SW4110702_CURRENT PERMIT_20110721

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW /,/// 6 7001
DOC TYPE
Q5- CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
ALLZD
YYYYMMDD

FOX
MC®ENR
North Carolina Department of Environment and Natural
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen H. Sullins
Director
July 18, 2011
Ms. Mary Joan Pugh, Deputy Director
North Carolina Zoological Authority
4401 Zoo Parkway
Asheboro, NC 27205
Subject: Stormwater Permit No. SW4110702
NC Zoo Polar Bear Exhibit
Randolph County
Dear Ms. Pugh:
nacalVED
N.C. Genf, of Efj4
JUL 2 1 `201i
W nS(6nSalem
RYgional office
Dee Freeman
Secretary
The Storlwater Permitting Unit received a complete Stormwater Management Permit Application for the NC
Zoo Polar Bear Exhibit on July 11, 2011. Staff review of the plans and specifications has determined that the
project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and
Session Law 2006-246. We are forwarding Permit No. SW4110702, dated July 18, 2011, for the construction,
operation and maintenance of the subject project and the stormwater BMPs.
This permit shall be effective from the date of issuance until July 17, 2021, and shall be subject to the
conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance
requirements in this permit. Failure to establish an adequate system for inspection and maintenance of the
stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to
request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit.
This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC
27611-7447. Unless such demands are made this permit shall be final and binding.
This project will be kept on file at the Winston-Salem Regional Office. If you have any questions, or need
additional information concerning this matter, please contact Mike Randall at [phone]; or
[e-mail].
Sincerely,
for Coleen H. Suliins
cc: Winston-Salem Regional Office
SPU Files
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] L FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
Nne
orthCarolina
)Vatumlly
An Equal Opportunity 4 Affirmative Action Employer

_1i
State Stormwater Permit
Permit No. SW4110702
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of
North Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
NC Zoo Polar Bear Exhibit
4401 Zoo Parkway, Asheboro North Carolina
Randolph County
FOR THE
construction, operation and maintenance of two bioretention cell(s) in compliance with
the provisions of Session Law 2006-246 and 15A NCAC 2H .1000 (hereafter referred to
as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by
the Division of Water Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until juiy 17, 2021, and shall be
subject to the following specified conditions and limitations:
I. DESIGN STANDARDS
This permit is effective only with respect to the nature and volume of stormwater
described in the application and other supporting data.
2. This stormwater system has been approved for the management of stormwater
runoff as described in this permit. The stormwater control has been designed to
handle the runoff from 29,650 square feet of impervious area.
3. The tract will be limited to the amount of built -upon area as indicated in this
permit, and per the application documents and as shown on the approved plans.
4. All stormwater collection and treatment systems must be located in either
dedicated common areas or recorded easements. The final plats for the project
will be recorded showing all such required easements, in accordance with the
approved plans.
5. The runoff from all built -upon area within the permitted drainage area of this
project must be directed into the permitted stormwater control system.
6. The built -upon areas associated with this project shall be located at least 30 feet
landward of all perennial and intermittent surface waters.
Page 1 of 4

State Stormwater Permit ;i
Permit No. SW4110702
7. The following design criteria have been provided in the bioretention cell and must
be maintained at design condition:
Drainage Area 1 Drainage Area 2
a. Drainage Area, acres:
17,950 54,970
b. Total Impervious Surfaces, ftz:
9,590 20,040
c. Design Storm, inches:
1.0 1.0
d. Max. Ponded Depth, feet:
12 12
e. Seasonal High Water Table, fmsl:
730 730
f. Planting Media Depth, feet:
3.33 3.33
g. Cell Dimensions, feet:
14 45 x 35
h. Bottom Elevatiop, fmsl:
732 732
i. Surface Area, ft :
1,170 2,300
j. Permitted Storage Volume, ft3:
990 1,770
k. Bypass 1 Storage Elevation, fmsl:
738 738
I. Predevelopment 1 year 24 hour:
0.520 1.460
m. Post development 1 year 24 hour:
0.970 2.730
n. Drawdown Time, hours:
48 48
o. Underdrain Diameter, inches:
4 & 6 4 & 6
p. Total number of plants provided:
17 18
q. Receiving Stream/River Basin:
Panther Creek 1 Cape Fear
r. Stream Index Number:
17-22-5
s. Classification of Water Body:
"C"
II. SCHEDULE OF COMPLIANCE
1. During construction, erosion shall be kept
to a minimum and any eroded areas of
the system will be repaired immediately.
2. The permittee shall at all time provide the
operation and maintenance necessary
to assure the permitted stormwater system functions at optimum efficiency. The
approved Operation and Maintenance Plan
must be followed in its entirety and
maintenance must occur at the scheduled
intervals including, but not limited to:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and re -vegetation of slopes and the filter strip.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans.
f. Debris removal and unclogging of all drainage structures, level spreader,
filter media, planting media, underdrains, catch basins and piping.
g. Access to the cell and outlet structure must be available at all times.
4. Records of maintenance activities must be kept for each permitted BMP. The
reports will indicate the date, activity, name of person performing the work and
what actions were taken.
5. The permittee shall prepare and have available for review an annual summary
report of the maintenance and inspection records for each BMP. The report
shall summarize the inspection dates, results of the inspections, and the
maintenance work performed at each inspection.
Page 2 of 4

ir
State Stormwater Permit
Permit No. SW41.10702
6. The facilities shall be constructed as shown on the approved plans. This permit
shall become void unless the facilities are constructed in accordance with the
conditions of this permit, the approved plans and specifications, and other
supporting data.
7. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from an appropriate designer for the system
installed certifying that the permitted facility has been installed in accordance
with this permit, the approved plans and specifications, and other supporting
documentation. Any deviations from the approved plans and specifications must
be noted on the Certification. A modification mav_ be required for those
deviations.
8. If the stormwater system was used as an Erosion Control device, it must be
restored to design condition prior to operation as a stormwater treatment device,
and prior to occupancy of the facility.
9. Access to the stormwater facilities shall be maintained at all times.
10. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans, including, but not limited to, those listed
below:
a. Any revision to any item shown on the approved plans, including the
stormwater management measures, built -upon area, details, etc.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area or to the
drainage area.
e. Further subdivision, acquisition, lease or sale of all or part of the project
area. The project area is defined as all property owned by the permittee,
for which Sedimentation and Erosion Control Plan approval or a CAMA
Major permit was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the
approved plan.
11. A copy of the approved plans and specifications shall be maintained on file by
the Permittee for a minimum of ten years from the date of the completion of
construction.
12. The Director may notify the permittee when the permitted site does not meet one
or more of the minimum requirements of the permit. Within the time frame
specified in the notice, the permittee shall submit a written time schedule to the
Director for modifying the site to meet minimum requirements. The permittee
shall provide copies of revised plans and certification in writing to the Director
that the changes have been made.
III. GENERAL CONDITIONS
This permit is not transferable except after notice to and approval by the Director.
In the event of a change of ownership, or a name change, the permittee must
submit a completed Name/Ownership Change form signed by both parties, to the
Division of Water Quality, accompanied by the supporting documentation as
listed on page 2 of the form. The approval of this request will be considered on
its merits and may or may not be approved.
Page 3 of 4

State Stormwater Permit ✓
Permit No. SW4110702
2. The permittee is responsible for compliance with all permit conditions until such
time as the Division approves a request to transfer the permit.
3. Failure to abide by the conditions and limitations contained in this permit may
subject the Permittee to enforcement action by the Division of Water Quality, in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
4. The issuance of this permit does not preclude the Permittee from complying with
any and all statutes, rules, regulations, or ordinances, which may be imposed by
other government agencies (local, state, and federal) having jurisdiction.
5. In the event that the facilities fail to perform satisfactorily, including the creation
of nuisance conditions, the Permittee shall take immediate corrective action,
including those as may be required by this Division, such as the construction of
additional or replacement stormwater management systems.
6. The permittee grants DENR Staff permission to enter the property during normal
business hours for the purpose of inspecting ail components of the permitted
stormwater management facility.
7. The permit issued shall continue in force and effect until revoked or terminated.
The permit may be modified, revoked and reissued or terminated for cause. The
filing of a request for a permit modification, revocation and re -issuance or
termination does not stay any permit condition.
8. Unless specified elsewhere, permanent seeding requirements for the stormwater
control must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
9. Approved plans and specifications for this project are incorporated by reference
and are enforceable parts of the permit.
10. The issuance of this permit does not prohibit the Director from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit
as allowed by the laws, rules and regulations contained in Session Law 2006-
246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al.
11. The permittee shall notify the Division in writing of any name, ownership or
mailing address changes at least 30 days prior to making such changes.
12. The permittee shall submit a renewal request with all required forms and
documentation at least 180 days prior to the expiration date of this permit.
Permit issued this the 18th day of July, 2011.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Co1een H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Page 4 of 4

Stormwater Permit No. SVV4110702
NC Zoo Polar Bear Exhibit
Randolph County
Designer's Certification
I, , as a duly registered in the
State of North Carolina, having been authorized to observe (periodically/ weekly/
full time) the construction of the project,
NC Zoo Polar Bear Exhibit
(Project Name)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 1 of 2

Stormwater Permit No. SW4110702
NC Zoo Polar Bear Exhibit
Randolph County
Certification Requirements:
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.
4, 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.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
S. All slopes are grassed with permanent vegetation, per the vegetation plan.
9. Vegetated slopes are no steeper than 3:1.
10. 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/or 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 vegetated shelf,
and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDENR-DWQ Regional Office
Page 2of2

DWQ USE ONLY
Date Received
Fee Paid (express only)
Permit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT PLAN REVISION APPLICATION FORM
This farm may be photocopied for use as an original
I. GENERAL INFORMATION
1. Stormwater Management Permit Number: SW4110702
2. Project Name: North Carolina Zoological Park - Polar Bear Exhibit Expansion
3. Permit Holder's name (specify the name of the corporation, individual, etc.):
North Carolina Zoological Park
4. Print Owner/Signing Official's name and title (person legally responsible for permit):
MaEy loan Pugh - Deputy Director _
5. Mailing Address for person listed in item 2 above:
4401 Zoo Parkway
City:Asheboro StateNC Zip:27205
Phone: [phone] Fax: [phone]
Email: maryjoan&nczoo.org
I1. PLAN REVISION INFORMATION
1. Summarize the plan revision proposed (attach additional pages if needed):
Relocate BioCell #1 from the Polar Bear Exhibit to the Africa Bus Parking Lot. The two biocells (A and B) in
the Africa Bus Parking Lot will treat the same amount of volume as planned for BioCell #1.
111. 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. The complete application package should be
submitted to the DWQ Office that issued the permit.
1. Please indicate that you have provided the following required information by initialing in the space provided
next to each item.
I'
• Original & I copy of the Plan Revision Application Form 0"
• Two (2) copies of revised plans (must be revisions of original approved plan sheet(s))
If ap1lying for Express review (only available in 20 coastal counties):
• Application fee of $500.00 (made payable to NCDENR)
VI. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 3) Jfa1-v Joan Pugh - Deputy Director
certify that I have authorized these plan revisions and that the information included on this plan revision
application is, to the best of my owledge, 507ect and complete.
Signature: Date:
Plan Revision Form Rev 13July2010 Page 1 of

Permit Number:
(to he provided by DWQ)
Drainage Area Number: 1
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 betaken 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:
Potentialproblems;
How I will remediate theproblem:
The entire BMP
Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
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,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe.
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade the swale if necessary to
swale (if applicable).
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
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
applicable).
Form SW401-Bioretention O&M-Rev.3
Page I of 4

BMP element:
The pretreatment area
The bioretention cell:
vegetation
The bioretention cell:
soils and mulch
Potential problems:
Plow is bypassing
pretreatment area and/or
gullies have formed.
Sediment has accumulated to
a depth greater than three
inches.
Erosion has occurred.
Weeds are present.
Best professional practices
show that pruning is needed
to maintain optimal plant
health.
Plants are dead, diseased or
dying.
Tree stakes/wires are present
six months after planting.
Mulch is breaking down or
has floated away.
Soils and/or mulch are
clogged with sediment.
An annual soil test shows that
pH has dropped or heavy
metals have accumulated in
the soil media.
_How I will remediate the problem:
Regrade if necessary to route all
flow to the pretreatment area.
Restabilize the area after grading.
Search for the source of the
sediment and remedy the problem if
possible. Remove the sediment and
restabilize the pretreatment area.
Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
_prevent future erosion problems.
Remove the weeds, preferably by
hand.
Prune according to best professional
practices.
Determine the source of the
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.
Remove tree stake/wires (which
can kill the tree if not removed).
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.
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
Dolomitic lime shall be applied as
recommended per the soil test and
toxic soils shall be removed,
disposed of properly and replaced
with new planting media.
Form SW40 I -Bioretention O&M-Rev.3 Page 2 of 4

BMP element:
Potentialproblems:
How I will remediate the roblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
if a licable)
The drop inlet
Clogging has occurred.
Clean out the drop inlet. Dispose of
the sediment off -site.
The drop inlet is damaged
Repair or re lace the dro2 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:NC 'Zoo Polar Bear Exhibit Expansion/Renovation
BMP drainage area number:I
Print name:Mary„ Joan Pugh
Title: Deputy Director
Address:4401 Zoo Parkway _
Phone
Signa
Date:
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.
1, a `1'� , a Notary Public for the State of
�a rA 6, County of Rdnolo% � _ , do hereby certify that
r�-
/Y) �, �ja�.r p„�bs personally appeared before me this t 7 -
day of and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
NOTARY K"
COlrmiioP S, 2Of7
SEAL
My commission expires
Form SW401-Bioretention l&M-Rev. 2 Page 4 of 4

Permit Number:
(to be provided by UWQ)
Drainage Area Number: 1
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:
Potentialproblems:
How I will remediate theproblem:
The entire BMP
'Trash/debris is present.
Remove the trash/debris.
The perimeter of the
Areas of bare soil and/or
Regrade the soil if necessary to
bioretention cell
erosive gullies have formed.
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,
The pipe is clogged (if
Unclog the pipe. Dispose of the
stone verge or swale
applicable).
sediment off -site.
The pipe is cracked or
Replace the pipe,
otherwise damaged (if
applicable).
Erosion is occurring in the
Regrade'the swale if necessary to
Swale (if applicable),
smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future eroblems with erosion.
Stone verge is clogged or
Remove sediment and clogged
covered in sediment (if
stone and replace with clean stone.
a licable .
Form SW401-Bioretention O&M-Rev.3 Page I of 4

(�.
BMP element:
Potentialproblems;
How I will remediate theproblem:
The pretreatment area
Flow is bypassing
Regrade if necessary to route all
pretreatment area and/or
flow to the pretreatment area.
gullies 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:
Best professional practices
Prune according to best professional
vegetation
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.
`free stakes/wires are present
Remove tree stake/wires (which
six months after planting,
can kill the tree if not removed).
The bioretention cell:
Mulch is breaking down or
Spot mulch if there are only random
soils and mulch
has floated away.
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
Determine the extent of the clogging
clogged with sediment.
- 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
possible.
An annual soil test shows that
Dolomitic lime shall be applied as
pH has dropped or heavy
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 planting media.
Form SW401-Bioretention O&M-Rev.3 Page 2 of 4

BMP element:
Potentialproblems:
How I will remediate theproblem:
The underdrain system
Clogging has occurred.
Wash out the underdrain system.
if applicable)
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 dro2 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 o l' 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:NC Zoo Polar Bear Exhibit Ex pansion/Renovation
BMP drainage area number:2
Print name:Mary Joar
Title:Deouty Director
Address:4401 Zoo Parkway
Phone
Signa
Date:
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.
a Notary Public for the State of
D�-t� ateol ne,- , County ofRl�d ila , do hereby certify that
,/144e,, "Tam personally appeared before me this P
day of �Ix- 7 e- , �, and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
Lsi P Sm a
MOTAM PUBLIC
%ow ca. [y NC
S, M13 r
SEAL
My commission expires L5� adl
Form SW401-Bioretention [&M-Rev. 2 Page 4 of

North Carolina Zoological Park.
David M. Junes, DVM, Zoo Director
' February8, 2012
Mr. Mike Randall
Environmental Engineer
NCDENR DWQ Stormwater Permitting Unit D@��j-'
1617 Mail Service Center
Raleigh, North Carolina 27699-1617 FEB - 9 2012
Subject: Revision to SW4110702 DENR- WATER QUALITY
Polar Bear Exhibit Expansion WE WosANDST4RMWATERFMCH
Relocation of BioCell #1 to Africa Bus Parking Lot
Dear Mr. Randall,
Kindly find attached the following documents for your consideration.
1. Stormwater Management Permit Plan Revision Application Form (signed and dated)
2. Two (2) copies of construction plans (24"x36")
The purpose of this revision is to relocate BioCell #1 from the Polar Bear Exhibit Expansion
to the Africa Bus Parking Lot. Two (2) new cells will be built to treat the same amount of
stormwater runoff volume that was planned for BioCell #1. The new cells (A and B) will
capture runoff from a portion of a bus parking lot instead of pedestrian walkways.
We would like to complete this project by April before visitor attendance increases
dramatically. If delays occur the project will be completed before the Polar Bear Exhibit
Expansion goes to State Construction for final closeout - November 2012.
Please let us know if you have any questions or need additional information.
Best Regards,
jGerryy1rkerA,PE
Phone: [phone]
Email: [e-mail]
c: Mary Joan Pugh - Deputy Director
Attachments
Deportment of Environment ACCREDITED BY TILE
North Carolina Zoo coarrect your life to wil(Ili fe and Novel Resources ASSOCIATION
Beverly Eaves Perdue, Governor OF ZOOS
4401 Zoo Parkway • Asheboro, N.C. 27205 • 336.879.7000 • nezoo.org Dee Freeman, secretary AQUARIUMS

DWQ USE ONLY
Date Received Fee Paid
Permit Number
- II —11 r1
6W 110D'-L'
Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph 1I - Post Co struction
(select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ M mt Plan:
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This farm may be photocopied for use as an original
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.):
NC Zoo Polar Bear Exhibit Expansion/Renovation
2. Location of Project (street address):
4401 Zoo Parkway
City:Asheboro
County:Randolph Zip:27205
3. Directions to project (from nearest major intersection):
From Downtown Asheboro, NC 42 East, Turn Right onto Old Humble Mill Road, Turn left onto Old Cox
Road, Turn Left on Zoo Parkwa
4. Latitude:35° 37' 45.72" N Longitude:79° 45' 47.08" W of the ain enJt0bc4tcJtF Wioj ct.
11. PERMIT INFORMATION: DENR - WA R
IN!rmde a qbwwaw Bra
1.a.Specify whether project is (check one): ®New ❑Modification
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)n/a , 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, n/a ^
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: 2 ac of Disturbed Area
❑NPDES Industrial Stormwater 0404/401 Permit: Proposed Impacts 220LF-Stream & 1,075SF-Wetlands
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:Other Permits are Currently in Review
Fonn S W U- l 01 Version 07Jun2010 Page 1 of 6

Ill. 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: North Carolina Zoological Authority
Signing Official & Title:Mary loan Pugh, Deputy Director
b.Contact information for person listed in item la above:
Street Address:4401 Zoo Parkway
City:Asheboro State:NC Zip:27205
Mailing Address (if applicable):4401 Zoo Parkway
City:Asheboro
Phone: (336 )_ 879-7110 _
Email mar 'oan. u h®nczoo.or
State:NC Zip:27205
Fax: [phone]
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 Owners name and title below, if you are the lessee, purchaser or developer. (This is the
person who ownsalie property that the project is located on):
Property Owner/ Organization: n/a
Signing Official & Title:n/a
b.Contact information for person listed in item 2a above:
Street Address:n/a
City:n/a T
Mailing Address (if applicable):n a
City:n a
Phone: (n/a )
Email:n/a
Staten/a Zip:n/a
Staten/a Zip:n
Fax: (n/a
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: n/a
Signing Official & TitIe:n/a _
b.Contact information for person listed in item 3a above:
Mailing Address:n/a
City:n/a Staten/ a Zip:n/a
Form SWU-101 Version 07Jun2010 Page 2 of 7

Phone: (n
Fax:
Email:n/a
4. Local jurisdiction for building permits: n/a
Point of Contact:n/a
IV. PROJECT INFORMATION
Phone #: (n/a ) n/a_
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Two bioretention areas are being installed to treat an equivalent impervious area that is located upstream on
site just above the project site area.
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 Cape Near River basin.
4. Total Property Area: 879.5 acres 5. Total Coastal Wetlands Area: n/a acres
6. Total Surface Water Area: n/a Do not have
any information on the total surface water area for the entire zoo acres
Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area,:879.5 acres
+ Total project area shall be calculated to exclude the followinbb the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal HigI Water (NHW) line or Mean High Water
(MH1M line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BiIA). 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 = n/a
9. How many drainage areas does the project have?2 (For high density, count 7 for each proposed engineered
stormwater BMP. For low density and other projects, use I 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.
Form SWU-101 Version 073un2010 Page 3 of 7

Basin Information -
Drainage Area 1
Drainage Area 2
Drainage Area
Drainage Area
Receiving Stream Name
Panther Creek
Panther Creek
Stream Class *
C
C
Stream Index Number *
17-22-5
17-22-5
Total Drainage Area (sf)
17,950 sf
54,970 sf
On -site Drainage Area (sf)
17,950 sf
54,970 sf
Off -site Drainage Area (so
0
0
Proposed Impervious Area** (so
0
0
Impervious Area** total
0
0
Impervious Surface Area
Draina a Area 1
Draina a Area 2
Draina a Area
Draina a Area _
On -site Buildings/Lots (so
0
0
On -site Streets (so
0
0
On -site Parking (so
0
0
On -site Sidewalks (so
0
0
Other on -site (so
7,410 sf
14,380 sf
Future (so
2,180 sf
5,660 sf
Off -site (sf)
0
0
Existing BUA*** (sf)
7,410 sf
14,380 sf
Total (so:
9,590
20,040 sf
Stream Class and Index Number can be determined at: http//portal.ncdenr.orgfwebAv qZPs/csu�classihcations
"* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
'Report only that amount of existing B UA that will remain after development. Do not report any existing BUA 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. n/a-no offsite
Projects in Union County: Contact DWQ 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 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 http//_portal.ncdenr.orLweb/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 fromhttp;//12ortal.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 athttp-./Iportal.ncdenr.org/­web/`wq/ws/su/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 http://portalncdenr.org/web/wq/ws/su/statesw/forms_. docs.
Initials
1. Original and one copy of the Stormwater Management Permit Application Form.�,.n
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 3rn
http://www.envhelp.org/pages/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.)
Form SWU-101 Version 07Jun2010 Page 4 of 7

5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor :!2[yr�
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 _ h�
receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the
mile radius on the map.
7. Sealed, signed and dated calculations.
8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: . yr
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.
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"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, [phone].)
10. A copy of the most current property deed. Deed book: 1064 Page No: 259 *?%Vv%-
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 1a, 2a, and/or 3a per 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.
http:ZZwww.secretary.state.nc.us/Corporations/­CSearch.aspx
V1I. 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
http:ZZRortal.ncdenr.org/webjwq/"ws/su/stateswZforms does. 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.
Form SWU-101 Version 07Jun2010 Page 5 of 7

VTII. 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:Steven Miller, PE
Consulting Firm: CLH Design P.A. _
Mailing Address:400 Regency Forest Drive, Suite 120
City:Cary
Phone: (919 ) 319-6716
Email:smiller®clhdesignpa.com
State:NC Zip:27518
Fax: (919 ) 319-7516
IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
1, (print or type name of person fisted in Contact Information, item 2a) , certify that 1
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item Ia) with (print or type 'name of organization listed in
Contact Information, item 1a) 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.
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 I , and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
SEAL
My commission expires
Form SWU-101 Version 07Jun2010 Page 6 of 7

X. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in Contact Information, iteru T a) Mary Joan_ Pugh
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 15 " NCAC 2H .1000, SL 2006-246 (Ph. II -Post Construction) or SL 2008-211.
Signature: ,Date: i7
1, (� l , a Notary Public far the State of �U"f '/.,." -County of
do hereby certify that personally appeared
before me this day of 01 + , and acknowledge the due execution of the application for
a stormwater permit. Witness my hand and official seal,
. M
NWARY PUBLIC
RaWDV Canny NC
*C&W=WE0M$AuquS152Q13
SEAL
My commission expires�[�7
Form SWU-101 Version 07Jun2010 Page 7 of 7

SEDIMENTATION POLLUTION CONTROL ACT
EXPRESS PERMITTING OPITION-08012007
VV
No person may initiate any land -disturbing activity on one or more acres as covered by the Act bef&e`�ttils'"V�
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place NIA in the blank.)
Part A.
1. Project Name NC Zoo Polar Bear Exhibit Expansion/Renovation
2. Location of land -disturbing activity, County Randolph City or Township Asheboro
Highway/Street 4401 _Zoo Parkway Latitude 35.630221 Longitude-79.762199
3. Approximate date land -disturbing activity will commence: August 2011
4. Purpose of development (residential, commercial, industrial, institutional, etc.):Rec./Educational (Zoo)
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 2 acres
6. Amount of fee enclosed: $ 630 The Express Permitting application fee is a dual charge.
The normal fee of $65.00 per acre is assessed without a ceiling amount. In addition, the Express
Permitting supplement is $250.00 per acre up to eight acres, after which the Express Permitting
supplemental fee is a fixed $2,000.00 (Example: 9 acres total is $2,585). NOTE: Both fees are
rounded up to the next whole acre and need to be paid by separate checks to NCDENR.
7. Has an erosion and sediment control plan been filed? Yes No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name_ Bobby Smith _ _ E-mail Address [e-mail]4
Telephone [phone] Cell # n/a Fax # [phone]
9. Landowner(s) of Record (attach accompanied page to list additional owners):
North Carolina Zoological Authority _ 336-879-7514 336-879-2891
Name Telephone Fax Number
4401 Zoo Parkway — _ _ _ _ 4401 Zoo Parkway_ .
Current Mailing Address Current Street Address
Asheboro NC 27205 Asheboro NC 27205
City State Zip City State Zip
10. Deed Book No. 1064 Page No, 259 Provide a copy of the most current deed.
Part B.
1. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a
comprehensive list of all responsible parties an an attached sheet):
North Carolina Zoological Park - NCDENR maryjoan,pu-"h-nczoo.org
Name E-mail Address
4401 Zoo Parkway 4401 Zoo Parkway
Current Mailing Address Current Street Address
Asheboro NC 27205 Asheboro NC 27205
City State Zip City State Zip
Telephone [phone] Fax Number 336-879-2891

(a) It the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name E-mail Address
Current Mailing Address Current Street Address
City State Zip City State
Telephone
Fax Number
Zip
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
nla
Name of Registered Agent
Current Mailing Address
City
Telephone
E-mail Address
Current Street Address
State Zip City
Fax Number
State Zip
(c) In order to facilitate Express Permitting, it is necessary to be able to contact the Engineer or other
consultant who can assist in providing any necessary information regarding the plan and its preparation:
Engineering Firm or other consultant E-mail Address
Individual contact person (type or print) Telephone Fax Number
The above information is true and correct to the best of my knowledge and belief and was provided by me
under oath (This form must be signed by the Financially Responsible Person if an individual or his attorney -in -
fact, or if not an individual, by an officer, director, partner, or registered agent with. the authority to execute
instruments for the Financially Responsible Person). I agree to provide corrected information should there be
any change in the information provided herein.
Type RI pri narrA � Title dr Aut ority
&Sao E [_
Date
I ?7 f► C'�- `f 1 "! J'i' a Notary Public oft County of nad oL
State of North Carolina, hereby certify that"Iedg
-� �. appeared personally
before me this day and being duly swornlaccthatthe above for as executed by him.
Witness my hand and notarial seal, this day ofqf 20�
t 1U_�Zj
Notary L
ALESI MILLER
NOTARY PUBLIC My commission expires
RANDOLPH COUNTY, NC
_�My Commission Exo_Ka_�1_2��•- .

N.C. Uofll. of f,fJ
R
tJl JUN 2 V 2011 r
V�inStUn$BCf77
n SOA
__0ional OffiCe� Y
NCDENDU%
North Carolina Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
James D. Simons, PG, PE Beverly Eaves Perdue, Governor
Director and State Geologist Dee Freeman, Secretary
,tune 27, 2011
LETTER OF APPROVAL
NC Zoological Association
ATTN :- Maryjoan Pugh
4401 Zoo Parkway
Asheboro, NC 27205
RE: Project Name: NC Zoo Polar Bear Exhibit
Project ID: RANDO-2011-029
County: Randolph, Zoo Pkwy, Asheboro
River Basin: Cape Fear
Submitted By: CLH
Date Received by LQS: June 22, 2011
Plan Type: Express New
Dear Sir or Madam:
JUN 3 p 2011
PfHR -
ebenfta cr..._ _---
Acres Approved: 2.00
Stream Classification: Other
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to be
acceptable and hereby issue this Letter of Approval. The enclosed Certificate of Approval must be
posted at -the job site. This plan approval shall expire three (3) years following the date of approval,
if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 4B .0129.
Title 15A NCAC 4B .0118(a) requires that a copy of the approved erosion control plan be on file at
the job site. Also, this letter gives the notice required by G.S. 113A-61,1(a) of our right of periodic
inspection to insure compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring protection
of existing natural resources and adjoining properties. If, following the commencement of this
project, the erosion and sedimentation control plan is inadequate to meet the requirements of the
Sedimentation Pollution Control Act of 1973 (North Carolina General Statute I I3A-51 through 66),
this office may require revisions to the plan and implementation of the revisions to insure
compliance with the Act.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and State
Winston-Salem Regional Office
585 Waughtown Street, Winston-Salem, North Carolina 27107 Phone: [phone] / Fax: (336)

Letter of Approval
Project :- NC Zoo Polar Bear Exhibit
June 27, 2011
Page 2 of 2
water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may
also apply to this land -disturbing activity. This approval does not supersede any other permit or
approval.
Please be aware that your project will be covcred by the enclosed NPDES General Stormwater
Permit NCGOI OOOO (Construction Activities). You should first become familiar with all of the
requirements for compliance with the enclosed general permit.
Please note that this approval is based in part on the accuracy of the information provided in the
Financial Responsibility Form, which you provided. You are requested to file an amended form if
there is any change in the information included on the form. In addition, it would be helpful if you
notify this'office of the proposed starting date for this project. Please notify us if you plan to have a
preconstruction conference.
. " .Your cooperation is appreciated.
Sincerely
r.
r
Scott Sink
Assistant Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
NPDES Permit
cc: CLH Design
400 Regency Forest Dr., Suite 120
Cary, NC 27518
W SRO-D W Q

CERTIFICATE. OF PLAN'APPROVAL
--that:qn....erosi The posting :of this •certificate..,certifies : on and sedimentation control plan has been sedi I
appTqyed,for this project by..tlieNorth :Carolina ,-Department of Environment and Natural Resources
in . accordance with. North , Ca'r'.olina-,-;L Ge'neraf-Statut,eL 113A — 57 (4) and 113A — 54 (d) (4) and
North -Carolina Administrative. Co'de-1.-Title. 15A Chapter, 4B.0107 (c). This certificate must be
posted- at the primary -entrance of thej6b,.,"siie'.b6foi,'ec',onstruction begins and until establishment of
permanent grounde over.: as: required -by:' 'i-th.-Caro'liha i Administrative Code, Title 15A, Chapter
I IV
41B..0127 (b).
-AM
VOM
Date of Plan Approval
M
'Locaiion-
- - A-' T. r-4 A-:,
'.-'NCDENR
Engineer

Permit Number:
(to be provided by DWO)
of warFq
ALT o� aq
r
� y
NCDENR Y
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
Project name NO Zoological Park Polar Bear Exhibit Expansion/Renovation
Contact name Steve Miller, PE
Phone number 919-319-6716
Date June t, 2011
Drainage area number 1
II. DESIGN INFORMATION
Site Characteristics
Drainage area
17,950f12
,Itkl Milt,,
Impervious area
9,590 tiZ
CAR0-,,
Percent impervious
53.4% %
,,.`� D��N
Design rainfall depth
1.0 inch
Peak Flow Calculations
— E L —
e Mc•,r �
Is prelpost control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
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
Cell Dimensions
Ponding depth of water
Ponding depth of water
Surface area of the top of the bioretention cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil.•
Soil permeability
Planting media soil:
Soil permeability
Soil composition
• Sand (by volume)
• Fines (by volume)
�1tm►1)
1 in
4.6 in/hr
0.520 ft'/sec
0.970 ft sec
0.450 ft3lsec
559.0 ft3
990.0It3 OK
ft'
ft3
ft3
0 ft3
k3
12 inches OK
1.00 ft
1,170.0 ftz
OK
ft
It
14 ft
OK
12 hr
OK
36 hr
OK
48 hr
0.10 in/hr
1.00 irdhr
85%
10%
Insufficient. Increase infiltration rate or include underdrains.
OK
OK
OK
Form SW401-Bioretention-Rev.8
June 25, 2010 Parts I and 11. Design Summary, Page 1 of 3

% Organic (by volume) 5% OK
Total: 100%
Permit Number:
(to be provided by OWO)
Phosphorus Index (P-Index) of media
20 (unitless) OK
Form SW401.Bioretention-Rev.8
June 25, 2010 Parts I and it. Design Summary, Page 2 of 3

Permit Number:
(to be provided by DWO)
Basin Elevations
Temporary pool elevation
Type of bioretention cell (answer 'Y" to only one of the two following
questions):
Is this a grassed cell?
Is this a cell with trees/shrubs?
Planting elevation (top of the mulch or grass sod layer)
Depth of mulch
Bottom of the planting media soil
Planting media depth
Depth of washed sand below planting media soil
Are underdrains being installed?
How many clean out pipes are being installed?
What factor of safety is used for sizing the underdrains? (See
BMP Manual Section 12.3.6)
Additional distance between the bottom of the planting media and
the bottom of the cell to account for underdrains
Bottom of the cell required
SHWT elevation
Distance from bottom to SHWT
Internal Water Storage Zone (IWS)
Does the design include IWS
Elevation of the top of the upturned elbow
Separation of IWS and Surface
Planting Plan
Number of tree species
Number of shrub species
Number of herbaceous groundcover species
Additional Information
Does volume in excess of the design volume bypass the
bioretention cell?
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 30 feet from surface waters (50 feet if
SA waters)?
Is the BMP localed at least 100 feet from water supply wells?
Are the vegetated side slopes equal to or less than 3:1?
Is the BMP located in a proposed drainage easement with access
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
Is the area surrounding the cell likely to undergo development in the
future?
Are the slopes draining to the bioretention cell greater than 20%?
Is the drainage area permanently stabilized?
Pretreatment Used
(Indicate Type Used with an 'X" in the shaded cell)
Gravel and grass
(8'inches gravel followed by 3-5 it of grass)
Grassed swale
Forebay
Other
738.00 fmsl
N (Y or N)
Y (Y or N) OK media depth
737 fmsl
4 inches OK
733.67 fmsl
3.33 it
Y (Y or N)
4 OK
10 OK
1 It
732.34 fmsl
730 fmsl
2.34 it OK
N (Y or N)
fmsl
737 it
2
5
10 OK
Y (Y or N) OK
N (Y or N) Excess volume must pass through filter.
(Y or N)
Y (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
Y (Y or N)
OK
0.5 ftlsec
OK
N (Y or N) OK
N (Y or N) OK
Y (Y or N) OK
x
OK
Form SW401-Bioretentior-Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 3 of 3

Permit Number;
(to be provided by DWO)
Q�OF W A 1'FRQG
r
-y
NCDENR Y
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
Project name NC Zoological Park Polar Bear Exhibit ExpansiorVRenovation
Contact name Steve Miller, PE
Phone number 919.319-6716
Date June 1, 2011
Drainage area number 2
ll. DESIGN INFORMATION
Site Characteristics
Drainage area 54,970 h2
Impervious area 20,040 rye %.1�++�Hr AR!!t���
Percent impervious 36.5°/° °/° ��� Ctl
Design rainfall depth 1.0 inch C�� •• F •• •• /
Peak Flow Calculations
Is prelpost control of the 1-yr, 24-hr peak flow required?
1-yr, 24-hr runoff depth
1-yr, 24-hr intensity
Pre -development 1-yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak control
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
Cell Dimensions
Ponding depth of water
Ponding depth of water
Surface area of the top of the bioretention cell
Length:
Width:
-or- Radius
Media and Soils Summary
Drawdown time, ponded volume
Drawdown time, to 24 inches below surface
Drawdown time, total:
In -situ soil:
Soil permeability
Planting media soil;
Soil permeability
Soil composition
• Sand (by volume)
% Fines (by volume)
% Organic (by volume)
Phosphorus Index (P-Index) of media
N (Y or NJ
S A� _
1 in
U?�625
4.6 inlhr
( ' rn `ttGQz: !L
1.460 ft3 Isec
2.730
w �i •+••••'• ��.��
ft3/sec
1.270 ft Isec
1,597.0 f13
1,770.0 f13 OK
_ ft3
_ ft3
_ ft3
0 ft3
ft3
12 inches
OK
1.00 ft
2,300.0 to
OK
45 ft
OK
35 ft
OK
ft
12 hr OK
36 hr OK
48 hr
0.10 in/hr Insufficient. Increase infiltration rate or include underdrains.
1.00 in/hr OK
85% OK
10% OK
5% OK
Total: 100%
20 (unitless) OK
Form SW401-Bioretention-Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 1 o1 2

Permit Number:
(to be provided by D WQ)
Basin Elevations
Temporary pool elevation
738.00 fmsl
Type of bioretention cell (answer "Y" to only one of the two following
questions);
Is this a grassed cell?
N
(Y or N)
Is this a cell with trees/shrubs?
Y
(Y or N)
OK media depth
Planting elevation (top of the mulch or grass sod layer)
737 fmsl
Depth of mulch
4 inches
OK
Bottom of the planting media soil
733.67 fmsl
Planting media depth
3.33 It
Depth of washed sand below planting media soil
0.33 ft
Are underdrains being installed?
Y
(Y or N)
How many clean out pipes are being installed?
7
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
732.34 fmsl
SHWT elevation
730 fmsl
Distance from bottom to SHWT
2.34 ft
OK
Internal Water Storage Zone (IWS)
Does the design include IWS
N
(Y or N)
Elevation of the top of the upturned elbow
fmsi
Separation of IWS and Surface
737 ft
Planting Plan
Number of tree species
3
Number of shrub species
5
Number of herbaceous groundcover species
10
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
N
{Y or N}
Excess volume must pass through filter,
through a vegetated filter?
What is the length of the vegetated filter?
It
Does the design use a level spreader to evenly distribute flow?
(Y or N)
Is the BMP located at least 30 feet from surface waters (50 feet it
Y
(Y or N)
OK
SA waters)?
Is the BMP Iocaled 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 to
Y
(Y or N)
OK
a public Right of Way (ROW)?
Inlet velocity (from treatment system)
0.5 ft/sec
OK
Is the area surrounding the celE likely to undergo development in the
N
(Y or N)
OK
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
(8'inches gravel followed by 3.5 It of grass)
X
Grassed swale
OK
Forebay
Other
Form SW401-Dioretention-Rev.8
June 25, 2010 Parts I and H. Design Summary, Page 2 of 2

w �j�r�rrr
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Energy, Mineral, and Land Resources
Land Quality Section
Tracy E. Davis. PE, CPM
Director
September 3, 2013
CERTIFIED MAIL #7012 2920 0000 3656 1493
RETURN RECEIPT REQUESTED
Ms. Mary Joan Pugh
North Carolina Zoological Park
4401 Zoo Parkway
Asheboro, NC 27205
Pat McCrory, Governor
John E. Skvarla, ill, Secretary
Subject: NOTICE OF INSPECTIONS
NC Zoo African Plains Barns and Polar Bear Exhibit Expansion
Permit Nos. SW4100801 and SW4110702
Randolph County
Dear Ms. Pugh:
On August 29, 2013, Aana Taylor -Smith and Sue White of the Winston-Salem Regional Office of the Division of
Energy, Mineral, and Land Resources {DEMLR} inspected the African Plains Barns and Polar Bear Exhibit
Expansion at the NC Zoo in Randolph County. These inspections were conducted. to determine compliance with
Stormwater Management Permit Numbers SW4100801 issued on October 20, 2010, and SW4110702 issued on
July 18, 2011. DEMLR file review and site inspection revealed that both sites are compliant with the terms and
conditions of the permits. Please find copies of the completed form entitled "Stormwater Inspection Report" for
each site attached to this letter.
In 2011, House Bill 492 was signed into law, which determined that Randolph County is not subject to the
requirements for development covered by the State Stormwater permits described above. Therefore, you may
request to have Stormwater Management Permit Numbers SW4100901 and SW4110702 rescinded. If you wish to
rescind those permits, please send a written rescission request for each permit to the following address:
Wetlands and Stormwater Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Please be advised that you are required to comply with the terms, conditions and limitations of your Stormwater
Management Permits under Title 15A North Carolina Administrative Code 21-1 .1003 and North Carolina General
Statute 143-214.7, including operation and maintenance of your permitted stormwater systems, for as long as the
permits are in effect.
If the projects have changed name, ownership or mailing address, a fonnal change of name/ownership form must
be submitted to DEMLR within 30 calendar days detailing the change. Please provide the name, mailing address
and phone number of the person or entity that is now responsible for these permits.
Winston-Salem Regional Office
585 Waughtown Street, Winston-Salem, NC 27101 . Phone: [phone] FAX: [phone]

North Carolina Zoological Park
09/03/2013
Page 2 of 2
Thank you for your assistance and cooperation during
acivil assessment this
inspection.tof up to $25,000.00 per day
Stormwater Management Permit may be subject t penalty
for each violation. if you have any questions, comments, or nee a sistancWhitee with
or a (33ta ding nyOaspect of
your permit, please do not hesitate to contact Ms. Tay
lor-Smith, Ms.
■ Complete items 1, 2, and 3. Also complete
item 4 if Restricted Delivery is desired.
■ Print your name and address on the reverse
so that we can return the card to you.
0 Attach this card to the back of the mailpiece,
or on the front if space permits.
1. Article Addressed to:
{ ' Ms. Mary`Joa a Pugh'•
' North.Carolina Zoological Park
4401 Z_oo-Parkway
Asheboro,.NC 27205`'' ''
Arf[n6 KI—k—__ -_ --- _
7012 2920 0000 3656 1493
PS Form 3811, February 2004
Sincerely,
Matthew E. Gantt, PE
Regional Engineer
Land Quality Section
A. Signature 4
X (n1 Agent
Addre
Recggived by (Pr' ted. fVame) C. Dat of DP
s\d
D. Is delivery aM ress diift. '-ent from item f ? Yes
if YES, enter delivery a t-idress below: ❑ No
3. ISIVice Type
rtified Mail ❑
E1 Registered ❑
❑ Insured Mail. Cf
4. Restricted Delivery? (E
Domestic Return Receipt
NIL
E : press Mail
R+i
turn Receipt for Merchandise ;
'C 9D.
rtr.,
a Fee) ©Yes
WtIl1L3-702—
J&595-02-MAUD i
a „ U.S. Posta4 ServiceTt.,
CERTIFIED MAIL,.RECEIPT �
' • (Domestic MaiFpnly, No Insurance Coverage Provided)
For deilvery information visit our webstte et wvrvr.usps.come
L
.1]
rl
$
SW LI1�i {•�•
Swql to -IL
Certified Fee
C3
Postmark
C3
©
Retum Receipt Fee
(Endorsement Required)
Here
O
Restricted neil,rery tree
Ar..%-
��'t C-
p
(Endomse+nent Required)
ru
sOtw P
not
Ms. Mary Joan Hugh
ru
r ° North Carolina Zoological Park
0
SgB�2 4401 Zoo Parkway
r`
°rPos Asheboro, NC 27205-
ciiy, Sra

Compliance Inspection Report
Permit: SW4100801 Effective: 10/20/10 Expiration:
County: Randolph
Region: Winston-Salem
Contact Person: Mary Joan Pugh Title: Chief of staff
Directions to Project:
Type of Project: State Stormwater - Low Density
Drain Areas: 001 - (Panther Creek) (03-06-09) { C)
On -Site Representative(s):
Related Permits:
Inspection Date: 08/2912013 EntryTime: 10:00 AM
Primary Inspector: Aana Taylor -Smith
Secondary Inspector(s):
Sue White
Reason for inspection: Routine
Permit Inspection Type: State Stormwater
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
E State Stormwater
(See attachment summary) .
Owner: North Carolina Zoological Park
Project: NC zoo African Plains Barns
4401 Zoo Pkwy
Asheboro NC 27205
Phone: [phone]
Exit Time: 11:00 AM
Phone: [phone]
Phone:
Inspection Type: Compliance Evaluation
Page: 1

Permit: SW4100801 Owner - Project: North Carolina Zoological Park
Inspection Date: 08129/2013 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Randolph County un-tipped by HB 492 - permittee may wish to consider requesting permit rescission
File Review
Yes
No NA
NE
Is the permit active?
■
❑ ❑
❑
Signed copy of the Engineer's certification is in the file?
■
❑ ❑
Q
Signed copy of the Operation & Maintenance Agreement is in the file?
■
❑ ❑
❑
Copy of the recorded deed restrictions is in the file?
■
❑ ❑
❑
Comment: Randolph County un-tipped by HB 492 - permittee may wish to consider
requesting permit rescission.
Built Upon Area Yes No NA NE
Is the site BUA constructed as per the permit and approval plans? ■ ❑ ❑ ❑
Is the drainage area as per the permit and approved plans? ■ ❑ ❑ ❑
Is the SUA (as permitted) graded such that the runoff drains to the system? ■ Cl ❑ ❑
Comment:
Are the SW measures constructed as per the approved plans? ■ Cl ❑ ❑
Are the inlets located per the approved plans? ■ ❑ ❑ ❑
Are the outlet structures located per the approved plans? ■ ❑ ❑ ❑
Comment:
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ■ ❑ ❑ ❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWO ■ ❑ ❑ ❑
upon request?
Comment:
Other Permit Conditions Yes No NA NE
Is the site compliant with other conditions of the permit? ■ ❑ ❑ ❑
Comment:
Other WQ Issues Yes No NA NE
Is the site compliant with other water quality issues as noted during the inspection? ■ ❑ ❑ ❑
Comment:
Page: 2

Compliance Inspection Report
Permit: SW4110702 Effective: 07/18/11 Expiration: 07/17/21 Owner: NC Zoological Authority
Project: NC Zoo Polar Bear Exhibit
Expansion/Renovation
County: Randolph 4401 Zoo Pkwy
Region: Winston-Salem
Contact Person: Mary Joan Pugh Title:
Directions to Project:
Type of Project: State Stormwater - General Permit
Drain Areas:
On -Site Representative(s):
Related Permits:
Asheboro NC 27205
Phone: [phone]
Inspection Date: 08/2912013 EntryTime: 09•.00 AM Exit Time: 1a00 AM
Primary Inspector: Aana Taylor -Smith
Secondary Inspector(s):
Sue White
Reason for Inspection: Routine
Permit Inspection Type: State Stormwater
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
E State Stormwater
(See attachment summary)
Phone: [phone]
Phone:
Inspection Type: Compliance Evaluation
Page: 1

Permit: SW4110702 Owner - Project: NC Zoological Authority
Inspection Date: 08/29/2013 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Randolph County un-tipped by HS 492 - permittee may wish to consider requesting permit rescission.
Biocells not constructed. This was recommended by Mike Randall because Randolph County was un-tipped and biocells
as designed were not practical for site.
Page: 2

Permit: SW4110702 Owner - Project: NC Zoological Authority
Inspection Date: 08/29/2013 Inspection Type: Compliance Evaluation Reason for Visit: Routine
File Review Yes No NA NE
Is the permit active? ■ ❑ ❑ ❑
Signed copy of the Engineer's certification is in the file? ❑ ❑ ■ ❑
Signed copy of the Operation & Maintenance Agreement is in the file? 0 ❑ ❑ ❑
Copy of the recorded deed restrictions is in the file? 001111
Comment: Randolph County un-tipped by HB 492 - permittee may wish to consider
requesting permit rescission.
Built Upon Area
Yes No
NA
NE
Is the site BUA constructed as per the permit and approval plans?
■ ❑
❑
❑
Is the drainage area as per the permit and approved plans?
■ ❑
❑
❑
Is the BUA (as permitted) graded such that the runoff drains to the system?
■ ❑
❑
❑
Comment:
SW Measures Yes No NA NE
Are the SW measures constructed as per the approved plans? ■ ❑ ❑ ❑
Are the inlets located per the approved plans? ■ ❑ ❑ Cl
Are the outlet structures located per the approved plans? E ❑ ❑ ❑
Comment: Biocells not constructed. This was recommended by Mike Randall because
Randolph County was un-tipped and biocells as designed were not practical for site.
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ❑ ❑ ■ ❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ■ ❑
upon request?
Comment:
Other Permit Conditions Yes No NA NE
Is the site compliant with other conditions of the permit?
Comment:
Other WQ Issues
Is the site compliant with other water quality issues as noted during the inspection?
Comment:
■ ❑ ❑ 0
Page: 3

State Stormwater Inspection Report
General
Project Name:
Permit No: SW '-1 1 1 o�i o2
Expiration Date: —1 -Z o2I
Contact Person: C—t c y� �cRyu.a�r
Phone Dumber: a-, -1 _ -1S 15
Inspection Type: o,�r
Inspection Date: 2� t
Time In: (09 &0
Time Out:
Current Weather:
Recent Rain (Date)?
Rain — in
Location
Facility Address / Location: , p 1 Zo o Pa-t'1C.uoaA -
City: f\Sln2,bl�Yo �'p 2`t p - County: �� Lat: "N Long: - "Vv
Permit Information
Rule Subject to (circle ooze): 1988 Coastal Rule
1995 Coastal Rule
2008 Coastal Rule Session Law 2006-246
Goose Creek
High Quality Waters
Outstanding Resource Waters
Density (circle on(,,):
igh (HD Low (LD)
Stormwater Best Management
Practices (BMPs) (insert number of each). -
Wet Ponds
Infiltration Basins
Infiltration Trenches
LD Swales Stormwater Wetlands
Dry Ponds 2
Bioretention CeitS
Permeable Pavement
Sand filters (circle one) Open Closed
Cistern
Level Spreader/Filter Strip
Other (specify):
File Review
Yes No NIA NIE
I. Is the permit active?
2. Signed Engineer's Certification on file?
3. Signed Operation and Maintenance agreement on file?
4. Recorded Deed Restrictions on file?
Site Visit: Built Uoon Area iBUAI
Yes No NIA N1E
5. BUA is constructed and consistent with the Eermit. requirements?
6. BUA aspermitted) is graded such that the runoff drains to the system? (high density only)
7. Drainage area is consistent withpermit? i.e. no un ermitted drainage to the SW BMPs
8. Drainage area is stabilized? to reduce risk of sedimentation to the SW BMPs
Site Visit: Stormwater BMPs Yes No NIA NIE
9. Stormwater BMPs are located per the approvedplans?
10. Stormwater BMPs have dimensions (ea. length, width, area) matching the approvedplans?
11. Stormwater BMPs are constructed_per the approved plans?
Site Visit: Oneration and Maintenance
Yes No NIA NIE
12. Access points to the site are clear and well maintained?
13. Trash has been removed as needed?
14. Excessive landscape debris (grass clippings, leaves, etc) is controlled?
15, Stormwater BMPs being operated and maintained as per the permit requirements?
16. Ins ection and Maintenance records are available for inspection? (high density only, 1995 —present only)
Site Visit: Other Permit Conditions Yes No NIA NIE
17. is the site compliant with other conditions of thepermit?
Site Visit: Other Water Quality Issues Yes No NIA NIE
18. Is the site compliant with other water quality issues as noted during the inspection?
State Stormwater Inspection Report, Version 3.0_3-09 Page 1 of 2

State Stormwater Inspection Report
Pictures (some of the pictures taken during the site visit)
Compliance Status E Compliant ❑ Non -Compliant
Letter Sent (circle one): Yes No Letter type: CEI NOV NOVRE Other
Date Sent: Reference Number:
Inspector Name and Signature: Date:
w 1 l l Boors
\JP Sfi b Ua e 0Lv,6Q = OoJwh-, w i 1 I Vv4 vt otyou Y1
sipYnn Mljo v) v\-UMS vy-o+C ,4-p-r's
!: t oSiCsn Gc�rul blOLAI\ e�- Ov ey vr01 wDu�i u n l�wx-ri r
�P l v�Gl V)�2, PLAut JI Y) P 1 OZQ ho-t- hWOUCA Ve- r 1UI , V _avviz�d 1
+'sb vO vtffvvUt
'rOj h G(.t.! 1-e Dh top V-.DY'n C,U U 1AA-e_ ho <!
State Stormwater Inspection Report, Version 3,0_3-09 Page 2 of 2

BIORETENTION CELL: O & M Inspection Checklist
INLET and PERIMETER
1. Inlet and Perimeter are free of erosive gullies and bare soil areas:
❑
❑
❑
❑
2. Inlet device (swale, pipe, stone verge) is free of erosion, damage or clogs:
❑
❑
❑
❑
3. Weir heights appear to match approved plans:
❑
❑
❑
❑
PRETREATMENT
4. Flow is entering pretreatment area (not being bypassed):
❑
❑
❑
❑
5. Pretreatment area is free of erosion:
❑
❑
❑
❑
6. Pretreatment area is free of excessive sediment or clogs:
❑
❑
❑
❑
MAIN TREATMENT AREA
7. Side slopes are 3:1 or less:
❑
❑
❑
❑
8. The under drain system is free flowing and free of clogs (if applicable):
❑
❑
❑
❑
9. Cleanout(s) and cap is provided for the under drain as per the approved plans:
❑
❑
❑
❑
10. Heavy equipment has not been driven into the cell:
❑
❑
❑
❑
11. Surface is free of piles of heavy materials (piles of mulch, etc):
❑
❑
❑
❑
12. Ponding depth is 9-12 inches after rain:
❑
❑
❑
❑
13. All dimensions are >=10ft.:
❑
❑
❑
❑
SOIL/MULCH and VEGETATION
14. Plants are healthy and being maintained:
❑
❑
❑
❑
15. The proper amount and type of vegetation is present in the cell:
❑
❑
❑
❑
16. Mulch is in good condition (has not broken down or floated/migrated towards the outlet):
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17. Surface if free of excessive sediment and clogs:
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18. Trees are free of stakes/wires > 6 months after planting:
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19. The annual soil test shows the proper pH and absence of heavy metal accumulation:
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OUTLET
20. Outlet is free of evidence of improper drainage (no standing water, cattails, etc.):
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21. Outlet device (drop inlet, weir, etc.) is free of damage or clogs:
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22. Orifice size matches approved plans:
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f
23. Outlet is free of damage, clogs, or erosion:
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24. Relative elevations match approved plans:
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V3.3_09