20090040 Ver 2_Stormwater Info_20090707

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BASS, NIXON & KENNEDY, INC. _C14" G 11
CONSULTING ENGINEERS
..??4{41c _ W <
? 6310 Chapel Hill Road, Suite 250, Raleigh, NC 277E,p
Telephone: [phone], Facsimile: [phone]Uq
® 3319 Heritage Trade Dr., Ste. 201, Wake Forest, NC 27587 '
Telephone: [phone], Facsimile: [phone]
AT /6/09 NJOB
o. 04-08053
N:
Annette Lucas
PIZ.
y Beacon Lake Industrial Commons
401 Permit - Revision
DWQ Project # 09-0040

TO:DENR - Division of Water Quality - 401 Unit
2321 Crabtree Blvd., Suite 250
Raleigh, N.C. 27604
WE ARE SENDING YOU: ® ATTACHED ? UNDER SEPARATE COVER VIA: BNK Courier THE FOLLOWING ITEMS:
? SHOP DRAWINGS ? PRINTS ? PLANS ? SAMPLES
? SPECIFICATIONS
? COPY OF LETTER ? CHANGE ORDER ?
COPIES DATE NO. DESCRIPTION:
2 REVISED BIORETENTION CELL DESIGN WORKSHEET
2 REVISED BIORETENTION CELL CHECKLIST
2 REVISED BIORETENTION CELL DESIGN CALCULATIONS
1 COPY OF 401 WATER QUALITY CERTIFICATION
1 COVER LETTER

THESE ARE
L, L
TRANSMITTE
D OR rlaFrK
Pn Rci nw-
® FOR APPROVAL
? FOR YOUR USE
? AS REQUESTED
? FOR REVIEW AND COMMENT
? FOR BIDS DUE
? APPROVED AS SUBMITTED
? APPROVED AS NOTED
? RETURNED FOR CORRECTIONS
E-l
? RESUBMIT COPIES FOR APPROVAL
? SUBMIT COPIES FOR DISTRIBUTION
? RETURN CORRECTED PRINTS
20 ? PRINTS RETURNED AFTER LOAN TO US
REMARKS: ANNETTE:
PLEASE SEE ATTACHED REVISED BIORETENTION DESIGN AS DISCUSSED EARLIER. PLEASE REVIEW AND
CONTACT ME AT 919-645-2096 SHOULD YOU HAVE ANY QUESTIONS OR REQUIRE ANY ADDITIONAL
INFORMATION.
THANK YOU FOR YOUR HELP.
COPY TO: SIGNED: MARTY D. BIZZELL CPESC
D
JUL 2008
NCDENR
Permit Number: 01- 00-fo
(to be provided by DWQ)
0F WA
?TF9OG
y
O
N FORM
"LOOS DST ERQU ,ORMW?O EC RTNFICATION APPL CIATION FORM
'blORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
llPR0.lECT INFORMATION
Project name Beacon Lake Industrial Commons
Contact name
Phone number 919-851-4422
Date June 30, 2009
Drainage area number 1
--
II. DESIGN INFORMATION
-- - - --- -- -
Site Characteristics
Drainage area 78,408 ft2
Impervious area 58,806 ft2
Percent impervious 75.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Is pre/post control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre-development 1-yr, 24-hr peak flow
Post-development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
Storage Volume: Non-SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre-development 1-yr, 24-hr runoff
Post-development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Cell Dimensions
Ponding depth of water
Ponding depth of water
Surface area of the top of the bioretention cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In-situ soil:
Soil permeability
Planting media soil:
Soil permeability
Soil composition
% Sand (by weight)
% Fines (by weight)
% Organic (by weight)
Phosphorus Index (P-Index) of media
Form SW401-Bioretention-Rev.7
N (Y or N)
N/A in
N/A in/hr
N/A ft'/sec
ft'/sec
ft'/sec
4,753.0 ft3
5,115.0 ft' OK
NIA ft3
NIA ft3
N/A ft3
#VALUE! ft3
N/A ft3
12 inches OK
1.00 ft
5,285.0 ft2 OK
125 ft OK
40 ft OK
N/A ft OK
12 hr OK
24 hr OK
36 hr
1.00 in/hr OK
1.00 in/hr OK
85% OK
12% OK
3% OK
Total: 100%
NIA (unitless) Insufficient P-Index.
#VALUE!
Parts I and H. Design Summary, Page 1 of 2
Permit No:
(to be assigned by DWQ)
- - - -- -
!1III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
M 17k3 G4, z
Mt7F7 Z.+ZL
wvi3
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Im () 107 64-Z
PA 0 0> e+ r-
kWJ07 44 2-
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Form SW401-Bioretention-Rev.7
1. Plans (1" - 50' or larger) of the entire site showing:
/ Design at ultimate build-out,
13 Off-site drainage (if applicable),
/ Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
i -Pretreatment system, F-CEg*Y
/ -High flow bypass system, c t3 t o
Maintenance access,
i Recorded drainage easement and public right of way (ROW),
Clean out pipe locations,
Overflow device, and
/ Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
,, - Cell dimensions
,.,--Pretreatment system, tioveiFBA' T
r High flow bypass system, cgze
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Design at ultimate build-out,
011o, Off-site drainage (if applicable),
i Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
indirata tha P-IndA.Y hatwaan 10 nnri In (-fp QjE a C?1MN3?p ?Y pE11p?t? 4o" (CG701r-T
3. Section view of the bioretention cell (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower
/Underdrain system (if applicable), and
/Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
/S`HWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. Al
elevations shall be in feet mean sea level (fmsl) Results of soils tests of both the planting soil and the in
situ soil must include:
Soil permeability, Vst>
Soil composition (% sand, % fines, % organic), and
P_inricr
5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing: (*Op)
A variety of suitable species,
Sizes, spacing and locations of plantings,
Total quantity of each type of plant specified,
A planting detail,
The source nursery for the plants, and
Fertilizer and watering requirements to establish vegetation.
6. An assurance that the installed system will meet design specifications upon initial operation once the
project is complete and the entire drainage area is stabilized.
7. A construction sequence that shows how the bioretention cell will be protected from sediment until the
entire drainage area is stabilized.
8. The supporting calculations (including underdrain calculations, if applicable).
9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. Qf/?7tc?j?Y '4k $.?ttZt?D
10. A copy of the deed restriction.
Part III, Page 1 of 1

Bioretention Calculations /?
Project Name: Beacon Lake @4?I
Design Criteria: 2007 DWQ BMP Manual ?(?? ???
Cell Number: 1 -Lot 3
0
Step 1: Determine Drainaae'Area and Impervious Surface wvsT?`F' :J J
Drainage Area: 1.80 ac cy
Impervious Area: 1.35 ac
Impervious Rational C Value:
Pervious Rational C Value:
0.95
0.30
Percent Impervious: 75%
Rational "C" Value: 0.79
Step 2: Determine the Volume of Water to Treat
Rainfall to Treat: (First Flush)
1 in
Runoff Coefficient (Rv) = 0.05 + 0.009*(% Impervious)
Runoff Coefficient (Rv): 0.73 in/in
Runoff Volume (WQV) = Rainfall * (Rv) * (Drainage Area)
Runoff Volume (WQV): 4,753 cf
Step 3: Determine the Surface Area and Depth Required
Ponding Elevation Between:
Ponding Elevation:
Ponding Depth:
Required Surface Area:
193.36 and
194.35
11.89 in =
4,795 sf
5,285 sf
2.00 in/hr =
8% Fines
194.36
Provided Surface Area @ Ponding Depth
Step 4: Select Soil Media Type
Permeability (1 or 2 in/hr):
Percent Fines Required in Mixture:
Step 5: Determine the Soil Media Depth
Depth of Soil Media (di): 30 in =
Duration of Ponding: 5.9 hrs
Time to Drain WQV thru 24" of Media: 17.9 hrs
Step 6: Select the Appropriate Overflow Structure
Bottom Elevation:
Ponding/Weir Elevation:
Maximum Allowable Elevation:
Weir Coefficient: (C,,)
Flow to Bioretention based on max flow through
PVC discharging to Cell:
Min. Weir Length (L): = Q
CWHan
Selected Weir Length:
0.99 ft
4 ft/day
2.5 ft
0.248 Days
0.748 Days
193.36
194.35
194.86 (Based on 18" Max Depth)
3.00
0.86 cfs
0.79 ft
12 ft

Outflow Capacity from Overflow Weir:
Outflow Capacity From Overflow Structure Pipe:
Top of Berm Elevation:
Step 7: Determine Attenuation
Modified Darcy's Equation :
Q = KAd,,
24(3600)d,
Qn = 4(5285)(dhn)
24(3600)(2.5)
Ratina Curve for Outflow Throunh Media-
Stage (ft) Outflow cfs
0.0 0.00
0.5 0.05
1.0 0.10
1.5 0.15
2.0 0.20
2.5 0.24
3.0 0.29
3.5 0.34
4.0 0.39
4.5 0.44
5.0 0.49
Stage at First Flush Elevation:
Outflow through Media at First Flush Elevatior
Step 8: Size the Underdrains
Underdrain Sizing:
D = 16 x [Q x n /so.s]3ie
Flow Rate to be Carried by Underdrain:
Safety Factor for Flow Rate:
New Flow Rate to be Carried:
Manning's Roughness Coefficient:
Slope of Underdrain Pipe:
Diameter of Pipe Required:
Choose 4, 6, 8, or 10" diameter PVC:
Number of Pipes Required:
13 cfs
2.5 cfs (Manning's)
195.36
Q = Peak Flow through Cell (cfs)
K = Permeability of Soil Media
A = Surface Area of Cell (sf)
dh = depth of max head (ft)
d, = depth of soil media (ft)
3.49 ft
0.34 cfs
Q = Flow Rate to be Carried by Underdrain (cfs)
n = Manning's Roughness Coefficient of Underdrain
s = Slope of Underdrain Pipe (ft/ft)
D = Pipe Diameter (in)
0.34 cfs
10.0
3.42
0.011 (PVC)
0.005 ft/ft
12.62 in
6 in
7
HUNK
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
May 5, 2009
DWQ Project # 09-0040
Wake County
Mr. Patrick Denton
Beacon Lake Industrial Commons, LLC 1
5112 Departure Drive, 1.1 ` r'tl=
Raleigh, NC 27616
Subject Property: Beacon Lake Industrial Commons 11i:ScB artilCtants 1a1
Ut to Crabtree Creek [030402, 27-33-(10), C, NSW]
Approval of 401 Water Quality Certification and Authorization ?Certificate per the Meuse River
Buffer Protection Rules (15A NCAC 28.0233) with Additional Conditions
Dear Mr. Denton:
You have our approval, in accordance with the attached conditions and those listed below, to place fill
within or otherwise impact 0.0015 acres of 404/wetland, 188 linear feet of perennial stream (148 linear
feet of permanent impact and 40 linear feet of temporary impact), and 8,545 square feet of Zone 1 Neuse
River basin protected riparian buffer, and 4,631 square feet of Zone 2 Neuse River basin protected
riparian buffer, as described in your application dated January 9, 2009, and received by the Division of
Water Quality (DWQ) on January 9, 2009, with additional information received on February 26, 2009,
March 12, 2009, and April 29, 2009, to construct a light industrial park at the site. After reviewing your
application, we have decided that the impacts are covered by General Water Quality Certification
Number(s) 3704 (GC3704) and 3705 (GC3705). The Certification(s) allows you to use Nationwide
Permit(s) NW 14 and NW39, respectively, when issued by the US Army Corps of Engineers (USACE).
This letter shall also act as your approved Authorization Certificate for impacts to the protected riparian
buffers per 15A NCAC 2B .0233. In addition, you should obtain or otherwise comply with any other
required federal, state or local permits before you go ahead with your project including (but not limited
to) Erosion and Sediment Control, and Non-discharge regulations. Also, this approval to proceed' with
your proposed' impacts or to conduct impacts to waters as depicted in your application shall expire
upon expiration of the 404 or'CANIA Permit.
This approval is for the purpose and design that you described in your application. If you change your
project, you must notify us and you may be required to send us a new application. If the property is sold,
the new owner must be given a copy of this Certification and approval letter and is thereby responsible for
complying with all conditions. If total fills for this project (now or in the future) exceed one acre of
wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A
NCAC 2H .0506 (h). This approval requires you to follow the conditions listed in the attached
certification and any additional conditions listed below.
401 Oversight/Express Review Permitting Unit.
1650 Mal Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd„ Raleigh, North Carolina 27604
Phone: [phone] V FAX: [phone]
Internet: hhp:/Ih2o.enr.state.nc.uslncwetlands/
Norie Carolina
Natmally
An Equal Opportunity 1 Atfirmalive Achon Employer
Beacon Lake Industrial Commons, LLC
Page 2 of 4
May 5, 2009
The Additional` Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
Type of Impact Amount Approved nits Plan Location or Reference
404/Wetland 0.0015 (acres) PCN page 4 of 10
Stream - perennial 188[(linear feet) 148 linear feet
permanent impacts and 40 linear feet
tem or impacts) PCN page 4 of 10
Buffers Zone 1 8,545 (square ft.) PCN page 8 of 10
Buffers Zone 2 4,631 (square ft.) PCN page 8 of 10
2. No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond
the footprint of the impacts depicted in the Pre-Construction Notification. All construction
activities, including the design, installation, operation, and maintenance of sediment and erosion
control Best Management Practices, shall be performed so that no violations of state water quality
standards, statutes, or rules occur.
3. Erosion and sediment control practices must be in full compliance with all specifications governing
the proper design, installation and operation and maintenance of such Best Management Practices in
order to protect surface waters standards:
a. The erosion and sediment control measures for the project must be designed, installed;
operated, and maintained in accordance with the most recent version of the North Carolina
Sediment and Erosion Control Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal, or exceed, the requirements specified in the most
recent version of the North Carolina Sediment and Erosion Control Manual. The devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
including contractor-owned or leased borrow pits associated with the project:
c. Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
4. Sediment and Erosion Control Measures
Sediment and erosion control measures shall not be placed in wetlands or waters without prior
approval from the Division. If placement of sediment and erosion control devices in wetlands and
waters is unavoidable, design and placement of temporary erosion control measures shall not be
conducted in a manner that may result in dis-equilibrium of wetlands or stream beds or banks,
adjacent to or upstream and down stream of the above structures. All sediment and erosion control
devices shall be removed and the natural grade restored within two (2) months of the date that the
Division of Land Resources or locally delegated program has released the project;
5. Diffuse Flow
Beacon Lake Industrial Commons, LLC
Page 3 of 4
May 5, 2009
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate
before discharging into a stream as identified within 15A NCAC 2B .0233 (5). If this is not
possible, it may be necessary to provide stormwater facilities that are considered to remove
nitrogen. This may require additional approval from this Office.
6. Protective Fencing
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved under this authorization shall be clearly marked with orange warning fencing
(or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities;
7. Stormwater Management Plan Implementation Procedures (No Further Approval Needed)
• The approved SNIP must be constructed and operational before any permanent building or
other structure is occupied at the site. If a development is phased, then the approved SMP for
each future phase must be constructed and operational before any permanent building or other
structure associated with that phase is occupied.
• The approved SMP, including the signed and notarized Operations & Maintenance
Agreement, as well as drainage patterns must be maintained in perpetuity.
• The SMP may not be modified without prior written authorization from the SMP approval
authority. If the SMP falls under another state stormwater program, then a copy of the
approval letter and the modified SMP must be submitted to the 401 Oversight/Express Unit
prior to the commencement of the modifications.
8. Certificate of Completion
Upon completion of all work approved within the 401 Water Quality Certification or applicable
Buffer Rules, and any subsequent modifications, the applicant is required to return the attached
certificate of completion to the 401 Oversight/Express Review Permitting Unit, North Carolina
Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650.
Violations of any condition herein set forth may result in revocation of this Certification and may result in
criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct
impacts to waters as depicted in your application and as authorized by this Certification, shall expire upon
expiration of the 404 or CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of
the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a
hearing.
Any disputes over determinations regarding this Authorization Certificate (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is
subject to review as provided in Articles 3 and 4 of G.S. 150B.
Beacon Lake Industrial Commons, LLC
Page 4 of 4
May 5, 2009
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act and the Neuse riparian buffer protection rule as described within 15A NCAC 213 .0233. If you have
any questions, please telephone Cyndi Karoly or Ian McMillan at 919-733-1786. 44
Teen H. Sullins
CHSI Ym
Enclosures: GC3704 and GC3705
Certificate of Completion
cc: USACE Raleigh Regulatory Field Office
Lauren Witherspoon, DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Nicole I. Thomson, S&EC, P.A., 11010 Raven Ridge' Road, Raleigh; NC 27614 ,
Filename; 090040BesconLakelndustrialCommons(Wake)401_NBR
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT cup
Action ID. 200802451 County: Wake USGS Quad: Raleigh East
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VEu>t?r? n Ttp y
Property Owner / Authorized Agent: Beacon Labe Industrial Commons, LLC
Address: Attn: Mr. Patrick Denton";
5112Departure Drive
Raleigh, NC 27616
???1??? fiants PA
Telephone No.: 919-863-8881
Size and location of property (water body, road name/number, town, etc.): The Beacon Lake Industrial Commons
proiect site is approximate1v 22 acres of land located off of Plainview Dr.. annrnximately 1.5nn feet cnuth"cf of the
Description of projects area and activity: This authorization is for the permanent impact to 0.0015 acres of wetlands
and 148 If of stream channel and the temporary impact to 40 U of stream channel due to the construction of an
Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344)
? Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Regional General Permit Number:
Nationwide Permit Number: 18 and -14
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached
conditions and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the
permittee to a stop work order, a restoration order and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified,
suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or
modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of
the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the
activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are
under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the
activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless
discretionary authority has been exercised on a case-by-case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You
should contact the NC Division of Water Quality (telephone [phone]) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA),
prior to beginning work you must contact the N.C. Division of Coastal Management.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal,
State or local approvals/permits.
If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory
program, please contact Crystal Amsehler.
Corps Regulatory Official Date: 02/04/2009
Expiration Date of Verification: 2/4/2011
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so,
please complete the Customer Satisfaction Survey located at our website at httn://regulatorv.usacesupTy.com/ to complete the survey
online.
Page I of 2
Determination of Jurisdiction:
? Based on preliminary information, there appear to be waters of the US including wetlands within the above described project area.
This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process
( Reference 33 CFR Part 331).
? There are Navigable Waters of the United States within the above described project area subject to the permit requirements of
Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our
published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
® There are waters of the US and/or wetlands within the above described project area subject to the permit requirements of Section
404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
? The jurisdictional areas within the above described project area have been identified under a previous action. Please reference
jurisdictional determination issued Action ID
Basis of Jurisdictional Determination: Wetlands were determined using the Corps 1987 delineation manual. Streams were
identified utilizing ordinary high water mark as identified in the field
Appeals Information (This information applies only to approved jurisdictional determinations.)
Attached to this verification is an approved jurisdictional determination. If you are not in agreement with that approved jurisdictional
determination, you can make an administrative appeal under 33 CFR 331. Enclosed you will find a Notification of Appeal Process
(NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA
form to the following address:
District Engineer, Wilmington Regulatory Division
Attn: Jean Manuele, Field Office Chief,
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 331.5, and that it has been received by the District Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by 4/6/2009.
**It is not necessary to submit an RFA form to the istrict Off if u do not object to the determination in this correspondence.**
Corps Regulatory Official:
Date 02/04/2009 Expiration Date 02/04/2014
SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORMS, PROJECT PLANS, ETC., MUST BE
ATTACHED TO THE FILE COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
Copy Furnished:
Soil & Environmental Consultants
Attn: Nicole Thomson
11010 Raven Ridge Rd
Raleigh, NC 27614
Page 2 of 2
T I L I I L T I I,/T S III + ~ r-'"3
' ~ , , , \ ~ ~ x,11,
I , Type of Land Cover Site TN Export TN Export T1?i Export ; ,~y/ ~ ' ~ rll.9rf
I Area Coeff. by Land Use From Site , - ' n ~ r ` r~fl i3
, Acres bslac/ r lbs! r bslac/ r r - - t ( ) 0 Y) ( Y) 0 Y) %r ~ r+'+ r i f
' ~ I , ' i r,f r ~ '
, , , , iy I lOT 182 f rr ; ~,'rl 3
Permanently preserved 8.44 5.06 ' ` - ' t ; 1 ~ i ~ ~ ; ~ PIN 1724.15-64-6087 r ; I' t I ' - SECOND TRACT r,' r' ! LOT 184
undisturbed open space ~ } t ~ . -SS'' I ZONING ~ CUD IND-1 ~ f' f% ! ~ ~ PIN 1724.15-64-8066
, Iy S fores unmown meadow , 1 _ ~ _ -s t, a , L- ~ _ ~ ~ S, USE ~ VACANT ~ ~ r L ' THIRD TRACT - ~ '.'r~~'f t L(~r 183 ZONING ~ CUD IND-1 PIN 1724.15-64-9086
Permanent) reserved 1.2 ~ ~ 'S Y p 11.84 14.21 o p dd _ -ss ~~'rf ~PIM FIRS 1TRACT 181, USE j VACANT , ~O„~'~AND-1 I .,s`^,,,,, ~~j1~4?~.
mans ed open space (grass, ; I ' : , - ~ , -ss g _ 411. r ~ , , 1, I~: 1 1 : WAY .-S r ti ~ONINGi ~ CUD IND-~ ''GACANT
landsca in etc. ' ' ` 'I",.,i1- I".1 i. ~Ibv` . r plR~-ROAR.- , ,01111,,, % c,N ' 1 GRAVE/. , ~ r USEf ~ VACANT ~ r l r ~ ,
Impervious sarfaces (roads, 1.1'] 21.2 ' 24.80 +4i!I, ; G.- --EXIST' , -SS- N/F VERNON & TERRIVI INON & TERRI VERNON I ' ~ ' r i SHADING ENDTES ~
f ~ - ~illl 't==~~-~~, ~ 'SS I PIN 1724.15-63-295 parking lots, driveways, roo s, - r i t -ss , ' - ~ •t I r 1 ZONING R-6 1724.15-63-2956 ~ i rr f/ r TREE CON gRVATION (.,r ~ " ZONING ~ R-6 I ~ r ~ i~ ~ ~ J
paved storage areas, etc.) • , ~ .-ss. 1 USE !RESIDENTIAL >E ~ RESIDENTIAL / i rrr y rr , f AREA (TYP1 ,}v. , 4I .1 ~ i '/r. ~'~y~
/ . 1 Total 21.45 44.OS i 1 1 N/F DAFFEY D. GURLEY ERIN ENTERPRISES w'~ ~ r l r 3 , a ~ , 1'j I ~ ~ N U r t ~ r/' i;• a~=nr=,,t~li 4~r, i I I ''11 f l r PIN 1724-64-4071 z~,' r f+. 11+ u, I 1 r
` la ? ~ 1 PIN 1724.15-63-1924 c''.L'~-''} g ,r~J. j `-t 1 ZONING ~ CUD IND-1 i } Avera a for Site 2.05 - 1 ~ ZONING • R-6 w~ ~ I I !''r . ~!i'r,~~ri~/.~~ I ~ 1~1, 11 I hl!bl ~ Q 1 ~ USE ~ APARTMENTS w i i ~ t ~ ,~\5 ~ !'~,~1~ a~ ~ 1h~~',///t ( I ~ r I~~~ ~ v ~ I ~ I _ ~~~``'!!/y t!'~~l~'"r~ti~ M I 1dNII 111 i I' ® n
i ~'t\ I i t , USE ~ RESIDENTIAL j ~ } i , \ ~ ~ j ~ ~ --~I ~i~-......-3 ~/~Ji~~R/' N O /tN!~~i Ilfr~y, .II \V ~ (Q~
I; •s~ , o PLM FAMILIES TOGETH~R INC I 1 I I } ~.~'1 This project is exempt from peak attenuation requirements pursuant to CI of Raleigh r PIN 1724539925 1 1 ' ' 1 Ex 24^ RCP ~ I: ~r~~~, _ ~i iII I~ ~ ~a INV = 273.10 t ! ' -224` ~ I 'I,/ !j, -1` ~~~1,1 ;R ,'~/~,ir, i rl(t V A\ tA NU
I'o 4 USE I LOA HABITAT FOR 1 1 ' I I 1 1 Development Code, Volume 2, Part 10, Chapter 9, Article B, Division 1, Section 10-9023, 1 s~ , 1;~ HUMANITY WC 8M199411101 t 1 ; I ' ~ ~ I r -t L',I ~ r,~ 8116E dq / / >'l SIP . ~ \ V+ Q
t 1 1 1 11 Paragraph'b~'3). In addition, any water quality BMPs or nutrient offset payments necessary 1 a I , 1 LJ U ~ ' I}~ I'' ~ ~2~0 ~~7t~~~"~1 R /~..~A•.,.~j/~ ~',('d~x~~l~ i , ~ ZF EX 24 RCP FES ~yA 0 i (,I t/ '+q'~~'~I;'!J 1 V~'~""~~ ~l' l,r~tr~, ~ r~ ! i \ "I
to meet Nitro en ex ort re uirements are to be rovided on a lot-by-lot basis as per the I 1 Qi r , t 1 t 1 TREE PROTECT INV = 212.39 1A - ~ f ~ ~3 jr t,~~.•, I ~ )~>t I v TREE PROTECTION (REMDVE FES AND--'- ' "\T I /i f h ~ 'r / i 1''~1;~{'il ' ; i ; , \ W RZ v1
9 p q p I ' c:? , ` : . i1 t } - 1 FENCE t TYP ) approved Preliminary Subdivision Plan (unless otherwise directed by CINQ)• All materials ;1',' ~ ; ; ; r ~ FENCE ITYP) `INSTALL JUNCTION - ~ I • ~ 'I JA~~ 0 ~ I I , \ z W ~ 1_ ,~,1~, +jEf~~,,~'/ti I i T ADFO fir L i ~ < a y ~ ,BOX 1. j./~ / ~ '~-~i'~`.ril!~~~ r rl dl ~ !N 724 ya 3'r~'5~~% I I I, ~ ~ I- W
ods sh II be in accordance with & conform to Ci of Ralei h I ~ ` ~ ' ~ & construction meth a tY I~ ~ , 1 , , I ~ ~^z~~h , ~ U / I ONI G, j IND~aI I ! ~ GG O ~ )-WER:ESMT. ~ /3 ~'r,lj ~ ~ /i ir~US~ I wi~EH(J(JSEi ~ I; ' I1. W
' ' ~ PAN L II~fiRAN MINISTRIES 1 1 r , standards, details & specifications. + 1 _ 0 ;M' 1987 P'G. 1841. I I ~ ~ „~i f1 a I" ` ~ ~ ~ ~ ~
~ 1' p ' I ,_--'-'OF WAKE) COUNTY, INC. 1 1 = XI , i,, , a l . r PIN 172.15 53-9844 1 • • _ -PR P • ' PR ti ` ' / / 1 I n~~ ~ ~ ?
I o I !w, ~ I! ~ I 1 ZONING !CUD R-10 1 1 DRAINAGE 'EASM_ T I I NOTEa 1 ~ I 1 - ~ N ' W N
I I I , ; ~ I I i USE ! M.FI RESIDENTIAL 1`' 212.- , ~ _ I I HILLCREST BAPTIST CHURCH RETAINING WALL r3 STORM DRAINAGE I, ' 11, I ,,.i•,I , I 1 ; 1 _ ~ / _ r1. , I ~/l /r~/ice .1 +I', FLOQDPL`A or):, INl 1 J~:~m ~ , I I ~ ` , ~l., il, (III. V ! ~ ~D~~ \ \ `.1' ~ it'Yy ~ / / / ` ~ti ~ ~4ij I11 Ali: P- I 4 ' G
1 PIN 1724.15-53-5801 DESIGNS ARE SUBJECT TO CHANGE I' ' ' it , DV°1 I j . ,1 _ t c' ( I P N N T PAN APPR VA FOR ' ! I ' - P 1 - , 1 I ZONING ~ R-6 E DI G S1 E L 0 L 11 ' I ~ r - , 'y._~°
a I ' USE !CEMETERY EACH LOT. ALL SUCH CHANGES MUST ',,k. 1 ? I t.----' r HW 3 0 ~ o - - ',,.~1~ l I , , / , ~ , 1 u- j w j BE REVIEWED BY THE CITY OF RALEIGH ~ I• - ti O ~ 11` \ ~ ~ ~b TI / ,illf~l' ~ y\Q'/' ,`:\,~C,,.~~ _ l`.~x,41' i1'1 1QflFP'!N V / ° - ~ ' I; fir' / / • i'I i ~ ~~'pi~i ~ 4t~' ~ p ` ~0 ,-O~ - .l ar ' rJ,~O I /I .r ,rr 'ir \ ~,~,~,~J3u~~~~.~n ,~'-',1~P, ~ f--"• w.~
~ I o 1 PR10R TO CONSTRUCTION + ~..r,' - - U ! I ,t ' I-,- , r N ti 0 r~3 III, ' ~~;I. ~'~i'+)q~k~,~1~,~ ARKER R :I ~~~.r;~- .I >>OT
u1 I I ' 1i I ' I/ 4 - - - _ _ _ . _ ~ / I F 'ti,N U , r,+~ '~~`~2-~{rl ,~LOPMENT,'L! . ~ / ~
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I w I W Y \ Ga r~~3S i 1 r4~ 1 ^10 I i t' 1 I I 1 r I ~ 20' f , i r 1• ' I r~ 1 ~ , D8 QB , REINFORCED PRECA T / • ' i' / V ~ ~ t ~ n rr F ~ ! xrr~~lrK ~ r ~ it li K
w 1 o I w y o ~ u q _ ? 1 r~~ ti , t ~ , ' 11 ti ` 16°--.. . , a, NN / , ~ CONCREY.E BdX CULV S` / y )r ~ 6 ~ 92y ~ `I BY STAY T 1 f'f~,~ I ~ ' ! ; / r H! ; 'I " ~'I,rrl ° ~",o' ( I .3 Nappo .n 7 J / , I ~4 t , I~+ti{' r~~ a 1 I'( ~ ~ ~ J F Q) °I - ~ ~ did r f ~ I ' Ir r . i~ } L1, p
a: I I I DEBNAM PROPERTIES LLC a 1 NN ~ \ ; . r 1 - , I 1 1 , I ' i - m°' ' - I ~ o „It ? ,,N \ 'FES F ~ r r 1
- - ~ I I PIN 1724447360 y yy 11 11 N , \ \ r t 224'° r i, , r i NI ZONING . o o. _ .:o . - 1 I 111 . r \ . ~ \ u ,'TOP: = 4`'43' I~N, t V/ ~ ` INV ~~In .93 r ~ , /j ~~`~,K~,. i ( s'r'"+tl~~ayl~' V~ W a W N ~ ~ ,'rrl~~r±~ ~ /q 1 TeryrrF~r . i ; I i}~~1;r uri: ! Q ~ ~ °7
° I i USE ~ VACANT f n n NN w n o I 1' I I I ; , t' _ I N o - \ i l 8 w f Y ~'..~0 ~ r~, g~li;l ti~ r'V 1 ~+'I' f,.N ~ "xr¢l 1~~ / f f! I I', x ~ l~~ixt1; , i 7 I r,`.IG~,)I, ~ ~ ~ O t~ ~ ~ ~ ~~rl~~l / J / 1; r 1 t xlr'/ ~ i i ® V S 4.
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~ I I I la OIn \ R ~ - J 1' 1 ~ I / ~'1il - - . - ~ ,•206 ~;frl ~~,,~w/ ~ / ~~'I• ~ I~y~~~ 'SOP - 204.54 •rf i ~ ~ ~ W ~ a M M LL
I ~ I o a ~ . N 4' 1 `t + ~ \ \ IN ',nr' \ y, I I \ S E 'l' - 1 1 0'`~ VT C ESS S EN tN i','il ` N ro / \ 205 / .04.4 ~ i ,
I w f \ ` TREE PROTECTION X220 Al S .22 , / . ti d~ 1 TB ,T3•,4. 3 Q. t°111 -
1 o I t , ~ \ 'FENCE\tTY J L A - ~_/,'r M , `P ~ \ `I 1 I h'a 1 • \ \ 205• W 4 / _ 1 1 0 •C: 'a 'a S E MENT , ' I ,I 2 \ ~ / / /y 204:5. i i / '°+x~------ \ 05? ~ ; ' / ' ;ri ~ .204:4 ~ i' it ' EX FENCE OVER m ~ 205 CB~t9 \ i' ZO.38I~~ ~ 3~ 204.39 ~ r• I I I I i PROP. LINE
I \ 50 I\ Sb' RROGRE$S ` ` , pl ~ \ - ' , ~ l1 t ,M 1 4 I , ' M !~4 P P 20' PRIV TE' \ Z. \ ? \ - 2 225-'---.. - ~ - - 1 1`' 2 'i •t . _(T AB k•D\ , ~ I I I un, t ' D A 1 NAGE EAS T I tENERGY ES T. ~r ~ , ~ TE • ~ _ i' 20 r.„,?s.;~ I L. 204,.to f/ i I '1 I
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a I ~ '2 :.t!..,.,;P,..ROP:20 0 .29 , I '1 . ~1 ,~t I'. ~ 4! / I I ^;Mrn.;ii5 `WERJ:E' M T ` / ' ~ F~ 3 ACCE9 ~ ~ 70 r 1~ \ ,t \ !r ,1 1 ~ N NG - t .Fk80DPL-t1-1NEMA II I2 4.24I1'~ 204.32 `'D\ `~0 ~ \ = W_ W Z f-OE.jq,ws 'w/y ` I ~D3 903 ~ - y ~ ~ p' ~ z Q
L I 'i-I 'v ~ {'I h~ ~I, \ \ \ ` .EASE NT. I1,`'+ 1 \ Itlt 1 I r r 11 / ~D~jq• w 3 I T" 11 ~Jr''.., ,P „^~1 .w \ , _ ~ •1 ~ .4 INV - 2 8 47 \ 11 I 1 1 I, I 1,,1, 1 ~.-S I o - n' t / 1''•. IT M V I' I ; dV • ..~prd(~Ff ~ , C I~r,I t ~ .f Rq ~ r ~ ~rfl"~IF " ~ i 2 .48 4,
m I D I u!.` , ~Wri I' c, i. \ ' ` / , ~ 1 ,1 ~T~ , ''Ill 1 / I ~ ! 1. 't1 1 _i~„'•t~ °?'~:,::L:~ C v .I ~7 y'1 \ \ i' ,.r' ? .1 n , I 1, l ~~~r'r11,,(: 90r~l.~reflr~'•y. r."": ~jr ~F k:,.~: e 6 1 Z/ z4a 1w } ~ / S ~ Si~lat+ r I i r , ~ t t, , d~~; r~:airte' x ~ _ r r IL IL ~ W
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I , -r' / T EOM r rJ \ X _ ~ .FREE L E 'w ,v s.yi;;f•:'4'' 2"" r...: ~ B 'REMOVEO.)~ - el g.^:.>.`.^•'' t. I x . 0 , ':r ' , bS ' \ -''•%X'' NZ`~"~ s ' f ~ - ,R y ~ - if F N ' (TYP•,• 1 I r~,r;1,N _~r ~n.a~ o r l,snt q x i., ~ a, rJ~ la s r \r jr,r sr t7 ` {r r ' I I I B[ORETEN'P10, /.iaN.i v/,i a~r4~ ar r„r~'~v~d>rPrlr'~d xM~' ~'s Ii I I, ' ~rti der ` EX 24"xR~P~F(r'SI- ~r ' { ~ ~ i t ~ I~ I I
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C r1'~:;I L ASE L T _ - - - a.r, f;r.r , , •I ~ EX- CELL . a-. - r , ..a,t;, ,I 1.._ ~ i o ? ! . B•. 7 41. PG. 3.08 . ~ / ~ % ' ~ P``^' . ' - h r t;,`'.-,~yr 1 ,~F• ' ~ P/ Ey tiM fib ( h~ ~ ~ / ~ ;f~~~I• r/ ~,~bd pr ~~I,~rl ~Ylr ,l~~• if,.l !li 3 I , I i ~ ~ W 4 F,¢ ( ~ r111 I~.---b ~~++.IFC I it ~~W ~ >;~i~}rr~h 'FR~~i/'/~` \ ~tL t~!'I~{v~~x2its ~r t ~`~'r~y7,t~~i i~I~ II ~ , I ~ 1~
I I ..X TOWER , h - - i i I I r C acs I I r~; ---STYE' ~0 y-~' i-r~ 20 ~'_.._i / _ t .c~~1 II 5 Ii f~f'7 ij* 'Y ~ r~"yy.l~ , I%ji Q J i'" ~ t 4 r~ )1 I ~I'+~ ~ $ru'~ !i1' r~ 11~~ (I+I I I I N Q 11 / " t i t }l' R ~F ~ 3 "~h i~ J~ I~ r s , ti+ .~,~s.~',I 1 i I I I N N ~ ~ i i ' 5 ,/~it, r z4,~ i. Ixri fit ,t- yl ,a j5r t l+r'r~t~: d ifF'r `~+t t r i I I+ ill ~ j r'k"'I~ir+k~"4 1 I /:~ril~`rl iY~' ~/AGSIF~' ' lU~~`>(i t I rr~~ ~+rF r.~~t~~y'~rli~y ,I 1 I I + WAKE COUNTY ~ ~ ~ o" / =1 I l a a I, ~t 111 I
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° o:ol-I ~ ~ 3 SS X..-- - - - _ 1 B~tJ~USE' R1Y R50r. l~ ~X INV 194,8'6 9 l:F. f-U.. O ~ t. ~ NT r` ~j'RTR.ARIAN I I'~ R' r. / c~.11k ~,+.,,._/j:j/. t' u , I, , ,r~~/Na +r' rl4,~rljr:, iI I, 5U REF ~ r /r ,i ,s II RIPARiIAN~r I~rl Ir~-: b ~ ,~r~r Il~ar+~f rl f I ( I} ?
z ,t' ~ _ / f ~ RIPARIAN I o / _ ~BlyFFER r I / \ ~r! ~ 1 AR F - BUFF -R;Jr:: 'r :~5. fr' I ~ 1 I x , /1 ~ F OD A I N , °i,''',.a;'I , 1"al i':) BUFF FI ~ I t /r ~ / / • ,i..~„ , ,q N ~ I 1'raM1i, / ~r,~l: _ I' CURB' INLET ' ,I N ~ ~
. ' I { ~rF,r ~ , II 1,r'~7z~.riJ-,. Y/- ' ~ i I' N '1 SHADING DENDTES / I I r' al' / / . / P = '204.45 _ _ i ~ 1 TREE CONSERVATION ~ z
o -SS'P''IL I A-~N ~ r 'r / ' I I S 1 ~ - - ;l. ~ "'`,fir" J t r~',~,,;;ts ~i it /i/' fr:,'",!~~r;%' i! i I,INV i'N (NORTH) =•t X4.9 J'I ~I / ~ ~ , , I, AREA (TYP1 J ( ,~","~~ts •~Ir ~~i~/~TRE~/ SILT ,r INV,'iN (E ST'1 = 1 ~ I II
V a 1;,r r..; ~7 n , 1 x ? - , , , H1N 7 v ~ . r 1 ~rke~IY'~i 1 - r ~''r Irr D~IBO 11r' INV OUT = 94.8 1~~{{n~f a'~~ilr,~ ~ ~ u~~'I"~y~ l ~ FENCE /ITYP) I (7 2~ ~ r ~i '1 ~ ri' i ~ Q
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ALL EASEMENTS) t i v). - ~!~v(r .~r.~~,h;r. 'r~r',,,, / / t ~ m k', L! 11 S$-• - ;r,,0' M'I ~H`,SA '*~~<xJy d'j~ n;4,, . 1~~..y';~~ / C~/,, ~I~,, c; ` 16I , / ,1 0 l ,y • ~'i ; ~ - - _ /~•i 1,1- _ ~ '119 rr z , n •rf %d= - - , _ - r s i~ I _ - t _ - - ~ ~ ' / ' ~ ' ` UTILITY INSTALLATIONS AND OTHER PUBLIC FACILITIES,
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r UTILITY EASEMENT /!:;i.'sti'; o °3C _ / - v B.O.M. 1985 PG. 1319 ~ ~ - z 1 SS-. w„ / F%~ - r I; 1 i• ~ ~ ' - ~ BE CONSTRUCTED ON ALL STREETS AS SPECIFIED BY i/. r ~ ~ ~ o~~~ CITY CODE. THESE FACILITIES HAVE BEEN APPROVED
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`l I t / , ~ wrt~ 1r, ra.ri •;,.:.i;d~t, / / / 1 t ® ~ .1 m ' : it/i' art r,. 1'S' •a'N'F• 1 (TOP OF FILTER MEDIAL NV ).N B°PV~ z ~ W ~
i 1 I ° INV = 189.40 / /,'~;-!~ttyhr,'Ja"T~ir'',I'+fi'sa!simr;u~ U 1 • i I •tier.~w"r,~~~c1~.T;rdk~'~`~;' 'y IN•SITU (FROM CB20)=193.36 W ~ ~ W
l 1 I im° 1 »'r7;•y/;Liar`'a.+~~'''j~~'''~'-,'~,~'~r~v,~'d'' / \ - SOIL _ _ el °m ® i 4i'r~x~~;i$R:4•;i.~• xt'.T:1'.,tt'I>,:tmr / 'j/ 1 IN'SITU ` ~ ~ ®8 ~
~ I'P-•--- •a.••.-°m ;:hS•.i71•tl..aTyti.gr:a'~n°I'W:o.~',' i'/ /e~i m i I ;I'yr;:R:.isn...irbss~.l'ri!~^!tl,lr'~ ~ ~i 1. - '.,ryr41 11 J1~ u,lr• ,i' _ ~ / /1 1~; SOIL V ~ v V
m ! _,C-,-1-.. ' e.71;F:1i'~~'r:~!. ..r,.ir'i's''l u,<i:•;:: °'i~~ i~ , ~ m II, Ill!>v;i: ,»1.w~'d~Y•t„~:~;'ll~>i•a74~1% , y.. ,Vi/ /i/ _ . r '
I I _ / ..iii ' ll ~;;W Z
0
I;, I•~ STONE BED FOREBAY INVERT = 192°36 p ~ ~ ® ~ 1=
/ 0 0 ~ ~
° 1 / ~ ' / SOIL IN,SITU SOIL PVC UNDERORAIN ISEE DETAIL) pSLTU ~ W
IJ a d U
o IMPORTANT INSPECTION AND MAINTENANCE PROCEDURES: BIO•RETENTIO CONSTRUCTION SEQUENCE: - IMMEDIATELY AFTER THE BIORETENTION CELL IS ESTABLISHED,THE SOD WILL BE WATERED ONCE DAILY IF CAST IRON OVERFLOW GRATE ~ ~ ~ ~
o NEEDED UNTILTHE PLANTS BECOME ESTABLISHED (COMMONLY 8.10 DAYS), TOP DF CURB NOTES: Q Q
~ -SNOW MULCH ORANY OTHER MATERIAL WILL NEVER 8E PILED ON THE SURFACE OF THE BIORETENTION CELL. 9. ENSURE UPSTREAM CONTRIBUTING DRAINAGE BASIN IS FULLY STABILIZED PRIOR , TO COMMENCEMENT OF BIO•AETENTiON AREACONSTRUCTION. m ° 1) THE SLOPE OF TIC GUTTER 70 Eb tlf N ~j I' THE CATLH BASIN ON THE UPHILL N N
v 2• PLACE PLUG IN PVC OUTLET FROM CB20T0 PREVENTANY FLOW FROM -HEAVYEQUIPMENrWILLNEVERBEDRIVENOVERTHEBIORETENTIONCELL 101°etenl I I $~ii m ENTERING 814RETENTIONAREAPRIORTO COMPLETION, ELEV OVERFLOW GRATE = 194.46 FOR SLOPE 510E SHALL BEGIN 10' FROM THE ~ ~ ~ t- ' L: J J ° L1 L 12'''4' AEO.'S SEE THE CATCH BASIN. THE SLOPE DF
~ -SPECIAL CARE WILL BE TAKEN TO PREVENT SEDIMENT FROM ENTERING THE 810RETENTION CELL. 3. REMOVE TEMPORARY DETENTION BAS010N LOTUS PRIOR TO START OF project Name: Beacon Lake 16• i' NDTE 1. THE GUTTER TO THE CATLH BASIN
CONSTRUCTION. 3' I ON THE OOHNHILL SIDE. tl' M N um ELEV 810-RETENTION SHALL BEmN s' FROM Z SURFACE= 193.36 FLOW LINE THE carLH eas1N,
o -ONCEAYEAR,ASOILTESTOFTHESOILMEDIAWILLBECONDUCTED• 4. EXCAVATEBIO•RETENTIONFOOTPRINTAREATODEPTHSPECB~IEDONPI,ANS DesignCriteria:2007DWQBMPManual
D AFTER THE BIORETENTION CELL IS ESTABLISHED, FINANCIALLY RESPONSIBLE PARTY WILL INSPECT IT ONCEA MONTH AND 5, INSTALL 3'X3` OVERFLOW STRUCTURE AND 12° RCP OUTLET PIPERS SHOWN ON Cell NUmber.1- Lat 3 m WITHIN 24 HOURS AFTER EVERY S70RM EVENT GREATER THAN 1.0 INCHES (OR 1.5 INCHES IF IN ACOASTAL COUNTY). PLANS. + 21 S1EP5 SHALL BE INSTALLED IN ALL CATCH BASINS OVER 3' 1N DEPTH, y m 2.2' O.I. PIPE DA PVC PIPE DEPTH SHALL SE MEASURED FROM THE ~ ~
o RECORDS OF INSPECTK)N AND MAINTENANCE WILL BE KEPT IN AKNOWN SET LOCATION AND WILL BE AVAILABLE UPON 6. PLACE FIRST COURSE OF1157 STONE AND LAY 6° PERFORATED LEADER Step 1: Determine Dralnaae Area and Impervious Surface Step 7: Determine Attenuation L REQUEST INSPECTION ACTIVITIES SHAH BE PERFORMED AS FOLLOWS. ANY PROBLEMS THATARE FOUND SHALL BE LINES FOR UNDERDRAIN SYSTEM PER PLAN. INSTALLAND SEALALL CONNECTIONS e° H1N..OVER I2' oEEP i2' HIN. TDP OF THE GUTTER i0 THE INVERT FFF" y SOLE 12 'RCP ' uP TD 6' PROH tOP DP CURS. OF THE CATCH BASIN.
° REPAIRED IMMEDIATELY, OF PVC PIPES. ENSURE UNDERDRAINS INSTALLED BETWEEN O.OD%-0.60°h hrough Cell (CIS) 6FROMCUtyERDRA°IN) • t C7 31 SOLID CONCRETE SRICKS MAY BE
v SLOPE. CONNECT END OTO 3' X 3' OVERFLOW STRUCTURE PER DETAILS. Drsirrsge Area:1.80 ac R9odrfied DarCy's Equation : Q =Peak Flow through Cell (cfs) INSPECTION AND MAINTENANCE PROVISIONS FOR BIORETENTIONAREA: GROUTCONNECTIONTOSTRUCTUREI Impervious Area: 1.35 ac K_Permeabili~ofSoilMedia ~ofSoilMedia USED IN 4%4X8 OR 4XSX16 SITES.
o T. FILLW57 STONE TO REQUIRED DEPTH AND ENSURER MINIMUM 1" OF STONETO Impervious Rational C Value: 0.95 Q = KAd h A -Surface Area °f Cell (sf) 1 of Call (S~ 41 NCDOT APPROVED PRECAST J x head (ft) CONCRETE BOXES ACCEPTABLE mmr
L BMP ELEMENT: POTENTIAL PROBLEMS: HOWTO REMEDIATE TtIE PROBLEM' SEPERATE CROWN OF LEADER PIPES AND TOP OF STONE. Pervious Rational C Value: 0,30 24(3600)d d~= depth of max head (ft) ~ 8• INSTALL GEOTEXTILE FILTER FABRIC LAYER ON TOP OF 1157 STONE LAYER. Percent Impervious: 75% d = depth of soil media (tt) O IS° US1ND STRNOARD 5' CASTINGS, media R
THE ENTIRE BMP TRASHIDEBRISISPRESENT. REMOVETHETRASHIDEBRIS. OVERLAP ROLLWIDTHSATAMINIMUMOFI°ANDKEYINAFABRICAM611MUMOF Rational"C"Value:0.79 51 DOMESTIC CASTING REQUIRED NITHIN o? ~ c~ STREET RIGHT OF NAY, Q
a n ~ 1.5' INTO SOILAROUND PERIMETER OF FILTERAREA, Qn = 4 5285 dhn ° THE PERIMETER OF AREAS OF BARE SOIL AND10R REGRADE THE SOIL IF NECESSARY TO 9• INSTALL 4°THICK LAYER OF WASHER SAND OVERTOP FILTER FABRIC. ENSURE Step 2: Determine the Volume of Wat®r to Treat 24(3600)(2.5) ,r ° N
} THE BIORErENTWN CELL EROSIVE GULLIES HAVE FORMED. REMOVE THE GULLY, AND THEN PIANTA CONSTRUCTION EQUIPMENT DOES NOTTRAVEL OVER PVC PIPE TO PREVENT INV IN = 169. TO • , ~ ELEV 12° RCP ° ° ° , ° ~ ® N ~ ~ I NV OUT = 169. TO • ° ° ~ ~
w ~ ON TIMEE FE~RTIUZER APPLICATION IT ~ Rainfall to Treat: (First Flush)1 in Rating Curve for Outflow Through Media: 3888 ° • P.S.I. ° ° ° ° ° °o °o W a it
_ _ o m 10. CALCULATE TOTAL VOLUME OF FILL MATERIAL REQUIRED FOR BIORETENTION Runoff Coefficient Rv - 0.05 + 0.009° % 1 rvious ( ( ) Sts e ft Outflow cfs o CELLAND MIX MEOIATO THE %WEIGHi COMPOSITK)NAS OEI'AUED INTHE Runoff Coefficient (Rv): 0.73 iNin 3' X 3' BI ENT) FLO c~L• ° 1 ° ' ° ° ° ' ° ° , yz D
m THE INLET DEVICE: PIPE, THE PIPE IS CLOGGED UNCLOG THE PIPE. DISPOSE OF THE DESIGN SUMMARY NOTES ON THIS PLAN. INSTALL MEDIA MATERW.TOA DEPTH ff Vohrme V = ' fa ' Rv 'Drains a Area 0.0 0.00 o STONE VERGE OR SWALE pF APPLICABLE). SEDIMENT OFF SITE. of 2.5 WHILE ENSURING THAT CONSTRUCTION EQUIPMENT DOES NOT PASSOVER Runo (WQ) Ram I) ( ) ( g ) 0.5 0.05 o . mmr STRUCT E VATIO DETAIL. ° • . ° ° • ° ° • ° • ° ' ° • ° . . ° . ° 6' UP TO 12' DEEP $ ®vp 00 ° ° • ° o . ° o ' 0 0 0 . 0 0 0 0 . o . ° o . ° o • 6° 12' DVER 12' DEEP O ~ W
t- _ MATERIALALRFJIDYINSTALLED, ACCIDENTALCOMPACTtON OFMEDIA MATERIAL Runoff Vokrme (WQV): 4,753 Cf 1.0 0.10 THE PIPE IS CRACKED OR REPLACE THE PIPE. WILL RESULT IN FAILIXiE OF STRUCTURETO PERFORMADEQUATELY UPON INITIAL SCALEm NTS ~ 6' r----• 6'4° ---wl ~ ® ~ a
_ _ _ m OTHERWISE INSPECTION.ITISTHERESPONSIBILTTYOFTHECONTRACTORT011EMOVEAND 1.5 O,i5 "m DAMAGED (IF APPLICABLE). Step 3: Detemtine the Surface Area and Depth Required 2.0 0.20 f I O ® y
z = REPLACEANYMEDIAMATERIALOVERCOMPACTEDBYCONSTRUCTK)N - - - ~ EROSION IS OCCURRING IN THE SWALE REGRADE THE 9WALE IF NECESSARY TO EQUIPMENT, 2.5 0.24
a (IF APPLICABLE). SMOOTH TT OVER AND PROVIDE EROSION 11, INSTALL4" LAYER OF SOD PER BMP PLANTING NOTES SPECIFIED ON THIS Ponding Elevation Between:193.36 and 194.36 3.0 0.29 STANDARD C.B. STEP
o CONTROL DEVICES SUCH AS REINFORCED PLAN Ponding Elevation:194.35 3.5 0.34 _ _ _ _ _ TURF MATTING OR RIPRAP TO AVOID 12. ENSURE 4"PVC RI~R PIPES FOR CLEANOUTARE 45' ABOVE SOD LAYER, Ponding Dapth:11.89 in = 0.991t 4°0 0.39 3-°3 REBAAS Is' S' LONG
FUTURE PROBLEMS WITH EROSION. m INSTALL CLEANOUTSAS SPECIFIED ON THE PLAN. INSTALL 2' TALL WOODEN STAKE Required Surface Area: 4,795 sf 4.5 0.44 a' s GROUT
" STONE VERGE LS CLOGGED OR COVERED REMOVE SEDIMENTAND CLOGGED WITH FLAG TO IDENTIFY LOCATION OF CLEAWOUTS• Provided Surface Area @Ponding Depth: 5,285 sf 5.0 0.49 IN SEDNuIENT (IF APPLICABLE). STONE AND REPLACE WITH CLEAN STONE. 13. VERIFY TOP OF OVERFLOW STRUCTURE IS 12'ABOVE SOD LAYER TO ENSURE STANDARD CATCH BASIN °fio 6. 6' ~ ~IN PLacE ELEV TOP OF STRUCTURE=204.58 ISEE DETAIL • ~°p
c THE MAXIMUM ALLOWED PONDING DEPTH IS MAINTAINED. INSTALL. GRATE Step 4: Select Soil Media ~e Stage at First Flush Elevation: 3.49 ft (TOP OF CURB) STD' 30.09) °DA°°°0 • Tir/"~ ~ °1eA~84 000 000
THE PRETREATMENT AREA FLOW 15 BYPASSING REGRADE IF NECESSARY TO ROUTE ALL STRUCTUREATTOP OF OVERFLOW STRUCTURE. " PRETREATMENTARFAANDIOR FI.OWTOTHEPR~'REATMENTAREA, 14. GRADEANDINSTAILFOREBAYWITHRIPRAPASSHOWNONTHEPIANAND w OutflowthroughMediaatFirstFlushElevation:0.34cfs
L GULLIES HAVE FORMED. RESTABILIZETHEARFAAFTERGRRDING, oETAlls. Permeability (1 or2 iNhr): 2.DO inmr 4 fUday 319°60 LF A SIDE 1 B RCP 2.2' PIPES 22' 2' P/=' LONG ON a 3' PLAN ELEVATION
15. WATER AND FERTiLiZEACCORDINGLY TO ESTABLISH ROOT SYSTEM aF SOD Percent Fines Required in Mixture. a°h Fines ~ SEDIMENTHASACCUMULATEDTO 9EARCHFORTHE30URCEOFTHE ' E 1.11 x sLDPE • I6' eELDM 10P OF C.B. q. I B
AND REMC•DYTHE PROBLEM IF PRIOR TO PUTTING 814REI'ENTION AREA IN SERVICE. Step 8: Size the Underdrains } A DEPTH GREATER THAN THREE INCHES. SEDIMENT 18. ONCE VEGETATION IS ESTABLISHED IN 814RETENTION AREA, REMOVE PLUG Steo 5: Determine the Soii Media Depth 42.5LF 1 B RCP SLIP BE6ISTANT CLEATS Z ~ D• 52x •3 OA •4 J Y/
`m POpSSg IgBj~'~EMppR~ETREEAT~IEiNi~'A~REA~. FROM 8"PVC INLET PIPE IN BYPASS CB20 TO BRING CELL ONLINE Underdfd?n Sizing: ST o Depth of Sal Media (d): 30 in = 2.5 fi D =16 x [Q X n Is°'S]~0 2'-6'YIN, AEBAA COAAOSION B' NINIMUL B' aESiSTANT INV IN 18" RCP BTLF 98" RCP D 6.779. OVER 12' DEEP NA1EalaL a
t EROSION HAS OCCURRED. PROVIDE ADDRiONAL ER0510N PROTECTION SUCH AS REINFORCED TURF Duration of Ponding: 5.9 hrs 0.248 Days Flow Rate to be Carted by Underdrain: 0.34 cfs I FROM CB16)=200.50 12' NINiNON UP t0 ® )RUBBER) Q 1 NV OUT = 199.63 6' FAON LOP OF CRAB. 12'
m MATTING oR RIpRAP iF NEEDED To Tmme to Drain WQV thm 24" of Media:17,9 hrs 0.748 Days Safety Factor for Flow Rate: 10.0 } PREVENT tRITURE EROSION PROBLEMS. New Flow Rate to be Carted: 3.42 I TO STREAM} !PLASTIC) =
° SteQ 6: Select the Appropriate Overflow Structure Manning's Roughness Coeficlent: 0.011 (PVC) INV IN 18"RCP IF sraucruAE Is Ifi TrP. ELEVATION SECTION A•A GREATER iNAN 12' ~ /Y~ I !FROM C619)=198°44 OEEP,FODTING IS ® li
~ WEEDS ARE PRESENT. REMOVE THE WEEDS, PREFERABLY BY ° HAND. Slope of Underdraln Plpe: 0.005 Rift TO EXTEND 6' BEYOND 1HE STROCTOAE
+ Bottom Elevation: 196.36 Diameterof Plpe Required: 12.62 in. L ELEV BOTTOM CITY OF RALEIGH OF STRUCTURE=197.94 ,•INV OUT = 198.44 ~ yi0 a PUBLIC WORKS DEPARTMENT
_ THE BIORETENTION CELL: PLANTS ARE DEAD, DISEASED OR DETERMINE THE SOURCE OF THE PondingJWeh Elevation: 194.35 Choose 4, 6, 8, or 10" diameter PVC: 6 !n• '1. VEGETATION DYING. PROBLEM: SOILS, HYDROLOGY, DISEASE, 9MP P TlNryISODDING NOTES: Maximum Albwable Elevation: 994.86 (based on 18"Max Depth) Number of Pipes Required: 7 I TO 810-RETENTION CELL) 6• ° ° • 6' REVISIDN oarE. 5/6/86 ~
ETC: REMC•DYTHE PROBLEMAND o REPLACE PLANTS. PROVIDE A ONE TIME Weir Coefficenf: (Cw) : 3.00 I SEE C4.0 AND THIS SHEET 1 • : % ORAMN 8Y, MOP ~ 9 °o• eo °o ° • ° • ~ ° e' • ° e e o°o0 5/19/84 JTT F, OM 4°oi.° o • o ° • o 0 0• oe o°°°,° 6/8/86 NOP J
° FERTILIZER APPLICATION TO ESTABLISH THE GRASSED BIO•RETENTION CELL Flow to Bto fetention based on max flow through
c GROUND COVER IF A 501LTEST INDICATES FILTER MEDIADEPTH REQUIRED: 2.0' PVC d~charging to Cell: 0.86 cfs _ R IS NECESSARY. FILTER MEDIADEPTH PROVIDED: 2.5 Min. Weir Length (L): = Q 0.79 ft YS CATCH SAS) 2 3000 PSH CONCRETE //17/87 MOP CATCH v ~
c CwFI'/a E NATION DETAIL - DRAWING Nor TD scALE - 5/3,/87 JTT sTDBASi 30.01 {W~ ~~w SCALEm NTS a v?
w ~ THE BIORETENTION CELL: MULCH IS BREAKBVG DOWN OR SPOT MULCH IF THERE ARE ONLY RANDOM SOD SPECIES TYPE:
a ~ SOILS AND MULCH HAS FLOATED AWAY. VOID AREAS. REPLACE WHOLE MULCH TIFVYAY (T-419) HYBRID BERMAIDAGRASS Selected Welr t.en Ih 12 ft a a LAYER IF NEr~SSARY. REMOVE THE SUPPLIER CONTACT SUPERSOD, INC. (919}836-0492 9 ' ~ REMAINING MUCH AND REPLACE WITH Outflow Capacity from Overflow Weir:13 cfs 4' THICK SOD LAYER W! APPROVED 810•RETENTION GRASSES
~ TRIPLE SHREDDED HARD WOOD MULCH AT SOD INSTALLATION TO OCCUR BETWEEN MARCH 1-OCTOBER 31 Outflow Capacdy From Overflow SNrclUre Pipe: 2.5 Cis (Manning'S) ~ ro A MAXIMUM DEPTH OFTHREE INCHES. Tap of Berm Elevation:195.36
ur > ~1 I,'1~! ~i'1/ •,t! `l' Sir' ~L~~I' •!r" ~ ~ • •d 'd '•.4' ~~i L' ~b' 1 EL =193.36
„ L SOUS AND/OR MULCH ARE DETERMINE'ft~ EXTENT OF THE CLOGGING 1. PREPARE TOP 4.6' OF SOIL MEDIABED TO ENSURE LOOSE 509. PRIOR TO m m CLOGGWWTTHSEDIMENT. •REMOVEANDREt~ACEEITHERJUSTTHE SOD APPLICATION. FERTILIZEACCORDINGTOSOILTESTRECOMMENDATIONS.
L TOP LAYERSORTHEENTiREMEDIAAS 2, INSTALLSODOVERENTIREFUTERMEDIAAREA(-5000.55DOSF) t- NEEDED. DISPOSE OF THE SPOU IN AN 3, WATER ONCE DAUY FOR 8.10 DAYS TO ENSUREATTACHMENT OF ROOT IN'SITU ;.:::..~:.!~•:'•.r.';:.~'l:>s;:::';b~;.t:.';r.>;::. ~ IN•SITU !L
o _ APPROPRIATE OFFSITE LOCATION. USE SOIL •5'THICKBIO•REfENTiONFILTERMEDIA~:;.'°i:': < SOIL COMPOSITION (BY WEIGHT)
d w TRIPLE SHREDDED HARD WOOD MULCH AT SYSTEM TO SOIL MEDIA BED. • m A MAXIMUM DEPTH OF THREE INCHES. SEARCH FORTHE 50URCE OFTHE SOD MAINTENANCE: 4"THICK LAYER ` 2°,6 FINES (S~TICLAY) ~ °st ~ Q[
m SEDIMENTAND REMEDYTHE PROBLEM IF POSSIBLE. 4• MOW GRASS TO AHEIGHT OF 1•.5.2° ONAWEEKLY BASIS. ENSURE GRASS WASHED SAND . °,6 ORGANIC MATTER ~ FILTER FABRIC e® l ®®i® tj
MIRAFI FW500 0R • t~y°% •+?r (n . APPROVED EQUAL ~ ® ° 9~ e9 e Z
tit ~ ANANNUALSOILTESTSHOWSTHAT DOLOMITICLIMESHALLBEAPPUEDAS CLIPPINGBARETRAPPEDANDARENOTREAPPLI~IDISTRIBUTEDOVERTHEGRASSED w " PH HAS DROPPED OR HEAVY RECOMMENDED PERTHE 50U TEST AND MEDIA SURFACE.
~ METALS HAVE ACCUMULATED IN TOXIC SOILS SHALL BE REMOVED, 5. THE VEGETATION IN A BIO•RETENTION CELL MAY NOT BE FERTILIZED ON A ~ ~ °m THESOUMEDIA. DISPOSEDOFPROPERLYANDREPLACED REGULARBASIS, ONLYAONE-TIMEAPPLICATIONOFFERTILIZERTOESTABLISHTHE ~1j•')lI~-I~;,ti:~tc+~„,~~~~-L~. "'d^F.riJ'~:~~~3~;~•~,~~'i~~;~.r~l~L~;~ 12°TNICKLAYERW575TONE ° SEMI. m 's c2~` sC C'~,S(•:~1~^S;~:PCY,7. ,°^,~,w(i~oC'+7'•~'CS~°~l^Ql~~t°~ ` ' (FOR PVC UNDERDRAIN SYSTEM) e ~ • ® 23012 ° V
C WITH NEW PLANTING MEDIA, SOD IS ALLOWED. USE 16'4.8 FERTILIZER FORTHIS PURPOSE. C? ai a%h ''`Jr ` 7`~'r'i1'`~•;~r,~,cjj}~jG.~tiS~m~:lmcdlr'~ufk"m ~J~I:,~'I urn 89.0 ®?9~°,~/!I Ctib~''~~,••
~ x . .r'. .,rs •,rixrr ant,-o-•h~l,~t.. , ,~~.c;. EL=1 2 ? 9®yY Y'1 •A
,a .e THE UNDERDRAIN SYSTEM CLOGGING HAS OCCURRED. WASHOUT THE UNDERDRAIN SYSTEM. 6°OPVGPERFORAi'EOl1N0ERTIRAIN ®®®®i- /~I ®I1'~dT I' Cl~o'~ '1 r _
~ C-) 17L c INV. -189.70 SOIL SHwr 3.55' g004's M II V U.
w o x THE DROP INLET CLOGGING HAS OCCURRED. CLEAN OUT THE DROP INLET. DISPOSE OF o y~ z THE SEDIMENT OFF-SITE. NOTE:
B10-RETENTION FILTER = W
" THE DROP INLET IS DAMAGED REPAIR OR REPLACE THE DROP INLET. INSTALLED SYSTEM WILL MEET DESIGN SPECIFICATIONS UPON INITIAL o" OAREA PERAIS I AONCEED E PROJECT IS COMPLETE AND THE ENTIRE DRAINAGE MEDIA CROS CTIO EL. 185.65 SCALE IN FEET h. r SCALEo NTS LN N IL W
w Z co a THE RECEIVING WATERS EROSION OR OTHER SIGNS OF CONTACT THE NC DIVISION OF WATER
o w DAMAGE HAVE OCCURRED AT THE QUALITY 401 OVERSIGHT UNIT AT 919.7331786. OUTLET Q 0 10 20 40 60 60 0 co)
w o° z ~ z "e MWM V1.
$FILEL$
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