20091262 Ver 2_401 Application_20100210

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Office Use Only:
V Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification PC Form
A. Applicant Information
1. Processing
1a. Type(s) of approval sought from the
Corps: A;P
®Section 404 Permit El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 39 or General Permit (GP) number: WQC #3705
1c. Has the NWP or GP number been verified by the Corps? ? Yes ® No `
1 d. Type(s) of approval sought from the DWQ (check all that apply):
N 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ® Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
? Yes N 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
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ? No
2. Project Information
2a. Name of project: Rocky Mount High School
2b. County: Nash u s z
2c. Nearest municipality / town: Rocky Mount
2d. Subdivision name: n/a
2e. NCDOT only, T.I.P. or state
project no: n/a DENR-WATER QUALITY
VETIANDSANDSTORN ATERBRANCH
3. Owner Information
3a. Name(s) on Recorded Deed: Nash - Rocky Mount Board of Education
3b. Deed Book and Page No. Plat Book 39, Page 279
3c. Responsible Party (for LLC if
applicable):
Mark Strickland
3d. Street address: 1400 Bethlehem Road
3e. City, state, zip: Rocky Mount, NC
3f. Telephone no.: 252-459-5220
3g. Fax no.: 252-459-6404
3h. Email address: [e-mail]
Page 1 of 11
PCN Form - Version 1.3 December 10, 2008 Version
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ? Other, specify:
4b. Name:
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name: Michael Stocks
5b. Business name
(if applicable): Stocks Engineering, PA
5c. Street address: 1100 Eastern Avenue, P.O. Box 1108
5d. City, state, zip: Nashville, NC 27856
5e. Telephone no.: 252-459-8196
5f. Fax no.: 252-459-8197
5g. Email address: [e-mail]
Page 2 of 11
PCN Form -Version 1.3 December 10, 2008 Version
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): PIN# 374906494130
1 b. Site coordinates (in decimal degrees): Latitude: 35.93886 Longitude: - 77.83492
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: 60.52 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to Maple Creek
proposed project:
2b. Water Quality Classification of nearest receiving water: WS-IV; NSW
2c. River basin: Tar-Pamlico River
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 property currently consists of agricultural fields, pine/hardwood forest communities, and an existing church facility.
The dense residential and commercial areas of Rocky Mount surround the property.
3b. List the total estimated acreage of all existing wetlands on the property:
0.657 acres
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
738 feet
3d. Explain the purpose of the proposed project:
The new Rocky Mount High School campus will meet the need for additional educational facilities in the City of Rocky
Mount. The City of Rocky Mount has grown substantially in recent years and a new high school is needed to expand the
school system in order to accommodate the larger population of the City.
3e. Describe the overall project in detail, including the type of equipment to be used:
A new high school facility, including a classroom building, athletic facilities, and parking lots, will be constructed on the
60.52 acre property. In addition, a new sewer line will be placed to connect the new facility to the existing City of Rocky
Mount sewer system. This new sewer line connection will enter the property in the southern corner of the property.
Equipment such as backhoes, bulldozers, motor graders, and dump trucks will be used during clearing, grading, and
construction of the proposed 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?
[9 Yes ? No ? Unknown
Comments:
4b. If the Corps made the jurisdictional determination, what type
® Preliminary ? Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Environmental Services,
Name (if known): Robert Turnbull Inc.
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
USACE conducted an on-site review on March 25, 2009.
5. Project History
5a. Have permits or certifications been requested or obtained for ?Yes No ? Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help file" instructions.
Page 3 of 11
PCN Form - Version 1.3 December 10, 2008 Version
6. Future Project Plans
6a. Is this a phased project? ? Yes ® No
6b. If yes, explain.
Page 4 of 11
PCN Form - Version 1.3 December 10, 2008 Version
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. 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 Type of jurisdiction
number- Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Temporary T
W1 ®P ? T Fill Riparian ® Yes
? No ® Corps
® DWQ 0.047
W2 ®P ? T Fill Riparian ® Yes
? No ® Corps
® DWQ 0.014
W3 ®P ? T Fill Riparian ® Yes
? No ® Corps
® DWQ 0.077
W4 ? P ? T ? Yes ? Corps
? No ? DWQ
W5 ? P ? T ? Yes ? Corps
? No ? DWQ
W6 ? P ? T ? Yes ? Corps
? No ? DWQ
2g. Total wetland impacts 0.138
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 Type of impact Stream name Perennial Type of jurisdiction Average Impact
number - (PER) or (Corps - 404, 10 stream length
Permanent (P) or
Temporary (T) intermittent DWQ - non-404, width (linear
(INT)? other) (feet) feet)
S1 ®P ? T Open cut UT to Tar River ® PER
? INT ® Corps
® DWQ 5 10
S2 ®P ? T Fill UT to Maple ? PER ® Corps
2
271
Creek ® INT ® DWQ
S3 ? P ? T ? PER ? Corps
? INT ? DWQ
S4 ? P ? T ? PER ? Corps
? INT ? DWQ
S5 ? P ? T ? PER ? Corps
? INT ? DWQ
S6 ? P ? T ? PER ? Corps
? INT ?DWQ
3h. Total stream and tributary impacts 281
3i. Comments:
Page 5 of 11
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 individually list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number - (if applicable) Type of impact Waterbody type Area of impact (acres)
Permanent (P)
or Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts
4g. Comments:
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 of Wetland Impacts (acres) Stream Impacts (feet) Upland

b (acres)
num
er pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1 Stormwater Basin 0.588
P2 Stormwater Basin 0.387
5f. Total J 0.975
5g. Comments: Three non-flooded Bioretention areas will also be constructed in uplands (See Plan Sheets C-601 and C-602)
5h. Is a dam high hazard permit required?
? Yes ®No If yes, permit ID no:
5i. Expected pond surface area (acres): 0.975 acres
5j. Size of pond watershed (acres): Approximately 70 acres
5k. Method of construction: Excavation in uplands
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If ye: )acts
below. If an impacts require mitigation, then you MUST fill out Section D of thi!
6a.
? Neuse 2
Project is in which protected basin? ? Catawba [
6b. 6c. 6d. 6e. 6f.
Buffer impact
number - Reason Buffer Zone 1 impact Zone 2 impact
Permanent (P) for impact Stream name mitigation (square feet) (square feet)
or Temporary required.?
B1 ®P ? T sewerline
easement UT to Tar River ? Yes
® No 1.050 700
62 ?P?T ?Yes
? No
B3 ?P?T ?Yes
? No
6h. Total buffer impacts 600 400
6i. Comments: The proposed project will result in a 10-foot wide sewerline easement imnart anHa I ';-fnnt 1AAAm e}^rM%A-+-
Page 6 of 11
PCN Form - Version 1.3 December 10, 2008 Version
easement impact to the Tar-Pamlico Riparian Buffer associated with Stream #1. These impacts are Allowable without
mitigation under the Tar-Pamlico Riparian Buffer Rules per the NCDWQ Table of Uses for non-electric utility lines.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The majority of the site will be disturbed by this project, but the high school facilities have been placed to avoid as much of the
jurisdictional areas as practicable. The majority of Wetland #2, 198 feet of Stream #2, 259 linear feet of Stream #1, and all of
Wetland #4 have been avoided. The sewerline easement in the southern corner of the property has been placed so that it will
cross Stream #1 at a perpendicular angle, which will minimize stream and buffer impacts.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
A retaining wall will be placed on the south side of Wetland #2 to minimize impacts to the wetland and the north end of Stream
#2. Early designs did not include this retaining wall, which would have resulted in higher wetland impacts. Proper sediment
and erosion control measures will be implemented during and after construction.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State? ® Yes ? No
2b. If yes, mitigation is required by (check all that apply): ® DWQ ® Corps

2c. If yes, which mitigation option will be used for this project? ? Mitigation bank
® 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: 281 linear feet
4c. If using stream mitigation, stream temperature: ® warm ? cool ?cold
4d. Buffer mitigation requested (DWQ only): n/a square feet
4e. Riparian wetland mitigation requested: 0.138 acres
4f. Non-riparian wetland mitigation requested: n/a acres
4g. Coastal (tidal) wetland mitigation requested: n/a acres
4h. Comments: Mitigation for wetland impacts will be provided at a 2:1 ratio (0.276 acre) and at a 1:1 ratio (281 feet) for
stream impacts.
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.
Page 7 of 11
PCN Form - Version 1.3 December 10, 2008 Version
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: The proposed project will result in a 10-foot wide sewerline easement impact and a 15-foot wide stormwater
easement impact to the Tar-Pamlico Riparian Buffer associated with Stream #1. These impacts are Allowable without
mitigation under the Tar-Pamlico Riparian Buffer Rules per the NCDWQ Table of Uses for non-electric utility lines.
Page 8 of 11
PCN Form - Version 1.3 December 10, 2008 Version
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: Diffuse flow has been provided in all areas where discharges may occur ® Yes ? No
into environmentally sensitive areas.
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 37.2%
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:
See attached plan calculation summary.
® Certified Local Government
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? City of Rocky Mount
® Phase II
3b. Which of the following locally-implemented stormwater management programs ? NSW
? USMP
apply (check all that apply): ? 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
? 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 11
PCN Form - Version 1.3 December 10, 2008 Version
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. 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)?
1 c. 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:
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 213 .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.
The applicant is not aware of any pending develpoment plans that will result in additional jurisdicional impacts that could
affect downstream water quality.
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.
The Rocky Mount High School facility will be connected to the City of Rocky Mount sewer system.
Page 10 of 11
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 El Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ® El Yes No
impacts?

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?
On-site habitat evaluation by ESI plus NCNHP database review on June 30, 2009. No federal T&E species are
documented within 1 mile of site.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? T[] Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Essential Fish Habitat Waterbodies Index List from NCDOT and OneNC Naturally website.
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
st
t
N
i
? Yes N
a
us (e.g.,
at
onal Historic Trust designation or properties significant in o
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
Maps and files at the North Carolina State Historic Preservation Office on July 9, 2009
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? T EDD Yes ® No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? Nash County GIS
J. Michael Stocks, PE /J Feb. 23, 2010
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's ignature is valid only if an authorization letter from the applicant
is provided.)
Page 11 of 11
PCN Form - Version 1.3 December 10, 2008 Version
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WETLA14DS AND STORWIMI ER BRANCH
Channel Report
Hydraflow Express by Intelisolve
Ditch from Football Field to Scour Hole
Triangular
Side Slopes (z:1) = 5.00, 5.00
Total Depth (ft) = 1.00
Invert Elev (ft) = 110.00
Slope (%) = 1.00
N-Value = 0.035
Calculations
Compute by: Known Q
Known Q (cfs) = 6.71
Tuesday, Feb 23 2010
Highlighted
Depth (ft) = 0.78
Q (cfs) = 6.710
Area (sqft) = 3.04
Velocity (ft/s) = 2.21
Wetted Perim (ft) = 7.95
Crit Depth, Yc (ft) = 0.65
Top Width (ft) = 7.80
EGL (ft) = 0.86
Elev (ft) Section
112.00
111.50
111.00
110.50
110.00
109.50
Depth (ft)
2.00
1.50
1.00
0.50
0.00
_n r1n
0 1 2 3 4 5 6 7 8 9 10 11 12
Reach (ft)
Channel Report
Hydraflow Express by Intelisolve Tuesday, Feb 23 2010
Ditch from Pra ctice Fields and Biorete ntion 2 to Wetland (From FES 30)
Triangular Highlighted
Side Slopes (z:1) = 3.00, 3.00 Depth (ft) = 1.33
Total Depth (ft) = 2.00 Q (cfs) = 10.40
Area (sqft) = 5.31
Invert Elev (ft) = 111.00 Velocity (ft/s) = 1.96
Slope (%) = 0.40 Wetted Perim (ft) = 8.41
N-Value = 0.035 Crit Depth, Yc (ft) = 0.95
Top Width (ft) = 7.98
Calculations EGL (ft) = 1.39
Compute by: Known Q
Known Q (cfs) = 10.40
Elev (ft) Section
114.00
113.50
113.00
112.50
112.00
111.50
111.00
110.50
Depth (ft)
3.00
2.50
2.00
1.50
1.00
0.50
0.00
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Hydrograph Report
2
Hydraflow Hydrographs by Intelisolve v9.22 Wednesday, Feb 17, 2010
Hyd. No. 6
Pond #2 Outflow
Hydrograph type = Reservoir Peak discharge = 0.736 cfs
Storm frequency = 10 yrs Time to peak = 1254 min
Time interval = 2 min Hyd. volume = 93,387 cuft
Inflow hyd. No. = 5 - Post Pond #2 Max. Elevation = 121.54 ft
Reservoir name = Pond #2 (Football) Max. Storage = 114,638 cuft
Storage Indication method used.
Q (cfs)
60.00
50.00
40.00
30.00
20.00
10.00
Q (cfs)
60.00
50.00
40.00
30.00
20.00
10.00
0.00 I I I I 0.00
0 600 1200 1800 2400 3000 3600 4200 4800 5400 6000
Hyd No. 6 Hyd No. 5 I? Total storage used = 114,638 cult Time (min)
Pond #2 Outflow
Hyd. No. 6 -- 10 Year
Pond Report
3
Hydraflow Hydrographs by Intelisolve v9.22 Wednesday, Feb 17, 2010
Pond No. 2 - Pond #2 (Football)
Pond Data
Contours - User-defined contour areas. Conic method used for volume calculation. Begining Elevation = 117.50 ft
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft)
0.00 117.50 16,856 0 0
0.50 118.00 19,423 9,061 9,061
1.50 119.00 24,526 21,923 30,984
2.50 120.00 30,854 27,627 58,611
3.50 121.00 38,338 34,525 93,136
4.50 122.00 41,479 39,894 133,030
5.25 122.75 44,676 32,298 165,327
Culvert / Orifice Structures Weir Structures
[A] [B] [C] [PrfRsr] [A] [B] [C] [D]
Rise (in) = 15.00 2.50 0.00 0.00 Crest Len (ft) = 10.00 15.00 0.00 0.00
Span (in) = 15.00 2.50 0.00 0.00 Crest El. (ft) = 121.50 122.00 0.00 0.00
No. Barrels = 1 1 0 0 Weir Coeff. = 3.33 2.60 3.33 3.33
Invert El. (ft) = 117.50 117.50 0.00 0.00 Weir Type = Riser Broad - -
Length (ft) = 60.00 0.25 0.00 0.00 Multi-Stage = Yes No No No
Slope (%) = 0.30 0.10 0.00 n/a
N-Value = .013 .013 .013 n/a
Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in/hr) = 0.000 (by Contour)
Multi-Stage = n/a No No No TW Elev. (ft) = 0.00
Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s).
Stage / Storage / Discharge Table
Stage Storage Elevation Civ A Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total
ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs
0.00 0 117.50 0.00 0.00 -- --- 0.00 0.00 -- -- - -- 0.000
0.50 9,061 118.00 0.00 0.10 is -- -- 0.00 0.00 -- -- - -- 0.103
1.50 30,984 119.00 0.00 0.19 is -- -- 0.00 0.00 --- -- -- - 0.194
2.50 58,611 120.00 0.00 0.25 is -- --- 0.00 0.00 -- -- -- - 0.254
3.50 93,136 121.00 0.00 0.30 is -- -- 0.00 0.00 - -- --- --- 0.302
4.50 133,030 122.00 10.30 oc 0.34 is - -- 10.30s 0.00 -- --- - - -- 10.64
5.25 165,327 122.75 11.83 oc 0.37 is -- -- 11.81 s 25.33 -- -- -- - 37.52
Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Filter Strip, Restored Riparian Buffer and Level Spreader
Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important maintenance procedures:
- Immediately after the filter strip is established, any newly planted vegetation
will be watered twice weekly if needed until the plants become established
(commonly six weeks).
- Once a year, the filter strip will be reseeded to maintain a dense growth of
vegetation
- Stable groundcover will be maintained in the drainage area to reduce the
sediment load to the vegetation.
- Two to three times a year, grass filter strips will be mowed and the clippings
harvested to promote the growth of thick vegetation with optimum pollutant
removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and
may be allowed to grow as tall as 12 inches depending on aesthetic requirements
(NIPC,1993). Forested filter strips do not require this type of maintenance.
- Once a year, the soil will be aerated if necessary.
- Once a year, soil pH will be tested and lime will be added if necessary.
After the filter strip is established, it will be inspected quarterly and within 24 hours
after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County).
Records of operation and maintenance will be kept in a known set location and will be
available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential problem: How I will remediate the problem:
The entire filter strip Trash/debris is present. Remove the trash/debris.
system
The flow splitter device The flow splitter device is Unclog the conveyance and dispose
(if applicable) clogged. of an sediment off-site.
The flow splitter device is Make any necessary repairs or
damaged. replace if damage is too large for
re air.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3
BMP element: Potential problem: How I will remediate the problem:
The swale and the level The swale is clogged with Remove the sediment and dispose
lip sediment. of it off-site.
The level lip is cracked, Repair or replace lip.
settled, undercut, eroded or
otherwise damaged.
There is erosion around the Regrade the soil to create a berm
end of the level spreader that that is higher than the level lip, and
shows stormwater has then plant a ground cover and
bypassed it. water until it is established. Provide
lime and a one-time fertilizer
application.
Trees or shrubs have begun Remove them.
to grow on the swale or just
downslo e of the level lip.
The bypass channel Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then
reestablish proper erosion control.
Turf reinforcement is Study the site to see if a larger
damaged or ripap is rolling bypass channel is needed (enlarge if
downhill. necessary). After this, reestablish
the erosion control material.
The filter strip Grass is too short or too long Maintain grass at a height of
(if applicable). approximately three to six inches.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer application.
Sediment is building up on Remove the sediment and
the filter strip. restabilize the soil with vegetation if
necessary. Provide lime and a one-
time fertilizer application.
Plants are desiccated. Provide additional irrigation and
fertilizer as needed.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application.
Nuisance vegetation is Remove vegetation by hand if
choking out desirable species. possible. If pesticide is used, do not
allow it to get into the receiving
water.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality local Regional Office, or the
outlet. 401 Oversight Unit at 919-733-1786.
Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 Of 3

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the 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 party.
Project name:Rocky Mount Senior High School
BMP drainage area number:N/A
Print name:Mark Strickland
Title:Special Assistant for Auxiliary Services
Address:930 Eastern Avenue, Nashville, NC 27856
Phone:[phone]
Date: Z' z 3 '
Signature:
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
a Notary Public for the State of
1, aWP-`/s
?CU/I i14?_, County of i??Z?l , do hereby certify that
Ck? personally appeared before me this
day of and acknowledge the due execution of the
forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements.
Witness my hand and official seal,
L1ADA B. WELLS
NOTARY PUBLIC
NASH COUNTY C
SEAL
My commission expires r as A a3
Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3
O?C? W ATE9oG
ARMIr
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
I. PROJECT INFORMATION PROJECT INFORMATION 1
Project name Rocky Mount Senior High School
Contact name Kevin Vamell
Phone number 252.459.8196
Date February 15, 2010
Drainage area number NIA
IL DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP Wet Detention Pond
Drawdown flow from the BMP 0.74 cfs
For Level Spreaders Receiving Flow from the Drainage Area Do not complete this section of the worksheet.
Drainage area 153,767.00 ftz Do not complete this section of the worksheet.
Impervious surface area 47,480.00 ft2 Do not complete this section of the worksheet.
Percent impervious 30.88 % Do not complete this section of the worksheet.
Rational C coefficient 0.36 Do not complete this section of the worksheet.
Peak flow from the 1 in/hr storm 1.27 cfs Do not complete this section of the worksheet.
Time of concentration 15.00 min
Rainfall intensity, 10-yr storm 4,7 in/hr Do not complete this section of the worksheet.
Peak flow from the 10-yr storm 5.97 cis Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? n (Y or N)
To a mulched bioretention cell? n (Y or N)
To a wetland? y (Y or N) Please complete filter strip characterization below.
To a filter strip or riparian buffer? n (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 15.00 ft
Width of dense ground cover 0.00 ft
Width of wooded vegetation 0.00 ft
Total width 15.00 ft
Elevation at downslope base of level lip 110.50 fmsl
Elevation at top of bank of the receiving water 110.20 fmsl
Slope (from level lip to to top of bank) 2.00 % OK
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area sq ft No forebay is needed.
Feet of level lip needed per cfs 13 ft/cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm? N (Y or N)
Length based on the 10-yr storm? Y (Y or N)
Length based on the BMP discharge rate? Y (Y or N)
Design flow 6.71 cfs
Is a bypass device provided? N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
15.00 ft Level spreader is not long enough.
N (Y or N)
(Y or N) Do not complete this section of the worksheet.
(Y or N) Do not complete this section of the worksheet.
Do not complete this section of the worksheet,
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
cis Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
• •
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M
B
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5
M
Parts I. and It. Design Summary, page 2 of 2
lll. REQUIRED" ITEMS! CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials SheetNo.
'??? C` ?a$ 1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the level spreader showing:
- Forebay (if applicable),
- High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build-out.
3. Section view of the level spreader (1" = 20' or larger) showing:
- Underdrain system (if applicable),
- Level lip,
- Upslope channel, and
- Downslope filter fabric.
;?V(/ AffA 4. A date-stamped photograph of the filter strip that clearly shows the type of vegetation that is present.
`6q
5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
5" drainage area is stabilized.
fpMIC 6. The supporting calculations.
OC1L 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.

-J ?? dA 8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1
A
A?
NCDENR
WW?A7-e9
(II_JWL?R r
0Ii -
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT
This form must be completely filled out, printed and submitted.
DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)!
I. PROJECT INFORMATION
Project name Rocky Mount Senior High School
Contact name Kevin Vamell
Phone number 252.459.8196
Date February 15, 2010
Drainage area number NIA
tl. DESIGN INFORMATION
For Level Spreaders Receiving Flow From a BMP
Type of BMP Wet Detention Pond
Drawdown flow from the BMP 0.74 cfs
For Level Spreaders Receiving Flow from the Drainage Area Do not complete this section of the worksheet.
Drainage area 153,767.00 ft Do not complete this section of the worksheet.
Impervious surface area 47,480.00 ftz Do not complete this section of the worksheet.
Percent impervious 30.88 % Do not complete this section of the worksheet.
Rational C coefficient 0.36 Do not complete this section of the worksheet.
Peak flow from the 1 in/hr storm 1.27 cfs Do not complete this section of the worksheet.
Time of concentration 15.00 min
Rainfall intensity, 10-yr storm 4.7 in/hr Do not complete this section of the worksheet.
Peak flow from the 10-yr storm 5.97 cfs Do not complete this section of the worksheet.
Where Does the Level Spreader Discharge?
To a grassed bioretention cell? n (Y or N)
To a mulched bioretention cell? n (Y or N)
To a wetland? y (Y or N) Please complete filter strip characterization below.
To a filter strip or riparian buffer? n (Y or N)
Other (specify)
Filter Strip or Riparian Buffer Characterization (if applicable)
Width of grass 15.00 ft
Width of dense ground cover 0.00 ft
Width of wooded vegetation 0.00 ft
Total width 15.00 ft
Elevation at downslope base of level lip 110.50 fmsl
Elevation at top of bank of the receiving water 110.20 fmsl
Slope (from level lip to to top of'bank) 2.00 % OK
Are any draws present? N (Y or N) OK
Level Spreader Design
Forebay surface area sq ft No forebay is needed.
Feet of level lip needed per cfs 13 ft/cfs
Answer "Y" to one of the following:
Length based on the 1 in/hr storm? N (Y or N)
Length based on the 10-yr storm? Y (Y or N)
Length based on the BMP discharge rate? Y (Y or N)
Design flow 6.71 cfs
Is a bypass device provided? N (Y or N) A bypass device is not needed.
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and Il. Design Summary, page 1 of 2
Length of the level lip
Are level spreaders in series?
Bypass Channel Design (if applicable)
Does the bypass discharge through a wetland?
Does the channel enter the stream at an angle?
Dimensions of the channel (see diagram below):
M
B
W
y
Peak velocity in the channel during the 10-yr storm
Channel lining material
15.00 ft Level spreader is not long enough.
N (Y or N)
(Y or N) Do not complete this section of the worksheet.
(Y or N) Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
ft Do not complete this section of the worksheet.
cfs Do not complete this section of the worksheet.
Do not complete this section of the worksheet.
• W •
,
------------
M
B
1
------------
M
Form SW401-Level Spreader, Fitter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 2 of 2
111. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
Initials Sheet No.
O$
1. Plans (1" - 50' or larger) of the entire site showing:
- Design at ultimate build-out,
- Off-site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Forebay (if applicable),
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW), and
- Boundaries of drainage easement.
a$ "
'
2. Plan details (1
= 30
or larger) for the level spreader showing:
Forebay (if applicable),
High flow bypass system,
- One foot topo lines between the level lip and top of stream bank,
- Proposed drainage easement, and
- Design at ultimate build-out.
C- 7 f ( 3. Section view of the level spreader (1" = 20' or larger) showing:
Underdrain system (if applicable),
Level lip,
- Upslope channel, and

fA Downslope filter fabric.
4
A date-stam
ed
hoto
ra
h
f th
f
lt
i
t
th
t
l
l
h
th
f
t
t
i
i
h
.
p
p
g
p
o
i
er s
r
p
e
a
c
ear
y s
ows
e
vege
ype o
at
on t
at
s present.
5. A construction sequence that shows how the level spreader will be protected from sediment until the entire
drainage area is stabilized.
_&00V - 6. The supporting calculations.
SEE
v
v
m
- 7. A copy of the signed and notarized operation and maintenance (0&M) agreement.
f{ 1 ^ 8. A copy of the deed restrictions (if required).
Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1
ROCKY
MOUNT
N O R T N C A R O L I N A
November 18, 2009
Ms. Cyndi Karoly
401 Oversight/Express Review Permitting Unit
Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
Re: Rocky Mount High School, Bethlehem Road, Rocky Mount
Dear Ms. Karoly:
DEPARTMENT OF
ENGINEERING
The City of Rocky Mount has reviewed and approved the stormwater management plan for the proposed
Rocky Mount High School. The City operates a Certified Local Stormwater Program under Phase II
NPDES Stormwater Program and is commited to requiring on-site stormwater management measures,
such as riparian buffers, bioretention cells, constructed wetlands, and level spreaders, for any new
development within our jurisdiction. All development is also required to meet stringent water quality
requirements in accordance with the City of Rocky Mount's Land Development Code, the City of Rocky
Mount's Stormwater Management Program, the Tar-Pamlico River Basin Riparian Buffer Protection
Rules, and the Tar-Pamlico Nutrient Management requirements.
If you have further questions or need additional information, please feel free to contact me at
252/972-1340 or Karen. Callaway_grockymountnc.gov.
Sincerely,
Adz
ea&a,(-Ja7
Karen G. Callaway, P.E.
Interim Asst. City Engineer/Water Resources
331 South Franklin Street -Post Office Box 1180 -Rocky Mount, North Carolina 27802-1180
Telephone [phone] - Fax [phone] - Website: www.rockymountnc.gov
Email: [e-mail]
ROCKY
MOUNT
N C R T N C A R D L I N A
November 18, 2009
Ms. Cyndi Karoly
401 Oversight/Express Review Permitting Unit
Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
Re: Rocky Mount High School, Bethlehem Road, Rocky Mount
Dear Ms. Karoly:
DEPARTMENT OF
ENGINEERING
The City of Rocky Mount has reviewed and approved the stormwater management plan for the proposed
Rocky Mount High School. The City operates a Certified Local Stormwater Program under Phase II
NPDES Stormwater Program and is commited to requiring on-site stormwater management measures,
such as riparian buffers, bioretention cells, constructed wetlands, and level spreaders, for any new
development within our jurisdiction. All development is also required to meet stringent water quality
requirements in accordance with the City of Rocky Mount's Land Development Code, the City of Rocky
Mount's Stormwater Management Program, the Tar-Pamlico River Basin Riparian Buffer Protection
Rules, and the Tar-Pamlico Nutrient Management requirements.
If you have further questions or need additional information, please feel free to contact me at
252/972-1340 or Karen. Callaway2rockymountnc.gov.
Sincerely,
Aid
oade&J,47
Karen G. Callaway, P.E.
Interim Asst. City Engineer/Water Resources
331 South Franklin Street -Post Office Box 1180 -Rocky Mount, North Carolina 27802-1180
Telephone [phone] - Fax [phone] - Website: www.rockymountnc.gov
Email: [e-mail]