HomeMy WebLinkAbout20091161 Ver 2_Minor Variance Application_201701061616 East Millbrook Road, Suite 160
Raleigh, NC 27609
m o f f a t t & n i c h o l (919) 781-4626 Fax (919) 781-4869
www.moffaftnichol.com
January 6, 2017
Karen Higgins
401 & Buffer Permitting Unit
NC Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Higgins:
Attached please find an application for a revised Minor Variance from the Neuse River
Riparian Protection Rules for a house at 3519 Turnbridge Drive in Raleigh, NC. As you know, the
Division of Water Quality (now Division of Water Resources) approved a Minor Variance for this
project on November 9, 2009 — DWQ Project # 2009-1161 based on an application dated
October 26, 2009 (see attached at end of package). That Minor Variance provided conditional
approval for 38 square feet of impact to Zone 2 of the buffer at this location. During our work
to address condition 5 (Diffuse Flow) of that Minor Variance, we discovered impacts to the
buffer (Zones 1 and 2) that were not reported in our original application — namely eight plastic
drainage pipes which used to carry stormwater from downspouts at the house. These
downspouts have now been connected to on-site rain gardens developed in coordination with
Danny Smith of the Raleigh Regional Office of the Division of Water Resources in order to
comply with Condition 5 of the Minor Variance. These pipes have now been removed from the
buffer, soil placed in the trenches back to the natural grade, and the areas seeded and mulched
to provide stability. This work has required the temporary impact to 181 square feet of buffer
(30 square feet in Zone 1 and 151 square feet in Zone 2). The purpose of this application for a
revised Minor Variance is to address this permitting oversight and make certain that all the
unavoidable buffer impacts (temporary and permanent) have been reported to DEQ and
appropriately permitted.
Please call me at 919-522-6364 if you have any questions or I can be reached by email at
idorney@moffattnichol.com.
Cc: Ron Garber; Boxley,
Sincerely,
MOFFATT & NICHOL
nmental Scientist
ria email)
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)
Protection and Maintenance of Riparian Areas Rules - Variance Application
FORM: VAR 10-2013
PLEASE IDENTIFY WHICH RIPARIAN AREA PROTECTION RULE APPLIES:
xNeuse River Basin (15A NCAC 02B.0233)
❑ Major Variance x Minor Variance
❑ Catawba River Basin (15A NCAC 02B.0243)
❑ Randleman Lake Water Supply Watershed (15A NCAC 02B.0250)
❑ Major Variance ❑ Minor Variance
❑ Tar -Pamlico River Basin (15A NCAC 02B.0259)
❑ Major Variance ❑ Minor Variance
❑ Jordan Lake Water Supply Nutrient Strategy (15A NCAC 02B.0267)
❑ Major Variance ❑ Minor Variance
❑ Goose Creek Watershed (15A NCAC 0213.0606 & 15A NCAC 02B.0607)
A. General Information
1. Applicant's Information(if other than the current property owner):
Name: Same as Property Owner listed below
Title
Street Address:
City, State & Zip:
Telephone:
Email:
2. Property Owner/Signing Official (person legally responsible for the property and its compliance):
Name: Charles W. Teague
Title: President; Teague & Skelton, Inc.
Street Address: 1313 Enderbury Drive,
City, State & Zip: Raleigh, NC 27614
Telephone: 919-676-7644
Email: woody@woodyteague.com
FORM: VAR 10-2013
3. Agent Information:
3a. Name:
Company Affiliation
Street Address:
John R. Dorney
Moffatt & Nichol
4700 Falls of Neuse Road, Suite 300
City, State & Zip: Raleigh, NC 27609
Telephone: 919-781-4626 (w): 919-522-6364 (m)
E-mail: jdorney@moffattnichol.com
3b. Attach a signed and dated copy of the Agent Authorization letter if the Agent has signatory authority for the owner.
4. Project Name (Subdivision, facility, or establishment name):
3519 Turnbridse Drive House
5. Project Location:
5a. Street Address: 3519 Turnbridge Drive
City, State & Zip: Raleigh, NC 27609
5b. County: Wake
5c. Site Coordinates (in decimal degrees): 35.8284376N Latitude; -78.6399497W Longitude
5d. Attach an 8 % x 11 excerpt from the most recent version of the USGS topographic map indicating the location of the site.
5e. Attach an 8'/: x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map depicting the
project site.
6. Property Information:
6a. Property identification number (parcel ID): 1705667902; Real Estate ID Number 0071532
6b. Date property was purchased: February 25, 2005
6c. Deed book n/a and page number n/a
6d. Map book 1947 and page number 79
6e. Attach a copy of the recorded map that indicates when the lot was last platted.
7. Is your project in one of the 20 Coastal Counties covered under the Coastal Area Management Act (CAMA)?
❑ YES x NO
7a. If you answered yes above, in which AEC do you fall (30 ft or 75 ft)?
7b. If you answered yes above, what is the total percent of impervious cover that you have proposed within the AEC?
FORM: VAR 10-2013 Page 2 of 8
8. Directions to site from nearest major intersection:
From the 1-440 Beltline, take the Six Forks Exit south, turn right onto Ramblewood Dvive and then left onto Bellevue Road, turn
right onto Turnbridge Drive and go to property at 3519 Turnbridge Drive on the right.
9. Stream associated with riparian buffer to be impacted by the proposed activity:
Name Water Quality Classification
UT Crabtree Creek C: NSW
9a. For Goose Creek only: Is the buffer in the 100 -year floodplain? ❑ YES ❑ NO
10. List any permits/approvals that have been requested or obtained for this project in the past (including all prior phases).
Date Applied: Date Received: Permit Type:
October 26, 2009 November 9, 2009 Minor Variance — Neuse River Buffer Rules (DWQ Project # 2009-1161)
B. Proposed Activity
Project Description
1a. Provide a detailed description of the proposed activity including its purpose:
The site consists of a 0.45 acre lot with one residential house located on the property. The lot is located in a residential
neighborhood that was developed in the 1970's in the northern side of the City of Raleigh. Figure 1 depicts the location of
the property on the US Geological Survey (USGA) Raleigh West, NC 7.5 minute quadrangle topographic map. Figure 2 shows
the location of the site on the applicable Wake County Soil Survey map.
The activity is to retain a covered porch as well as brick and wooden support columns for the decks in 38 square feet of
Zone 2 of the riparian buffer as allowed by the NC Division of Water Quality in a Minor Variance issued on November 9,
2009. In addition, during installation of two rain gardens outside the protected buffer in order to meet condition 5 of the
Minor Variance, eight black, plastic drainage pipes were discovered in Zones 1 and 2 of the buffer and have now been
physically removed. This has resulted in disturbance to the ground surface in the buffer of 181 square feet (30 square feet
in Zone 1 and 151 square feet in Zone 2).
1b. Attach a site plan showing the following items as applicable to the project:
0 Development/Project name
0 Revision number & date
0 North arrow
0 Scale (1" = 50' is preferred)
0 Property/project boundary with dimensions
0 Adjacent streets and roads labeled with names and/or NC State Road numbers
0 Original contours and proposed contours
0 Perennial and intermittent streams, ponds, lakes, rivers and estuaries
0 Mean high water line (if applicable)
0 Wetlands delineated, or a note on plans that none exist
Location of forest vegetation along the streams, ponds, lakes, rivers and estuaries
FORM: VAR 10-2013 Page 3 of 8
0 Extent of riparian buffers on the land including Zone 1 and Zone where applicable
0 Location and dimension of the proposed buffer impact (label the area of buffer impact in Won the plan)
0 Details of roads, parking areas, cul-de-sacs, sidewalks, and curb and gutter systems
0 Footprint of any proposed buildings or other structures
0 Discharge points of gutters on existing structures and proposed buildings
0 Existing drainage (including off-site), drainage easements, and pipe dimensions
0 Drainage areas delineated
C. Proposed Impacts and Mitigation
1. Individually list the square footage of each proposed impact to the protected riparian buffers:
Buffer Impact
Required
—
Number' —
Reason for Impact
Buffer
Zone 1 Impact
Zone 2 Impact
Permanent (P) or
(square feet)
Mitigation
(square feet)
(square feet)
Temporary (T)
Required
(2 for Catawba only)
B1 - x P [:]T
Screen porch and deck
❑ Yes x No
0
38
supports
B2 - P x T
Removal of plastic
❑ Yes x No
30
151
drainage pipes from
buffer
B3 -❑P ❑T
❑ Yes ❑No
Total Buffer Impacts
219
'Label on site plan
2. Identify the square feet of impact to each zone of the riparian buffer that requires mitigation from the table above. Calculate
the amount of mitigation required.
'For projects in the Goose Creek Watershed, list all riparian buffer impacts as Zone 1
and use Zone 1 multiplier.
3. Provide a description of how mitigation will be achieved at your site pursuant to the mitigation requirements of the applicable
river basin/watershed.
On-site restoration of the 151 square feet of temporary impact was done by backfilling the trenches from the drainage pipe with
local soil to the level of the surrounding soil, spreading grass seed, and covering with wheat straw.
3a. Is buffer restoration or enhancement proposed? ❑ Yes x No
If yes, attach a detailed planting plan to include plant type, date of plantings, the date of the one-time fertilization in the
protected riparian buffers, and a plan sheet showing the proposed location of the plantings.
3b. Is payment into a buffer restoration fund proposed? ❑ Yes x No
FORM: VAR 10-2013 Page 4 of 8
Required
Zone
Total Impact
Multiplier
Mitigation
(square feet)
(square feet)
Zone 1'
_
3
TT
(2 for Catawba only)
Zone 2
_
1.5
Total Buffer Mitigation Required:
'For projects in the Goose Creek Watershed, list all riparian buffer impacts as Zone 1
and use Zone 1 multiplier.
3. Provide a description of how mitigation will be achieved at your site pursuant to the mitigation requirements of the applicable
river basin/watershed.
On-site restoration of the 151 square feet of temporary impact was done by backfilling the trenches from the drainage pipe with
local soil to the level of the surrounding soil, spreading grass seed, and covering with wheat straw.
3a. Is buffer restoration or enhancement proposed? ❑ Yes x No
If yes, attach a detailed planting plan to include plant type, date of plantings, the date of the one-time fertilization in the
protected riparian buffers, and a plan sheet showing the proposed location of the plantings.
3b. Is payment into a buffer restoration fund proposed? ❑ Yes x No
FORM: VAR 10-2013 Page 4 of 8
If yes, attach an acceptance letter from the mitigation bank you propose to use or the NC Ecosystem Enhancement
Program stating they have the mitigation credits available for the mitigation requested.
FORM: VAR 10-2013 Page 5 of 8
D. Stormwater
1. Provide a description of how diffuse flow will be maintained through the protected riparian buffers (e.g., re -planting vegetation
or enhancement of existing vegetation, gutter splash pads, level spreader to control of runoff from impervious surfaces, etc.).
Two rain gardens have been constructed (and one more is planned to be constructed) on the property outside Zone 2 of the
stream buffer and connected to the existing downspouts from the house. During construction of the rain gardens, eight black
plastic drainage pipes were discovered that previously had been connected to the downspouts and carried stormwater into the
protected buffer. These downspouts have now been directed to flow into the rain gardens and the pipes previously located in
the buffer have been removed, their footprints filled with local soil to match the surrounding ground level, and covered with
wheat straw and grass seed. Rain gardens are or have been constructed following the design in the DENR Stormwater Manual
(NCDENR Stormwater BMP Manual Chapter Revised 07-24-09; Chapter 12 - Bioretention) by a contractor (Norman Rabins of
Garden & Art Landscapes who received his Certification as a Certified Residential Rain Garden Professional on January 19, 2012
from the Stormwater Engineering Group at NC State University under the supervision of Kris Bass of Kris Bass Engineering. All
areas on the site (in or out of the protected buffer) have been seeded and covered with wheat straw.
1a. Show the location of diffuse flow measure(s) on your site plan.
1b. Attach a completed Level Spreader Supplement Form or BMP Supplement Form with all required items for each proposed
measure.
1c. Attach an Operation and Maintenance (O&M) Form for each proposed level spreader or BMP.
2. For Major, Catawba, and Goose Creek variance requests, provide a description of all best management practices (BMPs) that
will be used to minimize disturbance and control the discharge of nutrients and sediments from stormwater.
2a. Show the location of BMPs on your site plan.
2b. Attach a Supplement Form for each structural BMP proposed.
2c. Attach an Operation and Maintenance (O&M) Form for each structural BMP proposed.
E. Demonstration of Need for a Variance
The variance provision of the riparian buffer rules allows the Division or the Environmental Management Commission to grant a
variance when there are practical difficulties or unnecessary hardships that prevent compliance with the strict letter of riparian
buffer protection.
1. Explain how complying with the provisions of the applicable rule would prevent you from securing a reasonable return from or
make reasonable use of your property. Merely proving that the variance would permit a greater profit from the property shall
not be considered adequate justification for a variance. The Division will consider whether the variance is the minimum possible
deviation from the terms of the applicable Buffer Rule that shall make reasonable use of the property possible.
The project consists of a single-family home constructed in 2006. The builder purchased this lot in 2004. The City of Raleigh
notified the builder that the stream channel and riparian buffer needed to be included in the site plan for the lot. The builder
retained Sullivan Surveying to locate the stream channel on the lot and set survey pins for the house foundations to ensure that
the house would not encroach into the buffer. The house was built and scheduled to be sold in 2006. After numerous closing
delays, contract disputes, and a change order to the decks, the buyer hired Cawthorne, Moss & Panciera, PC to resurvey the
stream channel in 2009. This survey also included the stream channel on the adjacent lot (Lot 168). The new survey showed that
FORM: VAR 10-2013 Page 6 of 8
the rear deck and screened porch are partially located within Zone 2 of the riparian buffer. Both the deck and the screened
porch had concrete patios poured underneath. Figure 3 shows the location of the house, deck, and screened porch in relation to
the riparian buffers on-site. The previous consultant met with Amy Chapman on site to review the extenuating circumstances in
which the builder attempted to follow the rules but after construction discovered that a small corner of the screened porch was
located within Zone 2 of the riparian buffer. The NC Division of Water Quality issued an After -the -fact Minor Variance
Authorization on November 9, 2009 (Project Number 2009-1161) with additional conditions. During construction of the two rain
gardens built outside the buffer in order to meet Condition 5 (Diffuse Flow), eight black plastic drainage pipes were discovered
mostly in Zone 2 of the buffer that carried stormwater from the downspouts of the house. These black plastic pipes have been
removed which resulted in 181 square feet of temporary impact to the buffer (30 square feet of temporary impact to Zone 1
and 151 square feet of temporary impact to Zone 2). These areas have been backfilled to the surrounding ground surface with
top soil, seeded with grass seed and covered with wheat straw. These downspouts have now been connected to the two rain
gardens or will be connected to the remaining rain garden that is soon to be constructed.
1. Explain how the hardship results from application of the Buffer Rule to the property rather from other factors such as deed
restrictions or other hardships (e.g. zoning setbacks, floodplains, etc.).
As described above, the encroachment into the buffer was only discovered during a subsequent survey of the property on the
adjacent lot by a prospective buyer. The builder had measured the buffer from the main lot (Lot 164) during construction and
located the house to avoid impacts to the buffer. The unanticipated infringement into the buffer resulted from a subsequent
survey done on the adjacent lot (Lot 168) after the house was constructed.
2. Explain how the hardship results from physical nature of the property, such as its size, shape, or topography, which is different
from that of neighboring property.
The builder has removed the concrete patio from the riparian buffer located underneath the deck and screened porch. Because
the deck is in excess of 12 feet in height and the impervious surface that is within the buffer beneath them has been removed
from the buffer and as explained in a field meeting the Amy Chapman of the then Division of Water Quality and the previous
consultant on October 20, 2009, we understand that these features quality for the deck exemption. As described in Item 4
below in more detail, the builder measured the buffer from the main lot (Lot 164) and made certain that construction was
outside the buffer zones. Only a subsequent survey done for a potential buyer from stream located on the adjacent, upslope lot
(Lot 168) revealed that the buffer (when measured from the stream on the adjacent lot) had a small part of the screened porch
located within Zone 2 of the buffer.
The builder's architect prepared a rendition of the changes to the screened porch to remove it completely from the buffer, but
the buyer would not agree to the structural changes. Losing a contacted buyer that the builder has already invested so much
time and resources in would inflect a significant economic hardship to the builder.
3. Explain how the hardship results from physical nature of the property, such as its size, shape, or topography, which is different
from that of neighboring property.
The hardship and encroachment into a small area of Zone 2 of the buffer was only discovered during a subsequent survey from
the adjacent lot (Lot 168) which revealed that a small corner of the covered porch (38 square feet) is in Zone 2 when measured
from that adjacent lot.
4. Explain whether the hardship was caused by the applicant knowingly or unknowingly violating the applicable Buffer Rule.
The applicant carefully measured the stream buffer on the main lot (Lot 164) before construction and made certain that
construction of the house was outside the measured buffer. A subsequent survey done for a potential buyer from the stream
located on the adjacent, upslope lot (Lot 168) revealed that the buffer (when measured from the stream on the adjacent lot)
had a small part of the screened porch located within Zone 2 of the buffer (38 square feet including the wooden and brick
support columns for the deck and porch).
FORM: VAR 10-2013 Page 7 of 8
During construction of the two rain gardens as required by the Minor Variance issued by the NC Division of Water Quality on
November 9, 2009, eight black plastic drainage pipes were discovered and removed from the buffer. The downspouts for these
drainage pipes have been directed to flow into the rain gardens (one additional rain garden is planned and two downspouts will
be connected to this rain garden) and the now superfluous drainage pipes have been removed from the buffer, the ground
surface restored, and all disturbed, areas reseeded.
5. For Neuse, Tar -Pamlico, Jordan Lake and Goose Creek only: Did the applicant purchase the property after the effective date of
the applicable Buffer Rule and then request a variance?
Yes but as described above the encroachment into the buffer was unintentional and a result of a subsequent survey done by a
prospective buyer from the adjacent lot (Lot 168).
6. Explain how the hardship is rare or unique to the applicant's property, rather than the result of conditions that are widespread.
The hardship resulted from the new survey on the adjacent lot (Lot 168) as described earlier and therefore is unique to this
particular property.
F. Deed Restrictions
By your signature in Section G of this application, you certify that all structural stormwater BMPs required by this variance shall
be located in recorded drainage easements, that the easements will run with the land, that the easements cannot be changed
or deleted without concurrence from the State, and that the easements will be recorded prior to the sale of any lot.
G. Applicant's Certification
I, Charles Teague, Jr. (print or type name of person listed in Section A, Item 2), certify that the information included on this
permit application form is correct, that the project will be constructed in conformance with the approved plans and that the
deed restrictions in or ance with Section F of this form will be recorded with all required permit conditions.
Signature:
Date: S %
FORM: VAR 10-2013 Page 8 of 8
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GRAPHIC SCALE N
r+=2000' USGS LOCATION MAP
2000' 0 2000' 164 BELLEVUE
RALEIGH, WAKE COUNTY, NC
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•� Itnl,rlGl•1 WESTf�y BURDETTE LAND CONSULTING, INC. DRAWN BY: 'rMB
10212 Creedmoor Road - Raleigh, North Carolina 27615 CIIK'D BY: JA13
9 Telephone (919) 841-9977— Fax (919) 841-9909
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SURVEY FOR
AUBREY S. TOMLINSON, JR.
LOT 164, BELLEVUE TERRACE t
3519 TURNBRIDGE DRIVE
PIN #1705.11-66-7809
D.B. 11239, PG. 654 7i
B.M. 2005, PG. 1736 VICINITY MAP
CITY OF RALEIGH LEGEND:
WAKE COUNTY, NORTH CAROLINA EIP - EXISTING IRON PIPE
MARCH 30, 2009 EPK - EXISTING PK NAIL
NIP - NEW IRON PIPE SET
50 25 0 50 100 R/W - RIGHT OF WAY
CATV - CABLE TV BOX
EB - ELECTRIC BOX
TEL - TELEPHONE PEDESTAL
SCALE 1 "=50' PP - POWER POLE
OHL- OVERHEAD LINE
I j LP -LIGHT POLE
t WM - WATER METER
KENNETH M. do f J + I I WV - WATER VALVE
DEBRA B. MANESS + I I CO - SEWER CLEAN-OUT
D.B. 3192. PD. TS7 JJ I I --
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BRIDGE
I' SCkEENED 9 B M 2006 PG 315
100' NEUSE RIVER
r RIPARIAN BUFFER
(50' EACH SIDE
TOP OF BANK)
CONCRETE' PORCH
PA'DO BELOW
0.446
KI
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���. PIN /1705.11-66-7999 Q,
LINE TYPE LEGEND
PROPERTY UNE — UNE SURVEYED
— RIGHT—OF—WAY
ADJOINING UNE — UNE NOT SURVEYED
OVERHEAD LINE
— — BUILDING SETBACK
-- — — — —— EASEMENT
— BUFFER
— FLOOD HAZARD SOILS
CAWTHORNE, MOSS
& PANCIERA, P.C.
Professional Land Surnprs
333 S. White Street
Post Office Box 1253
Wake Forest, N.C. 27588
(919)556-3148
I DECLARE THAT THIS SURVEY COMPLIES WITH THE NORTH
CAROLINA STANDARDS OF PRACTICE FOR SURVEYING,
(SECTION 1600) FOR CLASS A SURVEYS AND THAT THE
CALCULATED RATIO OF PRECISION BEFORE ADJUSTMENTS
IS 1:10,000+. FURTHERMORE, PROPERTY CORNERS SHOWN
ARE PRIMARY CONTROL MONUMENTATION FOR THE RE—
ESTABLISHMENT OF PROPERTY CORNERS IN THE ABSENCE
OF GRID MONUMENTS AND OTHER SUBDIVISION PROPERTY
CORNERS. THIS SURVEY IS NOT TO BE RECORDED WITH—
OUT THE WRITTEN AUTHORIZATION OF THE SURVEYOR.
PROFESSIONAL LAND SURVEYOR L—
LINE TABLE
LINE
LENGTH BEARING
L-1
69.89' N 02'20'17"
L-2
69.62' S 28'53'52" W
L-3
69.69' N 02'21'49" F
���. PIN /1705.11-66-7999 Q,
LINE TYPE LEGEND
PROPERTY UNE — UNE SURVEYED
— RIGHT—OF—WAY
ADJOINING UNE — UNE NOT SURVEYED
OVERHEAD LINE
— — BUILDING SETBACK
-- — — — —— EASEMENT
— BUFFER
— FLOOD HAZARD SOILS
CAWTHORNE, MOSS
& PANCIERA, P.C.
Professional Land Surnprs
333 S. White Street
Post Office Box 1253
Wake Forest, N.C. 27588
(919)556-3148
I DECLARE THAT THIS SURVEY COMPLIES WITH THE NORTH
CAROLINA STANDARDS OF PRACTICE FOR SURVEYING,
(SECTION 1600) FOR CLASS A SURVEYS AND THAT THE
CALCULATED RATIO OF PRECISION BEFORE ADJUSTMENTS
IS 1:10,000+. FURTHERMORE, PROPERTY CORNERS SHOWN
ARE PRIMARY CONTROL MONUMENTATION FOR THE RE—
ESTABLISHMENT OF PROPERTY CORNERS IN THE ABSENCE
OF GRID MONUMENTS AND OTHER SUBDIVISION PROPERTY
CORNERS. THIS SURVEY IS NOT TO BE RECORDED WITH—
OUT THE WRITTEN AUTHORIZATION OF THE SURVEYOR.
PROFESSIONAL LAND SURVEYOR L—
N
�•O
s
MINIMUM AM',0UNT 20.0'
OF CONPRETE TO`�'
BE FjEMOVED
FRAM ZONE 2 � `
/
WOOD ST/AIRS
TO REMAIN `
MINIMUM,AMOUNT
OF CONCRETE TO '
BE REMOVED A„
FRQI ZONE 2
RICK DECK ,• .,,,_,
SUPPORTS TO i
REMAIN
i
NOTE: LL
1 J SEE ATTACHED SURVEY"t�ROM CATHORNE,
MOSS, AND PANCIERA,'OR LOT LAYOUT AND
FEATURE LOCATION$
M
2.) THIS AP DOES NgT/REPRESENT A SURVEY
OF SITE FEATURES✓FOR LOT 164 AND 1S TO BE
USED FOR INFOR�AATIONAL PURPOSES ONLY
GRAPHIC SCALE
V=10'
/I
i
SCREENED PORCH ABOVE
CONCRETE PATIO BELOW
DECK ABOVE
CONCRETE PATIO BELOW
NEUSE RIVER RIPARIAN BUFFER IMPACT MAP
BELLEVUE LOT 164
RALEIGH, WAKE COUNTY, NC
N DATE: 10-26-09 SCALE: 1'= 10'
' = BURDETTE LAND CONSULTING INC. DRAWN BY: TMB CHKV BY: JAB
10212 Creedmoor Road -Raleigh, North Carolina 27615 PROJECT #: 9280 FIGURE#: 3
` g Telephone (919) 841-9977 — Fax (919) 841-9909
4700 Falls of Neuse Road, Suite 300
Raleigh, NC 27609
(919)761-4626
m o f f a t t& n i c h o l www.moffaftnichol.com
MEMORANDUM
AGENT AUTHORIZATION FORM
PROPERTY LEGAL DESCRIPTION:
LOT NO. 164, Block 9, Bellevue Terrace; Book of Maps 1947, Page 79, Wake County Registry
PARCEL ID: #1705667902; Real Estate ID: 0071532
STREET ADDRESS: 3519 Turnbridge Drive, Raleigh, NC 27609
Property Owner Name Please print:
Property Owner: Teague & Skelton, Inc., Charles W. Teague, Jr., President
The undersigned, registered property owners of the above noted property, do hereby authorize
John R. Dorney, of Moffatt & Nichol, Raleigh to act on my behalf and take all actions necessary for the
processing, issuance and acceptance of this permit or certification and any and all standard and special
conditions attached.
Property Owner's Address (if different than property above):
1313 Enderbury Dr., Raleigh, NC 27614
Telephone: 919-676-7644; Fax 919-676-7049
We hereby certify the above information submitted in this application is true and accurate to the best of
akZnwledge
Signature) _ f/tom /�� Printed)
Dated: 2-12, t !e'
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Kris Bass Engineering, PLLC
625 S Lakeside Dr.
Raleigh, NC 27606
Office: 919.960.1552
Email: kbass@kbens.org
Lot 164 Bellevue Terrace
Stormwater Plan
Sub -basin: 03-02-02 (Neuse)
Hydrologic Unit: 03020201
Receiving Water: Crabtree Creek: C, NSW
Project Narrative
This project involves the construction of three rain gardens to control stormwater runoff from a
residential property. The purpose of the gardens is primarily for Neuse river buffer protection
and to prevent regular concentrated flows into the buffer area. These rain gardens have been
sized to capture runoff from the 1 inch storm. The entire 1 inch storm volume will be stored and
infiltrated into the rain garden surface and surrounding soils.
The rain gardens will collect runoff from the rooftop through a gutter and drain system. A water
test was used to confirm the area of roof draining towards each rain garden. One area of the roof
appears to drain into the ground and has no outlet that can be collected.
These rain gardens were designed using the latest guidance on Backyard Rain Gardens from NC
State University. The gardens have been sited outside of the riparian buffer boundaries on the
project site. They are located on a sloping surface, which will require minor excavation and
building of a berm to level the garden surface. Due to existing slopes, some minor shifting of the
garden locations may be done in the field to provide the best fit. Construction will be overseen
by the Project Engineer and inspected prior to final approval.
The garden surface will utilize existing soils. Infiltration testing on-site (see attached data) has
indicated these soils are suitable to provide the desired drainage rate. As a result, no media or
underdrains are proposed as a part of the rain garden plan. After grading, the surfaces will be
tilled to maximize infiltration capacity. A berm will be constructed to provide the necessary
storage depth for each garden.
Planting
Typical rain garden species have been selected for the proposed planting for the garden. The plan
includes a mixture of herbaceous species that shall be installed according to specifications and at
correct center spacing for each species of plant. The rain garden and berm shall be covered with
a minimum of 3 inches of triple shredded hardwood mulch at project completion.
Conclusions
The proposed plan will capture rooftop runoff from this residence and protect an existing riparian
buffer area. The designed rain gardens will provide both water quality and flow protection
benefits.
Soil Percolation Test - 3519 Turnbridge Drive, Raleigh, NC
Depth of water drained from hole (inches)
North Hole South Hole
Original
depth of
hole
8 inches
7 inches
Permabilit
y rate
(in/hr)
Start
5/24/2016
0 hrs
0
4.51
0
7.
16 hrs
21 hrs
5
7
40 hrs
6.5
7
47 hrs
7
7 0.4
Permit
(to be provided by DWQ)
g�oFwnrF9Q
_vs �
HGEHR 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 IIQ must be printed, filled out and submitted along with all of the required information.
1. PROJECT INFORMATION
12 hr OK
Project name
Lot 164 Bellevue Terrace
Contact name
Kris Bass
Phone number
919-960-1552
Date
January 6, 2017
Drainage area number
Sw Treatment Area
II. DESIGN INFORMATION - 1
Site Characteristics
Drainage area 550 ft2
Impervious area 550 ft2
Percent impervious 100.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
12 hr OK
Is pre/post control of the 1 -yr, 24 -hr peak flow required?
N (Y or N)
1 -yr, 24 -hr runoff depth
in
1 -yr, 24 -hr intensity
in/hr
Pre -development 1 -yr, 24 -hr peak flow
ft' /sec
Post -development 1 -yr, 24 -hr peak flow
ft3/sec
Pre/Post 1 -yr, 24 -hr peak control
ft'/sec
Storage Volume: Non -SA Waters
Minimum volume required
45.6 ft'
Volume provided
45.6 ft3 OK
Storage Volume: SA Waters
1.5" runoff volume
ft3
Pre -development 1 -yr, 24 -hr runoff
ft3
Post -development 1 -yr, 24 -hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
9 inches OK
Ponding depth of water
0.75 ft
Surface area of the top of the bioretention cell
62.0 ft2 OK
Length:
ft
Width:
ft
-or- Radius
loft OK
Media and Soils Summary
Drawdown time, ponded volume
12 hr OK
Drawdown time, to 24 inches below surface
24 hr OK
Drawdown time, total:
36 hr
In-situ soil:
Soil permeability
0.40 in/hr Insufficient. Increase infiltration rate or include underdrains
Planting media soil:
Soil permeability
in/hr
Soil composition
% Sand (by volume;
% Fines (by volume
Form SW401-Bioretention-Rev.8
June 25, 2010 Parts I and II. Design Summary, Page 1 of 3
% Organic (by volume)
Total: 0%
Phosphorus Index (P -Index) of media
(unitless)
Permit Number
(to be provided by DWQ)
Form SW401-Bioretention-Rev.8
June 25, 2010 Parts I and II. Design Summary, Page 2 of 3
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
262.00 fmsl
(Y or N)
Y (Y or N) OK media depth
261 fmsl
3 inches OK
fmsl
261 ft
ft
Are underdrains being installed? N (Y or N)
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 located 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
(81inches gravel followed by 3-5 ft of grass)
Grassed swate
Forebay
Other
Permit Numi]er
(to be provided by DWQ)
Oft
0 fmsl
_ fmsl
0 ft Insufficient distance to SHWT.
N (Y or N)
fmsl
261 ft
0
2
3 OK
n (Y or N) Excess volume must bypass cell.
y (Y or N) OK
>Sn ft
(Y or N)
Y (Y or N) OK
Y (Y or N) OK
N (Y or N) Insufficient vegetated side slopes.
N (Y or N) Insufficient ROW location.
fVsec
N (Y or N) OK
(Y or N)
Y (Y or N) OK
Form SW401-Bioretention-Rev 8
June 25, 2010 Parts I and II. Design Summary, Page 3 of 3
Permit No:
(to be assigned by DWQ)
III. REQUIRED ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
-initials Sheet No.
5A
�j uxvrVC�Pc
Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
Cell dimensions
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off-site drainage (if applicable),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
Indicate the P -Index between 10 and 30
lie 3. Section view of the bioretention cell (1" = 20' or larger) showing:
1.� Side slopes, 3:1 or lower
Underdrain system (if applicable), and
Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
Investigation request form. County soil maps are not an acceptable source of soils Information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
situ soil must include:
Soil permeability,
Soil composition (% sand, %fines, %organic), and
P -index.
�5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
C"& A variety of suitable species,
S Sues, spacing and locations of plantings,
�7 Total quantity of each type of plant specified,
C� A planting detail,
The source nursery for the plants, and
t��xFertilizer and watering requirements to establish vegetation.
fi. A construction sequence that shows how the bioretention cell will be protected from sediment until the
'"3 j-tiV� entire drainage area is stabilized.
►'�� ,, 7. The supporting calculations (including underdrain calculations, if applicable).
- 8. A copy of the signed and nolarized inspection and maintenance (I&M) agreement.
IP 2
S 9. A copy of the deed restriction,
kA
Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1
Permit Number:
(to be provided by DWQ)
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
BIORETENTION CELL SUPPLEMENT
This form must be filled out, printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information.
1. PROJECT INFORMATION
Project name Lot 164 Bellevue Terrace
Contact name Kris Bass
Phone number 919-960-1552
Date January 6, 2017
Drainage area number Lower Terrace Treatment Area
II. DESIGN INFORMATION
Site Characteristics
Drainage area 1,000 ft2
Impervious area 1,000 ft2
Percent impervious 100.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Is pre/post control of the 1 -yr, 24 -hr peak flow required?
N (Y or N)
1 -yr, 24 -hr runoff depth
in
1 -yr, 24 -hr intensity
in/hr
Pre -development 1 -yr, 24 -hr peak flow
ft'/sec
Post -development 1 -yr, 24 -hr peak flow
ft3/sec
Pre/Post 1 -yr, 24 -hr peak control
ft3/sec
Storage Volume: Non -SA Waters
in/hr
Minimum volume required
83.3 ft'
Volume provided
83.3 ft' OK
Storage Volume: SA Waters
1.5" runoff volume
ft3
Pre -development 1 -yr, 24 -hr runoff
ft3
Post -development 1 -yr, 24 -hr runoff
ft3
Minimum volume required
0 ft3
Volume provided
ft3
Cell Dimensions
Ponding depth of water
9 inches OK
Ponding depth of water
0.75 ft
Surface area of the top of the bioretention cell
112.0 ft2 OK
Length:
ft
Width:
ft
-or- Radius
10 ft OK
Media and Soils Summary
Drawdown time, ponded volume
12 hr OK
Drawdown time, to 24 inches below surface
24 hr OK
Drawdown time, total:
36 hr
In-situ soil:
Soil permeability
0.40 Whir Insufficient. Increase infiltration rate or include underdrains.
Planting media soil:
Soil permeability
in/hr
Soil composition
% Sand (by volume)
% Fines (by volume)
Form SW401-Bioretention-Rev 8
June 25, 2010 Parts I and 11. Design Summary, Page 1 of 3
% Organic (by volume)
Total: 0%
Phosphorus Index (P -Index) of media
(unitless)
Permit Number
(to be provided by DWQ)
Form SW401-Bioretention-Rev.8
June 25, 2010 Parts I and II. Design Summary, Page 2 of 3
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
268.00 fmsl
(Y or N)
Y (Y or N) OK media depth
267 fmsl
3 inches OK
fmsl
267 ft
ft
Are underdrains being installed? N (Y or N)
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 located 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
(Binches gravel followed by 3-5 ft of grass)
Grassed swale
Forebay
Other
Permit Nurnbr_r _
(to be provided by DWQ)
Oft
0 fmsl
fmsl
0 ft Insufficient distance to SHWT.
N (Y or N)
fmsl
267 ft
0
2
3 OK
n (Y or N) Excess volume must bypass cell.
y (Y or N) OK
>50 ft
(Y or N)
Y (Y or N) OK
Y (Y or N) OK
N (Y or N) Insufficient vegetated side slopes.
N (Y or N) Insufficient ROW location.
ft/sec
N (Y or N) OK
r (Y or N) OK
Y (Y or N) OK
Form SW401-Bioretention-Rev S
June 25, 2010 Parts I and 11 Design Summary, Page 3 of 3
ill. REQUIRED ITEMS CHECKLIST (to be assigned by OWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
nftials Sheet No.
fl
fi
let
S
C
4 ��
5. A construction sequence that shows how the bioretention cell will be protected from sediment until the
entire drainage area is stabilized.
7 7, The supporting calculations (including underdrain calculations, if applicable).
8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
X7 9 C
9. A copy of the deed restriction.
Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out,
Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Clean out pipe locations,
Overflow device, and
- Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
- Cell dimensions
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Design at ultimate build -out,
Off-site drainage (if applicable),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
Indicate the P -Index between 10 and 30
3. Section view of the bioretention cell (1" = 20' or larger) showing:
- Side slopes, 3:1 or lower
Underdrain system (if applicable), and
Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigalon, soll borings, and infillration tests, The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsi). Results of soils tests of both the planting soil and the in
situ soil must include:
- Soil permeability,
Soil composition (% sand, %fines, %organic), and
P -index.
A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
A variety of suitable species,
Sizes, spacing and locations of plantings,
Total quantity of each type of plant specified,
-A planting detail,
The source nursery for the plants, and
Fertilizer and watering requirements to establish vegetation.
Form SW401-Bioretention-Rev,7 Part III, Page 1 of 1
Permit Number.
(to be provided by DWQ)
o`'o� w rbc
Y
� r
HCDENR 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 Lot 164 Bellevue Terrace
Contact name Kris Bass
Phone number 919-960-1552
Date January 6, 2017
Drainage area number Upper Terrace Treatment Area
II. DESIGN INFORMATION
Site Characteristics
Drainage area 1.100 ft2
Impervious area 1,100 ft2
Percent impervious 100.0% %
Design rainfall depth 1.0 inch
Peak Flow Calculations
Is pre/post 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)
Form SW401-Bioretention-Rev 6
June 25, 2010
N (Y or N)
In
in/hr
ft3 /sec
ft3/sec
ft3/sec
91.7 ft3
91.7 ft3 OK
ft3
W
ft3
0 ft3
—ft3
9 inches OK
I
rollbir,
123.0 ft2 OK
�ft
'ft
10 ft OK
12 hr OK
24 hr OK
36 hr
0 40 in/hr Insufficient. Increase infiltration rate or Include underdrains.
in/hr
Parts I and II Design Summary, Page 1 of 3
% Organic (by volume)
Total: 0%
Phosphorus Index (P -Index) of media
(unitless)
Permit Number.
(to be provided by DWQ)
Form SW401-Bioretention-Rev.8
June 25, 2010 Parts I and 11 Design Summary, Page 2 of 3
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
272.00 fmsl
(Y or N)
Y (Y or N) OK media depth
271 fmsl
3 inches OK
fmsl
271 ft
ft
Are underdrains being installed? N (Y or N)
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
(Sinches gravel followed by 3-5 ft of grass)
Grassed swale
Forebay
Other
Permit Number:
(to be provided by DWQ)
Oft
0 fmsl
_ fmsl
0 ft Insufficient distance to SHWT.
N (Y or N)
fmsl
271 ft
0
2
3 OK
n (Y or N) Excess volume must bypass cell.
y (Y or N) OK
>Sn ft
(Y or N)
Y (Y or N) OK
Y (Y or N) OK
N (Y or N) Insufficient vegetated side slopes.
N (Y or N) Insufficient ROW location.
ft/sec
N (Y or N) OK
n (Y or N) OK
Y (Y or N) OK
Form SW401-Bioretention-Rev 6
June 25. 2010 Parts I and 11 Design Summary, Page 3 of 3
(to be assigned by DWQ)
lit. REQUIRE€? ITEMS CHECKLIST
Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project Initial in the space provided to
indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a
requirement has not been met, attach justification.
Pagel Plan
ntials Sheet No.
5k&C_1. Plans (1" - 50' or larger) of the entire site showing:
Design at ultimate build -out,
1 Off-site drainage (if applicable),
Delineated drainage basins (include Rational C coefficient per basin),
Cell dimensions,
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
2. Plan details (1" = 30' or larger) for the bioretention cell showing:
j Cell dimensions
Pretreatment system,
High flow bypass system,
Maintenance access,
Recorded drainage easement and public right of way (ROW),
C -t Design at ultimate build -out,
S Off-site drainage (if applicable),
Clean out pipe locations,
Overflow device, and
Boundaries of drainage easement.
-Indicate the P -Index between 10 and 30
3. Section view of the bioretention cell (1" = 20' or larger) showing:
Side slopes, 3:1 or lower
Underdrain system (if applicable), and
Bioretention cell layers [ground level and slope, pre-treatment, ponding depth, mulch depth, fill media
depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable),
SHWT level(s), and overflow structure]
4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The
results of the soils report must be verified in the field by DWQ, by completing & submitting the soils
Investigation request form. County soil maps are not an acceptable source of soils information. All
elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in
situ soil must include:
,$ Soil permeability,
Soil composition (% sand, %fines, %organic), and
P -index.
Yr �o 5. A detailed planting plan (1" = 20' or larger) prepared by a qualified individual showing:
C' -A variety of suitable species,
Sues, spacing and locations of plantings,
^^ll - Total quantity of each type of plant specified,
-A planting detail,
- The source nursery for the plants, and
Fedllzer and watering requirements to establish vegetation.
6. A construction sequence that shows how the bioretention cell will be protected from sediment until the
entire drainage area Is stabfllxed.
�I �t�ttf
7. The supporting calculations (including underdrain calculations, if applicable).
- 8. A copy of the signed and notarized inspection and maintenance (I&M) agreement.
ds
9. A copy of the deed restriction,
t
Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1
Permit Number:
(to be provided by DWQ)
Drainage Area Number: 5 -PA Cls Q,
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:
j 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 a2phcation.
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
a plicable).
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 roblems 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 0&M-Rev.3 Page 1 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 prur ing 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.
Tree 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
BNII' element:
Potential roblems:
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 droj2 inlet.
The receiving water
Erosion or other signs of
Contact the NC Division of Water
damage have occurred at the
outlet.
Quality 401 Oversight Unit at 919 -
j 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 parry.
Project name: " + t )
1 I�Yt,I 11itC
d
BMP drainage area number: 50 T
Printname: Teaque & Skelton, Inc.
Title: Charles W Teague, Jr_, Pr _gz knt-
Address: 1313 Enderbury Drive, Raleigh, NQZth Carolina 27614
Phone:
Signat
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.
day of December ,
r
a Notary Public for the State of
. do hereby certify that
)ersonally appeared before me this. 2 o-
2 016 , and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
N0 TA sem,
x hey Comm Expii '
M 4 res
May , 2019
AUBLIG
"1COUNI,•
111111110"ti
SEAL
My commission expires 4, z-6) q
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4
r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
November 9, 2009
DWQ Project # 2009-1161
County: Wake
Teague & Skelton Inc
Attn: Mr. Charles W. Teague
8368 Six Forks Road
Suite 204
Raleigh, NC 27615
Subject Property: Belleview Terrace Lot 164, Raleigh, NC
UT to Crabtree Creek [030402, 27-33-(10), C, NSW
AFTER -THE -FACT AUTHORIZATION of Neuse River Buffer Rule (15A NCAC 02B.0233)
Authorization Certificate
Dear Mr. Teague:
You have our after -the -fact authorization, in accordance with 15A NCAC 02B .0233 and any conditions
listed below, to impact approximately 0 ft2 of Zone 1 and 38 ft2 of Zone 2 of the protected riparian buffers
for the purpose of constructing the deck at the subject property as described within your application dated
October 26, 2009, received by the Division of Water Quality (DWQ) on November 2, 2009. In addition;
you should obtain or otherwise comply with any other required federal, state or local permits before you
go ahead with your project including (but not limited to) Erosion and Sediment Control, Non -discharge
regulations.
This authorization certification is for the purpose and design that you described in your application. If
you change your project, you must notify us and you may be required to send us a new application. If the
property is sold, the new owner must be given a copy of this authorization letter and is thereby
responsible for complying with all conditions. This authorization requires you to follow the conditions
listed below.
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
Amount Approved nits) Plan Location or Reference
Zone 1 Buffers 0 (square ft.) A2plication
Zone 2 Buffers 38 square ft.) Application
2. Erosion & Sediment Control Practices
401 Oversight/Express Review Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd., Raleigh, North Carolina 27604
Phone: 919-733.17861 FAX: 919-733893
Intemet: http:A2o.enr.state.nc.us)ncwetandsl
An Equal Opportunity 1 Affirmative Acton Employer
NO�1thCarohna
Teague and Skelton, Inc
Page 2 of 3
November 5, 2009
Erosion and sediment control practices must be in full compliance with all specifications
governing the proper design, installation and operation and maintenance of such Best
Management Practices in order to protect surface waters standards:
a. The erosion and sediment control measures for the project must be designed, installed,
operated, and maintained in accordance with the most recent version of the North
Carolina Sediment and Erosion Control Planning and Design Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal, or exceed, the requirements specified in the most
recent version of the North Carolina Sediment and Erosion Control Manual. The devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
including contractor -owned or leased borrow pits associated with the project.
c. For borrow pit sites, the erosion and sediment control measures must be designed, installed,
operated, and maintained in accordance With the most recent version of the North Carolina
Surface Mining Manual.
d. The reclamation measures and implementation must comply with the reclamation in
accordance with the requirements of the Sedimentation Pollution Control Act.
3. No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond
the.footprint of the impacts depicted in the Pre -Construction Notification. All construction
activities, including the design, installation, operation, and maintenance of sediment and erosion
control Best Management Practices, shall be performed so that no violations of state water quality
standards, statutes, or rules occur.
4. No Sediment & Erosion Control Measures w/n Wetlands or Waters
Sediment and erosion control measures shall not be placed in wetlands or waters without prior
approval by the Division. If placement of sediment and erosion control devices in wetlands and
waters is unavoidable, design and placement of temporary erosion control measures shall not be
conducted in a manner that may result in dis-equilibrium of wetlands or stream beds or banks,
adjacent to or upstream and down stream of the above structures. All sediment and erosion
control devices shall be removed and the natural grade restored within two (2) months of the date
that the Division of Land Resources or locally delegated program has released the project.
5. Diffuse Flow
An additional condition is that all stormwater shall be directed as diffuse flow at non-erosive
velocities through the protected stream buffers and will not re -concentrate before discharging into
the stream as identified within 15A NCAC 2B .0233(5).
6. Protective Fencing
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved under this authorization shall be clearly marked with orange warning fencing
(or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15A
NCAC 2B .0233.
7, Certificate of Completion
Teague and Skelton, Inc
Page 3 of 3
November 5, 2009
Upon completion of all work approved within this authorization, and any subsequent
modifications, the applicant is required to return the attached certificate of completion to the 401
Oversight/Express Review Permitting Unit, North Carolina Division of Water Quality, 1650 Mail
Service Center, Raleigh, NC, 27699-1650,
8. Deed Notifications
Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands,
waters and protective buffers in order to assure compliance for future wetland, water and buffer
impact. These mechanisms shall be put in place at the time of recording of the property, or of
individual lots, whichever is appropriate. A sample deed notification can be downloaded from the
401/Wetlands Unit web site at: http://h2o.enr.state.nc.us/ncwetlands. The text of the sample deed
notification may be modified as appropriate to suit to this project.
Any disputes over determinations regarding this Authorization (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision
is subject to review as provided in Articles 3 and 4 of G.S, 150B. This Authorization shall expire
five (5) years from the date of this letter.
This letter completes the review of the "No Practical Alternatives" determination under 15A NCAC 2B
.0233. If you have any questions or would like a copy of the buffer rules, please call Amy Chapman or
Cyndi Karoly at (919) 733-1786. This letter does not authorize any impacts to either Waters of the
United States or Waters of the State. Please contact the US Army Corps of Engineers (USACE) or NC
Division of Water Quality (DWQ) if any impacts are proposed to either of theme waters.
no
CHS/ijm/asc
Enclosures: Certificate of Completion
Coleen H. Sullins
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
DLR Raleigh Regional Office
Jennifer Burdette, Burdette Land Consulting, Inc, 10212 Creedmoor Rd, Raleigh, NC 27615
File Copy
Filename: 091161BeIIeviewLod 64(Wake)NBR