SW3140404_CURRENT PERMIT_20140429

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

DEMLR USE ONLY
Date Received
Fee Paid
Permit Number
_ z _ zo
So
SI,J3i204OLr
es: ❑ Coa
Applicable Rulstal SW - 1995 ❑ Coastal SW - 2008 ❑ Ph 11- Post Construction
(select all that apply) ❑ Non -Coastal SW- HQW /ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
01V,yi4d
Department of Environment and Natural Resources
Division of Energy, Mineral and Land Resources
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
1. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
2. Location of Project (street address):
240 N. Salisbury Ave
City:Granite Quarry County:Rowan Zip:28072
3. Directions to project (from nearest major intersection):
At the interchange of 1-85 and US Highway 52 head east on US Highway 52 towards Granite Quarry
Project is located at the intersection of Church St. and N. Salisbury Ave
4. Latitude:35° 36' 57" N Longitude:80° 26' 51" W of the main entrance to the project.
II. PERMIT INFORMATION:
1. a. Specify whether project is (check one): ®New ❑Modification ❑ Renewal w/ Modificationt
tRenewals with modifications also requires SWU-102 - Renewal Application Form
b.If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) , and the status of
construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification
2. Specify the type of project (check one):
❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other
3. If this application is being submitted as the result of a previously returned application or a letter from
DEMLR requesting a state stonnwater management permit application, list the stormwater project number,
if assigned, and the previous name of the project, if different than currently
proposed,
4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be
obtained by contacting the Customer Service Center at 1-877-623-6748):
❑CAMA Major
❑NPDES Industrial Stormwater
®Sedimentation/Erosion Control: 1.1 ac of Disturbed Area
❑404/401 Permit: Proposed Impacts
b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number,
issue date and the type of each permit:
5. Is the project located within 5 miles of a public airport? ®No ❑Yes
If yes, see S.L. 2012-200, Part VI: h_pt :Hportal ncdenr.org/web/Ir/rules-and-regulations
Form SWU-101 Version Oct. 31, 2013 Page I of 6

III. CONTACT INFORMATION
1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc. who owns the project):
Applicant/Organization:FD08-Granite Quarry. LLC c/o Aston Properties, Inc.
Signing Official & Title:Steven T Townley, Senior Vice President Aston Properties. Inc.
b.Contact information for person listed in item la above:
Street Address:610 E. Morehead St., Suite 100
City:Charlotte State:NC Zip:28270
Mailing Address (if applicable):same as above
Phone: (704 ) 366-7337 Fax: (704 ) 365-3125
Email:
c. Please check the appropriate box. The applicant listed above is:
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below.)
2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on):
Property Owner/Organization:FD08- Granite Quarry. LLC c/o Aston Properties, Inc. (Future Owner)
Signing Official & Title:Steven I. Townley, Senior Vice President Aston Properties. Inc.
b.Contact information for person Listed in item 2a above:
Street Address:610 E. Morehead St., Suite 100
City:Charlotte State:NC Zip:28202
Mailing Address (if applicable):Same as above
City: State:
Phone: ( ) Fax: ( )
Email:
3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project:
Other Contact Person /Organization: Bryan E Smith/ Aston Properties Inc.
Signing Official &
b. Contact information for person listed in item 3a above:
Mailing Address:610 E. Morehead St., Ste 100
City:Charlotte State:NC Zip:28202
Phone: (704 ) 319-4921
Email:[e-mail]
Fax: (704 ) 365-3215
4. Local jurisdiction for building permits: Rowan County
Point of Contact:Cathy Shoaf Phone #: (704 ) 296-8610
Form SWU-101 Version Oct. 31, 2013 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
The stormwater is pied to a open sand filter device
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development Plan or PUDApproval Date:
❑ Valid Building Permit Issued Date:
❑ Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
❑ Coastal SW — 1995 ❑ Ph II — Post Construction
3. Stormwater runoff from this project drains to the Yadkin - Pee Dee River basin.
4. Total Property Area: 1.07 acres
5. Total Coastal Wetlands Area: acres
6. Total Surface Water Area: acres
7. Total Property Area (4) — Total Coastal Wetlands Area (5) — Total Surface Water Area (6) = Total Project Area':
1.07 acres
Total project area shall be calculated to exclude the follo:oinR the normal pool of imppounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may be
included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 65.2 %
9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered
stormwater BMP. For Iota density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.
Basin Information
Drainage Area 1
Drainage Area _
Drainage Area _
Drainage Area _
Receiving Stream Name
UT to Crane
Creek
Stream Class
C
Stream Index Number *
12-115-(2)
Total Drainage Area (sf)
38,768
On -site Drainage Area (sf)
38,768
Off -site Drainage Area (sf)
Proposed Impervious Area** (sf)
30,044
% Impervious Area** (total)
77.5
Impervious— Surface Area
Drainage Area _
Drainage Area _
Drainage Area _
Drainage Area _
On -site Buildings/Lots (so
8,857
On -site Streets (so ,
On -site Parking (sf)
19,402
On -site Sidewalks (sf)
1,785
Other on -site (sf)
Future (so
Off -site (sf)
Existing BUA*** (sf)
Total (so:
30,044
Stream Class and Index Number can be determined at: http://Portal.ncdenr.org/`Zveb/­`ygIps/csu/Classifications
** Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version Oct. 31. 2013 Page 3 of 6

*** Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that is
to be removed and which will be replaced by new BUA.
11. How was the off -site impervious area listed above determined? Provide documentation.
Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15A NCAC 02B .0600.
V. SUPPLEMENT AND O&M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms
must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded
from httl2: / // /portal.ncdenr.org /web /wq/ws/ su /bmp-manual.
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and
Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application
instruction sheet and BMP checklists are available from
htt12://12ortal.ncdenr.org/web/wq/ws/su/statesw/forms does. The complete application package should be
submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the
interactive online map at http://portal.ncdenr.org/web/wq/ws/su/mals.)
Please indicate that the following required information have been provided by initialing in the space provided
for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions
for each submitted application package from htto://portal ncdenr.org/web/wq/ws/so/statesw/forms does.
1. Original and one copy of the Stormwater Management Permit Application Form. 6 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form. (if required as per Part VII below)
3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M R _
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to lxl�
htto://www.envhelp.orgLpages/onestol2exl2ress.html for information on the Express program
and the associated fees. Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting.)
5. A detailed narrative (one to two pages) describing the stormwater treatment/management for
the project. This is required in addition to the brief summary provided in the Project
Information, item 1.
6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the
receiving stream drains to class SA waters within 1h mile of the site boundary, include the'h
mile radius on the map.
7. Sealed, signed and dated calculations (one copy).
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including:
a. Development/Project name.
b. Engineer and firm.
c. Location map with named streets and NCSR numbers.
d. Legend.
e. North arrow.
f. Scale.
g. Revision number and dates.
h. Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines.
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters.
i. Dimensioned property/project boundary with bearings & distances.
j. Site Layout with all BUA identified and dimensioned.
k. Existing contours, proposed contours, spot elevations, finished floor elevations.
1. Details of roads, drainage features, collection systems, and stormwater control measures.
in. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a
qualified person. Provide documentation of qualifications and identify the person who
made the determination on the plans.
Form SWU-101 Version Oct. 31. 2013 Page 4 of 6

n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations.
o. Drainage areas delineated (included in the main set of plans, not as a separate document).
p. Vegetated buffers (where required).
9. Copy of any applicable soils report with the associated SHWT elevations (Please identify
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the
project area clearly delineated. For projects with infiltration BMPs, the report should also
include the soil type, expected infiltration rate, and the method of determining the infiltration rate.
(Infiltration Devices submitted to WiRO: Schedule a site visit for DEMLR to verify the SHWT prior
to submittal, [phone].) AL„10 ✓/ P&- AASE (1p J14<r
10. A copy of the most current property deed. Deed book: 952 Page No: 838
11. For corporations and limited liability corporations (LLC): Provide documentation from the NC
Secretary of State or other official documentation, which supports the titles and positions held
by the persons listed in Contact Information, item In, 2a, and/or 3a per 15A NCAC 21-1.1003(e).
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned. („ c �a _f;O,G,Jtt/tp OK'C F,
ham•//wwwsecretarystatencus/Corporations/CSearchast)x 7ZCGF14E,p
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed
BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided
as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and
protective covenants forms can be downloaded from httl27//Portal.ncdenr.org/web/"Ir/state-stormwater-
forms docs. Download the latest versions for each submittal.
In the instances where the applicant is different than the property owner, it is the responsibility of the property
owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring
that the deed restrictions are recorded.
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the NC DEMLR, and that they will be recorded prior to the sale of any lot.
VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a
consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information).
Consulting Engineer:Bwan E. Smith
Consulting Firm:
Mailing Address:610 E. Morehead St.. Suite 100
City:Charlotte State:NC Zip:28202
Phone: (704 ) 319-4921 Fax: [phone]
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, item 2a) certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item la) with (print or type name of organization listed in
Contact Information, item la) to develop the project as currently proposed. A copy of
the lease agreement or pending property sales contract has been provided with the submittal, which indicates the
party responsible for the operation and maintenance of the stormwater system.
Form SWU-101 Version Oct. 31, 2013 Page of 6

As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DEMLR Stormwater permit reverts back
to me, the property owner. As the property owner, it is my responsibility to notify DEMLR immediately and
submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater
treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility
without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement
action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6.
Date:
a Notary Public for the State of County of
do hereby certify that
personally appeared
before me this _ day of . and acknowledge the due execution of the application for a
stormwater permit. Witness my hand and official seal,
SEAL
My commission
X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item 1a) Steven 1. Townley
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed project complies with the requirements of the
applicable storm w t u e 15 CAC 21-I .1000 and any other applicable state stormwater requirements.
Signature: Date: y/2S
I, l J 0/� a Notary Public for � t//houe State �o))f L � County of
L (C l do hereby certify that �iV� . Jt/jzt-i personally appeared
before me this 2Aay of 2Ld and acknowledge the due execution of the application for a
stormwater permit. Witness my hand and official seal,
•�N LEV,q�
NOTARY
PUBLIC C; =
SEAL
My commission expires / I �J/L(/ d , a o /
Form SWU-101 Version Oct. 31, 2013 Page 6 of 6

State Stormwater Permit
Permit No. SW3140404
Family Dollar Store, Granite Quarry
Stormwater Permit No. SW3140404
Rowan County
Designer's Certification
DIVISION Jr WINU RESOURCES
'AND QUALITY SECTION
FEB 2 6 2015
DErhnnmavr ur --mUNMENI
4ND wrrunro. r•eSOURGES
1,3a`jA^' r-- •'Sk^^ ITas a duly registered ' in the State of
North Carolina, having been authorized to observe ([� eriodically /❑ weekly /
❑full time) the construction of the project,
FRMI(--/ oDi,CA9 570r5 - 6'2A�AJrr- QUi4/Lk
(Project Name)
for ni r.IAQ 211 e- (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.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
�t�ih�ar f�ciEgA'"1 IS SLre,t-iTC.�' 1.-A�,GE(L iNA•J -(NE APP2aJE0
Signature 0 �1
Registration Number 2200q
Date z l / �, l / l
'10' CAR to
Q SSio .�y ;
L +.'9
a SEAL
022009 =
FNciNE� '1. ,
eRrAN E.SM� `
Page 5 of 6

PIVIS/Oiv OF State Stormwater Permit
LAND AQTy SO/OURCE0Permit No. SW3140404
,rNNnuFe262015.
'wON^ rt-L c,rV,nUNME
Certification Requirements: �Ou;; EgN,
•/ 1. The drainage area to the system contains approximately the permitted acreage.
✓ 2. The drainage area to the system contains no more than the permitted amount
/ of built -upon area.
`� 3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
76. The outlet structure is located per the approved plans.
Z7. Under drains are located per the approved plans.
8.
AU slopes are grassed with permanent vegetation, per the vegetation plan.
1__�9. Vegetated slopes are no steeper than 3:1.
�0. The inlets are located per the approved plans and do not cause short-circuiting
of the system.
11. The permitted amounts of surface area and volume have been provided.
�12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided. _-�
14. All required parts of the system are provided, such as a sediment chambers,
sand chambers, under drains, and outlets.
15. The required system dimensions are provided per the approved plans.
Please submit this Designer's Certification to:
Mooresville Regional Office
Zahid Khan, Regional Engineer
Land Quality Section
Div of Energy, Mineral and Land Resources
NCDENR
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Page 6 of 6

COPY- f-/("c
Permit Number: 56V 31'f'0 "t"0
Oa be provided by DWQ)
Drainage Area Number:.
Sand Filter Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a
nnlUAl n...
known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or
replaced immediately. These deficiencies can affect the integrity of st01 ructures; safety of the public, and
the removal efficiency of the BMP.
OCT' 67p14
Important maintenance procedures: ,,,
— The drainage area will be carefully managed to reduceithe sediment load to the sand filter.
unfi
— The sedimentation chamber or forebay will be cleaned out whenev_er�sediment depth exceeds
six inches. a-c-i9
— Once a year, sand media will be skimmed.
— The sand filter media will be replaced whenever it fails to function properly after maintenance.
The sand filter will be inspected quarterly and within 24 hours after every storm event greater than
1.0, inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in
a known set location and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall be repaired
immediately.
uBMR elementa t
'Potential problem r . ' a''
y l;,will reurediate the problem x1 }y
Entire BMP
Trash/debris is present.
Remove the trash/debris.
Adjacent pavement (if
Sediment is present on the
Sweep or vacuum the sediment as soon as
applicable)
pavement surface.
possible.
Perimeter of sand filter
Areas of bare soil and/or erosive
Regrade the soil if necessary to remove the
gullies have formed.
gully, and then plant a ground cover and
water until it is established. Provide lime
and a one-time fertilizer application.
Vegetation is too short or too long.
Maintain vegetation at an appropriate
height.
Flow diversion structure
The structure is clogged.
Unclog the conveyance and dispose of any
sediment offsite.
The structure is damaged.
Make any necessary repairs or replace if
damage is too large for repair.
Forebay or pretreatment area
Sediment has accumulated to a
Search for the source of the sediment and
depth of greater than six inches.
remedy the problem if possible. Remove
the sediment and stabilize or dispose of it
in a location where it will not cause
impacts to streams or the BMP.
Erosion has occurred.
Provide additional erosion protection such
as reinforced turf matting or riprap if
needed to prevent future erosion
problems.
Weeds are present.
Remove the weeds, preferably by hand. If
a pesticide is used, wipe it on the plants
rather than spraying.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 1 of 3

BMP,element <'ii%F A w ,!!
+Pot'e""iitial "r"olilein. MYi -•. w ':
"H" " ftivill i;emediate the"° iolilem °° " '.
Filter bed and underdrain
Water is ponding on the surface for
Check to see if the collector system is
collection system
more than 24 hours after a storm.
clogged and flush if necessary. If water
still ponds, remove the top few inches of
filter bed media and replace. if water still
ponds, then consult an expert.
Outlet device
Clogging has occurred.
Clean out the outlet device. Dispose of the
sediment offsite.
The outlet device is damaged
Repair or replace the outlet device.
Receiving water
Erosion or other signs of damage
Contact the NC Division of Water Quality
have occurred at the outlet.
401 Oversight Unit at 919-733-1786.
Form SW401-Sand Filter O&M-Rev.4 2009Sept17 Page 2 of 3

Permit Number: S W 3 / A-O If O �f
Ito be provided by DWQ)
1 acknowledge and agree by my signature below that I am responsible for the performance of the
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior
to any changes to the system or responsible party.
Project name:Family Dollar
BMP drainage area number: I
Print name:Steven J. Townley
Title:Senior Vice President, Aston Properties, Inc.
Address:610 E. Morehead St., Suite 100 Charlotte, NC 28202
Note: The legally responsible party should not be a homeowners association unless more than 50`yo of the lots have been
sold and a resident of the subdivision has been named the president.
I, �� // / /�-�✓CLI� — a Notary Public for the State of
('M(a County/ of ' / � � 11 ' do hereby certify that
,) L fitti /aT.(vtt 1/ u1, persondlly appeared before me this tom, ``-' day of
and acknowledge the due execution of the forgoing sand filter
maintenance requirements. Witness my hand and official seal,�n ,✓/�/vim �_
SEAL
My commission expires
Form SW401-Sand Filter O&M-Rev.4 2009Scptl7 Page 3 of 3

NCDENR Stormwater BMP Manual Chapter Revised 09-20-09
11. Sand Filter
Description
A sand filter is a surface or subsurface device that percolates stormwater down through a sand
media where pollutants are filtered out. Sand filter effluent is either infiltrated or discharged.
Regulatory Credits
Feasibility
Considerations
Pollutant Reinoval
-
85% Total Suspended Solids
Med
Land Requirement
35% Total Nitrogen
High
Cost of Construction
45% Total Phosphorus
High
Maintenance Burden
Water Quantihj
Small
Treatable Basin Size
Possible Peak Attenuation
Med
Possible Site Constraints
Possible Volume Capture
Med
Community Acceptance
Advantages
Disadvantages
— Highly effective at removing
— If anoxic conditions develop in the sand filter due to
TSS, BOD and fecal coliform.
poor drainage, phosphorus levels can increase as
— Require less space than other
water passes through the sand filter.
BMPs and can be placed
— May not be effective in controlling peak discharges.
underground where space is
— Large sand filters without vegetation may not be
limited,
attractive in residential areas.
— Perimeter sand filters useful for
— Expensive.
small sites with flat terrain or
high water table.
Sand Filter
July 2007

NCDENR Stormwater BMP Manual [Z-0 UM -Ad Chapter Revised 09-20-09 M S=
DiVI5i0iJ OF
Major Design Elements 14ND "')A 7Y g Sr1r)RCF.S
Required by the`NC Admiiiistr$iive`Rules tif'the Environmental Management"
Commission: Other.specifications may he necessary to meet the stated pollutant
removals equirements.
Sizing shall take into account all runoff at ultimate build -out including off -site
1
drainage.
2
Vegetated side slopes shall be no steeper than 3:1.
3
BMP shall be located in a recorded drainage easement with a recorded access
easement to a public ROW.
Seasonally high groundwater table must be at least 2 feet below the bottom of the
4
filter for open -bottom designs.
A diversion or bypass structure is an acceptable means for accommodating storm
5
flows in excess of the design flow for sand filters.
A vegetated filter strip is not required for overflows, bypass flows, or discharges
from a sand filter (except for within 1/2 mile of and draining to SA waters or
6
unnamed tributaries of to SA waters). For SA waters in Phase 11 areas, criteria in
S.L. 2006-246 Section 9(h) must still be met.
The design shall be located a minimum of 30 feet from surface waters, and 50 feet
7
from Class SA waters.
8
The design shall be located a minimum of 100 feet from water supply wells,
unless it is a closed des in with underdrains installed.
Required by DQWpolicy: 'These are based on available research, and represent _ i
what DWQ considers necessary to aclireve'the stated removal efficiencies.,
Seasonally high groundwater table must be at least 1 foot below the bottom of
9
the filter for closed filter designs in order to prevent draining the water table and
floatation. Exceptions will be made if these concerns are mitigated;
10
Maximum contributing drainage basin is 5 acres.
Minimum width (parallel to flow) of a sedimentation chamber or forebay shall be
11
1.5 feet.
12
Sand filter must completely drain within 40 hours.
Sand media shall be as specified below and shall be a minimum of 18" deep
13
minimum of 12" over the drainage pipes).
All sand filter designs must provide at sufficient access to both chambers to
14
facilitate maintenance activities.
Sand Filter 11-2 July 2007
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Permit
(to be provided by DWO)
NCD{ENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
SAND FILTER SUPPLEMENT
This form must be filled out on line, printed and submitted with all of the required information.
Make sure to also fill out and submit the Required Items Checklist (Section III) and the I&M Agreement (Section IV)
I. PROJECT,INFORMATION
Project name Family Dollar
Contact name Bryan Smith
Phone number [phone]
Date April 16, 2014
Drainage area number
II: DESIGN'INFORMATION,. .6:,;tm ,- ,.,yc4$ 4�.�
Site Characteristics
Drainage area (AD) 38,768.00 ft2 OK )/ `ems S le4 A—W y A C.A�.e
Impervious area 30,044.00 ft'
%, Impervious (I;J 77.5% % /
Design rainfall depth (Re) 1.00 in r/
Peak Flow Calculations
1-yr, 24-hr runoff depth 2.73 in
1-yr, 24-hr intensity irdhr
Pre -development 1-yr, 24-hr runoff 1.38 ft3/sec \
Post -development 1-yr, 24-hr runoff 0.10 ft3/sec/
Pre/Post 1-yr, 24-hr peak control -1.28 ft'/sec
Storage Volume
Design volume (WOV)
2,414.90 ft'
Adjusted water quality volume (WOVAd)
1,811.18 Its
OK
Volume contained in the sedimentation basin and on top of the sand filter
1,830.00 It'
Top of sand filter/grate elevation
774.5 It amsl
Weir elevation (between chambers)
777.5 It amsl
Maximum head on the sedimentation basin and sand filter (hM.Fitler)
3.00 ft OK
Average head on the sedimentation basin and sand filter (h,)
1.50 ft OK
Runoff Coefficient (Rv)
0.75 (unitless)
Type of Sand Filter
Open sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (dsev )
Closed/pre-cast sand filter?
SHWT elevation
Bottom of the sand filter elevation
Clearance (ds wT)
If this is a closed, underground closed sand filter: The clearance between
the surface of the sand filter and the bottom of the roof of the underground
structure (dsp,,)
y YorN
743.00Ifamsl
773.00 It amsl
30.00
YorN
It amsl
ft amsl
\vttln u I rrrrii
N CARO
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EA
- 022009,
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Form SW401-Sand Filter-Rev.52009Sept17 Parts I and If. Project Design Summary, Page 1 of 2

Pemtit Number:
(robe provided by DWO)
Sedimentation Basin
Surface area of sedimentation basin (As)
Sedimentation basin/chamber depth
Sand Filter
Surface area of sand filter (AF)
Top of sand media filter bed elevation
Bottom of sand media filter bed/drain elevation
Depth of the sand media filter bed (dF)
Coefficient of permeability for the sand filter (k)
Outlet diameter
Outlet discharge/flowrate
Time to drain the sand filter (t)
Time to drain the sand filter (t)
Additional Information
Does volume in excess of the design volume bypass the sand filter?
Is an off-line flow -splitting device used?
If draining to SA waters: Does volume in excess of the design volume flow
evenly distributed through a vegetated filter?
What is the length of the vegetated filter?
Does the design use a level spreader to evenly distribute flow?
Is the BMP located at least 30ft from surface waters (50ft if SA waters)?
If not a closed bottom, is BMP located at least 100ft from water supply wells?
Are the vegetated side slopes equal to or less than 3:1
Is the BMP located in a recorded drainage easement with a recorded access
easement to a public Right of Way (ROW)?
What is the width of the sedimentation chamber/forebay (Ws1d)?
What is the depth of sand over the outlet pipe (dpipe)?
vn. miuets immmum, um may HUMru uu aiuue°uu w
159.00 fh
.............�....,...�.:...a ,..i.._., a .......... a... c.........,
3.00 ft
208.00 f? vn. menu uuuuuum, um may nueu w uu muuasuu w
774.50 ft amsl
77.0It amsl
1.50 It ✓
3.50 (ft/day) /
6.00 in
ft,/Sec
40.00 hours OK. Submit drainage calculations.
1.67 days
°u-i-le-f
Y YorN OK
N YorN Insufficient flow splitter.
YorN npE.fr✓�s i�
ft
YorN
Y YorN
OK
YorN
Y YorN
OK
Y YorN
OK
8.00 ft
OK
1.30 ft
OK
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Form SW401-Sand Filter-Rev.5 2009Sep117 Parts I and If. Project Design Summary, Page 2 of 2

Permit No.
(to be provided by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal
package will result in a request for additional information. This will delay final review and approval of the project. Initial
in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the
agent may initial below. If a requirement has not been met, attach justification.
Initials Page/ Plan
Sheet No.
D CA QS� 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
C 2,
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3�-
wf
Maintenance access,
Flow splitting device,
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Boundaries of drainage easement.
2. Plan details (1"= 30' or larger) for the sand filter showing:
- System dimensions (length, width, and depth) for both the sedimentation chamber and the filter
chamber,
Maintenance access,
Flow splitting device,
Vegetative filter strip dimensions and slope (if SA waters),
Proposed drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off -site drainage (if applicable), and
Boundaries of drainage easement.
J_S 3. Section view of the sand filter (1" = 20' or larger) showing:
- Depth(s) of the sedimentation chamber and sand filter chamber,
- Depth of sand filter media,
- Connection between the sedimentation chamber and the sand filter chamber and weir elevation,
- SHWT elevation,
- Outlet pipe, and
- Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if
applicable).
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information.
5. Supporting calculations (including drainage calculations)
6. Signed and notarized operation and maintenance (0&M) agreement
7. A copy of the deed restrictions (if required).
Form SW401-Sand Filter-Rev.5 2009Sept17 Part III, Page 1 of 1