SW6120102_APPROVED PLANS_20120302

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW 4� 4Z42A
DOC TYPE
❑ CURRENT PERMIT
PAPPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION.INSPECTION
DOC DATE
281 �
YYYYM M D D

rm WAV, 11 m& up ,dA
Vicinity Map (1 inch 2,000 feet)
T
7
Sandhft'lls Classical
7�
T,
4
"Al
8 Christian School
A"
w Southern Pines, North
Bioretention
Carolina
Development
For
Sandhills
Classical
Christian School
650 Pee Dee Road
Southern Pines,
77
01, i
_71
7
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A
DRAWING INDEX
Cover Sheet Cover
Bioretention Layout Plan. Cl
Bioretention Details
C2
Plans
NC 28387
Appro%,e,3
ru c,
S,c, 1A -I� ?--,
CL
DRAM
BCH
Uj
�SGALE-
As Noted
DATE,
Z
01-06-12
JOB Hkem—
OqOO520
DRAKFU -KEY.
Cover

Legend:
IPF
= Iron Pipe Found
IRF
= Iron Rod Found
cw
= Concrete Monument Found
PKF
= PK Nall Found
PK5
= PK Nail Set
-
= Right of Way
= Boundary Line
-------- = Adjacent Property Lines not Surveyed
-•--------- = Building Setback Lines
= Landscoping/5creening Buffer
= Existing Contour
------400—
= Proposed Contour
---v%-
= Approximate Location of Existing Waterline
®..—
= Proposed storm Drainage
419591
= Proposed Spot Elevation
OP
= 10' Pine (typ)
= Existing Tree to be Removed
t
= Light Pole
= Utility Pole
oFU
= Overhead Utility
0
= Water Meter
= Water Valve
= Fire Hydrant
w
= Waterline
©
= Sanitary Sewer Mci nhole
55
= Sanitary 5ewerline
0
= Sanitary Sewer 5tubout
0
= curb Inlet
= Storm Drain Manhole
CMP
= Corrugated Metal Pipe
Rap
= Reinforced Goncrete Pipe
HDPE
= High Density Polyethylene Pipe
References:
Plat Cabinet 1, Slide 331
Moore county Registry
Owner/Developer
5andnill5 Pre�by Ion Church
650 Pee Dee Rd.
Southern Pines, NG 28381
910-948-2114
General Notes:
This map Is not in accordance with G5 41-30
Area by coordinate method.
Dashed lines not surveyed, drawn from Information Indicated.
Contour Interval = 1, based on assumed datum.
Property is currently zoned R5-3
This property does not fall Inside a FEMA designated floodplain.
This property Is located in a WS III FIQW water supply watershed.
There are no visual encroachments other than those shown
hereon.
Neal Smith Engineering, Inc. did not perform a boundary survey.
Boundary drawn by Information indicated. (Pc 1 Slide 531)
No wetlands on site.
Any borrow material brought onto this site must be from a legally
pitted mine site or other approved source. A single-vse
borrow or waste area site In only permissible if It Is operated
under control of the financially responsible person or firm that Is
developing this site. An approved erosion and sediment control
plan Is required for all single use borrow and waste 51te5.
Tome of gou40pn [Phea"
1568r316
Zoned: R53
DRAINAGE AREA
Total Impervious: 10,013 5F
Total Area: 25,118 SF
Percent Impervious: 39.1%
;4ORETENTION
SO
e ..
- ..:.
;
Required:
Provided:
Downstream recelving stream
Stream Classification
99000100
Book 1483, Page 100
R5-3
Property does Ile within a Public
Water Supply Vkitershed. HQW
Umamed tributary to MITI Creek
Gape Fear River Bash
North
Per PC 1 51- 331
titi9� O "Coo untly off Cora"
1534/94
Zoned: FRR-GD
9y
Zoned: R53
-5
Sp9•p53
S2E•35 58"W
S26'43'38'W 117.2$ i
BloreteMlon Area - S26'14'20'W
See Detail Sheet - e�
366.32' - - - - F�
r
33' Level 5preader
50' Filter 5trlp - - - - _ " De..er eon Pocu
See Detain Sheet �d
/ O � • , - ®,Q. -.. Spares Plaid " - - � -_ /'
/ 12' RCP O _ ��satp¢� �KkT
Berm/da sod --' ' ' _ 3 Tempaay Slit Fence
«•�
/ Lined F 4e „ - See Detail sheet _ r1r-ea r ,r„�•�a 4rea T
Cb�� 1%6. rco !net
J Rn6.56
.
"N00PO COUI`.. 4521b
�.
/ +
one Fd RR
xlstln�
Z
/ Foram3 1i-ooFFEt
450.50' \
45350 u t• �G
Pad Ebv=
/ Permanent R \ \
/ Diversion q6
fox
_ i spa S
\
—Existing
Kim 4401.2G \
1114 .:. m. 4451
6 37q2 � � _
t � \
20486•
sr-
GoTenpore
i -... Truck Access Only _
/ T Gravel-' '
/. Entrance e. ® \
j See Detail Sheet
urb nlat
/ Paved ParKIng Ar ea �ZI"' 4 3.4(
/ t 3uli�alr.y
Zoned: R53 t
SS a / -� Jrb Inge r'E"
60i
er [- �uw rv,: 456.54 - - Ph: 45 7.29'
Inv.: 454j�, \
'
T acrbdhMa ftaby dad Church" /
/.
/ { 1483/100 /
Zoned: R53 / Otis
L_/. �.
P
Approximate Lacatlon --'"
Of Existing Water Lire -
i N3737 E9'
w `b `� eon n — 1
PEE OEE R0.4D
1
Approved. r P --'t Docurnenfs
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1411entJ r " - "` 49
Su3U1T)30a i:nWa„ ' ,.� P3:%oid
C3oOV( �Q, n oOO LOMOO U�
Scale : I" = 50'
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kin =. Tnae G ...i 1..... I'): Min cl d" C..r 'I v,. A' Min I
i
OTY UNIT
I Vf-B
I
1 5PGGIE5 AND 512E
2 EA.
— -
1 R
--
Rusty BlackhQW VlburnunNibumhhum rvFidulurrJ 25' CiThl Or larger
-
4 EA
I Q
Red Ctnokeberry(Aronla arbutlfoll) 3 gallon or larger
2 EA
- —�
Jersey tea Geahothus(Geahothus americans) 3 gallon or larger
4 EA.
Carolina Rose(Rosa ca^olirW 3 gallon or larger
Overflow Yard Inlet
Rim: 439.15'
/ Invert: 48B.T9
Outlet 12' RGP
Slope
Lore: 28
Outlet Invert: 439 60
3:1 Max.
- 9" Maxln
rthur
i- Fore"
I Pondhg Depth
! /
Top Elevation 43q.9 '
i
iPonding Elevation 43q.-I5'
Fore" Weir Elevation 4 .-6
/
Top of Planting Soil Elevation 43CIDO'
/
Forebay Bottom Elevation 4 1.00'
�I F
i
(Planting Soil Bottom Elevation 43600'
3' Planting Soil Depth
5easonal Water Table Elevation
so r m.
Bioretention Elevations
Scale: Now
North
Per PG 1 5L 331
439.75'
C,RAPHIC SCALE (Feeu
13
13
Scale: 1" = 30'
Hex hatched area
for Creeping Blue Star
(Amsonla cllliata)
Mellow Marsh Fauns, Inc.
1312 Woody Store Road
Slier City, NG 2-1344
4119-142-1200
Ernst Conservatlon Seeds, LP
1-800-873-3321
General Planting Notes:
Trees and shrubs shall be planted at a minimum of
I tree/shrub per 100 s.f.
Trees shall be planted In the general locations Indicated
Grass hatched area
and spaced a minimum of 12 feet apart.
for Daylllly
Enf((Hemerocgllls j
Shrubs shall be planted In the general location Indicated
area to bfeeded
and spaced a minimum of b feet apart.
with Goneflower(Echnacea
pu-purea>)
Herbaceous ground cover shall be planted In the designated
Maintenance:
hatched aneos.(see Planting Gulde)
52L
Gon5truction 5equence:
Visually Inspect and repair erosion monthly.
Check pH yearly and apply limestone accordingly.
I. Install all sediment and erosion devices prior to beginning construction of the bioretention unit.
All construction activities after the completion of the bl retention cell shall provide adequate
sediment and erosion control measures to avoid sediment entering the bloretentlon cell.
2. Grade site to elevations shown on plan. If applicable, construct curb openings and/or remove
Re -mulch any void areas by hand as needed.
replace existing concrete. All stormwater entrances to bloretentlon unit should be blocked or
other measures made to prevent drainage from entering construction area.
Remove previous mulch layer and apply new mulch layer once
Add fresh mulch every b months, In the spring aid fall.
every two to three years. 3. Stabilize grading within Limit of Dlsturbarice except for the bloretention area.
4. Excavate bloretentlon area to proposed Invert depth and scarify the existing soil surfaces,
taking care not to compact the Insist materials.
PLANTS
5. Install uhdercisin system and observation wells, If specifled.
Immediately after the completion of cell construction, water plant material for 14 consecutive 6. Backflll bloretentlon area with sand bed and then planting soll.(If applicable)
y o p 1. wet down the planting soil prior to planting vegetation to allow for settlement.
C1095- 8. Excavate or fill to achieve proper design grade, leaving space for the upper layer of mulch
Remove and replace all dead and diseased vegetation considered beyond treatment twice a that will bring the surface to final grade
year. 4. Plant vegetation.
Treat all diseased trees and shrubs as needed and using the least toxic methods. 10. Mulch and install erosion protection at entrance points. Remove sediment control measures
Replace any cleficient stakes or wires as needed.
Replace support stakes once a year.
or entrance blocks with Inspector authorization.
Diversion
i
Transition Section
20 Ft. Min. A
Diversion Grade Not To yee
Exceed 1%
Grade = 0%" Undisturbed Soil
' r Maximum Slope 10%
u?
Width = W = 6
r� - Concrete Lip
NOTES: E -'- /1 L T'. I-O L�!`iEF'� IV OUT! xA -
I. Ends of spreader shall be tied Into higher ground to preventflowsound the level spreader.`AO t �
Law( � OpmaCo�` ey D� (WaH SNP' 3 0� '% 6,
Scale: None
� II�TjI�
439.90'
Construction Notes:
I. Catch Basin Design Specifications to Latest A5TM C-913
Specifications For 'Precast Concrete Water and
Wastewater Structures" and NCDOT Standards. I 0.
2. Concrete Compressive Strength 4000 Psi Minimum.
r
3. steel Reinforcing Design to Conform to the
Requirements of A5TM C-8q0 5pec1ficatlons for Grade 60
Re -bars conforming to the Requirements of A5TM A-615 or
YW conforming to the Requirements of ASTM A-05 or
Both. a�
4. Additional Reinforcing at Openings-
5. Designed For H-20-44 Loading.
6. Steps Required on Catch Basins Over 3'-6" In Depth.
Steps Shall be Steel Reinforced Gopolymer Polypropylene
Plastic and Meet the Requirements of A5TM C-418.
1. To be Field Adjusted Using NCDOT Approved Methods
8. Pipe Penetration to be as per Job Requirements. Pipe
to be Installed by Contractor as per NCDOT Requirements
for Mortar Joint Connections.
q. Cost -in Ring and Cover To Be Supplied by
Either G.P.G. or Customer Supplied.
10. Joints to be Sealed With Butyl Rubber Joint Sealant
Conforming to the Requirements of A5TM C-990, or Mortar
as per NCDOT Requirements, or Both.
I I. Diameter of Pipe Catch Basin WIII Handle Varies.
12. Total height per job specification.
Varld WaA 10WRu0
Scale, None
e
?b•
i
1�
General Planting Specifications:
Root stock of the plant material shall be kept molst during transport from source to the job
site.
Walls of planting pit shall be dug so they are vertical.
The diameter of the planting pit must be a minimum of six Inches larger than the diameter of
the ball of the tree.
The appropriate amount of fertilizer Is to placed at the bottom of the pit (see below for
fertilization rates).
The plant shall be removed from the container and placed in the planting pit by lifting and
carrying the plant by the ball (never lift by branches or trunk).
Set the plant upright and In the center of the pit so that the top of the ball is approximately
/4" above the final grade.
Backflll planting pit with existing soil.
Make sure plant remains straight during backfilli ng procedure.
Never cover the top of the ball with soil. Mound soil around the exposed ball.
Trees shall be braced by using 2" by 2" white oak stakes. Stakes shall be placed parallel to
walkways and buildings. Stakes are to be equally spaced on the outside of the tree ball.
Utilizing hose and wire, brace the tree to the stakes.
Fertilization
Tree and shrub fertilizer shall be a 21-gm, tightly compressed, long-lasting, slow releose(2
year) fertilizer tablet with a minimum guaranteed analysis of 20-10-5.
Total NitrogenlN-20
Hater Soluble Organic Nitrogen - 1
Victor Insoluble Organic Nitrogen - 13
Available Phosphoric Acid - 10
Soluble Potash - 5
For contalnerized trees and shrubs, place the specified fertilizer tablet(s) in the bottom of the
planting pit according to the following rates;
I gal. - I ea. 21 gm. Tablets
3 gal. - 2 ea. 21 gm. Tablets
5 gal. - 3 ea. 21 gm. Tablets
1 gal. - 5 ea. 21 gm. Tablets
Planting Non -Crass 6rou d Cover
The ground cover planting holes shall be dug through the mulch with one of the following: hand
trowel, shovel, bulb planter, or hoe (this does not apply to grasses or legumes).
Before planting, biodegradable pots shall be split, and non -biodegradable pots shall be
removed. Root systems of all potted plants shall be split or crumbled.
The ground cover shall be planted so that the roots are surrounded by the soli below the
mulch. Potted plants shall be set so that the top of the pot is even with the existing grade.
The roots of bare roots plants shall be covered to the crown.
Before planting, apply a pre -emergent herbicide to the mulched and planted grand cover
bed.
The entire ground cover bed shall be thoroughly watered.
PlantbQ Grass Ground Cover
Grasses and legumes seed shall be tilled Into the soil to a depth of at least 2 Inches by
either harrowing or discing. Fertilizer shall be applied at the some rate and utilizing the some
process for non -grass ground cover. brass and legume plugs shall be planted following the
non -grass Tound cover planting techniques.
All Touid covers shall be fertilized with a 10-6-4 analysis fertilizer as a wet application at
the rate of 31bs per 100 square feet of the bioretentlon area prior to planting non -grass
ground cover or as part of the grass seed ground cover.
5oil 512ecificotion5:
The soil mix should be uniform and free of stones, stumps, roots or other similar material greater
than 2 inches. It should be homogenous soil mix of 65-88 percent by weight sand, 8-12 percent
fines (silt and clay), and 3-5 percent organic matter (such as peat moss) shall be used. 5011
Infiltration rate shall be IN per hour.
The planting soil shall be free of plants or plant pats of Bermuda grass, Quack grass, Johnson
grass, Mugwort, Nutsedge, Poison Ivy, Canadian Thistle, or others as specified.
The planting soil shall not contain toxic substances harmful to plant growth.
The planting soil shall be tested and meet the following criteria:
PH range 5.5-65
Organic Matter I5-3.0%
Magnesium -Mg 35lbs/acre
Phosphorus-P205 IOOIbs/acre (P-Index Range 10-30)
Pota551um-K20 851b5/acre
Soluble solts not to exceed 500 pprn
The followlg testing frequencies shall apply to the above soli constituents:
- pH, Organic Matter: I test per 90 cubic yards, but not Iessthan I test per borrow source.
- Magnesium, Phosphorus, Potassium, Soluble Salts: I test per 500 c4 ble yards, but not less
than I test per borrow source.
- One gain size analysis shall be performed per 90 cubic yards of planting soil, but not
less than I test per Bloretention Area.
A mulch layer shall be provided on top of the planting soil. An acceptable mulch layer shall
include shredded hardwood or shredded wood chips or other similar material.
Of the approved mulch products, all must be well aged, uniform in color, and free of foreign
material Including plant material. well -aged mulch la defined as mulch that has been stockpiled or
stored for at least 12 months.
The sand shall be free of deleterious material and rocks greater than I Inch in diameter.
Soil shall be placed in layers less than 18 Inches and lightly compocted(minlmal compactive effort)
by tamping with a bucket from a dozer or a backhoe.
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PRAPN BY:
LU
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5GALE:
As Noted
PATE:
z
01-06-12
J05 MAIENW-
0900520
PRA"N&
C,over

Legend:
IPF
= Iron Pipe Found
IRF
= Iron Rod Found
GMF
= Concrete Monument Found
PKF
= PK Nall Found
PK5
= PK Nall Set
-
= Right of Way
= Boundary Line
-------- = Adjacent Property Lines not Surveyed
----------- = Build" Setback Lines
= Landscaping/5creening Buffer
= Existing Contour
moo—
= Proposed Contour
- - -hl-
= Approximate Location of Existing Waterline
= Proposed Storm Drainage
®�
{a_w5o ]
= Proposed Spot Elevation
oP
= 10' Pine (typ)
X
= Existing Tree to be Removed
7¢(
= Light Pole
= UtI11ty Pole
w O
= overhead utility
0
= Water Meter
= Water Valve
= Fire Hydrant
w
= Waterline
Q
= Sanitary Sewer Manhole
55
= Sanitary 5e104eriine
= Sanitary Sewer Stubout
= Garb Inlet
= Storm Dram Manhole
GhP
= Gorrugated Metal Pipe
Rep
= Reinforced Concrete Pipe
NDPE
= High Density Polyethylene Pipe
References:
Plat Cabinet 1, Slide 331
Moore County Registry
Owner/Developer
Sall Pre5b4terlan Church
650 Pee Dee Rd.
Southern Pines, NC, 28381
4110-C148-2114
General Notes:
This map Is not In accordance with 65 41-30
Area by coordinate method.
Dashed lines not surveyed, drawn from Information Indicated.
Contour Interval = 1, based on assumed datum.
Property Is currently zoned R5-3
This property does not fall Inside a FEMA designated floodplai n.
This property 15 located in a WS-III-HQW water supply watershed.
There are no visual encroacFments other than those shown
hereon.
Neal Smith Engineering, Inc. did not perform a boundary survey.
Boundary dawn by Information Indicated. (PG 1 Slide 551)
No wetlands on site.
Any borrow material brought onto this site must be from a legally
permitted mile site or other approved source. A single -use
51te Data
LRK,
Deed Book 4 Pane
Current Zoning:
Downstream receiving stream
Stream Glassif"Ion
VA
North
Per PG 'T SL 531
"County old Hoors"
1534/K14
Zoned: FRR-GD
borrow or waste crea site in
under control of the financially responsiblepersonfor firm that Is
9 fan operated
developing this site. An approved erosion and sediment control 3268F✓00 �.' / /`
plan is required for all single use borrow and waste sites. Zoned' R53
52o-35 �•W
S26.43'38OW 117.28
141.31
Bloretention Area S261 4'20'W
See Detail Sheet ` 366.32' ..:
- 777
Tom off S(Mh n If 61111wll
15bb/316
Zoned: R53
DRAINAGE AREA
Total Impervious; 10,013 5F
Total Area: 25,118 5F
Percent Impervious: 39.-J%
BIORETENTION
51ZI..
Required;
Provided:
Minimum Surface
Required:
Area
- . . %.
_ -----------"--- � ---..-�li..la_.,.l.ts.J.J.I✓`Q -
33' Level Spreader
50' Filter Strip
See Detail Sheet Pond
/4.D/
5rort5 Field11
12- RCPZ Bermuda Sod_- Temporary 511t Fence L iced Forel'xny � � SeeDetail Sheet Plauouna A ea
Droo net
INMl00P� County
1Irv.: 4a2.!8'
Chfidrsn'R Center
563rd0b
Exi5.:ng Grovel I-L± Loncrete �� _r� Zoned: FRR
r �.
' Proposed BuIldYig t Pomng Area
Ff�, 45350' t - � • _ i' Hsu ✓iy �" � \
Pad Elev, 45050' k° \
Diversion
L Swale a
�� i BO
X
Ok
1_ '<\- ` u n inlet \ \
Existing
'mac Rim 440.20' - \
N437 ` .+� �- - _ D ma o r ?,�
/ 1-j 8•
Gravel� Truck Access Only. •�
E Gore once 0 > ® \
-�
/ See Detail Sheet ,jro rlet
-'/ P.7Ved ParK^g Area
2911/295
Zoned: R53 110 11 �,
G ?O
/QSg ^1� / - - _ Cure met'
w, -- -_�— G,ro Inlet -\
�er Inv. 456.84'
Rim, 2G'
/ ik - {
Progb
Wdan Church"
It
,6 /
1483/100 /
Zoned: R53Appr
oximate Locationof Existing Water Line -.� ® w *$ $ N3739" 7 ENOS, yg2
V 49 5
Arcor—. r- -' _ r r Permit Doc Imerits
m
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J-d(lA/CLfa�
2-
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N24112O�nNOLMOuSPEEDEE RO' 42.82' s0V0ls1gO
Scale : I' = 50'
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.� •.•. • 4 J .• •• 1/ 1 J , �dA To, MIL li.��•.���a- • L.L•.!
SITY. UNIT
1 SYMBOL
1 5PWI1 5 AND Sim
2 EA.
Rusty Blockhaw Viburnum(Vlburnum rufidulurn) 25' dbh or larger
4 EA.
Cj
rRed Ghokebemj(Aronlo arbutifolia) 3 gallon or larger
2 EA.
- 3 --
------------------- —
i Jersey tea Geaiothus(C.eoriodvs amerIcanus) 3 gallon or larger
4 EA.
Carolina Rose(Rosa Carolina) 3 gallon or larger
r Overflow Yard Inlet
/ Rim: 439.-f5'
Invert: 438.-0'
Outlet Pie: 12' RGP
28'
Outlet Invert: 43g60
3:1 Max.
q tlaxktiun
!
/! Fore"
Padhg Depth
I
j -
Top Elevation 43q. '
Pondhg Elevation 43q.75'
Foretxny Weir Elevation 43q.-I5'
Top of Planting Soil Elevation 43g.00'
'For" Bottom Elevation 431
f�
!Planting Soil Bottom Elevation 436A0'
j 3' Planting Soil Depth
Seasonal Water Table Elevation 4 6
TR so s rerial C&wn Cm P650610teS, C-.
Bioretention Elevations
Scale: None
North
Per PG l SL 331
439.75'
6RAPHIC SCALE (Feet)
Scale : 1' = 30,
COWHower-Echinacea pupurpea-seed at a rate of 12lbs/acre.
Daylily-Hemerocallls spp.- pint I per 3 square feet of surface area.
Creeping Blue Star-Amsonlo ciliate -pint I per 3 59uare feet of surface area.
Herbaceous grouidcover shall be planted after tree and shrub plantings and
Hex hatched area prior to the addition of mulch.
for Greeping Blue star
General Planting Specifications:
Root stock of the plant material shall be kept moist during transport from source to the Job
site.
Walls of planting pit shall be dug so they are vertical.
The diameter of the planting pit must be a minimum of six Inches larger than the diameter of
the ball of the tree.
— (Anisorila cillkrtc>)
General Planting Notes:
The appropriate amount of fertilizer Is to placed at the bottom of the pit (see below for
� L
fertilization rates).
Trees and shrubs shall be plaited at a minimum of
I tree/shrub per 100 s.f.
The plant shall be removed from the container and placed in the plaiting pit by Ilfting and
W w
carrying the plant by the ball (never lift by branches or trunk).
Crass hatched area
Trees shall be plaited in the general locations Indicated
and spaced a mi nlrrxim of 12 feet apa t.
Set the plant upright and in the center of the pit so that the top of the ball Is approximately
for Daylilly
/4 above the final grade.
((Herrero Ills
Entire a ea�o b=eeded
Shrubs shall be planted In the general location indicated
and spaced a minimum of 6 feet apart.
Backfill planting pit with existing loll.
with Coneflower(Echirnocea
purpurea>)
Herbaceous ground cover shall be planted in the designated
Make sure plant remains straight during backFilling procedure.
Maintenance:
hatched areas.(see Planting Guide)
Never cover the top of the ball with soil. Mound soil around the exposed ball.
SOIL
Gonstruction Sequence:
Trees shall be braced by using 2" by 2' white oak stakes. Stakes shall be placed parallel to
Visually Inspect and repair erosion monthly.
y P� eP y
1. Install all sediment and erosion devices prior to beginning construction of the bloretention unit.
walkways and buildings. Stakes ore to be equally spaced on the outside of the tree ball.
Utilizing hose and wire, brace the tree to the stakes.
Ctneck pH yearly ad apply limestone accordingly.
All construction activities after the completion of the bioretentlon cell shall provide adequate
sediment ad erosion control measures to avoid sediment entering the bioretentton cell.
Fertilization
WL
2. Grade site to elevations shown on plan. If applicable, construct curb openings ad/or remove
Re -mulch any Vold areas by had as needed.
replace existing concrete. All stormwater entrances to bioretention unit should be blocked or
other measures made to prevent drainage from entering construction area.
Tree and shrub fertilizer shall be a 21-gn, tightly compressed, long-lasting, slow relea5e(2
y ear) fertilizer tablet with a minimum guaranteed analysis of 20-10-5.
Remove previous mulch layer and apply new mulch layer once
Add fresh mulch every 6 months, In the sprung and fall.
every two to three years. 3. Stabilize grading within Limit of Disturbance except for the bloretentlon area.
4. Excavate bioretentlon area to proposed Invert depth and scarify the existing soil surfaces,
Total Nltr n-20
PLANTS
taking core not to compact the Insist materials.
ui
5. Install derdrain system and observation wells, If specified.
Water Soluble Organic Nitrogen"f
Water Insoluble Oanic Nitrogen - 13
Immediate) after the completion of cell construction, water )ant material for 14 consecutive 6. Enackflll bloretenti n area with sad bed and then planting soll.(If applicable)
y p 7. Wet down the planting soil prior to planting vegetation to allow for settlement.
Available Phosphoric Acid - 10
Soluble Potash - 5
days.
Remove and replace all dead ad diseased vegetation considered
8. Excavate or fill to achieve proper design grade, leaving space for the upper layer of mulch
beyond treatment twice a that will bring the surface to final grade.
For contalnerized trees and shrubs, place the specified fertilizer tablet(e) In the bottom of the
cl. Plant vegetation.
year. aand using the least toxic methods.
Treat all diseased trees d shrubs as needed
Replace any deficient stakes or wires as needed. 10. Mulch and Install erosion protection at entrance points. Remove sediment control measures
)ant It accord) to the follow) rates;
p ing p ng
Replace support stakes once a year.
or entrance blocks with Inspector authorization.
I gal. - I ea. 21 gm. Tablets
r�
Transition Section
20 Ft. Min.
Diversion Grade Not To
Exceed IRS
Grade = 0%
_ /-- Diversion
Flaw
Undisturbed Soil
Maximum Slope 10AS
Width = W = 6 Concrete Lip
r
sk
-. J��'C!-?;J i_7? i—CJ� ].!�✓E'`:Gi JiV Ci i�Ti_�-r � ..
shall be tied Into higher' groundto preventflowcrow
d the level spreader.
LC� M Spm a day �Q AU
Scale: Now '
'M'
1-
QP3
439.90'
•
Construction Notes:
I. Catch Basin Design Specifications to Latest A5TM C-g13
Specifications For 'Precast Concrete Water and
Wastewater Structures" and NCDOT Standards. I na
2. Concrete Compressive Strength 4,000 Psi Minimum.
3. 5teel Reinforcing Design to Conform to the L n
Requirements of ASTM C MO Specifications for Grade 60
Re -bars conforming to the Requirements of ASTM A-bl5 or i
WWF Conforming to the Requirements of ASTM A-05 or
Both.
4. Additional Reinforcing at Openings.
5. Designed For H-20-44 Loading.
6. Steps Required on Catch Basins Over 3'-b" in Depth.
Steps Shall be Steel Reinforced Copolymer Polypropylene
Plastic and Meet the Requirements of A5TM C-4?8.
1. To be Field Adjusted Using NCDOT Approved Methods
8. Pipe Penetration to be as per Job Requirements. Pipe
to be Installed by Contractor as per NCDOT Requirements
for Mortar Joint Connecticms.
q. Cast -In Ring and Cover To Be Supplied by
Either C.P.C. or Customer Supplied.
10. Joints to be Sealed With Butyl Rubber Joint Sealant
Conforming to the Requirements of A5TM C-g410, or Mortar
as per NCDOT Requirements, or Both.
11. Diameter of Pipe Catch Basin WI11 Handle Varies.
12. Total height per Job specificatioonn. J� ;p �p�
11 awd �� O OW80H
Scale: None
•h•
3 gal. - 2 ea. 21 gm. Tablets
5 gal. - 3 ea. 21 gm. Tablets
-I gal. - 5 ea. 21 gm. Tablets
Plants Non -Grass Ground Cover
7 The ground cover planting holes shall be dug through the mulch with one of the following: hand
trowel, shovel, bulb planter, or hoe (this does not apply to grasses or legumes).
Before planting, biodegradable pots shall be split, and non-blodegradable pots shall be
removed. Root systems of all potted plants shall be split or crumbled.
The groixncl cover shall be planted so that the roots are surrounded by the soil below the
mulch. Potted plants shall be set so that the top of the pot Is even with the existing grade.
\, The roots of bare roots plants shall be covered to the crown.
Before planting, apply a pre -emergent herbicide to the mulched and planted ground cover
bed.
The entire ground cover bed shall be thoroughly watered.
FlcntinQ Grass Ground Cover
1
Grosses and legumes seed shall be tilled Into the loll to a depth of at least 2 Inches by
either harrowing or dlscing. Fertilizer shall be applied at the some rate and utilizing the same
process for non -grass ground cover. brass and legume plugs shall be planted following the
non -grass ground cover planting techniques.
All ground covers shall be fertilized with a 10-b 4 analysis fertilizer as a He appllcatlan at
the rate of 31b5 per 100 square feet of the bloretenticm area prior to planting non-gross
ground cover or as part of the grass seed ground cover.
� Soil Specifications:
3ro.
�..? *
The loll mix should be uniform and free of stones, stumps, roots or other similar material greater
than 2 inches. It should be homogenous soil mix of 85-86 percent by weight sand, 6-12 percent
-� fines (slit and clay), and 3-5 percent organic matter (such as peat moss) shall be used. Soil
Infiltration rate shall be I' per hour.
The planting soil shall be free of plants or plant parts of Bermuda grass, Quack grass, Johnson
grass, Mugwort, Nutsedge, Poison Ivy, Cardin Thistle, or others as specified.
The planting soil shall not contain toxic substances harmful to plant growth.
The planting soil shall be tested and meet the following criteria:
$ pH range 55-6.5
6• Organic Matter IS 3.0%
Magnesuun-Mg 351b5/acre
Phosphorus-P205 IOOIbs/acre (P-Index Range 10-30)
Potassium-K20 851b5/acre
Soluble salts not to exceed 500 ppm
f.-
The following testing frequencies shall apply to the above soil constituents:
- pH, Organic Matter: I test per g0 cubic yards, but not lessthan I test per borrow source.
- Magnesium, Phosphorus, Potassium, Soluble Salts: I test per 500 cubic yards, but not less
than Itest per borrow source.
One grain size analysis shall be performed per g0 cubic yards of planting soil, but not
Z less than I test per 131oretention Area.
06 A mulch layer shall be provided on top of the planting soil. An acceptable mulch layer shall
include shredded hardwood or shredded wood chips or other similar material.
Of the approved mulch products, all must be well aged, uniform in color, and free of foreign
material Including plant material. Well -aged mulch Is defined as mulch that has been stockpiled or
stored for at least 12 months.
The sand shall be free of deleterious material and rocks greater than I Inch in diameter.
Soil shall be placed in layers less than 18 Inches and lightly compacted(minimal compactNe effort)
by tamping with a bucket from a dozer or a backhoe.
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Transition Section
20 Ft. Min.
Diversion Grade Not To
Exceed IRS
Grade = 0%
_ /-- Diversion
Flaw
Undisturbed Soil
Maximum Slope 10AS
Width = W = 6 Concrete Lip
r
sk
-. J��'C!-?;J i_7? i—CJ� ].!�✓E'`:Gi JiV Ci i�Ti_�-r � ..
shall be tied Into higher' groundto preventflowcrow
d the level spreader.
LC� M Spm a day �Q AU
Scale: Now '
'M'
1-
QP3
439.90'
•
Construction Notes:
I. Catch Basin Design Specifications to Latest A5TM C-g13
Specifications For 'Precast Concrete Water and
Wastewater Structures" and NCDOT Standards. I na
2. Concrete Compressive Strength 4,000 Psi Minimum.
3. 5teel Reinforcing Design to Conform to the L n
Requirements of ASTM C MO Specifications for Grade 60
Re -bars conforming to the Requirements of ASTM A-bl5 or i
WWF Conforming to the Requirements of ASTM A-05 or
Both.
4. Additional Reinforcing at Openings.
5. Designed For H-20-44 Loading.
6. Steps Required on Catch Basins Over 3'-b" in Depth.
Steps Shall be Steel Reinforced Copolymer Polypropylene
Plastic and Meet the Requirements of A5TM C-4?8.
1. To be Field Adjusted Using NCDOT Approved Methods
8. Pipe Penetration to be as per Job Requirements. Pipe
to be Installed by Contractor as per NCDOT Requirements
for Mortar Joint Connecticms.
q. Cast -In Ring and Cover To Be Supplied by
Either C.P.C. or Customer Supplied.
10. Joints to be Sealed With Butyl Rubber Joint Sealant
Conforming to the Requirements of A5TM C-g410, or Mortar
as per NCDOT Requirements, or Both.
11. Diameter of Pipe Catch Basin WI11 Handle Varies.
12. Total height per Job specificatioonn. J� ;p �p�
11 awd �� O OW80H
Scale: None
•h•
3 gal. - 2 ea. 21 gm. Tablets
5 gal. - 3 ea. 21 gm. Tablets
-I gal. - 5 ea. 21 gm. Tablets
Plants Non -Grass Ground Cover
7 The ground cover planting holes shall be dug through the mulch with one of the following: hand
trowel, shovel, bulb planter, or hoe (this does not apply to grasses or legumes).
Before planting, biodegradable pots shall be split, and non-blodegradable pots shall be
removed. Root systems of all potted plants shall be split or crumbled.
The groixncl cover shall be planted so that the roots are surrounded by the soil below the
mulch. Potted plants shall be set so that the top of the pot Is even with the existing grade.
\, The roots of bare roots plants shall be covered to the crown.
Before planting, apply a pre -emergent herbicide to the mulched and planted ground cover
bed.
The entire ground cover bed shall be thoroughly watered.
FlcntinQ Grass Ground Cover
1
Grosses and legumes seed shall be tilled Into the loll to a depth of at least 2 Inches by
either harrowing or dlscing. Fertilizer shall be applied at the some rate and utilizing the same
process for non -grass ground cover. brass and legume plugs shall be planted following the
non -grass ground cover planting techniques.
All ground covers shall be fertilized with a 10-b 4 analysis fertilizer as a He appllcatlan at
the rate of 31b5 per 100 square feet of the bloretenticm area prior to planting non-gross
ground cover or as part of the grass seed ground cover.
� Soil Specifications:
3ro.
�..? *
The loll mix should be uniform and free of stones, stumps, roots or other similar material greater
than 2 inches. It should be homogenous soil mix of 85-86 percent by weight sand, 6-12 percent
-� fines (slit and clay), and 3-5 percent organic matter (such as peat moss) shall be used. Soil
Infiltration rate shall be I' per hour.
The planting soil shall be free of plants or plant parts of Bermuda grass, Quack grass, Johnson
grass, Mugwort, Nutsedge, Poison Ivy, Cardin Thistle, or others as specified.
The planting soil shall not contain toxic substances harmful to plant growth.
The planting soil shall be tested and meet the following criteria:
$ pH range 55-6.5
6• Organic Matter IS 3.0%
Magnesuun-Mg 351b5/acre
Phosphorus-P205 IOOIbs/acre (P-Index Range 10-30)
Potassium-K20 851b5/acre
Soluble salts not to exceed 500 ppm
f.-
The following testing frequencies shall apply to the above soil constituents:
- pH, Organic Matter: I test per g0 cubic yards, but not lessthan I test per borrow source.
- Magnesium, Phosphorus, Potassium, Soluble Salts: I test per 500 cubic yards, but not less
than Itest per borrow source.
One grain size analysis shall be performed per g0 cubic yards of planting soil, but not
Z less than I test per 131oretention Area.
06 A mulch layer shall be provided on top of the planting soil. An acceptable mulch layer shall
include shredded hardwood or shredded wood chips or other similar material.
Of the approved mulch products, all must be well aged, uniform in color, and free of foreign
material Including plant material. Well -aged mulch Is defined as mulch that has been stockpiled or
stored for at least 12 months.
The sand shall be free of deleterious material and rocks greater than I Inch in diameter.
Soil shall be placed in layers less than 18 Inches and lightly compacted(minimal compactNe effort)
by tamping with a bucket from a dozer or a backhoe.
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