20130014 Ver 1_Stormwater Info_20121231

Summey Engineering Associates, PLLC
Engineering - Land Planning - Consulting
P.O. Box 968
Asheboro, NC 27204
Phone: [phone] - Fax: [phone]
December 21, 2012
Re:
Ms. Annette Lucas, PE
North Carolina Division of Water Quality
Wetlands & Stormwater Unit
512 North Salisbury Street
Raleigh, North Carolina 27604
Dear Ms. Lucas:
20 11300 00 1 4
Ace /Avant
Stormwater Plans
Hwy 311
Randolph County, NC
SEA Job No. E -2137
Please find enclosed wo (2) completed Stormwater permit applications including the
Supplement forms for the three (3) bio -cells and one (1) wet detention ponds on this
project.
Should you have any questions or comments or need additional information, please do
not hesitate to call or email me.
HMSJ/hmsj
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Truly Yours,

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Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
- Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
- Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
- Heavy equipment will NEVER be- driven over the bioretention cell.
- Special care will be taken to prevent sediment from entering the bioretention cell.
- Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month 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.
BMP element:
Potential problems:
How I will remediate the problem:
The entire BMP
Trash /debris is present
Remove the trash /debris.
The perimeter of the
bioretention cell
Areas of bare soil and /or
erosive gullies have formed.
Regrade the soil if necessary to
remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one -time fertilizer application.
The inlet device: pipe,
stone verge or swale
The pipe is clogged (if
applicable).
Unclog the pipe. Dispose of the
sediment off -site.
Replace the pipe.
The pipe is cracked or
otherwise damaged (if
applicable).
Erosion is occurring in the
swale (if applicable).
Regrade the swale if necessary to
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Stone verge is clogged or
covered in sediment (if
Remove sediment and clogged
stone and replace with clean stone.
applicable).
Form SW401- Bioretention O &M -Rev.3
Page 1 of 4

BMP element:
Potential problems.
How I will remediate the problem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and /or
flow to the pretreatment area.
llies have formed.
Restabilize the area after grading.
Sediment has accumulated to
Search for the source of the
a depth greater than three
sediment and remedy the problem if
inches.
possible. Remove the sediment and
restabilize the pretreatment area.
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.
The bioretention cell:
vegetation
Best professional practices
show that pruning is needed
Prune according to best professional
practices.
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying•
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Tree stakes/ wires are present
Remove tree stake/ wires (which
six months after p lantin .
can kill the tree if not removed).
The bioretention cell:
soils and mulch
Mulch is breaking down or
has floated away.
Spot mulch if there are only random
void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum depth of three inches.
Soils and /or mulch are
clogged with sediment.
Determine the extent of the clogging
- remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off -site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
ossible.
An annual soil test shows that
pH has dropped or heavy
Dolomitic lime shall be applied as
recommended per the soil test and
metals have accumulated in
toxic soils shall be removed,
the soil media.
disposed of properly and replaced
with new pl antin media.
Form SW401- Bioretention O &M -Rev.3 Page 2 of 4

BMP element:
Potential problems:
How I will remediate the problem:
The underdrain system
if applicable)
Clogging has occurred.
Wash out the underdrain system.
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or replace the drop inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
Quality 401 Oversight Unit at 919 -
outlet.
733 -1786.
Form SW401- Bioretention O &M -Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name: Ace /Avant
BMP drainage area number: 1, 2 & 3
Print name: Tracy Matson
Title: Owner
Address: _ 109 Seminole Drive, Archdale NC 27263
Phone: [phone]
Sign —�
Date: _ �— /y —/2
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
`?en nl r , a Notary Public for the State of
d%r`1 rohio-- ,County of &ndo lDA , do hereby certify that
-7tC� iiki personally appeared before me this f y
day of DQce m ber 2D / , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. itness m hand and official seal,
ERIKA PENNINGTON
NOTARY PUBLIC
Ra A*i Gem. &W&"
My Commission Expires: '7"2•20 to
SEAL
My commission expires "T Ja`aD/&
Form SW401- Bioretention I &M -Rev. 2 Page 4 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
Wet Detention Basin Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
The wet detention basin system is defined as the wet detention basin,
pretreatment including forebays and the vegetated filter if one is provided.
This system (check one):
❑ does ® does not incorporate a vegetated filter at the outlet.
This system (check one):
❑ does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
- Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
- No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
- Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
- If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be m;mrn; zed to the
maximum extent practical.
- Once a year, a dam safety expert should inspect the embankment.
After the wet detention pond is established, it should be inspected once a month 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 should be kept in a known set
location and must be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element:
Potential problem:
How I will remediate the problem:
The entire BMP
Trash debris is present.
Remove the trash debris.
The perimeter of the wet
detention basin
Areas of bare soil and /or
erosive gullies have formed.
Regrade the soil if necessary to
remove the 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. I
Maintain vegetation at a height of
approximately six inches.
Form SW401 -Wet Detention Basin O &M -Rev.4 Page 1 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potential problem:
How I will remediate the problem:
The inlet device: pipe or
swale
The pipe is clogged.
Unclog the pipe. Dispose of the
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged.
Erosion is occurring in the
Regrade the swale if necessary to
swale.
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
The forebay
Sediment has accumulated to
Search for the source of the
a depth greater than the
sediment and remedy the problem if
original design depth for
possible. Remove the sediment and
sediment storage.
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 pesticide is used, wipe it on
the plants rather than spraying.
The vegetated shelf
Best professional practices
Prune according to best professional
show that pruning is needed
practices
to maintain optimal plant
health.
Plants are dead, diseased or
Determine the source of the
dying•
problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one -time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.
Weeds are present.
Remove the weeds, preferably by
hand. If pesticide is used, wipe it on
the plants rather than spraying,
The main treatment area
Sediment has accumulated to
Search for the source of the
a depth greater than the
original design sediment
sediment and remedy the problem if
possible. Remove the sediment and
storage depth.
dispose of it in a location where it
will not cause impacts to streams or
the BMP.
Algal growth covers over
Consult a professional to remove
50% of the area.
and control the algal growth.
Cattails, phragmites or other
invasive plants cover 50% of
the basin surface.
Remove the plants by wiping them
with pesticide (do not spray).
Form SW401 -Wet Detention Basin O &M -Rev.4 Page 2 of 4

Permit Number:
(to be provided by DWQ)
Drainage Area Number:
BMP element:
Potential problem:
How I will remediate the problem:
The embankment
Shrubs have started to grow
on the embankment.
Remove shrubs immediately.
Evidence of muskrat or
Use traps to remove muskrats and
beaver activity is present.
consult a professional to remove
beavers.
A tree has started to grow on
Consult a dam safety specialist to
the embankment.
remove the tree.
An annual inspection by an
Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
The outlet device
Clogging has occurred.
Clean out the outlet device. Dispose
of the sediment off -site.
The outlet device is damaged
Repair or replace the outlet device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
Water Quality Regional Office, or
outlet.
the 401 Oversight Unit at 919 -733-
1786.
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 3 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 3 feet in the forebay, the sediment shall
be removed.
Sediment Removal
Bottom
723_5--- - - - - -- �1
FOREBAY
BASIN DIAGRAM
ill in the blanks)
( -ft Min.
Sediment
Storage
Permanent Pool Elevation 726.5
Pool
\ - - - -- Sediment Removal Elevation 723.5----- - - - - -- I Volume
Bottom Elevation
MAIN POND
Form SW401 -Wet Detention Basin O &M -Rev.4 Page 3 of 4
1 -ft
Storage

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Ace -Avant
BMP drainage area number: 4
Print name: Tracy Matson
Title: Owner/Manager
Address: 109 Seminole Dr., Archdale NC 27263
Phone: [phone]
Sianatupe=
Date: %2 - / �4 / 2
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, F—hk ?gnninctorN , a Notary Public for the State of
ke -M (t,rot,*_ , County of • (oi 11 , do hereby certify that
rCC4 Wafson personally appeared before me this
day of 71CQm hv- o?D 1 , and acknowledge the due execution of the
forgoing wet
seal, PJ
ERIKA PENNINGTON
NOTARY PUBLIC
hh►s�ttn�n �irost�:���
SEAL
My commission expires,
-1- l a --ROI
requirements. Witness my hand and official
Form SW401 -Wet Detention Basin O &M -Rev.4 Page 4 of 4

Date Received I Fee Paid I Permit Number
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non - Coastal SW- HQW /ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WO Mint Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality a rR
STORMWATER MANAGEMENT PERMIT APPLICATI
This form may be photocopied for use as an original L CU
CL
. I,,
I. GENERAL INFORMATION
1. Project Name (subdivision, facility, or establishment name - should be consistent
specifications, letters, operation and maintenance agreements, etc.):
Ace /Avant
2. Location of Project (street address):
Near 5093 US Hwy 311
City:Sophia County:Randolph Zip:27350
3. Directions to project (from nearest major intersection):
From Raleigh take I-85 south to Greensboro. Take Hwy 220 south toward Asheboro Take 311 north toward
High Point, turn left on Old Way Rd, Site is 0.10 miles on right.
4. Latitude:350 81' 65" N Longitude: 79° 85'07" 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 SVVU- -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 numberN /A , its issue date (if known) ' and the status of
construction: ®Not Started ❑Partially Completed* El Completed* *provide a designer's certification
2. Specify the type of project (check one):
Flow 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 DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, N/A 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 ®Sedimentation /Erosion Control: 30 ac of Disturbed Area
❑NPDES Industrial Stormwater ®404/401 Permit: Proposed Impacts 83' Perm, 15' Temporary
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:Ace /Avant Rando - 2012 -017 (Land Quality - 3- 16-12) US Army Corp
404, Action ID 201201202, NW 14,8/14/2012
5. Is the project located within 5 miles of a public airport? ❑No ❑Yes
If yes, see S.L. 2012 -200, Part VI: htW:Hl 2ortal. ncdenr.orglweb/wq/ws /su /statesw /rules laws
Form SWU -101 Version 06Aug2012 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:Ace Avant
Signing Official & Title:Mr. Tracy Matson, Owner
b. Contact information for person listed in item 1a above:
Street Address: 109 Seminole Drive
City: Archdale State: NC Zip: 27263
Mailing Address (if applicable): 109 Seminole Dr.
City: Archdale State: NC Zip: 27263
Phone: (336 ) 431 -5852 Fax: (336 ) 431 -0081
Email: Tmatson ®aceavant.com
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: Ace /Avant Real Property Company, LLC
Signing Official & Title: Tracy Matson, Owner
b. Contact information for person listed in item 2a above:
Street Address: 109 Seminole Drive
City: Archdale State: NC Zip: 27263
Mailing Address (if applicable): 109 Seninole Drive
City: Archdale State: NC Zip:27263
Phone: (336 ) 431 -5852 Fax: (336 ) 431 -0081
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: H. Mack Summev, Jr., PE
Signing Official & Title:
b. Contact information for person listed in item 3a above:
Mailing Address: PO Box 968
City: Asheboro State: NC Zip: 27204
Phone: (336 ) 328 -0902 Fax: (336 ) 328 -0922
Email: [e-mail]
4. Local jurisdiction for building permits: Randolph County
Point of Contact: David Bryant Phone #: (336 ) 318 -6560
Form SWU -101 Version 06Aug2012 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Stormwater will be treated in 4 BMP's. 1- Detention Pond to treat the majority of the site and 3 smaller
bioretention ponds to treat the access drive into the property.
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 PUD Approval 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 11- Post Construction
3. Stormwater runoff from this project drains to the Yadkin River basin.
4. Total Property Area: 65.683 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area +: 65.683 acres
+ Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal Hz ?h Water (NHM line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or ZA line. The resultant project area is used to
calculate overall percent built upon area (BLIA). 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 = 26.45 %
9. How many drainage areas does the project have? 4 (For high density, count 1 for each proposed engineered
stormwater BMP. For low 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 2
Drainage Area 3
Drainage Area 4
Receiving Stream Name
UT - Caraway Cr
UT - Caraway Cr
UT - Caraway Cr
UT - Caraway Cr
Stream Class *
WS Ill
WS III
WS111
WSllI
Stream Index Number *
0
0
0
32,758
Total Drainage Area (so
115,947
16,762
17,554
1,106,424
On -site Drainage Area (sf)
115,947
16,762
17,554
1,106,424
Off -site Drainage Area (so
0
0
0
0
Proposed Impervious Area ** (so
17,652
7,900
4,019
727,452
% Impervious Area** total
15.2%
47.1%
22.9%
65.759'0
Im " Surface Area
Dfainage Area 1
Drainage Area I
Drairage Area a
DrameW Area 4
On -site Buildings/ Lots (so
0
0
0
150,000
On -site Streets (so
17,652
7,900
4,019
22,300
On -site Parking (so
0
0
0
32,758
On -site Sidewalks (so
0
0
0
0
Other on -site (so
0
0
0
522,394
Future (so
0
0
0
0
Off -site (so
0
0
0
0
Existing BUA *** (so
0
0
0
F 0
Total (so:
17,652
7,900
4,019 1
727,452
Stream Class and Index Number can be determined at. http& ortal. ncdenr.oryfwebhvalvs /csu/classi cations
"* 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 06Aug2012 Page 3 of 6

'Report only that amount of existing BLIA that will remain after development. Do not report any existing BLIA that
is to be removed and which will be replaced by new B UA.
11. How was the off -site impervious area listed above determined? Provide documentation. Survey &
GIS Toyogaphic Information
Projects in Union County: Contact DWQ Central ice 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 hgp: / /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 Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available from htty: / /portal.ncdenr.org /web /wq/ws /su /statesw /forms docs. The complete
application package should be submitted to the appropriate DWQ Office. (The appropriate office may be
found by locating project on the interactive online map at h!W://portal.ncdenr.org/web/­­­34/wsLsu/maps.)
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 hn://12ortal.ncdenr.org/web/wg/ws/su/statesw/forms docs.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.
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
agreement(s) for each BMP.
4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to 1�c
h!!p://www.envheliD.org/Rages/onestopexpress.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 /managementfor
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 RL
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the 1/2
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.
m. 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.
n. Existing drainage (including off - site), drainage easements, pipe sizes, runoff calculations.
Form SWU -101 Version 06Aug2012 Page 4 of 6

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 P,;r—
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 "x11" 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 DWQ to verify the SHWT prior
to submittal, (910) 796 - 7378.)
10. A copy of the most current property deed. Deed book: 1988 Page No: 1185 P;-
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 la, 2a, and /or 3a per 15A NCAC 2H.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.
h!W://www.secretaiy.state.nc.us/CoEporations/CSearch.AWx
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
h!W://portal.ncdenr.org/web/`­wg/ws/su/statesw/­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 DWQ 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:
Consulting Firm:
Mailing Address:
City:
Phone: ( )
Email:
State: Zip:
Fax: ( )
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 1a) 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 06Aug2012 Page 5 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 DWQ Stormwater permit reverts back to
me, the property owner. As the property owner, it is my responsibility to notify DWQ 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.
Signature: 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 expires,
X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, item la) Tracy Matson
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 stormwater rules under 15A NCAC 21-1.1000 and any other applicable state stormwater requirements.
Signa Date: ia-14' 1 a
I, t�I�OL�Qrinlllq a Notary Public for the State of �o�rollno. ,County of
Rn do hereby certify that ��F�QG1 _ n personally appeared
t� ' f C�e�(11D�X
before me this "t day of � , c9QQ , and acknowled ge ue ex lion of the application for
r
a stormwater permit. Witness my hand and official seal,
ERIKA PENNINGTON
NOTARY PUBLIC
R"ddog &"* *419 &W&44
My commwa exams: •
SEAL
My commission expires -. • V) - a0 t Le
Form SWU -101 Version 06Aug2012 Page 6 of 6

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph ll - Post Construction
(select all that apply) ❑ Non - Coastal SW- HQW /ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ Mgmt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an original
I. 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.):
Ace /Avant
2. Location of Project (street address):
Near 5093 US Hwy 311
City:Sophia County:Randolph Zip:27350
3. Directions to project (from nearest major intersection):
From Raleigh take I -85 south to Greensboro. Take Hwy 220 south toward Asheboro Take 311 north toward
High Point, turn left on Old Way Rd, Site is 0.10 miles on right.
4. Latitude:350 81' 65" N Longitude: -790 85' 07" 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 numberN /A , 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 DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, N/A 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 ®Sedimentation /Erosion Control: 30 ac of Disturbed Area
❑NPDES Industrial Stormwater ®404/401 Permit: Proposed Impacts 83' Perm, 15' Temporary
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:Ace /Avant Rando - 2012 -017 (Land Quality - 3 -16-12 ) US Army Corp
404, Action ID 201201202, NW 14,8/14/2012
5. Is the project located within 5 miles of a public airport? ❑No ❑Yes
If yes, see S.L. 2012 -200, Part VI: hiW: / /portal.ncdenr.org /web /wq/ws /su /statesw /rules laws
Form SWU -101 Version 06Aug2012 Page 1 of 6

III. CONTACT INFORMATION
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:Ace Avant
Signing Official & Title:Mr. Tracy Matson, Owner
b. Contact information for person listed in item 1a above:
Street Address: 109 Seminole Drive
City: Archdale State: NC Zip: 27263
Mailing Address (if applicable): 109 Seminole Dr.
City: Archdale
Phone: (336 ) 431 -5852
Email: Tmatson ®aceavant.com
State: NC Zip: 27263
Fax: [phone]
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: Ace /Avant Real Property Company LLC
Signing Official & Title: Tracy Matson, Owner
b. Contact information for person listed in item 2a above:
Street Address: 109 Seminole Drive
City: Archdale State: NC Zip: 27263
Mailing Address (if applicable): 109 Seninole Drive
City: Archdale State: NC Zip:27263
Phone: (336 ) 431 -5852 Fax: (336 ) 431 -0081
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: H. Mack Summev, Ir. , PE
Signing Official & Title:
b. Contact information for person listed in item 3a above:
Mailing Address: PO Box 968
City: Asheboro
Phone: (336 ) 328-0902
Email: mack ®asheboro.com
State: NC Zip: 27204
Fax: (336 ) 328 -0922
4. Local jurisdiction for building permits: Randolph County
Point of Contact: David Bryant Phone #: [phone]
Form SWU -101 Version 06Aug2012 Page 2 of 6

IV. PROJECT INFORMATION
1. In the space provided below, br iefly summarize how the stormwater runoff will be treated.
Stormwater will be treated in 4 BMP's. 1- Detention Pond to treat the majority of the site and 3 smaller
bioretention ponds to treat the access drive into the property
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 PUD Approval 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 River basin.
4. Total Property Area: 65.683 acres
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area +: 65.683 acres
+ Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal Hi h Water (NnM line or Mean High Water
(MW line, and coastal wetlands landward from the NHW (or Za 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 = 26.45 %
9. How many drainage areas does the project have? 4 (For high density, count 1 for each proposed engineered
stormwater BMP. For low 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 2
Drainage Area 3
Drainage Area 4
Receiving Stream Name
Stream Class *
UT - Caraway Cr
WS in
UT - Caraway Cr
WS lll
UT - Caraway Cr
WSlll
UT - Caraway Cr
WSM
Stream Index Number *
17,652
7,900
4,019
22,300
Total Drainage Area (so
On -site Drainage Area (so
Off -site Drainage Area (sf)
115,947
115,947
0
16,762
16,762
0
17,554
17,554
0
1,106,424
1,106,424
0
Proposed Impervious Area ** s
17,652
7,900
4,019
727,452
% Impervious Area* total
15.2%
47.1%
22.9%
65.75%
Impervious * Surface Area
Drainage Area 1
Drainage Area 2
Drainage Area 3
Drainage Area 4
On -site Buildings /Lots (sf)
0
0
0
150,000
On -site Streets (so
17,652
7,900
4,019
22,300
On -site Parking (so
0
0
0
32,758
On -site Sidewalks (sf)
0
0
0
0
Other on -site (so
0
0
0
522,394
Future (so
0
0
0
0
Off -site (sf)
0
0
0
0
Existing BUA * ** (so
0
0
0
0
Total (so:
17,652
7,900
4,019
727,452
unu 111=X Number can be determined at: http.&portal.ncdeizr.2rgLuLeWq4LslcsulcI assifications
* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Forn► SWU -101 Version 06Aug2012 Page 3 of 6

Scott F. Cole
Licensed Soil Scientist
312 Copple's Road Ext.
Asheboro, NC 27205 -0711
336.460.4554
Summey Engineering Associates
Attn: Mr. Mack Summey
1342 E. Salisbury Street
Asheboro, NC 27203
August 23, 2012
Re: Identification of the seasonal high water table; Ace Avant, New Market Township, Randolph County, PIN
7745730560.
Mr. Summey,
Per your request, soil conditions were evaluated within the areas shown on the attached map to determine the depth of the
seasonal high water table. Work was conducted to satisfy requirements set forth in the North Carolina Division of Water
Quality Stormwater Best Management Practices Manual. Samples were collected with hand augers.
The seasonal high -water table is determined by a field evaluation for soil wetness conditions. Soil wetness conditions are
determined by the presence of redoximorphic (redox) features with a chrome of 2 or less (in Munsell color notation) in
mottles or the horizon matrix. Colors of chroma 2 or less due to relic minerals from the parent material (underlying rock)
or anaerobic activity created by placement of fill material are not considered as indicators for seasonal high water.
RESULTS
Two areas of the property were evaluated for the presence of the SHWT. Multiple soil borings were evaluated within
each area to determine SHWT depth. Data for each location is below and is also shown on the attached map. Contour
data was obtained from NC DOT GIS division.
Test location #
Beginninp. Elevation
Total De nth
Bottom Elevation
SHWT
1 j
746'
12'
734'
Not observed
1
2
1 735'
9'
726'
Not observed
Please note that SHWT depths vary across the terrain and although evidence of the SHWT was not observed within the
areas evaluated, it cannot be guaranteed that the SHWT will not be encountered if storm water control devices are placed
well outside the test areas.
I am pleased to be of service in this matter and can be contacted at your convenience should you have questions
concerning information within this report.
Thank you,
Sco . Cole
North Carolina Licensed Soil Scientist
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a
FILED Rnn Shaw
Register of Deeds. Randolph Co-NC
Recording Fee. $28.00
NC Real Estate Ex Tx: $1114.00
ofoii 1110111/1 milli III
200808300001977 DEED
Bk:RE19W P9:118'.i
08/30/2000 10:31:22 AN 114
Mail to: Grantee, 109 Scom;r4ols Du. 44xcWo ts N L Z'77.63
Prepared by: Smith Alexander A Morgan, L.L.P., Attorneys, Asheboro, NC 27203
Excise Tax:
NORTH CAROLINA GENERAL WARRANTY DEED
THIS DEED is made this 29th day of August, 2006, by and between the following
Grantors and Grantees:
GRANTORS: CHARLES B. HARTLEY and wife,
ADA HARTLEY;
SPENCER J. HARTLEY and wife,
METTA R. HARTLEY
GRANTEES: ACEIAVANT REAL PROPERTY COMPANY, LLC
This designation Grantors and Grantees as used herein shall include said
parties, their heirs, successors, and assigns, and shall signify either singular, plural,
masculine, feminine or neuter as required by context.
WITNESSETH, that the Grantors, for a valuable consideration paid by the
Grantees, the receipt of which is hereby acknowledged, has and by these presents
does grant, bargain. sell and convey unto the Grantees in fee simple that certain lot or
parcel of land situated in New Market Township, Randolph County, North Carolina,
which is more particularly described as follows.
See ATTACHMENT A — Description attached hereto and Incorporated
herein by reference.

MINIMUM
is" 1186 214
TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges
and appurtenances thereto belonging to the Grantees in fee simple.
And the Grantors covenants with the Grantees, that Grantors are seized of the
premises in fee simple, has the right to convey the same in fee simple, that title is
marketable and free and clear of all encumbrances, and that Grantors will warrant and
defend the title against the lawful claims of all persons whomsoever.
IN WITNESS WHEREOF, the Grantors have hereunto set their hands and seals
the day and year first above written.
STATE OF NORTH CAROLINA, "e ell County,
I. Franas T. Crnnol , a Notary Public of the County and
State aforesaid, do hereby certify that CHARLES B. HARTLEY and wife, ADA
HARTLEY, personally appeared before me this day and acknowledged the execution of
the foregoing instrument.
2006. Witness my hand and official stamp or seal, this the day of August,
M commission expires:
ZdAd ZP10
VI
It 40 J-6X4-t `,6nd t
Public tcj } • • -•�

PPM1111111111
TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges
and appurtenances thereto belonging to the Grantees In fee simple.
And the Grantors covenants with the Grantees. that Grantors are seized of the
premises in fee simple, has the right to convey the same in fee simple, that title is
marketable and free and clear of all encumbrances, and that Grantors will warrant and
defend the title against the lawful claims of all persons whomsoever.
IN WITNESS WHEREOF, the Grantors have hereunto set their hands and seals
the day and year first above written.
t
J-
METTA R.
STATE OF NORTH CAROLINA, Randolph County,
I, =—== A. BILM , a Notary Public of the County and
State aforesaid, do hereby certify that SPENCER J. HARTLEY and wife, METTA R.
HARTLEY, personally appeared before me this day and acknowledged the execution of
the foregoing instrument.
2006. Witness my hand and official stamp or seal, this the sorb day of August,
My commission expires:
SBPTZMM 19, 2010
Notary Public

�4y""E'll
RE1888 1188
ATTACHMENT A
Description for
Ace /Avant Real Property Company, LLC
New Market Township, Randolph County, North Carolina:
TRACT NO. 1: BEING ALL of that 122.1003 ages lying off the
South side Of US Highway 311 as shown by plat entitled
"Property of Eleanor J. Hartley" and recorded In Plat Book 39,
Page 87, in the office of the Register of Deeds of Randolph
County, North Carolina.
TRACT NO. 2: BEING ALL of Tract No. 3 (containing 1.364 acres)
and Tract No. 2 (containing 0.264 acres) of property entitled
°W.A. Johnson Helrr as shown by plat recorded In Plat Book 89,
Page 10, in the office of the Register of Deeds of Randolph
County, North Carolina.

North Carolina Secretary of State
Page 1 of 2
North Carolina
Elaine F. Marshall DEPARTMENT OF THE
Secretary SECRETARY OF STATE
PO Box 29822 Raleigh, NC 276264622 (919 )807 -2000
Date: 12/10/2012
Click here to:
View Document Filings I File an Annual Report i
Print a Pre - populated Annual Report Fillable PDF Form I Amended A Previous Annual Report
Corporation Names
Name
Name Type
NC ACE/AVANT REAL PROPERTY
COMPANY, LLC
LEGAL
Limited Liability Company Information
SOSID:
0576217
Status:
Current -Active
Effective Date:
1/3/2001
Annual Report Due Date:
Citizenship:
DOMESTIC
State of Inc.:
NC
Duration:
PERPETUAL
Annual Report Status:
CURRENT
Registered Agent
Agent Name:
MATSON, TRACY
Office Address:
3760 STANLEY HILL ROAD
SOPHIA NC 27350
Mailing Address:
3760 STANLEY HILL ROAD
SOPHIA NC 27350
Principal Office
Office Address:
109 SEMINOLE DRIVE
ARCHDALE NC 27263
Mailing Address:
109 SEMINOLE DRIVE
ARCHDALE NC 27263
Officers
Title:
MANAGER
Name:
DAVE W. SOMERO
Business Address:
53 WHEELER ROAD
NEW IPSWICH NH 03071
Title: MEMBER
Name: MICHAEL SOMERO
Business Address: 3537 THAYER ROAD
TRINITY NC 27370
Title: MEMBER
http: / /www. secretary. state. nc. us / corporations /Corp.aspx ?Pitemld= 5299708 12/10/20

. North Carolina Secretary of State Page 2 of 2
Name: TRACY MATSON
Business Address: 3760 STALEY HILL RD
SOPHIA NC 27350
This website is provided to the public as a part of the Secretary of State Knowledge Base (SOSKB) system. Version:
3782
hq: / /www. secretary. state. nc. us / corporations /Corp.aspx ?Pitemld= 5299708
12/10/20

Owner /Developer
Mr. Tracy Matson
Ace /Avant Real Property
109 Seminole Drive
Archdale, NC 27263
Contact: Design Engineer
See Below Info:
Prepared By.,
SUMMEY ENGINEERING ASSOCIATES, PLLC
ENGINEERING • LAND PLANNING • CONSULTING
P.O. BOX 968
ASHEBORO, NC 27204
Phone: [phone] / Fax: [phone]
E -mail. [e-mail]
December, 2012
���26447
F t1 to
�'• • NQl NEE, �

RIO- RETENTION AREA #1
P (rainfall to be controlled) =
1
in.
I (% imperviousness of contributing drainage area) =
15.22
%
Rv (volumetric runoff coefficient) =
0.18698
Da (contributing drainage area) =
2.66
ac.
WQV (water quality volume) =
1805.44148
cu. ft.
df (filter bed depth) =
2
ft
k (coefficient of permeability of filter media) =
2
ft. /day
hf (average height of water above filter bed) =
05
ft
tf (time for filter bed to drain) =
2
days
Af (filter bed surface area) =
361
s f.
RIO - RETENTION AREA #2
P (rainfall to be controlled) =
1
in.
I (% imperviousness of contributing drainage area) =
43.31
%
Rv (volumetric runoff coefficient) =
0.43979
Da (contributing drainage area) =
0.419
ac.
WQV (water quality volume) =
668.907396
cu. ft.
df (filter bed depth) =
2
ft.
k (coefficient of permeability of filter media) =
2
ft. /day
hf (average height of water above filter bed) =
0.5
ft
tf (time for filter bed to drain) =
2
days
Af (filter bed surface area) =
134
s.f.
RIO - RETENTION AREA #3
P (rainfall to be controlled) = 1 in
I (% imperviousness of contributing drainage area) = 19.72 %
Rv (volumetric runoff coefficient) = 0.22748
Da (contributing drainage area) = 0.465 ac
WQV (water quality volume) = 383.974866 cu. ft.
df (filter bed depth) = 2 ft
k (coefficient of permeability of filter media) = 2 ft /day
hf (average height of water above filter bed) = 0.5 ft
tf (time for filter bed to drain) = 2 days
Af (filter bed surface area) = 77 s f.

rn
Permit Number
(to be provided by D WQ)
o�OF W ATF9oG
y f
Aff�
A > y
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
1,810.0 ft
Project name
Ace Avante E -2137
Contact name
Mack Summey
Phone number
336/328.0902
Date
December 6, 2012
Drainage area number
1
11. DESIGN INFORMATION
ft3
Site Characteristics
Post - development 1 -yr, 24-hr runoff
Drainage area
115,947 fe
Impervious area
17,652 ftz
Percent impervious
15.2% %
Design rainfall depth
1.0 inch
Peak Flow Calculations
Is pre/post control of the 1 -yr, 24-hr peak flow required? Y (Y or N)
1 -yr, 24-hr runoff depth 2.8 in
1 -yr, 24-hr intensity 0.12 in/hr
Pre - development 1 -yr, 24-hr peak flow 0.110 ft3
/sec
Post- development 1 -yr, 24-hr peak flow 0.270 ft3 /sec
Pre/Post 1 -yr, 24-hr peak control 0.160 ft3isec
Storage Volume: Non-SA Waters
Minimum volume required
1,810.0 ft
OK
Volume provided
2,000.0 ft3
OK
Storage Volume: SA Waters
1.00 in/hr
OK
1.5° runoff volume
ft3
Pre - development 1 -yr, 24-hr runoff
ft3
OK
Post - development 1 -yr, 24-hr runoff
ft3
OK
Minimum volume required
0 ft3
OK
Volume provided
ft3
Cell Dimensions
29 (unitless)
OK
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Parts I and II. Design Summary, Pagg 1 of 2
Surface area of the top of the bioretention cell
2,000.0 fe
OK
Length:
125 ft
OK
Width:
16 ft
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
Drawdown time, total:
24 hr
In-situ soil:
Soil permeability
0.60 in/hr
OK
Planting media soil:
Soil permeability
1.00 in/hr
OK
Soil composition
% Sand (by volume)
85%
OK
% Fines (by volume)
10%
OK
% Organic (by volume)
5%
OK
Total: 100%
Phosphorus Index (P- Index) of media
29 (unitless)
OK
Form SW401- Sioretendon -Rev 8
June 25, 2010
Parts I and II. Design Summary, Pagg 1 of 2

Permit Number
(to be provided by O Wr)
Basin Elevations
Temporary pool elevation
741.00 fmsl
Type of bioretention cell (answer °Y° to only one of the two
following questions):
Is this a grassed cell?
Y
(Y or N)
OK
Is this a cell with treesishrubs?
N
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
740 fmsl
Depth of mulch
3 inches
OK
Bottom of the planting media soil
738 fmsl
Planting media depth
2 ft
Depth of washed sand below planting media soil
0 33 it
Are underdrains being installed?
Y
(Y or N)
How many clean out pipes are being installed?
2
OK
What factor of safety is used for sizing the underdrains? (See
10
OK
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 it
the bottom of the cell to account for underdrains
Bottom of the cell required
736.67 fmsl
SHWT elevation
732 fmsl
Distance from bottom to SHWT
4.67 it
OK
Internal Water Storage Zone (IWS)
Does the design include IWS
Y
(Y or N)
Elevation of the top of the upturned elbow
fmsl
Separation of IWS and Surface
740 it
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
3
OK
Additional Information
Does volume in excess of the design volume bypass the
Y
(Y or N)
OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
Y
(Y or N)
OK
through a vegetated filter?
What is the length of the vegetated filter?
20 it
Does the design use a level spreader to evenly distribute flow?
N
(Y or N)
Show how flow is evenly distributed
Is the BMP located at least 30 feet from surface waters (50 feet if
Y
(Y or N)
OK
SA waters)?
Is the BMP localed at least 100 feet from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3.1?
Y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access
Y
(Y or N)
OK
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
1 ft/sec
OK
Is the area surrounding the cell likely to undergo development in
N
(Y or N)
OK
the future?
Are the slopes draining to the bioretention cell greater than 20 %?
N
(Y or N)
OK
Is the drainage area permanently stabilized?
Y
(Y or N)
OK
Pretreatment Used
(Indicate Type Used with an °)C in the shaded cell)
Gravel and grass
(flinches gravel followed by 3-5 it of grass)
Grassed Swale
X
OK
Forebay
Other
Form SW401- Bioretention -Rev a
June 25, 2010 Parts I and 11 Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWQ)
1� 0r0� W AT eR�G
y r
vm= Y
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
Y (Y or N)
Project name
Ace Avante E -2137
Contact name
Mack Summey
Phone number
3361328 -0902
Date
December 6, 2012
Drainage area number
II. DESIGN INFORMATION
Y (Y or N)
Site Characteristics
1 -yr, 24-hr runoff depth
Drainage area
18,235 ftz
Impervious area
7,897 ft
Percent impervious
43.3% %
Design rainfall depth
1.0 Inch
Peak Flow Calculations
Is pre/post control of the 1 -yr, 24-hr peak flow required?
Y (Y or N)
1 -yr, 24-hr runoff depth
28 in
1 -yr, 24-hr intensity
0.12 in/hr
Pre- development 1 -yr, 24-hr peak flow
0.018 ft3 /sec
Post - development 1 -yr, 24-hr peak flow
0.043 ft3 /sec
Pre/Post 1 -yr, 24-hr peak control
0.025 ft /sec
Storage Volume: Non-SA Waters
Minimum volume required
670.0 ft3
Volume provided
890.0 ft3
OK
Storage Volume: SA Waters
1.5° runoff volume
ft
Pr"evelopment 1 -yr, 24 -hr runoff
ft
Post - development 1 -yr, 24-hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft
Celt Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Surface area of the top of the bioretention cell
890.0 ftz
OK
Length:
56 ft
OK
Width:
16 ft
OK
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
Drawdown time, total:
24 hr
In-situ soil:
Soil permeability
0.60 in/hr
OK
Planting media soil.•
Soil permeability
1.00 in/hr
OK
Soil composition
% Sand (by volume)
85%
OK
% Fines (by volume)
10%
OK
% Organic (by volume)
5%
OK
Total:
100%
Phosphorus Index (P- Index) of media
29 (unitiess)
OK
Form SW401- Bionstention -Rev 8
June 25, 2010 Parts I and II. Design Summary, Page 1 of 2

M Permit Number
(to be provided by DWQ)
Basin Elevatlons
Temporary pool elevation
739.00 fmsl
Type of bioretention cell (answer °Y° to only one of the two
following questions):
Is this a grassed cell?
Y
(Y or N)
OK
Is this a cell with trees/shrubs?
N
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
738 fmsl
Depth of mulch
3 inches
OK
Bottom of the planting media soil
736 fmsl
Planting media depth
2 ft
Depth of washed sand below planting media soil
0 33 ft
Are underdreins being installed?
Y
(Y or N)
How many dean out pipes are being installed?
1
OK
What factor of safety is used for sizing the underdrains? (See
10
OK
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
1 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
734.67 fmsl
SHWT elevation
732 fmsl
Distance from bottom to SHWT
2.67 ft
OK
Internal Water Storage Zone (FINS)
Does the design include IWS
Y
(Y or N)
Elevation of the top of the upturned elbow
fmsl
Separation of IWS and Surface
738 ft
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
3
OK
Additional Information
Does volume in excess of the design volume bypass the
Y
(Y or N)
OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
Y
(Y or N)
OK
through a vegetated filter?
What is the length of the vegetated fiReft
20 ft
Does the design use a level spreader to evenly distribute flow?
N
(Y or N)
Show Flow flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
Y
(Y or N)
OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access
Y
(Y or N)
OK
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
1 ft/sec
OK
Is the area surrounding the cell likely to undergo development in
N
(Y or N)
OK
the future?
Are the slopes draining to the bioretention cell greater than 20%?
N
(Y or N)
OK
Is the drainage area permanently stabilized?
Y
(Y or N)
OK
Pretreatment Used
(Indicate Type Used with an °X° in the shaded cell)
Gravel and grass
(81nches gravel followed by 3 -5 ft of grass)
Grassed Swale
X
OK
Forebay
Other
Form SW401- Bioretenbon -Rev.8
June 25, 2010 Parts I and 11 Design Summary, Page 2 of 2

Permit Number.
(to be provided by DWQ)
-
1
ARA ti
HCDEHR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submtted.
The Required Items Checklist (Part Ill) must be printed, filled out and submitted along with all of the required information.
I. PROJECT INFORMATION
ft3
Project name
Ace Avante E -2137
Contact name
Mack Summey
Phone number
3361328-0902
Date
December 6, 2012
Drainage area number
IL DESIGN INFORMATION
Site Characteristics
Drainage area
Impervious area
Percent impervious
Design rainfall depth
Peak Flow Calculations
20,266 ft
3,997 ft2
19.7% %
1.0 inch
Is pre/post control of the 1 -yr, 24-hr peak flow required? Y (Y or N)
1 -yr, 24-hr runoff depth 2.8 in
1 -yr, 24-hr intensity 0.12 in/hr
PreAevelopment 1 -yr, 24-hr peak flow 0.020 ft3 /sec
Post - development 1 -yr, 24-hr peak flow 0.048 ft3 /sec
Pre/Post 1 -yr, 24-hr peak control 0.028 ft3 1sec
Storage Volume: Non-SA Waters
Minimum volume required 385.0 ft3
Volume provided 420.0 ft3 OK
Storage Volume: SA Waters -
1.5° runoff volume
ft3
Pre-development 1 -yr, 24 -hr runoff
ft3
Post - development 1 -yr, 24-hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Surface area of the top of the bioretention cell
420.0 ftz
OK
Length:
42 ft
OK
Width:
10 ft
OK
-or- Radius
ft
OK
Media and Soils Summary
5%
OK
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
12 hr
OK
Drawdown time, total:
24 hr
Insftu soil.•
Soil permeability
0 60 in/hr
OK
Planting media soft
Soil permeability
1001n1hr
OK
Soil composition
% Sand (by volume)
85%
OK
% Fines (by volume)
10%
OK
% Organic (by volume)
5%
OK
Total: 100%
Phosphorus Index (P- Index) of media
29 (unitless)
OK
Form SW401- Bioretention -Rev e
June 25. 2010
Parts I and 11 Design Summary, Page 1 of 2

Permit Number.
(to be provided by DM)
Basin Elevations
Temporary pool elevation
737.00 fmsl
Type of bioretention cell (answer °Y° to only one of the two
following questions):
Is this a grassed cell?
Y
(Y or N)
OK
Is this a cell with trees/shrubs?
N
(Y or N)
Planting elevation (top of the mulch or grass sod layer)
736 fmsl
Depth of mulch
3 inches
OK
Bottom of the planting media soil
734 fmsl
Planting media depth
2 ft
Depth of washed sand below planting media soil
0.33 It
Are underdrains being installed?
Y
(Y or N)
How many clean out pipes are being installed?
1
OK
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
10
OK
Additional distance between the bottom of the planting media and
1 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
732.67 hell
SHWT elevation
730 fmsl
Distance from bottom to SHWT
2,67 It
OK
Internal Water Storage Zone (MIS)
Does the design include IWS
Y
(Y or N)
Elevation of the top of the upturned elbow
fmsl
Separation of IWS and Surface
736 ft
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
3
OK
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
Y
(Y or N)
OK
Does volume in excess of the design volume flow evenly distributed
through a vegetated filter?
Y
(Y or N)
OK
What is the length of the vegetated filter?
20 ft
Does the design use a level spreader to evenly distribute flow?
N
(Y or N)
Show how flow is evenly distributed
Is the BMP located at least 30 feet from surface waters (50 feet 9
Y
(Y or N)
OK
SA waters)?
Is the BMP located at least 100 feet from water supply wells?
Y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1?
Y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access
Y
(Y or N)
OK
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
1 ft/sec
OK
Is the area surrounding the cell likely to undergo development in
N
(Y or N)
OK
the future?
Are the slopes draining to the bioretention cell greater than 20%?
N
(Y or N)
OK
Is the drainage area permanently stabilized?
Y
(Y or N)
OK
Pretreatment Used
(Indicate Type Used with an °X° in the shaded cell)
Gravel and grass
(flinches gravel followed by 3 -5 it of grass)
Grassed Swale
X
OK
Forebay
Other
Form SW401- Bioretenbon -Rev 8
June 25, 2010 Parts I and 11 Design Summary, Page 2 of 2

r+., 1.8 Permit No.
(to be provaied by OWQ)
ATA y
HOMo <
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submffted
The Required Items ChaWlst (Part 111) must be printed, filled out and submlaed along with all of ft required Information.
I. PROJECT INFORMATION
Project name
Ace Avante E•2137
Contact person
H Mack Summay Jr PE
Phone number
3361328 -0902
Data
1216/2012
Drainage area number
4
II. DESIGN INFORMATION
Site Characteristics
Drainage area
1,106,424 f?
Impervious area, post - development
727,452 fe
% Impervious
65.T5-%
Design rainfall depth
1.0 in
Storage Volume: Non-SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5° runoff volume
Pre- development 1 -yr, 24-hr runoff
Post -development 1 -yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pra"st control of the tyr 24hr storm peak flow required?
1 -yr, 24-hr rainfall depth
Rational C, pre -development
Rational C, post -development
Rainfall Intensity: I -yr, 24-hr storm
Pre - development 1 -yr, 24-hr peak flow
Post -development 1 -yr, 24-hr peak Ilow
Pre/Post 1 -yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Pemranent pool elevation
SHWT elevation (approx. at the perm. pool elevation)
Top of 10ft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment deanout, top elevation (bottom of pond)
Sediment deanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state-required temp. pool?
Elevation of the top of the additional volume
59,169 fe
68'748 ft OK volume provided is equal to or in excess of volume required.
rF
u+r
fe
fla
fe
fl'
Y (Y or N)
2.8 in
0.35 (unitless)
0 85 ( unitless)
0.12 In/hr OK
1.07 felsec
2.59 fe/sec
1.52 fe/sec
728.00 fowl
726.50 fnsl
718.00 fmsl
727.00 final
726 00 frrsl
723.50 fmsl
722.50 final
1.00 It
N (Y or N)
fmsl
Form SW401•Wet Detention Bas"ev 94/18/12 Parts 18 11 Design Summary, Page 1 of 2

01"e
IL DESIGN INFORMATION
Surface Areas
Area, temporary pool 47,835 fe
Area REQUIRED, permanent pool 41,933 fe
SAIDA ratio 3 79 (unitless)
Area PROVIDED, permanent pool, A,,,,_,,
43,829 fe OK
Area, bottom of 10ft vegetated shelf, AbO_,,i,,ii
39,700 ft`
Area, sediment cleanout, top elevation (bottom of pond), A
36,190 ft'
Volumes
Y (Y or N)
Volume, temporary pool
68,748 ft OK
Volume, permanent pool, V,,,,p„i
70,254 fe
Volume, forebay (sum of forebays N more than one forebay)
14,563 ft
Forebay % of permanent pool volume
20.7%% OK
SAIDA Table Data
Design TSS removal
90%
Coastal SAIDA Table Used?
N (Y or N)
MountaiNPledmont SAIDA Table Used?
Y (Y or N)
SAIDA ratio
3.79 (unitless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
N (Y or N)
Volume, permanent pool, VP„_PW
70,254 ft'
Area provided, permanent pool, A,,,,_„i
43,829 fl
Average depth calculated
3.00 ft
OK
Average depth used in SAIDA, d,, (Round to nearest 0.5111)
3.0 ft
OK
Calculation option 2 used? (See Figure 10-2b)
Y (Y or N)
Area provided, permanent pool, Av.„-Id
43,829 If
Area, bottom of 1 Oft vegetated shelf, Arta
39,700 fr
Area, sediment ceanout, top elevation (bottom of pond), A
36,190 f?
'Depth' (distance b/w bottom of 10ft shelf and top of sediment)
2.50 It
Average depth calculated
3.00 ft
OK
Average depth used in SAIDA, d81,, (Round to down to nearest 0.5ft)
3.0 It
OK
Drawdown CalcuMons
Drawdown through orifice?
Y (Y or N)
Diameter of orifice ('If circular)
300 in
Area of orifice (0-non-circular)
Ir?
Coefficient of discharge (CD)
0.60 (unitless)
Driving head (FU
1.50 ft
Drawdown through weir?
N (Y or N)
Weir type
(unidess)
Coefficient of discharge (C,)
(unitless)
Length of weir (L)
ft
Driving head (H)
It
Pre - development 1 -yr, 24-hr peak flow
1.07 fe/sec
Post -development 1 -yr, 24-hr peak flow
2.59 f?/sec
Storage volume discharge rate (through discharge orifice or weir)
0.05 {(3 /sec
Storage volume drawdown time
3.10 days
OK, draws down in 2 -5 days.
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build-out?
Drain mechanism for maintenance or emergencies is:
Form SW401 -Wet Detention Basin -Rev 9-4/18112
3 :1 OK
10 :1 OK
10A ft OK
3 :1 OK
30 :1 OK
Y (Y or N) OK
10 ft OK
N (Y or N) OK
Y (Y or N) OK
Y (Y or N) OK
Gate valve on riser to drain water
Permit No.
(to be provided by DWQ)
Parts I a 11 Design Summary. Page 2 of 2

PERMANENT WET DETENTION POND DESIGN - RISER/BARREL
SOPHIA, NC
TOTAL SITE AREA =
25 40 acres
PROPOSED BUILT UPON AREA =
16 70 acres
FUTURE BUILT UPON AREA =
0 00 acres
TOTAL ON -SITE BUILT UPON AREA =
16 70 acres
PERCENT BUILT -UPON =
6575%
ON -SITE DRAINAGE AREA TO POND •
25 40 acres
ON -SITE BUA TO POND =
16 70 acres
ONSITE % BUA FOR POND SUB -BASI
6575%
OFF -SITE DRAINAGE AREA TO POND
0 00 acres
TOTAL WATERSHED AREA TO POND
25.40 acres
DISTURBED AREA =
16.70 acres
OFF -SITE B U A TO POND =
0 00 acres
% OF OFF -SITE B U A TO POND =
00%
TOTAL B UA TO POND
16 70 acres
COMPOSITE B U % =
65.75%
TEMP SED STOR. USED (YIN)
Y
CHECKED BY. TAK
DATE 8/5/2012
1 EMYUKAKY 5EUIMENT 5TUKACiE
0 5 acre-inch per disturbed acre
PERMANENT SEDIMENT STORAGE
0125 acre -in per total drainage area
PERMANENT WATER QUALITY
DEPTH (minimum 3 feet)
3.0 feet
SA/DA
3 79 percent
10 Inch rainfall to be controlled
TYPE
X corrugated aluminum
reinforced concrete
DESIGN STORM
10 year
RAINFALL INTENSITY
136 Inches per hour
RUNOFF COEFFICIENT (POST)
085
TYPE
X grass lined
np-rap lined
DESIGN STORM
100 year
RAINFALL INTENSITY
189 Inches per hour
RUNOFF COEFFICIENT
POND DATA
085
ELEV C BOT OF POND=
723.00
SURFACE AREA= 34964 SF
ELEV C SOT OF PSS =
72300
SURFACE AREA= 34964 SF
ELEV CBOT OF PWQ =
72350
SURFACE AREA= 36190 SF
ELEV C NORMAL POOL =
72650
SURFACE AREA = 43829 SF
ELEV C TOP OF RISER=
72800
SURFACE AREA = 47835 SF
ELEV C EMER SPILLWAY=
72900
ELEV @ TOP OF DAM =
730.00
INVERT OF BARREL =
72350
• BOT OF PSS = 723 00 JRFACE AREA = 34964 Square
• BOT OF PWQ = 723 50 1RFACE AREA = 36190 Square
VOLUME PROVIDED = 17789 Cubic
1RMANENT WATER QUALITY SURFACE AREA REQ'D 41935 Sauare Fel
MAL POOL ELEVATION = 7285
-ACE AREA PROVIDED = 43829 Sauare FeI
01
TEMPORARY WATER QUALITY STORAGE REQUIRED
Rv = Page01642 In/in
Wet Pond

REQUIRED =
@ BOT OF TWQ = 726 50 JRFACE AREA =
@ TOP OF TWO = 728 00 1RFACE AREA =
VOLUME PROVIDED =
43829 Square Feet
47835 Square Feet
OK
PRINCIPAL SPILLWAY
729.00
MAX PEAK FLOW=
14 9 CFS
HEAD ABOVE TOP OF RISER =
0 65 ft
ELEVATION AT TOP OF RISER =
72800
FLOW DEPTH =
1 00 ft
BARREL- BARREL SIZE USED (in) =
24 00 in dia
ELEVATION AT TOP OF RISER =
72800
ELEVATION OF BARREL INVERT =
723.5
Hw PROVIDED =
5.15 ft
Hw /D PROVIDED=
2576552014
Hw/D REQ'D FOR DESIGN STORM (FROM CHART) =
065
Hw REQUIRED =
1.30 ft
CHECK CULVERT (INLET CONTROL) =
OK
Q (FROM CHART) AT Hw /D PROVIDED =
55 0 CFS
RISER. RISER (AREA) =1.5 TIMES AREA OF.
24.00 in dia.
MIN RISER DIA =
29 39 in dia
RISER DIA USED =
36 in dia
WEIR EQUATION. Qw = 16 6 CFS
OK
ORIFICE EQUATION Qo = 27 5 CFS
OK
Qw CONTROLS 16.6 CFS
RISER CONTROLS
16.6 CFS
PRINCIPAL SPILLWAY SYSTEM:
OK
HATER QUALITY RELEASE HOLE
:LEV @ BOT OF WATER QUALITY RELEASE HOLE = 728 5(
VIAXIMUM RELEASE RATE = 2 Day:
MINIMUM RELEASE RATE = 5 Day,
MAXIMUM HOLE SIZE = 0134929376 4.97 in dia
MINIMUM HOLE SIZE = 005397175 3 15 in dia
ELEV @ EMER SPILLWAY=
729.00
DESIGN STORM PEAK FLOW =
40.8 CFS
FLOW THROUGH EMER SPILLWAY=
291 CFS
EMER SPILLWAY SIDE SLOPES (ie 3 if 31, 0 if vertical) =
3
FLOW DEPTH =
1 00 ft
VELOCITY (ft/sec) =
430
TRACTIVE FORCE (lb/ft-2) =
125
BOTTOM WIDTH REQUIRED =
3 89 ft
Page 2
Wet Pond

ELEV @ TOP OF RISER =
72800
ELEV @ BOT OF PSS =
72300
H=
500ft
AREA OF RISER =
7.1 SF
VOLUME OF RISER =
35 3 Cubic Feet
AREA OF BARREL =
31 SF
EXPOSED LENGTH =
10 00 It
VOLUME OF BARREL =
314 Cubic Feet
WEIGHT OF WATER DISPLACED =
4165 75 lb
FACTOR OF SAFETY (125%)
5207.19 lb
VOLUME OF ANCHOR PROVIDED = 40 0 Cubic Feet
OK
VOLUME OF ANCHOR REQUIRED= 34.7 Cubic Feet
PROJECT:
Drainage Area:
Disturbed Area:
Impervious Surface:
% Impervious:
Pool Volume Req'd.:
Soils (A,B,C, or D):
Scs Curve Number.
11POND ROUTING (CHAINSAW METHOD)
ACE AVANT U.S. 311 SITE
25 40 acres
16 70 acres
16 70 acres
657%
120 in/acre
C
90
STORM EVENT
C
I
(In/hr)
A
(acne)
Q
(cfs)
10 Year Prea"Opumt
035
579
2540
5148
10 Year Postaffewipmed
0.85
2540
1492
100 Year Postaffimbipment
085
2540
29 14
Temp. Sediment Storage Volume:
1/2 ac•in/ac
ss= (area'0 5.43560)/12= 30,310 50 d
Perm. Sediment Storage Volume:
1/8 ac•in/ac
ss= (area'0 125'43560)/12= 11,526 cf
Permanent Pool Volume:
pp =(area ' factor'43560) /12= 110,647 d
Total Pond Volume:
TPV= 152,483 d
INVERT OUT OF BARREL 72250
Top of Dam Elevation: 73000
Dam Width: 10
Riser
Diameter of nser-
36 00 in
Elev of riser top=
728 00 It
Cw at nser-
300
Cd at nser-
0.60
Trash Rack=
54 00 in
Barrel
Diameter of barrel= 24 00 in
Inv in= 723 50 ft
10 -YEAR FLOW BEFORE ROUTING
10 -YEAR FLOW AFTER ROUTING
100 -YEAR FLOW AFTER ROUTING
Ks= 35413 61 a= 10.47
b= 110
Page 3 Wet Pond

Inv Out=
72250
Length of barrel=
74 00 It
Cdb=
060
Slope=
135%
Emergency Spillway
Cw=
300
ECr=
729 00 ft
Dam width=
1000 It
Side Slope (Hor to Vert)
3 1
Bottom Width in Feet (Lw)
10
Slope in %
001
Manning n
0 062
Depth (ft)
0.05
Flow (cfa)
0.02
Velocity (ft(sec)
003
Tractive Force (lb/R"2)
000
Anti - flotation Device
Riser Height (ft.) 4.5
Barrel Length to Dam (ft) 10
Weight of Water Displaced by Riser (lb)-
Weight of Water Displaced by Barrel (lb)-
Weight of Water Displaced by Concrete (lb )
TOTAL
Weight of Concrete Block (Ib.):
Factor of Safety: 152
Size of Anti -seep Collars (in.) 60
Stage Storage Function
00001
1984
1959
0
3943
6000
Contour
Contour
Ama
(9q fQ
lncr
Vol
cu
Accum
Vol
cu fo
In S
In Z
Stage
(R)
Z eat
(ig
72300
3496400
724.00
3741500
361895
361895
1050
000
10
10
725.00
3993500
386750
74864 5
1122
069
20
2.0
726.00
4251200
41223.5
1 1160880
1166
110
1 3.0
2.9
727.00
45145.00
438285
159916.5
1198
139
40
39
728.00
4783500
464900
2064065
1224
161
50
50
72900
5058200
492085
2556150
1145
179
60
60
73000
53385.00
519835
3075985
1264
1.95
7 0
72
Page 4 Wet Pond

Roudng 10 Year Storm
MAX STAGE ELEV 728 65
MAX FLOW CFS 14 92
5148
P= 272
i= 136
Tp= 65 09 First Time Step=
s= 1 11 Time Step 651
Q•= 173
Time
min
Inflaw
cfs
Storage
Cu ft
Stage
ft
Outflow
(Cfa)
Riser
Weir
(cis
Riser
Orifice
cfs
Barrel
Orifice
cfs
Hydraulic
Grade Line
ds
Emergency
Spifhroay
ds
000
0.00
140250 88
72650
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72654
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2704
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144484 42
72660
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Page 9 Wet Pond

Routing 100 Year Storm
P= 377 Emergency Spillway Activated
MAX STAGE. 72905 i= 189
MAX FLOW 29.14 Tp= 73 20 First Time Stel 1
s= 1.11 Time Step= 732
Q'= 2 70
Time
min
Inflow
ds
Storage
cu
Stage
Outflow
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Riser
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Riser
Orifte
(ds)
Barrel
Ortfice
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Hydrolle
Grade Line
ds
Emergency
Spillway
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000
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Page 14 Wet Pond

Project Narrative
Ace /Avant Real Property
US Hwy 311
Sophia, NC
The purpose of this narrative is to briefly describe the development of a new industrial site off of
Highway 311 in Sophia, NC located on a 65.683 acre parcel in Randolph County.
This stormwater management plan is the result of the site access crossing a perennial stream.
The existing 65.683 acre site was wooded with mostly hardwoods and a few evergreens a few years
ago and was timbered. This parcel is the remainder of a larger 97 ac parcel from which NCDOT
crossed with the New Highway 311. The remaining property is zoned for industrial use. The existing
topography slopes from north to south to a perennial stream near the center of the property. The site is
not serviced by any public sewer.
The proposed development consists of clearing, grubbing & grading approximately 25 acres and
placing approximately 150,000 sf of buildings on the North — Northwestern portion of the property.
There was no existing Built Upon area.
The access to the property will create a new paved drive to the new site. The new BUA from this drive
will be treated in three (3) new bio- cells. Flow will go thru a grass lined channel to each new bio -cell.
A detailed sequence of construction has been provided to ensure the bio -cell is completed at the end of
the project and that the site is stabilized prior to allowing any stormwater to enter the completed bio -
cell.
The main project area consisting of the building and approximately 550,000 sf of new storage area for
logs will be treated by a wet detention pond designed for 90% TSS removal.
Please see the attached plans, calculations and details for more information.

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