20091100 Ver 1_401 Application_20091009

' ` Soil & Environmental Consultants, PA
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
www.SandEC.com October 15, 2009
S&EC Project # 11016. P2
To: US Army Corps of Engineers NC Division of Water Quality
Washington Regulatory Field Office 401 Oversight/Express Permitting Unit
Attn: Josh R. Pelletier Attn: Cyndi Karoly
Post Office Box 1000 2321 Crabtree Boulevard, Suite 250
Washington, North Carolina 27889 Raleigh, NC 27604-2260
From: Debbie Edwards
Soil & Environmental Consultants, P.A.
11010 Raven Ridge Road
Raleigh, NC 27614
Re: East Carolina University Dental School
Greenville, Pitt County, NC
$RAID
O C T 1 1 2009
DM - WATER OXITY
WETtAWS AND STORNIWATEII BRANCH
On behalf of the applicant, East Carolina University (Attn: William Koch), please find attached a complete
application and supplemental information requesting written concurrence from the U.S. Army Corps of
Engineers (USACE) and the North Carolina Division of Water Quality (NCDWQ) that the activities
proposed below may proceed utilizing Nationwide Permit 39 and Water Quality Certifications 3705. In
addition, written authorization from the NCDWQ is requested for activities proposed to impact Tar-
Pamlico Riparian Buffers. Please contact me at [phone] if you have any questions or require
additional information.
PROJECT SUMMARY
Project Name East Carolina University Dental School
Project Type Institutional
Owner / Applicant East Carolina University
Count Pitt
Nearest Town Greenville
Waterbod Name UT to Schoolhouse Branch
Basin / Sub-basin Tar-Pamlico /03-03-05
Index Number 28-93
Class C; NSW
IMPACT SUMMARY (Jurisdictional Wntarcl
- --------.._ - -
Stream Impact (acres):
0.003
Wetland Impact (acres): 0.375
Open Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres): 0.405
Total Stream Impact (linear 398
Total Riparian Buffer Impaare feet): 1
,330
Attachments:
Pre-construction Notification Application Form
Agent Authorization
USGS Vicinity Map & Pitt County Soil Survey
DWQ Buffer (DWQ Project # 2008-0607)
NCEEP Acceptance Letter (dated 10/5/09)
Impact Justification Letter (dated 10/7/09)
SMP Conditional 401 Approval Request
Impact Exhibit
Overall Site Plan
Conceptual SMP (DWQ only)
DWQ Application Fee $570.00 (DWQ only)
Charlotte Office: Greensboro Office:
248 LePhillip Court 3859 Battleground Ave., Suite 112
Concord, NC 28025 Greensboro, NC 27410
Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone]
0F \N AA"rf O,
O Nlll=?w T
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information Pik 110
1. Processing ------
1a. Type(s) of approval sought from the
Corps:
®Section 404 Permit ? Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 39 or General Permit (GP) number: N/A
1c. Has the NWP or GP number been verified by the Corps? ® Yes ? No
1d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ® Riparian Buffer Authorization
1e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
? Yes ® No For the record only for Corps Permit:

? Yes ® No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program. ® Yes ? No
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below. ? Yes ® No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
2. Project Information
2a. Name of project: East Carolina University Dental School (r1
2b. County: Pitt
2c. Nearest municipality / town: Greenville O C T I 'a Z009
2d. Subdivision name: N/A
Quasrm
2e. NCDOT only, T.I.P. or state
project no: N/A VVETLANWANDSTOFtMA
3. Owner Information
3a. Name(s) on Recorded Deed: State of North Carolina-East Carolina University
3b. Deed Book and Page No. D.B. 1417, Pg. 458
3c. Responsible Party (for LLC if
applicable): William Koch
3d. Street address: 1001 E. Fourth Street
3e. City, state, zip: Greenville, NC 27858
3f. Telephone no.: 252-328-6858
3g. Fax no.: N/A
3h. Email address: N/A
Page 1 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ® Other, specify: Applicant-please send correspondence to both
applicant and Agent
4b. Name: William Koch
4c. Business name
(if applicable): East Carolina University
4d. Street address: 1001 E. Fourth Street
4e. City, state, zip: Greenville, NC 27858
4f. Telephone no.: 252-328-6858
4g. Fax no.: N/A
4h. Email address: N/A
5. Agent/Consultant Information (if applicable)
5a. Name: Debbie Edwards
5b. Business name
(if applicable): Soil & Environmental Consultants, PA
5c. Street address: 11010 Raven Ridge Road
5d. City, state, zip: Raleigh, NC 27614
5e. Telephone no.: 919-846-5900
5f. Fax no.: 919-846-9467
5g. Email address: [e-mail]
Page 2of12
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): Parcel ID: 50468 & 47147
1 b. Site coordinates (in decimal degrees): Latitude: 35.6127 Longitude: - 77.4086
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: t 52 acres (project area t12 acres)
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: UT to Schoolhouse Branch (28-93)
2b. Water Quality Classification of nearest receiving water: C; NSW
2c. River basin: Tar-Pamlico 03-03-05; Hydrologic Unit Code 03020103
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application: The properties being developed are bisected by MacGregor Downs Blvd. On the west side of MacGregor
Downs Blvd, the site is forested; on the east side of MacGregor Downs Blvd., the site includes some forested areas and
some areas that have been graded. Additionally, there is existing development and stormwater BMP's on the eastern
portion of this property. The general land use in the vicinity of the project is urban (i.e. residential, commercial and some
industrial) and the subject site is within the City of Greenville's city limits.
3b. List the total estimated acreage of all existing wetlands on the property:
Approximately 0.883
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
Approximately 2,416 linear feet
3d. Explain the purpose of the proposed project:
The purpose of the proposed project is to construct a new East Carolina University (ECU) Dental School and the
associated parking facilities.
3e. Describe the overall project in detail, including the type of equipment to be used:
The overall project is proposing the construction of the ECU Dental School and its associated parking facilities.
The project will include a stormwater pond, road improvements, the dental school and parking facilities. Heavy
equipment typically used for construction and excavation will be employed for this project.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past? ®Yes ? No ? Unknown
Comments:
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
Comments: Jurisdictional Determination Package submitted ®Preliminary ? Final
to USACE on 09/21/09 requesting Final JD
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Soil & Environmental
Name (if known): Steven Ball, Chris Flowers Consultants, PA Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
USACE-site visits with Josh Pelletier on May 15 and August 27, 2009; DWQ site visit with Chris Pullinger on September
24, 2008.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
?Yes ®No ? Unknown
5b. If yes, explain in detail according to "help file" instructions.
N/A
Page 3 of 12
PCN Form - Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
There are no future anticipated phases for this project.
Page 4 of 12
C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
® Wetlands ® Streams - tributaries ® Buffers
? Open Waters ® Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact number - Type of jurisdiction
Permanent (P) or Type of Type of wetland Forested (Corps - 404, 10 Area of impact
Temporary T impact if known DWQ - non-404, other acres
W1 (Area 1) ® P ? T Fill Bottomland ® Yes ® Corps 0
054
Hardwood Forest ? No ? DWQ .
W2 (Area 2) ® P ? T Fill Bottomland ® Yes ® Corps 0
235
Hardwood Forest ? No ? DWQ .
W3 (Area 3) ® P ? T Fill Bottomland ® Yes ® Corps

Hardwood Forest
? No
? DWQ 0.017
W4 (Area 4) ® P ? T Fill Bottomland ® Yes ® Corps

Hardwood Forest
? No
? DWQ 0.039
W5 (Area 5) ® P ? T Fill Bottomland ® Yes ® Corps

Hardwood Forest
? No
? DWQ 0.030
W6 El P ? T ? Yes El Corps
? No ?DWQ
2g. Total wetland impacts 0.375
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact number - Type of Stream name Perennial Type of jurisdiction Average Impact
Permanent (P) or
Temporary (T) impact (PER) or (Corps - 404, 10 stream length
intermittent DWQ - non-404, width (linear
(INT)? other) (feet) feet)
S1 (Feature C) ® P ? T Fill UT to Schoolhouse ? PER ® Corps 1

Branch
® INT
? DWQ 3 293
S2 (Feature E) ® P ? T Fill UT to Schoolhouse ? PER ® Corps
Branch ® INT ? DWQ 4 105
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P [:1 T El PER ? Corps
? INT ?DWQ

3h. Total stream and tributary impacts 398
3i. Comments:
Page 5 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individual) list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of
impact number - waterbody Type of impact Waterbody type Area of impact (acres)
Permanent (P) or (if applicable)
Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts
4g. Comments: N/A
5. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.

Pond ID
Proposed use or purpose Wetland Impacts (acres) Stream Impacts (feet) Upland

number (acres)
of pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1 Stormwater N/A N/A N/A N/A N/A N/A 1.37
P2
5f. Total 1.37
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ®No If yes, permit ID no:
5i. Expected pond surface area (acres): 1.04
5j. Size of pond watershed (acres): 27.01
5k. Method of construction: Excavation
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If an impacts require mitigation, then you MUST fill out Section D of this form.
6a.
? Other:
Project is in which protected basin?
man
El Catawba ? El Randleman
Rand
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number - Reason for impact Buffer Zone 1 impact Zone 2 impact
Permanent (P) or Stream name mitigation (square feet) (square feet)
Temporary T required?.
61 ®P ? T Stormwater Outfall UT to Schoolhouse ? Yes 670 660
Branch ® No
B2 ?P?T ?Yes
? No
B3 ?P?T ?Yes
? No
6h. Total buffer impacts 670 660
6i. Comments:
Page 6 of 12
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The proposed Dental School and its associated parking and stormwater facility are designed to avoid and minimize
impacts to wetlands, streams and riparian buffers to the maximum extent practicable. The project engineer
modified site plans and has shifted the proposed parking and stormwater facility to the northeast, in addition to
utilizing retaining walls in order to minimize impacts to the higher quality streams, wetlands and riparian buffers.
For further justification, the project engineer has provided a letter elaborating on the design requirements of East
Carolina University. Please see attached letter from Todd Fisher of ColeJenest & Stone dated October 7, 2009.
Furthermore, the applicant is aware of the regional conditions associated with the Nationwide Permits 39. With
respect to commercial/institutional development conditions (NWP 39-Regional Conditions section 4.0) the applicant
does not anticipate any impacts to streams or wetlands associated with stormwater facilities, there are no impacts
associated with single-family recreation facilities, there are no permanent wetland or stream fills proposed within the
floodway/floodplain and the stream classification for this project is C; NSW (i.e. not Outstanding Resource Waters,
High Quality Waters, Coastal Wetlands or wetland ad'acent to these waters).
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Erosion & Sediment Control plan will require measures to protect water quality during construction activities (i.e. silt
fencing, orange fabric fencing, sediment basins etc.).
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for ® Yes ? No
impacts to Waters of the U.S. or Waters of the State?
2b. If yes, mitigation is required by (check all that apply): ? DWQ ® Corps
? Mitigation bank
2c. If yes, which mitigation option will be used for this
project?
®Payment to in-lieu fee program
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter) Type Quantity
3c. Comments:
4. Complete if Making a Payment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ® Yes
4b. Stream mitigation requested: 0 linear feet.
4c. If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d. Buffer mitigation requested (DWQ only): 0 square feet
4e. Riparian wetland mitigation requested: 0.375 acres
4f. Non-riparian wetland mitigation requested: 0 acres
4g. Coastal (tidal) wetland mitigation requested: 0 acres
Page 7 of 12
PCN Form - Version 1.3 December 10, 2008 Version
4h. Comments:
Because proposed permanent impacts exceed 1/10 acre of jurisdictional wetlands the applicant proposes
compensatory mitigation for impacts to riparian wetlands. After verifying that there are no known private mitigation
banks with the requested credit type located in the hydrologic unit where the impacts talk place
(http://h2o.enr.state.nc.us/ncwetlands/documents/mitigation_banks.doc), an In-Lieu Fee Request was submitted to the
NC Ecosystem Enhancement Program (NCEEP). Please see attached NCEEP Acceptance letter dated October 5,
2009 for up to 0.75 acres of riparian wetland compensatory mitigation payment. Furthermore, permanent impacts are
proposed to unimportant/intermittent streams; typically mitigation is not required by the USACE or the NCDWQ for
impacts to unimportant/intermittent streams, therefore no stream mitigation is proposed. If however, after review of the
above mitigation plan the USACE/NCDWQ determines mitigation other than riparian wetland mitigation is required, the
applicant will utilize the Ecosystem Enhancement Program (NCEEP) for any additional mitigation requirements.
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
N/A
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires ? Yes ® No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
6c. 6d. 6e.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet) (square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments: According to 15A NCAC 02B.0259(6), impacts proposed are an allowable use and do not require
compensatory mitigation.
Page 8 of 12
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. Does the project include or is it adjacent to protected riparian buffers identified ® Yes ? No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
Comments: The project requires a SMP, as a result the proposed BMP treats ? Yes ® No
nitrogen before entering the riparian buffer.
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 70%
2b. Does this project require a Stormwater Management Plan? ® Yes ? No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
Please see attached conceptual SMP. This plan includes a stormwater wet pond that will be treating stormwater from the
proposed project and some existing offsite stormwater. Please see the attached letter from ECU requesting a conditional
401 Approval. As such, an approved SMP will be forwarded to the DWQ upon receipt from the NCDENR Stormwater
Permtting Unit. Furthermore, the applicant is fully aware that impacts to streams/wetlands or the riparian buffer cannot
commence until the SMP is approved and submitted to the 401 Oversight/Express Permitting Review Unit.

2e. Who will be responsible for the review of the Stormwater Management Plan? ? Certified Local Government
® DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project?
? Phase II
3b. Which of the following locally-implemented stormwater management programs ? NSW
apply (check all that apply): ? USMP
? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No
attached?
4. DWQ Stormwater Program Review
? Coastal counties
4a. Which of the following state-implemented stormwater management programs apply ? HQW
El ORW
(check all that apply): ® Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ® No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No
Page 9 of 12
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No
use of public (federal/state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ® Yes ? No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.) ? Yes ® No
Comments: The EA has been submitted to the State Clearing House for review
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ® No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
We have reviewed the "Draft Internal Policy, Cumulative impacts and the 401 Water Quality Certification and Isolated
Wetlands Programs" document prepared by the NC Division of Water Quality on April 10, 2004, version 2.1. The draft
states that publically funded developments may or may not result in cumulative impacts. It also states that the
development of a regional, public park or a new library is unlikely to result in cumulative impacts; therefore a dental
school would most likely fall into this same classification and would most likely not result in cumulative impacts. We
anticipate that the DWQ will advise us if any additional information is needed.
4. Sewage Disposal (DWQ Requirement)
4a. 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.
This project will connect to the City of Greenville's Sanitary Sewer System. The City will ensure that the capacity of their
treatment facility will not be exceeded.
Page 10 of 12
PCN Form - Version 1.3 December 10, 2008 Version
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
i El Yes ® No
mpacts?

5c. If yes, indicate the USFWS Field Office you have contacted ?
Raleigh
. ? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
NHP records within a 5-mile radius of the boundary of the proposed ECU Dental School area were investigated on
August 11, 2009. A file search for federally protected species within a 5-mile radius of the evaluated area was preformed
through the NHP office in Raleigh, NC. These records were updated utilizing the NHP virtual workroom (NHP 2009) and
by requesting element occurrence identifications from NHP staff. No potentially suitable habitat for any of the five (5)
federally protected species documented in Pitt County is located within the area evaluated for the ECU Dental School
project.
References: North Carolina Natural Heritage Program [NHP]. 2007. N.C. NHP Internet-based search:
"http://www.nconemap.com/data.html" Accessed August 11, 2009.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
http://sharpfin.nmfs.noaa.gov/website/EFH_Mapper/map.aspx
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
status (e.g., National Historic Trust designation or properties significant in
? Yes No
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
A review of state records at the North Carolina State Historic Preservation Office (SHPO) and North Carolina Office
of Archaeology (OSA) was conducted on August 11, 2009. No historic structures are documented by SHPO within
the area evaluated for ECU Dental School. Four historic structures or areas exist within a 1-mile radius of the
boundary of evaluated area, however these will not be affected in any way by the proposed project. Three
cemeteries are shown on the OSA maps in the vicinity of the proposed project. The closet of these is located
immediately outside the NW portion of the evaluated area, based on the site plan this cemetery will not be affected
by the proposed project. Archeological sites have been identified within a 1-mile radius of the boundaries of the
evaluated area. According to Ms. Susan Myers of the OSA, the proposed site of the ECU Dental School is unlikely
to be of archeological significance and does not warrant excavation or further assessment.
Page 11 of 12
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? NC Floodplain Mapping Program
(http://www. ncfloodmaps.com )
Debbie Edwards October 15,
2009
Applicant/Agent's Printed Name Applicant/Agen s Signature
' Date
(Agent
s signature is valid only if an authorization letter from the applicant
is rovided.
Page 12 of 12
To:9198469467 P•1'1 QA
MAR-06-2008 10:21 From-ECU ENGINEERING ARCH 2523284259
Sail & Environmental Consultants, PA
11010 Raven Ridge Road • !Weigh, North Carolina 27614 • ?how [phone] • Fax: [phone]
www.SandEC.ww
AGENT AUTHORIZATION FORM
All Blanks to be filled in bar the current landowner
Date: ??ZG > !3
The Department of the Army
U.S. Army Corps of Engineers, Wilmington District
P.O. Box 1890
Wilmington, NC 28402-
Attn: _ ??Ta s h f h c e?'
Field Office. ugh
Re: Wetlands Related Consulting and P'erm'itting
To Whom It May Concern:
I, the current RMRM owner, hereby designate and authorize Soil & Envirorunental Consultants, pA to
act in my behalf as my agent in the processing of permit applications, to furnish upon request
supplemental information in support of applications, etc. from this day forward. 'Ilse __? day of
This notification supersedes any previous correspondence concerning the agent for this project
NO*nCE: This authorisation, for liability and professional courtesy reasons, is valid only for government
officials to enter the property when accompanied by S&EC staff. You should call S&EC to arrange a site
meeting prior to visiting the site.
withaurn 0 x-4itom AssoCi,?e-
4J --Lot-
Print Property Owner's Name. of e1 . OAS Property Owner's Signature
cc: Mr. Chris Flowers //
Soil & Environmental Comsultants, PA

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236 UFhillip Court, Suitc C 3817-E Lawndalc Driwc
Concord. NC 28025 Greensboro NC 27455
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Survey Map
Project Mgr.: ECU Site ;
Soil & Environmental Consultants, PA
BJAC, pa 11010 Raven Ridge Rd.- Raleigh, NC 27614
sca?e: Pitt County, NC [phone] - [phone]
1 1,320' Web Page: wvw.SandEC.com
2/27/05 Sheet 35 and 41
W ArFgoG
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Steven Ball
Soil & Environmental Consultants
11010 Ravenridge Road
Raleigh, NC 27614
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
January 7, 2009
.IAN I 2- ? A1)9
Subject Property: ECU Dental School; Greenville, NC
UT to Schoolhouse Branch, Tar-Pamlico River Basin (03-03-05; C, Sw; NSW; 27-85)
On-Site Determination for Applicability to the Tar-Pamlico River Riparian Area
Protection Rules (15A NCAC 2B .0259)
Dear Mr. Ball:
At your request I conducted an on-site determination to review features located on the subject
property for applicability to the Tar-Pamlico Buffer Rules (15A NCAC 2B .0259). The features
are labeled as "2008-0607" on the attached map initialed by me on January 7, 2009. The
property is located on the west side of West Arlington Boulevard, approximately 0.3 miles south
of the intersection of West Arlington Boulevard and NC HWY 43, in Greenville, NC.
The Division of Water Quality (DWQ) has determined that the portion of the surface water
that is circled, highlighted in blue, and labeled as "2008-0607" on the attached map is at
least intermittent and is SUBJECT to the Neuse Buffer Rule. The portion of the surface
waters highlighted in pink and labeled on the attached map is ephemeral and NOT
SUBJECT to the Neuse Buffer Rule. These features and their associated buffers should be
identified on any future plans for this property. The owner (or future owners) should notify the
DWQ (and other relevant agencies) of this decision in any future correspondences concerning
this property. This on-site determination shall expire five (5) years from the date of this letter.
Landowners or affected parties that dispute a determination made by the DWQ or Delegated
Local Authority that a surface water exists and that it is subject to the buffer rule may request a
determination by the Director. A request for a determination by the Director shall be referred to
the Director in writing c/o Cyndi Karoly, DWQ, 401 Oversight/Express Review Permitting Unit,
2321 Crabtree Blvd., Suite 250, Raleigh, NC 27604-2260. Individuals that dispute a
determination by the DWQ or Delegated Local Authority that "exempts" a surface water from
the buffer rule may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. Applicants are hereby notified that the 60-day statutory appeal time does
not start until the affected party (including downstream and adjacent landowners) is notified of
this decision. DWQ recommends that the applicant conduct this notification in order to be
North Carolina Division of Water Quality Internet h2o.enr.state.nc.us
943 Washington Square Mall Phone: [phone] One
Washington, NC 27889 FAX [phone] NorthCarohna
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper AWMA711y
Coleen H. Sullins, Director
Division of Water Quality
Chuck Wakild, P.E., Deputy Director
Division of Water Quality
DWQ Project # 2008-0607
Pitt County
Carolina Stone - Fort Barnwell Mine
Page 2 of 2
November 5, 2008
certain that third parry appeals are made in a timely manner. To ask for a hearing, send a written
petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This
determination is final and binding unless you ask for a hearing within 60 days.
This letter only addresses the applicability to the buffer rules and does not approve any activity
within the buffers. Nor does this letter approve any activity within Waters of the United States
or Waters of the State. If you have any additional questions or require additional information
please call me at [phone].
Sincerely,

Chris Pullinger/Environmental Specialist
Division of Water Quality
Surface Water Protection
Washington Regional Office
Enclosures: copy of 1:24,000 scale USGS Topographic Survey map, Greenville SW quad
copy of sheets 34 & 41, 1974 version of the Pitt County Soil Survey
cc: DWQ 401 Oversight/Express Unit
WaRO File Copy
Jonas Hill, Pitt County Planning Department
East Carolina University, 1001 East Fourth Street, Greenville, NC 27858
Filename: 2008-0607
PITT COUNTY, NORTH CAR01-11
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r
Ecowstem k
PROGRAM
October 5, 2009
Michael Talton
East Carolina University
1001 E. Fourth St.
Greenville, NC 27858
Project: ECU Dental School
Expiration of Acceptance: July 5, 2010
County: Pitt
The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program (NCEEP) is willing to accept
payment for impacts associated with the above referenced project. Please note that this decision does not assure that the payment will
be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the applicant to contact these
agencies to determine if payment to the NCEEP will be approved. You must also comply with all other state federal or local
government permits. reeulations or authorizations associated with the proposed activity including SL 2009-337: An Act to Promote
Compensatory Mitigation by Private Mitigation Banks
This acceptance is valid for nine months from the date of this letter and is not transferable. If we have not received a copy of the
issued 404 PermitA01 Certification/CAMA permit within this time frame, this acceptance will expire. It is the applicant's
responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permit(s) an invoice will be issued based
on the required mitigation in that permit and payment must be made prior to conducting the authorized work. The amount of the In
Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and policies listed at www,nceep.net.
Based on the information supplied by you the impacts that may require compensatory mitigation are summarized in the following
table.
River
Basin CU
Location Stream (feet) Wetlands (acres) Buffer I
(Sq. Ft.) Buffer II
(Sq. Ft.)
Cold Cool Warm Riparian Non-Riparian Coastal Marsh
Impact Tar-Pamlico 03020103 0 0 0 0.375 0 0 0 0
Credits Tar-Pamlico 03020103 0 0 0 0.75 0 0 0 0
Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. If the regulatory agencies require
mitigation credits greater than indicated above, and the applicant wants NCEEP to be responsible for the additional mitigation, the
applicant will need to submit a mitigation request to NCEEP for approval prior to permit issuance. The mitigation will be performed
in accordance with the Memorandum of Understanding between the N.C. Department of Environment and Natural Resources and the
U.S. Army Corps of Engineers dated November 4, 1998.
If you have any questions or need additional information, please contact Kelly Williams at [phone].
cc: Cyndi Karoly, NCDWQ Wetlands/401 Unit
Josh Pelletier, USAGE- Washington
Chris Pullinger, NCDWQ-Washington
Debbie Edwards, agent
File
Sincerely,
b- aTV? tR_
William . Gilmore, PE
Director
R.utori hg...
F .. Prot" awftat&
QOL,
RUDER
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-715-0476 / www.nceep.net
150 Fayetteville Street, Suite 950 Raleigh, NC 27601 Charlotte
„919 719 1800 f,919 719 1819 ,t,www.coleieneststone.com Raleigh
Wilmington
ColeJenest
& Stone
Shaping the Environment
Realizing the Possibilities
Land Planning
Landscape Architecture
Civil Engineering
Urban Design
October 7, 2009
Ms. Debbie Edwards
Soil and Environmental Consultants, P.A.
11010 Raven Ridge Road
Raleigh, North Carolina 27614
Re: 50207.00 - East Carolina University Dental School
Dear Debbie:
In accordance with funding authorized by the North Carolina General Assembly
under Session Law 2008-107, East Carolina University (ECU) proposes to construct
a new Dental School on the University's Health Sciences Campus in the City of
Greenville. The project involves a new 5-story, 209,000 square foot dental school
building and associated site improvements (parking lot, utilities, stormwater
management basin) to be constructed on a 12-acre site at the intersection of NC
Highway 43 and MacGregor Downs Road (SR 1202). The project site was selected
from among multiple alternative sites evaluated during the project advance planning
stage.
As documented in reports prepared by Soil and Environmental Consultants, P.A.,
(SREC) dated February 29, 2008, and August 12, 2009, wetland and jurisdictional
channel areas have been identified on the project property. While ECU has taken
steps to minimize impacts to mapped wetland and stream areas, in order to support
the design program, impacts to existing jurisdictional areas are unavoidable.
Based on the following formulation, ECU has determined that a minimum of 376
parking spaces are required to support the dental school:
1. 130 operatories at 75% = 98 spaces.
2. 165 students at 1.1 diversity =150 spaces.
3. 70, faculty at 1.1 diversity = 64 spaces.
4. 70 staff at 1.1 diversity = 64 spaces.
The proposed parking has been arranged so as to maximize the use of the available
land area between the existing roadway, tributary stream, and associated riparian
buffer areas. The parking lot design will utilize a retaining wall along the southwestern
edge to minimize encroachment into jurisdictional areas. The proposed layout plan
yields a total of 315 parking spaces within the main parking area and within the
patient drop-off area immediately in front of the building. In order to meet the
additional parking needs of the project, the parking lot has been expanded into the
only remaining space, which is located southwest of the main parking lot, between
the public street and the riparian buffer associated with the adjacent tributary stream.
The expanded parking area provides an additional 51 parking spaces, for a
combined total of 366 spaces.
P:\sdskprot150207\-Correspondences\Permitting\NCOWQ - Stormwater110051 Impact JustMcation.doc

3? * 50207.00 - East Carolina University Dental School
October 7, 2009
Page 2
The above information is provided in support of the wetlands permit applications
currently being prepared by S&EC. Please contact our office should you require
anything additional.
Best regards,
COLEJENEST & STONE, P.A.

R. Todd Fisher, PE
Senior Project Manager
reg
cc: Mr. Terence McCabe, AIA - BJAC
Mr. Michael S. Cole, Sr., RLA, LEED AP - CJS
Mr. C. Brian O'Haver, RLA - CJS
Mr. Daniel J. McGlamery, El, LEED AP - CJS

P:lsdskpro}15020T CorrespondenceslPermitgngWCOWQ - Stormwater110051 Impact Jusfification.doc
E A S T
CAROLINA
UNIVERSM
Campus Operations
Facilities Engineering and Architectural Services
East Carolina University
1001 East Fourth Street • Greenville, NC 27858-4353
252-328-6858 office • 252-328-4259 fax
Pro.
vect
File C
ode'
ptlot? ocr za 9
117st" -_ "
October 7, 2009
Ms. Cyndi Karoly
NC Department of Environment and Natural Resources
Division of Water Quality - 401 Oversight / Express Review Permitting Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604
Subject: East Carolina University School of Dentistry
Code: 40883 Item: 301
SCO #070705401
Dear Ms. Karoly:
The proposed East Carolina University School of Dentistry will require a stormwater
management plan (SMP) to meet the requirements of the NPDES Phase II stormwater
program. The SMP for this project has been submitted to the Stormwater Permitting Unit
of the NC Department of Environment and Natural Resources-Division of Water Quality
for their review and approval. Per condition No. 12 of General Certification 3705, we are
requesting a conditional 401 Approval for East Carolina University. We understand we
will need to forward two (2) copies of the approved SMP to the Division of Water Quality
401 Oversight/Express Review Permitting Unit upon receipt. Additionally, we are fully
aware that the approval will be conditioned so that impacts to wetlands, streams and/or
riparian buffers cannot commence until after the SMP is approved and submitted to your
office.
If you have any questions or need additional information, please do not hesitate to call.
Very truly yours,
Michael Talton, Project Manager
Facilities Engineering & Architectural Services
Cc: Mr. Terence McCabe, BJAC
Mr. Lloyd Nobles, ECU
East Carolina University is a constituent institution of the University of North Carolina. An Equal Opportunity/Affirmative Action Employer.
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East Carolina University Dental School
Conceptual Stormwater Plan
Permit
4?
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted.
The Required items Checklist (Part ill) must be printed, filled out and submitted along with all of the required information.
(to be provided by DWQ)
??oF w a r?-goc
o
t 20000INFORMATION
Protect name East Carolina University Dental School
Contact person R. Todd Fisher, PE
Phone number
Date
Drainage area number
[phone]
10/9/2009
l .1DESIGN INFORMATION
Site Characteristics
Drainage area 1,176,566 ftz
Impervious area, post-development 823,589 ftz
% impervious 70.00%
Design rainfall depth 1.0 in
Storage Volume: Non-SA Waters
Minimum volume required 66,672 ft3 OK
Volume provided 70,349 ft3
OK, volume provided is equal to or in excess of volume required.
Storage Volume: SA Waters
1.5" runoff volume
Pre-development 1-yr, 24-hr runoff
Post-development 1-yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the 1 yr 24hr storm peak flow required?
1-yr, 24-hr rainfall depth
Rational C, pre-development
Rational C, post-development
Rainfall intensity: 1-yr, 24-hr storm
Pre-development 1-yr, 24-hr peak flow
Post-development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 1 Oft vegetated shelf elevation
Bottom of 1 Oft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state-required temp. pool?
Elevation of the top of the additional volume
ft3
ft3
ft3
ft3
ft3
Y (Y or N)
3.1 in
0.50 (unitless)
0.75 (unitless)
5.28 in/hr OK
14.40 ft3/sec
13.52 ft3/sec
-0.88 ft3/sec
26.49 fmsl
25.00 fmsl
31.00 fmsl
25.50 fmsl
24.50 fmsl Data not needed for calculation option #1, but OK if provided.
21.00 fmsl
20.00 fmSI Data not needed for calculation option #1, but OK if provided.
1.00 It
N (Y or N)
fmsl
Form SW401-Wet Detention Basin-Rev.8-9/17/09 Parts I. & II. Design Summary, Page 1 of 2
Permit No
(to be provided by DWQ)
11, bEStGN INFORMATION -
Surface Areas
Area, temporary pool 45,267 ftZ
Area REQUIRED, permanent pool 38,827 ftZ
SAIDA ratio 3.30 (unitless)
Area PROVIDED, permanent pool, Ace-_Pw 42,110 ftZ
Area, bottom of 1 Oft vegetated shelf, Aba?_swf 37,448 ftZ
Area, sediment cleanout, top elevation (bottom of pond), Abotym d 46,950 ftZ
Volumes
Volume, temporary pool 70,349 ft3
Volume, permanent pool, Vpe--pW 163,176 ft3
Volume, forebay (sum of forebays if more than one forebay) 32,543 ft3
Forebay % of permanent pool volume 19.9% %
SA/DA Table Data
Design TSS removal 90 %
Coastal SAIDA Table Used? N (Y or N)
Mountain/Piedmont SAIDA Table Used? Y (Y or N)
SAIDA ratio 3.30 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b) Y (Y or N)
Volume, permanent pool, V,?_,01 163,176 ft3
Area provided, permanent pool, A,._p, 42,110 ftZ
Average depth calculated 3.23 ft
Average depth used in SAIDA, da,, (Round to nearest 0.5ft) 3.0 ft
Calculation option 2 used? (See Figure 10-2b) (Y or N)
Area provided, permanent pool, Ap,.-p a 42,110 ftZ
Area, bottom of IOft vegetated shelf, Abot_,u 37,448 ftZ
Area, sediment cleanout, top elevation (bottom of pond), Abot-p,,Id 46,950 ftZ
"Depth" (distance b/w bottom of 1 Oft shelf and top of sediment) 3.50 ft
Average depth calculated ft
Average depth used in SAIDA, dav, (Round to nearest 0.5ft) ft
Drawdown Calculations
Drawdown through orifice?
Diameter of orifice (if circular)
Area of orifice (if-non-circular)
Coefficient of discharge (Co)
Driving head (Ho)
Drawdown through weir?
Weir type
Coefficient of discharge (CW)
Length of weir (L)
Driving head (H)
Pre-development 1-yr, 24-hr peak flow
Post-development 1-yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build-out?
Drain mechanism for maintenance or emergencies is:
Form SW401-Wet Detention Basin-Rev.8-9/17/09
Y (Y or N)
3.50 in
in'
0.60 (unitless)
0.47 ft
(Y or N)
(unitless)
(unitless)
ft
ft
13.56 ft3/sec
7.47 ft3/sec
0.26 ft3/sec
3.00 days
3 :1
10 :1
10.0 ft
3 :1
2.0 :1
Y (Y or N)
1.0 ft
N (Y or N)
Y (Y or N)
Y (Y or N)
OK
OK
OK
OK
OK
OK, draws down in 2-5 days.
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Parts I. & II. Design Summary, Page 2 of 2
NCDENR- WQ Pond Analysis
Charlotte
ECU School of Dentistry
Ha e;gh
CJS PROJECT NO.: 50207 towienest Wilmington
DATE: 10.02.09 BY: DJM & Stone
REVISED: RVW: ELE-ji Land Planning + Landscape Architecture + Civil Engineering + Urban Design
NCDENR BMP Design Manual, July 2007
SURFACE AREA REQUIREMENTS
Total Drainage Area to Pond =
Post-Developed Impervious Area* _
Average pool depth =
Designed permanent pool elevation =
27.01 Acres
18.91 Acres, or 70.0 %
3.86 ft
25.0
*Includes 2.40 acres of future impervious area. Does not include 1.12 acres that enter cistern from roof leaders.
From Table 1.1 in the BMP Design Manual the required Surface Area to Drainage Area
Ratio (SA/DA) for the average permanent pool depth shown above = 3.30
Surface Area Required = SA/DA / 100 x Drainage Area: 0.89 Acres
Surface Area Provided (at permanent pool): 0.97 Acres
Refer to Storage - Elevation Data Chart
WATER QUALITY VOLUME (WQv)
Rv = runoff coefficient (Runoff/Rainfall)
WQv =Water Quality Volume (1-inch water quality control)
I = % Impervious
("Simple Method" - Schueler)

WQv = 1.0"*Rv*A
12
Rv = 0.68
WQv = 1.53 Ac. Ft.
66671 Cubic Feet Required
This volume must be released over a minimum period of 24 hours.
Page 1 of 3
Water Quali Pond
ECU School of Dentist Raleigh `h igh
?i Wilmington
CJS PROJECT NO.: 50207 C??. L
DATE: 10.02.09 BY: DJM & StOf1e
REVISED: RVW: RTF Land Planning + tandwapeArehitwurc ? Ciril Engineering + Urban Design
BMP Basin Stora e - Elevation Data

Elevation
Areas
Area ac Inc. Vol.
ac-ft Total Accum.
Vol. ac-ft Accum. Det.
Vol. ac-ft
Notes
0.00 0 0.00 0.000 0.00
20.00 24,760 0.57 0.000 0.000 0.00
21.00 28,477 0.65 0.611 0.611 0.00
22.00 30,956 0.71 0.682 1.293 0.00
23.00 33,509 0.77 0.740 2.033 0.00
24.00 36,121 0.83 0.799 2.832 0.00
25.00 42,110 0.97 0.898 3.730 0.00 PPv,
26.00 48,424 1.11 1.039 4.770 1.04
27.00 51,414 1.18 1.146 5.916 2.19
28.00 54,460 1.25 1.215 7.131 3.40
29.00 57,563 1.32 1.286 8.417 4.69
30.00 60,722 1.39 1.358 9.774 6.04

Design Permanent Pool Elevation (PPe) = 25
Required Surface Area at PPe (PPsa) = 0.89 ac-ft OKAY
Average Depth at Ppe (PPv/PPsa) = 3.86
WQv = 1.53 ac-ft
Elevation to hold Water Quality Volume = 26.49
Page 3 of 3
~ ~ ~
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~ _ U TOTAL PROJECT AREA 11.600 AC ® -
PROPOSED POND ~ ~ FEA R , , i CHANNEL- ~ ~
, - °~w., wee '^~.`n'.'., r
P.N 50468 P.N.47147 TOTAL ~ ~~f~.~, r ~ -.~.~~t ~ ~ ~ f ~
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? f 1?•• 1 f 1 1 1 f 1 f 1 1 1 f 1 f 1•/ f it i ~ ~ - , ~ ~ PROPOSED
S 4 ~ t 1 w u . ~ s,, f. f L.i , . . STORMWATER BMP wEr PoNO STATE OF NORTH CAROLINA
i ~ _r SIT' AREA 21.961 AC 29.755 AC 51.716 AC E ~
v ~ - ~ _ . ~ ~ _ ~ pa. _ - : ~y ~ ~ ~ ; t D.B. 1902 PG. 606
~ , v ~ ~°r ~ ~ FEATURE A ~ ~ ay w•. ate. P.N. 39306
y a W~ I ~ N i
WETLANDS AREA 0.779 AC 0,054 AC 0.833 AC ~ ~ ~ ; ~ ~ ~ _-y- . ; , .c H ZONED: MI ~ p eu~q 43 n
' f .yw~ ~ FEATURED , ~ ~ ~ , ® ~ w tti,~,v= 'mo'w dl , r r ~ W ~ _
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NIAL S 'REAM. ~ 1 692 LF O LF 2,314 LF ~ ~t ~ r s. ° . ; ~ ; . ~ «
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~ \ v ~,,,J , yy w , , }C',. ' v
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..t j w~ t a~c:~ ..s / , ~ R ~ PERENNIAL STREAM AREA 0,.307 AC 0 AC 0.351 AC ~ ~ PROPE Tr ; ~ d V. i ~ ~
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p Y Project No. 50207 1® ~
+ Raleigh; North Carolina 27601 JL
$ PA Civil En ineein ColeJenes 9 r 9 CAI ou Issued 10109109
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" w,° t ~ t. 4 e - CB TGP 4 ,85 ~ I r; . 1 , v / 1 ~k~ ~ ~ ~ ~ INV 39.7" ~ ~ ~ ~ `E~ 1'6~" 1
,~i iNV NNW) ~ ) ~ ~ ~ " ~~s ~ E.R..', ~ ~ ~ ~ ' . ~ • , INV ENE) 34.97 INV 39.70 (~J) } IP 48 54 4 ~ 5
"w. f ~ ~F ~ `1~ r, E r;,, ~ ° BNV(E) .55,04 e ~ ~ L.'• . ti3, .ri~V'v~ ~-.n~,~ , MULTI-STORY BRICK ~'~~Oo -
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~ , MARKINGS ~y ~ S I, A, ~ - A. F CB,. TOP ":~3 , L e ,OO~.MIN. ~ # INV 44 (24) ~ ~ FN
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7 ~ ~ S t. , ~ ~Z L}b i l ~ ~ vo."7Y t u ' ~~a ^ INV 28.24 ~ ~ r ; 1 `i ~ ~ < Z 4 F ~ _ s q rl, ti~ ~ ~i.w'"`.
V+ NV 27:98 (N) /r, J~;, 6 ~ ~ , x, ~ , w.._ , t x. , ,
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r^••-" u O s,a . .r '4 5 v it p t ~ . iN ~ t°. ~ ~,'4 1 '37,0 i E ~ e .V l . y- ~ ~ . ~r 5 y ,
a s~ ~ , - -,o ~ , 5 . , . ; ~ 2.~ ~ 0 ~ ~ ` i, .r
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6,i0 5 r t~= ~ 'ti`t' ~ 37:0 ~ , r' i , . ~ } ,,r EASEM NT 1 , • ~5 D I'' ~ , a~ ¢ : ' ~ ~ f PROPOSED HIGH POINT
~ , D.B. P-45 PG. 472 ~ „ ; o-,. Ul 1~.~ - ~ 1 34,50., ~ ` V ` • lr - ~ - ~ - , 1 1 ~ ; ~ ~ e ~ ~ ~ 5~ ~ ~ y ~ ~ / `~D RI A13
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s ~ t - ~ - ,1
~ wr I _ L~ PROPOSED ROOF s, ~ , ~ ~ ~ ~ 1 ' ~ ~ PROPOSED STORM DRAINAGE ,t
' °C y 4,, ~ ~ LEADER CLEANOUT 1~{Di'~~Q~Y .r
, 3.50 5 r ~ ; 1 i 1 ` w^ , . G , . , [J~+ ; i ~ ~ N T E ~d ~ ~ ~ w t
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t , 4 / , / W/ CLEAN-OUT
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yr" ~ ~ :o , 35,5 ' fit., . ~ o , . r~` ` 36.0 CB PROPOSED CATCH .BASIN . _ Dr UP 40.76
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~ ~ - , ~ ,.d,,., ~ BW 33.0 , : 0 . r l ~`bEBRiS ,•10:
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r ~ ~ 34.0!} r\\~ . ~ ' j - ; ~ ~ ` a 33.0 a , ~y ~j ~~l - - PROPOSED DROP INLET - ~ ~ / ~ D1 EAST CAROLINA SCHOOL
,t 33.50 .s ffr ~r 3.00 3.50 ;t . , I ! FOREBAY ~ v. ~ , , ~ ~ y ~ ~ a.. 32.50. ~ : , CB OP 4 IN ~ OF DENTISTRY
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< STORMUVATER BMP POND \ . ° 3 4 s , r~ < ? 4X o AN6 Ct1T oU a ~ 11 , : , 32.0 . _ . v`.:: ~ _ °AND CUT OUT DITCH ~ NAGNEIICNDRTH PLAN NORTH 111 : DI TGP 4t +~SEE SHEET 0402 FOR GENE6VAL NOTES AND
r / : - ~ PERMANENT POOL ELEV - 25,00 \ - TW s.. ~ E ~4,. ,.,r V BW 31.0 ~ .,>i~ ,A~ ~ ~j , ~ ~ ~ ~ ~ INV IN 37
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r 3 ~ ~ , ~ J ° ~ ~ ? f ~ ~ I ~ ~ ~ , ~ ' ~ 1 r ? 3720467800J, DATED JANUARY 2, 2004, DRAWN BY DAM
` ~ PROPOSED RIP RAP ~ ~ j ~ ~ I ~ ; ~ ~l ~ r i ! , ` / f ` ~ a N ~ ~ ~ k NECKED BY RTF E~ \ 2. NO CONSTRUCTION, DEVELOPMENT, OR STORAGE OF MATERIALS
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PLACE WITHIN THE STREdM, SIDE SE OF THL LINE DRAINAGE PLAN SIDE X35' 2. CONTRACTOR IS RESPONSIBLE FOR PLACING BARRICADES USING FLAG MEN, ETC. AS
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4. m m t :u 3. ALL PAVEMENT CUTS, CONCRETE OR ASPHALT, ARE TO BE REPLACED ACCORDING TO
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C _ SHEET NUMBER SCALE; 1" - 40
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INLET ZONE 35~ OF
SURFACE AREA
INLET ZONE 25~ OF SURFACE AREA
ENERAL NOTES: G OF ESUR~ACE 2AREA
i. AREA UNDER EMBANKMENT SHALL BE CLEARED, GRUBBED, AND STRIPPED Of ANY VEGETATION AND ROOT MATERIAL. THE BASIN AREA SHALL BE CLEARED,. C~ OUTLET ZONE 15%
2. THE FILL MATERIAL FOR THE EMBANKMENT SHALL BE FREE OF ROOTS OR OTHER WOODY VEGETATION AS WELL AS DVERSIZED STONES, ROCKS, ~ OF SURFACE AREA $li Vdesl NargettSt
ORGANIC MATERIAL OR OTHER 0&IECTIONABLE MATERIAL. THE EMBANKMENT SHALL 8E COMPACTED BY TRAVERSING WITH EQUIPMENT WHILE BEING CONSTRUCTED. SPILLWAYS SHOULD NOT BE CONSTRUCTED THROUGH FILL SECTIONS. ALL SPILLWAYS SHOULD BE LINED AND/OR RIPRAPPED.
3, SEDIMENT SHALL BE REMOVED AND TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT. HAS ACCUMULATED TO DEPTH SHOWN ON STANDARD, I r~ Halefgh, NC 27G03 F~0 ( 1 1, DRIVE 5' STEEL POST AT LEAST 24" INTO SOLID .GROUND. 1
REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA IN SUCH A MANNER THAT IT WILL NOT ERODE. \X 9Y9.645.3224_DID 2. USE STAPLES 1' APART HORIZONII_LY AND VERTICALLY TO
4. THE TRAP SHALL BE INSPECTED AFTER EACH RAIN ANO REPAIRS MADE AS NECESSARY. / 1 ATTACH THE FILTER FABRIC TO THE WIRE. FENCE. 1~ 9~ss4s izz4_tan`
5; CONSTRUCTION OPERATION SHALL BE CARRIED OUT IN SUCH A MANNER THAT EROSION AND WATER POLLUTION IS MINIMIZED. 1 FL___~W--- \ X 3. SPACE THE BAFFLES ACCORDING TO THE APPROVED PLAN. www.h~ac,com
6. ALL CUT AND FILL SLOPES SHALL BE 2:1 OR FLATTER, UNLESS CERTIFlED BY REGISTERED GEOTECHICAL ENGINEER.
7, SEDIMENT BASIN EMBANKMENTS SHOULD BE PROVIDED WITH EROSION CONTROL AND STABILIZATION. \ ~ { ~ 4. THE FLOOR OF THE BASIN IN THE .OUTLET ZONE AND • " BERMS SHOULD BE SEEDED IMMEDIATELLY AFTER .THE .BASIN. °
STORAGE AREA MAY BE CONSTRUCTED IN ANY SHAPE PROVIDED THE MINIMUM STORAGE VOLUME REQUIREMENT IS MET. THE BASIN SHOULD a. / ' ~ '1 IS CONSTRUCTED.
ALSO BE ORIENTED SUCH THAT THE FILTER AND THE MAIN FLOW OF WATER AND SEDIMENT ARE ON OPPOSITE ENDS ON THE LONGER BASIN ~ V DIMENSIONS. L / eAR1H ~
9. THE LENGTH OF THE STONE OUTLET (SPILLWAY) IS TO BE BASED ON A 10 YEAR STORM. / BFR~ \ X 5. REFER TO NCESCPDM SECTION #6.65 FOR ADDITIONAL ~fOl~///~~,yip~~ I \ SPECIFICATIONS. S~ & S~,~i,,,,
2X THE BASIN WIDTH TO ALLOW FOR SETTLING. t0. WHENEVER TOPOGRAPHY ALLOWS, THE BASIN LENGTH SHOULD BE TWICE ( ) , 0 0 / ~~'PR°
BAFFLES SHAH BE INSTALLED IN ALL. BASINS; j ,i~ ~c SEAL
11. CkEANOUT STAKES SHALL BE PLACED IN ALL SEDIMENT BASINS AT THE .LOW POINT IN THE BASIN. THE STAKES SHALL BE MARKED SHOWING. THE HALF FULL, CLEANOUT POINT, OF THE BASIN. ~0~ ~.l; o-i361 ~eT o ~ . 2~ C 103 ~'e:
12. SAFETY`FENCING 3' HIGH SHOULD BE PLACED AROUND ALL SEDIMENT BASINS. U(pCy _ ~jCARO'' .
13. FOR DESIGN OF SEDIMENT BASINS, REFER. TO THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES,
FRnSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL 4'-D" 4'-0" MAX. SPACING ~ X ~'~~~n////d~~~f~1
14. FOR SLOPES GREATER THAN 10' IN LENGTH AND PROTECTED BY SILT FENCE AT THE TOE OF THE SLOPE, SLOPE TERRACING WILL BE REQUIRED. (TYPICAL) X X S 5' STEEL POST
15. THE BERM ON SEDIMENT BASINS SHALL BE SEEDED ONCE FlNAL GRADE HAS BEEN REACHED. THE SILT FENCE M BE REMOVED IF PERMISSION '~a CARD<
HAS BEEN GRANTED BY THE CITY LAND DEVELOPMENT INSPECTOR AFTER THE GRASS HAS GERMINATED AND STAB GROUND HAS BEEN ESTABLISHED. FLOW _ o p~r°FESS/p•°.~~
16, WASHED STONE AND. WIRE BACKING SHALL BE USED WITH 51LT FENCE WHENEVER SiIT FENCE IS PLACE AT B" X 6" TRENCH ~ .Z.; ~0 ti9 .,.y
THE TOE OF A SLOPE >10' VERTICAL OR ALONG ANY CHANNEL OR WATER COURSE WHERE 50' OF BUFFER IS NOT PROVIDED. BACKFILL AND COMPACT ~ Q SEAL t' FENCE AND FABRIC 25163
BURIED IN TRENCH
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- _ I STL 12 LE N.T.S. N T. 0 SEDIE BASINS GENERAL N TES E I STL TION .T°S. 3
1.9' 5" .r
~vEw SKIMMER SEDIMENT BASIN 0 (T1P) (TYP) 5"x5"x3/8" 3,5" INLET
DESIGN CRITERIA a S.S. ANGLE ORIFICE
~L
DRAINAGE ; ~ ~t^:. AREA < 10 AC. M~~*t,."`rs~;'" ~ EMBANKMENT 3 B"S.S. ANCHOR 12" ALU, BOLT EPOXYED i 1
(ACRES) ':z:;~plS.~ LENGTH IN PLACE ACCE55 LADDER I
MIN; INFLOW .4r al I ~li
LENGTH TO 2:1 :~w;~i~•+~, ~ h
WIDTH RATIO STRUCTURE T FLOW DIRECTION a~
' ~ MIN, -
~ t _ MAX. LENGTH TO 6:1 r ~ SS ANGLE CUPS • (TYP OF 8)
WIDTH RATIO • n a a:,
~ t' SKIMMER RIP RAP ANCHOR DETAIL a6" RCP
MIN. 1800 :¢q'~:°;" . DEWATE RI N G voLUME (cu. Fr. i # 57 STONE ELEV 2a.oo OUTLET PIPE ~ . _ .W (2) 2.5' WEIRS ELEV 28.00 ~ ~ ~ ~ ~ ~ ~ ~ ,
REQUIRED PER AC. '+`;°7•'••k. I EMERGENCY D ) ~°'`t::>;':;z. _ SPILLWAY T 7, INV= 27.25
'~";a.; ~ v<>, ~ 5.0' SILT FENCE AvERACE AREA ~•'~.'~~t'~ SILT FENCE (INSTALLED ON TWO OF THE T TRASH RACK AND VORTEX PLATE FOUR SIDES; NOT ON SAME CONTRACTOR. TO SUBMIT SHOP
.325 WIDTH W = - ; : L LENGTH f SIDE AS ORIFICE PLAN VIEW DRAWINGS TO CJS PRIOR TO FABRICATION.
SURFACE (Sq. FT. ~„~~r : , 1.0~ 2.0 ELEV 27.25 AREA PER CFS '~,.j, \ l 2.50 RECAST 8'x8' ~ n ~y~ A I~ 1.2.50'1:. VALVE VAULT, d 3,`" ORIFICE ALl~4\J d/,e (V1L
REQUIREQ SO "AREA OF BASIN WATER SURFACE BAFFLES x l.,e' L1 . x q } AT TOP OF PRINCIPAL SPILLWAY 4~ ~ 1 TiNDALl.uV7272 U INV= 25.00 OR EQUAL ~
6>, O 1 e _ MAX. EPTH F FLOW W=5' MI , r _ ~ °
OVER EME GENCY SPILLWAY EMBANKMENT - TT`r . 4 ~ _ UNIVERSITY e ' ' . < PERMANENT
"NOTES: INFLOW _ , - - - - , d . , da STRUCTURE BAFFLES Z-5 MAX, 1 FREEBOARD T=LS' MIN, . , ~ ~Q :e ; : 3.5" ORIFCE ° POOL
1. REFER TO NCESCPDM SECTION X6.64 MIN. 1 • INV= 25.00 A o ~ e. 2nd CONCRETE PLACEMENT Q e° e . EAST V/ll\OLIN11 SVI IDOL
, ~ a DITIQNAL DESIGN SPECIFICATIONS ~ , ' ~ ~ ' • FOR AD e. AFTER BOX IS ANCHORED ° 'd d NOTE: • IN PLACE CONTRACTOR TO ENSURE THAT OUTLET
REGARDING SKIMMER SEDIMENT BASINS. ~ ° c DEWATERING H=2' MIN, c a ~ ° d ~ < .e ' ° ' " 0~ BASE FOOTING TO P OVIDE UNIFORM FACE OF DENTISTRY
2. REFER TO 3 C804 FOR BAFFLE ZONE - - - - / EMERGENCY ',°a ~~a . ~ ~ o ~ .a " BEARING, GROUT IF NECESSARY.
SPACING AND INSTALLATION. ~ ° " ' > FILTER FABRIC \ SPILLWAY ~ • . , r r O ~o~•. N ~ ~ ALL ORIFCE OPENINGS AND PIPE OPENINGS East FI~}~ [?}~QQf
a>t~f ENT , ~'i,\ \ ~ \ SEDIM ,y.,, INTO THE OUILET STRUCTURE SHAII BE
STORAGE ZONE ANTI-SEEP 44- 5 BARS COLLAR ®12 O.C E.W. DATA BLOCK 44-#~ ~ " BOTTOM POND MECHANICALXSEALS FOREALLINPIPESL24" p ® i2" o,C E.W. 10.00' _ AND SMALLER. GCGGI IVIIIG, NC 27858-4353
BASIN DRAINAGE DENUDED BASIN. VOLUME BASIN SURFACE AREA CLEANOUT H Z l T W SKIMMER SKIMMER CONC, BALLAST SEE ANCHOR DETAIL
AREA AREA qio REQUIRED. PROVIDED REQUIREO PROVIDED DEPTH (FT.) (FELT) (FEET} (FEET) (FEET) (FE } PIPE ORIFICE CONC, BA ACRES} -ACRES {CUBIC.. FL) (CUBIC FT) SQ FT. SQ FT. H 2 DIAMETER DIAMETER
10.00 10.00' CONC. BALLAST
SECTION VIEW
11 SILT I BERM N.T.S. TLET U N.T.S. SEDIMENT BASIN SKIMMER T U N.T.S. 2
2'-0' 2'-0"MIN. 2 YEAR FLOW
ARM ASSEMBLY o 0 0 6' WIDTH -RIP RAP BERM STRUCTURE I AND WEIR
D
0 0 °C" ENCLOS RE pQ. Q~~_ _ TOP OF BERM TOP OF BERM ~ ~ ~ r KEY A' ~a,-TOP OF WEIR PERMANENT PO 1 ~ T PERMANENT POOL G [ /"lIV
~ 0, TOP OF WEIR
" ~h _ -qy~^ v tr..R•4 ° ~li'~,~i ~'*~,m'•.V ta,'.°~ a bi~3"v° i
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WATER ENTRY NIT 6 SUITABLE BACKFILL MATERIAL.
PERS('ECTNE YEW WATER QUALITY ORIFICE
•D D
PVC NT SCHEDULE 40 ° ~ BERM AND WEIR SECTII 4ND_ WEIR SECTION BERM AND WEIR DETAIL WATE QUALITY ORIFICE DETAIL PROJECT NUMBER 7G7z~oo
PVC ELBOW IPE PVC PIPE D 1' THICK 4000PS1 ..PVC END CAP ° ° CONCRETE
1 #5 E.W. E.F. D ' ° MAINTENANCE 10'-D" M MAINTENANCE ACCESS OUTLET STRUCTURE WITH TRASH MAINTENANCE ACCESS DRAWN BY o~M 10'-D" MIN RACK. 6" MIN. FREEBOARD FROM 6" FREE BOARD
WATER SURFACE D TEMP. POOL ELEV, 10'-0° MIN. CHECKED BY RTP
o c 4'- 5 EW. E.F LITTORAL SHELF W/ WETLAN INVERTED WATER ISSUE DATE osnGros
00 oe 24 ~ ~ PVC END CAP ~ 50 YEAR EVENT RIP RAP BERM PLANTINGS, 10' MIN. WIDTH STORMWATER STORAGE AND WEIR CLASS QUALITY ORIFICE.
SCHEDULE 40 B RIP RAP 15" LOCATED THIS REVISIONS SIDE SEE DETAIL MARK DATE 08SCRPTION
PVC PIPE PVC PIPE c ~ , MIN.. DEPTH. _
1 2" HOLES IN D . D / E ~oQ~~ 3~s(oq MPORARY POOL' PERMANENT POOL 6" MIN. FREEBOARD `L EMBANKMENT
PVC TEE UNDERSIDE ORIFICE ° • c COQ PVC TEE PLATE 5 HEADWALL- ~ HEADWALL F - ~15~ D t::a,~p~~~ll~I~~ 3~1
. D.. D C: JA ~ - 2-0" t
FLEXIBLE I-•--I LB•---III I I I~--~i t III III--•iII•-.-•.III ir"s.' ~ ~ aQ~ 4 µ ~ ~ ~QQ~
HOSE II--d-I I- 6I--a-III---III--~ ~ ~ ~:f--III~~~~ 1~~ nW'~~.,~ oQ 10~ ~~,~I , a~ ~ .4 ro DENR •VdATER{~AUTY
B STORM INLET LET 10;1 SLOP ~(p r S~ SLOPE ~r,A,.-~., ; , ABC. F~, `s r ! a ~J ~ ~ , WETIAE~JS AND STORi~RU„$TER 9R~9CIi
ENERGY DISC 10' LITTORAL SHELF ° _ _ !"1 -I'1"I (°(l""~'1l`~'l`flI I! ~--I -I I i-'= I I i~-I I _ I ! I t ENERGY DISSIPATOR 3:1 SLOPE STABILIZED I (~I I II I I-=~I I I__.I I I-~I I =~I I I-"~ I I =1 I I~=:.) I I~I I L~ I I L~=: '°j THIS DRAWING IS NOT TO BE SCALED FOR
TO POND BOTTOM. ~t ~ i I CONSTRUCTION PURPOSES, THE SCALE, WHEN
I~IONT VEW Q~ YEW _ ANTI-FLOATATION PAD INDICATED, IS FOR GENERAL REFERENCE ONLY,
a SEDIMENT FOREBAY I I---° SHEET TITLE
NOTE: MAIN POND I~
a ~ SCHEMATIC OF SKIMMER TAKEN FROM PENNSYLVANIA EROSION AND SEDIMENT POLLUTION CONTROL MANUAL, MARCH 2000,
0 POND CROSS SECTION
SITE DETAILS
SKIMMER N.T.S. 10 MM-SEEP COLLAR N.T.S. O7 BEST MANAGEI 1 AAA ENT PRACTICES (WET POND) DETAIL N.T.S.
SHEET NUMBER
C806