SW8941015_Historical File_19950328 (2)

State of North Carolina
Department of Environment, Health, and Nat",ural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
March 28, 1995
Mr. Mark B. Pearsall
PVC, Incorporated
Post Office Box 7246
Rocky Mount, North Carolina 27804
Subject: CERTIFICATION OF COMPLIANCE
with Stormwater Regulations
Stormwater Project No. SW8 941015
Holiday Inn Wrightsville Beach
New Hanover County
Dear Mr. Pearsall:
This Certification is pursuant to the revised application for the Holiday Inn Wrightsville Beach
received on March 24, 1995. Staff review of the revised project plans and specifications has determined
that the stormwater control system as proposed will comply with the Stormwater Regulations set forth
in Title 15A NCAC 2H.1003(h). Stormwater runoff will be treated by underground infiltration trenches
sized to contain the first inch of runoff from 142,739 square feet of buildings, parking and sidewalks
located on the site. This revised Certification is issued for a change in the trench detail design.
Any modification of the plans submitted to and approved by this Office or further development
of this site regardless of the fact that such modification may be less than 1 acre, will require an additional
Stormwater Submittal/Modification and approval prior to initiation of construction. Modifications include
but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces,
addition of built -upon surfaces, redesign or further subdivision of the project area as shown on the plans
submitted to -and approved by this- Office.--- ------ -- - ---- - —-.----- - - - --- - - -
This Certification shall be effective from the date of issuance until rescinded. The project shall
be constructed and maintained in accordance with the plans and specifications approved by the
Wilmington Regional Office. This Certification supersedes the one issued to you on November 18, 1994.
The developer is responsible for obtaining any and all permits and approvals necessary for the
development of this project. This could include the Division of Coastal Management under CAMA
requirements, The Division of Environmental Management under Wetland 401 Water Quality
Certification, and/or a Dredge and Fill Permit, and/or a Sewer Extension/Collectiori Permit, U.S. Army
Corps of Engineers 404 Wetland Permit, NPDES Stormwater Permit if disturbing five acres or more,
local County or Town Agency permits under their local ordinances, or others that may be required.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 a Telephone [phone] • Fax [phone]
An Equal Opporlunity Affirmative Action Employer

Mr. Pearsall
March 28, 1995
Stormwater Project No. SW8 941015
-------------------------------------------
A professional engineer must certify that the stormwater system has been installed in accordance
with the approved plans and specifications upon completion of construction. The attached certification
should be received by this Office within 30 days of construction completion.
The infiltration trenches shall be constructed in their entirety, and operational prior to the
construction of any impervious surfaces proposed for the project, except roads.
If you have any questions concerning this matter, please call Ms. Linda Lewis or me at (910)-
395-3900.
Sincerely,
a Adkins
Water Quality Supervisor
DA/arl: S:\WQS\STORMWAT\CERTIFIC\941015.NOV
cc: Jim Honeycutt, P.E.
Sky Conklin New Hanover County Building Inspections
-- --Beth-Easley;-New-Hanover County -------.---_---
John Parker, CAMA
Bradley Bennett
Linda Lewis
....,,
Central Files

DIVISION OF ENVIRONMENTAL MANAGEMENT
INFILTRATION SYSTEM PROJECT DATA
Project Name:
Project No.:
Location:
Applicant Name:
Mailing Address:
Submittal Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
Basin size:
Basin Depth:
Bottom Elevation:
Design Storage Elevation:
Total Impervious Surfaces Allowed:
Green Areas Draining to Basin:
Storage volume required:
Storage volume provided:
Infiltration Rate and Type of Soil:
Holiday Inn Wrightsville Beach
SW8 941015
New Hanover
Mr. Mark B. Pearsall
PVC, Incorporated
Post Office Box 7246
Rocky Mount, North Carolina 27804
October 26, 1993
March 24, 1995 Revised
ICWW
"SA"
901 linear feet of 8'W x 3.0'H trench
3.0'
3.0 MSL
6.55 MSL
142,739 square feet
36,342 square feet
11,995 cubic feet
12,321 cubic feet
.52 in/hr, Newhan Sand
Couunents:
Site infiltration rate will be much higher that .52 in/hr. Like systems on the island function very
well. The trench drains at the entrances to the site act as the overflow weirs.

INFILTRATION SYSTEM EVALUATION
L Yes
No System is capable of treating and disposing of runoff from all impervious
surfaces resulting from 1-1/2 inches of rain.
2. Yes
No The system is located at least 30 feet from surface waters.
3. Yes
No The system is a minimum of 100 feet from water supply wells.
4. Yes
No The bottom of the system is a minimum of 2 feet above the seasonal high
water table.
5. Yes
No Runoff in excess of the design volume by-passes the system and does not flush
pollutants through the system.
6. Yes
No The vegetative filter provides non -erosive flow for the 10 year storm, even
distribution of the runoff over the length of the filter, a slope of 5 % or less,
and is planted with natural, grassed, or artificially planted wetland vegetation.
7. Yes
No The system has been shown to completely draw down in 5 days.
8. Yes
No Soil has a minimum hydraulic conductivity of 0.52 in/hr.
9. Yes
No The system is not sited on or in fill material.
10. Yes
No The system has an observation well.
11. Yes
No An Operation and maintenance plan has been provided for the system.
12. Yes
No THIS PROJECT MEETS THE STORMWATER CONTROL
REQUIREMENTS OF 15 NCAC 2H. (g), (h), 0), (k) and (1). For YES,
items 1-14 must all be highlighted YES.
DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF
Wilmington Regional Office
ZS HAZ 95
Date
Date
28r/mcb )99
Date
cc:Applicant/Bradley Bennett/arl/WiRO/CF
Individual Evaluating Form/Plans
0 06�IAA-c.. S 16 uUO) 13 y v i ,ic.6lqG csw) s
Regional Soil Scientist
egional Water Quality Supervisor

Holiday Inn Wrightsville Beach
New Hanover County
Stormwater Project No. SW8 941015
Engineer's Certification
I, , as a duly registered Professional Engineer in the State
of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of
the project,
for [Project Owner] hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans and
specifications. Recorded deed restrictions are attached to provide further evidence that the project has
been built within substantial intent of the approved stormwater plans and spectifications.
Signature
Registration Number
Date

INFILTRATION SYSTEM
OPERATION & MAINTENANCE PLAN
Project Name: Holiday Inn - SunSpree Resort at Wrightsville Beach, N. C Project No.
Responsible Party: PVC Inc. Phone No.
Address: P. O. Box 7246
Rocky Mount N. C. 27804
I,,. Monthly, or after every runoff. producing rainfall event, whichever comes first:
A. Inspect the catch basin grates and volume below and remove accumulated
debris.
B. Inspect swales and vegetated filter, if any, and remove accumulated debris.
II. Quarterly:
A. Inspect the infiltration system catch basins and infiltration piping for proper
functioning. Accumulated trash will be cleared from basin grates, basin
bottoms and piping will be checked for obstructions and cleared as required.
III. Semi-annually:
A. Accumulated sediment from the bottom of the catch basins will be removed.
B. The infiltration piping will be checked. If volume is reduced to 75 % of
original design volume, the sediment will be removed.
C. Grassed swales and vegetated filter, if any, will be reseeded twice a year as
necessary.
IV. General:
A. Mowing of the side slopes of the swale, if any, will be accomplished according to
the season. Maximum grass height will be 6".
B. All components of the infiltration system will be kept in good working order.
Repair or replacement components will meet the original design specifications in
accordance with the approved stormwater plan.
riPPIFIE
Page 1 of 2 NORR , 3 ,1PO4 "I 0i,
ti
Stormwater Cettification Mo.2 .�AQI

Holiday Inn - SunSpree Resort at Wrightsville Beach, North Carolina
V. Special Requirements:
I,
1. Annual testing/cleaning of the system shall be accomplished by introducing high
pressure water in the system or other acceptable method.
2. Any failure of the system shall necessitate the repair/replacement of the failed
component(s) and the immediate restoration of the system to the original design
specifications.
Allci, ZAA. hereby
acknowledge that I am the financially responsible party for m lntenanc of the infil ration system. I
will perform the maintenance as outlined above, as part of the Certification of Compliance with
Stormwater Regulations received for this project.
JJ�
Signature: Title: //ih �� �" Date: A
h a Notary Public for the State of�
County of i�+ `-�,-- s , do hereby certify thatZ?2, ;���t/
personally appeared before me this day of �, 199_
and acknowledge the due execution of the foregoing instrument. Witness my hand and official seal,
SEAL
My commission expires
Page 2 of 2

DIVISION OF ENVIRONMENTAL MANAGEMENT
DENSITY ENGINEERED )C
PROJECT DATA
Project Name H-C;P L. l
Location (County, Township/Municipality, Address, State Road) I ° i 014, L V V
r� -T `— l L l X brA-C.1� Z
Owner's Name Q V c r N C,
MailIingAddress R d ,
Phone Number Submittal Date_ �G \ 4
Brief Description (include map and appropriate drawings)97j� L Ar jZ C-A 1 ce S,
of
►a rv� s c�A 11 fl sza�z w MrNf rt: ►7T-J '
Name of Water Body Receiving Stormwater Runoff 1 CWVJ--
Classification of Water Body_ SA If SA waters, engineered system, and distance is <0.5
miles, attach report of chloride sampling results mg/1
State/Federal Permits/Approvals Required (Check appropriate blanks)
CAMA Major >e Sedimentation/Erosion Control X
404 Permit DEM/DHS Sewage Disposal
Other (Specify)
CALCULATION OF BUILT UPON AREA
Built upon area means that portion of a development that is covered by impervious or partially pervious cover
including buildings, pavement, recreation facilities, gravel, etc., but not including wood decking. If the project
includes areas draining to different water classifications, please note them separately below.
Classification
Built upon area
Total Project Area
% Built upon Area
Allowable B/U Area
Subwatershed
s$
� 47- -t S9 PT z
1 O' I T z.
5-,51124'r-Tz
Subwatershed
Is the Project B/U Area 5 the Allowable B/U Area? 0 is I (If no, an engineered system is required.)
Built upon area = (built upon area / total project area) * 100
Built upon area limits for projects to meet density: SA waters — 25%, Other ---30%
STORMWATER COLLECTION SYSTEM
Describe how the runoff will be treated
5l-fie V zP }Jukes, T
Office use only
p E C E 0 V E
D
OCT 2 6 M
D E M
PRO] # sw 8 C(4 lot 5

Is the built upon area at least 30 feet from mean high water of all surface waters? `? t'c S If no,'please
provide a description
(Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities are allowed
within 30 feet of the mean high water line if the project is intended to meet stormwater control
requirements through density limits.)
DEED RESTRICTIONS AND PROTECTIVE COVENANTS
By my signature below, I certify that xhe recorded deed restrictions and protective covenants for this project
shall limit the allowable built -upon area per lot to . N to , square feet inclusive of right-of-way,
structures, pavement, walkways or patios of brick, stone, or slate, not including wood decking, state that
the covenants will be binding on all parties and persons claiming under them, that they will run with the
land, and that benefits may be enforced by the State of North Carolina, therefore, the covenant cannot be
changed or deleted without consent of the State.
CERTIFICATION
I, P°t af4SArLL certify that the information included on this
submittal form is correct, that the project will be constructed in conformance with this information, and
that to the best of my knowledge, the proposed project complies with the requirements of 15 NCAC
2H.1003 (b). I authorize the. below named person or firm to submit stormwater plans on my behalf,.and
agree to abide by the deed restriction statement above.
Owner's Signature Mack B. Pearsall, Pres. Date
Provide authorized person or firm name and address below:
m 46 OIL W 4-T S V I LtLv pt -v C � u M (-r ri
,allotaryPublicfortheStateof
County of - , do hereby certify that - -� personally
appeared befor ' me this, day of , 19, and acknowledges the due execution
of the foregoing instrument. Witness my hand and official seal,
My commission expires _ ,r —,3. "
DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF
Regional Office
l5 pov C/4-
Date
Date
Evaluating Forms/Plans
cc: Applicant/WiROBradley Bennett/Central Files
Quality Supervisor

Project # 941015 Date 28—Mar-95
Project Name HOLIDAY INN Reviewer ARL
Drainage Basin ICWW Classification SC
Site Area
179081 Square Feet
4.11 Acres
Drainage Area 179081 Square Feet
4.11 Acres
Impervious Area Calculation
Buildings
36454 X 1.00 =
36454 square feet
Parking/Asphalt
91290 X 0.95 =
86726 square feet
Concrete
14995 X 0.90 =
13496 square feet
Other (green)
36342 X 0.20 =
7268 square feet
Total Impervious
142739 Total
143943 square feet
Volume/Storage Calculation
Required
Required Volume To Store
Pipe Diameter
Length Of Pipe
Length Of Trench
Width Of Trench
Height Of Trench
Triangular Area
Cross —Sectional Area Of Trench
Storage In Piping
Provided
Available Volume To Store
(Assuming 40% Voids)
Elevation Of Bottom Of Trench (LOWEST)
Elevation Of Seasonal High Water Table
Exfiltration Rate / Drawdown
Miminum Required Exfiltration rate
Reported Hydraulic Conductivity (In/Hr)
Bottom Surface Area
Provided Exfiltration Rate
Comments:
11995 Cubic Feet
1.00 Feet
901.00 Feet
901.00 Feet
8.00 Feet
3.00 Feet
9 Square feet
33.00 Square Feet
3 Cubic Feet
(1604 gallons)
12321 Cubic Feet (1647 gallons)
2.50 Mean Sea Level
1.00 Mean Sea Level
768.0 GPH
0.52 Inches per Hour
7208.00 Square Feet
2336.4 GPH/SF
Separation is less than 2', but water table cannot be determined at this location. Soil scientist
recommends approval due to the ability of similar systems in the immediate area to function well.

Drainage calculations for Holiday Inn, Wrightsville Beach, NC
Project IE-4100
9124/94
Revised 3/17/96
A := 179081 •ft2 A = 4.111 -acre ...total area of site
runoff:- 1 - in ...volume of runoff to be stoned
VsR := runoff•A VsR = 14923 , ft3 ...volume of storage required based on 9" of runoff
W : - G • ft ft ...trench width
H 3.5 •f f4 ...trench depth
d := 1-ft ft ...pipe diameter
v : 0.4 ...assumed void ratio of stone
pipe (d)'
2...cross-secional area of pipe
Vs := Apia * �W II Apipe)•v+ 2•.5 II II v
V s = 16.571 -ft? ...volume of storage available per foot of trench incl. side slopes
.= VsR
(V s)
L = 901-ft ...length of trench required
Analysis of drawdown time:
K := 0.5h2f-in K = 1.204.10-5 - ...Assume minimun required
time := VsR time = 47.8 -hr
K•L•W
?E. .
RE cElw
MAR 1 3 1"S
DEM
PF'oj A