20040450 Ver 1_Complete File_20040323

?OF W H / 4 9 Michael F. Easley, Governor
`O 0 William G. Ross Jr., Secretary
r North Carolina Department of Environment and Natural Resources
p Alan W. Klimek, P.E. Director
Division of Water Quality
September 30, 2004
DWQ Project # 04-0450
Wake County
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210
Durham, NC 27713
Subject Property: Coorsdale Building, Cary, NC
Approval of 401 Water Quality Certification and Authorization Certificate per the Neuse River
Buffer Protection Rules (15A NCAC 2B .0233) with Additional Conditions
Dear Mr. Knott:
You have our approval, in accordance with the attached conditions and those listed below, to place fill
within or otherwise impact 0.03 acres of forested wetlands and 4,290 square feet (ft2) of protected riparian
buffers for the purpose of constructing the above-referenced pr perty, as described within your
application dated March 23, 2004 and received by the N.C. Division of Water Quality (DWQ) on March
23, 2004 and additional information received on April 19, 2004, May 24, 2004, August 30, 2004 and
September 29, 2004. After reviewing your application, we have decided that the impacts are covered by
General Water Quality Certification Number(s) 3402 (GC3402). The Certification(s) allows you to use
Nationwide Permit(s) 39 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 CAMA 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 Wetlands Certification Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650,
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet httgJ/h2o.enr.state.nc.us/ncwetlands
Noce Carolina
Ntura!!rm
Bruce Knott
Page 2 of 3
September 30, 2004
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:
Amount Approved Plan Location or Reference
Wetlands 0.03 acres
Neuse Buffers 4,290 ft2
2. Erosion & Sediment Control Practices
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. For borrow pit sites, the erosion and sediment control measures must be designed, installed,
operated, and maintained in accordance with the most recent version of the North Carolina
Surface Mining Manual.
d. The reclamation measures and implementation must comply with the reclamation in
accordance with the requirements of the Sedimentation Pollution Control Act.
3. 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.
4. No Sediment & Erosion Control Measures w/n Wetlands or Waters
Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum
extent practicable. If placement of sediment and erosion control devices in wetlands and waters
is unavoidable, they shall be removed and the natural grade restored within six months of the date
that the Division of Land Resources has released the project.
5. Written Stormwater Management Plan (No Further Approval Needed)
The final, written stormwater management plans (including a signed and notarized Operation and
Maintenance Agreement) dated September 29, 2004, must be implemented and the stormwater
management facilities shall be constructed and operational before any permanent building is
occupied at the subject site. The structural stormwater practices as approved by this Office as well
Bruce Knott
Page 3 of 3
September 30, 2004
as drainage patterns must be maintained in perpetuity. No changes to the structural stormwater
practices shall be made without written authorization from the Division of Water Quality.
6. 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/Wetlands 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 Adminisi<rative Hearings, 6714 Mail Service Center,
Raleigh, N.C. 27699-6714. This certification and its condition$ 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.
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 2B .0233. If you have
any questions, please telephone John Dorney at 919-733-9646 or Bob Zarzecki at 919-733-9726.
AWK/cvdw
Enclosures: GC 3402
Certificate of Completion
Sincerely,
Alan W. Klimek, P.E.
cc: USACE Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
DLR Raleigh Regional Office
File Copy
Central Files
David L. Smith, Arcadis, 801 Coporate Center Drive, Suite 300, Raleigh, NC 27607-5073
Filename: 04-0450 Coorsdale (Wake) 401NBR
Ms Cynthia Van Der Wiele
NC Division of Water Quality
2321 Crabtree Blvd.
Raleigh, North Carolina 27604-2260
Subject:
DWQ #04-0450/Wake Co
Coorsdale Bldg, Cary NC
Dear Cynthia:
Z, r=
SEP 2 9 2004
WETLMM AHD jt6WWATER Ma
ARCADIS is pleased to resubmit the 3 sets of revised storm water plans including
planting plan, a revised 401 Extended Detention Wetland Worksheet, and area
breakdown backup for the project referenced above. The comments from your
September 15TH letter have been addressed.
We have revised the size of the forebays to provide additional storage at both inlet
locations and provided the plantings (shown on attached Landscape Plan) as
requested.
If you have any questions regarding our responses to the review comments, please
call me.
Sincerely,
ARCADIS G&M of North Carolina, Inc.

David L. Smith, P.E.
Project Engineer
ARCADIS G&M of North Carolina,
Inc.
801 Corporate Center Drive
Suite 300
Raleigh, North Carolina 27607-
5073
Tel [phone]
Fax [phone]
LAND RESOURCES
Date:
29 September 2004
Contact:
David Smith
Extension:
297
E-mail:
[e-mail]
Our ref:
NC402025.0001
Copies:
Project File

The Coorsdale Building WETLANDS/ Q1 GROUP
The Dilweg Company
Cary, North Carolina AUG 3 0 2004
FILL DWQ # 04-0450 Wake County WATER QUALITY SECTION
WETLAND DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wetland detention basin system is defined as the wetland detention basin, pretreatment including forebays
and the vegetated filter if one is provided.
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wetland detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow
vegetative cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wetland detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wetland detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
If the elevation of the marsh areas exceed the permanent pool elevation, the sediment should be
removed to design levels. This shall be performed by removing the upper 6 inches of soil and stockpiling
it. Then the marsh area shall be excavated six inches below design elevations. Afterwards the stockpiled
soil should be spread over the marsh surface. The soil should not be stockpiled for more than two weeks.
When the permanent pool depth reads 0.75 ft feet in the forebay [and micro-pool], the sediment shall
be removed.
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 417.00
Sediment I?emoval El. 414.76 7
-----
-------i-- Sediment Removal Elevation 414.75 75%
Bottom E-- vation 414.00 5% - -- -- - ---- -
FOREBAY MAIN POND
Page 1 of 2

5. Wetland planting densities in the marsh areas should be maintained by replanting bare areas as needed.
Wetland plants should be encouraged to grow in the marsh areas.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
7. All components of the wetland detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible parry.
Print name: 116r'14 r"01\We-V4
Title: ?(1rOA'P'.
Address: 1/J S. Ak6rv L`, Suik 910, -Du, 1au,,?, NC 'm-7 I
Phone
Signature:
Date:
-? r2 _-
Note: The legally responsible party should not be a homeowners association unless more than 50% of the
lots have
??II blIe..?,en sold and a resident of the subdivision has been named the president.
n I
I,`too , a Notary Pu lic for the State of f?uV l?\ l ?bi?G?
County of do hereby certify hat
personally appeared before me this 2-4 day of , and acknowledge the due
execution of the forgoing wetland detention basin maintenance requirements. Witness my hand and official
seal,
®`®`6®?0oa?oaga,???
• 5\O RCS d
.: ?? CEO T,
s
Foos ............
N:`.?
My commission expires E -C
Page 2 of 2

011
DWQ Project No. 04 - 04150 0"rk_ 6:padT`I
DIVISION OF WATER QUALITY - 401 EXTENDED DETENTION (and POCKET*) WETLAND WORKSHEET
1. PROJECT INFORMATION (please complete the following information):
Project Name: ?0- Coozsaa?? edtL i>"JC4
Contact Person: T V% X> SM? rat Phone Number. (0119) 8G4 - f ZS Z
For projects with multiple basins, specify which basin this worksheet applies to: it (A.
Permanent Pool Elevation 4n, D ft.
Temporary Pool Elevation 41 e . 10 ft.
(elevation of the orifice invert out)
(elevation of the outlet structure invert in)
Permanent Pool Surface Area ¢315 sq. ft.
Drainage Area 3. to ac.
Impervious Area t . 52 ac.
Forebay Surface Area 10-70 sq. ft.
Marsh 0"-9" Surface Area 16 B2- sq. ft.
Marsh 9"-18" Surface Area 1602- sq. ft.
Micro Pool Surface Area (a&.9 sq. ft.
Temporary Pool Volume (PI +-I cu. ft.
(water surface area at permanent pool elevation)
(on-site and off-site drainage to the basin)
(on-site and off-site drainage to the basin)
(at permanent pool elevation approximately 15%)*
(at permanent pool elevation approximately 35%)*
(at permanent pool elevation approximately 35%)*
(at permanent pool elevation approximately 15%)*
(volume detained on top of the permanent pool)
SA/DA used 3. 20 (%) (surface area to drainage area ratio)*
Diameter of Orifice 2 in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project
The temporary pool controls runoff from the 1 inch rain.
The basin side slopes are no steeper than 3:1.
A planting plan for the marsh areas with plant species and densities is provided.
Vegetation above the permanent pool elevation is specified.
An emergency drain is provided to drain the basin.
The temporary pool draws down in 2 to 5 days.
Sediment storage is provided in the permanent pool.
A sediment disposal area is provided.
Access is provided for maintenance.
A site specific, signed and notarized operation and maintenance agreement is provided.
The drainage area (including any offsite area) is delineated on a site plan.
.Access is provided for maintenance.
Plan details for the wetland are provided.
Plan details for the inlet and outlet are provided.
O1 &2?r A site specific operation and maintenance agreement, signed and notarized by the resp risible party is provided (see
http://h2o.ehnr.state.nc.us/ncwegands/0andm.doe). t°f ?V. 5o 6,4, ! Is,
* Pocket Wetlands have different design parameters and are only assumed to remove 35% TSS - See pp. 19 and 20 of the NC DENR
Stormwater BMP Manual, April 1999.10% open water, 50% high marsh, 40% low marsh.

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?U, 11Y p William G. Ross Jr., Secretary
O 7 North Carolina Department of Environment and Natural Resources
r Alan Klimek, P.E., Director
Q ?
Division of Water Quality
Coleen H. Sullins, Deputy Director
?FP Division of Water Quality
ca ?rc;ina Inc September 15, 2004
DWQ # 04-0450
Wake County
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210 n?
Durham, NC 27713 cJ
Subject Property: Coorsdale Building, Cary, NC
Dear Mr. Knott:
On March 23, 2004 the Division of Water Quality (DWQ) was notified by receipt of your application. Additional
information received on April 19, 2004 and on August 30, 2004 regarding your plan to fill wetlands or waters for the purpose
of constructing an office building with parking in Wake County. Approval from DWQ is required to disturb these areas.
Please provide 3 copies of the following information and refer to the DWQ # listed above in your reply. Please show these
on maps of suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects' compliance with 15A
NCAC 211.0500.
1. The forebay for the extended detention wetland is undersized. The minimum size should be 15% of the
permanent pool surface area.
2. Please submit a planting plan for the extended detention wetland. The plan must be in accordance with the
requirements contained in the Stormwater Best Management Practices manual (DWQ 1999).
Please telephone Cynthia Van Der Wiele at 919.715.3473 if you have any questions or would require copies of our rules or
procedural materials. This project will remain on hold as incomplete in accordance with 15A NCAC 2H .0505(c). The
processing time for this application will begin when this information is received. If we do not hear from you by writing or by
fax at [phone] within three (3) weeks we will assume you no longer want to pursue the project and will consider it
withdrawn.
J Dorney
0 Water Quali C rtification Program
JRD/cvdw
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Randy King, Arcadis, 801 Corporate Center Drive, Suite 300, Raleigh, NC 27607-5073

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (htto://h2o.enr.state.nc.us/ncwetlands)
Customer Service #: 1-877-623-6748
`O?oF wArF,gQG
r
=i
O 'C
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
September 15, 2004
DWQ # 04-0450
Wake County
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210
Durham, NC 27713
Subject Property: Coorsdale Building, Cary, NC
Dear Mr. Knott:
On March 23, 2004 the Division of Water Quality (DWQ) was notified by receipt of your application. Additional
information received on April 19, 2004 and on August 30, 2004 regarding your plan to fill wetlands or waters for the purpose
of constructing an office building with parking in Wake County. Approval from DWQ is required to disturb these areas.
Please provide 3 copies of the following information and refer to the DWQ # listed above in your reply. Please show these
on maps of suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects' compliance with 15A
NCAC 2H.0500.
1. The forebay for the extended detention wetland is undersized. The minimum size should be 15% of the
permanent pool surface area.
2. Please submit a planting plan for the extended detention wetland. The plan must be in accordance with the
requirements contained in the Stormwater Best Management Practices manual (DWQ 1999).
Please telephone Cynthia Van Der Wiele at 919.715.3473 if you have any questions or would require copies of our rules or
procedural materials. This project will remain on hold as incomplete in accordance with 15A NCAC 2H .0505(c). The
processing time for this application will begin when this information is received. If we do not hear from you by writing or by
fax at [phone] within three (3) weeks we will assume you no longer want to pursue the project and will consider it
withdrawn.
l?
Dorney
Water Quali C rtification Program
JRD/cvdw
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Randy King, Arcadis, 801 Corporate Center Drive, Suite 300, Raleigh, NC 27607-5073

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (ht!p://h2o.enr.state.nc.us/ncwetiands)
Customer Service #: 1-877-623-6748

Project Nam e: Coorsdale Pond 1
Project No. DWQ 040450
SUBMITTED DESIGN: REQUIRED DESIGN.
elevations

Permanent Pool (ft) 417 3
Temporary Pool (ft) 418.1 1.1 ft. depth ok
areas
Permanent Pool SA (sq ft) 3888 2739 sq. ft. ok
Drainage Area (ac) 3.1
Impervious Area (ac) 1.52 49.0%

is7o
-
Forebay (ft2) 480 12.345679 % checkforebc,
High Marsh (ft2) 1351 34.7 % ok
Low Marsh (ft2) 1359 35.0 % v ok
Micropool (ft2) 678 17.438272 % i/ check micro
99.4856%
volumes
Temporary Pool (cu ft) 6147 5528 cu. ft. ok
other parameters
SA/DA 2.88 2.03 -
Orifice Diameter (in) 2 0.08 cfs drawdown -
Design Rainfall (in) 1 0.9 day drawdown check drawn
Linear Interpolation of Correct SAIDA***
0/t Impervious
Next Lowest 40
Project Impervious 49.0
Next Highest 50
3 ft. Permanent Pool Depth
SA/DA from Table
1.73
2.03
2.06

FILE COPY SANDS/401 GROUP
DWQ Project No. 04 - O AS O OAKG. C i n3-re A UG 3 0 2004
DIVISION OF WATER QUALITY - 401 EXTENDED DETENTION (and POCKET*) WETLAND WO ?UAL1Tys,CT(Q
N
1. PROJECT INFORMATION (please complete the following information):
Project Name : 7iAq- C roP_%'D L_r, l Li, uo„JLa
Contact Person: DAUkD SM%-t kA Phone Number: (919) SG 4 - 12°87,
For projects with multiple basins, specify which basin this worksheet applies to: tA[A
Permanent Pool Elevation
Temporary Pool Elevation
Permanent Pool Surface Area
Drainage Area
Impervious Area
Forebay Surface Area
Marsh 0"-9" Surface Area
Marsh 9"-18" Surface Area
Micro Pool Surface Area
Temporary Pool Volume
SA/DA used
Diameter of Orifice
REQUIRED ITEMS CHECKLIST
4-0 - c ft. (elevation of the orifice invert out)
4 t a . t o ft. (elevation of the outlet structure invert in)
3 8 S $ sq. ft. (water surface area at permanent pool elevation)
3.10 ac. (on-site and off-site drainage to the basin)
L. 5?_ ac. (on-site and off-site drainage to the basin)
490 sq. ft. (at permanent pool elevation approximately 15%)*
156( sq. ft. (at permanent pool elevation approximately 35%)*
13 5°t sq. ft. (at permanent pool elevation approximately 35%)*
CO-16 sq. ft. (at permanent pool elevation approximately 15%)*
(-D, 14-7 cu. ft. (volume detained on top of the permanent pool)
Z . 8$ (surface area to drainage area ratio)*
in. (draw down orifice diameter)
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If a
requirement has not been met, attach an explanation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calculations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantially delay final review and approval of the project
The temporary pool controls runoff from the 1 inch rain.
The basin side slopes are no steeper than 3:1.
planting plan for the marsh areas with plant species and densities is provided.
Vegetation above the permanent pool elevation is specified.
An emergency drain is provided to drain the basin.
The temporary pool draws down in 2 to 5 days.
Sediment storage is provided in the permanent pool.
A sediment disposal area is provided.
Access is provided for maintenance.
A site specific, signed and notarized operation and maintenance agreement is provided.
The drainage area (including any offsite area) is delineated on a site plan.
Access is provided for maintenance.
Plan details for the wetland are provided.
Plan details for the inlet and outlet are provided.
A,g. A site specific operation and maintenance agreement, signed and notarized by the responsible party is provided (see
http://h2o.ehnr.state.nc.us/ncwetiands/0andm.doc).
* Pocket Wetlands have different design parameters and are only assumed to remove 35% TSS - See pp. 19 and 20 of the NC DENR
Stormwater BMP Manual, April 1999.10% open water, 50% high marsh, 40% low marsh.
W
Ms Debbie Edwards
NC Division of Water Quality
2321 Crabtree Blvd.
Raleigh, North Carolina 27604-2260
Subject:
DWQ #04-0450/Wake Co
Coorsdale Bldg, Cary NC
Dear Debbie:
FILE COPY
WETLANDS/ 401 GROUP
AUG 3 0 2004
WATER QUALITY SECTION
ARCADIS is pleased to resubmit the 7 sets of revised storm water plans, an
Operations And Maintenance Agreement, 401 Extended Detention Wetland
Worksheet for the project referenced above. The comments from your first review
and the design review meeting have been addressed.
As discussed at our review meeting, we have revised the device to a wetland to
provide for 85% TSS removal. We also added the connection to the existing storm
collection system downstream of the project.
Thank you for your comments on the Coorsdale building. If you have any questions
regarding our responses to the construction plan review comments, please call me.
Sincerely,
ARCADIS G&M of North Carolina, Inc.
David L. Smith, P.E.
Project Engineer
Copies:
Project File
Raleigh, NC 27604-
2260ARCADIS G&M of North
Carolina, Inc.
801 Corporate Center Drive
Suite 300
Raleigh,
North Carolina 27607-5073
Tel [phone]
Fax [phone]
www.arcadis-us.com
LAND RESOURCES
Date:
23 August 2004
Contact:
David Smith
Extension:
297
E-mail:
[e-mail]
our ref:
NC402025.0001
05/05/2004 09:47 FAX. [phone] PINPOINT PROPERTIES lih 002
NVVgATi Michael F. Easley, Governor
C William G. Ross Jr., Secmtary
C7? Q,
North Carolina Departrncnt of Environment and Natural Resources
Alan Klimek, P.E., Director
P Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
April 27, 2004
DWQ # 04-0450
Wake County
CERUFIRD MAIL, - RETURN RECEIPT RE, QUESTED
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210
Durham, NC 27713
Subject Property: Coorsdale Building, Cary, NC
-Dear-M.r. Knott:
On March 23, 2004 the Division of Water Quality (DWQ) was notified by receipt of your application and additional
information received on April 19, 2004 regarding your plan to fill wetlands or waters for the purpose of constructing an
office building with parking in Wake County. Approval from DWQ is required to disturb these areas. Please provide 7
copies of the following information and refer to the DWQ # listed above in your reply. Please show these on maps of
suitable scale (for instance 1" ? 100 feet) so we can begin to determine your projects' compliance with 15A NCAC 2I3.0500.
1. The level spreader at location 1A will not provide diffuse flow through the buffer, this level spreader will create
a conveyance directly through the butter. The level spreader must be designed to flow perpendicular to the
buffer, not perpendicular to the property line. Please properly locate level spreader so diffuse flow will be
maintained through Zone 1 and Zone 2 of the buffer- Additionally, please submit the level spreader worksheet
that can be found on the 40'1/Wetlands web site, httn:l/h2o.enr.state.nc.us/newetlands.
2. Please submit worksheets needed for the wet detention pond, also please include the signed Operation and
Maintenance Agreements for the level spreader and the wet detention pond, these worksheets can be found on
the 4011Wetlands web site, http://h2b._e_ii r.statemc.us/ncwedands.
Please telephone Debbie Edwards at 919-733-9502 if you have any questions or would require copies of our rules or
procedural materials. This project will remain on hold as incomplete in accordance with 15A NCAC 2H .0505(c). The
processing time for this application will begin when this information is received. If we do not hear from you by writing or by
fax at [phone] within three (3) weeks we will assume you no longer want to pursue the project and will consider it
withdrawn.
Program
IRD/bs
cc:
Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Randy Ding, Arcadis, 801 Corporate Center Drive, Suite 300, Raleigh, NC 27607.5073
r
?T
N, C. Division of Water Qtrality, 401 Wetlands CertifleatiOn Unit.
1650 Mail Service Center. Raleigh, NC 27699.1650 (Mailing Address)
2$21 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733.6893 (fax), fhttn?/h2o.ent.stFlt .»e.uslncwctlands)
Customer Service #: 1-877-623-6748
AD
f'02=CADIS
ARCADIS G&M of North
Infrastructufe, buildings, environment communications Carolina, Inc.
601 Corporate Center Drive
Suite 300
Raleigh,
TELEFAX North Carolina 27607-5073
Tel [phone]
Fax [phone]
To: Copies: www.arcadis-us.com
Ms. Debbie Edwards Bruce Knott
NC DWQ
LAND RESOURCES
Date:
Fax: Total pages: May 24, 2004
733-6893 2

Subject:
ARCADIS Project No.: From:
Randy King
NCDWQ#04-0450 NC402025.0001
Coorsdale Building
Phone Number:
Dilweg Companies 278
If you do not receive all pages, please call to let us know as soon as possible.
Ms. Edwards,
On behalf of our client, we request that the above-referenced project continue with an active status, while
we resolve review comments.
Thank you for your help,
Randy King
THIS MESSAGE IS INTENDED ONLY FOR THE USE OFTHE INDIVIDUAL OR ENTITY TO WHICH IT IS ADDRESSED AND MAY CONTAIN
INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL, AND EXEMPT FROM DISCLOSURE UNDER APPLICABLE LAW.
If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you
are hereby notified that any dissemination, distribution, or copying of this communication isstrictly prohibited. If you have received this communication in
error, please notify us immediately by telephone and return the original message to us at the above address via the U.S. postal service.
Part of a bigger picture
MAY-24-2004 MON 14:16 TEL:[phone] NAME:DWQ-WETLANDS F. 1
05/05/2004 09:47 FAX [phone] PINPOINT PROPERTIES Q002
Michael F. Easky, Govemar
aF )NAr?9 Witham G. Ross Jr., SamvL ry
`0 OL North Carotins Depardaau of EnviMmeet 2nd Norval ltrsoU=
vi
.:{ Alan 1Clirnak, P.E., rAtrcror
P .? Division of water Quality
Coteea H. SUM-. Deputy Dlttcw?
OivW" of WUU Quality
April 27, 2004
DWQ 9 04-WO
Wake County
CERTIFIED MAIL - RE'1 URN RECRIPT MUESM
The Dilweg Companies
Attn: Bruce Knott
5310 S_ Alston Avenue, Suite 210
Durham, NC 27713
Subject Prejorfy: Coorsdale BmVhg, Cary, NC
-- -3it1t- Kaa1c
On March 23, 2004 the Division of Waler Quality (DW() was notified by receipt of your application and additional
information received on April 19, 2004 regarding your plan to fill wetlands or wants for the purpose of constructing an
office building with patldre in wake County. Approval fim DWQ is retinbed to disturb Ouse areas. Please provide 7
copies of the following Information and refer to the DWQ # listed above io your reply. Please Shaw these on maps of
I suitable scale (for instance 1,,;= 100 feet) so we can begin to determine your projects' compliance with 15A NCAC 2H .0500.
1. The level spreader at location 1A will. not provide diffuse flow through the buffer, this level spreader will create;
a conveyme davetly through the buffer. The level spreader uwst be designed to flow perpendicular to the
buffer, not petpendictdar to the property lire. Pkase properly locate level spreader so diffuse flow wilt be
maintained through Zone 1 and Zone 2 of the buffw. Additionally, please submit the level spreader worksheet
that can be found on the 401/Wedands web site, :/ state _nsMcwetlanids.
r 2_ Please subunit worksheets needed for the wet detention pond, also please include the signed Operation and
Mai aenance Agreements for the level spreader and the wet detention pond, these wotrksheets can be touted on
the 4011Wedands web sir., lmnJTh2o eutr.state.nc.usl w tJSl>
Please telephone Debbie Edwards at 919-733-9502 if you have any questions or would require copies of our rules or
rum-Aural materials. This project will mmam on bold as incomplete in accordance with 15A NCAC 2H .0505(e). The
processing blurs for this application will begin when this information is received. If we do not hear from you by writing or by
} fax at [phone] within three (3) weeks we will assume you no longer want to pursue the project and will comider it
withdrawn.
CC:
Raleigh DWQ Regional office
Raleigh Corps of Engweeas
Central Fries
File Copy
Randy King, Arcadis, 801 Corporate Center Drive. Suitt: 3oo, Italeigb, NC 27607-5073

N. C. AivWm of Wamr Quality, 401 Wetlands CeWfiC2d0R Unit,
1&0 Mail Servloo Canter. Ratd* NC 27699-t 65th ([Nailing Ad&=)
2321 cnbow 8W., Ra dA NC 276116-2MO (l oesdw)
[phone] (phnae). 919-733.6893 (tax), (htmJ/h?a er,r stW m.ua%cv+dands)
CanooK Servteelt: 1-877-623-6748
MAY-24-2004 MON 14:17 TEL:[phone] NAME:DWO-WETLANDS P. 2
`O.0v Y...,?,9QG
? r
o ?
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
April 27, 2004
DWQ # 04-0450
Wake County
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210
Durham, NC 27713
Subject Property: Coorsdale Building, Cary, NC
Dear Mr. Knott:
On March 23, 2004 the Division of Water Quality (DWQ) was notified by receipt of your application and additional
information received on April 19, 2004 regarding your plan to fill wetlands or waters for the purpose of constructing an
office building with parking in Wake County. Approval from DWQ is required to disturb these areas. Please provide 7
copies of the following information and refer to the DWQ # listed above in your reply. Please show these on maps of
suitable scale (for instance 1" = 100 feet) so we can begin to determine your projects' compliance with 15A NCAC 2H.0500.
1. The level spreader at location lA will not provide diffuse flow through the buffer, this level spreader will create
a conveyance directly through the buffer. The level spreader must be designed to flow perpendicular to the
buffer, not perpendicular to the property line. Please propenly locate level spreader so diffuse flow will be
maintained through Zone 1 and Zone 2 of the buffer. Additionally, please submit the level spreader worksheet
that can be found on the 401/Wetlands web site, http://h2o.enr.state.nc.us/ncwetlands.
2. Please submit worksheets needed for the wet detention pond, also please include the signed Operation and
Maintenance Agreements for the level spreader and the wet detention pond, these worksheets can be found on
the 401/Wetlands web site, http://h2o.enr.state.nc.us/ncwetlands.
Please telephone Debbie Edwards at 919-733-9502 if you have any questions or would require copies of our rules or
procedural materials. This project will remain on hold as incomplete in accordance with 15A NCAC 2H .0505(c). The
processing time for this application will begin when this information is received. If we do not hear from you by writing or by
fax at [phone] within three (3) weeks we will assume you no longer want to pursue the project and will consider it
withdrawn.
Program
JRD/bs
cc
Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Randy King, Arcadis, 801 Corporate Center Drive, Suite 300, Raleigh, NC 27607-5073
Y?
ugp* ;.
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (htta://h2o.enr.state.nc.us/ncwetlands)
Customer Service #: 1-877-623-6748
ARCADIS
infrastructure, buildings; environment, communications
Transmittal Letter
To: Copies:
Ms Cyndi Karoly Bruce Knott
NC Division of Water Quality
2321 Crabtree Blvd.
Raleigh, NC 27604-2260
ARCADIS G&M of North
Carolina, Inc.
801 Corporate Center Drive
Suite 300
Raleigh,
North Carolina 27607-5073
Tel [phone]
Fax [phone]
www.arcadis-us.com
LAND RESOURCES
From: Date:
Randy King 16 April 2004
Subject: ARCADIS Project No.:
DWQ #04-0450/Wake Co NC402025
Coorsdale Bld;;, Cary NC
We are sending you:
® Attached ? Under Separate Cover Via the Following Items:
? Shop Drawings ® Plans ? Specifications
? Prints ? Samples ? Copy of Letter
? Other:
? Change Order
? Reports
Copies Date Drawing No. Rev. Description Action"
7 4/16/04 C1.02 Grading, Drainage, EC

EWDS 1401 GROUP

APR 1. V 2004
WATER Qb
"
k1i
Y SECTION

Action*
? A Approved
? AN Approved As Noted
? AS As Requested
? Other:
? CR Correct and Resubmit
? F File
? FA For Approval
? Resubmit Copies
? Return Copies
? Review and Comment
Mailing Method
? U.S. Postal Service 1" Class
? Certified/Registered Mail
? Other:
® Courier/Hand Delivery ? FedEx Priority Overnight ? FedEx 2-Day Delivery
? United Postal Service (UPS) ? FedEx Standard Overnight ? FedEx Economy
Comments: Ms Karoly, Attached please find 7 copies of the revised grading plan for the above referenced project. We have
adjusted the configuration and location of the rip-rap aprons and level spreader, per your comments dated March 31, 2004. I
hope this resolves your concerns. If you have additional questions or need additional information, please feel free to call me; or
I would be glad to meet with you to discuss. Thank-you for your help with this matter, Randy King
Page:
9:Nnrt402025\lnrldwq rev transmittal letter.doc 1 /2
0ARCADIS
Infrastructure, buildings, environment, communications

North Carolina Division of Water Quality
401 Wetlands Certification Unit MAR ? ?? ?fl dq
1650 Mail Service Center
Raleigh, NC 27699-1650
t;
Subject:
Pre-Construction Notification Application Form
Proposed Coorsdale Building, Cary, Wake County, North Carolina
Dear Sir/Madam: U
Attached are one signed original and six copies of the Pre-Construction Notification
(PCN) application form for the above referenced project for Buffer Rule approval.
There are also impacted wetlands on this site but they fall below the threshold for
Corp approval. Attached to the PCN application form is a USGS topographic map
showing the site location, a map showing the onsite soils and a map showing
proposed conditions. An application fee of $200.00 is enclosed with this submittal.
Please let us know if you have any questions regarding this application.
Sincerely,
ARC G&M of North Carolina, Inc.
Randy King, P.E.
Project Manager
Copies:
Bruce Knott/The Dilweg Companies
ARCADIS G&M of North
Carolina, Inc.
801 Corporate Center Drive
Suite 300
Raleigh,
North Carolina 27607-5073
Tel [phone]
Fax [phone]
www.arcadis-us.com
LAND RESOURCES
Date:
23 March 2004
Contact:
Randy King
Extension:
278
E-mail:
[e-mail]
our ref: /
402025.0000
Part of a bigger picture

MAR r J' r' 4
Office Use Only: Form Version May 2002
USACE Action ID No. DWQ No. ' A f) X L
(If any particular item is not applicable to this project, please enter ynZAppl cable" or "N/A".)
1. Processing FILE
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: N/A
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name: Bruce Knott
Mailing Address: The Dilweg Companies
5310 S. Alston Avenue Suite 210
Durham, NC 27713
Telephone Number: [phone] Fax Number: [phone]
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Randy King
Company Affiliation: ARCADIS
Mailing Address: 801 Corporate Center Drive, Suite 300
Raleigh, North Carolina 27607
Telephone Number: [phone] Fax Number: [phone]
E-mail Address: rking@a,arcadis-us.com
Page 5 of 13
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Coorsdale Building
2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A
3. Property Identification Number (Tax PIN): 0762678799
4. Location
County: Wake Nearest Town: Cary
Subdivision name (include phase/lot number): N/A
Directions to site (include road numbers, landmarks, etc.): From Raleigh: USI-64 South
towards Sanford to Cary Parkway. Exit US1-64 South onto Cary Parkway. From ramp, turn
right onto Cary Parkway (north). Coorsdale Drive will be the first road on the right. Project
is located at southeast corner of Cary Parkway and Coorsdale Drive.
5. Site coordinates, if available (UTM or Lat/Long): UTM 17,701334E, 3958771N
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres): 3.46
7. Nearest body of water (stream/river/sound/ocean/lake): Lynn Branch
8. River Basin: Neuse
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.ne.us/acbnin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: The site is currently wooded. Residential neighborhoods
border the property to the north and east. US 1-64 borders the property to the south and CarX
Parkway borders the property to the west.
Page 6 of 13
10. Describe the overall project in detail, including the type of equipment to be used: The
project will construct an access road and an office building with parking. The proposed
impact will consist of installation of an access road, a retaining wall, storm drainage and fill
materials. Construction equipment to be used throughout the project will generally consist of
excavators, dozers, trucks and other miscellaneous equipment. Construction limits will be
delineated using tree protection fence. Erosion control measures will be provided to prevent
downstream sedimentation.
11. Explain the purpose of the proposed work: The purpose of the project is to construct an
office building with associated parking and access road.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
Wetland limit based on delineation by Amanda Jones, Corps of Engineers, Spring 2003
Stream delineation based on field visit by Steve Mitchell, NCDWQ, Spring 2003
Wetland and stream delineations surveyed by ARCADIS, Spring 2003
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
None known.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
Page 7 of 13
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
Provide a written description of the proposed impacts: Proposed impacts include
constructing a road and storm drainage as well as adding fill into an area of wetlands.
Additional impacts include adding fill in a portion of the Neuse River Buffer.
2. Individually list wetland impacts below:
Wetland Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
(yes/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
1 Fill 0.03 No 35 Forested wetland

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://www.fema.,lov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: 0.04 acres
Total area of wetland impact proposed: 0.03 acres
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
(indicate on map)
Type of Impact* Length of
Impact
(linear feet)
Stream Name** Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please specify)
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
www.lnapgUest.com, etc.).
Page 8 of 13
Cumulative impacts (linear distance in feet) to all streams on site
N/A
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:
Open Water Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Name of Waterbody
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)
N/A

* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ® uplands ? stream ? wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): Pond area will be excavated and graded by construction
equipment excavators and dozers)
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): Local stormwater requirement
Size of watershed draining to pond: 3.1 acres Expected pond surface area: 4085 sf
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
Impacts to the jurisdictional stream and wetland cannot be avoided, except by choosing a no-
build alternative. The proposed building has been shifted as far west as possible toward Cary
Parkway. The has been configured such that impacts are kept at a minimum. The access
road will serve current and future development, reducing the need for future impacts. A
retaining wall is being constructed to minimize impacts to the wetlands and the stream buffer.
Stream buffer impacts shall be limited to grading and revegetation in Neuse River Buffer Zone 2
in accordance with 15A NCAC 02B .0233 4b. There will be no disturbance to Zone 1 of the
Neuse River Buffer.
Page 9 of 13
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on March 9, 2000, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
ht!L)://h2o. enr. state.nc.us/ncwetlan.ds/strmgide.btml.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
N/A
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http:/./h2o.enr.state.nc.us/wrp/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet):
Amount of Riparian wetland mitigation requested (acres):
Amount of Non-riparian wetland mitigation requested (acres):
Page 10 of 13
Amount of Coastal wetland mitigation requested (acres):
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes E] No
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ? No ?
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ? No ?
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify V
Yes ® No ? If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 0 3
2 4290 1.5
Total 4290
* Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or
Page 11 of 13
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or.0260.
XI. Stormwater (required by DWQ)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
There are no impervious areas on the existing 3.46 acre parcel. The proposed parcel will
include 1.54 acres of impervious area. The storm drainage system will collect and carry all
stormwater to a wet detention pond. This pond is designed to comply with the State
requirements for Best Management Practices (BMPs). The pond will store stormwater runoff
from the 1-year storm and limit the discharge to pre-development levels. The pond will also
treat the runoff from the first 1" of rainfall and discharge it over a period of 2-5 days. The pond
will reduce nitrogen in accordance with the Neuse River nutrient reduction rules. The
stormwater from the pond will be discharged to a level spreader before entering the Neuse
Buffer.
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
The wastewater generated from this project will discharge through a 6" service line that
connects to an existing manhole located in Coorsdale Drive.
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ? No
Is this an after-the-fact permit application?
Yes ? No
XIV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
Page 12 of 13

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins,Weputy Director
Division of Wate ,.Quality
March 31, 2004
DWQ # 04-0450
Wake County
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
The Dilweg Companies
Attn: Bruce Knott
5310 S. Alston Avenue, Suite 210
Durham, NC 27713
Subject Property: Coorsdale Building, Cary, NC
Dear Mr. Knott:
On March 23, 2004 the Division of Water Quality (DWQ) was notified by receipt of your application regarding
your plan to fill wetlands or waters for the purpose of constructing an office building with parking in Wake
County. Approval from DWQ is required to disturb these areas. Please provide 7 copies of the following
information and refer to the DWQ # listed above in your reply. Please show these on maps of suitable scale (for
instance 1" 100 feet) so we can begin to determine your projects' compliance with 15A NCAC 2H .0500.
1. The stormwater discharges at the location on the plans labeled IA and level spreader will not provide
diffuse flow through the buffer. Please remove riprap out of Zone 2 of the Neuse Riparian Buffer.
Please place level spreader out of Zone 2.
2. All stormwater must maintain diffuse flow through Zone 1 and 2 of the Neuse Buffer
Please telephone Cyndi Karoly at 919-733-9721 if you have any questions or would require copies of our rules or
procedural materials. This project will remain on hold as incomplete in accordance with 15A NCAC 211.0505(c).
The processing time for this application will begin when this information is received. If we do not hear from you
by writing or by fax at [phone] within three (3) weeks we will assume you no longer want to pursue the
project and will consider it withdrawn.
Program
JRD/bs
cc: Raleigh DWQ Regional Office
Raleigh Corps of Engineers
Central Files
File Copy
Randy King, Arcadis, 801 Corporate Center Drive, Suite 300, Raleigh, NC 27607-5073
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/ncwedandsl
Customer Service #: 1-877-623-6748

Sincerely,
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DWQ# 0 N ?y Date Who Reviewed:
Plan Detail Incomplete `
? Please provide a location map for the project.
? Please show all stream impacts including all fill slopes, dissipaters, and bank stabilization on the site plan.
? Please show all wetland impacts including fill slopes on the site plan.
? Please indicate all buffer impacts on the site plan.
? Please indicate proposed lot layout as overlays on the site plan.
? Please indicate the location of the protected buffers as overlays on the site plan.
? Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan.
? Please provide cross section details showing the provisions for aquatic life passage.
? Please locate any planned sewer lines on the site plan.
? Please provide the location of any proposed stormwater management practices as required by GC
? Please provide detail for the stormwater management practices as required by GC
? Please specify the percent of project imperviousness area based on the estimated built-out conditions.
? Please indicate all stormwater outfalls on the site plan.
? Please indicate the diffuse flow provision measures on the site plan.
? Please indicate whether or not the proposed impacts already been conducted.
Avoidance and/or Minimization Not Provided
? The labeled as on the plans does not appear to be necessary. Please eliminate the or provide additional
information as to why it is necessary for this project.
? This Office believes that the labeled on the plans as can be moved or reconfigured to avoid the impacts to the
Please revise the plans to avoid the impacts.
? This Office believes that the labeled on the plans as can be moved or reconfigured to minimize the impacts to the
Please revise the plans to minimize the impacts. Level P
Se Yernr)J
The stormwater discharges at the location on the plans labeled _ A will not provide diffuse flow through the buffer beewAse
le re 'se plan and pr vi talc atio to s at di a w' be ac 'eved e e is t s bl t ac 'ev now h th n ' e uff t e e ess to vid
ce ve nutrients a stormwate can e disc r. d
Other A <, t?J rn
El The application fee was in fficient because over 150 feet of stream and/or o er 1 acre of wetland impacts were uested. Please
provide $ . This additional fee must be received before your applic on can be reviewed. ?????
? Please complete Section(s) on the application. (?C" Q
? Please provide a signed copy of the application. P
le??? s ?e
? Please provide copies of the application, copies of the site plans and other supporting information.
Mitigation
? of compensatory mitigation is required for this project. Please provide a compensatory mitigation plan. The
plan must conform to the requirements in 15 A NCAC 2H .0500 and must be appropriate to the type of impacts proposed.
? Please indicate which 404 Permit the USACE would use to authorize this project.
DWQ# 0'+:-(
Date
Who Reviewed:
Plan Detail Incomplete
? Please provide a location map for the project.
? Please show all stream impacts' including all fill slopes, dissipaters, and bank stabilization on the site plan.
? Please show all wetland impacts including fill slopes on the site plan.
? Please indicate all buffer impacts on the site plan.
? Please indicate proposed lot layout as overlays on the site plan.
? Please indicate the location of the protected buffers as overlays on the site plan.

? Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan.
? Please provide cross section details showing the provisions for aquatic life passage.
? Please locate any planned sewer lines on the site plan.
? Please provide the location of any proposed stormwater management practices as required by GC
? Please specify the percent of project imperviousness area based on the estimated built-out conditions.
? Please indicate all stormwater outfalls on the site plan.
? Please indicate the diffuse flow provision measures on the site plan.
? Please indicate whether or not the proposed impacts already been conducted.
Avoidance and/or Minimization Not Provided
? The labeled as on the plans does not appear to be necessary. Please eliminate the or provide additional
information as to why it is necessary for this project.
? This Office believes that the labeled on the plans as
. Please revise the plans to avoid the impacts.
? This Office believes that the labeled on the plans as
Please revise the plans to minimize the impacts.
can be moved or reconfigured to avoid the impacts to the
can be moved or reconfigured to minimize the impacts to the
? The stormwater discharges at the location on the plans labeled will not provide diffuse flow through the buffer because
Please revise the plans and provide calculations to show that diffuse flow will be achieved through the entire buffer. If it
is not possible to achieve diffuse flow through the entire buffer then it may be necessary to provide stormwater management
practices that remove nutrients before the stormwater can be discharged through the buffer.
Other
? The application fee was insufficient because over 150 feet of stream and/or over 1 acre of wetland impacts were requested. Please
provide $ . This additional fee must be received before your application can be reviewed.
? Please complete Section(s) on the application.
? Please provide a signed copy of the application.
? Please provide copies of the application, copies of the site plans and other supporting information.
Mitigation
? of compensatory mitigation is required for this project. Please provide a compensatory mitigation plan. The
plan must conform to the requirements in 15 A NCAC 2H .0500 and must be appropriate to the type of impacts proposed.
? Please indicate which 404 Permit the USACE would use to authorize this project.
copyright ©2003
KEY DESCRIPTION ELEVATION 5' TOP OF
EMBANKMENT TOTAL IMPERVIOUS AREA = 1.54 AC NOTES:
1 TOP OF EMBANKMENT EL 421.00 WATERSHED: SWIFT CREEK 1. SEE LANDSCAPING PIAN FOR EXTENDED DETENTION WETLANDS
2 RISER INLET RIM El. 418.10 PLANTING PIAN AND SEEDING SCHEDULE. 1 RISER 3
3 i-2" DID DIP DRAW-D( 11A, DIP DRAW-DOWN PIPE 90' ELBOW
Q BOTTOM OF RISER EL 414.50 1 AND SECTION OF PIPE. :CTION OF PIPE. SECURE PIPE TO RISER 2 1 8
WITH GALVANIZED METAL ALVANIZED METAL STRAPPING.
® INVERT OF INLET EL 417.00 6 SHELF fOREBAY BERM I I
TTOM OF BASIN EL 412.00 SKIMMER ASSEMBLY AS MANUFACTURE
~ 7 -1 BY WARREN FAIRCLOTH (919) 32 8 81 1 SEE ANTI-SEEP COLIAR DETAIL
OF BARREL 30" © DIAMETER COMPACTED STRUCTURAL FlLL IN BER 3
t
LENGTH SLOPE AND 56' Q 15.2X .AND 1.0' MIN. BASE THROUGHOUT POND. 1 © 1 INV. OUT OF BARREL INV =406.00 NORMAL WATER SURFACE ELEVATIO 4
8 EMERGENCY SPILLWAY 1 EL 418.70
1 y,QIE;
10 SEDIMENT REMOVAL DEPTH EL 414.00 g POND PERMANENT POOL AREA SHALL BE GRADED AS 10 I I ASPHALT COATED 6 10 I CMP
1 BERM El. 417.00 3 _ 3 3 SHOWN MEETING DEPTH RAT10S AS REQUIRED PER -----------------=-3~
1 NC6ENR BMP STORMWATI:R EXTENDED DETENTION 1 1 WETLANDS. SEE GRADING PIAN FOR MORE INFO. 5
5 1 7 3 1.1
r ~
RISER BASE
CUT-OFF TRENC 3'
2' SCALE: NONE NONE
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~ ~ ' ~~r i ~ ~i"17~ _ U ~ / - ~i !1'1 ~ ~ l,i,t 4J~"C3~ \ ` i ~ /I ~ f ~ 1 y Lu Z / / ~ i ~ ! C 22 MAR D4 REVISED PER TOWN OF CARY COMMENTS
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/ f ~C~ /r~Q~~~~~~ 0 ~ti - " W ' ° , A 02 JUNE 03 ISSUED FOR REVIEW
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HANDWHEEL 12 ABOVE SLAB ! ; ~ ~ - , ~ j, ~ ~ r / ~ ~ - ~....-'"424 f / / ~ ~ ~ / ~ i ! i i
D.I. FRAME do GRATE / ~ ~ ~ ~ / 6 THICK CONC. SLAB, REINF. 5x5 (INSIDE DIM.) n ~ r ~ l / / 426 ~ 1 t , / ~ / / ~
W 4 BARS ®8" O.C. I:.W. N„DOT STD. 80.16 ~ t p ~/y/ Vii, 1 716 F~f!(b 1 i , f' 42a Not for Construction
1 i ~ 41; ~ ~ ~ ~ ~ 430 / i / ~ ~ / ~ ~ /
EXTEND BRICK TO FORM 8x8 ~ ~ ~ RARY 15 CSP CROSS PIPE , R ~ r
COLUMNS AT CORNERS • . . N ~ ~ r. ~ ' ~ /
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" x 2' wA MAN sERIES 3000 ~ ~ ~ ¢ ~ ~ c ° - - ~ i 2 1 TER SLUICE GATE INSTALLED INSIDE RISER. . ~ 1
9 x9 x1 GONC. BASE _ ~ ENSURE DRNNAGE TO SLUICE GATE. PEN SLUICE GATE 2 AND ~ •a ° •
_ t•~ COVER WfTH HARDWARE CLOTH _
AND STONE TO ALLOW DRNNAGE - - ~ / ~ ~ l ~ cfl
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~4 REBARS ON 1 CENTT]tS, m U ' ` Vii p 3a . , e TYPICAL 4 - - ~ ~ ' _ I ~ I ~ % ~ G & A9 of North Carolina, !r?c. I I ~ . -
a , o v r~-,-.~---~~:-z-,- _ f, WWW.ARCADIS-US.COM
~ ~ ALL SI ~E PP~(I~ ~U(3014'iSICN ~.;.;;;~'.4`•'" 3 DES TO HAVE OPENING ~ Y ~ _ _ _ I I ~ ~ ~ , I ~ 801 Corporate Center Drive, Suite 300
o to °NA5E 1, r.- I I ~ y _ \ ~ ~ Raleigh, NC 27607-5073
N N ~ ~ _ 1- ~ I I ~ , a _ Tel: [phone] Fax: [phone]
dN " „O N 2 (A d' r Q.
N ~ I I ' ` ` 0~~ / _ CAR ,
3 3 1 DIP DRAW-DOWN PIPES 90' ELBOW AND _ - . 1 ~ _
3 0 1 _ - • SECTION OF PIPE SECURE PIPE TO RISER - 440
„ WITH GAIVINIZED METAL STRAPPING. ~ ~ ~ ~ 440 • , - J 442 _ ~ SEAL
E o ~ r . 442--- ii 4 _ l ~ ` 442 2011I /I AA ° t Ah t ~ R " i T7 ~
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~ - _ ~ SEAL NOT VALID UNLESS SIgJED AND DATED
~ 03-SP.~03 - - _ PROJECT MANAGER 6EPARTMENT MANAGER
d O _o , \ ~ I !n c~ i ~ , ~ - _ ~ R KING R KING APPROVED
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Engineering Date 00000 B HARRIS ~
RISER SIDE VIEW p w r o v o ` Q au Iwo CYw ow c PROJECT NUMBER DRAWING NUMBER
o 1 ~~zcat~r Q Q= 1Kcszx z
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ADJACENT OR ACROSS STREET STREETSCAP RAKE 10 LBS./ACRE SWfTCHGRASS (PANICUM VERCATUM) , I. 7 LAND USE CLASS FFER TYPE ~PIl~ - . •a1 ~ f 1~1N..r'~F$ i d P
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SOIL PREPARATION , ~ SHRUBS - 2 HIGH 0 INSTALLATION, 3 HIGH IN 3 YEARS ~ ~ \ ~ ~ \ ~ ~ ~
© r I MINIMUM ACCEPTABLE S01. AMENDMENTS ~ \ ~ EACH PARKING SPACE I .r r ~ IAF (it) ~ ~ ~
QTREES - 1 CANOPY TREE TRUNK W/IN 60 OF SEEDBED PREPARATION '°~~.1 1 ; / \ CF (12)
FOUNDATION PWVTING: 1QTREES - 8 HIGH, 2 CALIPER ~I / /
1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP OVER ADVERSE j P, ©SHRUBS - 24 HIGH SOIL CONDITIONS, IF AVAILABLE. ~ ` P ~ r
r`
2. RIP THE ENTIRE AREA TO 6 INCHES DEPTH , R .

3. REMOVE ALL lAOSE ROCK ROOTS AND OTHER OBSTRUCTIONS LEAVING SURFACE ' ~ ~ CF 2 REASONABLY SMOOTH AND UNIFORM. / ( ) (2) CF 4
PLANTING DETAILS ! _
4. APPLY AGRICULTURAL TIME, FERTILIZER, AND SUPERPHOSPHATE UNIFORMLY AND MIX ; ~ - - - - - - SITE SIGNAGE CJ (12) QS
Shrub, Groundcover, and Perenrnal Planting ~ WRH SOIL SEE BELOW . 1:1~ f ( ) r~ NOTE: BANKS ROSE TRAILING SEE NOTE E 04 OCT 04 REV. PER T~ & NCONR COMMENTS OVER RETNNING WALL. PLANT
f~ -PULVERIZED FlRM REASONABLY UNIFORM SEEDBED , . ~7 ICB (11) 6' O.C. TOP OF WAIL ICB (s) 0 19 AUG 04 REVISED PER TOWN OF CARY COMMENTS
5. CONTINUE T1llAGE UNill A WELL , 5~:.:::~:. ~ P~ IS PREPARED 4 TO 6 INCHES DEEP. <~.;;'s,,. CF .Y.1 + CF R R R C 22 MAR 04 REVISED PER TQWN OF CARY COMMENTS
f~ Q •R R R
` ~ ~ I 6. SEE ON A FRESHLY PREPARED SEEDBED AND COVER SEED LIGHTLY WfTH SEEDING ~ c, , B 01 MAR 04 REVISED BUILDING AND PER COMMENTS
EQINPMENT OR CULTIPACK AFTER SEEDING. ' ~ / ~ A 02 JUNE 03 ISSUED FOR RENEW
l F sETraPaFROOTa«urrA~ LNG AND ANCHOR MULCH. PR GE ' 1 7. MULCH IMMEDIATELY AFTER SEED ~
RIpSNFD GARDE FaD BuIBAP oowN lNT W/ DS ~ NG , ~ ICB 36 R .ISSUED DATE REVISION DESCRIPTION QP QP ~
~01"~ SEtTOPOF~u SEEDED AREAS AND MAKE NECESSARY REPNRS OR RESEEDINGS Wli}iIN ~ S O Q~- FLUSNWRHFBBSIIED 2sS1BtEDDFABARKNDIpI•DONOT 8. INSPECT All ~ y CJ 6
GRADE PLAt:EAGA16TiRUNK THE PLANTING SEASON IF POSSIBLE. IF STAND SHOULD BE OVER 60~ DAMAGED, r ? 1_!
SEEDING RATES, ' ~ l o°~ I BACKRLL•ARENOTNETOP REESTABLISH FOLLOWING ORIGINAL LJME, FERTILIZER AND 1 ICB erxcoApowBBtcr•tx ` CONDWIERGROx11P1ANT•PULIpOTS i ~ 1 P ICB 7 ~ ~ ; O
coL~osTEDalaxoBARK atraFau2,oRartsoES f oaoTNERSwueLE 9. CONSULT CONSERVATI0~1 INSPECTOR ON MAINTENANCE TREATMENT AND FERTILIZATION
OAGANICMATTEROR FBiLIPEDESRdINIDERROOTBALL Jµ~R PERMANENT COVER IS ESTABLISHED. M PROVIDE MAUVE Sql WRH ~ Y , f CF UP UP
A MINB~tIAA OF 5% G AurTEA - :.~x,.a~js. :~~K::~~ 4~...~. troEEP•cuLmraE _ = f AR
~ ; - APPLY: AGRK;IILTURAL L1MESi0NE 2 TONS/ACRE BREAxUP AsSINGIEBEDWIIEN FERTI.IZER = 10 -10 - 10 ANALYSIS AT 800 - 1, 000 IBS. /ACRE CF Not for Construction
~ EDGEOF PUNiINGfd~'LES TE =500 IBS. ACRE OF 20X ANALYSIS SUPERPHOSPHATE PLMlltxc : , , ~ ~FORtARCERSNruIe / P ICB 20 ICB 20 P
Prr - Rooreaus,~aKEa• MULCH = 2 TONS X. 80 BALES) SWILL GRNN STRAW/ACRE ' .Y - ~ ~ I ~E <!'t,a., c't'~'.t~ ' ..'cf. .'Vi'i..` ` ~ I
, ~ ~ ~ DEEPERTwwROOT =TACK WTIH IKXIID ASPHALT AT 400 GALLONS/ACRE OR EMULSIFED ~ " ` 1 - ' -
- ASPHALT AT 300 GALLONS ACRE r ~ - AN7~ - t. Alahri88abalaoidowafte c i,
' ~ rrarae«tbarw>tr.oM ~ i OJE TITLE y,, CF PR CT
.o.tA.e~.rwrrslsttlr 1, AtbryistplWlgrrr ~ a is ' a ~
A~ifNMiMaf ~r~w?x.>• S l ' Ii CF QP
x. eal.rallAleeasBaetWtea . ~ PaoraP~wm. aoBan~a , ~ ~ (30) I ~ cJ (30) ~
anaded ae reoofnmended. a snexPre~areBonotee~ta ~yp~ p~~~~~
ltighly pretetred to indNiry dug ~ 111i 1it711lL>aL110Lk d holes..
AUG 15 - NON i TALL Fly 300 IBS/ACRE
NOV 1 -MAR 1 TALL FESCUE AND ABRUZZI RYE 300 IBS/ACRE OR ANNUAL RYE MG MONDO GRASS PLANTED BENEATH OVERHANG, r; CF
- FESCUE OR HAi~ FESCUE 300 LBS ACRE MAR 1 APR 15 TALI / All SIDES. 4" METAL EDGE REQUIRED ACROSS ( I WEST 51DE OF BLDG. TO CONTAIN MONDO SPREAD.) I AR
MAR 1 - JUL 15 HULLED COMMON f~RMUDA GRASS 300 LBS ACRE . / QP QP << S
OR HYB~D BERMUDA GRASS. 200 LBS/ACRE ;f= ':~:,-r•:~:
OR CENTIPEDE GRASS ~f`° f ICB 20 <<`~
Au. ~ ZOYSIA GRASS f RE~Err OR 5T. AUGUSTINE GRASS ' ICB (20) ( ) <f: CS ~
- WEEPING LOVE GRASS 25 LBS ACRE ~ t>ETAano; APR 15 JUN 30 / a ICB 5 ICB 5 • t
OR BAHIA GRASS F LA 25 { CF
JUl i - AUG 15 TAIL FESCUE AND 120 LBS/ACRE { t~
' ' ' ~ ~'~BROWNTOP MILLET 35 LBS ACRE / , > --T--~- SHEET TITLE Ice (21) A A A A A
Town of Ca Communi A arance Manual ~#~OR SORGHUM-SUDAN HYBRIDS 30 IBS/ACRE ry ty ppe P T SIGNA IAN•BB ~ A A A A A A A A - A `
W/ SOAPING EE
~
PLANTING DETAILS LANDSCAPE MAINTENANCE PLAN: _ - - - - { a' a a
Tree Planting ~ - - - ~ THE OWNERS OF THE PROPERTY AND THEIR AGENTS, HEIRS OR ASSIGNS `.1 _ ~t f h ~ a / ~ ~ ~ ~ ICB (21) ~
SHAH BE RESPONSIBLE FOR THE INSTALLATION, PRESERVATION AND : ~ r`-~- ~ ~ 700' 700' SIGHT TRUWGI.E
NGS AND PHYSICAL FEATURES SHOWN ON THIS 1 ~ PRUIE AIRY TO REMOVE ANY BROKEN, DEAD OR WVNiENANCE OF ALL PLANTI _ ,
olsEASEOwoaDwMB.EPRESeRwNCFO~+AND PLAN. THE OWNERS SHALL BE RESPONSIBLE FOR ANNUAL MANTENANCE OF c'wa"crEl'oF'AEE'°°N°rcurLEwE~oo"DT THE VEGETATION TO INCLUDE BUT NOT LIMffED TO: uD 7 uD uT (5)
pRUNEx0A0ERTOREDUCECANOPY92E CF (1O)
r i A. FERTILIZATION: FERTILIZE LAWNS TWICE PER YEAR (FEBRUARY 15-MARCH 250 SIGHT TRIANGLE I I NATURAL SOIL lxE
15 AND AGAIN SEPT. 1-OCTOBER 31 ACCORDING TO SOIL TEST. FERTILIZE Raor cROwM WARM SEASON GRASSES ONCE DURING GROWING SEASON PER SOIL TEST.
TOP of BALI As ouc PROJECT AND SITE ENTRY FEATURES
O OUT AND REdOYE TOP 1120E YRRE BASKET, MIN B, PRUNING: PRUNING SHALL BE LIMITED TO REMOVAL OF DEAD OR ~~_~..__._M.~_..~-------- G ~ M of North Carolina, lnc. SHAH. BE DESIGNED TO PROVIDE A
~ ~ Dow"TOP,naF; ~M10~""L~`D"'"~ DAMAGED WOOD OR BRANCHES FOR TREES OR FOR SIGHT WWW,ARCAD?S-US.COM
a I FROST BASE OF TRUNK; D NONDEGRADABLE WRAP IS N v USED RENOVETOTALLY DISTANCES/SAFETY REASONS. THE SHIGO STANDARDS SHOULD BE ADHERED I UNIQUE PROJECT STATEMENT AND TO 801 Corporate Center Drive, Suite 300
M ~ T0. THE PRUNING OF SHRUBS SHALL BE LIMITED TO THE PRUNING ~ ~ PROVIDE DIRECTIONAL INFORMATION USING Raleigh, NC 27601-5073
I ~ 4 N'PROYIDED,AEh1OVEEPAK)RTD~iEYEAR NECESSARY TO MNNTNN THE NATURAL SHAPE OF PWVT EXCEPT FOR ~ ~ ~ 3 ~ lNSPecnaN SHEARED HEDGES. Te1:919/854-1282 Fax: [phone] A COMBINATION OF LANDSCAPE AND
0 o N 2S'SIIREDOEOBAAI(6Y1LCH,1'NpNBAJIAFROLITRUNK
N O ~ONOTPIACEMULl21x~NTACTWRHTREETRUNK} a N C. PEST CONTROL: PRE-EMERGENT WEED CONTROL FOR LAWNS AND SHRUB u•+ll~u SEAL HARDSCAPE. FEATURES YVlll BE DESIGNED ~o`' CARP ,
N g uwm+EN°EDeACKFRL BEDS MAY BE APPLIED IN FEBRUARY. CHEMICAL TREATMENT FOR INSECT i CARP LANDSCAPE REQUIREMENT AND SUBMITTED FOR SIGN PERMITS AND o~
N - ~T4- BREAKUPEDGEOFPLANIINGPIr INFESTATION AND DISEASE MAY BE APPLJED AND SHALL BE SPECIFlC TO SIZE (CALIPER) REMARKS QUANTITY BUFFER SCREENING WIMIN 60 OF FOUNDA110N
~'•~`ri'~~~'~• I ~ TANPSOB.SOIpLYABASEOfROOTBAII THE PROBLEM. POST-EMERGENT WEED CONiROI MAY BE APPLIED AS SYMBOL BOTANICAL NAME COMMON NAME t? ~ irAtx. LEwlNCSaILPEOESrauNasTURBED E ED IN MULCHED AND LANDSCAPED AREAS TO MAINTAIN ACCEPTABLE ARKING SPACE TO THE PLANNING DEPARTMENT FOR • sEAI
~ ~ _ N ED ~ - - ~ l ;I,. ( xotrES APPEARANCES. TREES COMMENT AND APPROVAL PRIOR TO THE _ ,
E v - - ~ -ll _ c - € - ; - _ ~i- ~ i _ t. cordrector to vedy mat adequate drelnpe ~ , ZJ ZELKOVA JAPONICA JAPONICA ZILKOVA x 20744 NA 8 , 2 CAL 8 r ISSUANCE OF A BUILDING PERMIT. c X ~,,~p
% r I ~ ~ ~ - I ~ - edak pda to PimiUnp. - ' I I z, pon~vxapankotae. D. MULCHING: MULCHING SHALL BE MAINTAINED AT A DEPTH OF 2 -3 IN ACER RUBRUM 'OCTOBER GLORY RED MAPLJ: r- ~ ~ 1= Ir i r I - t 3, b'takMp of trees ie nM reoommeMed, except on RY YEAR. 0 0 ~ ~ ~ elle9o<r~m~eevet~ It PLANT BEDS. MULCH SHALL BE REAPPLIED EVE 8 , 2 CAL 9 X i ••~'61flL~:•' 0
o a ~ _ _ ~ - - r~ CF CORNUS FLORIDA DOGWOOD ,~-,IJ~ . _ sWW~ is done, &e~e abeps • not hose end 10 GAL. WHITE 29 X 0
~ ~~'~l ~ r "'''°'d'ow°a'~e°~na">~'°°r°~e""'et E. MOWING: PRIMARY FESCUE LAWNS SHALL BE MAIMNNED AT A HEIGHT OF LID LAGERSTROEMUI INDICA 'DYNAMffE' CRAPE MYRTLE ' RED 14 X 4,~ $ 8, MULTI-STEM Z ~~nnulu~
a~~ SECONDARY TURF AREAS MAY BE MNNTAINED HIGHER AND LESS LIT IAGERSTROEMIA INDICA 'TONTO' CRAPE MYRTLE D1G W~l; SMAILOwPLANRNG NOLE l uses anew aonfomr to me erenmrda set tam 3 8', MULTI-STEM RED 5 X SEAL NOT VAID UNLESS SKIED AND DAZED s X
'A1DTN•SKWU11fIOFROOTBALL bmernostresemanedcansrar~naror FREQUENTLY. WARM SEASON GRASSES SHALL BE MOWED AS NEEDED Qp QUERCUS PHELLOS WILLOW OAK ea~eryslxAwroBareaeymeAr DURING THE GROWING SEASON TO MANTAIN THE RECOMMENDED HEIGHT OF 8', 2" CAL PROJECT MANAGER DEPARTMENT MANAGER
m Nuree~ ~,~N,1, QS QUERCUS SHUMARDII SHUMARD OAK s. Traesvae„rbLB~sseveredlot~rsn~nt.B• THE SPECIES OF TURF GRASS. ULMUS PARVIFOLIA ALLEE ELM 8', 2" CAL 6 X 0 3D' so' 90' R KING R KING
~ of eaBwBtbe rejected prbrto insmBAuon. UP 8 , 2 CAL. 2
N B' r dor~aby~meTovm~Arb~ot~ ~ t F. PLANT PROTECTION: AVOID EXCESS INTRUSION IMO THE ROOT ZONE CD CEDRUS DEODARA DEODAR CEDAR 10 GAL 4 X LEAD DESIGN PROF. CHECKED
v ass ware not Prom°arp"°~n Tao deePlY x ~ AREA OF ESTABLISHED PLANTINGS. MG MAGNOLJA GRANDIFLORA D.D. BLANCHARD SOUTHERN MAGNOW source (nursery), Lerelscape eanadar eheD y have euppAer mark Around hvel Ene above 9'-10' 2" CAL 4 X SCALE IN FEET ~NOtJA D SMITH J BECKMAN 03-SP•103 AWN ~
~ toofbdL it Town AArorbt aeremdna Bud mere G. WATERING: IF ANY IRRIGATION SYSTEM IS UTILIZED, THE SYSTEM SHALL SHRUBS " TASK /PHASE NUMBER 0
~ •E woewa soa over soot crews. mesa sea CJ CLERYERA JAPONICA CLEYERA c, BE REGULATED TO PROVIDE APPROXIMATELY t" OF RNNFALL PER WEEK 3 GAL., 24 HEIGHT 99 x APPROVED 00000 B HARRIS
• • ~ nr rnr?rn rur nf1A1111A11~ C[ACAAI CC CAIIFI I IA C6S6N~I IA SASANOUA CAMELLIA ELLIA 5 GAL ESTABLJSHED 4 rnwn~ n~ raRv
6' B /B MATCHED 11 X X PROJECT NUMBER DRAWING NUMBER
IAF ILEX ATTENUATA FOSTER 2 FOSTER HOLLY "a FAILURE TO MAINTAIN ALL PLANTINGS IN ACCORDANCE WITH THIS PLAN MAY D HOLLY 3 GAL, 24" HEIGHT 186 X
> Z ICB ILEX CORNUiA BURFORDI NANA DWARF BURFORD HOLLY LA-24 CONSTITUTE A VIOLATION OF THE UNIFIED DEVELOPMENT ORDINANCE AND BANKS ROSE PINK 22 X Approved by Date 3 GAL
B N RB ROSA BANKSIAE a MAY RESULT IN FINES. LANDSCAIPE~ Planning Date w05
3" POT 12" O.C. STAGGERED 2300 X Engineering Date
Town of Cary Community Appearance Manual GROUND COVER OJ OPHIOPOGON JAPONICUS MONDO GRASS u"•sr

_ _ _
copyright ©2003
KEY DESCRIPTION ELEVATION 5' TOP OF
EMBANKMENT TOTAL IMPERVIOUS AREA = 1.54 AC
Qt TOP OF EMBANKMENT EL 421.00 WATERSHED: SWIFT CREEK
Q2 RISER INLET RIM EL 418.10
3 1 RISER
1-2" DIA. DIP DRAW-DOWN Plf Q3 BOTTOM OF RISER EL 414.50 1 DRAW-DOWN PIPE 90' ELBOW 3 0
ANO SECTION Of PIPE, SECUf Of PIPE, SECURE PIPE TO RISER 2 1 8 ED METAL STRAPPING.
® INVERT OF INLEt EL 417.00 6' SHELF WITH GALVANIZED METAL STRAPI FOREBAY BERM ~ ~ ~ o n
Q5 BOTTOM OF BASIN EL 412.00 SKIMMER ASSEMBLY AS MANUFACTURE ~r- I I ~
BY WARREN FAIRCLOTH [phone]
© DIAMETER OF BARREL 30" COMPACTED STRUCTURAL FlLL IN BER SEE ANTI-SEEP COLLAR DETAIL
Q7 LENGTH, SLOPE AND 56' ®15,2 AND 1.0' MIN. BASE THROUGHOUT POND. 3 ~ ~ ~ a ~
1 INV. OUT OF BARREL INV =406.00 1 ~
NORMAL WATER SURFACE ELEUATIO 4
® EMERGENCY SPILLWAY ~1 EL 418.70
10 SEDIMENT REMOVAL DEPTH EL 414.00 1 I
CvO~ 6 POND PERMANENT POOL AREA SHALL BE GRADED AS 10 I I ASPHALT COATED 6
iQ BERM EL 417.00 3 3 SHOWN MEETING DEPTH RATIOS AS RE UIRED PER___________ _ 0 I CMP
- 3 Q 1 1 NCDENR BMP STORMWATER EXTENDED DETENTION
i WETLANDS. SEE GRADING PLAN FOR MORE INFO. 5 1 ~ _Y o-
3 1:1
RISER BASE
CUT-OFF TRENC 3'
2' SCALE: NONE
ANTI-SEEP PIATE "I ~I ~ ~ ~ , a~~n,, ~ C] ~ W ;I ~ i, /-t w a {;~trJ l
GASKET ~ ~ ,I ~ ~ i 1` ANGLE ~,~~y~i i,~t f _ 1 ~ / f ~ z1 "a~'Yk"~~.~ rte..`".-...' ~ lF. ~ i ~ i / / A ~ ~ ~ ~ ~
n EI ~ /1 A , U, ~ c ~ / ---.a.._.~. . _ _
/ ~ ~ ~ ~ ~ ~ ~ ! j ~
DETAIL AA ~ <r F . ~ ~ ~ s i ~ ~i l ~ ~ ~ I s ~ ~ ~ ~
! / r BOLTED CONNECTION WITH GASKET ~ t`1' ' ~ / N jy .d ~.~I ,f I ' ~ I f s ~ , ~ , % j~ /
i' ~ , I ~ ~ ~j ~ ~,l ~ ~ ~ ~ ~ r / ~ i / ~
~QjE; SUBMIT SHOP DRAWINGS PRIOR TO FABRICATION. I °r ~ ~ ? ! / , ! ~~j f l ~ ~ ~ i~ % / ICY ~ ~ l / j ~ i ~ % , r 1i ~ i /
l 'f=' i' ~ ~s i
~ ~ i t n ; ~ ~
\ i ~ ~
~~-e ~ l ~ ` ~ s } ~ i ~ SCALE: NONE I' , , ; ' ~ ii ~ r a ~ ~ I , w r..
r ~ n ~ yr~'i-'' ~;t r ~ ~ ~ ' ~ ~ ! c, ~ ' i D 19 AUG 04 REVISED PER NCDENR COMMENTS
/fir % r ` ~ ~ u . - ~ I ~ I - o ~ , n ~ ~t ~ ti , I Ill ,I`I I ' _ ~s • ~ ,
~ ~ ~ t~ ~ ~1 ~ d, ~ .J 1 I I I t i~ ~ ~ ~ l C 22 MAR 04 REVISED PER TOWN OF CARP COMMENTS
I 1 ; r ~ i' II I I / tJ n ~ 6 - ,~l( f /O t ~ s~. ~ 1 / / ~ ~ DN E11 - ~ , 2, B 01 MAR 04 REVISED BUIIDING AND PER COMMENTS
1 ti's r. I17_ .t, , ~ 1 .I ~ , , o C~ , i r~ ~iJ ~ J~ r G ~ ~
...v r~ ,~G ~ ti ' ~ ; ' I - - A 02 JUNE 03 LSSUED FOR R L : t: , ~ I i E EvIEw
1.~~ ~ \ j ! I ~ / r,, i ~ 1 ~ i , 6 ~ ~ \ / .4- , , , ~ ~ I ~ _ ~ 1 ~ , - ~ , / REV. ISSUED DATE REVISION DESCRIPTION
z+t ' , 41 i ,
/f ,rye{,, i ~ ~ . ~ I,: w~ rll _ ~ l ~ .
1 r - G . I ' , l r ~ , rs> ' 418 r ~ / / , ; , , - - _ l ~ 1 f , ' /
SLUICE GATE OPERAT R OUNT / ~ ' 1 9 ~ r~ 0 M I" ' ~ ~ ' ~ ~ ~ r ~ - 420 / ~ ~ ~ ~ ~ /
HaNOwHEEI 12 aeovE sLAe , - z / ~ _ 422 , r' i ~ I
• , , o.l. FRAM i ~ ~ - ~ 6 THICK CONC. SLAB REINF. E & GRATE - fi„ , , ` - ' ~ " ~ 5z5 (INSIDE DIM.) , - ~r,r, ' ~ , ~ ; ~ , 4,;. , 424 / ~ ~ i
NCDOT STD. 840.16 ` ~ , ~ W/ ~4 BARS ®8 O.C., E.W. 1 i~, , l l a 4 ~ Y} ~ i ~ ~ / , .,-....42 / ~ l ~
1 ~ ~ 6 • I ~ ~ i / ~ ~ ~ ~ Not for Construction _ 428 ~ i ~ , ~
EXTEND BRICK TO FORM "z8" ~ ~ ~ -~1 ~ - ~ 4 i~`~"" . / ~ TEMPORARY 15" CSP CROSS PIP ~ -R. R R , E /
COLUMNS AT CORNERS , I ` ; , ~ ~ ~ ~ ; J' / / l
11, ` , . " r r U 1 ~ i';4~~rj~i, 1. ! i i ~ ~ ~ ~ r"
° ~ f ~ ~ ~ i ~ ~ PROJECT TITLE
N ~ / ~ , [ I i ~f ' % ~ _
1 ~ .d~ /r i i i ~ -1 / ~ ~ r ! 1~ ,
i - - ~ i ; - r r / ~ l
r i ~ r ~ f f
~ ~ ! I ~ . _ ~ w., , ~ / - - a'~t „ ~ , = i. l 'r , t ' ~ i f r - ~ R R ~ R
i , ~ Z r i. r _ / i ~ ~
3 3 7.~,.. ~ ~ , . ~,7 ~ 3~ ~ ~ p ~ _ r,. ~ ~ ~ , ~ , ~ f' /
s, ~ - 4 ~ i r~ I ~ / ! ~ r % .
' . ~ ~r , i~ i ~ 'S ~ ~ >x ? f ~ ~ `E ~ t i I~ . - / f'' ~ r /
- i i Ir ( r-.
u~ i ~ d j ; ; l; lid
1r.' i r i , „a , ' - ~jit r _ rr~ . - • J ~ ~ ~ ~ II ~ f ~ , ~ / l'' \ ~ f 1
~ ~ l• li ~ 7 fl ~ \ ~ i ~ a f i_ - ~~l. ~ f Iii ~ ,tom - , f / 38 ~ , , ~
- , _ x ,4,_ _ _ ` ~ f ~ ~
C. II j i ~ ~ ~ ii _ - ~ ~ _ _ _ f f,,,-p it r
~,,il.. tf-~ li' . - J~ ! ~ - / i ~ ~ ~ SHEET TITLE
' . ~ ~1. ~ i ,r ~ ~ i i ~ i ! t ~ r i ; ' r ~ ~ tF 5-- ~
12 X 12 WATERMAN SERIES 3000 ' ~ ~ " I SLUICE GATE INSTALLED INSIDE RISER. ~ ~ ~ ~ ~:.I ~ ~ . / / ~ ~ E i ~
ENSURE DRNNAGE TO SLUICE GATE. PEN SLUICE GATE 2 AND 9 x9 x1 CONC. BASE I ~ ; vl t a
COVER W a ~ t ITH HARDWARE CLOTH _ _ _ ~ ~ _ ;G~. r ~ i / /
AND STONE TO ALLOW DRNNAGE F, ; : ~ _ ~ _ , ° r° ~ ' ~ ~ d- tp
DURI ~ k NG CONSTRUCTION. I E ~ I ( ~ _
'~L r / ~
ISER FONT VIEW ! ~ ! - ~ " .~f ~ l ~ , ' ~ ~ 1 1 ~ . I. ,
- I ! ~;I I' 1 7 ~ ! i
_ _ , . , i ~ I i~^ -
~ 5x5 INSIDE DIM. i I, II 1 1 ~ ~ I t f ~ r ~ r ! : r
O r.' ~ it { ~ t 1 ~ J _ / , i ,i' ,
~ I ~4 REBARS ON 1 CENTERS, , , I I : • „ ~ ~ . _ _ _ ~ ' ~ I l ,~f ~ , i , + ` _ _ ; - `r~ G & M of North Carolina Inc.
n- TYPICAL - _ . ~~g~ 1 i U • _ I
~ Au sloES To I HAVE OPENING ~E ~f~TH SUdi~Pf.~!w~~i ;--~'ti ~I I , ; , ~ _ - . ~ WINW.ARCADIS-US.COM _ ~ ~ I i I r~,,
3 L o ~ ~ ' ` i ~ HMI • ~ ~ - - - 801 Co ore i ~ , rp at Center Dnve, Suite 300
O N tC ~~N~~~ J'. i ~ N ~ ~ I it ~ . ~ _w_r. ~ - ~ ? , ~ _ Raleigh, NC 27607-5013 I s _ - " ! ` ~ ` ~ o _ - Tel: [phone] Faz: 919/854-5448
N 2 - ~ ~ ~i T - Q i I-.,i II Ll ,r - ~
O ~ ~I- i 1 - _ ~ . . I - - - _ I I ~~~?uwu~r~~ SEAL
i I' ~i ~ ~~_=---'J 1 DIP DRAW-DOWN PIPES, 90' ELBOW AND ~ ' ~ I ~ '
~ • • SECTION OF PIPE. SECURE PIPE TO RISER i ! ~ R' ! - - _ . ~
WffH GALVINIZED METAL STRAPPING. E o ~ ~ ~ ~ ~ / ~ 444~,~..rs. i ~ 1 _ ~ " ~
s 4 ;vp,~:; ~ ~ ~ 442 _ ~ _ 442 ~ i - ~ ~ ~ -
_ T.T_. M M R ~ 20144
~ tl ~ I' ~ i ~ a s ~ ,;~5~ ~~6~. .5'- 'E `(i.r~ is _ i i ~ ~ . c.~ z ~ ~y,
w ..f _
- - - - lpnip~~1
~ r-_:- . SEAL NOT VMS UNUTS SIGNED MID DATED ,_.,,m-_ _ _ -
O ( ii 7 C.~ ~
i r } Ca N 03-SP~03 _ PROJECT MANAGER DEPARTMENT MANAGER
J ~y i) ~ t:f`' ~ i L CG h r R KING R KING ~ APPROVED
cd ~ TOWN OF CARY ~ ~ LEAD DESIGN P ROF CHECKED
- ~ 31 'i ~J> i~: ~~i . D SMITH J BECKMAN
ApproVej, Date TASK PHASE NUMBER DRAWN BY
Planning Date
L E RISER SIDE MEW 00000 B HARRIS Engineering Date
PROJECT NUMBER DRAWING NUMBER
cc :t 0 30' ' 60 90
NC402025 C1 m03
i SCALE IN FEET

copyright ©2003
KEY DESCRIPTION ELEVATION 5' TOP OF
EMBANKMENT TOTAL IMPERVIOUS AREA = 1.54 AC
~1 TOP OF EMBANKMENT EL 421.00 WATERSHED: SWIFT CREEK
~2 RISER INLET RIM EL 418.10
3 " RISER 1 DRAW-DOWN PIPE 90' ELBOW 3
3 BOTTOM OF RISER EL 414.50 1 1-2 DIA. DIP DRAW-DOWN PIF • AND SECTION OF PIPE. SECUF OF PIPE. SECURE PIPE TO RISER 2 1 8
WITH GALVANIZED METAL STRAPI ® INVERT OF INLET EL 417.00 6' SHELF ED METAL STRAPPING.
FOREBAY BERM i i
~5 BOTTOM OF BASIN EL 412.00 SKIMMER ASSEMBLY AS MANUFACTURED
BY WARREN FAIRCLOTH [phone]
© DIAMETER OF BARREL 30" COMPACTED STRUCTURAL FlLL IN BER SEE ANTI-SEEP COLLAR DETAIL 3
Q7 LENGTH, SLOPE AND 56' 0 15.2X AND 1.0' MIN. BASE THROUGHOUT POND.
1 INV. OUT OF BARREL INV =406.00 NORMAL WATER SURFACE ELEVATION 4 1
® EMERGENCY SPILLWAY ~1 EL 418.70 I
10 SEDIMENT REMOVAL DEPTH EL 414.00 1 NQIE;
6 POND PERMANENT POOL AREA SHALL BE GRADED AS 1 • ( I ASPHALT COATED . ~ 6
Q BERM EL 417.00 3 _ 3 SHOWN MEETING DEPTH RATIOS AS REQUIRED PER 3 - ( CMP
1 1 NC6~i~i ~NTP STOR~IWATER~XTENDED DETENTION
1 WETLANDS. SEE GRADING PLAN FOR MORE INFO. 5 1 M 0---'-----
3 1:1
RISER BASE
CUT-OFF TRENC 3'
2'
SCALE; NONE
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BOLTED CONNECTION WITH GASKET ~ ~ . ~ r~ ~ N ~ t!.~~ r i i, ~ - , I ~ - - ~ ~ r ~ SUM
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1 ` ~ ~ rv l !r SUBMIT SHOP DRAWINGS PRIOR TO FABRICATION. l ° ~ ~ F ~ .
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> i• ~y ' r ..3 ~ ` r_ - _ ~ I I a ~rr.. , ~ 1, : 6 MAR 04 REVISED BUILDING AND PER COMMENTS .3~:- G~ r{. i I r D.
1 YI ~ ~F; ~ ~ r, 'r , ~ '.t.. f ~ r ~ ~1.~ : t _ sr - , ( ~ I ~ { ~ A 02 JUNE 03 ISSUED FOR REVIEW
~b~ r ~ ~ C~ . C~ I i~ ~ i _ ~ n, . t , ~ ~ ~ i I I / 1 / _ u~. _ ~ ti ~ J ~ , ~.~i ~ 1~~ i I V ~ f i , f~ ~ i
°~J ~ ~ ~ r' f6 r 1 ~ I ! , ~ • / r v ~ I ~ , Ij ~ ~ ~.z~-- 1 ~ , - , , REV. ISSUED DATE REVISION DESCRIPTION ~ ,
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HANOwHEEL 12 aeovE slab ~ /~u , ~ , , / 2 ' ~ t ~ i ~ ,f / ~ 42 ~ 1 /
, D.I. FRAME & GRATE i7~ i r ~ 6 THICK CONC. SLAB, REINF. 5x5 (INSIDE DIM.) ! i~~' ~ ~ , , ~~ti-~ ~ ~ ~ 4 / . ~ ~ ~ ~
W~ ~4 BARS ~ 8" O.C., E.W. NCDOT STD. 840.16 t/y, ~/,j ~ -r` ~ ' , „ / 8 - f - / ' ~--~2 ~ ~ Not for Construction
/ i'4 / ~ i , 428 i i ~
EXTEND BRICK TO FORM 8 z8 ~ ; ,r, ' ~ y u ` ~ / ~ -~t.~ / ' TEMPORARY 15" CSP CROSS PIPE ~
COLUMNS AT CORNERS ~t ~ ~ ~ d/ N 1 ~X / ~ / ~ ~ i' , • ~ / , f ,
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~i " ~ ~ ~ 1 G! ~ - ~ ~ ~ ~ ~ / ~ - PROJECT TITLE
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12 X 12 WATERMAN SERIES 3000 - : , , - _ - - q~6 j SLUICE GATE INSTALLED INSIDE RISER. ~ ~ ~ I ~ ~ ~ _ __!,t
ENSURE DRAINAGE TO SLUICE GATE. PEN SLUICE GATE 2 AND 9 x9 xt CONC. BASE , - . ~ -
~ i J) , r ~ COVER WITH ' HARDWARE CLOTH _ ~ '~~1 ~ ~ ~ ~ ~ . ~ i ,aj ~ ~ ~ / %
AND STONE TO ' ~ ' T - " - ALLOW DRAINAGE I , tp
DURING CONSTR ~ E ' < I I ~ UCT10N. I _ ~ b ~r f, ' , . i qtr i/
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RISER FRONT VIEYV i ~ ' ~ I ' ~ ~r ~ ~ / ~ / ~ ~i~ ~ ~ i j i~, /
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~ #4 REBARS ON 1' CENTERS, i II i _ ~ a a TYPICAL X38 ~ ~ ; , ~ _ . i , ~ ; ~ G & M of North Carolina, lnc. ~ r
o i ' ' . ii I ~ ; _ - _ % ~ WWW.ARCADIS-US.COM
iV / I .r. ~ ~ ~ 3 All SIDES TO HAVE OPENING ~E P.A1M SUt31„'a L i ~ ~ Y _ _ r _ - ~ - 801 Corporate Center Drive, Suite 300
d' / 3 ~ , O r ' ' _ ~ ~ - Ralei h NC 27607-5073 ~ ~ - r 9•
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p, 0 N 2 ~ ~ I ~ 'L._ 7 d' r- I E 0, Q / 'I~a I • ~o ~ ~ ~ - ~ -
o ~ ~t~ E I ~r - Illlullurl, SEAL f - ~ - X011 N ~ ?r~i
1 DIP DRAW-DOWN PIPES, 90 ELBOW AND A.
I,~.~ ~ - - . SECTION OF PIPE. SECURE PIPE TO RISER i ~ ~ _ - - - - f i
WITH GALVINIZEO METAL STRAPPING. ; ; + ° ~ ,p. _ • • 44fl _r •
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L ~ I 4YJ V ~ ~ _ _ _ _ Q3.gp~03 PROJECT MANAGER DEPARTMENT MANAGER
H C' , I r-+ `~l _ R KING R KING ~ APPROVED \
~ ~ C> 47 n ^ C I
i u'i 1 r~J O ~ ( ;~f r~} IIr- TOWN OF CARY LE4D DESIGN PROF. ! ~ CHECKED _~___.~_-----------------------.___.r_______._.~,
t0 .tom ~ . ~ it ai ~ E i.~- ; D SMITH J BECKMAN _..J
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. ~ th) L Cry E RISER SIDE VIEW H OHIO Planning TASK /PHASE NUMBER DRAWN BY g Date 00000 B HARRIS Engineering
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- Z PROJECT NUMBER DRAWING NUMBER
Q 1• 0 30' \ 60' 90' C1 v03
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SCALE IN FEET

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PIPE OUTLET TO FLAT AREA - NO WELL-DEFlNED CHANNEL 1. ENSURE THAT T AN I
HE SUBGRADE FOR THE FlLTER D R PRAP FOLLOWS THE REQUIRED LINES AND GRADES SHOWN IN T STRUCTURE DATA DOWNSTREAM PIPE DATA COMPACT ANY Fl IDES SHOWN IN THE PLAN. NQI)~
11 REQUIRED IN THE SUBGRADE TO THE DENSITY pF THE SURROUNDING UNDISTURBED MATERIAL. LON RIM SIZE LENGTH UPSTREAM DOWNSTREAM SUBGRADE ON UNDISTURBED SOIL MAY ALSO BE FlILED BY INCREASING THE ~PRAP THICKNESS. 1 MATERIAL. LOW AREAS IN THE TO ON COVER PAGE 1 REFER NOTES
N0. ELEVATION TYPE IN, Fi INVERT INVERT
1 425.8 CB 18 50 420.4 419.9 2. THE RIPRAP AND GRAVEL BEDDING MUST CONFORM TO THE SPECIFlED GRADING LIMITS SHOWN ON THE PLANS. A ~ A 2. RESEED ALL DISTURBED AREAS. HE PLANS. SUMMARY OF DISCHARGES
to 421.8 CB 18 45 419.7 419.0 - 3. All AREAS SHALL HAVE POSITIVE DRAINAGE AWAY FROM BUILDING
2 42 .5 4 3d d Lw 3. FlLTER FABRIC MUST BE PROPERLY PROTECTED FROM PUNCHING OR TEARING DURING INSTALLATION. REPAIR ANY DA 5 CB 18 27 20 9 420.6 0 o REMOVING THE RIPRAP AND PLACING ANOTHER PIECE ~ FlLTER CLOTH OVER THE DAMAGED AREA. ALL COI~IECTING J REPAIR ANY DAMAGE BY STORM FREQUENCY PRE-DEVELOPMENT POST-DEVELOPMENT INTO THE STORM DRAIN SYSTEM. LL COI~IECTiNG JOINTS SHOULD
3 425.2 DI 15 36 422.7 422,4 ~ - OVERLAP A MINIMUM OF 1 FT, IF THE DAMAGE IS EXTENSI4E, REPLACE THE ENTIRE FlLTER CLOTH,
3A 428.4 CB 15 21 423.2 422.9 1 YEAR 4.07 CFS 2.15 CFS 4. CONTRACTOR SHALL INSTALL ADDmONAL ONERSION DITCHES AS NECESSARI' TO PHASE WORK.
4 435.2 CB 18 30 426.2 422.2 4, RIPRAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID DAMAGING THE FlLTER. 10 YEAR 6.49 CFS 13.92 CFS 5. TREE PROTECTION FENCING ON THIS PROJECT SHALL BE
5 435.5 CB 18 28 430.0 429.0 INSTALLED AND INSPECTED BEFORE ISSUANCE ~ A GRADING
6 438.7 CB 4 5. THE MINIMUM THICKNESS OF THE RIPRAP SHOULD BE 1.5 TIMES THE MAXIMUM STONE DIA. 15 132 33 3 430.3 PERMIT.
7 439.0 DI 15 74 434.1 433.5 6. RIPRAP MAY BE FlELD STONE OR ROUGH QUARRY STONE. B SHAH BE HARD, ANGULAR, HIGHLY WEATHER-RESISTAN :ATHER-RESISTANT AND WELL 6. TO MINIMIZE DAMAGE TO EXISTING TREES NEAR THE INTERIOR
8 439.0 DI 15 48 434.8 434.3 GRADED. EDGE OF BUFFERS AND STREETSCAPES, THE CONTRACTOR SHALL
9 .439.0 DI 15 96 436.0 435.0 L° CUT MINIMUM 2' TRENCHES ALONG THE LIMITS OF DISNRBANCE, SO
7. CONSTRUCT THE APRON ON ZERO GRADE WTM NO OVERFAII AT THE END. MAKE THE TOP 41' 1HE RIPRAP AT THE d = 1. 'MIN. END LEVEL WITH THE RECEMNG AREA OR SLIGHTLY BELOW (T. RIPRAP AT THE DOWNSTREAM AS TO CUT, RATHER THAN TEAR, ROOTS.
20 434.3 CB 18 59 424.0 418.0 1. TREE PROTECTION FENCE SHAIJ. BE MNMAINED ON SITE UN11L
21 434.4 CB 18 23 429.5 429.2 8. ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RECEMNG STREAM AND PREFERABLY STRAIGHT THROUGHO SIGHT THROUGHOUT TfS LENGTH. ALL WORK IS COMPLETE AND A FNAL SITE INSPECTION FOR
22 436.5 CB 18 30 432.0 430.1 IF A CURVE IS NEEDED TO FIT SITE CONDmONS, PLACE N IN THE UPPER SECTION OF THE APRON. CERTIFlCATE OF OCCUPANCY (CO) IS SCHEDULED. THE FENCING
23 437.3 CB 15 30 432.3 432.0 SHALL BE REMOVED PRIOR TO FINAL SITE INSPECTION FOR THE CO.
24 438.3 CB 15 70 434.9 432.3 8" GRAVEL BEDDING 9. IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL D~'iURBED AREAS WTIH VEGETATION. 8. PERMANENT GROUND COVER SHALL BE ESTABLISHED IN 15
OVER FlLTER FABRK; WORKING DAYS OR 90 CALENDAR DAYS, WHICH EVER IS SHORTER.
1lPE CODE NO. ~ ~ , ~ t - - - r / ` / ~ ; ~ / ` ; ` / ~ / 9, ALL STORM DRAIN FRAMES, GRATES AND HOODS SHALL BE
JB =JUNCTION BOX ECTI~~N A-A _ ~ / 1 _ RIM ELEV. ~ ~ i ~ 1 / ~ ~ ~ r _ / ! : ' ~ ~ . ' ~ STAMPED WITH "DRNNS TO RNER" IN ACCORDANCE W(iTi TOWN OF
MH -STORM MANHOLE ~ ~ , ; / CB =CATCH BASIN CURB INLET PIPE OUTLET PIPE DIA MIN. APRON MM. APRON MIN. APRON STONE SIZE ,T ; o / ~ ~ n, L. / ~ - / ~ / i i ~ CARY STANDARDS.
DESIGNATIQN (d°) LENGTH (La) WIDTH Lw) DEP'TH (d (d50 - NCDOT) 1, ~ OBL-CB =DOUBLE CATCH BASIN FLOW ,i / ~ a ' ~ TRANSIiION 0 PROTECTION - / / / i
DI =DROP INLET 0820 18" 10 FT 12 FT 21" I ~ `f",k~ / " . i~.a c7 L _ ~ / ~ i ~ ~ ~ _ ~ ; ~ ~ ~ INTO LEVEL EADER ~ i / / / / 10. A PRE-CONSTRUCiION CONFERENCE MAY BE REQUIRED PRIOR ~ i ~ ,s~~i ~ , \ ~ rn ? / TO ISSUANCE OF A GRADING PERMIT. 4 ~ ~ i i i
OE =FLARED END CB1A 18 10 FT 12 FT 21 I ca ~ z r.~ i ~ ~ / ~ PSTREAM INVERT ' / / ~ ~ ~ '~ERi~N 'CIS ; N6 OUTLET PI~. PROVI6E MP ~ ~ I \ ~ EADER. ,r.~` ~ A Q RY / ,
LDI =LANDSCAPE DROP INLET, INLET AND POND OUTLET 11 FT 20 FT ~ ~ ~ ' ; ~ t , % / r' DOWNSTREAM INVERT 30 21 I - , r , , , i i~ , DOWNSTREAM PIPE MAY BE PLASTIC u ~ w ~ ' ` ! ~ ~ , , ~KIMtw(ER FOR (ZI ,DURING C,ONSTRUCT(0 / 11. ALL STREETS IN FRONt OF THE PROJECT Wlll BE KEPT CLEAN ' , 1---.~._ , ' - i ~ ~ / ~ AT ALL TIMES OR A WASTi STATION WILL BE REQUIRED.
o z J~ r rzl ~ t ~ / A'n~e ~ ;i; C~ r~ i J / SP ~ ~ r ,
1. STRUCTURES WITHIN NCOOT RIGHT-OF-WAY SHALL BE TO NCDOT STANDARDS. -c ~ ~+.b lC r~;r_ ~ l i - \ / ~ ~ \ r-~` , _ ..~p~/ ~ , ~ I / ~ 12. A BOND EQUAL TO 125 OF THE ENGINEERS ESTIMATE TO i ~ ~ ~ , ~ - J SF ; ~ / i CONSTRUCT THE PROPOSED BEST MANAGEMENT PRACTICE MUST BE
/ % % / - ~ ~ / / , POSTED BffORE THE GRADING PERMIT IS ISSUED FOR THE PROJECT. r; i
NO SCALE ~ ` a~, r ~ i,ri ~ ! / 2, STRUCTURES NOT WffHIN RIGHT OF WAY SHAH ALL BE TO TOWN OF CARY STANDARDS. j f.: ; , i ; rj l / / ~ ~ i ~ / ~ r ~ / ,
,1C,J ~r~i ~ t.; /j , ~ V ~ 13. A GRADING PERMIT Wlll NOT BE ISSUED UNTIL THE TOWN OF / / ) ~
3. ALL STORM PIPES TO BE CLASS IN RCP UNLESS OTHERWISE NOTED. l/r.~ ~ ~ ! r , 7. f ~ ~ 1 j ~ . % / . ~ ' ~ r ~ ~ CARP HAS RECENED N011FlCAT10N FROM THE WETLANDS / i ~ ~ l ' , - ~ ~ ~ ~ / RESTORATION FUND (WRF) THAT THE DEVELOPER HAS PAID THE
~ ~ _ / ~ / / ' r ~ RE FEE FOR N(iROGEN BIIY DOWN. QU~tED ~ /
Ij~~ J~~/ ~ i ~:~r ~ r ld / ~ / ~ N d+, `V ~ ~QG~/ / ~ ~ / € N, In ,y ~ / ~ ; ~ AREA PROVE 14. THE PROJE N4 MEET OF THE UIR
l~~=j ~ v I ~ ~.~/i , r / , n l ~1 ~ ~ / co t , ~ ~ ~ , / ~ , ~ ~ T r r N / 1 CT LL All REQ EMENTS RELATIVE / ~ i TOE, OK SLOPE , ~ ~ ~ / - .s~ , SILT FENCE AND ~ LNG / TO BEST MANAGEMENT PRACTICES ANO ENGINEERED STORMWATER
CO t u~ ~ ~ L) ~ a _ , ~,6~,., , ~ / r I , ~ - ' J AS REQUIRED. , CONTROL STRUCTURES AS OU111NE0 IN THE TOWN OF CARP UNIFlED
_ .;f / ~ DEVELOPMENT ORWNANCE. 1 l it / I / - iJ .I A l i 1
v,~ f r' ~ ~'~ry ~I V / T 1/ 1 ~ yf A . V \ ~ r ~ .Q T . ~ U; 1 ,I~' ' w ~ \ti • , ~ ~.M 15, TF~ RISER STRUCTURE Will BE ON SiTE BEFORE THE GRADING ~ e.. ` 5 ~ ~ .1 ~ r.. (J L, ice.. ~j / /
j y. _ _ / ~ j I _ , ~ ~ ~ PERMIT IS ISSUED.
/.:;f/ / /~y1, ;j ; UFIDISTU,RBE ~;a ~ ~ f t ` ~ ~ f- ~ r i / / I I i / ~ ^ n - ~ > G ` ~ r ! C 22 MAR 04 REVISED PER TOWN OF CARY COMMENTS
~ ~ ~ ~,l ,'r` WETLAND Ak ~ ~ r~ ,~J ~ r ~ j'. ~ j ~~~~y~a.~ ~ / ~ I- v~ - i / / )11~i;A~ ~ % r~: x ~ % 't b~ ! 412 I, I ~ /
DEFlNrrION ~ ~ ION CONTROL MAINTENANC PLAN: ! ` 'r j ~ ~ ;l~/ ~ r , ~ , I , ( , / - WETL7IND' ARFA TO BE~. r ~ . ~ ~ _ ~ ~ M- / 8 01 MAR 04 REVISED BUILDING AND PER COMT~lTS ID' AREA TO BE„r - ~ ~ k'1° ' 414 , ' I 4 i f
DM:RSION DITCH `l:~ ~ ~j ; 0' jrlr , / / . IMPACTED (0.03~4t:~ / . ~ - ~ 1 ~ ~ ~ ~ i ~ A 42 JUNE 03 ISSUED .FOR REVIEW ED 0.03~fi ~ ~ k r I 416 ; t ~ ~ ~
All EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED WEEKLY 11 l ~ ~ ; i r j: . ; v nl ~ 411- ~ ~ ~
AND AFTER EACH RUNOFF PRODUCING R,MNFALL STRUCTURES THAT SHALL BE _ rn.~~~ r; ~ ,'RQ ~ r. ~ : ; r' ~ FFE - 343.03 FlNISHED FLOOR ELEVATION 1,~.. _ 'G ~ ; N ~ ~~f ; , ~ ~ i ~ ~ ~ , 416, ~ ~ REV. ISSUED DATE REVISION DESCRIPTION .J ~ ~ 41a ,t ~
INSPECTED INCLUDE: r, ~ ~ -,-,..~h r C ~ , l a /SAM r• , ~ ~ ~ / / ~ 420 ~ ~ /
C.B./DI GRAVEL INLET PROTECTION ,d' ` ~ 1 r,, t; ~ ' 4 T '4 / „ 1. GRAVEL AND RIPRAP FlLTER BASIN ~ r~: ~ ~ , ~ / ,
REMOVE SEDIMENT AND RESTORE SEDIMENT STORAGE AREA TO ITS ORIGINAL _ - _ t.~:! • . • ~ ' _ _.X~r-- EXISTING CONTOUR r.. r ~ r _ / / 422 , ~ ~ ~ ~ / i / / ~
DIMENSIONS WHEN SEDIMENT ACCUMULATES TO THE MAXIMUM DEPTH ALLOWED. ADD ~ ~ i r t~ f' ~ ~ - / 424 ~ / - i
STONE TO FlLTER BERM AS NECESSARY TO MAINTAIN DESIGN DIMENSIONS. : r ~ l , r . ~ ~ ! , ~ z ; -XXX- PROPOSED CONTOUR • , , t ~ ~ , ,
25 X 70 GRAVEL , ' , , 4~ 2. SILT FENCE SF SF ~ J >y'r ,li ~ 4 428 ~ r ~ ' ~ / ~ / , ~ ~ / / ~ ~ ,
SILT FENCE CONSTRUCTION ENTRANCE ~ j~.~ ~i; ( ~ T ANY FABRIC WHICH COLLAPSES, TEARS, DECOMPOSES OR BECOMES INEFFECTIVE , , r lj ,!f ~ v , ~ , ~ ~ Not for Construction ~ ~ ~ / " 1
~ i T 434, r SHALL BE REPLACED IMMEDIATELY. SEDIMENT DEPOSITS SHALL BE REMOVED WHEN ~ TREE PROTECTION FENCE / /i,' ~ ? ''1 f, ~ f / l ~ TE~I 15 CSP CROSS PIPE ,
SEDIMENT BEHIND THE FENCE REACHES SIX INCHES, ~ j ~ ; + "'y
3. STOCKPILES = ; ' r ~ ~ ° ° ~ ! 1 ry oo~ 0 0 0 0. ~ 11+50 ` 12+00 r ' 2+50 ~ 3 00 / ~o /13+50 14+OD _ ~
r. ZATION ~ r I x STOCKPILES SHALL BE CHECKED FOR SEDIMENTATION AND STABLE! RIP RAP OUTLET PROTECTION - a i o 0 r ~ /
r.~ 0. 00 0 ° 0~ o 0000 ~ ,rr~ ~ ~ , ~ ~ ! , ' I PROJECT TITLE ,rr a ~ f ~ 21 ~ / r l i i
4. SEEDING, FERTILIZING, AND MULCHING _ _ _ _ _ _ _ _ _ o , o SEEDED AREAS SHALL BE INSPECTED FOR FNLURE AND NECESSARY REPNRS AND WETLAND ~ °
r' SF ~ 2.. r' j RE-SEEDiNGS SHALL BE MADE WIMIN THE SAME SEASON, IF POSSIBLE. r ~ i +A~--r r' r i / I ~ ~ I ~ i
- - - - - - - - - - STREAM BUFFER ; , ~ / p % '
5. CONSTRUCTION ENTRANCE AND EXTf i''%' I i ~ ` ' SPOT ELEVATION • ~*:.r• . ~ ~ ~ 0 i i ~ ~ ; l ~ I ~ ~
INSPECT CONSTRUCTION ROAD SURFACE REGULARLY MNNTNN IN A CONDI>70N TO - ~ ti ` ~ "
PREVENT SEDIMENT FROM LEAVING THE S AND TOPDRESS WITH ADDmONAL STONE ~ TOP OTTOM OF WALL ELEVATION ~ - WHEN NEEDED. SWEEP EXISTING ROADWAY TO REMOVE ANY ACCUMULATED SEDIMENT. ~ o ~ ~ ~ ,5~„ i ~ - r ~ ~ / II ~
. ~ r ~ l I ' ~ ~ ~ i ;rii. {0 . 1 1 ~ ! CHECK DAM i > ~ ~ ~ ~ r ! off` ` ~ , r' I ~ r' . ' / i
r/ 6. TEMPORARY DM:RSIDN DITCHES ~ t7 ~ 1 r- ~ t / / ~ i ~/z~'' I ~ i~' / ~ r
R M VE S IM M W P RIDGE AFTER EACH ~ 'D ,ts ~ ~ E 0 ED ENT FRO THE FLO AREA AND RE AIR DMDiSION REFER TO DETAIL SHEETS FOR ADDITIONAL INFORMATION J, • / ~ ~ ~I ~'~r. J,r 1 / 'i r~ ~
RAINFALL. 1 1 ~ ~ II Ih iii ~
1 a' - _ 7. GRAVEL INLET PROTECTION ~ ~ " ~ i, ~ ~ ,t ( - , . =f - - ~ - - ~ ~a. ~ i~ ~ I I
REMOVE SEDIMENT FROM AROUND INLET AFTER EACH STORM. CLEAN OR REPLACE ~ M a ~ ~ ~ ~ . , ~ ~ _ . ~ ~ - i - ~ ~ / / ~ , , , /f,;~ r I :I~I I /r , ~ ,
y.- STONE AS NEEDED. ( ra L ~ , _ ~ ~ . _
s
~ ~ h ~ ~ _N, ,I _ 436. ~ ~ I , ` j ~ ~ ; ~ r I .SHEET TITLE
y ~N _ 4 f = - I ' t. TF..v'.~t~l~~. ~ .i X11. S .,.at r: ~ ~ / ' ' ,
t -I T F. ' m P 2 4.77 ~ . I a ~ - '~l4 ~e k ~ rl~l'. •a~~'a .S Y`om' / ~ ' I ' t~
\ ~ r EROSION CONTROL CONSTRUCTION SEQUENCE ~ _
I' / i ~ l ~ i
1. INSTALL TREE PROTECTION FENCING BffORE OBTAINING GRADING PERMIT. ~ ~ ~ i i'
s` ~ i ~ . _ ~ r ~ / / ~ f ~ ~9' ~ /
2. INSTAL!. CRUSHED STONE CONSTRUCTION ENTRANC TEMPORARY DMRSION DITCHES SILT FENC SEDIMENT TRAPS AID OTHER MEASURES AS SHOWN -
ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES. SEED TEMPORARY DNERSIONS, BASINS MID BERMS IMMEDIATELY ~ ~ T ~ - ~ ~ r AF1ER CONSTRUCTION. ~ ~ .T j i ~ ~ ~ ~ ~ ~ I
r _ _ - ~ r ~ ~
3. CALL 460-4935 FOR AN ON-SfiE INSPEC110N BY A TOWN OF CARY EROSION CONTROL INSPECTOR TO OBTAIN A CERTiFlCATE OF COMPLIANCE.. ~ _ A ~ i ; i i ~ I / ~ ~ ~ j ~ l J ~ ~ ~ ~ ~ 1 ~ i / % FFE 440.0 FlRSt F100R) j ~ ; I , I , .
i~ FFE =452.0 SECOND FLOOR ~ ~ I I ` ~ % ~ ' i ~
4. BEGIN CLEARING AND GRUBBING. MNNTWN DEVICES AS NEEDED. ROUGH GRADE SITE. DELAY GRADING IN AREAS THAT WOULD REDUCE THE _ MINIMUM DIMENSIONS OF SEDIMENT CONTROL BASINS. s= ~ ~ ~ - '``~~Q
nj t`. - - l ~J~ ~ 7 _ _ r r, ` I I ..rat / ~ _ ' ~ . ~ I - _ ~ I r ~ G & M of North Carolina, Inc.
~ 5. STOCKPILE TOPSaI AND SUITABLE Flll MATERIAL INSTALL SILT FENCE AND DM:RSIONS AROUND STOCKPILE AREAS. DISPOSE OF WASTE AND ( ' - - ~ I r- r ~ ~ ~ - iI .GLf>11tING IiMTTSr
o a EXCESS MATERIAL OFF-SITE 1N A LEGAL MANNER. ~ `:r` ~ - 0 I ~ ~ i UVVVVV.ARCADIS-US.COM ~ ' _ II ~ -I~
~ ~ 6. INSTALL STORM SEWER AND SANITARY SEWER. PROTECT INLETS WITH GRAVEL INLET CONTROL, SEDIMENT TRAPS OR OTHER APPROVED MEASURES AS i~. o , - 8 ~ INLET ~ ; ~ ' ' ~ ~ - - - - ffi~ _ I _ 801 Corporate Center Drive, Suite 300
i SHOWN ON THE APPROVED PLANS, ~ ; ~ j ~ ~ ~ PRO~ECTiON I ~ _ II Ra~~gh, NC 21607-5073 I / ~l ~ ! ?
p N i I O ~ N N 7. PROVIDE TEMPORARY SEDIMENT BASINS IN ACCORDANCE WITH TOWN OF CARY DETAL 4.03 WITHIN PROPOSED SWM POND. 3~ ~ ICAL) i - - I I ~ Tel: [phone] Fax: [phone]$ I I _
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8. PLACE GRAVEL BASE IN THE DRM: AREAS WHEN THESE AREAS ARE AT GRADE, TO PROVIDE WORK AND CONSTRUCTION STAGING AREAS, AND TO I~• _ l ~ I ~ R~4 a s!oy
3 ~ - 440 i MINIMIZE EROSION. ` ~ ~ r 440 / ' 00Ua S "ry 7 n~®a ~ _J I ~ ,ga oar„ ~ a
~ 442---~ ~ rl'"'! ~ f 442 ~ ~ ~ io ~ ~o t - ~ ~ / ~ R ~ . ~
~ 9. BEGIN BUILDING CONSTRUCTION AS BUILDING PAD IS BROUGHT TO FlNISHED GRADE. < - . ~ E << < ow ~ n , , ~ .,a, . 4 , , ' n
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i 10. ALL GRADED AREAS SHALL BE SEEDED WITHIN 15 DAYS OF ATTAINING PROPOSED GRADES OR WITHIN 15 DAYS AFTER GRADING ACTMTY IS HALTED. . ~ jra ~ i ~ - _ _ ° ` ~ _ T ° - ° _ . - ° ° ° ° ° _ ~ - m ti • ~ ~
11. A MONTHLY SITE INSPECTION WILL BE CONDUCTED TO DETERMINE WHICH AREAS CAN BE TEMPORARILY OR PERMANENTLY SEEDED, WHICH DEVICES .;...;:'a,~:'~•::=- ~ ~„~u~0,00.00~J~, ~ 1-- •m 9 "~'~i N~ ~ ve . _ 9~
NEED MNNTENANCE, REPAIR, ETC., AND ENSURE THAT THE EROSION CONTROL MEASURES ARE PERFORMING ADEQUATELY. THE CONTRACTOR SHALL .________________________________".:,:rYr / a_- ~ ~ _ _ . _ .
INSPECT, MAINTAIN AND REPAIR ALL DEVICES PRIOR TO THIS INSPECTION, AND SHALL PERFORM ALL WORK THAT IS REQUIRED AS A RESULT OF THE ~~..`_,-~._________.___..__________.___________._____.____J, i r - ~ e~
INSPECTION. ~ I o ~ ~ ~ o r cn i i ' ~ 03-SP-103
12. STABILIZE SITE AS AREAS ARE BROUGHT TO FlNISHED GRADE WITH VEGETATION OR STONE BASE. MAINTAIN DM:RSIONS, INLET PROTECTION AND ~ ~ ~ ~ / ~ PROJECT MANAGER DEPARTMENT MANAGER
Lj') , M) . SEDIMENT BASINS UNTIL SITE IS COMPLETELY STABIlJZE0. 1 0 ` APPROVED R KING R KING
V1 f C\! N7 ~ _-~____.._~....----__..~________.______......-.___---__.__`_~_----___._.__------.~----_____T WN OF CARY _ ! LEAD DESIGN PROF. CHECKED
~ 13. FERTILIZE, SEED AND MULCH ALL PERVIOUS AREAS ACCORDING TO SEEDING SCHEDULE SHOWN AND THE LANDSCAPING PLAN. SEE SPECIFlCATIONS ~ is I N FOR ADDITIONAL INFORMATION. ~ ~ ~ l~r~ n r
t ~ D SMITH J BECKMAN
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t 14. REMOVE SEDIMENT FROM SWM POND UPON STABILIZATION OF CONTRIBUTING AREAS. INSTALL PERMANENT RISER, OUTLET PROTECTION, ETC. Planning \ \ Date TASK /PHASE NUMBER DRAWN BY
N 15. WHEN CONSTRUCTION IS COMPLETE AND ALL AREAS ARE STABILIZED CALL FOR A FINAL INSPECTION 460-4935 BY THE EROSION CONTROL k; Engineering Date 00000 B HARRIS
E OFFICER. I z u u, . } PROJECT NUMBER DRAWING NUMBER
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16. IF SITE IS APPROVED REMOVE ANY TEMPORARY DIVERSIONS SILT FENCES SEDIMENT TRAPS ETC. AND RE-GRADE SEED OR STABILIZE ANY a~ ~ 0 30 60 90
RESULTING BARE AREAS. ALL REMAINING PERMANENT EROSION CONTROL DEVICES SHOULD BE INSTALLED. NC402025 C1 1 m02
~ z SCALE IN FEET