20161023 Ver 1_401 Application_20161016

DIEHL & PHILLIPS, P.A.
CONSULTING ENGINEERS WILLIAM C.DIEHL,P.E.
1500 Piney Plains Road Suite 200 JOHN F.PHILLIPS,P.E.
Cary,North Carolina 27518 ALAN R.KEITH,P.E.
Telephone[phone]—Fax[phone]
October 24, 2016
Karen Higgins
NC DWR—401 &Buffer Permitting Unit
1617 Mail Service Center
Raleigh,NC 27699-1617 0 1 6 1 0 2 3
Re: Riparian Buffer Authorization Application
Storm Drainage Improvements
Hanover Place Homeowners Association, Cary,NC
Dear Ms. Higgins:
Enclosed are three (3) copies of a Riparian Buffer Authorization Form and plans for the
referenced project. We have met with Cherri Smith with the Raleigh Regional Office at the site.
Ms. Smith acknowledged that the proposed impacts are deemed temporary impacts. The
application was completed with that understanding. We request that you approve the application
at the earliest date possible so the drainage problems at the site can be alleviated. Contact our
office if you require anything further.
Sincerely,
Diehl&Phillips, P.A.
C� A i4e
Alan R. Keith, P.E.
enclosure
Cc: Jan Patterson, Town of Cary
Virginia Davis,York Properties
Phil Brucato, Hanover Place HOA

DWR
State of North Carolina
Department of Environment and Natural Resources
Dlvlslon 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 30-2013
Riparian Buffer Authorization Form
A. Applicant Information C J
1. Project Information
1a. Name of project: Hanover Place Storm Drainage Improvements
1b. County: Wake
1c. Nearest municipality: Cary
1d. Subdivision name: K F Homeowners Association 11, Inc.
1e. Is the project located in any of North Carolina's Yes ® No
twenty coastal counties. If yes, answer 1f below.
1f. Is the project located within a NC Division of Coastal E] Yes ® No
Management Area of Environmental Concern (AEC)?
2. Owner Information
2a. Name on Recorded Deed: Hanover Place Homeowners, KFHomeowners Association II, Inc.
2b. Deed Book and Page No. DB 4681 Pg 645, DB 4625 Pg 580
2c. Map Book and Page No.
(include a copy of the recorded
map that indicates when the lot
was created):
2d. Responsible Parry KF Homeowners Association II, Inc. c/o York Properties
(for Corporations):
2e. Street address: 2108 Clark Avenue
2f. City, state,zip: Raleigh, NC 27605
2g. Telephone no.: 919 821 1350
2h. Fax no.: 919 828 9240
2i. Email address: [e-mail]
3. Applicant Information(if different from owner)
3a. Applicant is: x Agent ❑ Other, specify:
3b. Name: Virginia Davis
3c. Business name KF Homeowners Association, Inc.c/o York Properties, Inc.
(if applicable):
3d. Street address: 2108 Clark Avenue
3e. City, state,zip: Raleigh, NC 27605
3f. Telephone no.: 919-863-0818
3g. Fax no.: 919-828-9240
3h. Email address: Virginia Davis
4. Agent/Consultant Information(if applicable)
4a. Name: Alan Keith, P.E.
4b. Business name Diehl& Phillips, P.A.
(if applicable):
4c. Street address: 1500 Piney Plains Road
4d. City, state,zip: Cary, NC 27518
4e. Telephone no.: 919 467 9972
4f. Fax no.: 919 467 5327
4g. Email address: [e-mail]
FORM: BA 10-2013 Page 1 of 4

B. Project Information and Prior Project History,
1. Property Identification
1 a. Property identification no.(tax PIN or parcel ID): 0763511415,0763512853
1 b. Site coordinates (in decimal degrees): Latitude:34.7597 Longitude:78.7797
1 c. Property size: 0.63,3.17 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project: Long Branch(Lake Mortensen)
2b. Water Quality Classification of nearest receiving water: WS III NSW
2c. River basin: Neuse
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:
Eroding channel,flooding,-poor drainage, unsafe conveyance of existing channel from existing pipe to pond,
channel is located in well maintained grassed open space area:
3b.. Attach an 8'/Z x 11 excerpt from the most recent version of the USGS topographic map indicating the location of
the site
3c. Attach an 8'/a 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:
40
3e. Explain:the purpose of the proposed project:
Relieve erosion, flooding,and unsafe:conveyance of.existing channel..
3f. Describe the overall project in detail, including.the type of equipment to be used:
Construction of approximately 130.LF of 36-inch RCP, 112 LF 15-inch RCP,junction boxes,grading,landscaping
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or'strearn determinations by the ❑Yes ❑ No ® Unknown.
Corps'or State been requested or obtained for this propertyl Comments:
projec(,(includ'ing all prior phases)in the;past?
4b. If,yes,who delineated,the jurisdictional areas? Agency/Consultant.Company:
Name,(If known): ether:
4c. If yes, list:the dates of the Corps jurisdictional determinations or State determinations and"attach documentation.
5. Project History
.5a. Have permits or certifications been requested or obtained for this: ❑Yes ❑ No ® Unknown
project(including all prior phases)in'the past?
5b. If yes,explain and detail according to"help file"instructions.
6. Future Project Plans
6a. Is this_a phased project? ❑Yes No
-6b. If.yes',.explain.
FORM: BA 10-2013 Page.2 of 4

C. Proposed Impacts Inventory
1. Buffer Impacts
1 a. Project is in which protected basin? ® Neuse ❑Tar-Pamlico ❑ Catawba
❑Randleman ❑Jordan ❑ Goose Creek
1 b. Individually list all buffer impacts below. If any impacts require mitigation,then you MIUST fill out Section D of this
form.
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/mitigation) required? (sq ft) (sq ft)
or Temporary T
B1 ❑ P ®T Storm drain allowable Unnamed ❑Yes ® No 780 610
improvements I tributary to Long
Branch
B2 ❑ P ❑T El Yes [:] No
B3 ❑ P ❑T ❑Yes ❑ No
B4 ❑ P ❑T ❑Yes ❑ No
B5 ❑ P ❑T ❑Yes [].No
B6 ❑ P ❑T I Yes ❑ No
Total buffer impacts
1c. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the.proposed impacts in designing project.
Proposed project is.entirely ip Wellmaintained grassed area within buffer
1b: Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Proposed culverts can be placed without impacting waters,installations are shallow depth
2. Buffer Mitigation
2a: Will the project result in-an impact within a protected riparian buffer that.requires buffer ❑Yes ® No
mitigation?
2b. If yes,then identify the-square feet of impact to each zone.of the riparian buffer thatrequires mitigation and
calculate the amount of mitigation required in the table below.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet (square feet
.Zone 1 3(2 for-Catawtia)
Zone 2 1.5
Total buffer mitigation required:
2c. If buffer mitigation is required,,.'is payment to a El Yes. ®No
mitigation bank or NC EEP proposed?
2d. If yes,attach the acceptance letter fromthe mitigation bank or-NC EEP.
2e. If no,then discuss what type of mitigation is proposed.
2f. .Comments:
:FORM, BA 10-2013 Page 3 of 4

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.
If due to site constraints,a SMP other than a level spreader is proposed,please provide a
plan for stormwater treatment as outlined in Chapter.8 of the NC Stormwater BMP
Manual and attach a BMP Supplement Form.
F. Supplementary Information
1. Environmental Documentation
la. Does the project involve an expenditure of public(fed eral/stateflocal)funds or the use of ❑Yes ®No
public(federal/state)land?
1b. 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)?
1c. If you answered"yes"to the above,has the document been finalized by State ❑Yes El No
Clearing House? (If so,,attach a copy of the.NEPA or SEPA final approval letter.)
Comments: /
2. Violations
2a. Is thesite=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. 7f you answered."yes"to one or both of the:above questions,,provide an explanation of the-violation(s):
r
Vt -- /c� bhN, - 10 -0-t ,C
Applicant/ ,gent's:Printed Name , licant/Agenf's Signature to
(Agent's signature is.v only if,an authorizatiorrletter from the apolicantis provided.)
Send this completed form and accompanying documents to the following;
For government transportation projects sent, For governntenttransportation projects sent
by FirstClass Mail via the IIS Postal Sendce: by deliverysernice(UPS,FedEx,etc.,):
NC DW R,Transportation.Permitting Unit, OR NC"DWR,Transportation Permitting Unit
1617 Mail Service Center 512 N.Salisbury Street
Raleigh, INC 27699-161 7 Raleigh, NC 27604
For all other projects sent by"First Class Mail For all other projects sent by.deliyery senfice
W*a the US Postal Service (UPS,FedEx, ete.).
Karen Higgins, OR Karen Higgins,
NCDWR—401 &Buffer Permitting Unit NCDWR—401 &Buffer Permitting Unit
1617 Mail Service-Center 512 N.Salisbury Street
Raleigh, NC 27699- 161 7 Raleigh., NC 27604
FORM: BA 10-2013 Page 4 of 4

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D=lm &PIIIum"s, P.A.
CONSULTING ENGINEERS
1500 Piney Plains Rd.,Suite 200
Cary,North Carolina 27518

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(Maps makes every effort to produce and publish
P.A. 0 110 220 440 ft the most current and accurate information possible.
DIEHL &PHILLIPS A. t a— t t I t t t I However,the maps are produced for information purposes,
� 1 inr.h=200 feat and are NOT surveys No warranties,expressed or Implied
CONSULTING ENGINEERS � are provided for the data therein,its use or its interpretation.
1500 Piney Plains Rd.,Suite 200
Cary,North Carolina 27518

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NOTES Jae NO.
1, Contractor shall locate all existing utilities prior to construction. DESIGN
2_ Contractor shall notify Homeowners(York Properties 919 663 0618)prior to ARK
t t entering site and before beginning work. Contractor shall coordinate work DRAWN
schedule with Homeowners,association. MAT
• 7
Wray information provided Phillips by KECKED
3 Su orrnati ided to Diehl� Yo Properties. CP York les
4. Seed and stabilize all disturbed areas. See landscaping plans for final seed ARK
ar a, mixtures,ground covers planting,etc.
S/\ / 5. Erosion control measures shown.are considered minimum: Provide additional SCALF
-Bs _ 20'l
Y . ... 0
measures as required to maintain a stable site during construction
-
0
'Remove existing trees only as required to install new pipe and fill. Legally FILE
r NANOVER_TOPO-For
dispose clearing debris and piping items removed off site-
;, p g pp g York Properties:dwrg
7- All pipes shall be Class iII reinforced concrete(NC Department of Transportation
Stand
material and installation).
., ..
, � ad
3. Removeexisting sedimenta from take bottom at new pipe outlets. Legally� NOR
,o BM 199,9, PC 43 dispose.
cTT 9. Contractor shall provide suitable fill material as required free of boulders;woad,
ct �` and debris. Fill placed around new IaOF'shall be compacted to 95°h Standard
Proctor. Compact fill materiae for stable installation.
1O.All pipe connections shall be watertight.
ve=sods g
11. ched le work t iaintaandralnag
drainage from existing 36-inch RCP and drainage
behind townhouses. Flooding f existing structures shall not be allowed and
shall be at Contractors risk�n
12.Provide barricades and warning signs to close the existing path and bridge
xN
((
-
",.
during construction.
VICINITYMAP 13.Provide CABC 6 inches compacted thickness for new path as shown.
14.Junction box manhole covers shall be perforated with"storm sewer"label.
NO SCALE N` 15.Contractor is responsible for all surveying, layout and staking as well as all
ti project safety.
c M I SOLID COVER SHOWN PERFORATED. PERFORATED AVAILABLE _ U)
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7
JOHN HORSLEY & �OLIINDA
SILT E.Nt E_ FABRIC r I l
HANOVER
MINIMUM 10 GAUGE , NSTRLL J TO SECC7ND�� SOI'"iAFER ///
NE WIRES WIRE FROM TOP 1 MINIMUM 12Y2 s-UGE � LOT 21 / � P LACE \ J. 91
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INTERMEDIATE VI1'S
� EXIST. GRAVEL <,. r' �
HOMEOWNERS \ TOP a 92,5 f � PATH - / r,
f INV. IN-8 .7 - �
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t �� Ii/.�IJT 5 .64 �
I N F � MATERIAL,PLACE AND
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MARIE WICKS COMPACT OHO
FRONT VIEW ;1a LOT 22 COMMON p SILT FENCE_., OV
AREA CLEARING
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USE SILT FENCE ONLY WHEN DRAINAGE AREA ' / / \ L GRAVEL OUTLET
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FES IN 59.0 j � C1� 2.� CLASS QIP- P
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GR
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a, SIDE VIEW INV.t�4IT 9 EXIST, 36" o BULKHEAD TO REMAIN
= �> RCP TO
DETAIL No. N/F /1 3 S ✓ w REMAIN � cT
STANDARD TEMPORARY SILT FENCE
C74000.Q1 ANNE RAlSfS IN �9.
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El FEC'TNF, 12'lOfp9 SHEET i Ora LOT 25 /
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ExlsT.�r.l. ,' % EE PROTECTION
UA
NOTE:
OR 96.9 `�/ MOVE f FENCE REMOVE SEDIMENT FROM LAKE
STr_F1 Eu T �� / / SEE NOTES
XIST. FES f, /
�s BOTTOM ` NEIN PIPE OUTLETS.
W.Fr; -LNCE-- _ ��� �4
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I �% �,. �' RIP-RAP =OLLOWING REMOVAL 44
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ROBERT F $e HANNA CURTIS
SutY adr N Nc LOT 1-R p� U
HARUWARE
A\ EXISTING DRAINAGE
FI�fERCr1.....LrA. --. \ - �,
ACCESS EASEMENT
WA ,Ec Fr SEE NOTES ,
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l ff/ 4
EXIST.
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Y � �,AJ1
., C>P
>ENC ,.. / IN 15"
SILT =EfaGE
RCP).='.,91.76 . f
FILTV TA8RB0 i (36"RCP)=90,69 /
Lar
VIEW ` / OUT(.361" RCP)=90:51 c
4'MIN:.
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ov. T
99 Z
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WRAP RA lid 0 UJ-+Ef`ORM TO NArfjR,,\1. Sa!RiEAM CHANNEL, TOP GF iWRA'
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lANNCL BOF oM AT SEC A-A
Maintenance ��
�S t °'Ra&
1. CHECK DEVICE WEEKLY, AFTER EACH RAIN, AND AS NEEDED. � � � � � SEAL �
2. RESET OR REPLACE POSTS DISLOCATED OR PUSHED OVER.
13371
3. REPAIR OR REPLACE DARE AND FABRIC TO MAINTAIN FENCE INTEGRITY.
C REPAIR AREAS WHERE FENCE HAS BEEN UNDERMINED. PLAN - HANOVER PLACE STORM DRAINAGE IMPROVEMENTS ", a �41 l t4v� °��
5. REMOVE SEDIMENT DEPOSITS THAT HINDER FUNCTION OF FENCES. ��� Yr °« mms`°m SHEET
SILT GRAVELOUTLETSCALE: 1" - 204
OF