20130570 Ver 2_Emails_20140628

Burdette, Jennifer a
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Hi Jennifer and Annette,
Byron Trimmer <btrimmerl @yahoo.com>
Saturday, June 28, 2014 10:46 PM
Lucas, Annette; Burdette, Jennifer a
Jessica Trimmer
BMP documents for Rain Garden at 8909 Oxbridge Ct...
Construction Order for 8909 Oxbridge Ct.docx; rain garden dimensions 2.pdf,
updated survey with deck and easement.pdf, Supplement_Bioretention_Rev.9
_Trimmer.xls; Bioretention Operation and Maintenance Agreement - Trimmer.docx;
Covanents for 8909 Oxbridge Ct.docx
Here is my first pass at the final BMP docs for the rain garden. It took a bit longer than I had
hoped. Please review and let me know if this meets the requirements and what, if any, changes or
additions need to be made.
Thanks,
Byron

Construction Order for 8909 Oxbridge Ct.
1) Dig base for rain garden footprint (4'x15') to a depth
of 2' below grade.
2) Remove in sutu soil and replace with amended sand
(88 %), fines (10 %), and organic (2 %) mixture.
3) Replace 1" of soil removed for growth medium.
4) Create slope and walls for the garden to establish the
correct 1' ponding depth.
5) Create overflow outlet at the low point on the design
(to be determined once berm walls are created) and
line with rock to minimize erosion
6) Sod garden to establish plant medium
7) Plant Iris's along uphill side of the garden
All deck construction is on level or downhill from the
location of the rain garden and any runoff from the
construction is not in the inflow for the rain garden.

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SITE LOCATION $909 oxen
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CORNER FALLS AT T 0
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BM 1994, PG 213
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IDLE CT. TOWNSHIP: LEESVILLE ZONED: R -4
RALEIGH, NC 27613
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PROPERTY OF:
SCALE: 1 "= 30'
BYRON TRIMMER & JESSICA TRIMMER
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LOT 1278, STONEHENGE 18 SUBDIVISION
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PIN: 0798.13 -03 -5388
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NOTE:
SITE
1-ALL DISTANCES ARE HORIZONTAL GROUND DISTANCES.
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2. PROPERTY SUBJECT TO ALL EASEMENTS OF RECORD THAT A TITLE SEARCH MAY IDENTIFY.
3. SURVEY
X
PERFORMED WITHOUT TITLE SEARCH.
0
4. ALL DASHED LINES REPRESENT LINES NOT SURVEYED.
5. AREA DETERMINED BY COORDINATE METHOD.
BRENNAN DRIVE
6, NOT FOR SALES OR CONVEYANCES, FOR PERMITTING ONLY.
VICINITY MAP(NTS)
/
REFERENCES:
� IN FEET )
OB 12011, PG 1411
+. MICHAEL PRESTDN TUTT, CERTIFY THAT THIS MAP WAS
DRAWN UNDER MY SUPERVISION FROM AN ACTUAL SURVEY
BM 1994, PG 213
- * _
AND FROM REFERENCES NOTED: THAT THE BOUNDARIES NOT
I IMPERVIOUS SURFACE DATA
EXISTING:
HOUSE= 1982 SF
/
DRIVEWAY, SIDEWALK= 855.8 SF
TOTAL- 2837 -8 SF, 14.2%
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SITE LOCATION $909 oxen
LOT 1279
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'994,
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CORNER FALLS AT T 0
HYDRANT /
1 OXBRIDGE COURT
I 50' PRIVATE RIGHT OF
WAY
BM 1994, PG 213
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IDLE CT. TOWNSHIP: LEESVILLE ZONED: R -4
RALEIGH, NC 27613
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SCALE: 1 "= 30'
DATE OF SURVEY -
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+. MICHAEL PRESTDN TUTT, CERTIFY THAT THIS MAP WAS
DRAWN UNDER MY SUPERVISION FROM AN ACTUAL SURVEY
- * _
AND FROM REFERENCES NOTED: THAT THE BOUNDARIES NOT
L -4443 _=
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sURVEYED ARE CLEARLY INDICATED As DRAWN fR01d
INFORMATION AS NOTED. THAT THE RATIO OF PRECISION AS
ANGLE RIGHT
LAND SURVEYING PLLC
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CF cC ATED VA 100.000t.WITNESS 4T ORKaNAL SIGNATURE,
MAY 2 AD., 2014.
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919 -810-4324
NC
LIC. / P -0446
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MICHAEL P. TUTT, PLS L -4443
603 HARDING STREET
RALEIGH, NC 27604

Permit Number:
(to be provided by DWQ)
W A Tj�-IT
„© G
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 III) must be printed, filled out and submitted along with all of the required information.
Project name Trimmer Deck Expansion
Contact name Byron Trimmer
Phone number 919 - 676 -3878
Date June 6, 2014
Drainage area number 1
Site Characteristics
Drainage area
900 ft2
Impervious area
900 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?
(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
ft3 /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
Minimum volume required
ft
Volume provided
ft
Storage Volume: SA Waters
1.5" runoff volume
ft
Pre - development 1 -yr, 24 -hr runoff
ft
Post - development 1 -yr, 24 -hr runoff
ft
Minimum volume required
0 ft3
Volume provided
ft
Cell Dimensions
Ponding depth of water
12 inches
OK
Ponding depth of water
1.00 ft
Surface area of the top of the bioretention cell
60.0 ft2
OK
Length:
15 ft
OK
Width:
4 ft
Insufficient length
-or- Radius
ft
Media and Soils Summary
Drawdown time, ponded volume
12 hr
OK
Drawdown time, to 24 inches below surface
48 hr
Insufficient 24 -inch drawdown time.
Drawdown time, total:
60 hr
In -situ soil:
Soil permeability
6.00 in /hr
OK
Planting media soil:
Soil permeability
6.00 in /hr
OK
Soil composition
% Sand (by volume)
88%
OK
% Fines (by volume)
10%
OK
% Organic (by volume)
2%
Organic should be -3 -5%
Total: 100%
Phosphorus Index (P- Index) of media
12 (unitless)
OK
Form SW401- Bioretention -Rev.8
June 25, 2010
Parts I and II. Design Summary, Page 1 of 2

Basin Elevations
Temporary pool elevation
Type of bioretention cell (answer "Y" to only one of the two
following questions):
Is this a grassed cell?
Is this a cell with trees /shrubs?
Planting elevation (top of the mulch or grass sod layer)
Depth of mulch
Bottom of the planting media soil
Planting media depth
Depth of washed sand below planting media soil
Are underdrains being installed?
364.00 fmsl
y (Y or N) OK
n (Y or N)
363 fmsl
inches
fmsl
363 ft
ft
n (Y or N)
Permit Number:
(to be provided by DWQ)
How many clean out pipes are being installed? 0 Insufficient number of clean out pipes provided.
What factor of safety is used for sizing the underdrains? (See n/a Insufficient factor of safety.
BMP Manual SectlOn
y
Additional distance between the bottom of the planting media and
0 ft
the bottom of the cell to account for underdrains
Bottom of the cell required
0 fmsl
SHWT elevation
n/a fmsl
Distance from bottom to SHWT
#VALUE! ft
Internal Water Storage Zone (IWS)
y
Does the design include IWS
N (Y or N)
Elevation of the top of the upturned elbow
n/a fmsl
Separation of IWS and Surface
#VALUE! ft
Planting Plan
Number of tree species
0
Number of shrub species
0
Number of herbaceous groundcover species
0 Recommend more species.
Additional Information
Does volume in excess of the design volume bypass the y (Y or N) OK
bioretention cell?
Does volume in excess of the design volume flow evenly distributed
#VALUE!
#VALUE!
through a vegetated filter? y (Y or N) OK
What is the length of the vegetated filter? 35 ft
Does the design use a level spreader to evenly distribute flow? n (Y or N) Show how flow is evenly distributed.
Is the BMP located at least 30 feet from surface waters (50 feet if
y
(Y or N)
OK
SA waters)?
Is the BMP localed at least 100 feet from water supply wells?
y
(Y or N)
OK
Are the vegetated side slopes equal to or less than 3:1 ?
y
(Y or N)
OK
Is the BMP located in a proposed drainage easement with access
y
(Y or N)
OK
to a public Right of Way (ROW)?
Inlet velocity (from treatment system)
1 ft /sec
OK
Is the area surrounding the cell likely to undergo development in
n
(Y or N)
OK
the future?
Are the slopes draining to the bioretention cell greater than 20 %?
n
(Y or N)
OK
Is the drainage area permanently stabilized?
y
(Y or N)
OK
Pretreatment Used
(Indicate Type Used with an "X" in the shaded cell)
Gravel and grass
(8 +inches gravel followed by 3 -5 ft of grass)
Grassed swale
X
OK
Forebay
Other
Form SW401- Bioretention -Rev.8
June 25, 2010 Parts I and II. Design Summary, Page 2 of 2

Bioretention Operation and Maintenance Agreement for
8909 Oxbridge Ct., Raleigh, NC 27613
The bioretention cell established at 8909 Oxbridge Ct will be maintained on a regular basis. In
accordance with the maintenance schedule as recommended by the North Carolina
Cooperative Extensive (http: / /www.bae.ncsu.edu/ topic /raingarden /maintenance.htm).
Once the bioretention cell is established, it will be inspected monthly and within 24 hours after
every storm event greater than 1.0 inches. The inspection will look for damage both to the
earthen berm and the plants within the garden.
BMP Element:
Potential Problem
How I will repair the problem:
Mulch
Mulch may be lost due to flow
Mulch Annually (2 -3 inches) to
or degredation over time
maintain moisture and prevent
compaction of the soil.
Water flow:
Sediment may build up in the
The bioretention cell will be
garden.
installed post- construction and
the flow of water from the
down spouts will be monitored
(monthly), and excess
sediment (on top of the mulch)
will be removed.
Maintain plants:
Weeds, overgrowth, drought
Weeding will be performed
monthly. Plants will be
pruned as needed. Plants in
the garden will be watered as
needed during periods of little
rainfall.
Overall garden:
Trash, debris, dead vegetation
Trash and debris (from
surrounding trees) will be
removed as needed. Dead
vegetation will be removed
and replaced as needed.
Bioretention Cell O &M for 8909 Oxbridge Ct, Raleigh, NC 27613

I agree to maintain the above described bioretention cell as described above. As described in
the protective covenants for the property at 8909 Oxbridge Ct, Raleigh, NC 27613, 1 will notify
the DWQ of any intention to stop maintenance or remove the bioretention cell.
Print Name:
Address:
Phone:
Signature:
Date:
IN WITNESS THEREOF, , has executed the above and foregoing
instrument of Protective Covenants, this the day of , 20
STATE OF
COUNTY OF
PERSONALLY appeared before me, the undersigned authority in and for the jurisdiction
aforesaid, on this the day of , 20 , within my jurisdiction, the
within named , who acknowledged that he is and that in
said representative capacity he executed and delivered the above and foregoing
instrument, as said Trust's own act and deed, after first having been duly authorized to
do so.
GIVEN UNDER my hand and Official Seal of Office this the day of
, 20
NOTARY PUBLIC
My Commission Expires-
2
Bioretention Cell O &M for 8909 Oxbridge Ct, Raleigh, NC 27613

PROTECTIVE COVENANTS FOR THE PROPERTY AT
8909 OXBRIDGE CT, RALEIGH, NC
The undersigned, , being the OWNER of all that certain land and
property lying and being situated in the City of , County,
, consisting of Lot , in the subdivision of according
to a map or plat thereof on file and of record in the office of the Clerk of
County, and being desirous of imposing certain protection for itself and all future
owners and purchasers of the property, does hereby covenant and agree with reference to said
lot, and future owners of said lot, that for a period of ten (10) years from the date of this
instrument the following protective covenants and restrictions shall apply and be legally
enforceable to the above mentioned lot, to -wit:
1. On the above named property is an unnamed tributary to Hare Snipe Creek and a
protected Neuse River riparian buffer.
2. New direct discharges of stormwater runoff through the buffer to the stream are
prohibited.
3. The Owner and all successors -in- interest are prohibited from filling, draining, or creating
impacts to the existing riparian buffer vegetation and /or altering the rain gutters and bio- retention
area without approval, except where alteration of the gutters does not change the flow of water
and is for the purposes of gutter and /or home maintenance. All existing use applications are
exempt from this limitation per the Neuse River Riparian Area Protection Rule (15A NCAC 2B
.0233 (3)(b)(i) ).
4. The Site is required to have rain gutters and a bio- retention area and these shall remain in
place and be used and maintained on a regular basis.
5. The Division of Water Resources (or its successors -in- interest) shall be given written
notification of any proposal to remove or modify the Stormwater Management Plan.
6. These covenants shall run with the land and shall be binding upon all parties and all
persons claiming under them for a period of ten (10) years from the date of this instrument, at
which time the covenants shall be automatically extended thereafter for successive ten (10) year
periods unless written approval from the Division of Water Resources (or its successors -in-
interest) to remove the covenants is obtained. These covenants shall become null, void, and of
no further effect if at any time the Neuse River Riparian Area Rule (15A NCAC 2B .0233) is
repealed, modified, or altered, removing the requirements on the above mentioned lot, or if a
new Rule, Law, or Statue is ever passed, or signed into law, removing the requirements on the
above mentioned lot.

IN WITNESS THEREOF, , has executed the above and foregoing instrument
of Protective Covenants, this the day of , 20
STATE OF
COUNTY OF
PERSONALLY appeared before me, the undersigned authority in and for the jurisdiction
aforesaid, on this the day of , 20 , within my jurisdiction, the within
named , who acknowledged that he is and that in said
representative capacity he executed and delivered the above and foregoing instrument, as said
Trust's own act and deed, after first having been duly authorized to do so.
GIVEN UNDER my hand and Official Seal of Office this the day of , 20
NOTARY PUBLIC
My Commission Expires: