R6 PC fully,
Danny Smith, Sup-crvisor
Water Quality Section
Raleigh Regional Office
4c: RRO,'SWP File Copy

C
EC

{
I d r
Or
Ir
'r
VO
'f r � �l`�i '� 't4 •
4 4 ;Vi 4 f 4p
FI
VININ DG
16,
l+.l
Project Number: 1660.W2 Map Title: 1_
500 1,000
Project Manager; Figure 1 - USGS Map l '_ _1 —i I i t -L,—
SB
SB Mingo creek sec, 7 Feet
Scale; 1 500' Wyke County, NC
"=
` So31 & Environmental Consultants, PA
Date: Source= Wake County GIS
5121/15 USGS Raleigh east quad

q7=1� 1IL-0—M-An-lopm. - F
Cill S,eJVlSC2T1,-l( LILF MIT
25"
j Ot :15
Is"
-Tl
CIO, -
OL
w7

TEST BORING RECORD
DEPTH DESCRIPTION ELEVATION P(I OW ON
kr 22,
0.0-
0.2 t- Topsoil - � ISS
IAlluvium -Very Loose Black Silt�ey Fine to
I Medium SAND a
2.5
Medium Ucnsc to Very Dense Gray Sli8
Micaceous Silty Fine to Mcdiunt SANT)
Partially Weathcrcd hack - Sampled os Tan
Sliglitly Micaccous Silty Fine to Meditun SAND
6,5
11.0
12.1
4
16,5
Ati�cr Rcfltaal at 16.5`
Groundwater encountered at Yat time of boring.
21',
n
�v
BLOWS PER
SIX INCHES
JOB NUMBER 1 -16 -0960 -EA,..:- ..
BORING NUMBER B- 1
DATE
11-]7-16
3200 Wellington Court, Ste 108
PAGE 1 OF 1 Raleigh, NC 27615

TEST BORING RECORD
DEPTH DESCRIPTION ELEVATION PENETRATION BLOWS PER
(FT.) (FT.) (BLOWS/FT.) SIX INCHES
0,0 _ _ 226.00 10 20 90 60 100
03 Topsoil SC
Alluvium - Very Loose Slack Silty Clayey Fine to ,
1 S
Medium SAND w/Roots
Alluvitun - Very Loose Slack dray Clayey Silty SNI - 2-2-3
-inc to Medium SANT)
3.0
o' sc Qranue Silty Fine to Medium SAW KM 11
6.5
Stl/0„
13,0
So7r Pwinliy cothered Rook Sampled as Oray 4
Slightly Mlcac ous Clayey Silly Fine to Moaium .A
SAND 'q
.A
4 2.11 n
15.5
flarder Partially Weathered Rock - Alot .I,ampled
Auv Refwsal at 16.5'
Groundwater encountered at 13' and caved at 14' at time of Loring.
JOB NUMBER I -16 -0960 -EA
BORING NUMBER B- 2
DATE 11-17-16
PAGE I OF I
t r
za�' 1
to s
3200 Wellington Court, Ste 108
Raleigh, NO 27615

DEPTH
(FT,)
0'0
0.2
1.0
3.s
7.e
8.0
91.3
TEST BORING RECORD
DESCRIPTION ELEVATION PENETRATION
(FT.) (BLOWS/FT.)
BLOWS PER
SIX INCHES
Groundwater encountered at 7,2 at time of boring,
JOB NUMBER
BORING NUMBER
DATE
PAGE 1 OF I
1 -16 -0960 -EA
B- 3
11-17-16GieoTe(hnologies. Inc
3200 Wellington Court, Ste 108
Raleigh, NC 27615

TEST BORING RECORD
I— ice,
DEPTH DESCRIPTION ELEVATION PENETRATION
(FT') (FT.) (BLOWS/FT.)
nn
1.3.2
BLOWS PER
SIX INCHES
vt�IµFty YYt{4Vl lkk, ,WILU«u ILL I 1 a urne or ooring.
JOB NUMBER
BORING NUMBER
DATE
PAGE 1 OF I
1- 16 -0960 -EA
B-4
11-17-16
GeoTe(hnofogies, Inc.
3200 Wellington Court, Ste 108
Raleigh, NC 27615

TEST BORING RECORD p
J
DEPTH DESCRIPTION ELEVATION PENETRATION BLOWS PER
(FT.) (FT.) (BLOWS/Fr.) SIX INCHES
3C
64
m
Dry at time of boring.
JOB NUMBER 1 -16 -0960 -EA
BORING NUMBER B-17__'
DATE 11-18-16
PAGE 1 OF 1 3200 Wellington Court, Ste 108
Raleigh, NC 27615

DEPTH
(FT.)
0.0 _
0,2 To soil Sm
1.0 Possible Fill - Medium Dcnsc Tan Silty Fine
SND
TEST BORING RECORD
DESCRIPTION EL,EVA (O j PENETRATION
SIX BLOWS INCHES
3.0
A SC
Mcdium Dense Tan Silty Clayey Fine to Medium
SANT?
N k4litim Dense to Aenac Tan Sli Ealy Micaceous hef
Silty pine to Medium SAND
Vory 100seous Sli�luly Tl y S
Fine t9 Wdium SANG
f3ttrur�t tcrniinatcd at t`
Dry at time of boring.
JOB NUN(BER
BORING NUMBER
DA'Z'E
PAGE 1 OF I
en
7-10-10
10-18,2A
44=4349
1 -16 -0960 -EA
B-26 ,,;;
11-18-16
> t+
W
% 3200 Wellington Court, Ste 108
Raleigh, NC 27615

2/19/2017 9. Soil Permeability
Permeability variation according to soil texture
Usually, the finer the soil texture, the slower the permeability, as shown below:
Soll Texture
Permeability
Clayey
soils
Fine
From very slow to very
rapid
Loamy
soils
Moderatel fine
Moderatelycoarse
Sand soils
Coarse
ftp://ftp.fao.orglfi/cdromlfao traininglfao traininglgeneral/x6706elx6706e09.htm 111
r
i'i
t=xample
Avera _ abiti fordifferentsoil texture..inwcm.le.ur.,.r
'�+ l��
Sand
5,4
Sand loam
Z5
p , q
Jt �*)
._
silty clay
0.25
CLaz
au
ftp://ftp.fao.orglfi/cdromlfao traininglfao traininglgeneral/x6706elx6706e09.htm 111

2/19/2017 9. Soil Permeability
9.4 Measurement of soil permeability in the laboratory
When you take an undisturbed sample to a testing laboratory, to measure permeability, a column of soil is placed
under specific conditions such as water saturation and constant head of water. The result will be given to you
either as a permeability rate (see Table 15), or as a coefficient of permeability (see Table 16).
TABLE 15 TABLE 16
Soil permeability classes for agriculture and Sail permeability classes for civic engineering
_. . .
conservation
Coefficient of
j _ .. ._.. __....��,•,.�_ � Soli permeability
Soil permeability Permeability rates,permeability (K in
classes
classes a, cm/hour pm/day _.... _ V Lower limit; Upper limit? r
Less than ermeable I p�t V .,� - ,
Very slow �' off' Less than 3 _ 2 1 Q x 1
Q.13 _ ... emi-permeable 1 x 10 7 1 x 10'5ecl-f
Slow _. vS — -� I 0.13-0.3 12 _
®_ I mpermeablex 10 1 t t' '. pQeoora F
Mpderatel flow Q �. 0.5-2.0 12 4$ _ . i ... x 1 Q'
_.._
Moderate . R7 9 2w i .2.0-6,3. 48.1 1
i Mo30511
t
12 7 - 2a 305 - 60A
P... _ ,a r� kli�f�l
ery More than rapid; Wore than 25 I'AA
1 6aturated samples under a constant water head of
1.27 cm
ftp:Hftp,rao.orglfikdrom/fao training/fao training/general/x6706dx6706eO9.htm ,,,

GRAPHIC SCALE
a o
20 w m tm
( IN FEET )
1 inch = 40 ft.
AN
NORTH
.:
\ , �
\ ,l
.~_ � � ,/ ` \'. \\ ��\ '.\ moi., � _ �. � -� �`�� �,' ✓, 1 ! i r r
sA.e
hV
" r\ � 1 e�I%!� �� i' � /r/ '�''��' '�,•'_�T"��- _�/"�/ ~_.__-____
<-=mo=w; ­7�}-.- `---
-----
-------'"_ ------
Ob
`lit
� A;� 1 I' ' i i ; ; ._.1- •- _ _ A ' \� ,�2 V • :� ., v `v v` `` v` '' , A `v� ;?.l
i
-Wk
1 t
\
�'
� 1 \ � :, 1 1, } ,. 1, ', ,, `, '\ \ \ ' ., \ `\ i i i w - _ _ _ _• _ • � _''' / 1 r
---------------
SAM.
----- ------ SAN ip. ✓ � ./ I Vt
EA J Jl % ` /._%, Yk': / 1 •i _ (.. i � ,� ,\ \, \\ \`` ``'it` 'l' ; 'i i } �,t `, `',t \ \,\ � i ```` ` ` \ \ \ y . ' / 1 % ' ,1 \
41,
jI ` \\``� � \ /�: -� �� `'t � � i ' j I i` i i i `'• f rr r � i ! i i }`, `t, t\, `', ,``, ', ,� r! � �" l ^`'" i ` ' . { '1
+1 \ I ;t 4 +' {�//%4`�/ ' / ,\, ^•-.�i ,l 1'/ � ' f t t ! 1 ,+ ,I '' I '' i ; 'I � +\, `'l \ ',`, ``, `,\ `\'', ``'\l `'\ ,} `\`\ ^..' , i /—' `—__—_— ,,/
\ \� \\�\,` ,, '. �f g` `X , ,}` } ` 1, , `+` it ` '1t •1+ i e' '\ \t \ ,, \ \` .`t \` ``5\ \ _ ' „_r ,\ "^�^`` A
O
04
Q4
-lUa:'4
UZc�U
,M, b
W
M
13 U
0 a
IED
Z
dIr
W
Nz
Q W
a
a
nT0
W
w�
jQ
L
U
ti
Co
W
DESIGN
DCA
DRAWN
ADS/BRL
CHECKED
DCA
HORIZONTAL SCALE
SFE CROW SUIT
VERTICAL SCALE
NA
DATE
318117
JOB NO.
AH -
SHEET
EX -1

w o au GRAPHIC SCALE 90 so ENVIRONMENTAL IMPACTS(WETLANDS,STREAMS&RIPARIANBUFFERS) ENWRONMENTALIMPACTS-LEGEND
TYPE OF B (PACT TOTAL IMPACT MEASURED
WETLANDIMPACTS 0 SQ.FT. ROAD CROSSING - BUFFER ZONE 1 IMPACT 60' PUBLIC R/ V
(
IN FEET
1 inch = 40 ft. ROADWAYSTREAMCROSSINGIMPACT OL.F.
C Iinrt
(OPEN BOTTOM CULVERT CROSSING)
ROAD CROSSING -BUFFER ZOAB 2IMI'ACT
oil
\ gip.:'' o:,-�
IMPACT AREA #1 STREAMI'CROSSING ( \ \ EXEMPT GRADING IN - /�- �'' '
c J=-•
ROAD CROSSING NO IMPACT WITH OPEN \ \ \ \ _ _ _ _ _ - ti n
.1` `, BUFFER ZONE 2`" - ��',o.'' n'''� >' / '' 50' PRIVATE R/V
BOTTOM CUL
ART , \ty;�i `\ ` \ \`� \ _ � /'/ f/�'� '//'' /�' � 6 PUBLIC UTILITY EASEMENT
AREA =\3 9D S .FT' '`` _ G3AbINC C TRUCTION ,
\� , � ' _ - L1, sS1•�•/T1'P-�';''�,-�
r r .*11 'V• ` \ \`�\ \T BE \EDlA7ELYRfVFGETA _ _ 'NFA.. I / -•'? `b'./'� •/ /)''�/ Y O
ARCH sp,N��iC�_._----_-.-'' cIL11,00,
ROADWAY CR OSSIN _
Ah60 SiRtTPR ;s�
IN BUFFERZONE 1 oRtldAGE s sreM TYP � J\ \ �'� \`� -11M
- - -
IMPACT = 7330 SQ. FT b ` Tip LDGs(4B - -- -oe% - z.os% 4
SE STREET CAN ROFlCES� /�B"B -
/P , . 2.08%
--23L- SIDEVALK
_}_./ - ,� _ - - -'--' / r'i /,/' i i' / • r � i i A SIDEWALK
TOTAL BOTH SIDES -� \ --__ _ - - - _ - .. - i' r
(INCLUDES FlLL OVER CULVERT , - _. `� - - �.) �`, , % t i r \ /
BUT OUTSIDE TOP OF BANK) / /. '..' \ \`\ y_. _ \� \ ` \l, -_ �.� ;\` ; t i'' /' r VALLEYL VCURBY
/- ``_ ` `/i' j CURB
+t '+, �! t i 2' S 8' C ASPHALT NIX
, .\ \ -- : � � ! `� , 'y, ' , • � OVER 8' COMPACTED ABC STONE
_ i
i- is 4y
_ _ COMPACTED SUBGRADE
- OVER COMP C ED
r- -ter
- + *� 0 E
SIN - • ;\y � ,
A A • ��7r �'•,
E \ \
!N BUFFER ZONE 2
IMPACT 4,565 SR -FL_ ��;;� i' % __ - - - _ /.\1 `, ', , `, ( ; ', \ '\ TYPICAL STREET SECTION #2
TOTAL B07H SIDES 7 f(/� i =''-'' `\ \ \\ \ t\ \ \ tt`, \ \ `\ \ `t \ \ `,\ ' \\ '\ 4\ �, SCALE, V = 10'
t END 6 PUBLIC STREET R W� r- - `
' TR/W & P LI 504 BRIVA7'E , E ,
' ^" •_- 1 � '_Y --�. _ _ t i i ' + `i ,'\ \ \`\ `', \ S `\ `\ \ "j 1. NOt'6: COMPACT AND TEST SUBGRADE. STONE BASE k ASPHALT
R - II & PUBLIC SEAIENT /' �. ` t t 'r I ` \�, \ ` \ L\ \
1 i ` \\ \ , ` \ }\ PER RB OT &STANDAR S
� ` 1� \ J I \`t B. CfBD3 d: GUTTER OVER COMPACTED SUBGRADE
GRADING CONSTRUCTION , I - _, I % �' S. SIDEWALK OVER COMPACTEDSUBGRADE
: I ' I � _ _ _ _ '/..'.,J- _ `,\�`�\` t, \ ,\ t \ \\ t '\ 4. COMPACT ALL OTHER CUT FIL AREAS PER NCDOT
LIMITS TYP / \ 1; ?i ' j�f; ; ' ` \`• , `, t `` \` \ \ \ STANDARDS
EXIST STORM ` \ \`F 10' MIN
�: ` • !. r i j % ' - _'-_ 4 - \� �\`i `\ , \ \ \ t \ 1. ' SIDE BLDG. 175' TYP
ORAINA,CE STRUCTURE TO -_ ' _ / . /_`�``� \ , , , \ `, •i ` , 't t
NEW'. CATCH BASIN AND I y, - ,.I , / / r / - _ _� �.-r"':`:\•�., \\ `\�� ,\ , t\ t `, \ 1, \
,.y `: EXTEND NEW STORK , -A ' � ` ` t ` ` ` ` ' '` \ SETBACK/SEPARATION
` � / 'PAD-- - PA ' "PAS ' P�'D, '' PAD'.. 'PAD ` y RAO'. _FAD -----^-'-=` �. ` ' ` `\ �\ \ , \ ,\ �\ , `\ ``,` , t � J
, ORAIN�IGF`AS INDICATED ' 245.5 246.5 247 5 2x8.5�~ ` �\ ` , `\ ` `-1 Eli
, MIN COMPACTED
\ y ii ,• t`• ._-. __ �` \� \ ` \ ```\\`` , `t ``` ``, ` ,`` PAD GRADED ELEV.
;n -1 O;-'--'-----`_``� �j - t \ ` • ` IDENTIFIED WETLAND a SEE ALSO
,NO \1,'\ACT"` \ \ GRADING PLAN)
4t i r _ -., - ` _ T}P STREET SECTION ;{'2 `` \ I` �` •.`
` `\ ' <' \ �� / 258.0 259.0 260.0 261.0 261.0 261.5 262.0 262.5 F
.. �'PR(VATE STREET R �`, `\ �• \ \
•`, 1% , ,►�] ', _ '�^ 6'6 i 5{' E 'TYAICIU- SECIlON •THIS SlfEE1\\` ``\
Y-�ST-S7_=
�,! .._.--�-� ,�-`/• Epp FI(?7 B'A1L3!,,.3,- _Yn _ _ \ � ' 4, � 4+47P VL 6••VL 6'•vL 6 '-` \.\ �`` �`.`, Vim:` BLDG. SETBACK
IN
o m
'--"__ 7� 7C 4y, __ N ` fpST'SAN R .1Y' ` .� Y `♦ \ \ \ ��TtS
1-_
iTGW�LCRO.W,.;1..1.��,-._...-_-'--_"`._.--_
.- t i.-__+--_-.._.._ 1..-'_-` 1 "'i _ _ \ ``\ •\1 �5 ) /P� IsII Q'� ; // _-_-� \• ^ -__ �L�t i1 I \``` - •�1D l *�`\
I``------- C/L
STREET EXTENSION AT SEE TYPICAL SSTREC17ON TN/S SHEET S I,, /i,,//' r /- ,, \ ...i. I
rY / I PAD PAD PAD. i PAT R/Ir
BEGIN PROPOSED D
END of Exrsl srREET 1 I 2 I -
CITY OF RALEIGH SQ.O
6 -INCH WATERLINE \ j \� ..\ \ PAD 'PAb 1 P,AD PAD I
EXTENSION (TYP) \ �_,. zass zas.o �2afis z4;zo
IMPACT AREA 13 �
SEE UTIL/TY PLAN � SO• � \ ', `, �' ORA/NACE ' � `` � �_ _ _ � ' _ i' / ,' r; ,\
STORM DRAINAGE !Nx smEEr ILANIPRORLES
BUFFER ZONE 2 \ s Is4iE�
-~\ \
870 SF 8 - NCH SEWERLfNE %� i I\. \ (`.\ `\ '--`---- _ '�
EXTENSION (TYP) jNL t p p`�6 7T1kNAROUND
SEE UTILITY PLAN ` ( I I ,`\ •t ,t '\ PAQ?%62\ `\ •` ` i ,
IMPACT AREA #2 'kSTREETPLAN/PROFILES I� I I wq c. --- pPflp10
STORMWATER BYPASS
1
STORNMAPER OUTLET ' EASE
RAP SCOUR XO
pap
EMT GRAD I r�-''
BUFFER ZONE 2
AREA = 1 520 S .FT
TO BE IMMEDIATELY REVEGErATED 1` \ \. \` ` ' d$ "�' ` -- ' / ,�• 6 ' \ I ' Y' ' , ' \
GRADING EXCAVATION
STORMWATER BYPASS IN
BUFFER ZONE
IMPACT = 963 S
Rff RAP DlSSlPATOR AT BYPASS PIPE fes, �\ 1. a'o , C �` ' ,.'A(•pPP' 2635 2 - \
OUTLET WITH DITCH TO STREAK \ `\ ` \ \�"!' 'YV2Z.A
(STORMINTER OVERFLOW/BYPASS
AFTER TREATMENT
I .o ` '�\ pD•D 262 � � r / `.
GRADING EXCAVATION
STORMWATER BYPASS !N
BUFFER ZONE 2
IMPACT = 425 S .FT.2 s°
MEASURE - SCKJ'I � `' •', '` .Si? •4'p \7P� 254• .2 \ -' �� „'•"'• - _ `` /
i\2p'�
SEE STORM POND DETAIL '1 \ t ` ` i S7 25 't `\---------
53.6
_ - ��- --/
\ , O
r
253b. � 940
EXEMPT" !NC \` 2ss.o z
y,
BUFFER ZONE 2 MEASURE - SCU R
AREA = 3870 S .FT
TO BE IMMEDIATELY REvfGETATEO SEE STORM POND GENII,
ZZ i IDENTIFIED WETLAND ,±, �_' - - ./� `
�\\'` �� _ __ �--� ' \ `. [:,,�.-•�
FBIORETENTION
NO IMPACr GRADING CO STRUGTIO
FUNCTION/NG PORTION OF BASIN IS OUTSIDE p �,i, Ii
OF BUFFER OR METLANDS LIMITS TYI' +`\ ` 'y�.
REMAINING CONSTRUCTION IS EXEMPT ttt'\� Y ,` t, 1 +�,_ i ``,
CRAGING/REVEGETATION IN ZONE 2 \`t`.' . �: '. \ 5
ROADWA YCROSSING IN BUFFER ZONE I
7,330SQ.FT.
1. KNICGHNTDADALG SETBACKS PER
LE UDO E.7.B.3.
BUILDING & SETBACKS
R PAD GRADING/LUMPACITON PER
BLDG./STRUCTURAL SPEC97CATTONS
-
4.17%
-
2.08%
_
-
-
-
-
ROADWAY CROSSING IN BUFFER ZONE 2
STORM DRAINAGE IN BUFFER ZONE 2
4,565 SQ. FT.
870SQ.FT.
STORMWATER BYPASS - BUFFER ZONE I EWPACT
4. 7/,
2.08% 2.08% SIDEVALK
SIDEWALK
2.5' CURB 2' SF -9.5A ASPHALT MIX 2.5' CURB
s GUTTER OVER 8' COMPACTED ABC STONE L GUTTER
OVER COMPACTED SUBGRADE
GRADING/EXCAV. FOR STORMWA TER BYPASS INZONE 1
963 SQ.FT.
ay
ORA DINGiEXCAV. FOR STORMWA TER BYPASS IN ZONE 2
425 SQ. FT
®STORMWATER
BYPASS - BUFFER ZONE 2 IMPACT
o TYPICAL STREET SECTION #1
GRADING/REVEGETA TION INBUFFER ZONE 2(EXEMPT)
8,880 SQ.FT.
SCALE V = 10'
NORTH
1. COMPACT AND TEST SUBGRADE. STONE BASE 8 ASPHALT
STANDARDS
2. CURB a GUTTER OVER COMPACTED SUBGRADE
2.CU
PER MCDOSIDEWALK
®
GRADING/VEGETATIONINBUFFER ZONE2 (EXEMPT)
3. SmEVA1X OVER COMPACTED SUBGRADE
4. COMPACT ALL OTHER CUT/FHT AREAS PER NCDOT
STANDARDS
oil
\ gip.:'' o:,-�
IMPACT AREA #1 STREAMI'CROSSING ( \ \ EXEMPT GRADING IN - /�- �'' '
c J=-•
ROAD CROSSING NO IMPACT WITH OPEN \ \ \ \ _ _ _ _ _ - ti n
.1` `, BUFFER ZONE 2`" - ��',o.'' n'''� >' / '' 50' PRIVATE R/V
BOTTOM CUL
ART , \ty;�i `\ ` \ \`� \ _ � /'/ f/�'� '//'' /�' � 6 PUBLIC UTILITY EASEMENT
AREA =\3 9D S .FT' '`` _ G3AbINC C TRUCTION ,
\� , � ' _ - L1, sS1•�•/T1'P-�';''�,-�
r r .*11 'V• ` \ \`�\ \T BE \EDlA7ELYRfVFGETA _ _ 'NFA.. I / -•'? `b'./'� •/ /)''�/ Y O
ARCH sp,N��iC�_._----_-.-'' cIL11,00,
ROADWAY CR OSSIN _
Ah60 SiRtTPR ;s�
IN BUFFERZONE 1 oRtldAGE s sreM TYP � J\ \ �'� \`� -11M
- - -
IMPACT = 7330 SQ. FT b ` Tip LDGs(4B - -- -oe% - z.os% 4
SE STREET CAN ROFlCES� /�B"B -
/P , . 2.08%
--23L- SIDEVALK
_}_./ - ,� _ - - -'--' / r'i /,/' i i' / • r � i i A SIDEWALK
TOTAL BOTH SIDES -� \ --__ _ - - - _ - .. - i' r
(INCLUDES FlLL OVER CULVERT , - _. `� - - �.) �`, , % t i r \ /
BUT OUTSIDE TOP OF BANK) / /. '..' \ \`\ y_. _ \� \ ` \l, -_ �.� ;\` ; t i'' /' r VALLEYL VCURBY
/- ``_ ` `/i' j CURB
+t '+, �! t i 2' S 8' C ASPHALT NIX
, .\ \ -- : � � ! `� , 'y, ' , • � OVER 8' COMPACTED ABC STONE
_ i
i- is 4y
_ _ COMPACTED SUBGRADE
- OVER COMP C ED
r- -ter
- + *� 0 E
SIN - • ;\y � ,
A A • ��7r �'•,
E \ \
!N BUFFER ZONE 2
IMPACT 4,565 SR -FL_ ��;;� i' % __ - - - _ /.\1 `, ', , `, ( ; ', \ '\ TYPICAL STREET SECTION #2
TOTAL B07H SIDES 7 f(/� i =''-'' `\ \ \\ \ t\ \ \ tt`, \ \ `\ \ `t \ \ `,\ ' \\ '\ 4\ �, SCALE, V = 10'
t END 6 PUBLIC STREET R W� r- - `
' TR/W & P LI 504 BRIVA7'E , E ,
' ^" •_- 1 � '_Y --�. _ _ t i i ' + `i ,'\ \ \`\ `', \ S `\ `\ \ "j 1. NOt'6: COMPACT AND TEST SUBGRADE. STONE BASE k ASPHALT
R - II & PUBLIC SEAIENT /' �. ` t t 'r I ` \�, \ ` \ L\ \
1 i ` \\ \ , ` \ }\ PER RB OT &STANDAR S
� ` 1� \ J I \`t B. CfBD3 d: GUTTER OVER COMPACTED SUBGRADE
GRADING CONSTRUCTION , I - _, I % �' S. SIDEWALK OVER COMPACTEDSUBGRADE
: I ' I � _ _ _ _ '/..'.,J- _ `,\�`�\` t, \ ,\ t \ \\ t '\ 4. COMPACT ALL OTHER CUT FIL AREAS PER NCDOT
LIMITS TYP / \ 1; ?i ' j�f; ; ' ` \`• , `, t `` \` \ \ \ STANDARDS
EXIST STORM ` \ \`F 10' MIN
�: ` • !. r i j % ' - _'-_ 4 - \� �\`i `\ , \ \ \ t \ 1. ' SIDE BLDG. 175' TYP
ORAINA,CE STRUCTURE TO -_ ' _ / . /_`�``� \ , , , \ `, •i ` , 't t
NEW'. CATCH BASIN AND I y, - ,.I , / / r / - _ _� �.-r"':`:\•�., \\ `\�� ,\ , t\ t `, \ 1, \
,.y `: EXTEND NEW STORK , -A ' � ` ` t ` ` ` ` ' '` \ SETBACK/SEPARATION
` � / 'PAD-- - PA ' "PAS ' P�'D, '' PAD'.. 'PAD ` y RAO'. _FAD -----^-'-=` �. ` ' ` `\ �\ \ , \ ,\ �\ , `\ ``,` , t � J
, ORAIN�IGF`AS INDICATED ' 245.5 246.5 247 5 2x8.5�~ ` �\ ` , `\ ` `-1 Eli
, MIN COMPACTED
\ y ii ,• t`• ._-. __ �` \� \ ` \ ```\\`` , `t ``` ``, ` ,`` PAD GRADED ELEV.
;n -1 O;-'--'-----`_``� �j - t \ ` • ` IDENTIFIED WETLAND a SEE ALSO
,NO \1,'\ACT"` \ \ GRADING PLAN)
4t i r _ -., - ` _ T}P STREET SECTION ;{'2 `` \ I` �` •.`
` `\ ' <' \ �� / 258.0 259.0 260.0 261.0 261.0 261.5 262.0 262.5 F
.. �'PR(VATE STREET R �`, `\ �• \ \
•`, 1% , ,►�] ', _ '�^ 6'6 i 5{' E 'TYAICIU- SECIlON •THIS SlfEE1\\` ``\
Y-�ST-S7_=
�,! .._.--�-� ,�-`/• Epp FI(?7 B'A1L3!,,.3,- _Yn _ _ \ � ' 4, � 4+47P VL 6••VL 6'•vL 6 '-` \.\ �`` �`.`, Vim:` BLDG. SETBACK
IN
o m
'--"__ 7� 7C 4y, __ N ` fpST'SAN R .1Y' ` .� Y `♦ \ \ \ ��TtS
1-_
iTGW�LCRO.W,.;1..1.��,-._...-_-'--_"`._.--_
.- t i.-__+--_-.._.._ 1..-'_-` 1 "'i _ _ \ ``\ •\1 �5 ) /P� IsII Q'� ; // _-_-� \• ^ -__ �L�t i1 I \``` - •�1D l *�`\
I``------- C/L
STREET EXTENSION AT SEE TYPICAL SSTREC17ON TN/S SHEET S I,, /i,,//' r /- ,, \ ...i. I
rY / I PAD PAD PAD. i PAT R/Ir
BEGIN PROPOSED D
END of Exrsl srREET 1 I 2 I -
CITY OF RALEIGH SQ.O
6 -INCH WATERLINE \ j \� ..\ \ PAD 'PAb 1 P,AD PAD I
EXTENSION (TYP) \ �_,. zass zas.o �2afis z4;zo
IMPACT AREA 13 �
SEE UTIL/TY PLAN � SO• � \ ', `, �' ORA/NACE ' � `` � �_ _ _ � ' _ i' / ,' r; ,\
STORM DRAINAGE !Nx smEEr ILANIPRORLES
BUFFER ZONE 2 \ s Is4iE�
-~\ \
870 SF 8 - NCH SEWERLfNE %� i I\. \ (`.\ `\ '--`---- _ '�
EXTENSION (TYP) jNL t p p`�6 7T1kNAROUND
SEE UTILITY PLAN ` ( I I ,`\ •t ,t '\ PAQ?%62\ `\ •` ` i ,
IMPACT AREA #2 'kSTREETPLAN/PROFILES I� I I wq c. --- pPflp10
STORMWATER BYPASS
1
STORNMAPER OUTLET ' EASE
RAP SCOUR XO
pap
EMT GRAD I r�-''
BUFFER ZONE 2
AREA = 1 520 S .FT
TO BE IMMEDIATELY REVEGErATED 1` \ \. \` ` ' d$ "�' ` -- ' / ,�• 6 ' \ I ' Y' ' , ' \
GRADING EXCAVATION
STORMWATER BYPASS IN
BUFFER ZONE
IMPACT = 963 S
Rff RAP DlSSlPATOR AT BYPASS PIPE fes, �\ 1. a'o , C �` ' ,.'A(•pPP' 2635 2 - \
OUTLET WITH DITCH TO STREAK \ `\ ` \ \�"!' 'YV2Z.A
(STORMINTER OVERFLOW/BYPASS
AFTER TREATMENT
I .o ` '�\ pD•D 262 � � r / `.
GRADING EXCAVATION
STORMWATER BYPASS !N
BUFFER ZONE 2
IMPACT = 425 S .FT.2 s°
MEASURE - SCKJ'I � `' •', '` .Si? •4'p \7P� 254• .2 \ -' �� „'•"'• - _ `` /
i\2p'�
SEE STORM POND DETAIL '1 \ t ` ` i S7 25 't `\---------
53.6
_ - ��- --/
\ , O
r
253b. � 940
EXEMPT" !NC \` 2ss.o z
y,
BUFFER ZONE 2 MEASURE - SCU R
AREA = 3870 S .FT
TO BE IMMEDIATELY REvfGETATEO SEE STORM POND GENII,
ZZ i IDENTIFIED WETLAND ,±, �_' - - ./� `
�\\'` �� _ __ �--� ' \ `. [:,,�.-•�
FBIORETENTION
NO IMPACr GRADING CO STRUGTIO
FUNCTION/NG PORTION OF BASIN IS OUTSIDE p �,i, Ii
OF BUFFER OR METLANDS LIMITS TYI' +`\ ` 'y�.
REMAINING CONSTRUCTION IS EXEMPT ttt'\� Y ,` t, 1 +�,_ i ``,
CRAGING/REVEGETATION IN ZONE 2 \`t`.' . �: '. \ 5
� h b
U
J. q
RV�Q�
uj
M
0u
oa
Iz
14E
W
ut Z
�.i
14
0
11
JOB N0.
I
SHfST
1
NOTES:
TYPICAL 4 -UNIT TOWNHOME
1. KNICGHNTDADALG SETBACKS PER
LE UDO E.7.B.3.
BUILDING & SETBACKS
R PAD GRADING/LUMPACITON PER
BLDG./STRUCTURAL SPEC97CATTONS
SCALE: V = 40'
3. DRIVEWAYS SHALL BE
CONCRETE. PER BLDG.
SPECIFlCAT/ONS
� h b
U
J. q
RV�Q�
uj
M
0u
oa
Iz
14E
W
ut Z
�.i
14
0
11
JOB N0.
I
SHfST
1

GRAPHIC SCALE
—
0 0 1p ap 8p
CALL 48 HOURS BEFORE YOU DIG
X60
II
I
1-800-632-4949
( IN FEET )
— WATERLINE
BLOWOFF
HYDRANT
1 inch = 40 ft,
s NORTH CAROLINA ONE -CALL CENTER
ii
H
PER CHANGE IN THE NORTH CAROLINA GERNERAL STATUTES (NCGS 87-121(g)),
UNDERGROUND UTILITIES ARE TO BE LOCATED BY ELECTRONIC MEANS. SIMILAR
TO OTHER DETAILS, GRAVITY SEWER MAINS NOW REQUIRE A 112 AWG INSULATED
(GREEN) SOLID COPPER WIRE TO BE PLACED WITH THE GRAVITY SEWER MAIN.
IF THE SEWER MAIN DEPTH IS GREATER THAN 8 FEET FROM FINAL SURFACE
ELEVATION, PLACE THE WIRE AT A DEPTH BETWEEN 7 AND 8 FEET BELOW
FINAL SURFACE ELEVATION. IN PAVED AREAS, PROVIDE ACCESS TO THE TRACER
WIRE THROUGH A MINI—MANHOLE. IN AN OUTFALL CONDITION, PROVIDE ACCESS
SIMILAR TO THE WATER LINE TRACER WIRE DETAIL LOOP THE WIRE AROUND
THE STANDARD MANHOLE. SEE DETAIL ON SHEET D2
NOTE.,
1. ALL STORM STRUCTURES SHOWN ARE NCDOT STD. CATCH BASIN WITH THE
EXCEPTIONS OF SD 10 WHICH IS A NCOOT STD. DROP INLET AND SD 11 WHICH
SHALL MATCH CURB SECTION.
2. PIPE/MAIN CROSSINGS: STORMWATER OVER WATER MAIN,• MIN. 18"
CLEARANCE WITH ONE JOINT DIP WATERLINE CENTERED UNDER STORMDRAIN.
3. PIPE/MAIN CROSSINGS: STORMWATER OVER SANITARY SEWER MAIN; MIN. 24 -
CLEARANCE.
4. HORIZONTAL PIPE/MAIN SEPAR47ION; 10' MIN. CLEAR BETWEEN
WATER/SEWER OR INSTALL WATER 18. OVER SEWER IN SEPARATE TRENCH OR
USE DIP OR ENCASEMENT ON BOTH MAINS.
260
255
250
245
240
235
230
225
220
215
210
LEGEND
EXISTING
{{q -5{A
PVI ELE.246.00
PROPOSED
—v •
Dk0
— WATERLINE
BLOWOFF
HYDRANT
M�
pQ
VALVE
H
p
REDUCER
O
METER
SEWERUNE
O
O
MANHOLE
O
CLEANOUT
STORM DRAINAGE
OS
®
CATCH BASIN
LJ
DROP INLET/YARD INLET
PROPOSED
DITCH FLOw -�
--�
260
255
250
245
240
235
230
225
220
215
210
q O N eQm CY: ^MI NN Y1D �n � M1� Dm
no nn n^n Nn nn r°iie �a $v
N N N NN NN N NN NN NN NN NN NN N NN NN
-2+00 -1+50 -1+00 -0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+DO 5+50 6+00
{{q -5{A
PVI ELE.246.00
K = 0.74
--------------
_---
gom vc—
6�
—_
C, iTS73R
oa
(PP y
-SBL]
e`a
W
S26
AG EL. 236.82—
EXt EX2
PVI STA.2+248
V . .19
_
= o
K = 30.22
SD
o
71
wo
-4.198
300.00- VC
I
5.73%
\ N
v+A—F�—gym
\ -
O m
vC� �
o
mpN
N I—�
Nzo
+N
Q
I
ne'_mp
EX. GRADE
_--____
• _—__ —
_
_
pll
ptl
ptl
I
mn-o.N Nn N rnNN�
I +azo N�zo �Nzzo
Fo --- PROP. GRADE
SEE NOTE
l
--_— __ _
--
ss-A6a- - _ 9.90LF
3,
T5'�R
—
` B•
_
-- -
9
---
—
`
—
f7CP
it3T_
.. _ -
w1
11 PI (SD
4LF
1H RCP
�- -O-a-61-9B..
---_---
6
- -- 6 v1C I d $
P SS —
M
WATERLINE CONST UCTION
'ems
53.84LF pf
_ 0.82%
1`
P2(SD)
--
p3(SD5-
SEE NOTE 2 1118_
0d
— -
-
--1
--
m � I
ir?
OUT
Z
O
II II
II II
II II
N
ro
�� mc°0i "' 1.1 1J
_Oa I
�Mry
^mmn
nnN
O
v
OPEN B071MM CULVERT
H zz z o
NONE
o
-22
NKCZZ NKK -Z
>
>
UIKK-
SS7
SS2 SS3 SS4
SSS
p0
q O N eQm CY: ^MI NN Y1D �n � M1� Dm
no nn n^n Nn nn r°iie �a $v
N N N NN NN N NN NN NN NN NN NN N NN NN
-2+00 -1+50 -1+00 -0+50 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+DO 5+50 6+00

o D Q GRAPHIC SCALE bo
40 80
( 1N FEET )
1 inch = 40 ft.
0
CALL 48 HOURS BEFORE YOU DIG
1-800-632-4949.
NORTH CAROLINA ONE -CALL CENTER
PER CHANGE IN THE NORTH CAROLINA GERNERAL STATUTES (NCGS 87-121(g)),
UNDERGROUND UTILITIES ARE TO BE LOCATED BY ELECTRONIC MEANS. SIMILAR
TO OTHER DETAILS, GRAVITY SEWER MAINS NOW REQUIRE A J12 AWG INSULATED
(GREEN) SOLID COPPER WIRE TO BE PLACED WITH THE GRAVITY SEWER MAIN.
IF THE SEWER MAIN DEPTH lS GREATER THAN 8 FEET FROM FINAL SURFACE
ELEVATION, PLACE THE WIRE AT A DEPTH BETWEEN 7 AND 8 FEET BELOW
FINAL SURFACE ELEVAT70N. IN PAVED AREAS, PROVIDE ACCESS TO THE TRACER
WIRE THROUGH A MINI—MANHOLE. IN AN OUTFALL CONDITION, PROVIDE ACCESS
SIMILAR TO THE WATER LINE TRACER WIRE DETAIL. LOOP THE WIRE AROUND
THE STANDARD MANHOLE. SEE DETAIL ON SHEET 02
NOTE'
1. ALL STORM STRUCTURES SHOWN ARE NCDOT STD. CATCH BASIN W17H THE
EXCEPTIONS OF SD 10 WHICH IS A NCDOT STD. DROP INLET AND SD 11 WHICH
SHALL MATCH CURB SECTION.
2. PIPE/MAIN CROSSINGS: STORMWATER OVER WATER MAIN,MIN. 18"
CLEARANCE WITH ONE JOINT DIP WATERLINE CENTERED UNDER STORMDRAIN.
3. PIPE/MAIN CROSSINGS: STORMWATER OVER SANITARY SEWER MAIN; MIN. 24"
CLEARANCE.
4. HORIZONTAL PIPE/MAIN SEPARATION, 10' MIN. CLEAR BETWEEN
WATER/SEWER OR INSTALL WATER 18" OVER SEWER IN SEPARATE TRENCH OR
USE DIP OR ENCASEMENT ON BOTH MAINS.
JV 227.24
4 -INCHES METOL (APPROX) WITH ESTABAED MAL SEEDED CRASS —
COVEF. 115E TEMP. REIFORCEUDIT LINING NAG. S75 OR EOUAL e���
(SEE PUN FOR MORE RIGID LINING AT POND SPILLWAY a OVEFFLOW SUMME)
DESIGN/AnEwAmm ro SEPARATE22SEPARATE RSERS
011uln 1 FOYP) RD
TOP of CORM ELEV.
TREATMENT VOLANE FAaM oTq I TOP OF SPELWAY ELIV.
OVERFIM VDE111ME },
(SEE PIAN VIEW a DETAILS BELOW) �T (SEE PIAN VIEW FOR SPILLIYAY INMG)
0, in COMPACTED CLAY CAM CIXS KEYED INTO
WO, EXIST GROUND - FIELD INSPECTION e
ER CONTRACTORS
INDEPENDENT TESTING "N ,S
WATER QUALITY vmuw
STORAGE 8". FOR BASE EXTENSION OR ooNCRETe
'EXTENDED" ORY POND FOOTING PER APPROVED SHOP
DRAWINGS (AS NEEDED FGR
Nm-FLOTATX*0
SCM #1 — EXTENDED DRY DETENTION SECTION DETAIL
NO SCALE
POND DATA CHART
DRY POND INFO
DIMENSION
ELEVATION
TOP OF DAM
SPILLWAY
10' WIDTH
30' LENGTH
245.00
243.75
RISER GTRUCTIN /1:
TOP OF CONCRETE BOX RISER
4'L X 4V
244.50
CORED ORIFIWS)
N/A
N/A
2" PVC FIRING W/SMALL ORIFICE
(AT POND BOTTOM)
1.0" SM. ORIFICE DIA
236.50
OUTLET PIPE(S) INVERT INLET
1-12" RCP
236.50
OUTET PIPE(S) INVERT OUTLET
1-12" RCP
236.00
RISER STRUCTURE E2:
TOP OF CONCRETE BOX RISER
41 X 4V
243.00
CORED ORIFICES)
1-6" DIAMETER
242.25
2" PVC FITTING W/SMALL ORIFICE
(AT POND BOTTOM)
N/A
N/A
OUREf PIPE INVERT INLET
1-18' RCP
236.50
OUfEf PIPES) INNE7fT OUTLET
1-18" RCP
223.00
NOTES
1. Install all required erosion control measures prior to Pond grading (ref: Erosion Control
Plan) Use temporary seeding as required during groding operations. Use reinforcement
matting with final seeding in accordance with this Plan and/or the Erosion Control Plan.
2. Pipe Outlets: See Plan View and/or Erosion Control Plan for Pipe Outlet Dissipotor from
Riser Structure /2. Pipe outlet from Riser Structure /1 discharges at slow velocity to
SCM -2 (Bioretention) with no dissipator required.
3. Pond Overflow Spillway: See Plan View and/or Erosion Control Plan for Spillway Lining.
3. LOCATE & CONSTRUCT RISER STRUCTURES IN FIELD AS FAR AS PRACTICAL
WITHIN INSIDE SLOPE OF POND DAM FOR MAXIMUM FLOTATION RESISTANCE.
CONIC. AT TOP OF RISER RAST-AERSTANT TRASH RACK SCREEN. OR OTHER
W/YNMIOIE MF6S CONED ORIFICE DEBRIS GlW✓D PER APPROVED 4T, ORAWNGS OR
OPENING RISER WMFACRRFRL SPEC*ICATIONS
2' PIC FITTING
PER APPROVED
SHOP ORAWINO
OIITIET PE'E OURET PPE
HAI/D-SHAPED
CONCRETE SUMP
SMALL ORIFICE RIND GRAN: 6' DUCTILEWITH
IRON OR ALLNSIOKAWN PPE
BASE EXTENSION OR CONCRETE
THIRD
RISER NOTED EIIIH VALVE EXfETNS1ON. PER
FOOTING PER APPROVED SHOP CaffRICfOR'� AAPR . SHOP
GROUT -RLL NSICE DRAWNGS -FAS H MONO CROIR-Fll1 NSUE (EXTEND 1WIINL v/lVi CONTROL ABOVE RISER)
AS REaro AS REO0
RISER STRUCTURE #1 RISER STRUCTURE #2
NO SCALE NO SCALE
BOOM"S TOPSOIL (APPROX) MATIN
BEAMUCA OR ZOYSIA GRASS.
SEE NOTES BELOW
FOES'NIML N POND DNDNSIONS
TOP DAY vrspo.
s1'—w ewe
I 1 °ETT'
COMPACTED CLAY FILL A-
wTOW. AS REOD 1
-�._.__'�_ SANDY SOL IT SITU
IDOSE SOL FOR
FD NATNE
AT OD Sao. FDR ANY Fu
AT BOITpI
NOTES
1. Install all required erosion control measures prior to pond grading (ref: Erosion Control
Plan) Use temporary seeding as required during grading operations. Use reinforcement
matting with final seeding in accordance with this Plan and/or the Erosion Control Plan.
2. BASIN MINIMUM DIMENSIONS Depth - 12". L - 50; W - 20 (Measured at Pond
Bottom). Minimum Volume - 1.080 cu.ft Pond edges may be shaped and rounded in
field for more aesthetic look as long as minimum depth and volume is obtained.
SCM #2 — BIORETENTION SECTION DETAIL (SANDY SOIL TYPES)
NO SCALE
rILE
xxxxxx
DESIGN
C6