SW6201004_Plan (SCM Detail)_20210427

�'STORMWATER MANAGEMENT NOTES:
I. THE DEVELOPER OR HIS AGENT SHALL CONTACT THE DESIGN ENGINEER
WHEN THE BEST MANAGEMENT PRACTICE(S) ARE CONSTRUCTED AND
ABOUT TO BECOME OPERATIONAL SO A FINAL INSPECTION CAN BE
PERFORMED TO DETERMINE COMPLIANCE WITH THE APPROVED PLAN CAN
BE PERFORMED.
2. ANNUAL MAINTENANCE INSPECTION AND REPORT REQUIRED - THE
OWNER OF A PERMITTED STRUCTURAL STORMWATER BMP/CONTROL
SHALL ANNUALLY SUBMIT A MAINTENANCE AND INSPECTION REPORT FOR
EACH BMP TO THE STORMWATER ADMINISTRATOR. ANNUAL INSPECTIONS
SHALL BEGIN WITHIN ONE YEAR OF THE RECORDATION OF ANY DEED(S)
SHOWING STORMWATER BMPs/CONTROL STRUCTURES.
3. UPON COMPLETION OF THE PROJECT, AND BEFORE A CERTIFICATE OF
OCCUPANCY SHALL BE GRANTED, THE ENGINEER OF RECORD SHALL
CERTIFY THAT THE COMPLETED PROJECT IS IN ACCORDANCE WITH THE
APPROVED STORMWATER MANAGEMENT PLANS AND DESIGNS.
4. A FINAL INSPECTION OF THE SITE AND STORMWATER MANAGEMENT
BMP/CONTROLS TO BE SCHEDULED WITH AND COMPLETED BY THE
PROJECT ENGINEER.
5. NCDEQ AND THEIR ASSIGNS HAVE RIGHT TO ACCESS THE STORMWATER
CONTROL(s) FOR INSPECTIONS OR MAINTENANCE AS NECESSARY.
6. THE ENGINEER'S CERTIFICATION OF COMPLETION WILL BE REQUIRED
PRIOR TO THE FINAL PLAT OR CERTIFICATE OF OCCUPANCY. THE
STORMWATER CONTROL IS TO BE INSPECTED TO ENSURE IT IS
FUNCTIONING AS DESIGNED AND HAS FULL DESIGN VOLUME PRIOR TO
ISSUANCE OF THE FINAL CERTIFICATE OF OCCUPANCY.
11, THE PROPERTY OWNER IS RESPONSIBLE FOR MAINTAINING THE
STORMWATER CONTROLS(s) ACCORDING TO THE APPROVED MAINTENANCE
PLAN AND DIRECTION OF NCDEQ
30" RCP WITH WATER TIGHT SEAL
PIPE TO BE BEDDED
PER DIRECTION OF GEOTECHNICAL
ENGINEER 3
3' MIN
APPROXIMATE SIZE
EXCAVATE AND BACKFILL
WITH COMPACTED
STRUCTURAL FILL AS
DIRECTED BY GEOTECHNICAL
ENGINEER
42'-30" RCP 0 2.38%
SILT FENCE AS NEEDED
8' MIN.
EMBANKMENT WIDTH
6' TOPSOIL FOR ALL -
AREAS ABOVE THE
NORMAL POND ELEVATION
6" CLAY SOIL- -
LINER ON INSIDE 6.5'x6.5' SEEPAGE
FACE OF COLLAR. SEE
EMBANKMENT DETAIL
6FT LITTORAL
6" TOPSOIL ABOVE
6" CLAY LINER
ON LITTORAL SHELF
3
1 ELEV=183.0 -
1
4' MIN. ASTM C-923 SEAL
KEY BETWEEN BARREL & RISER.
RISER BASE TO BE FILLED
WITH CONC. TO INVERT OF
BARREL
8"X8"Xl"X12" LONG ANGLE (6 TOT. REQUIRED) TO ANCHOR RISER TO
BASE. PROVIDE 2-3/4' A307 BOLTS FROM ANGLE TO RISER AND
2-A307 "J" HOOKS 3/4" DIA. X 12" LONG FROM ANGLE TO BASE.
ANGLE TO BE FIELD COATED WITH ZINC RICH PAINT AFTER
CONSTRUCTION. "J" HOOKS TO BE PLACED UNDER LOWER REINFORCING
STEEL
/---FILTER MEDIA (SEE NOTE 2)
FLU- (lnl
PRIOR TO INSTALLATION, MANUFACTURER SPECIFICATIONS OF FILTER MEDIA SHALL BE REVIEWED TO ENSURE THAT DISCHARGE FROM
FILTER MEDIA SHALL MEET OR EXCEED THE PROVISIONS OF THE CLEAN WATER ACT.
ENSURE THAT PUMP PRESSURE DOES NOT EXCEED FILTER MEDIA PRESSURE RATING.
FILTER MEDIA MAY BE, BUT NOT LIMITED TO, SAND MEDIA FILTRATION DEVICES, RATED FILTER FABRIC
BAGS OR POLYMER BASED DEWATERING PRACTICES.
PUMP STRAINER SHALL NOT BE IN CONTACT WITH BOTTOM OF POND.
BMP POND DEWATERING
SEEDBED PREPARATION:
i. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL THREE INCHES DEEP OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE.
2. RIP THE ENTIRE AREA TO SIX INCHES DEEP.
3. REMOVE ALL LOOSE ROCK, ROOTS AND OTHER OBSTRUCTIONS, LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM.
4. APPLY AGRICULTURAL LIME, FERTILIZER, AND SUPERPHOSPHATE UNIFORMLY AND MIX WITH SOIL (SEE SEEDING MIXTURE).
S. CONTINUE TILLAGE UNTIL A WELL -PULVERIZED, FIRM, REASONABLY UNIFORM SEEDBED IS PREPARED FOUR TO SIX INCHES DEEP.
6. SEED ON A FRESHLY PREPARED SEEDBED AND COVER SEED LIGHTLY WITH SEEDING EQUIPMENT OR CUL11PACK AFTER SEEDING.
7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH.
8 INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS OR RE-SEEDINGS WITHIN THE PLANTING SEASON, IF POSSIBLE. IF
STAND SHOULD BE MORE THAN 60% DAMAGED. RE-ESTABLISH FOLLOWING THE ORIGINAL UME, FERTILIZER AND SEEDING RATES.
9. CONSULT S&EC ENVIRONMENTAL ENGINEERS ON MAINTENANCE TREATMENT AND FERTILIZATION AFTER PERMANENT COVER IS
ESTABLISHED.
LANDSCAPE NOTES:
ALL LANDSCAPING SHALL BE IN COMPLIANCE WiTH THE NCDEQ BMP REQUIREMENTS.
LANDSCAPE CONTRACTOR SHALL PROVIDE A TWO-YEAR WARRANTY FOR BMP PLANTING SURVIVAL/REPLACEMENT.
AT THE END OF THE FIRST YEAR AND AT THE END OF THE TWO-YEAR WARRANTY PERIOD, ALL PLANTS THAT DO NOT SURVIVE MUST BE
REPLACED.
ESTABLISHMENT PROCEDURES, SUCH AS CONTROL OF INVASNE WEEDS, ANIMAL AND VANDAL DAMAGE, MULCHING, RE -STAKING, WATERING, AND
MESH OR TUBE PROTECTION REPLACEMENT, SHALL BE IMPLEMENTED TO THE EXTEND NEEDED TO ENSURE PLANT SURVIVAL. STAKING MUST BE
REMOVED AFTER ESTABLISHMENT (APPROXIMATELY 12 MONTHS), TO PREVENT GIRDLING (STRANGUNG) OF ALL WOODY PLANTS.
SOD WITHIN BMP AND SURROUNDING AREAS TO BE BERMUDA OR CENTIPEDE GRASS.
GRASS OR WILDFLOWER SEED MUST BE APPLIED AT THE RATES SPECIFIED BY THE SUPPLIERS. IF PLANT ESTABLISHMENT CANNOT BE ACHIEVED
WiTH SEEDING BY THE TIME OF SUBSTANTIAL COMPLETION OF THE STORMWATER FACILITY PORTION OF THE PROJECT, THEN THE CONTRACTOR
SHALL PLANT THE AREA WITH WILDFLOWER SOD, PLUGS, CONTAINER PLANTS, OR OTHER MEANS TO COMPLETE THE SPECIFIED PLANTING AND
PROTECT AGAINST EROSION BEFORE WATER IS ALLOWED TO ENTER THE STORMWATER BMP FACILITY.
ALL MATERIALS SHALL BE ACQUIRED FROM AN APPROVED NCDEQ PLANT VENDOR. PLANT MATERIAL SHOULD BE PURCHASED FROM A LOCAL
SOURCE TO ENSURE SURVIVABILITY. LOCAL VENDORS FOR THIS SITE INCLUDE:
- CILL IDE NATIVE PLANT NURSERY 919-662-5566
- GROWING WILD NURSERY 910-259-6361
- NC FOREST SERVICE 919-731-7988
- PLANT DELIGHTS NURSERY 919-772-4794
- TARHEEL NATIVE TREES 919-553-5927
IMMEDIATELY AFTER THE WET DETENTION BASIN IS ESTABUSHED, THE PLANTS ON THE VEGETATED SHELF AND PERIMETER OF THE BASIN SHOULD
BE WATERED TWICE WEEKLY IF NEEDED UNTIL THE PLANTS BECOME ESTABLISHED (COMMONLY SIX WEEKS)
NO PORTION OF THE WET DETENTION POND SHOULD BE FERTILIZED AFTER THE FIRST INITIAL FERTILIZATION THAT IS REQUIRED TO ESTABLISH
THE PLANTS ON THE VEGETATED SHELF.
LANDSCAPING NOTES:
i. CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE CODES AND ORDINANCES REGARDING LANDSCAPING.
2. iT IS THE RESPONSIBILITY OF THE CONTRACTOR TO ESTABLISH A HEALTHY STAID OF GRASS ON ALL SEEDED AREAS.
3. CONTRACTOR SHALL PROVIDE NATURAL TOPSOIL THAT IS FERTILE, FRIABLE, WITHOUT MIXTURE OF SUBSOIL MATERALS, AND
OBTAINED FROM A WELL DRAINED, AVAILABLE SITE. IT SHALL NOT CONTAIN SUBSTANCES WHICH MAY BE HARMFUL TO PLANT
GROWTH. TOPSOIL SHALL BE SCREENED AND FREE FROM CLAY, LUMPS, STONES, ROOTS, PLANTS, OR SIMILAR SUBSTANCES 1'
OR MORE IN DIAMETER, DEBRIS, OR OTHER OBJECTS WHICH MIGHT BE A HINDERANCE TO PLANTING OPERATIONS, TOPSOIL
SHALLCONTAIN AT LEAST 4-6X ORGANIC MATTER BY WEIGHT AND HAVE A PH RANGE OF 5.5 TO 7.0.
4. CONTRACTOR SHALL BE RESPONSIBLE FOR THE WATERING AND THE MAINTENANCE OF ALL LANDSCAPED AREAS UNTIL THE LATER
OF; (a) THIRTY (30) DAYS FOLLOWING THE PLANTING OF THE GRASS AND SHRUBS, OR (b) THE DATE THAT STORE OPENS FOR
BUSINESS TO THE PUBLIC. CONTRACTOR SHALL ALSO BE RESPONSIBILITY FOR THE SURVIVAL OF THE BMP PLANTING MATERIALS
DURING THE TWO-YEAR WARRANTY PERIOD AND SHALL REPLACE ALL PUNTS THAT DO NOT SURVIVE AT THE END OF THE FIRST
YEAR AND AT THE END OF THE SECDND YEAR OF THE WARRANTY PERIOD.
5. CONTRACTOR TO VERIFY QUANTITIES PRIOR TO COMMENCING WORK.
6. ANY DISTURBED AREAS NOT SCHEDULED FOR HARDSCAPE, PLANTINGS, OR MULCH SHALL BE SEEDED LAWN. REFER TO SITE PLAN
FOR LOCATION OF AREAS TO BE SODDED.
7. NO PLANT SUBSTITUTIONS ARE PERMITTED WITHOUT WRITTEN APPROVAL OF THE OWNERS REPRESENTATIVE.
8. FOR NEW PLANTING AREAS, REMOVE ALL PAVEMENT, GRAVEL SUB -BASE AND CONSTRUCTION DEBRIS; REMOVE COMPACTED SOIL
AND ADD III- NEW TOPSOIL, OR TILL AND AMEND THE TOP 18' OF EXISTING SOIL TO MEET TOPSOIL/PLANTING MIX STANDARDS
FOR TREES.
9. ADJUST TREE PLANTING LOCATIONS TO AVOID UNDERGROUND UTILITIES. PLANT 15' FROM ALL UNDERGROUND unutiEs (SEWER
AND STORM DRAINAGE, GAS, WATER, PHONE, AND ELECTRICAL LINES.)
STORMWATER MANAGEMENT SYSTEM DETAILS
NOT TO SCALE
F`0/Y
LOW POINT
L
6
�1
LEVEL
J a I L_ FI T •e
TOP OF STRUCTURE
(MANHOLE ACCESS)
REFER TO DETAIL
FOR INCREMENTAL
WEIR
4'x4' PRECAST
CONCRETE RISER
(INSTALL STEPS
AS NECESSARY)
PVC ELBOW
SEE DETAIL
`- 5'x5'xl.5' CONC. BASE
AND BOTTOM OF EACH
BETWEEN EDGE OF CON
PROFILE OF WET
s
CONSTRUCTION SEQUENCE
FOR WET DETENTION POND:
1. INSTALL EROSION CONTROLS.
2. CONSTRUCT DAM BASE AND AREAS BELOW THE
NORMAL POOL CONSTRUCTION TO BE PERFORMED
UNDER THE INSPECTION OF THE GEOTECHNICAL
ENGINEER. SEED UPON COMPLETION.
3. INSTALL OUTLET PIPE, RIP -RAP APRON AND
STONE FILTER RING.
4. CONSTRUCT OUTLET STRUCTURE.
5. REMOVE ACCUMULATED SEDIMENT AND
SEED UPON COMPLETION.
TOP OF EMBANKMENT ELEVATION=193.0
1 YEAR STORM ELEVATION=188.13
INTERMEDIATE WEIR ELEVATION=187.7
1.0-INCH STORM ELEVATION=185.62
7 NORMAL POND ELEVATION=185.0
2 NOTE: PUMPS SHALL BE USED TO DRAIN
-� 1 THE POND WHEN NECESSARY. REFER TO DETAIL
THIS SHEET FOR DEWATERING REQUIREMENTS.
EXISTING GRADE=195.0t
BOTTOM OF POND (TOP OF SEDIMENT STORAGE)=175.5
CONCRETE SHALL BE -
PLACED IN RISER AFTER ._
ANGLES ARE SECURED - " (BOTTOM OF SEDIMENT STORAGE)=174.5
TO BASE AND RISER.
�-
6" CLAY SOIL
REINFORCE WITH #4 BARS AT 12" O.C. TOP LINER
DIRECTION PROVIDE 3" MIN. CLEARANCE MAIN POOL
C. AND STEEL REINFORCING.
TOP OF EMBANKMENT ELEV=193.0
POND DETENTION SYSTEM 8'
1. WTI.
-
3'
3
1� B
8"
(3..__- I "' ...p
LEVEL
SPILLWAY CREST
ELEV=190.9
CONCRETE SECTION
2'
A
2'
TOP OF
EMBANKMENT
ELEV=193.0
_
I_I:
SPILLWAY
ELEV=190.9
INS=1I�,;.m.
SPILLWAY
A
B
BASIN
15 FT
2.1 FT
3
1
SPILLWAY
CREST _... 2'-0'
COMPACTED;._._
SUBGRADE 5" THICK 4000 P
CONC. W/ 6X6, 10/10.:e._
ICI
WWF 2" FROM TOP
CONCRETE SPILLWAY
Tpp OF STRUCTURE ` '
190
/�fR'Uf0/q
,
2
1
2'-0"
CLASS B
RIP -RAP d 50 MEDIAN
DIA.=8" ON FILTER
FABRIC
RIP -RAP APRON -�
FOREBAY WEIR 9 % / I J -INLET PIPE WITH
WEIR - // 1 "- --� 197 RIP -RAP APRON_
- -- - --
° o° a a°
It i
°aa a
/
o a
REFER TO i ° i / / � / / / / / �• ./
/ / / FOREBAY / ° 'FOREBAY ' /
1 GRADING PLAN / AREA \ n ° a n AREA
\ \ I BY OTHERS / „ FOREBAY WEIR
I I I I I I I ° REFER TO
GRADING PLAN
BY OTHERS
1 \ 1 1 I I I \ - MAIN POND
AREA -
- TOP OF EMBANKMENT
9 _ - - _ °a a a ° _ <--- ELEV=193.0
r
SOD AREAS ABOVENORMAL
` __ . - _ _-1 H � _ ELEVATIONPOOL , - / / / / / J
CONCRETE /�
SPILLWAY CONCRETE SEEPAGE - `--
�.. -..,, _.- TOTAL LITTORAL SHELF
COLLAR •r OUTLET CONTROL _ AREA=2,985SF
_ REFER TO DETAIL
42'-30" RCP _.., STRUCTURE
�' REFER TO DETAILS ' '- FOR PLANTINGS /
02.38% \ - 'THIS SHEET
V(WATER-TIGHT) \ \ / / / INV=185.0
5 �• \ �- �- - FES
\ \ \ '" INV=184.0
LIN .�
GRAPHIC SCALE
WET POND PLAN VIEW 1 INCH = 40 FEET
"'RUCTURE NOT SHOWN FOR CLARITY
kCCESS)
OUTLET CONTROL STRUCTURE _ INCREMENTAL WEIR
6" TOPSOIL ABOVE-
6" CLAY LINER
ON LITTORAL SHELF
6FT LITTORAL
SHELF
3CY CLASS B RIP -RAP
6" TOPSOIL FOR ALL
AREAS ABOVE THE
NORMAL POND ELEVATION
FOREBAY BERM
3:1
5' MIN. GRASS FOREBAY
WEIR AT ELEV=184.0
FOREBAY TOP ELEV=187.5
WIDTH AT TOP=2.0 FT
RISER STRUCTURE
4' PVC SCREW CAP
FOR CLEANING ACCESS
12" MIN.
P
4"x4" PVC TEE
PERM. POND ELEV.=185.0
SEDIMENT STORAGE TOP
FOREBAY BOTTOM
ELEV=179.0(W)/180.0(E)
BOTTOM OF SEDIMENT
STORAGE/EXIT
ELEV=182.0
3)"DIA. HOLE DRILLED
INTO BOTTOM CAP
PVC DRAIN OUTLET
NOTE: PUMPS SHALL BE USED TO DRAIN
THE FOREBAY WHEN NECESSARY. REFER TO DETAIL
THIS SHEET FOR DEWATERING REQUIREMENTS.
'S1
NORMAL POND ELEVATION
FOREBAY ENTRANCE SHALL BE
DEEPER THAN FOREBAY EXIT
SHALLOW LAND ZONE
HERBACEOUS PLANTS
TYPICAL LITTORAL SHELF VEGETATION DETAIL
SCALE: N.T.S.
SCIENTIFIC NAME COMMON NAME PLANTING ZONE QUANTITY NURSERY CONTAINER TYPE
�- 6" TOPSOIL FOR ALL
AREAS ABOVE THE
NORMAL POND ELEVATION
BOTTOM OF SEDIMENT
STORAGE/ENTRANCE
ELEV=178.0(W)/l79.O(E)
SHALLOW WATER ZONE
HERBACEOUS PLANTS
POND
(NORMAL POOL)
SPACING PLANTING SEASON
Joncus effusus
Soft Rush
SHALLOW WATER
125
PEAT POT
6' O.C.
SPRING/SUMMER
Iris virginica
Blue Flag Iris
SHALLOW WATER
125
PEAT POT
6' O.C.
SPRING/SUMMER
Schoenoplectus tabernaemontani
Soft Stem Bulrush
SHALLOW WATER
125
PEAT POT
6' O.C.
SPRING/SUMMER
EupatorPadelphus maculatus
Spotted Trumpetweed
SHALLOW LAND
125
PEAT POT
6' O.C.
SPRING/SUMMER
Eupotorium purpureum
Joe -Rye Weed
SHALLOW LAND
125
PEAT POT
6' O.C.
SPRING/SUMMER
IllRhynahospora colorota
Starrush Whitetop
SHALLOW LAND 1
125
PEAT POT
6' O.C.
SPRING/SUMMER
CONCRETE SEEPAGE
COLLAR
SCALE: N.T.S.
STORMWATER MANAGEMENT DESIGN
WET DETENTION POND
RIVER BASIN: CAPE FEAR
RECEIVING STREAM: BEAVER CREEK
STREAM INDEX: 18-31-19-5
STREAM CLASS: C
HUC: 03030004
POND DESIGN SUMMARY
DRAINAGE AREA TO POND:
23.87 ACRES
SITE IMPERVIOUS AREA TO POND:
OFF -SITE DESIGN IMPERVIOUS AREA TO POND'
9.95 ACRES
TOTAL DESIGN IMPERVIOUS AREA TO POND:
6 67 ACRES
16.62 ACRES
PRE -DEVELOPED
TO POND
POST -DEVELOPED POST DEVELOPED
DRAINAGE AREA: 23.87 AC
TO POND THROUGH POND
23.87 AC
CURVE NUMBER: 59.7
85.5
TIME OF CONCENTRATION: 19.0 MIN
12 MIN
1' STORM EVENT:
2.999 CFS 0.222 CFS
1-YEAR STORM EVENT: 5.094 CFS
56.88 CFS 3.375 CFS
10-YEAR STORM EVENT: 39.71 CFS
129.58 CFS 37.33 CFS
100-YEAR STORM EVENT: 96.31 CFS
216.08 CFS 110.04 CFS
TYPICAL LITTORAL SHELF PLANTING SCHEDULE
#4 REBAR 0 12" OC
IN FRONT & REAR FACE
OF COLLAR. REBAR TO
HAVE 3" MIN. CONC. COVER
FROM EDGE OR FACE OF COLLAR
NOTES:
1. ALL CONCRETE TO BE 3000
PSI NON -FLY ASH.
2. APPLY J" THICK WRAP OF
ASPHALTIC CEMENT AROUND
DISCHARGE PIPE 6"
BEYOND PLANNED SEEPAGE
COLLAR ON BOTH SIDES.
3. APPLY ADDITIONAL
ASPHALTIC CEMENT AT
PIPE/SEEPAGE COLLAR
INTERFACE ON UPSTREAM
FACES.
4. TO BE FIELD INSPECTED BY
GEOTECHNICAL ENGINEER.
ASPHALTIC CEMENT TO
MEET OR EXCEED FEDERAL
SPECIFICATION SS-153
TYPE 1: ASTM-D-2822-75
TYPE 1.
STAGE/STORAGE
TARE
STAGE
ELEVATION
CONTOUR
INCREMENTAL
TOTAL
(FT)
(FT)
AREA (SF)
STORAGE (CF)
STORAGE (CF)
0.0
185.0
21940
0
0
0.5
185.5
24355
11574
11574
1.0
186.0
26000
12589
24163
20
187.0
29305
27653
51815
2.3
187.3
30305
8942
60757 (WOv)
2.5
187.5
30975
6128
66885
3.0
188.0
32980
15989
82873
4.0
189.0
36255
34618
117491
5.0
190.0
39585
37920
155411
6.0
191.0
42960
41273
196683
7.0
192.0
46390
44675
241358
8.0
193.0
49875
48133
289491
IF OPERATION & MAINTENANCE
BMP element:
Poton al robiem:
How I will romediate the
e entire BMP
Trash/debris la present
-problem
Remo" the trash/debris
he Perimeter of the w
sterdfon basin
Areas of bar# soil and/or
erosive gullies have formed
Regrade the soil If necessary to
remove the gully, and then plant
a ground cover and water until If
established. Provide lime and
a one-time fertilizer application
Vegetation Is too 0 or
long
almaln vegetation at a height
of approximately six inches.
e Inlet device: pipe or
Iwole
The pipe Is clogged.
nc e pipe, Dispose of the
sediment off -site.
The pipe is cracked or
otherwise damn ed
Replace the pipe.
roe on s occurring In the
swals.
Regrade the swa a If n scesaary-
to smooth it over and provide
erosion control devices such as
reinforced turf matting or Mprop
to avoid future problems with
erosion.
e forebay
Sediment has accumu o
a depth greater than the
original design depth for
sediment storage.
Search for the source of the
sediment and remedy the
problem If possible. Remove the
sediment and dispose of H In a
location where it will not cause
ira cis to shams or the BMP.
We
co roe on as au
a na erosion
protection such as reinforced turf
matting or Mprop if needed to
prevent future erosion problems.
Woods are present.
Remove the woods, preferably
hand. If pesticide is used, wipe it
on the plants rather than
a n.
e vegetateds
professional proces
show that pruning is needed
to maintain optimal plant
rune acco ngto beg
professional practices
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
sob test indicates it Is n .
Beds are present.
emove e w s, profero y by
hand. If pesticide is used, wipe it
on the plants rather than
spraying.
e man treatment Oren
men co as aumu
a depth greater than the
original design sediment
storage depth.
eorcTi o the source of ifie
sediment and remedy the
problem If possible. Remove the
sediment and dispose of it in a
location where It will not cause
Impacts to streams or the BMP.
Algal gmvih covers over 5OX
of the area.
Consulta professional remove
and control the algal row1h.
Cattails, p rogm or other
inwsive plants cover SOX of
the basin surface.
Remove pan w p ng
them with pesticide (do no
s
e embankment
Shru aw Started to grow
on the embankment
emow shrubs mmed a y.
v ante o M.or beaver
activity is present.
Use traps to remove muskrats
and consult a professional to
remove beavers.
A tree has started to grow on
the embankment.
Consult a dam safety specialist
to remove the tree.
n annual nns on by an
appropriate professional shows
Makea needed repaint.
that the embankment needs
n Ir.
e outlet device
ncob.
can o e o ce.ogg
Dispose of the Sediment off -she.
The outlet device is damaged
Repair or replace the outlet
device.
The receiving water
Erosion or other signs of
Contact the local NC Division of
damage have occurred at the
outlet.
Water Quality Regional Office, or
the 401 Oversight Unit at
919-733-1786,
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CONSULTANT:
Triangle Site Design, PLLC
4004 Barrett Drive
Suite 101
Raleigh, NC 27609
[phone]
mlowder0trionglesitedesign.com
NC License #P-0619
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SEAL
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,,•� %Was:
OWNER/DEVELOPER:
Lee Humphrey
Double D Engineering, PLLC
150 S. Page Street
Southern Pines, NC 28387
910-684-8646 (Office)
910-206-1808 (cell)
[e-mail]
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the concepts and designs
presented herein, as an
instrument of services, is
intended only for the specific
purpose and client for which
it was prepared. Reuse of
and improper reliance on this
document without written
authorization and adaptation
by Triangle Site Design, PLLC
shall be without liability to
Triangle Site Design, PLLC,
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Drawn
Checked
Approved
Project No: 048008
Date: September 4, 2020
STORMWATER
CONTROL MEASURE
DETAILS -PHASE 1