SW8940814_Historical File_19951107

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr'., P.E., Director
November 7, 1995
Mr. Rodney Q. Harris
Dallas Harris Real Estate Construction
Post Office Box 531
Wrightsville Beach, North Carolina 28480
Subject:
Dear Mr. Harris:
�EHNR
Permit No. SW8 940814
Covil Estates II
Low Density Stormwater Project
New Hanover County
The Wilmington Regional Office received the Stormwater Application for Covil Estates II on August 11, 1994,
with final information on February 10, 1995. Staff review of the plans and specifications has determined that
the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000.
We are forwarding Permit No. SW8 940814 dated November 7, 1995 to Dallas Harris Real Estate
Construction.
This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions
and limitations as specified therein.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit.
This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC
27611-7447. Unless such demands are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter., please Gont ct either Li -
Lewis or me at (910),), 395-39 0.
Sincerely,
Dave Adkins
Regional Water Quality Supervisor
DA/arl: S:1WQSISTORMWATIPERNIIT1940814.NOV
cc: Phil Norris, P.E.
Alan Golden, New Hanover County Inspections
Wilmington Regional Office
Central Files
Linda Lewis
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer

5Adw 5iorinwater ivianagement Syatoina
Permit No.SW8 940814
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
STATE STOR'vIVyATER MANAGEVIENT FERI'Y fr
LOW DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended,
and other applicable Laws, Rules and Regulations
PERNIISSION IS HEREBY GRANTED TO
Dallas Harris Real Estate Construction
Covil Estates II (Snug Harbor II, Covil Point, Peppertree)
New Hanover County
construction, operation and maintenance of stormwater management systems in compliance with the provisions
of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules") and the approved stormwater
management plans and specifications, and other supporting data as attached and on file with and approved by
the Division of.Environmental Management and considered a part of this permit for Snug Harbour @Covil
Estates.
The Permit shall be effective from the date of issuance until rescinded and shall be subject to the following
specific conditions and limitations:
I. DESIGN STAND,*RDS
1. The following built -upon area limitations are approved for this project:
.r
a. The allowable built -upon area per lot is Snug Harbour II- 4,830 ft2; Peppertree- 3,930 ft2; Covil
Point- 6,480 ft2, based on a total of 158 lots.
b. The total allowable built -upon area for the tract is 1,008,240 W.
2. The overall tract built -upon area percentage or lot sizes for the project must be maintained at levels at
least as stringent as the low density levels specified in the stormwater rules. These levels are
summarized below (more stringent levels may apply in accordance with the rules):

WA,C �e •.t [i.�5r accl :«se? a .^.1�^2 Jj s!CTI45
Permit No.3W8 940814
DEVELOPMENT THAT IS WITHIN:
LOW DENSITY LEVEL:
The twenty coastal counties
30 %
r,..., half mile of, and dr..: b x SA et cm
GS%
One mile of and draining to HQWs
12 % or 1 acre lots
Defined management area for Freshwater ORWs
12 % or 1 acre lots
3. The development must demonstrate that no areas within the project site are of such high density that
stormwater runoff threatens water quality.
4. Approved plans and specifications for projects covered by this permit are incorporated by reference and
are enforceable parts of the permit.
5. The only runoff conveyance systems allowed will be vegetated conveyances such as swales with
minimum side slopes of 3:1 (H: V) or curb outlet systems as defined in the stormwater rules and
approved by the Division. This project utilizes curb breakq and swales.
6. No piping shall be allowed except:
a. That minimum amount necessary to direct runoff beneath an impervious surface such as a road.
b. That minimum amount needed under driveways. to provide access to lots.
7. Projects covered by this permit will maintain a minimum 30 foot wide vegetative buffer between all
impervious areas and surface waters.
8. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices
(such as swales) shown on the approved plans as part of the stormwater management system without
submitting a revision to the permit -and receiving approval from the Division.
9. Each of tie lots in the subdivision will be limited to the amount of built -upon area indicated in the
approved plans and consistent with item 1 above.
10. The permittee is responsible for verifying that the proposed home plans do not exceed the allowable
built -upon area. Once the lot transfer is complete, the home plan may not be revised without approval
from the permittee, and responsibility for meeting the built -upon area limit is transferred to the
individual homeowner:
11. Deed restrictions are incorporated into this permit by reference and must be recorded with the Office
of the Register of Deeds. A copy of the recorded restrictions must be received by this Office within 30
days of the date of recording. Recorded deed restrictions must include, as a minimum, the following
statements related to stormwater management:

Permit No.SW8 940814
a: A statement of the allowable built -upon area per lot in the following form:
"The allowable built -upon area per lot is Snug Harbour 11- 4,830 W; Peppertree- 3,930 ft2;
Covil Point- 6,480 W; inclusive of that portion of the right-of-way between the front lot line and
the edge of the pavement, structures, pavement, walkways of brick, stone, slate, but not
including wood decking. "
b. Items related to stormwater management must remain in the deed res eiction, and this must be
indicated by including the following:
"The covenants pertaining to stormwater regulations may not be changed or deleted without
concurrence of the State. "
C. To assure that vegetated conveyances are not piped (in accordance with item 5) deed restrictions
must indicate that:
"Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the
development except for average driveway crossings, is strictly prohibited by any persons. "
12. The Engineer/Owner/Developer/Permittee must certify in writing that the project's stormwater controls,
and impervious surfaces have been constructed within substantial intent of the approved plans and
specifications.
13. The fo1'nT :ns will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision of the project area.
In addition, the Director may determine that other revisions to the project should require a modification
to the permit.
14. The Director may notify the permittee when the permitted site does not meet one or more of the
minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall
submit a written time schedule to the Director for modifying the site to meet minimum requirements.
The permittee shall provide copies of revised plans and certification in writing to the Director that the
changes have been made.
II. SCHEDULE OF COMPLIANCE
1. The permittee shall comply with the following schedule for construction and maintenance of the Low
Density Option stormwater systems:
a. Swales and other vegetated conveyances shall be constructed in their entirety, vegetated, and be
operational for their intended use prior to the construction of any built -upon surface except
roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the swales or
other vegetated conveyances will be repaired immediately.

Permit No.SW8 940814
2. The permittee shall at all times provide the operation and maintenance necessary to operate the
permitted stormwater management systems at optimum efficiency to include:
a. Inspections
b Sediment removal.
C. Mowing, 'and revegetating of the side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
3. The permittee shall submit recorded deed restrictions limiting built -upon area per lot in accordance with
Part I item 9 within 30 days of the date of recording.
4. The permittee shall submit the frngineer/Owner/Designer/Permittee Certification in accordance with Part
I Item 12 within 30 days of completion of the project.
5. The permittee shall submit all information requested by the Director or his representative within the
time frame specified in the written information request.
III, GENERAL CONDITIONS
1. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
an enforcement action by the Division of Environmental Management, in accordance with North
Carolina General Statutes 143-215.6A to 143-215.6C.
2. The permit issued shall continue in force and effect until revoked or terminated.
3. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for
a permit modification, revocation and reissuance, or termination does not stay any permit condition.
4. The issuance of this permit does not prohibit the Director from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and
regulations contained in Title 15A of the North Carolina Administrative Code, Subchapter 2H.1000;
and North Carolina General Statute 143-215.1 et. al.
5. The permittee shall submit to the Director and shall have received approval for revised plans,
specifications, and calculations prior to construction, for those revisions under any of the following
conditions:
a. - Any additions, deletions or redesign of the previously permitted amount of built -upon area pro-
posed regardless of the size of the modification.
b. Further subdivision of the project area.
6. The permit is not transferable to any person except after notice to and approval by the Director. The
Director may require modification or revocation and reissuance of the permit to change the name and
incorporate such other requirements as may be necessary. A formal permit request must be submitted
to the Division of Environmental Management accompanied by the appropriate fee, documentation from
both parties involved, and other supporting materials as may be appropriate. The approval of this
request will be considered on its -merits, and may or may not be approved.

Permit No.3W8 940814
7.' The issuance of this permit does not preclude the Permittee from complying with any and all statutes,
rules, regulations, or ordinances which may be imposed by other government agencies (local, state and
federal) which have jurisdiction.
Permit issued this the 8th day of November, 1995.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E. , Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit Number SW8 940814

A&K Project No. 94049
DIVISION OF ENVIRONMENTAL MANAGEMENT
DENSITY X
PROJECT DATA
ENGINEERED
Project Name CoviI Estates Phase II, "Pepper_Eree" and "Snug H�rbor II"
Location (County, Township/Municipality, Address, State Road) New Hanover County
Near Military Cut-off and Market Street
Owner's Name Dallas Harris Real Estate Construction
MailingAddress P.O. Box; 531
Wrightsv e Beach, NC 2,9480
Phone Number 910-256--4475
Submittal Date August 10, 1994
Brief Description (include ma d appropriate drawings) Development of 110 single_
family residenti aP%p
Name of Water Body Receiving -Storm -water Runoff Urulamed tributary to Howe's Creek
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 Pkmits/A-i ;ovals Required (Check appropriate blanks)
LAMA Major X Sedimentation/Erosion Control X
404 Permit DEM/DHS Sewage Disposal X
Other (Spec ifv)
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
"Snug
Subwatershed Harbor II"
SA
326,700 SF
30.0 Ac.=1,306,800
25%
326,700 SF
Subwatershed "Peppertree"
SA
304, 920. SF,
SF 28.0 Ac.=1,219,680 SF
25%
304,920 SF
Is the Project B/U Area 5 the Allowable B/U Area? Yes (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 open swales
L Office use only a
1611va Ills ad C
p ECLIU1� bu
AUG 1 1 1994
DEM
`T,R0J in

BUFFER AREA
Is the built upon area at least 30 feet from mean high watef of all surface waters? Yes 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 certifythat the recorded deed restrictions and protective covenants for this project
shall limit the allowable built -upon area per lot to vk*see below 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. *^ "Snug Harbor II" = 6,300 SF
"Peppertree" = 2,650 SF
CERTIFICATION
I, Rodney Q. Harris , 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 restricJti�n statement above. �1
Owner's Signa �/, ��, Dad
Provide authorized person or firm name and address below:
Andrew 6 Kuske Consulting Engineers, Inc.
202 North Fifth Avenue
Wilmington, NC 28401
I, Jeria M. Coleman ,aNotary Publicforthe State of.
County of New Hanover do hereby certify
appeared before me this 10th day of Au
of the foregoing instrument. Witness my hand and o .y►
€ �10TARY•
Pycommission expires 7/ 2 6/ 9 7 PUBLIC
�
°�te�ens�
DIVISION OF ENVIRONMENTAL 1VIANAGEME
Regional Office
Date
Date
Individual Evaluating Forms/Plans
Regional Water Quality Supervisor
North Carolina
0. Harris personally
and acknowledges the due execution
SIGN -OFF
cc: Applicant/WiRO/Bradley Bennett/Central Files

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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
February 10, 1995
Mr. Phil Norris, P.E.
Andrew and Kuske Engineers
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: Swale Velocity Calculations
Covil Estates, Phase III
Stormwater Project No. SW8 940814
New Hanover County
Dear Mr. Norris:
I have again reviewed the calculations submitted for Covil Estates, for compliance with the Curb
and Gutter requirements, and some things must be cleared up. First, I did not suggest using a coefficient
of discharge, C, of 0.4. I was merely pointing out that using a C factor of .25 for this subdivision was
not in line with accepted practice. Actual C values should be determined based on individual drainage
areas, not on an assumption based on an overall density limit of 25 %. Your composite C value is
obtained by assuming that each individual drainage area to each swale contains 25 % -impervious surfaces.
This is not true. A lrage portion of the green area (29 acres) does not flow into a swale, therefore it is
a good assumption that the individual drainage areas to the swales are of a higher density than 25 %.
Second, the procedure outlined in the Erosion Control manual will determine the permissible
velocity for a given section, not the normal depth of flow for a given peak flow. Your job should be to
take the swale cross-section provided and, basest on. Ma_nnings roughness coefficient and the peak flow,
determine how deep the water flows, and in turn, how fast. You have determined only that the swale
section specified on the plans will carry the peak flow. The depth you determine in your calculations is
too deep for the required flow, resulting in inflated cross -sectional areas, and hence, decreased channel
velocity. Using your numbers and Malcolm's normal depth procedure, I determined that swale #1 and
8 normal depths were more shallow than you had calculated, making the cross -sectional area smaller,
hence increasing channel velocity above the allowable 4.5 fps for Bahia grass.
Third, the differences between my numbers and yours are not enough to get too worried over,
however, I would like to be reassured that if excessive erosion occurs in any of these swales, ie., every
storm event causes a problem, something will be done by Dallas Harris, not the homeowner, to fix it.
I don't think the homeowner should be responsible for fixing a problem that was recognized as a potential
problem from the beginning, before the lot was sold.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Phil Norris
February 10, 1995
Stormwater Project No. SW8 940814
The Certification of Compliance will be forwarded under separate cover, with a statement
concerning the potential swale erosion problem and identifying the responsible party for correcting any
deficiencies.
1f you have any questions, please do not hesitate to call me at [phone].
Sincerely,
Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\LETTERS\940814.FEB
cc: (2) Linda Lewis

CURB & GUTTER DENSITY ANALYSIS
PROJECT #: 940814
PROJECT NAME: COVIL ESTATES PHASE II
FILE NAME: S:\WQS\C&G\940814.WK1
REVIEWER: ARL
DATE: 10—Feb-95
Drainage Basin: HOWE CREEK Classification: SA ORW
..................................................... U.........:-: --:.::::.::::.::.::.:::.:::::..,.:................ ......
::...:........ .3+ ..... .
BOTTOM WIDTH B AREA A
SIDE SLOPE M 5.000 WETTED PERIMETER P
MANNINGS N 0.040 HYDRAULIC RADIUS R
SLOPE S
IMPERVIOUS
GREEN
I
Q
S
SWALE # AREA (acres)
AREA (acres)
C—FACTOR
(in/hr)
(cfs)
(ft/ft)
1 3.250
6.750
0.444
6.300
27.956
0.043
2 4.200
10.200
0.419
6.300
37.989
0.018
3 3.500
6.900
0.452
6.300
29.642
0.024
................................................................................................
.................................................................................................
SWALE # DEPTH, y
VELOCITY
EROSIVE VELOCITY
GRASS TYPE
1 1.000
5.591
4.500
Bahia
2 1.30C
4.496
4.500
Bahia
3 1.200
4.117
4.500
Bahia
COMMENTS
ALL SWALE VELOCITIES ARE TOO FAST FOR THE GRASS CHOSEN.

CURB & GUTTER DENSITY ANALYSIS
PROJECT #: 940814
PROJECT NAME: COVIL ESTATES PHASE II
Drainage Basin: HOWE CREEK
FILE NAME: S:\WQS\C&G\940814.WK1
REVIEWER: ARL
DATE: 08-Feb-95
Classification: SA ORW
O
:::::...:::::........................:1 IT.:11`H...................:::.:.:.:.:::::.::::::::..:::.:.:.::::...........................:::::.::::.,::::::::::::::.::::.. :...:..:..:::::. ,..::. .
BOTTOM WIDTH B AREA A
SIDE SLOPE M 5.000 WETTED PERIMETER P
MANNINGS N 0.020 HYDRAULIC RADIUS R
SLOPE S
SWALE # B y A P R Zav Zreq
1 0,000 0.800 3.200 8.158 0.392 1.715 1.810
2 0.000 1.000 5.000 10.198 0.490 3.109 3.801
3 0.000 0.900 4.050 9.178 0.441 2.347 2.568
.............. ...:.:.:>;:.;::.:.;:::.;... ... ...:.:;.::.>.::.::.:. ;l t gl �.... ........:..::.:........
IMPERVIOUS
GREEN
I
Q S
SWALE #
AREA (acres)
AREA (acres)
C-FACTOR
(in/hr)
(cfs) (ft/ft)
S 1
3.250
6.750
0.444
6.300
27.956 0.043
4- 2
4.200
10.200
0.419
6.300
37.989 0.018
1 3
3.500
6.900
0.452
6.300
29.642 0.024
SWALE #
DEPTH, y
VELOCITY
EROSIVE VELOCITY
GRASS TYPE
8 1
0.800
8.736
4.500
Bahia
4 2
1.000
7.598
4.500
Bahia
1 3
0.900
7.319
4.500
Bahia
COMMENTS
ALL SWALE VELOCITIES ARE TOO FAST FOR THE GRASS CHOSEN.
Some how, "j rq,il2*r Cr? 5 ff m� Q s we Yeei cloy but +� �• i f co eS II -
o c e en y,i� peg- v5e 5 ��►'9ar num ems,
res(AfIhAa !h �-qef ��in /ow er-
%'

Andrew, RE.
J.
Andrew & Kuske I
John R•A. Ku ke, P.E.
-- - — CONSULTING ENGINEERS, INC. J. Phillip Norris, P.E.
February 1, 1995
NC Department of Environment, Health
and Natural Resources
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Covil Estates, Phase III
A&K Project No. 94238
Dear Linda:
Enclosed are 3 sets of revised plans and 1 set of calculations. As per your January 25,
1995 correspondence we have revised the calculations to include an Ilo of 6.3 inches per
hour and a C of 0.40. The Composite C was calculated as follows:
C = .25(.95) + 0.75(.20) = .38 (round up to 0.40)
Also, note the entire swale system has been designed using the procedures outlined in
Section 8.05 of the NC Sedimentation and Erosion Control Manual.
The plans and calculations indicate the correct inverts and an additional concrete gutter
was added at the intersection of Fisherman Creek Drive and Pier Point Drive.
Please contact us with additional questions or comments. Thank you for your
assistance on this project.
Sincerely,
ANDRE KUSKE
CONSVLTp4G ENGIN t, INC.
Phillip Norris, E.
JPN/sbs
enclosures
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ENGINEERING & FACILITIES
APPLICATION -7,--q5
FOR File Number
PERMIT 4.,S7D b-0
Fee Paid
FOR
A LAND -DISTURBING ACTIVITY 131
Date
UNDER THE CONDITIONS SET -FORTH BY
THE NEW HANOVER COUNTY
SOIL EROSION AND SEDIMENTATION CONTROL ORDINANCE
Applicant: Dallas Harris Construction & Re4w icant's Agent:
Address: PO Box 531
Wrightsville Beach, NC 28480
Telephone Number:
256-4475
Total Acres of Land Disturbance: 14
Address: PO Box 531
Wrightsville Beach, NC 28480
Telephone Number: 256-4475
Purpose -of Development: Single Family Residential
Location and Description of Land Disturbance:
Covil Estates Phase III
Covil Point
Approximate Start Up Date: Feb. 95 Approximate Completion Date: Feb. 97
STATEMENT OF FINANCIAL RESPONSIBILITY
Land owner(s) of Record Person or firm(s) financially responsible
for the land-disturbin activ't
Dallas Harris Construction & Realty Dallas Harris Construction & 6ya.lty
Name: Name:
Address: PO Box 531
Wrightsville Beach, NC 28480
256-4475
Telephone Number:
Address: PO Box 531
Wrightsville Beach, NC 28480
256-4475
Telephone Number:
Location of deeds) or instrument (s) : County New Hanover Book Page
County Book Page
The above information is true and correct to the best of my knowledge and belief and was
provided by me while under oath. (This form must be signed by the financially responsible
person if an individual and by an officer, director, partner, attorney -in -fact, or other
person of authority to execute instruments for the financially responsible person if not
an individual.)
Date: 1-23-95 Name (Type or Print) Rodney Q. Harris
Title- . ©.e,,-
Signature `

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CONSULTING ENGINEERS, INC.
January 17, 1995
NC Department of Environment, Health
and Natural Resources
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Covil Estates Phase H
Stormwater Revisions
A&K Project No. 94238
Dear Linda:
JAN 18 1995 U
John R. Andrew, P.E.
J. A. Kuske, P.E.
J. Phillip Norris, P.E.
Enclosed are a marked -up plan delineating the drainage areas for each swale and
revised calculations for swale Nos. 1, 4, and 8. We use an "n" value of 0.03 to better
approximate flow in a channel with short grass. We have also revised the area
calculations to include the entire contributing sub -areas. Upon review of the revised
calculations the peak velocities remain below the 4.5 fps allowed in Bahia lined
channels.
Please review for approval and contact us with questions or comments or if you need
additional information.
Sincerely,
ANDREW & KUSKE
C S TING 4NGINEERS, INC.
Phillip G. Tripp, P.
PGT/sbs
enclosures
9423"
JAN 1 8 1995
ID E I■,
PROJ
202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910-343-9604

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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
January 25, 1995
Mr. Phil Tripp, P.E.
Abdrew and Kuske Engineers
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 940814
! Covil Estates Phases 2 and 3
r'jh 1 New Hanover County
DearMr—.Tnpp:
The Wilmington Regional Office received previously requested information for Covil Estates
Phases 2 and 3 on January 18, 1995. A preliminary review of that information has determined that the
submittal for the subject project is not complete. The following information is needed to continue the
stormwater review:
1. Based on your area delineations, we match up very well, therefore, I am safe in saying
that my calculations of velocity are accurate. It appears that you are assuming that the
individual drainage area is 25 % density, but this is not true. The C factor in the runoff
equation is a runoff coefficient, not an estaimate of density. Malcolm uses a C factor of
.40 for residences at 2 dwellings per acre, but this is too low when you consider the
individual drainage area, to impervious area percentages. Some are as high as 50%. Please
reconsider your use of .25 a runoff coefficient.
2. The slopes that you use for the swales is considerably less steep than I used. Please add
the appropriate invert elevations to the plans so that I may use the same slopes that you
do. I ran the computer program with the revisions and the results are
3. An additional concrete flume should be placed across the intersection nearest to and uphill
from Swale #8, in order to direct the drainage from Pier Point Drive to Swale #8.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
January 25, 1995
Stormwater Project No. SW8 940814
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to February 25, 1995, or the submittal will
be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
i f �
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\940814.JAN
cc: (2) Linda Lewis
Central Files
2

Description
Exhibit I
Table of Rational runoff coefficients
C
Source
Roof, inclined
1.00
Malcom
Street, driveway, sidewalk
0.95
Chow, 1964
Parking lot
0.90
Malcom
Roof, flat
0.90
Malcom
Commercial, generalized
0.85
Malcom
Apartments, schools, churches
0.60
WSSC, c.1968
Residences, 10 dwellings/acre
0.60
Malcom
Residences, 6 dwellings/acre
0.55
Malcom
Residences, 4 dwellings/acre
0.50
Malcom
Residences, 2 dwelling /acre
0
Malcom
Unimproved cleared area
0. 55
Malcom
Lawn, dense soil, steep >7%
0.35
Chow, 1964
Playground
0.35
Chow, 1964
Park, cemetery
0.25
Chow, 1964
Lawn, dense soil, avg 2-7%
0.22
Chow, 1964
Wooded, sparse ground litter
0.20
Malcom
Lawn, dense soil, flat 2%
0.17
Chow, 1964
Lawn, sandy, avg 2-7%
0.15
Chow, 1964
Lawn, sandy, flat <2%
0.10
Chow, 1964
Wooded, deep ground litter
0.10
Malcom
VI-2

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
January 10, 1995
Mr. Phil Tripp, P.E.
Andrew and Kuske
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 940814
Covil Estates Phase Il
New Hanover County
Dear Mr�� pp:
The Wilmington Regional Office received previously requested information for Covil Estates,
Phase II on December 28, 1994. A preliminary review of that information has determined that the
submittal for the subject project is not complete. The following information is needed to continue the
stormwater review:
1. My calculation of runoff quantity, depth, and resultant velocity for the three major swales,
#1, #4, and #8, are considerably larger than yours, possibly due to the 0.02 Mannings' "n"
you use and the 5.0 inches per hour rainfall intensity you use. The range of Mannings'
"n" for earth channels with short grass and a few weeds is 0.022 - 0.033. I use 0.03 as
an average. The regulations require that the peak flow from the 10 year storm be able to
pass through the Swale in a :non -erosive velocity. The dine 6f concentration should be
close to 10 minutes, since the longest distance travelled is 1,170 feet along pavement at
approximately 2.5 feet per second. The peak flow would then be associated with an
intensity of 6.3 inches per hour.
2. You do not delineate your drainage areas, therefore, I have assumed, based on the flow
arrows, the road, lot, and house area that drains to each swale. Again, my numbers give
peak velocities for each major swale at approximately 5.1 - 6.2 fps, well above the
allowable velocity for Bahia grass of 4.5 fps, and well above your calculations.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
January 10, 1995
Stormwater Project No. SW8 940814
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to February 10, 1995, or the submittal will
be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone] to
schedule an appointment to see my calculations and delineation of drainage areas.
Sincerely,
4�6&X' A�
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\940814.JAN
cc: (2) Linda Lewis
Central Files
2

Appendix Q MANNING'S NUMBER TABLES (continued)
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A=15

Andrew &Kuske John R. Andrew, P.E.
CONSULTING ENGINEERS, INC., J. A. Kuske, P.E.
J. Phillip Norris, P.E.
December 22, 1994
NC Department of Environment, Health
and Natural Resources
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Covil Estates Phase II
Revised Stormwater Submittal
D.E.M. Project No. SW8 940814
A&K Project No. 94238
Dear Linda:
We are in receipt of your December 14, 1994 correspondence. Enclosed are 3 sets of
revised plans, 1 set of revised calculations and 1 set of additional calculations for your
approval. We offer the following in response to your comments.
1. The mean high water line has been labeled. The 31.85 acres is measured from
this line.
2. The detail has been revised to indicate a 41' radius.
3. The detail has been revised to indicate a 23' street section.
4. We enclose additional calculations and/or additional control measures to address
each swale.
Please review for approval and contact us with any questions or comments or if you
need additional information. Thank you for your assistance on this project.
Sincerely,
ANDREW & KHSKE
N ULTkNG E GINEERS, INC.
Phillip G. Tripp, P.E.
PCT/sbs
enclosures
94238-4
v E U� � V�
bu
0EC 2 5 1994
DEIYI
»IQT # SwB _403t4
202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910-343-9604

Date Design Andrew and Kuske Sheet
P&-r 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401do Of
Check Job For Job No.
�L70exn�-rE2 �AGCs, �alrc. �SrArES A qz-z38,
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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
December 14, 1994
Mr. Phil Tripp, P.B.
Andrew and Kuske
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 940814
Covil Estates Phase II
New Hanover County
Dear Mr. Tripp:
The Wilmington Regional Office received a Stormwater Submittal for the Covil Estates Phase II
on August 11, 1994. A preliminary review of that information has determined that the submittal for the
subject project is not complete. The following information is needed to continue the stormwater review:
1. Is the 31.85 acres noted as the area of the AEC measured above the Mean High Water?
Please draw in and label the MHW.
2. You are accounting for the cut -de -sacs as a 41' radius in the calculations, but the detail
shows a 31' radius. Which is correct?
3. You are accounting for the road width as 23' in the calculations, but the detail shows a 22'
width BG-BG.
4. All velocities in the proposed grassed swales exceed the maximum permissible for Bahia
grass. Installation of check dams will only provide longer detention times. It will not
reduce the initial velocity above the first check dam sufficiently to prevent erosion. Some
possible solutions include deeper drop inlets, increasing the bottom width of the swale or
specifying a type of grass cover that will allow a higher velocity prior to eroding (like
centipede sod) .
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone]o0 0 Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
December 14, 1994
Stormwater Project No. SW8 940814
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to January 14, 1995, or the submittal will
be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\940814.DEC
cc: (2) Linda Lewis
Central Files

CURB & GUTTER DENSITY ANALYSIS
PROJECT #: 940814
PROJECT NAME: COVIL ESTATES PHASE II
Drainage Basin: HOWE CREEK
FILE NAME: S:\WQS\C&G\940814.WK1
REVIEWER: ARL
DATE: 14-Dec-94
Classification: SA ORW
BOTTOM WIDTH B AREA A
SIDE SLOPE M 5.000 WETTED PERIMETER P
MANNINGS N 0.030 , 0,Z HYDRAULIC RADIUS R
SLOPE S
SWALE # B y A P R Zav Zreq
1 0.000 0.900 4.050 9.178 0.441 2.347 2.356
2 0.000 1.100 6.050 11.218 0.539 4.009 4.638
3 0.000 0.900 4.050 9.178 0.441 2.347 2.904
IMPERVIOUS GREEN
1 CO.3
Q
S
SWALE #
AREA (acres) AREA (acres)
C-FACTOR (in/hr)
(cfs)
(ft/ft) C)4
S
1 3.250 &7,1 5 4-79G
0.507 rQlt.'46 6.300
25.373
0.047
4
2 3AN�},2 -&ON
10,2 0.427 0..c. 6.300
30.908
0.018 ✓
4
3 3.500 31:260
0.592 , ¢(p 6.300
24.980
A.0.2& , *9
(f.y
,024-
SWALE # DEPTH, y
VELOCITY
EROSIVE VELOCITY
GRASS TYPE
1 0.900
6.265
4.500
Bahia
2 1.100
5.109
4.500
Bahia
3 0.900
6.168
4.500
Bahia
COMMENTS
ALL SWALE VELOCITIES ARE TOO FAST FOR THE GRASS CHOSEN
�4314e 1)Se5 t1 = .62
Re s re3u lre lU yr s6,-/n e-�le- -'low
o%l,nc �Jae.ol. [:n 1itee,- -Flow r Zfe5 Cop s1der 2
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Gvl-/ 3 x &4go Z Zo 3 ZO
Snv f wba- Tl 44� x 4Y30 = Z(Z<5Zo
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T�f S Qc
S(o pe o l

Andrew, P.E.
Andrew & Kuske ° ���� �� John J. R.A. Kuske, P.E.
CONSULTING ENGINEERS, INC. ULG 0 0 139J. Phillip Norris, P.E.
December 6, 1994
NC Department of Environment, Health
and Natural Resources
Division of Environmental Management
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Covil Estates Phase II
Peppertree, Snug Harbor II & Covil Point
Revised Submittal Data
A&K Project No. 94238
Dear Linda:
Based on our recent telephone conversation we have revised our plans and calculations
and enclose them for your review and approval. We have included within the plans our
cover sheet to serve as vicinity map. Also included are maintenance requirements for
curb and gutter swales, and within the plans we have included our detail sheet. Please
note we have removed the driveway areas from our impervious calculations and
increased our allowable per lot coverage by an identical amount.
We trust this will complete our submittal. Please feel free to contact us with additional
questions or concerns. Thank you for your assistance on this prgject.
Please contact us with any questions or comments or if you need additional
information.
Sincerely,
ANDREW & KTJSKE
CONSULT G EN INFERS, INC.
Phillip G. Tripp, P.E.
PGT/sbs
enclosures
cc: Rodney Harris/Dallas Harris Real Estate Construction
94238-2
VL
U
Flu, 0 9
DFEM
-oj sw g 940,?14
202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910-343-9604

A&K No. 94238
Project Name.
Cavil Point
Responsible Party: Cavil Point Hcmeowner's Association
VS
CURB AND GUTTER MAINTENANCE REQUIREMENTS
DEM
^R01 5Gu `too S14
Project No.
Phone No.
i�GEuuL bu
DEC 0 9 1"4
256-4475
Address: P.O. Box 531 Wkightsville Beach, NC 28480
1. Mowing will be accomplished as needed according to the season. Grass height will not
exceed 6" at any time.
2. Swales will be inspected monthly or after every runoff producing rainfall event for
sediment build-up, erosion, and trash accumulation.
3. Accumulated sediment and trash will be removed as necessary. Swales will be reseeded
or sodded following sediment removal.
4. Eroded areas of the swales will be repaired and reseeded. Swales will be revegetated as
needed based on the monthly inspections.
5. Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly
or after every runoff producing rainfall event. Trash and debris will be cleared away from
grates, curb cuts, velocity reduction devices, and piping.
G, Prior 4a be;n9 +Orned over -6 foie Howowaer's Assooi-o on eaci
sw ale wit( be inspected . ARed
of g4h at corn i�nges � he
a problem wall be permoneni $�m%e deve%/�er. 7'h,'s ex�iudr5
robtine +maintenance Ite►ns such�as resvecy * AnZnor erosion.
I acknowledge and agree by my signature below that I am responsible for the performance of the
above maintenance procedures.
Signature Date: &/c y
0., '- N . CO)f rv-4 rs , a Notary Public for the State of ('arc 1l nR. ,
County of `'n�W a,,M1y� r , do certify that j2, ba KQy Q, a w r i S
-
personally appeared before me this day of I e cg P. b.e.w , 19_qq _, and
acknowledge the due execution of the foregoing instrument. Witness my hanC�
OTARy.
My commission expires 7- We - 91 aR$ PUB
L1C
DA/arl: S:1W QSISTORMWAnFORMSIO&M-C&G.,FOR

Date Design Andrew and Kuske Sheet
202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 � Of `r
r
l4glv*o Check Job For Job No.
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DEC 2 8 199�
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dZ8)Zb = Cie, (3
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Date Design Andrew and Kuske Sheet
`r 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 Z Of 4
Check Job For 61iL
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I•Z"D= .oz c5J z)`a.�R) o I
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d = o•z�'
= Z�`I r-PS �Z•� ,NCO 51b.4 �� k
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Date Design Andrew and Kuske L
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(Z-(-q�T 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 Of
z_Zf—R� Check Job For �S-c�ncs T (St �erZ3g
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Date Design Andrew and Kuske Sheet
lz-l-q4l por 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 `i Of
'Qk.1. Check Job For Job No.
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202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 j Of
Check Job For Job No.
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6 . tt �
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(Cef" cvw moo &AOFA-)
f leme--rakc &rw�fq
Q= 0,z6(r.0)3.7=
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DEC 0 9 1994
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Date Design Andrew and Kuske Sheet
1�_I_c� 202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401 Of 4
Check Job For Job No,
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�a = I-OZ C�L)(o �a�zc3 ,ate
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Date Design Andrew and Kuske Sheet 000
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Check Job 4_ For o Job No.
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'50gcti. IWF-t g Pxz---114 (.Ms !(- L n ELf.4 ta.s
La Z = I �51 q(b.41 d `rl3 ,o3s?,
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Y= 5 FPS -7 Z..S Vr- s-, ti 4e"Sr'c DAM$
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Syitacic �o. %
!i = 0,13 FrZ
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202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401
Check Job /� For Job No.
L
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tt = I , IS Frz
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Date
I(-ZZ-q
Design
Ft;i
Andrew and Kuske
202 N. Fifth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401
Sheet
Z Of
Check
Job
6TZW-M�4'e �AC�S .
For
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Job No.
C'Notp .94
T;t-
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State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager
December 1, 1994
Mr. Phil Tripp, P.E.
Andrew and Kuske
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: AIi➢I➢IT OVAL 1NF'ORMATION
Stormwater Project No. SW8 940814
Covil Estates Phase II
Peppertree, Snug Harbour H, Covil Point
New Hanover County
Dear Mr. Tripp:
The Wilmington Regional. Office received a revised Stormwater Submittal for Covil Estates Phase
H - Peppertree, Snug Harbour H, and Covil Point on November 28, 1994. A preliminary review of that
information has determined that the submittal for the subject project is not complete. The following
information is needed to continue the stormwater review:
1. A location map.
2. A signed and notarized operation and Maintenance plan.
8. Sealed velocity calculations for the 100' grassed swales.
4. Your calculation of built -upon area has included the driveway connections from the edge
of the road to the property line. It is not necessary to break this number out. The built -
upon area per lot will cover any driveway connections.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
December 1, 1994
Stormwater Project No. SW8 940814
-----------------------------------------
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to January 3, 1995, or the submittal will
be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Nis. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\940814.DEC
cc: (2) Linda Lewis
Central Files
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INLET
1
4" III GRAVEL FILTER -µE5 v " u uuu11
_ - WIRE SCREEN CONC. BLOCK N CASTI G
III =III=1 I 1=11 hI I I-)
III �- I I.I = GRAVEL FILTER CH BNU3A FOR CATCH
ill ��
3
„ p CONC. COLLAR BASINS AND CH-BN-47
ADC WIRE SCREEN FOR YARD INLETS
STONE BASE FILTERED WATER RUNOFF WATER OVERFLOW FILTERED WATER
OVERFLOW w/SEDIMENT
RUNOFF WATER D- PLAN
W/SEDIMENT
DETA (� ' A' "I CONC. COLLAR 1 •-� ASPHALT PAVEMENT
4SEDIMENT
N.T.S. seolMlarr oROP INLET w/GRATE
WIRE SCREEN CURB INLET ELEV. VARIES
2X4 WD STUD
1 1 /2" TYPE 1-2 (NCDOT) SPECIFIC APPLICATION SPECIFIC APPLICATION 2' I
THIS METHOD OF INLET PROTECTION IS THIS METHOD OF INLET PROTECTION IS BRICK MASONRY
APPLICABLE WHER HEAVY FLOWS ARE APPLICABLE AT CURB INLETS WHERE AN
EXPECTED AND WHER AN OVERFLOW CAPACITY OVERFLOW CAPABILITY IS NECESSARY TO
6" ABC STONE (NCDOT) IS NECESSARY TO PREVENT EXCESSIVE PREVENT EXCESSIVE PONDING IN FRONT FLOW -
PONDING AROUND STRUCTURE OF STRUCTURE i
EROSION CONTROL UN INLETS
NTS 3000 PSI CONC. ';• : ,. ... 93
bo
4" •
4 NOTE:
DROP INLET TO HAVE SAND
TRAP, DROP FOOTING I Z do
NOTE: PAVEMENT 'SECTION MAY VARY SECTION LEAVE OPENING AS SHOWN
DEPENDING UPON FIELD CONDITIONS.
CONTRACTOR SHALL COORDINATE
w/OWNER & GEOTECHNICAL - - - I INLETD" R Q P T 1
ENGINEER TO DETERMINE �tT�TTT-T-f ,�TT1II=7_
ACTUAL PAVEMENT SECTION, I _ e I I=) I I-'
4
PAVEMENT SECTION _ - '
4-,
O°
TYPICAL GRASS SWALE --
s N.T.S. - �. / e _ i i _
- -
dil
=E.
20' LRAM
3" MIN. COMPACTED STONE
-
20' RADIUS� /
�d
CONCRETE FLUME
eJ �
so' N.T. S.
t22' B-B
40 ROW J�
O
30' RAL!US 30' RADIUS 6" MIN.
Zr, - Isr,
COARSE AGGREGATE
m
m
tA
TEMPORARY GRAVELLED CONSTRUCTION ENTRANCE
TYPICAL. 40' ROAD PLAN N.T.S.
N.T.S.
40' RIGHT-OF-WAY
3.0"
•-0" 22'-0" B-B 6'-
3:1 MAX. 1 2"/FT 1 /4 /FT 1/4!/FT 1 /-!� � 3:1 MAX.
SLOPE TO SLOPE TO
GRADE GRADE
. 4
,Q
Ir ABC
1-1/2" NCDOT 1-2 ASPHALT
TYPICAL 40' ROAD CROSS --SECTION
N.T.S. (PRIVATE ROAD)
BLOCKING
DIMENSIONS
PIPE SIZE
QA
©
Q
UP TO 1 Cr
4'-0"
2'-6"
1'-er
12" TO 18"
5'--0"
4'-0"
2'-0"
18" TO 2e
8'-0"
6'-O"
3'-O"
60' RIGHT-OF-WAY
6' DITCH 6' SHUDR 6' SHUDR HOTIO 'ii �g �
20' PAVEMENT g13t�IC IL
'... SOtE
BACKFLL
5'-O"
1"/FT 1"/� ` - 4:1 SLOPE
2.1 1 /� 4" /FTC 1 4: /FT
4:1 SLOPE a_" .. SECTION PLUG
ABC STONE BASE b
PROPOSED 1-1/r NCDOT 1-2 ASPHALT °' PLAN BEND
WOO MAIN PROPOSED
SON. SEWER (g
GRAN
G ® t tTut� SOIL
STD BASE
TYPICAL 60' ROAD CROSS --SECTION
PLAN -- TEE SECTION - BEND & TEE _
N.T.S. (PRIVATE ROAD) ErZ�Ast:o Lx4
� '' TKEt�TED lx4
CONCRETE BLOCKING -//,W/�
p F• 2.
` G
50' RN.T.S. IGHT-OF-WAY � at I - =:ov
6' SHL'DR 6' SHUDR l tdX . 4y' Ccx tart /anGX!
:.
aAu oEtil�
5 -0" r
22'-0" B-B,�ty" SUiE
2:1 SLOPE 21 SLOPE cnrsalunIToN
Va.W.. (3LE SLotb5 ^L}DS
1.�<• Mit•NMUM
1/a /ET 1 le /FT r I i . 3I
�� NIPPLE per
Z
", :. / LOUt.Tj•''•{ K�GtUII�M$t.t'(S.'. TyfAttJ
6" ABC STONE BASE t rAIIJ fir'
PROPOSED 1-1/2" NCDOT 1-2 ASPHALT SEEPROPOSED Fd .510E. SF-LVC-P 69PV1GE I
WATER MAW DETAIL 'A SAN. SEW _ TLIpiG/�G,_ OE'fG1 IL i�1E[lta Sites SEIU�KZ
NOT TQ..:y�LE T�hIGd GLiL
TYPICAL 50' ROAD CROSS-SECTION wor zo
N.T.S. (PRIVATE ROAD)
k
4'i -CAST W-ON
Filter
r
4
\15NT STACK,
fabric
WAT512. TIGHT'
FAIINT50' YELLOW
f4H. RING a COVER •\}
Wp4/j1CGT 5cef iEN
MIN. WEIGHTS :
A
FRAME: 208 LBS.
COVER: 120 LBS.
t1C00T
;PRECAST 4'�
Class A or B
RISER RING
Erosion Control
PRECAST
W/CASPRECAST
MH STE S
IN (STEPS
Stone
M.H. STEPS i-O" O.C.
Z
AT 12"O.C.
Filter
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fabric
at center
Section A -A
MANHOLE DIAMETER
SHAD: BE I'-O" LARGER
I
y
THAN LARGEST PIPE
OORMOW
$
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(4-0" MIN.)
L
STONE CHE�CK p,AtM
6"POURED BASE' +"-
-
3'- 3"
3'- 21/4"
CONC.M.H.BLOCKS
PRECAST M.H. RINGS
SITE
WORK NOTES:
SECTION
1.
THE CONTRACTOR SHALL VISIT THE SITE TO BECOME FAMILIARIZED WITH
FIELD CONSTRUCTION CONDITIONS.
2.
CONTRACTOR SHALL COORDINATE WORK WITHIN NCDOT AND LOCAL RIGHT
WAYS WITH PROPER AUTHORITIES AND SHALL MEET ANY REQUIREMENTS A
4,
TO TRAFFIC CONTROL AND CONNECTION TO EXISTING STREETS.
MANHOLE DETAIL WITH VENT
3.
CLEARING AND GRUBBING: REMOVE ALL TREES, STUMPS, ROOTS,
N 1-5
SHRUBBERY, ASPHALT, CONCRETE, STRUCTURES, BURIED UTILITIES,
STORAGE TANKS, ETC. WITHIN LIMITS OF CONSTRUCTION.
4.
STRIPPING: BEFORE EXCAVATING OR FILLING, REMOVE ALL TOPSOIL,
WOOD, LEAVES, AND ANY OTHER UNSUITABLE MATERIAL.
5.
MUCKING: REMOVE ANY SOFT, ORGANIC SILT MATERIALS AND EXISTING
BURIED CONSTRUCTION DEBRIS AS REQUIRED AND FILL TO SUBGRADE
ELEVATIONS WITH A CLEAN SELECT -FILL COMPACTED AS SPECIFIED.
9' -0"±'
4' -0"i
VARIES
2'-0.
'
6.
DISPOSAL: CLEARED, GRUBBED, STRIPPED OR EXCAVATED SPOIL SHALL E
VARIES
REMOVED FROM SITE.
WATER MAIN CL VALVE
-,I
GREET
I
al
7.
BORROW MATERIAL: THE CONTRACTOR SHALL FURNISH BORROW MATERIAL
18"4ix 611CONE. ' PAD AROUND Box
I
REQUIRED FROM OFF SITE AND OBTAIN ALL REQUIRED PERMITS ASSOCIATI
I
WITH BORROW OPERATIONS.
I.
8.
FILL AND COMPACTION: AFTER STRIPPING, THOSE AREAS DESIGNATED TO
TELESCOPIC
I
RECEIVE FILL SHOULD BE PROOFROLLED WITH A 10-TON VIBRATORY STEE
POURED IN PLACE
VALVE; Box
I
WHEELED ROLLER TO COMPACT THE TOP 8" TO AT LEAST 98% OF MAXIM
GONG. BLOCK
DENSITY AT OPTIMUM' MOISTURE CONTENT. ANY AREA WHICH PUMPS OR
a
'
'
RUTS EXCESSIVELY SHOULD BE UNDERCUT AND REPLACED WITH A CLEAN
6-M.J. GATE VALVE
CRUSHED
SILTY OR CLAYEY SAND HAVING A UNIFIED SOIL CLASSIFICATION OF SP,
STONE
SM OR SC. FILL MATERIAL SHALL THEN BE PLACED IN LAYERS NOT TO
+
•,
EXCEED Er AND COMPACTED TO AT LEAST 95% OF THE STANDARD PROC'
MAXIMUM DRY DENSITY (ASTM D-698), WITH THE UPPER _12 INCHES OF
2-3/4.4 TIE Roos ,
SUBGRADE BEING COMPACTED TO 98% OF THE STANDARD PROCTOR MAXII
NOTES
DRY DENSITY. IN AREAS WHERE NO STRUCTURAL FILL IS TO BE PLACED
6"0 PIPE PotI N PLACE
CONE. BLOCK
THE UPPER 12 INCHES OF IN -PLACE SUBGRADE SHOULD BE COMPACTED
1. DO NOT BLOCK HYDRANT DRAIN w/BLOCKING. 3'MIN.: LENGTH
AT LEAST 98% OF THE STANDARD PROCTOR MAXIMUM DRY DENSITY. IF
MATERIAL IS TOO DRY TO COMPACT TO THE REQUIRED DENSITY EACH LAN
2. COAT TIE RODS 8 NUTS w:COAL TAR EPDXY. M.J. TEE 2-3/4"4 TIE Roos
-
SHALL BE WETTED IN ACCORDANCE WITH COMPACTION REQUIREMENTS. IF
3. DO NOT SUPPORT VALVE Box DIRECTLY ON VALVE.
THE MATERIAL IS TOO WET TO SECURE PROPER COMPACTION, IT SHALL E
HARROWED REPEATEDLY OR OTHERWISE AERATED WITH SUITABLE EQUIPME
UNTIL OPTIMUM MOISTURE CONTENT IS OBTAINED. FILL SHALL BE PLACE'
IN SUCH A MANNER THAT THE SURFACE WILL DRAIN READILY AT ALL
TYPICAL WATERLINE & HYDRANT CROSS SECTIONS
TIMES.
NTs
9.
LAYOUT: THE CONTRACTOR SMALL PROVIDE ALL LAYOUT REQUIRED TO
CONSTRUCT HIS WORK.
10.
THE CONTRACTOR 1S RESPONSIBLE FOR THE LOCATION AND PROTECTION I
EXISTING UTILITIES DURING CONSTRUCTION.
11.
EXISTING BOUNDARY AND TOPOGRAPHIC INFORMATION FROM SURVEY BY
NORRIS-WARD & ASSOCIATES AND PROVIDED BY OWNER.
POUR 2' SQUARE x 4" DEEP
12.
THE CONTRACTOR SHALL VERIFY DIMENSIONS AT JOBSITE.
CONE. PAD AROUND VALVE BOXES
TYPICAL
13.
THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION OF RELOCATIC
EDGE of PAVEMENT
OR DISCONNECTION OF ALL EXISTING UTILITIES WITH APPLICABLE
GRADE
AGENCIES AND AUTHORITIES.
VALVE BOX COVERS
71-
14.
ALL PAVEMENT AND BASE MATERIALS AND WORKMANSHIP SHALL CONFORM
- ,
NCDOT STANDARDS.
15.
WATER AND SEWER SERVICES SHALL BE INSTALLED TO MEET LOCAL AND
STATE PLUMBING CODES. METER ANDTAPSSHALL MEET ALL LOCAL
IPREADED
REQUIREMENTS.
VALVE BOXUPLING
2" GATE VALVE
16.
ALL AREAS SHALL BE GRADED FOR POSITIVE DRAINAGE.
SCREWED FITTIN
IRON BODY
~
17.
SEE GEOTECHNICAL REPORT DATED FOR
2" SDR 21 or SCa 40
2
C.I.P. TYPICAL
ADDITIONAL REQUIREMENTS.
6" SDR 21
oilCONC.
PAD
18.
CONTRACTOR SHALL NOTE THAT EARTHWORK QUANTITIES ARE HIS
6" RESTRAINT COLLAR
RESPONSIBILITY. PLANS DO NOT REPRESENT A BALANCED EARTHWORK
TAMPED BACKFILL �"•
CONDITION.
4'-0"
90• ELL
19.
REINF. CONC. PIPE SHALL BE CLASS III W/RUBBER GASKETED JOINT OR
SCREWED FITTING
"RAM NECK". INSTALL PER MANUFACTURER'S REQUIREMENTS.
20.
USE WHITE LANE MARKING PAINT FOR ALL PAVEMENT -MARKINGS. PAINT
BLOW -OFF DETAIL
SHALL BE A CHLORINATED RUBBER ALKYD, FS TT-P-115, TYPE 111,
FACTORY MIXED, QUICK DRYING, NON -BLEEDING.
NTs
21.
NO CUT OR FILL SLOPES SHALL EXCEED A SIDE SLOPE OF 1 VERTICAL 1
3 HORIZONTAL.
22,
ALL DISTURBED AREAS SHALL BE GRASSED WITHIN 30 DAYS OF
DISTURBANCE.
V to' MAX.
23.
ALL EROSION
S N SHALL BE CONTROLLED INCLUDING SIDE SLOPES BEFORE Tk
Srm Oft WOOD IM
PROJECT IS COMPLETED.
WIRE FABRlC
WIRE
24.
MORE STRINGENT MEASURES SHALL BE USED TO HALT EROSION IF THOSE
WIN. 12-1/2 GA
MnIER11EDiAtE WIRES
FACc
SHOWN ON THIS PLAN ARE NOT EFFECTIVE.
25.
INSTALL EROSION CONTROL MEASURES BEFORE BEGINNING CONSTRUCTION
AS SOON THEREAFTER AS POSSIBLE.
ANCHOR FABRIC Si(l2T
I I ,,S oIREM er EzaaMM
26.
CONSTRUCT THE DROP INLETS WITH PROTECTION TO ACT AS A SILT BASIS
DURING CONSTRUCTION.
U
�_
U
27.
MAINTAIN ALL MEASURES UNTIL THE PROJECT IS COMPLETE. REMOVE
ACCUMULATED' SILT AS NEEDED TO KEEP THEM FUNCTIONING' PROPERLY.
28.
REMOVE TEMPORARY MEASURES UPON COMPLETION OF PROJECT. ALL
NOTES:
PERMANENT MEASURES WILL BE WELL ESTABLISHED BEFORE PROJECT CL(
OUT.
1. FENCE FABRIC Stall BE A MIN. OF 3Y IN ANO
%JA L HAVE A MOL OF SM LINE WIGS WITH i STAY
SPA01aG.
2. FABRIC SHALL BE FOR EROSiWM COWROL AHD W. OF
A
3W w WIDTH. FABRIC SMW.L BE FASTENED
ADW ATELY TO THE MK FAM AS OM MO BY THE
t]aUaEER
1.5'
3. STEEL POST SHALL BE W-d' IN HOGNf AM BE OF TIME
9
m I n
SELF-FASTO Ot S[EET. ANGLE TYPE
4. WOOD POST' MALL BE A MIN. OF V IN H]git AND 3'
TO V IN DWAETER. WIRE FAWX SHALL BE FASTENED
lLeMEkiIS M WOODEN POST WrH NOT LESS 7"09 WESTAOLE
Fitter
t 1/7 LONG
fabric
jEMPORARY SILT EENCE
t e-001- A
Class A or B
Erosion Control
Stone � �+
Filter ?7 24" max
fabric at center
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Date Design Andrew and Kuske 2Sheet�VW-r 202 N. Ffth Ave. CONSULTING ENGINEERS, INC. Wilmington, N.C. 28401
9- R'Z
� Check Job For Job No.l��
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—= Andrew & Kuske
CONSULTING ENGINEERS, INC.
November 22, 1994
NC Department of Environment, Health
and Natural Resources
Division of Environmental Management
127 Carding Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Covil Estates Subdivision
Stormwater Density Submittal
A&K Project No. 94238
Dear Ms. Lewis:
NOV 2 81994 D
John R. Andrew, P.E.
J. A. Kuske, P.E.
J. Phillip Norris, P.E.
Enclosed please find 3 site plans, a submittal form for projects using density limits for
stormwater control, and calculations for the subject project. Please review this
information for approval under the density limit submittal_ The Owner is aware that he
cannot modify the property prior to submitting a separate stormwater management plan.
Please let us know if you have any questions or require additional information.
Thank you for your assistance on this project.
Please contact us with any questions or comments or if you need additional
information.
Sincerely,
ANDREW & KHSKE
CONSULTING E"ERS,C.
. %. 'b
Q
Phillip G. ripp, P..
PGT/sbs
enclosures
cc: Rodney Harris/Dallas Harris Real Estate Construction
94238-1
E C E 0 V E
NOV 2 8 1"4 bu
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202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910-343-9604

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary Regional Manager
October 19, 1994
Mr. Phillip G. Tripp, P.E.
Andrew & Kuske Consulting Engineers
202 North Fifth Avenue
Wilmington, North Carolina 28401
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 940814
Covil Estates Phase II - Peppertree & Snug Harbor II
New Hanover County
Dear Mr. Tripp:
The Wilmington Regional Office received a Stormwater Submittal for the Covil Estates Phase II -
Peppertree and Snug Harbor II on August 18, 1994. A preliminary review of that information has
determined that the submittal for the subject project is not complete. The following information is needed
to continue the stormwater review:
1. Delineate the 575' AEC on the plans and provide calculations to support 25 % built -upon
in this area.
2. Include a location map on the plans.
Operation and Maintenance Plan for the stormwater controls (Curb and Gutter swales,
etc.)
4. As this project appears to utilize Curb and Gutter stormwater controls, please highlight the
drainage areas on a set of plans and include calculations to support non -erosive velocities.
5. Include all section details on plans and label side slopes on roadside swales and Curb and
Gutter drainage swales.
127 Cardinal Drive Extension, Wilmington, N.C. 2MS-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Tripp
October 19, 1994
Stormwater Project No. SW8 940814
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to November 19, 1994, or the submittal
will be returned as incomplete.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
16. ""' "J&&)
Greg s
Environmental Technician V
DA/ges: S:\WQS\STORMWAT\ADDINFO\940814.00T
cc: Mr. Rodney Q. Harris, Dallas Harris Real Estate Construction
(2) Greg Stuffs
Central Files
127 Cardinal Drive Extension, wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer
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Andrew & Kuske
CONSULTING ENGINEERS, INC.
August 11, 1994
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NC Dept. of Environment, Health and
Natural Resources/Div. of Environmental Mgmt.
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Cavil Estates Subdivision
Revised Stormwater Density Submittal
A&K Project No. 94049
Dear Ms. Lewis:
John R. Andrew, P.E.
J. A. Kuske, P.E.
J. Phillip Norris, P.E.
Enclosed please find a revised submittal form for projects
using density limits including revised deed restrictions and
calculations for the subject project. Please note our
revised calculations reduce the allowable impervious per lot
for Snug Harbor II and increase Peppertree while the overall
remains less than 25%. Please review this information for
approval under the density limits. The Owner is aware that
he cannot modify the property indicated on the plans as
"future development" prior to submitting a separate
stormwater management plan. Please let us know; if you have
any questions or require additional information.
Thank you for your assistance on this project.
Sincerely,
ANDREW & FUSKE
CONSULTING ENGINEERS, INC.
Phillip G. Tripp, P. .
PGT/sbs
cc: Dallas Harris
94049-2
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AUG 16 1994
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202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910/343-9604
P.O. Box 2889 Shallotte, North Carolina 28459 Telephone: [phone]

A&K Project No. 94049
DMSION OF ENVIRONMENTAL MANAGEMENT
DENSITY X
PROJECT DATA
ENGINEERED
Project Name Covil Estates Phase II, "Peppertree" and "Snug Harbor II"
Location (County, Township/Municipality, Address, State Road) New Hanover County
Near Military Cut -Off- and Market Street
Owner's Name Da---llas Harris Real Estate Construction
MaUingAddress P.O. Box 531
_ Wrightsville Beach, NC 28480
Phone Number 10 256-4475 Submittal Date August 10, 1994
Brief Description (include map and appropriate drawings) Developanent of 112 single
family residential lots
Name of Water Body Receiving Stormwater Runoff Unnamed tributary to Howe° s Creek
Classification of Water Body_ 5A if SA waters, engineered system, and distance is <0.5
miles, att,,ich report of chloride sampling results mg/l
State/Fedld Permits/Approvals Required (Check appropriate blanks)
104�'CAMA Major X Sedimentation/Erosion Control X
404 Permit DEM/DHS Sewage Disposal X
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
SA
630,940 SF
58.0 Ae.=2,15Z,480 SF
24..97%
631,620 SF
Subwatershed
Is the Project B/U Area <_ the Allowable B/U Area? Yes
% Built upon area = (built upon area / total project area) * 100
(If no, an engineered system is required.)
Built upon area limits for projects to meet density: SA waters — 25 %, Other --30 %
STORM`WATER COLLECTION SYSTEM
Describe how the runoff dill be treated open swales
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Is the built upon area at least 30 feet from mean high water of all surface waters?
provide a description
Yes ilf to, please
(Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities a& 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 the recorded deed restrictions and protective covenants for this project
shall limit the allowable built -upon area per lot to *see below 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. *"Snug Harbor II" = 4600 SF
"Peppertree" = 3510 SF
CERTIFICATION
I, Rodney Q. Harris 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 restr' ' statement above.
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Owner's 1 ature D e .
Provide authorized person or firm name and address below:
Andrew & Kuske Consulting Engineers, Inc.
202 North Fifth Avenue
Wilmington, NC 28401
I, Jeria M. Coleman , allotary Public for the State of North Carolina
County of New Hanover , do hereby certify that Rodney Q. Harris personally
appeared before me this 15th day of August 94 , and acknowledges the due execution
of the foregoing instrument. Witness my hand and ei,�L
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My commission expires 7/26/97 �U®LACE
DIVISION OF
Regional Office
Date
Date
Individual Evaluating Forms/Plans
Regional Water Quality Supervisor
cc: Applicant/WiROBradley Bennett/Central Files
SIGN -OFF

EN REviEw
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PROJECT NAME: k2mw .4,. mue, omw ILREVIEWER:
PROJECT NO.: L0 p DATE:
DRAINAGE BASIN:_) f To LbuO CXOLCLASS: 5A ALLOWABLE la[ %:�
srm AREA= 5 J3 AE ,+/_ C 2, 5 24 q00 sF
ROAD AREA=
NUMBER OF LOTS =
BUILT UPON AREA CALCULATION SNuGq(L$O�L IC = 3o.Q
Built -upon Area/Lot=[(site * density) -(road area)]/# lots P6%Vr(ee(, = Zf .0 4c
2, 52lP� q gD X .25 — 01420
DEED RESTRICTS ALLOWABLE BUILT -UPON AREA PER LOT TO SF INCLUSIVE
OF RIGHT-OF-WAY.
COAIM ENTS
INFORMATION REQUIRED PROVIDED REQUESTED
DEED RESTRICTIONS
DENSITY SUBMITTAL FORM
DENSITY CALCULATIONS
NOTARIZED SUBMITTAL AUTHORIZATION
VELOCITY CALCULATIONS
SITE PLAN WITH:
PROPERTY LINES
STREET X-SECTION
LOCATION MAP
SWALE X-SECTION

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J. A. Kuske, P.E.
CONSULTING ENGINEERS, INC. AUG .� 1gg� J. Phillip Norris, P.E.
--------------- ---- V"ffl,..
August 10, 1994
NC Dept. of Environment, Health and
Natural Resources/Div. of Environmental Mgmt.
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Cavil Estates Subdivision
Stormwater Density Submittal
A&K Project No. 94049
Dear Ms. Lewis:
Enclosed please find 4 site plans, a submittal form for
projects using density limits for stormwater control, deed
restrictions, and calculations for the subject project.
Please note one site plan has been highlighted to
distinguish Snug Harbor II and Peppertree. Please review
this information for approval under the density limit
exemption. The Owner is aware that he cannot modify the
property indicated on the plans as "future development"
prior to submitting a separate stormwater management plan.
Please let us know if you have any questions or require
additional information.
Thank you for your assistance on this project.
Sincerely,
ANDREW & KUSKE
CC S T1 41NEERS, INC.
Phillip G. .E.
PGT/sbs
cc: Dallas Harris
94049
TER
AUG I 1 1994
DEM
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202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: [phone] Facsimile: 910/343-9604
P.O. Box 2889 Shallotte, North Carolina 28459 Telephone: [phone]