SW7080930_HISTORICAL FILE_20210618

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE,
YYYYM M D D

ROY COOPER
Governor
JOHN NICHOLSON
Interim Secretary
BRIAN WRENN
Director
NORTH CAROLINA
Environmental Quality
June 18, 2021
Pledger Palace Child Development and Educational Center, Inc.
Attention: Patricia Pledger, President
P.O. Box 299
Jarvisburg, NC 27947
Subject: Stormwater Permit Renewal
Stormwater Management Permit SW7080930
Pledger Day Care Center
Currituck County
Dear Ms. Pledger:
wu /ZO
A Division of Energy, Mineral, and Land Resources file review has determined that
Stormwater Permit SV 7080930 for a stormwater treatment system consisting of an
infiltration basin to serve a proposed Pledger Day Care Center to be located at 103
Helen Ct., Point Harbor, NC expires on December 30, 2021. This is a reminder that
permit renewal applications are due 180 days prior to expiration. We do not have a
record of receiving a renewal application.
If you wish to maintain this permit, please submit a completed permit renewal
application along with a $505.00 fee for permit renewal. Permit application forms for
renewal can be found on our website at: https://deq.nc.gov/about/divisions/energy-
mineral-and-land-resources/stormwater/stormwater-program/post-construction-2. North
Carolina General Statutes and the Coastal Stormwater rules require that this property
be covered under a stormwater permit if the facility is built. If you do not plan to
construct this facility, please advise.
If you have questions, please feel free to contact me at [phone]. 1 will be glad to
discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the
application forms. You can request a copy by e-mailing me at
roqer.thorpe n( ncdenr.goy.
Sincerely,
Roger K. Thorpe J
Environmental Engineer
— North Carolina Department of Environmental Quality ' Division of Energy, Mineral and Land Resources
J1 Washington Regional Office 1 943 Washington Square Nall I Washington, North Carolina 27889

North Carolina Secretary of State
http: //www. secretary. state.nc. us/corporations/Corp. aspx? Pitemld=5319499
CORPORATIONS
North Carolina
Elaine F. Marshall DEPARTMENT OFTHE
Secretary SECRETARY OF STATE
PO Box 29622 Raleigh, NC 27626-0622 [phone]
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Date: 11/20/2008
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Corporation Names
Name Name Type
NC Pledger Legal
Palace Child
Development &
Educational
Center, Inc.
Business Corporation Information
SOSID:
Status:
Date Formed:
Citizenship:
State of Inc.:
Duration:
Registered Agent
Agent Name:
Registered
Office Address:
Registered
Mailing
Address:
Principal Office
Address:
Principal
Mailing
0585269
Current -Active
3/22/2001
Domestic
NC
Perpetual
Pledger, Patricia M.
Highway 158
Jarvisburg NC 27947
PO Box 299
Jarvisburg NC 27947
Highway 158
Jarvisburg NC 27947
PO Box 299
Jarvisburg NC 27947
I oft 11/20/2008 4:04 PM

Quible
Quible & Associates, P.C.
ENGINEERING • ENVIRONMENTAL SCIENCES • PLANNING • SURVEYING
SINCE 1959
September 19, 2008
Mr. Al Hodge
NC DENR
Division of Water Quality
943 Washington Square Mall
Washington. North Carolina 27889
Re: Stormwater Management Plan : High Density Permit Application
Pledger Day Care Center
Point Harbor, North Carolina
Mr. Hodge,
P O. Dower 87C
Kitty Hawk NO 27949
Phone [phone]
Fax [phone]
PRINCIPALS
Sean C Boyle, P.E.
Joseph S. Lassiter. C.E.P.
Eduardo J Valdmieso. P E
ASSOCIATES
Joseph J Anbut P E
KalherheC Marchello. P L S
IKVI!�EVED
SEP 2 3 2008
t) tl 7 n--VVA RQ
On behalf of Pledger Palace Child Development and Education Center, Inc, Quible and Associates, P.C.
hereby submits for review and approval a High Density Stormwater Management Permit Application
package for the above referenced project in Point Harbor, North Carolina.
The project falls within the high density classification. The enclosed narrative will explain in detail the
Stormwater management of this site.
The following items are included and shall be considered part of this submittal package.
I. Two (2) copies of the Stormwater Management Permit Application Form with one (1) copy
of the Infiltration Basin Supplement and Operation & Maintenance Agreement.
2. Stormwater Management Plan Narrative & Calculations
3. Two (2) copies of the site plan set.
4. Review fee check in the amount of $505.00, made payable to the NC DENR.
If you have any questions, or require any additional information, please do not hesitate to contact me at
[phone].
Sincerely,
Quible & Associates, P.C.
Derek A. Dail, P.E.
enc: as stated

MEMORANDUM
August 20, 2008
Subject: Pledger Day Care Center
Stormwater Infiltration Basin Borings
To: Derek Dail, P.E.
From: Warren D. Eadus, P.G., Quible & Associates, P.C. I b(wl_0$
On August 14, 2008 1 advanced two borings in the proposed t �/ " .
g p p s ormwater infiltration basin at the above
referenced property in the locations indicated on the enclosed site sketch you provided. A copy of the
relevant portion of the USGS Topographic Quadrangle -Point Harbor, with the site identified, has been
enclosed.
According to the USDA Soil Conservation Service Soil Survey of Currituck County, the soils on site are
mapped as Conetoe Loamy Sands (CnA). The soil borings advanced on site indicate that the soils are
likely Conetoe type soils. Conetoe are classified as loamy sands on ridges that formed in fluvial or
marine settings. In general Conetoe are rapidly drained with permeability rates well in excess of 2.0
inches per hour. A copy of the relevant portion of the USDA Soils Map for Dare County, with the site
identified, has been enclosed.
In general, the soils at the site (to depths of three and a half feet) are moderately well sorted fine to
medium quartz sands with little to no organic material or mineral soils. In each of the borings saturated
sediment was encountered at depths greater than seven feet below ground surface (bgs) with no free
water at depths to ten feet. The seasonal high water table (based on oxidation and soil staining) appears
to occur at approximately six feet bgs. However, some minor iron oxidation was observed at depths of
approximately four feet bgs. This oxidation observed at four feet bgs may be the result of a slight change
in the grain size (subtle transition to loamy, silty sands). The relative change in grain size at
approximately 48 inches bgs may effectively reduce the infiltration rates to create some minor oxidation
or reducing conditions.
Please note, all field indicators in the borings advanced indicate that the seasonal high water table is
likely greater than five feet bgs Copies of the boring logs for each of the borings advanced are enclosed
with this memorandum. However, the USDA Drought Management Advisory Council Drought
Monitoring Report for August 12, 2008 lists Currituck County as experiencing moderate drought
conditions. Therefore, normal groundwater conditions do not exist at the site. Drought information can
be viewed by navigating to http://www.nedroucht.or2/ on the world wide web.
SEP 2 3, 2008
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Stormwater Management Plan Narrative
Pledger Day Care Center, Point Harbor, Currituck County, NC
September 8, 2008
General
• 4. ! f.f
03M9
The following narrative will detail the proposed stormwater management system to serve the proposed
Pledger Day Care Center. The property in reference is 1.56 acre parcel located at 103 Helen Ct. in Point
Harbor, Currituck County.
The Pledger Day Care Center project proposes to construct a single 12,200 sq.ft. day care facility with
associated parking and utility infrastructure. The project proposes a total built upon area of 30,468 sq.ft.,
resulting in a total lot coverage of 44.80%.
The Pledger Day Care Center Project will require a NC DENR high density stormwater permit.
Stormwater will be collected through a discrete collection system and conveyed to a dry infiltration basin
located on -site. The dry infiltration basin is designed to store stormwater runoff generated by the 4.55
inch rain fall event. The following narrative sections summarize the parameters of this design which will
illustrate an effective stormwater management system in full compliance with all state regulations.
Summary of Existing Conditions
The existing site is comprised of a 1.56 acre parcel wooded parcel located at 103 Helen Ct. in Point
Harbor, Currituck County. The parcel in reference is owned by Pledger Palace Child Development and
Educational Center, Inc. There is currently not an existing NC DENR stormwater permit for the
referenced parcel.
Summary of Proposed Conditions
Pledger Palace Child Development and Educational Center, Inc. proposes to construct a single 12,200
sq.ft. day care facility with associated parking and utility infrastructure. The project proposes a total
built upon area of 30,468 sq.ft., resulting in a total lot coverage of 44.80%.
The proposed Pledger Day Care Center will manage stormwater primarily via a dry infiltration basin.
Stormwater will be collected by a discrete collection system consisting of roof drains, drop inlets and
conveyance culverts. The discrete collection system will convey stormwater to the dry infiltration basin
located near the western corner of the property. The project will require a new high density stormwater
permit since there in not an existing stormwater permit for the existing parcel.
The receiving stream for the project is the Currituck Sound and has a steam classification of SC. A NC
DENR high density stormwater permit will require the site to manage the 1.0 inch rainfall event on -site.
The drainage area of the proposed infiltration basin is 37,613 sq.ft. (77.56%) impervious. The 1.0 inch
rainfall event is calculated to generate 2,642 cf of stormwater runoff. The infiltration basin has a design
storage volume of 12,033 cf. The infiltration basin design storage volume of 12,033 cf is calculated to
effectively manage the runoff generated by the 4.55 inch rainfall event.
SEP 2 3 2008
R.� 0,1,i-WA IRD

Stormwater Collection, Treatment, Storage and Disposal
Collection
The Pledger Day Care Center will be conveyed to a dry infiltration basin via a discrete collection system
consisting of roof drains, drop inlets and conveyance culverts. The dry infiltration basin is proposed to
be located near the western corner of the property.
Treatment
Runoff from paved areas will sheet flow to drop inlets and be directed to the dry infiltration basin via a
discrete culvert system. Large particulates and debris will accumulate at the drop inlet grates and at the
storm sewer rip -rap outlet. Runoff from the roof of the day care facility will be directed to infiltration
basin via roof drains. The roof drains will either connect directly to the infiltration basin or will be piped
to the drop inlet junction boxes and conveyed to the infiltration basin via the culvert system.
The infiltration basin bottoms will be grassed according to the general seeding specifications and
maintained according to the operation and maintenance plan. The runoff will undergo filtration of fine
particulates and pollutants by the vegetation within not only the basin bottoms but also the basin side
walls which will also be seeded according to the general seeding specifications. The filtration by the
vegetation is considered the preliminary treatment method of the infiltration basins.
Filtration within the soil voids beneath the infiltration trench is considered to the primary treatment of the
infiltration trench. When the water passes through the void spaces between the particles of soil material
particulates and pollutants that have a particle or grain size larger than the void size will be filtered out.
In addition some pollutants will adsorb to the surface of the soil particles. The benefit of this adsorption
will prevent the pollutants from reaching the water table and in some nutrient and microbe rich areas
existing within the subsurface, the pollutants will be consumed as food and undergo a natural
biodegradation.
Storage
The drainage area of the proposed infiltration basin is 37,613 sq.ft. (77.56%) impervious. The 1.0 inch
rainfall event is calculated to generate 2,642 cf of stormwater runoff. The infiltration basin has a design
storage volume of 12,033 cf. The infiltration basin design storage volume of 12,033 cf is calculated to
effectively manage the runoff generated by the 4.55 inch rainfall event. The design stormwater storage
volume in the infiltration basin is in significant excess of the NC DENR required 1.0 inch rainfall event
because Currituck County requires that the stormwater runoff generated by the 10yr 2hr rainfall event be
managed on -site for all new commercial developments. Additional unaccounted storage is available in
the stormwater collection culverts and within the subsurface voids in the 2.0 feet of separation between
the infiltration basin bottom and the season high water table (S.H.W.T.).
Disposal
The primary method of disposal of stormwater will by infiltration. Stormwater will be collected by a
discrete collection system and conveyed to the dry infiltration basin located near the western corner of
the parcel. The dry infiltration basin is designed to detain the 4.55 inch design storm.
The infiltration basin has a calculated draw down time of 0.9 days utilizing a 2.0 inch per hour
infiltration rate.

Soils
According to the USDA Soil Conservation Service Soil Survey of Currituck County, the soils on site are
mapped as Conetoe Loamy Sands (CnA).
Quible & Associates performed on -site soil borings to verify soil type and determine the elevation of the
season high water table (S.W.H.T.) in the location of the proposed infiltration basin.
Information collected on site indicates that the soils found throughout the proposed infiltration basin area
are likely Conetoe type soils and generally correlate with the description mapped and discussed in the
USDA Soil Conservation Service Soil Survey of Currituck County. The Conetoe soils are generally
rapidly drained with permeability rates well in excess of the 2.0 inches per hour.
The S.H.W.T. was determined to be approximately 6.0 feet below the existing surface of the proposed
infiltration basin. As shown on the site plan the 11.0 foot contour bisects the infiltration basin. Using
the topographical survey and the soil borings, the S.W.H.T. was determined to be at 5.0 feet in elevation.
A copy of the soil borings report from the proposed infiltration basin area has been included with this
narrative.
Calculations
A set of sample calculations can be found within appendix portion of this narrative.
Conclusions
The Stormwater management system for the proposed Pledger Day Care Center will handle stormwater
runoff in significant excess of the runoff that would be generated by all surfaces within the drainage are
during the 1.0 inch rain event.

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ENGINEERING • ENVIRONMENTAL SCIENCES • PLANNING • SURVEYING
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