20190499 Ver 2_Riparian Buffer Authorization_20190801

DWR
State of North Carolina
Department of Environment and Natural Resources
Division of Water Resources Division of Water Resources
15A NCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b), .0259 (8)(b), .0267 (11)(c), .0607 (e)(2) - Buffer Authorization
FORM: BA 10-2013
A. Applicant Riparian Buffer Authorization Form Information
1. Project Information: This application is for approval of encroachment into the riparian buffer as shown. Permit for
project already obtained
1a. Name of project: Milano Avenue
1b. County: Wake
1c. Nearest municipality: Town of Apex
1d. Subdivision name: n/a
1e. Is the project located in any of North Carolina's
twenty coastal counties. If yes, answer 1f below.
❑ Yes ® No
1f. Is the project located within a NC Division of Coastal
Management Area of Environmental Concern (AEC)?
❑ Yes ® No
2. Owner Information
2a. Name on Recorded Deed:
Town of Apex
2b. Deed Book and Page No.
0136890
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created):
BM2009-00930
2d. Responsible Party
(for Corporations):
2e. Street address:
PO Box 250
2f. City, state, zip:
Apex, NC 27502-0250
2g. Telephone no.:
919 249-3303
2h. Fax no.:
2i. Email address:
3. Applicant Information (if different from owner)
3a. Applicant is:
❑ Agent ® Other, specify: Consultant
3b. Name:
3c. Business name
(if applicable):
3d. Street address:
3e. City, state, zip:
3f. Telephone no.:
3g. Fax no.:
3h. Email address:
4. Agent/Consultant Information (if applicable)
4a. Name:
Alex Aycrigg, PWS
4b. Business name
(if applicable):
Froehling & Robertson, Inc
4c. Street address:
310 Hubert Street
4d. City, state, zip:
Raleigh, NC 27603
4e. Telephone no.:
919 719-1088
4f. Fax no.:
4g. Email address:
aavcrigg@_fandr.com
FORM: BA 10-2013 Page 1 of 6

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
PIN 0721451759
1 b. Site coordinates (in decimal degrees):
Latitude: 35.717359
Longitude: -78.918258
1c. Property size:
14.63 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project:
Beaver Creek
2b. Water Quality Classification of nearest receiving
WS -IV
water:
2c. River basin:
Cape Fear
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of
this application:
There is an existing structure on the property that will be integrated with the proposed. A WQC has already
been issued (#19-0499); however, there has been a change to the stormwater outfall. The new outfall daylights
within the stream buffer.
3b. Attach an 8'/2 x 11 excerpt from the most recent version of the USGS topographic map indicating the location
of the site
3c. Attach an 8'/2 x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map
depicting the project site
3d. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
180'
3e. Explain the purpose of the proposed project:
The Town of Apex is in need of a new electric operations center to serve the existing community
population as well as its continued growth. The Town of Apex has been anticipating its need for a
larger office space, storage space for utility equipment and utility vehicles associated with the influx
of development and residents. This project already has a WQC.
3f. Describe the overall project in detail, including the type of equipment to be used:
Standard construction equipment will be used.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
® Yes ❑ No ❑ Unknown
Corps or State been requested or obtained for this property/
Comments: Previous approval: #19-0499
project (including all prior phases) in the past?
4b. If yes, who delineated the jurisdictional areas?
Agency/ Consultant Company: Froehling
Name (if known): Elias N. Ruhl
and Robertson
Other:
4c. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach
documentation.
SAW -2018-02106 on 5/7/19 and WQC #19-0499 and RRO #18-393
5. Project History
5a. Have permits or certifications been requested or obtained for
® Yes ❑ No ❑ Unknown
this project (including all prior phases) in the past?
5b. If yes, explain and detail according to "help file" instructions.
PJD above was issued along with WQC #19-0499 and Nationwide.
FORM: BA 10-2013 Page 2 of 6

B. Project Information and Prior Project History
6. Future Project Plans
6a. Is this a phased project? ❑ Yes ® No
6b. If yes, explain.
FORM: SSGP3080 8-13 Page 3 of 6

C. Proposed Impacts Inventory
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Project was initially designed and approved with the pond discharge outside of buffer. Design considerations
involving the adjacent property required relocation into the buffer.
1. Buffer Impacts
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
1a. Project is in which protected
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
❑ Neuse
❑ Tar -Pamlico ❑ Catawba
basin?
❑ Randleman
® Jordan ❑ Goose Creek
1 b. Individually list all buffer impacts below. If any impacts
require mitigation, then you MUST fill out Section D of
this form.
❑ Yes ❑ No
2d. If yes, attach the acceptance letter from the mitigation bank or NC EEP.
Buffer impact
Reason for
Type of impact
Stream name
Buffer
Zone 1
Zone 2
number —
impact
(exempt, allowable,
mitigation
impact
impact
Permanent (P)
allowable w/
required?
(sq ft)
(sq ft)
or Temporary
mitigation)
T
131 ® P ❑ T
Stormwater
Allowable
Not named
❑ Yes ® No
78
400
Pond Discharge
132 ❑ P ❑ T
❑ Yes ❑ No
133 ❑ P ❑ T
❑ Yes ❑ No
B4 ❑ P ❑ T
❑ Yes ❑ No
B5 ❑ P ❑ T
❑ Yes ❑ No
B6 ❑ P ❑ T
❑ Yes ❑ No
Total
buffer impacts
78
400
1c. Comments: Discharge relocated so as to not discharge onto the property to the north.
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Project was initially designed and approved with the pond discharge outside of buffer. Design considerations
involving the adjacent property required relocation into the buffer.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction
techniques. Footprint is minimized and impact is due to rip rap.
2. Buffer Mitigation
2a. Will the project result in an impact within a protected riparian buffer that requires buffer
mitigation?
❑ Yes ® No
2b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation and
calculate the amount of mitigation required in the table below.
Zone Reason for impact Total impact Multiplier
(square feet
Required mitigation
(square feet
Zone 1 3 (2 for Catawba)
Zone 2 1.5
Total buffer mitigation required:
2c. If buffer mitigation is required, is payment to a
mitigation bank or NC EEP proposed?
❑ Yes ❑ No
2d. If yes, attach the acceptance letter from the mitigation bank or NC EEP.
2e. If no, then discuss what type of mitigation is proposed.
2f. Comments:
FORM: BA 10-2013 Page 4 of 6

C. Impact Justification and Mitigation, continued
FORM: SSGP3080 8-13 Page 5 of 6

E. Diffuse Flow Plan
All buffer impacts and high ground impacts require diffuse flow or other form of
❑ Diffuse flow
stormwater treatment. Include a plan that fully documents how diffuse flow will be
® Other BMP
maintained. If a Level Spreader is proposed, attach a Level Spreader Supplement Form.
1a.
If due to site constraints, a BMP other than a level spreader is proposed, please provide a
® Yes ❑ No
plan for stormwater treatment as outlined in Chapter 8 of the NC Stormwater BMP
of public (federal/state) land?
Manual and attach a BMP Supplement Form.
1 b.
F.
Supplementary Information
1.
Environmental Documentation
1a.
Does the project involve an expenditure of public (federal/state/local) funds or the use
® Yes ❑ No
of public (federal/state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
❑ Yes ® No
environmental document pursuant to the requirements of the National or State (North
Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c.
If you answered "yes" to the above, has the document been finalized by the State
❑ Yes ❑ No
Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.)
Comments:
2.
Violations
2a.
Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland
❑ Yes ® No
Rules (15A NCAC 02H .1300), DWR Surface Water or Wetland Standards, or Riparian
Buffer Rules (15A NCAC 02B .0200)?
2b.
Is this an after -the -fact permit application?
❑ Yes ® No
2c.
If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Send 3 complete sets of this form and accompanying documents to the following:
For government transportation projects sent
by First Class Mail via the US Postal Service:
NC DWR, Transportation Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699 - 1617
For all other projects sent by First Class Mail
via the US Postal Service
Karen Higgins
NCDWR — 401 & Buffer Permitting Branch
1617 Mail Service Center
Raleigh, NC 27699 - 1617
For government transportation projects sent by
delivery service (UPS, FedEx, etc):
OR NC DWR, Transportation Permitting Unit
512 N. Salisbury Street
Raleigh, NC 27604
For all other projects sent by delivery service
(UPS, FedEx, etc):
OR Karen Higgins
NCDWR — 401 & Buffer Permitting Branch
512 N. Salisbury Street
Raleigh, NC 27604
FORM: BA 10-2013 Page 6 of 6

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FR O E H L I N G & ROBERTSON, INC. Client: CRA Associates Disclaimer: F&R makes no warranties or guarantees regarding the accuracy or
Project: Milano Avenue Site completeness of geographic features shown on this map. Spatial accuracy of
Engineering Stability Since 1881 Location 2850 Milano Ave, Apex, NC measurement provided by source agencies can be obtained by contacting F&R.
310 Hubert Street F&R Project No.: 66W-0183
Raleigh, North Carolina 27603-2302 1 USA Data: USGS 7.5 Minute Map "New Hill, NC" 1993 FIGURE
T 919.828.34411 F 919.828.5751 No.:
Date: October 2018 1 Scale: 1:4,800 1 inch = 400 feet

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Raleigh, North Carolina 27603 1 USA
SINCE -1881 T 919.828.34411 F 919.828.5751 Drawn: PMH Scale: Not Shown Project No.: 66W-0183
Checked: ENR Date: Oct. 2018 Drawing No.: 4

FROEHLINES & ROBERTSON, INC.
Engineering • Environmental • Geotechnical
K310 Hubert Street
Raleigh, North Carolina 27603 1 USA
SINCE 1 861 T 919.828.34411 F 919.828.5751
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Checked: ENR Date: Oct. 2018 Drawing No.: 5
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Drawn: PMH Scale: Not Shown Project No.: 66W-0183
Checked: ENR Date: Oct. 2018 Drawing No.: 5

September 13, 2018
FROEHLING & ROBERTS❑N, INC.
Engineering Stability Since 1881
United States Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Re: USACE Agent Authorization Letter
Milano Avenue Site
2850 Milano Avenue
Apex, Wake County, North Carolina
Parcel ID No. 0721451759
310 Hubert Street
Raleigh, North Carolina 27603-2302
T 919.828.34411 F 919.828.5751
NC License #F-0266
The undersigned, registered property owner(s) of the above -note property, do hereby authorize
Froehling & Robertson, Inc. (F&R) to act on behalf of the current property owner(s) as the agent for
all actions necessary for the processing, issuance, and acceptance of permits or certifications
pertaining to Waters of the United States at the above referenced project site. This agent
authorization letter supersedes all previous agent authorizations.
Owner Signatur :
/
2nd Signature:
(required)
(optional)
Printed Name:
David Hughes
Printed Name:
for Town of Apex
Date:
0 9 .2 0 . 2 018
Date:
Organization:
Town of Apex
Organization:
Mailing Address:
PO Box 250
Mailing Address:
Apex, NC 27502
Phone Number:
919. 249. 3414
Phone Number:
Corporate HQ: 3015 Dumbarton Road Richmond, Virginia 23228 T 804.264.2701 F 804.264.1202 www.fandr.com
VIRGINIA • NORTH CAROLINA • SOUTH CAROLINA • MARYLAND • DISTRICT OF COLUMBIA
A Minoritv-Owned Business

STORM DRAINAGE SCHEDULE
EXISTING IRON PIPE
IPS O
Apex Electrical Ops Center Stormwater Inlet Analysis
UTILITY POLE
STRUCTURES
SANITARY SEWER MANHOLE
R/W
EXISITING RIGHT OF WAY
STORM DRAINAGE PIPE
REINFORCED CONCRETE PIPE
STRUCTU
FLARED END SECTION
CMP
CORRUGATED METAL PIPE
�i
GUY ANCHOR
- -
WATER VALVE
FH
FIRE HYDRANT WATER VALVE
OHU
OVERHEAD UTILITY
RE
TELEPHONE PEDESTAL
CA TV
INVERT
\I/
- O -
AREA LIGHT POST
/I\
LENGTH
PROPERTY LINE
NUMBER
RIM ELEV
INVERT IN
OUT
DETAIL
TYPE
FROM
TO
SIZE
TYPE
(feet)
SLOPE(%)
1
287.80
-
285.80 -
CI
1
2
15
RCP
76
0.75%
2
288.50
285.23
285.03 -
CI
2
3
15
RCP
71
1.00%
3
286.70
284.32
284.12 -
DI
3
4
15
RCP
112
1.00%
4
288.40
283.00
282.80 -
CI
4
5
15
RCP
18
1.00%
5
288.40
282.62
282.42 -
CI
5
7
15
RCP
224
1.01%
6
284.67
-
282.34 -
DI
6
7
15
RCP
173
0.75%
7
283.20
281.0425, 280.1688
279.97 -
DI
7
8
18
RCP
129
3.00%
8A
284.60
-
281.60 -
CI
8A
8
15
RCP
148
2.00%
8
283.25
276.0988, 278.64
269.35 -
CI
8
9
18
RCP
66
2.00%
9
270.30
268.03
267.83 -
DI
9
10
18
RCP
124
3.69%
10
265.50
263.26
263.26 -
DI
10
11
18
RCP
26
1.00%
11
-
263.00
- -
FES
12
13
15
RCP
101
2.00%
12
287.50
-
284.20 -
DI
13
14
15
RCP
118
3.47%
13
286.65
282.18
281.98 -
CI
14
15
15
RCP
108
4.12%
14
282.50
277.89
277.69 -
DI
14
14A
6
DIP
106
2.00%
14A
285.90
-
280.62 -
DI
15
17
15
RCP
103
6.26%
15
276.30
273.24
273.04 -
CI
16
17
15
RCP
32
9.53%
16
283.70
-
269.64 -
CI
17
18
18
RCP
157
1.75%
17
269.50
266.588, 266.5904
266.59 -
DI
18
19
24
RCP
136
0.63%
18
268.10
263.85
263.85 -
DI
20
21
15
RCP
28
0.75%
19
-
263.00
- -
FES
21
23
15
RCP
168
4.70%
20
288.88
-
284.76 -
CI
22
23
15
RCP
28
0.75%
21
288.88
284.55
284.35 -
CI
23
EXYI
15
RCP
101
4.03%
22
280.67
-
276.66 -
CI
24
EXYI
36
RCP
130
2.80%
23
280.67
276.45, 276.454
276.25 -
CI
24
-
-
275.82 -
FES
a I
a /
i
STREAM 4
INTERMITTENT
BUFFERED
I
PARKSIDE AT BO" CASA
B.M. 2017 PG 228 - PHASE 14
SITE PLAN NOTES
1. NO SITE DEVELOPMENT ACTIVITY INCLUDING, BUT NOT LIMITED TO, TESTING, CLEARING, INSTALLATION OF SOIL AND
EROSION MEASURES, OR GRADING SHALL OCCUR UNTIL REQUIRED PROTECTION FENCING HAS BEEN INSTALLED AND
INSPECTED. A PROTECTION FENCING INSTALLATION PERMIT MAY BE OBTAINED AT THE PLANNING DEPARTMENT.
2. PROTECTION FENCING MUST BE PLACED AWAY FROM ANY SAVED TREE ONE FOOT FOR EACH INCH OF CALIPER.
PROTECTION FENCING MUST BE PLACED AT LEAST 10 FEET AWAY FROM ANY OTHER DESIGNATED RCA SUCH AS, BUT
NOT LIMITED TO, HISTORIC BUILDINGS AND STRUCTURES, WETLANDS, AND PONDS. PROTECTION FENCING MUST BE
PLACED ALONG THE OUTSIDE LINE OF THE 100 YEAR FLOODPLAIN AND THE OUTSIDE EDGE OF ANY RIPARIAN BUFFER.
ADDITIONAL PROTECTION FENCING MAY BE REQUIRED IN OTHER LOCATIONS CLOSE TO CONSTRUCTION ACTIVITY
WHERE IT IS DEEMED NECESSARY BY THE ZONING ENFORCEMENT OFFICER. SUCH AREAS MAY INCLUDE COMMON
PROPERTY LINES OR NEAR PUBLIC AREAS (SIDEWALKS, ETC.).
3. ALL GRADING AND SUPPORT STRUCTURES ASSOCIATED WITH ANY RETAINING STRUCTURE SHALL NOT ENCROACH INTO
ANY REQUIRED BUFFER OR PROTECTED AREA (I.E. RCA AND CRITICAL ROOT ZONES OF TREES, PUBLIC UTILITY
EASEMENTS AND RIGHTS-OF-WAY), AND SHALL BE CONTAINED ENTIRELY ON SITE.
4. SITE ELEMENTS REQUIRED TO SATISFY RECREATIONAL REQUIREMENTS SUCH AS, BUT NOT LIMITED TO, PLAY FIELDS,
GREENWAY TRAILS AND ITEMS TYPICALLY ASSOCIATED WITH THEM (BENCHES, TRASH CONTAINERS, SIGNS, ETC.) MUST
MEET ANY APPLICABLE STANDARDS FOUND IN THE TOA STANDARD SPECIFICATIONS AND CONSTRUCTION DETAILS AND
THE REQUIREMENTS OF THE TOA PARKS AND RECREATION DEPARTMENT.
5. RETAINING SYSTEMS PROVIDING A CUMULATIVE VERTICAL RELIEF GREATER THAN FIVE FEET IN HEIGHT WITHIN A
HORIZONTAL DISTANCE OF 50 FEET OR LESS, INCLUDING RETAINING WALLS OR MECHANICALLY STABILIZED EARTH WALLS
SHALL BE DESIGNED AND CONSTRUCTED UNDER THE RESPONSIBLE CHARGE OF A REGISTERED PROFESSIONAL ENGINEER
AND COMPLY IN ALLASPECTS WITH THE NC BUILDING CODE, SECTION 1610. RETAINING SYSTEMS MEETING THIS
CRITERIA WILL REQUIRE A SEPARATE BUILDING PERMIT PRIOR TO START OF WORK. RETAINING STRUCTURE
MATERIALS MUST BE AN INTEGRALLY TINTED BROWN, RUST, OR EARTH -TONE COLOR.
6. PRIOR TO APPROVAL OF A FINAL PLAT OR ISSUANCE OF A CERTIFICATE OF OCCUPANCY FOR ANY DEVELOPMENT WHERE A
STORMWATER CONTROL MEASURE (SCM) IS REQUIRED, CONTACT THE ENVIRONMENTAL PROGRAMS MANAGER AT
919-249-3413 TO DEMONSTRATE THAT THE REQUIRED STRUCTURE IS IN PLACE, IS OPERATIONAL, AND COMPLIES WITH ALL
RELEVANT PORTIONS OF LIDO SEC. 6.1.12 ENGINEERED STORMWATER CONTROLS. IF THE SCM IS USED AS PART OF A
TEMPORARY EROSION CONTROL MEASURE, THE INSPECTION WILL OCCUR DURING THE APPROPRIATE PHASE OF
CONSTRUCTION.
7. SITE IS IN THE PRIMARY WATERSHED PROTECTION OVERLAY DISTRICT.
8. THE SCREENING OF LOAD DOCKS, ROLL-OUT TRASH CONTAINERS, DUMPSTERS, OUTDOOR STORAGE, MECHANICAL AND
HVAC EQUIPMENT AND SIMILAR FACILITIES ON THE ROOF, OR BUILDING SHALL MEETTHE REQUIREMENTS OF LIDO SEC.
8.2.8. SPECIFICALLY, SCREENING MUST BE DONE SO THAT:
A. IT IS INCORPORATED INTO THE OVERALL DESIGN THEME OF THE BUILDING AND LANDSCAPE.
B. SCREENING MATERIALS ARE NOT DIFFERENT FROM OR INFERIOR TO THE PRINCIPAL MATERIALS OF THE BUILDING
OR LANDSCAPE, AND ARE SIMILAR IN MATERIALS AND COLOR.
C. SCREENED ITEMS ARE OUT OF VIEW FROM ADJACENT PROPERTIES AND PUBLIC STREETS, AND A TOTALLY SCREEN
IS ACHIEVED.
D. ANY GROUND -MOUNTED HVAC OR OTHER MECHANICAL OR UTILITY EQUIPMENT SIX (6) FEET TALL OR HIGHER
MUST BE FENCED AND LANDSCAPED
E. DUMPSTER ENCLOSURES MUST MEET THE ABOVE REQUIREMENTS PLUS BE EIGHT (8) FEET TALL OR THE HEIGHT OF
THE DUMPSTER, WHICHEVER IS GREATER, AND BE BUILT OF MASONRY MATERIAL WITH OPAQUE GATES. WHERE
PRACTICABLE, SHRUBS OR OTHER PLANTS MUST BE PLANTED OUTSIDE THE ENCLOSURE TO VISUALLY SOFTEN THE
APPEARANCE.
9. ALL REQUIRED SITE ELEMENTS SHOWN WITHIN A PARTICULAR PHASE MUST BE INSTALLED BEFORE A FINAL CERTIFICATE
OF OCCUPANCY MAY BE ISSUED FOR ANY BUILDING WITHIN THAT PHASE.
10. A GRADING PERMIT, WHEN APPLICABLE, MAY ONLY BE ISSUED BY THE BUILDING INSPECTIONS DIVISION AFTER THE
INSTALLATION AND APPROVAL OF TREE PROTECTION FENCING AND S&E MEASURES AND A CERTIFICATE OF COMPLIANCE
HAS BEEN ISSUED BY THE WATER RESOURCES DEPARTMENT.
EXISTING LEGEND
EAP •
EXISTING IRON PIPE
IPS O
IRON PIPE SET
UTILITY POLE
O$
SANITARY SEWER MANHOLE
R/W
EXISITING RIGHT OF WAY
RCP
REINFORCED CONCRETE PIPE
FES
FLARED END SECTION
CMP
CORRUGATED METAL PIPE
�i
GUY ANCHOR
- -
WATER VALVE
FH
FIRE HYDRANT WATER VALVE
OHU
OVERHEAD UTILITY
T --PED
TELEPHONE PEDESTAL
CA TV
CABLE TV BOX
\I/
- O -
AREA LIGHT POST
/I\
PROPERTY LINE
GRADING LEGEND
SCALE: 1" = 60'-0"
60 30 0 60 120
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
C A R0''•.,
ESS / O'.,��
° SEAL �.
13350
•
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• .I
44
q
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i'
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06/26/19
no. revisions
10 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re -use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
OVERALL
GRADING AND
STORM DRAINAGE
PLAN
sheet
C3.0
project no. 1804
date 6/26/19
CONCRETE SIDEWALK
NEW BUILDING
TEMPORARY CONSTRUCTION EASEMENT
648
CONTOUR & LABEL
651.5
SPOT ELEVATION
TP
TREE PROTECTION FENCE
SD
NEW STORM
DRAIN
SD SD
ROOF LEADER
- -
LIMITS OF DISTURBANCE
$
CLEANOUT
0
CURB INLET
❑o
DROP INLET
1:1
JUNCTION BOX
SCALE: 1" = 60'-0"
60 30 0 60 120
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
C A R0''•.,
ESS / O'.,��
° SEAL �.
13350
•
- t'd
• .I
44
q
4_4
i'
�J
4:1
• t�I
U
r�
W
06/26/19
no. revisions
10 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re -use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
OVERALL
GRADING AND
STORM DRAINAGE
PLAN
sheet
C3.0
project no. 1804
date 6/26/19

8" PVC MA
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CHARLES WALDEN, ET AL \ \
D. B. 10538, PG. 817
B.M. 2003, PG. 1678 \
RIPRAP `
L=17'
W'=18.5'
' TYPE A BUFFER
N 280.9
CONCRETE SIDEWALK
NEW BUILDING
ZQ\_
TEMPORARY CONSTRUCTION EASEMENT
648
CONTOUR & LABEL
651.5
SPOT ELEVATION
TP
TREE PROTECTION FENCE
SD
FES /NV= I
----_-----
SD SD
\
STORMWATER
LIMITS OF DISTURBANCE
$
271.11'
CONTROL
CURB INLET
I
POND
6' CHAIN LINK FENCE RIPRAP
L=18'
W=19.5'
I
THICKNESS = 1.35"
't
SUBSTATION
POD #5
RIPRA
THICKNESS
_ / I SWITCHDUKE
I N
DUKE
METAL I I = = I
METAL POLE I I �4
POLE Z I I I a
RCA I c c I I I I I 10
1.04 AC \ I To `o x 4,x x
I
I I.
I �� a
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JPO ^ ?66 J Ih'
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(3) UTILITY PANELS I a I
ELECTRIC BOX I
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I
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� _ - I i
POLE A \ \ moo_ no /moo - ' ELECTRIC BO v R
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DUKE DUKE \ x � BBX` - - - -266 (FLUSH) -bV1T 15
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f- POLE - - -POLE t5" RCP -o S INV- - - 268 - - - - ) tzo �3 O
---XD
266.14'
\ o 0 0 TW 278.0 TW 278.0' i
ZD Q_ BW 270.0 0 ` BW 271.0
<TW
M
BW 274.0 0
3:1 SLOPE
TW 280.0
17 BW 272.0.'
i
s 4" FOUNDATION DRAIN /
FROM WASH PIT
4 AT MIN 1.0% j \
16 / �4" FOUNDATION DRAIN PIPE
$ - V� INV OUT: 279.83' \
qP
c TW 283.
BW 278.0 \
8" ROOF / I V
LEADER
ti / - I VEHICLE
/ WASH .
BAY s
5
TW 282.5 s \
BW 280.7
VEHICLE
/ I e TORAGE
GARAGE s
TW 282.0
I I BW 282.0 a
FFE 286.0 I \ \
s
N
MATCHLINE - SEE SHEET C3.1
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T- I -A Boz
CIO.
D so ' \\ ,
I < \
s RCA
O. 2.22 AC U \
°� �° moo.
\ \ 2� ` o J 00 I
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INTERIM, NT STREAM
FOREBAY BERM y y J y
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y y y y y I
\ y y
y - WETLAND 1 y y
y I
y 1 y % y
y y I
\ y Iy I
-266 y `I' y
-x -x -x= x ----------
o o I y y y
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o 0 0 0 o
0 0 0 o LIMITS OF
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o 0 0 0 o I \ (TYP.)
0 0 0
T__ 268
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0
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SERVICE AREA
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BW 272.2
o
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-3: I I ^ ti
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BW 274.0 \ I C
Sb \ / 28�� 06 5.00
284' Sb 28.20 - I
EW MEDIUM OR I I \
\RK BROWN OR �� \
RUST COLORED a 48\
'ETAINING WALL I \�
8' CHAIN LINK s
2j
FENCE (RW1) COVERED s I TW 282.0 I e
s MATERIAL e " BW 278.0
STORAGE I \
8" ROOF
LEADER(S) s
>, 285.,00 286.00 s i
28"�' I TW 282.
_ I BW 282.0 C I o
- a 285.00 \
' I
" ROOF _ _ 20' TOA PUE (SEWER)
LEADER - - - B.M. 2016, PG. 1719
AST SSMH
/ RIM=283.0
/ I \ 20 \ INV OUT=274.0
INV I14=274.2
R
\ I-�
SITE PLAN NOTES
1. NO SITE DEVELOPMENT ACTIVITY INCLUDING, BUT NOT LIMITED TO, TESTING, CLEARING, INSTALLATION OF SOIL AND
EROSION MEASURES, OR GRADING SHALL OCCUR UNTIL REQUIRED PROTECTION FENCING HAS BEEN INSTALLED AND
INSPECTED. A PROTECTION FENCING INSTALLATION PERMIT MAY BE OBTAINED AT THE PLANNING DEPARTMENT.
2. PROTECTION FENCING MUST BE PLACED AWAY FROM ANY SAVED TREE ONE FOOT FOR EACH INCH OF CALIPER.
PROTECTION FENCING MUST BE PLACED AT LEAST 10 FEET AWAY FROM ANY OTHER DESIGNATED RCA SUCH AS, BUT
NOT LIMITED TO, HISTORIC BUILDINGS AND STRUCTURES, WETLANDS, AND PONDS. PROTECTION FENCING MUST BE
PLACED ALONG THE OUTSIDE LINE OF THE 100 YEAR FLOODPLAIN AND THE OUTSIDE EDGE OF ANY RIPARIAN BUFFER.
ADDITIONAL PROTECTION FENCING MAY BE REQUIRED IN OTHER LOCATIONS CLOSE TO CONSTRUCTION ACTIVITY
WHERE IT IS DEEMED NECESSARY BY THE ZONING ENFORCEMENT OFFICER. SUCH AREAS MAY INCLUDE COMMON
PROPERTY LINES OR NEAR PUBLIC AREAS (SIDEWALKS, ETC.).
3. ALL GRADING AND SUPPORT STRUCTURES ASSOCIATED WITH ANY RETAINING STRUCTURE SHALL NOT ENCROACH INTO
ANY REQUIRED BUFFER OR PROTECTED AREA (I.E. RCA AND CRITICAL ROOT ZONES OF TREES, PUBLIC UTILITY
EASEMENTS AND RIGHTS-OF-WAY), AND SHALL BE CONTAINED ENTIRELY ON SITE.
4. SITE ELEMENTS REQUIRED TO SATISFY RECREATIONAL REQUIREMENTS SUCH AS, BUT NOT LIMITED TO, PLAY FIELDS,
GREENWAY TRAILS AND ITEMS TYPICALLY ASSOCIATED WITH THEM (BENCHES, TRASH CONTAINERS, SIGNS, ETC.) MUST
MEET ANY APPLICABLE STANDARDS FOUND IN THE TOA STANDARD SPECIFICATIONS AND CONSTRUCTION DETAILS AND
THE REQUIREMENTS OF THE TOA PARKS AND RECREATION DEPARTMENT.
5. RETAINING SYSTEMS PROVIDING A CUMULATIVE VERTICAL RELIEF GREATER THAN FIVE FEET IN HEIGHT WITHIN A
HORIZONTAL DISTANCE OF 50 FEET OR LESS, INCLUDING RETAINING WALLS OR MECHANICALLY STABILIZED EARTH WALLS
SHALL BE DESIGNED AND CONSTRUCTED UNDER THE RESPONSIBLE CHARGE OF A REGISTERED PROFESSIONAL ENGINEER
AND COMPLY IN ALL ASPECTS WITH THE NC BUILDING CODE, SECTION 1610. RETAINING SYSTEMS MEETING THIS
CRITERIA WILL REQUIRE A SEPARATE BUILDING PERMIT PRIOR TO START OF WORK. RETAINING STRUCTURE
MATERIALS MUST BE AN INTEGRALLY TINTED BROWN, RUST, OR EARTH -TONE COLOR.
6. PRIOR TO APPROVAL OF A FINAL PLAT OR ISSUANCE OF A CERTIFICATE OF OCCUPANCY FOR ANY DEVELOPMENT WHERE A
STORMWATER CONTROL MEASURE (SCM) IS REQUIRED, CONTACT THE ENVIRONMENTAL PROGRAMS MANAGER AT
919-249-3413 TO DEMONSTRATE THAT THE REQUIRED STRUCTURE IS IN PLACE, IS OPERATIONAL, AND COMPLIES WITH ALL
RELEVANT PORTIONS OF UDO SEC. 6.1.12 ENGINEERED STORMWATER CONTROLS. IF THE SCM IS USED AS PART OF A
TEMPORARY EROSION CONTROL MEASURE, THE INSPECTION WILL OCCUR DURING THE APPROPRIATE PHASE OF
CONSTRUCTION.
7. SITE IS IN THE PRIMARY WATERSHED PROTECTION OVERLAY DISTRICT.
8. THE SCREENING OF LOAD DOCKS, ROLL-OUT TRASH CONTAINERS, DUMPSTERS, OUTDOOR STORAGE, MECHANICAL AND
HVAC EQUIPMENT AND SIMILAR FACILITIES ON THE ROOF, OR BUILDING SHALL MEET THE REQUIREMENTS OF LIDO SEC.
8.2.8. SPECIFICALLY, SCREENING MUST BE DONE SO THAT:
A. IT IS INCORPORATED INTO THE OVERALL DESIGN THEME OF THE BUILDING AND LANDSCAPE.
B. SCREENING MATERIALS ARE NOT DIFFERENT FROM OR INFERIOR TO THE PRINCIPAL MATERIALS OF THE BUILDING
OR LANDSCAPE, AND ARE SIMILAR IN MATERIALS AND COLOR.
C. SCREENED ITEMS ARE OUT OF VIEW FROM ADJACENT PROPERTIES AND PUBLIC STREETS, AND A TOTALLY SCREEN
IS ACHIEVED.
D. ANY GROUND -MOUNTED HVAC OR OTHER MECHANICAL OR UTILITY EQUIPMENT SIX (6) FEET TALL OR HIGHER
MUST BE FENCED AND LANDSCAPED
E. DUMPSTER ENCLOSURES MUST MEET THE ABOVE REQUIREMENTS PLUS BE EIGHT (8) FEET TALL OR THE HEIGHT OF
THE DUMPSTER, WHICHEVER IS GREATER, AND BE BUILT OF MASONRY MATERIAL WITH OPAQUE GATES. WHERE
PRACTICABLE, SHRUBS OR OTHER PLANTS MUST BE PLANTED OUTSIDE THE ENCLOSURE TO VISUALLY SOFTEN THE
APPEARANCE.
9. ALL REQUIRED SITE ELEMENTS SHOWN WITHIN A PARTICULAR PHASE MUST BE INSTALLED BEFORE A FINAL CERTIFICATE
OF OCCUPANCY MAY BE ISSUED FOR ANY BUILDING WITHIN THAT PHASE.
10. A GRADING PERMIT, WHEN APPLICABLE, MAY ONLY BE ISSUED BY THE BUILDING INSPECTIONS DIVISION AFTER THE
INSTALLATION AND APPROVAL OF TREE PROTECTION FENCING AND S&E MEASURES AND A CERTIFICATE OF COMPLIANCE
HAS BEEN ISSUED BY THE WATER RESOURCES DEPARTMENT.
EXISTING LEGEND
E/P • EXISTING IRON PIPE
IPS O IRON PIPE SET
UTILITY POLE
0 SANITARY SEWER MANHOLE
R/W EXISITING RIGHT OF WAY
RCP REINFORCED CONCRETE PIPE
FES FLARED END SECTION
CMP CORRUGATED METAL PIPE
)� GUY ANCHOR
WATER VALVE
FHV FIRE HYDRANT WATER VALVE
X
OHC/ OVERHEAD UTILITY
T -PED TELEPHONE PEDESTAL
CA TV CABLE TV BOX
I
-O AREA LIGHT POST
PROPERTY LINE
GRADING LEGEND
CONCRETE SIDEWALK
NEW BUILDING
TEMPORARY CONSTRUCTION EASEMENT
648
CONTOUR & LABEL
651.5
SPOT ELEVATION
TP
TREE PROTECTION FENCE
SD
FES /NV= I
DRAIN
SD SD
ROOF LEADER
- -
LIMITS OF DISTURBANCE
$
271.11'
0
CURB INLET
I
/
I
V
/
I
2
4.5�\
/
W
L
I
/Lv
/
Q
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/
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Q
/
,I
Q: LQN
I
o
/
J O
n
Qi
�
v
BW 274.0 0
3:1 SLOPE
TW 280.0
17 BW 272.0.'
i
s 4" FOUNDATION DRAIN /
FROM WASH PIT
4 AT MIN 1.0% j \
16 / �4" FOUNDATION DRAIN PIPE
$ - V� INV OUT: 279.83' \
qP
c TW 283.
BW 278.0 \
8" ROOF / I V
LEADER
ti / - I VEHICLE
/ WASH .
BAY s
5
TW 282.5 s \
BW 280.7
VEHICLE
/ I e TORAGE
GARAGE s
TW 282.0
I I BW 282.0 a
FFE 286.0 I \ \
s
N
MATCHLINE - SEE SHEET C3.1
I
T- I -A Boz
CIO.
D so ' \\ ,
I < \
s RCA
O. 2.22 AC U \
°� �° moo.
\ \ 2� ` o J 00 I
r01 / I
INTERIM, NT STREAM
FOREBAY BERM y y J y
RIP RAP ARMOR y y y
y y y y y I
\ y y
y - WETLAND 1 y y
y I
y 1 y % y
y y I
\ y Iy I
-266 y `I' y
-x -x -x= x ----------
o o I y y y
0 0 0 0 0 0 0
o 0 0 0 o
0 0 0 o LIMITS OF
0 0 I \\ DISTURBANCE
o 0 0 0 o I \ (TYP.)
0 0 0
T__ 268
0 0 �IIJIII
0
I
0 0 0 0
o Io
I o 0 o I
SERVICE AREA
LLL_
M
09 o V I I Z
0 0 o I
0 0 0
C Z O
0
0 0 0 0
Q
TW 278.0 TW 278.0 w O N
BW 272.2
o
rq 28
-3: I I ^ ti
3:1 SLOPE
I
TW 281.0
BW 274.0 \ I C
Sb \ / 28�� 06 5.00
284' Sb 28.20 - I
EW MEDIUM OR I I \
\RK BROWN OR �� \
RUST COLORED a 48\
'ETAINING WALL I \�
8' CHAIN LINK s
2j
FENCE (RW1) COVERED s I TW 282.0 I e
s MATERIAL e " BW 278.0
STORAGE I \
8" ROOF
LEADER(S) s
>, 285.,00 286.00 s i
28"�' I TW 282.
_ I BW 282.0 C I o
- a 285.00 \
' I
" ROOF _ _ 20' TOA PUE (SEWER)
LEADER - - - B.M. 2016, PG. 1719
AST SSMH
/ RIM=283.0
/ I \ 20 \ INV OUT=274.0
INV I14=274.2
R
\ I-�
SITE PLAN NOTES
1. NO SITE DEVELOPMENT ACTIVITY INCLUDING, BUT NOT LIMITED TO, TESTING, CLEARING, INSTALLATION OF SOIL AND
EROSION MEASURES, OR GRADING SHALL OCCUR UNTIL REQUIRED PROTECTION FENCING HAS BEEN INSTALLED AND
INSPECTED. A PROTECTION FENCING INSTALLATION PERMIT MAY BE OBTAINED AT THE PLANNING DEPARTMENT.
2. PROTECTION FENCING MUST BE PLACED AWAY FROM ANY SAVED TREE ONE FOOT FOR EACH INCH OF CALIPER.
PROTECTION FENCING MUST BE PLACED AT LEAST 10 FEET AWAY FROM ANY OTHER DESIGNATED RCA SUCH AS, BUT
NOT LIMITED TO, HISTORIC BUILDINGS AND STRUCTURES, WETLANDS, AND PONDS. PROTECTION FENCING MUST BE
PLACED ALONG THE OUTSIDE LINE OF THE 100 YEAR FLOODPLAIN AND THE OUTSIDE EDGE OF ANY RIPARIAN BUFFER.
ADDITIONAL PROTECTION FENCING MAY BE REQUIRED IN OTHER LOCATIONS CLOSE TO CONSTRUCTION ACTIVITY
WHERE IT IS DEEMED NECESSARY BY THE ZONING ENFORCEMENT OFFICER. SUCH AREAS MAY INCLUDE COMMON
PROPERTY LINES OR NEAR PUBLIC AREAS (SIDEWALKS, ETC.).
3. ALL GRADING AND SUPPORT STRUCTURES ASSOCIATED WITH ANY RETAINING STRUCTURE SHALL NOT ENCROACH INTO
ANY REQUIRED BUFFER OR PROTECTED AREA (I.E. RCA AND CRITICAL ROOT ZONES OF TREES, PUBLIC UTILITY
EASEMENTS AND RIGHTS-OF-WAY), AND SHALL BE CONTAINED ENTIRELY ON SITE.
4. SITE ELEMENTS REQUIRED TO SATISFY RECREATIONAL REQUIREMENTS SUCH AS, BUT NOT LIMITED TO, PLAY FIELDS,
GREENWAY TRAILS AND ITEMS TYPICALLY ASSOCIATED WITH THEM (BENCHES, TRASH CONTAINERS, SIGNS, ETC.) MUST
MEET ANY APPLICABLE STANDARDS FOUND IN THE TOA STANDARD SPECIFICATIONS AND CONSTRUCTION DETAILS AND
THE REQUIREMENTS OF THE TOA PARKS AND RECREATION DEPARTMENT.
5. RETAINING SYSTEMS PROVIDING A CUMULATIVE VERTICAL RELIEF GREATER THAN FIVE FEET IN HEIGHT WITHIN A
HORIZONTAL DISTANCE OF 50 FEET OR LESS, INCLUDING RETAINING WALLS OR MECHANICALLY STABILIZED EARTH WALLS
SHALL BE DESIGNED AND CONSTRUCTED UNDER THE RESPONSIBLE CHARGE OF A REGISTERED PROFESSIONAL ENGINEER
AND COMPLY IN ALL ASPECTS WITH THE NC BUILDING CODE, SECTION 1610. RETAINING SYSTEMS MEETING THIS
CRITERIA WILL REQUIRE A SEPARATE BUILDING PERMIT PRIOR TO START OF WORK. RETAINING STRUCTURE
MATERIALS MUST BE AN INTEGRALLY TINTED BROWN, RUST, OR EARTH -TONE COLOR.
6. PRIOR TO APPROVAL OF A FINAL PLAT OR ISSUANCE OF A CERTIFICATE OF OCCUPANCY FOR ANY DEVELOPMENT WHERE A
STORMWATER CONTROL MEASURE (SCM) IS REQUIRED, CONTACT THE ENVIRONMENTAL PROGRAMS MANAGER AT
919-249-3413 TO DEMONSTRATE THAT THE REQUIRED STRUCTURE IS IN PLACE, IS OPERATIONAL, AND COMPLIES WITH ALL
RELEVANT PORTIONS OF UDO SEC. 6.1.12 ENGINEERED STORMWATER CONTROLS. IF THE SCM IS USED AS PART OF A
TEMPORARY EROSION CONTROL MEASURE, THE INSPECTION WILL OCCUR DURING THE APPROPRIATE PHASE OF
CONSTRUCTION.
7. SITE IS IN THE PRIMARY WATERSHED PROTECTION OVERLAY DISTRICT.
8. THE SCREENING OF LOAD DOCKS, ROLL-OUT TRASH CONTAINERS, DUMPSTERS, OUTDOOR STORAGE, MECHANICAL AND
HVAC EQUIPMENT AND SIMILAR FACILITIES ON THE ROOF, OR BUILDING SHALL MEET THE REQUIREMENTS OF LIDO SEC.
8.2.8. SPECIFICALLY, SCREENING MUST BE DONE SO THAT:
A. IT IS INCORPORATED INTO THE OVERALL DESIGN THEME OF THE BUILDING AND LANDSCAPE.
B. SCREENING MATERIALS ARE NOT DIFFERENT FROM OR INFERIOR TO THE PRINCIPAL MATERIALS OF THE BUILDING
OR LANDSCAPE, AND ARE SIMILAR IN MATERIALS AND COLOR.
C. SCREENED ITEMS ARE OUT OF VIEW FROM ADJACENT PROPERTIES AND PUBLIC STREETS, AND A TOTALLY SCREEN
IS ACHIEVED.
D. ANY GROUND -MOUNTED HVAC OR OTHER MECHANICAL OR UTILITY EQUIPMENT SIX (6) FEET TALL OR HIGHER
MUST BE FENCED AND LANDSCAPED
E. DUMPSTER ENCLOSURES MUST MEET THE ABOVE REQUIREMENTS PLUS BE EIGHT (8) FEET TALL OR THE HEIGHT OF
THE DUMPSTER, WHICHEVER IS GREATER, AND BE BUILT OF MASONRY MATERIAL WITH OPAQUE GATES. WHERE
PRACTICABLE, SHRUBS OR OTHER PLANTS MUST BE PLANTED OUTSIDE THE ENCLOSURE TO VISUALLY SOFTEN THE
APPEARANCE.
9. ALL REQUIRED SITE ELEMENTS SHOWN WITHIN A PARTICULAR PHASE MUST BE INSTALLED BEFORE A FINAL CERTIFICATE
OF OCCUPANCY MAY BE ISSUED FOR ANY BUILDING WITHIN THAT PHASE.
10. A GRADING PERMIT, WHEN APPLICABLE, MAY ONLY BE ISSUED BY THE BUILDING INSPECTIONS DIVISION AFTER THE
INSTALLATION AND APPROVAL OF TREE PROTECTION FENCING AND S&E MEASURES AND A CERTIFICATE OF COMPLIANCE
HAS BEEN ISSUED BY THE WATER RESOURCES DEPARTMENT.
EXISTING LEGEND
E/P • EXISTING IRON PIPE
IPS O IRON PIPE SET
UTILITY POLE
0 SANITARY SEWER MANHOLE
R/W EXISITING RIGHT OF WAY
RCP REINFORCED CONCRETE PIPE
FES FLARED END SECTION
CMP CORRUGATED METAL PIPE
)� GUY ANCHOR
WATER VALVE
FHV FIRE HYDRANT WATER VALVE
X
OHC/ OVERHEAD UTILITY
T -PED TELEPHONE PEDESTAL
CA TV CABLE TV BOX
I
-O AREA LIGHT POST
PROPERTY LINE
GRADING LEGEND
SCALE:1" = 40'-0"
40 20 0 40 80
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
CARO N,
S5 "; - SAL .
g 13350
:v:
•.ti�n•FA..2� ,:
06/26/19
4_4
U
Vl
. O
4_4
O
O
no. revisions
10 ADDENDUM #1 - 7/16/19
72 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re -use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
ENLARGED
GRADING AND
STORM DRAINAGE
PLAN
sheet
2 ■
project no. 1804
date 6/26/19
CONCRETE SIDEWALK
NEW BUILDING
TEMPORARY CONSTRUCTION EASEMENT
648
CONTOUR & LABEL
651.5
SPOT ELEVATION
TP
TREE PROTECTION FENCE
SD
NEW STORM
DRAIN
SD SD
ROOF LEADER
- -
LIMITS OF DISTURBANCE
$
CLEANOUT
0
CURB INLET
SCALE:1" = 40'-0"
40 20 0 40 80
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
CARO N,
S5 "; - SAL .
g 13350
:v:
•.ti�n•FA..2� ,:
06/26/19
4_4
U
Vl
. O
4_4
O
O
no. revisions
10 ADDENDUM #1 - 7/16/19
72 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re -use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
ENLARGED
GRADING AND
STORM DRAINAGE
PLAN
sheet
2 ■
project no. 1804
date 6/26/19

CHARLES WALDSIV, ET AL
D. B. 105J8, PG. 817
W B.M. 2003 PG. 1 678 ,
IL
9UKE /2�6 0 RIPRAP ,
9ETAL / L=17 /
'QLE — —'' WOODED W'= 18.5; /
THICKNESS = 1.35
/ I
TYPE A BUFFER
260
—/
-- �— — -- _264
—_J
9UKE / / -- --------- �\ \
4ETAL l // ---------------
SOLE
STORMWATER
WETPOND
6 CHAIN LINK FENCE RIPRAP
I I I L=18'
I I W=19.5
I I THICKNESS = 1.35" I �v
I I I SII I I 263.00
I I
I I RIPRAP
I L=13'
j W'=15' I II I I j l 11
I I I THICKNESS = 0.9"
I I 26o-"
I I I I I I
I I ► I 111
119
I I I I
I I I
-�
v v I I I I I
W Z 1111 .I
OUTLET STRUCTURE
WITH TRASH RACK
TOP ELEV: 265.00'
48" RECTANGULAR
WEIR: H=6" W=30" RISER STRUCTURE
ON 2 (TWO) SIDES
ELEV: 263.69'
TURNED -DOWN ELBOW
WATER QUALITY ORIFICE 1.5"0
ELEV: 263.00'
MIN. 6"
100 -YR STORM: 265.00 �J
n
TEMPORARY POOL: 263.69
n
0 0 0
PERMANENT P�OL:263.0 - - - ELEV: 263.50
INLET X—ELEV: 262.50'
PIPES)
ENERGY
DISSIPATOR FOREBAY
260.0' 260.5' SEDIMENT
SEDIMENT STORAGE
STORAGE MIN. 6"
MIN. 6"
NOTE: BOTTOM OF POND
FOREBAY ENTRANCE TO BE ELEV: 258.00 INV. OUT:
DEEPER THAN EXIT. DRAIN VALVE AND 258.00'
HANDWHEEL ASSEMBLY
W/ SUPPORT BRACKETS ANTI -FLOATATION
�STORMWATER CONTROL MEASURE DETAIL — WETPOND
C3.3/ SCALE: N.T.S.
MIN. 10' BERM
AROUND POND
ELEV: 266.00'
EMERGENCY SPILLWAY
103 LF 18" RCP @ 0.37%
ANTI -SEEP COLLAR
—VEGETATED SHELF
MIN. WIDTH: 6 FT
MAX. SLOPE: 6H: 1 V
WATER -TIGHT JOINTS
FES INV. 260.0'
/ \ V
I /
/
I
I
J
V -NT STREAM
11 �
I �
WETLAND 1
DISTURBED AREA
ZONE 1 78 S.F.
ZONE 2 400 S.F.
T"4SH RACK
STORMWATER CONTROL MEASURE NOTES
THE FOLLOWING MUST OCCUR PRIOR TO FINAL PLAT AND/ OR CERTIFICATION OF
OCCUPANCY (CO):
1. ALL STORMWATER CONTROL MEASURES (SCMs) MUST BE INSTALLED IN
ACCORDANCE WITH THE APPROVED CONSTRUCTION DRAWINGS.
2. DURING THE SCM CONVERSION PROCESS, ALL EFFORTS SHALL BE MADE TO
PROTECT DOWNSTREAM WATER RESOURCES. THE DRAIN VALVE SHALL NOT BE
LEFT OPEN AT ANY TIME DURING THE SCM CONVERSION. A SKIMMER
DRAWDOWN SYSTEM SHALL BE INSTALLED AND UTILIZED UNTIL THE SCM IS
FULLY CONVERTED.
3. THE DESIGN ENGINEER MUST SUBMIT AN AS -BUILT PACKAGE WHICH MEETS
ALL REQUIREMENTS PRESENTED IN THE TOWN SPEC BOOK INCLUDING A
SIGNED AND SEAL CERTIFICATION STATEMENT.
4. FOR SUBDIVISIONS ONLY, A 25% MAINTENANCE GUARANTEE IS REQUIRED TO
BE SUBMITTED TO JEAN WEATHERMAN IN DEVELOPMENT SERVICES AT (919)
249-3394.
5. THE APPROPRIATE EXECUTED SCM O&M AGREEMENT MUST BE eRECORDED
THROUGH JEAN WEATHERMAN IN DEVELOPMENT SERVICES.
6. A FINAL INSPECTION BY THE STORMWATER & UTILITY ENGINEERING STAFF
SHALL BE CONDUCTED ONCE THE AS -BUILT SUBMITTAL HAS BEEN RECEIVED.
ONCE APPROVED, STAFF WILL SEND A OFFICIAL AN OFFICIAL SCM APPROVAL
LETTER TO THE OWNER.
7. IN LIEU OF SCM COMPLETION AND FINAL APPROVAL BY STAFF, THE TOWN MAY
ACCEPT A 125% PERFORMANCE GUARANTEE IN ACCORDANCE WITH UDO
SECTION 6.1.12(G). THIS GUARANTEE WILL BE COLLECTED BY JEAN
WEATHERMAN IN DEVELOPMENT SERVICES AT [phone].
8. ALL SCMs ARE REQUIRED TO BE COMPLETED PRIOR TO A FINAL CO FOR A SITE
PLAN AND ISSUANCE OF 90% OF COs WITHIN A SUBDIVISION. IF THE
SUBDIVISION IS TO BE PHASED, ALL SCMs SHALL BE COMPLETED PRIOR TO
ISSUANCE OF 90% OF COs WITHIN THAT PHASE.
9. IF AN SCM COUNTS TOWARDS RCA, THE REQUIRED LANDSCAPING SHALL BE
INSTALLED DURING THE APPROPRIATED GROWING SEASON AND
COORDINATED WITH TOWN ZONING COMPLIANCE OFFICER AT [phone].
EXISTING LEGEND
DP •
EXISTING IRON PIPE
IPS O
IRON PIPE SET
TEMPORARY CONSTRUCTION EASEMENT
UTILITY POLE
0
SANITARY SEWER MANHOLE
R/W
EXISITING RIGHT OF WAY
RCP
REINFORCED CONCRETE PIPE
FES
FLARED END SECTION
CMP
CORRUGATED METAL PIPE
�i
GUY ANCHOR
LIMITS OF DISTURBANCE
WATER VALVE
FH
FIRE HYDRANT WATER VALVE
OH(/
OVERHEAD UTILITY
T—PED
TELEPHONE PEDESTAL
CA TV
CABLE TV BOX
I
�0
AREA LIGHT POST
I
—
PROPERTY LINE
OUTLET STRUCTURE FOR BIO -CELL
SCALE N.T.S.
GRADING LEGEND
SCALE: 1" = 20'-0"
---------------
20 10 0 20 40
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
_ SEAL
13350 •
s •
\ 06/26/19
4�
U
C/1
.C)
� O
4_4 o
O,ssssssill
Essissill
no. revisions
10 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re—use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
ENLARGED
STORMWATER
CONTROL
MEASURE PLAN
sheet
C303
project no. 1804
date 6/26/19
CONCRETE SIDEWALK
NEW BUILDING
TEMPORARY CONSTRUCTION EASEMENT
648
CONTOUR & LABEL
651.5
SPOT ELEVATION
TP
TREE PROTECTION FENCE
SD
NEW STORM
DRAIN
SD SD
ROOF LEADER
— —
LIMITS OF DISTURBANCE
$
CLEANOUT
Q
CURB INLET
SCALE: 1" = 20'-0"
---------------
20 10 0 20 40
Construction Document Bid Set
222 cloister court
chapel hill, nc 27514
919.401.8586
www.cra-ae.com
_ SEAL
13350 •
s •
\ 06/26/19
4�
U
C/1
.C)
� O
4_4 o
O,ssssssill
Essissill
no. revisions
10 NCDEQ REVISIONS FOR
STORM BUFFER 7/29/19
The use of these plans and specifications
shall be restricted to the original site for
which they were prepared and publication
thereof is expressly limited to such use.
Re—use, reproduction, or publication by any
method, in whole or in part, is prohibited.
Title to the plans and specifications remain
in the architect without prejudice. It is to
be returned upon request to the architect.
Visual contact with those plans and
specifications shall constitute prima facie
evidence of the acceptance of these
restrictions.
drawn checked
ENLARGED
STORMWATER
CONTROL
MEASURE PLAN
sheet
C303
project no. 1804
date 6/26/19

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GRADING LEGEND
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K_
Water Resources
Environmental Quality
October 26, 2018
Town of Apex
Ann. Michael Denton
PO Box 250
Apex, NC 27502
ROY COOPER
MICHAEL S. REGAN
.ls=s'r'el�'1r' i
LINDA CULPEPPER
Infer -fin Dw. cl .
Subject: Buffer Determination Letter
RRO # 18-393
Wake County
Determination Type:
Buffer
Intermittent/Perennial
E Neuse (I 5A NCAC 2B .0233)
Stop@
r_1 Tar -Pamlico {ISA NCAC 2B .0259)
® intermittent/Perennial Determination (where local
A
buffer ordinances apply)
❑ Jordan (15A NCAC 2B .0267) (governmental
X Throughout
and/or interjurisdictional projects)
Project Name: 2850 Milano Avenue, A
Address/Location: 2850 Milano Avenue, A
Stream(s): Beaver Creek & UTs
Determination Date: 10/26/2018
NC 27502
Staff: Jeremiah Dow
Stream
Feature
E/1/01)
Not
Subject(2)
Subject Startg,
Stop@
Soil
survey
[LSCS
To o
A
I
X Throughout
X
B
E
X
NA
NA
X
C
E
X
NA
NA
X
(1) E = Ephemeral, l = Intermittent, P e Perennial, NP= Not Present
(2) Refers to State riparian buffer rules only. Stream, wetland, or pond impacts are still subject to applicable water quality standards and permitting requirements.
Explanation: The streams)/pond(s) listed above has been located on the most recent published NRCS Soil Survey
of Wake County, North Carolina and/or the most recent copy of the USGS Topographic map at a 1: 24,000 scale.
Each feature that is checked "Not Subject' has been determined to not be an intermittent stream, perennial stream, a
pond connected to a stream feature, or the feature is determined not to be present. Stream features that are checked
"Subject" have been located on the property and possess characteristics that qualify it to be subject to the buffer
rules. There may be other streams located on the property that do not show up on the maps referenced above and are
therefore not subject to the buffer rules. However, if the stream features are present on the tract they are subject to
all other applicable North Carolina stream standards and permitting requirements as outlined in 15A NCAC 02B,
and may be considered jurisdictional according to the US Army Corps of Engineers.
`—Nothing Compares - _.
State of North Carolina I Environmental Quality I Water Resources ! Raleigh Regional office
1628 Mail service Center , Raleigh, North Carolina 27699-1628
9197914200

2850 Milano Ave., Apex
Wake County
10/26/2018
Page 2 of 2
This on-site determination shall expire live (5) years from the date of this letter. Landowners or affected
parties that dispute a determination made by the DWR may request a determination by the Director. An
appeal request must be made within sixty (60) days of date of this letter. A request for a determination by the
Director shall be referred to the Director in writing. Ifsending via US Postal Service: c/o Karen Higgins;
DWR — 401 & Buffer Permitting Unit; 1617 Mail Service Center; Raleigh, NC 27699-1617. If sending via
delivery service (UPS, FedEx, etc.): Karen Higgins; DWR — 401 & Buffer Permitting Unit, 512 N. Salisbury
Street; Raleigh, NC 27604.
This determination is final and binding unless, as detailed above, an appeal is requested within sixty (64)
days.
This project may require a Section 4041401 Permit for the proposed activity. Any inquiries should be
directed to the US Army Corp of Engineers (Raleigh Regulatory Field Office) at (919)-554-4884.
If you j a questions regarding this rrnination, please feel free to contact Jeremiah Dow at [phone].
Sir}Eerely,
II�
Y �/iii ``" • �7
Danny Smit
Supervisor, ater Quality Regional Operations Center
cc: RRO DWR File Copy
Paul Hughes, Froehling & Robertson, via email at [e-mail]

2850 Milano Ave., Apex (Wake)
Strum Determination # 18-393
Legend
Approximate Site Boundary
187.5 375 750
Feet
Map provided by NCDEQ Division
of Water Resources
Locations are approximate and are
provided for reference only ::

2850 Milano Ave., Apex (Wake)
Stream Determination #18-393
Legend
Approximate Site Boundary
0 250 540 1 A0
Feet
L'" i ree k
f'
USGS The National Map: National Boundaries Dataset, National Elevation
Dataset, Geographic Names Information System, National Hydrography
Dataset, National Land Cover Database, National Structures Dataset, and
National Transportation Dataset; U.S. Census Bureau -TIGER/Line, HERE
Road Data. Data Refreshed July, 2017.
Map provided by NCDEQ Division
of Water Resources
Locations are approximate and are
provided for reference only ::