SW6221102_Plansheet SCM1, SCM2, & SCM3 - SCM Detail_20230228

RIP-RAP PRE-TREATMENT REMOVABLE CAP
FOREBAY AT PIPE INLETS
STORMWATER MANAGEMENT NOTES: TOP OF EMBANKMENT= 447+0 SEE DETAIL THIS SHEET 6' SCHEDULE 40 PVC, SOR35, OR SMOOTH WALL CORRUGATED
PLASTIC PIPE WITH 3/8' PERFORATIONS 0 6' ON CENTER (4
100-YEAR STORM ELEVATION = 446.88 '// /,� �//� \\\,• HOLES PER ROW)
1. THE DEVELOPER OR His AGENT SHALL CONTACT THE DESIGN ENGINEER WHEN / FLUSH WITH PAVEMENT IN
THE BEST MANAGEMENT PRACTiCE(S) ARE CONSTRUCTED AND ABOUT TO 10-YEAR STORM ELEVATION = 445.51 \ \\\\\\��\ GRASS SOD j\// \j>• PERMEABLE PAVEMENT AREAS
DETERMINE COMPLIANCE WITHBECOME OPERATIONAL SO A FINAL INSPECTION CAN BE PERFORMED TO THE APPROVED PLAN CAN BE PERFORMED. SPILLWAY ELEVATION = 445.5 \\/�\\/�\f\��\\j�\�\\\ FILTER FABRIC AT BOTTOM �/ %\/ �' M 4tiN n�r•w`"""
AND SIDES OF CLEAN SAND / /�//\x %/i s" ; .0
2, ANNUAL MAINTENANCE INSPECTION AND REPORT REQUIRED - THE OWNER OF 2-YEAR STORM ELEVATION = 442.85 \jf\% �y4, i :%^� ;2;4/ k;4W Y, "`v `'' °°
A PERMITTED STRUCTURAL STORMWATER BMP/CONTROL SHALL ANNUALLY \���\\/ " \� fi\ �/jj »ai•* �'�"Ig+ ' 0 0 4.dh* ' ;:o$;',;E t' Z
SUBMIT A MAINTENANCE AND INSPECTION REPORT FOR EACH BMP TO THE ///�//// //%\�/\�/�'/' \ 1'-0" CLEAN SAND o
STORMWATER ADMINISTRATOR, ANNUAL INSPECTIONS SHALL BEGIN WITHIN 1-YEAR STORM ELEVATION = 441.85 \�\j\j\%/\\/T\//\�j\j/\\//\\�i\, \//�//\//\!<//\f/\j/// �7;,}^ ;``pA";: y„'" coo
'"s;` ra:e";"P`f 4+a' „r'.
ONE YEAR OF THE RECORDATION OF ANY DEED(S) SHOWING STORMWATER \\\f/\\j�\/�\j\\j�\/j\y\�j�/ 3� \ %Wv„ o
1t o
BMPs/CONTROL STRUCTURES 1.0' RAINFALL ELEVATION = 440.96 \// //\/\\/\\//\\�\✓\\�\�`</\ \\\ \f\\%�\\\\ INFILTRATION---,,,.,
SAND MEDIA
3 UPON COMPLETION OF THE PROJECT AND BEFORE A CERTIFICATE OF EXISTING GRADE= 444.0 BOTTOM OF BASIN = 440.0 /\\W, °o°
OCCUPANCY SHALL BE GRANTED THE ENGINEER OF RECORD SHALL CERTIFY
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THAT THE COMPLETED PROJECT IS IN ACCORDANCE WITH THE APPROVED FILTER MIXTURE //'/// // // / // ;a,w,., .x,.r,v(,d .+ r ,,! ,.Y 1;Y - •.:, ":(,d. , .,.o.,,,,w . rc.a t4 r, u , ^t \.\ \ \� \\\�\\• \\,\ . rr,;t' o :o. ,.Y,ky+s•,"k,}
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4STOI?MWATER MANAGEMENT PLANS AND DESIGNS. °°
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A FINAL INSPECTION OF THE SITE AND STORMWATER MANAGEMENT .,,., our ,,,,,aM +„',', r .,�SP+.:4,,.+•t,.e+o . o, ,.. •• ,, . ..,.,,�;°,,d ,,;,.,a ,a,r,, 4, .o,t c;7r ti. r ,,.,,°+.r, :: ,:u4.r» .,'a n ,s a:,: r+d w :,,,{ !k ,",'p
SAND MEDIUM AGGREGATE SAND •.ir, ,n,, ur a,,.;^ ,x:r• . J>,Y,� 4,a,k,,4,.,+w .f Y+fa >,,:,.,r, .,A,':4., Yn• ,+,,,°. Y.:�"�' . ,
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,r,a,i= :i`w,. '+, , r'a 4 t. E :$ , r,w us s+.>k:.,
BMP CONTROLS TO BE SCHEDULED YNiH AND COMPLETED BY THE PROJECT ,.are•nu"":''^a,:,nt t "+,�`: ,: �', ,'r.,f..- f., .+�" ;",.,,. , r rnr 't., rN^ Y+. � ,a'' .a,+s„^' 'a'"•• •''` �:
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CERTIFICATE OF OCCUPANCY, SOIL
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7. THE PROPERLY OWNER IS RESPONSIBLE FOR MAINTAINING THE STORMWATER 1-4 rda+J'c:�^ 1;iN,a. ,.:. wlY•(:'.':xr as ma'`.,;.C^i'a`;:" ;t�•°_y r ri,f,t. 4. *r+,: ; 1i'r7%,» � d,aw t{' '' •. �a"v1 >osr„*Ra is a » ,(( ,a negy raY
CONTROLS s ACCORDING TO THE APPROVED MAINTENANCE PLAN AND nl4•�a«''� Y'Y;M pw�p Yutl r ay '1`w R0.J;':r:rey,i# 4tl Y d :y` :Yar`A^ ""L' n,J' Y' IM1r i r b "` y y...... ;N Fi;,,n":I n �•v,t ( a fi yt'Y�t ?b
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„;i,^ , ^w .roar' la:+vrs "• +nr t"• .� saSd'": r a as ii ' ^4 a� " t° I.w �L a ° STORM DRAINAGE PIPE OR
a•a%'r:' Y..;1"rrntf•r I+., t„q. o,,ti°I,,.t't,isrNL'r.,° `e SYi s ail s 'e.r Y,`o`r.;'d N w i 51,rt' a i 1°,r cr < , t};`d, ir; CONCRETE FLUME
s, a 1,x our l A ht`7 1r n Y a t tit`a� rat n • - a ( 'r , N , b * +�`, r { J r Kt ae°6,' OUTFALL INTO POND LENGTH do WIDTH
SEASONAL HIGH WATER TABLE = 434.0 tl+a S^fki of h4t,,^t`,a�.b ,r•.*y,,! rp ra?° r 1 a 5 {�"�(7: av, r Yfii k.a a+s mt^I y Z".ri r ha.6.ti; 4.%Your J LR f.C, "u fi 1'r '� J:.#+a f r% "<.«r^•'_i•'i,'ot„i§a•':•iiwv,Y w rrr'Y +.,l"�:i•,''. i
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DIMENSIONS TO BE PE
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INFILTRATION BASIN TYPICAL SECTION - ,-r TAPER DEPTH
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FOREBAY
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OPERATION & MAINTENANCE PROVISIONS (INFILTRATION) RIP-CRAP OVER SS 8
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BMP element: Potential problem: How to remediate the problem GRASS SOD NOTE: RIP-RAP FOREBAY FILTER FABRIC fl
e entire infiltration basin Trash/debris is present Remove the trash/debris GRASS SOD SHALL BE EITHER HYBRID BERMUDA GRASS OR CENTIPEDE THAT HAS BEEN GROWN IN A SCALE: N.T.S. m m
SOIL THAT IS FREE OF AN IMPERMEABLE LAYER (SUCH AS CLAY).
e grass filter strip or other pretreatment Areas of bare soil and/or erosive gullies Regrade the soil if necessary to remove
area have formed the gully, plant ground cover and water NOTES:
untilestablished. Provide lime and a
one-time fertilizer application 1. ALL INFILTRATION BASINS SHALL HAVE AN ACCESS EASEMENT CONNECTING TO A DEDICATED PUBLIC RIGHT OF WAY,
o
2 ALL DRAINAGE AREAS TO AN INFILTRATION BASIN ARE TO BE STABILIZED PRIOR TO INSTALLATION OF SOILS OR GRASS SOD. w
Sediment has accumulated to a depth Search for the source of the sediment and LTER MEDIA(SEE NOTE 2)
greater than three inches remedy the problem if possible. Remove 3. THE DRAINAGE AREA OF THE INFILTRATION BASIN WILL BE CAREFULLY MANAGED TO REDUCE THE SEDIMENT LOAD TO THE SAND FILTER
the sedment and dispose of It in a SYSTEM. SILT FENCE AS NEEDED
MP J
location where it vnlnot cause impacts S
to streams or the SCM 4, THE WATER LEVEL IN THE MONITORING WELLS) WILL BE RECORDED ONCE A MONTH AND AFTER EVERY STORM EVENT GREATER THAN 1.5 w
INCHES
e flow diversion structure (if applicable) The structure is dogged Unclog the conveyance and dispose of any 5. IMMEDIATELY AFTER THE INFILTRATION BASIN IS ESTABLISHED, THE VEGETATION WILL BE WATERED TWICE WEEKLY IF NEEDED UNTIL PLANTS \ W C)sediment In a location where it will not BECOME ESTABLISHED (COMMONLY SIX WEEKS) '2p� C) © z
a cse Impacts to streams or the SCM
6. NO PORTION OF THE INFILTRATION BASIN WILL BE FERTILIZED AFTER THE INITIAL FERTILIZATION THAT IS REQUIRED TO ESTABLISH THE _-
The structure is damaged Make any necessary repairs or replace if VEGETATION, ATER LEVEL z
damage is too much for repair NOTES, 7 T
7. THE VEGETATION IN AND AROUND THE BASIN WILL BE MAINTAINED AT A HEIGHT OF APPROXIMATELY SIX INCHES, w z
e inlet device The inlet pipe is dogged (if applicable) Unclog the pipe and dispose of any 1. PRIOR TO INSTALLATION, MANUFACTURER SPECIFICATIONS OF FILTER MEDIA SHALL BE REVIEWED TO 0
sediment in a location where it will not ENSURE THAT DISCHARGE FROM FILTER MEDIA SHALL MEET OR EXCEED THE PROVISIONS OF THE CLEAN
cause impacts to streams or the SCM WATER ACT. w rT�j
2. ENSURE THAT PUMP PRESSURE DOES NOT EXCEED FILTER MEDIA PRESSURE RATING, 1_� ,r R F�+�I W W
The inlet pipe is aadced or otherwise Repair or replace the pipe t,,,f lil Y
damaged (If applicable) 3. FILTER MEDIA MAY BE, BUT NOT LIMITED TO, SAND MEDIA FILTRATION DEVICES, RATED FILTER FABRIC M 0
BAGS OR POLYMER BASED DEWATERING PRACTICES
Erosion is occurring in the swde Regrade the Swale If necessary and
(if applicable ovide erosion control devices such as Z
} provide 4. PUMP STRAINER SHALL NOT BE IN CONTACT WITH BOTTOM OF POND.
reinforced turf matting or rip-rap to avoid 1 4 Q
Q
future erosion problems J BMP POND DEWATERING Low POINT Q l
Stone verge Is dogged or covered In Remove sediment and clogged stone and
sediment (If applicable) replace with dean stone v � � ov
e basin More than far inches of sediment has Search for the source of the sediment and 0
accumulated remedy the problem if possible. Remove �' � ' ? �' a Q ~
the sediment and dispose of it in a
location where it will not case impacts ( I �' i� - r= ' i )
to streams or the SCM \ ��' .�'� G \ / �" \ ry FLOW LONG TOP OF EMBANKMENT C�C
SPILLWAY H B W SS CHANNEL LINING SPILLWAY ELEVATION C W
f, 111 .\ Q(100) SLOPE(%) ELEVATION
rr
Erosion of the bash surface has occurred Provide additional erosion protection such �r ' % oo �' /' W
or riprop is displaced os reinforced turf mattingor ri r H �' �' y '' '� GRASS SPILL STRAW WITH NET NAG I�
needed to prevent future erosionproblems �� �'� / 'r / \ �' REFER TO DETAIL \° SPILLWAY 42.07 CFS 5.00% 1.5� 10.0� 19A' 3:1 SHOREMAX W/ P300 447.0 445.5
�° j�` r ,
STORMWATER ,' '�� THIS SHEET < � VJ
Water is standing more than three days Replace the top few Inches of soil to see C \ `o
''� '� 'MANAGEMENT
after a storm event if this corrects the standing water problem, \ / ✓ / W
If not, consult an appropriate professional 1 EASEMENT �' "' ° EXTEND LINING TO
EXTEND LINING O
/ / `' \ TOP OF SPILLWAY T OF SPILLWAY TOP OF EMBANKMENT--447.0
for a more extensive repair Q \ i �'
e embankment Shrubs or trees are growing on the Remove trees and shrubs immediately \\ ` ) ) �'
embankment Ly� ; o / �. H CHANNEL LINING
---♦,._. � ` �� � � / � tea„
SPILLWAY ELEVATION=445.5
An annual inspection by an appropriate Make needed repairs Immediately > ' / /
♦ / O OBSERVATION MATTING SHALL BE AS NOTED
professional shows that the embankment v \ ' � DR APPROVED EQUAL g
needs repair ; ,/ o` / WELL (TYP.) ,�� •.srs�����
e outlet device Bogging has occurred Bean out the outlet device and dispose of ♦ ' $ , ,,, �•�C AR p
GRASS SPILLWAY DETAIL GRASS SOD ON SPILLWAY �� ••""••:��
sediment in a location where it wilt not ` / \\ AND SIDE SLOPES q
cause impacts to streams or the SCM ♦ _ °E oy'9
ry x
I SEAL
t
The outlet device is damaged Repair or replace the outlet device / N ` '
O
� � STAGE/STORAGE TABLE "�.,•�NY .,���;;'o
1► / / TOP OF ✓
e receiving water Erosion our other signs of dtmage have Repair the damage and improve the flow CONTOUR AREA INCREMENTAL TOTAL STORAGE �.
occurred at the outlet dissipation structure v �� Q \ ' ti STAGE(FT) ELEVATION (FT) (SF) STORAGE (CF) (CF) ��' 0
Q EMBANKMENT ti ! \ �''N••1#11% ••
Discharges from the infiltration trench are Contact the local NCDEQ Regional Office ♦ Q�/ ELEV=447.0 \� f 0.0 440.0 7755 0 0
causing erosionor sedimentation h the \\ v '" ,. -' RIP-RAP APRON � � ��' �" � • \ � °r � 1 1.0 441A 9040 8398 8398 -'"
INLET PIPE WITH
-----------
receiving water
♦ \ �\ '� 1.2 441.2 9300 1834 10232 (WQV)
♦\y \ �� $ /� _ / �\ f \ 2.0 442.0 10375 7870 18102
STORM DRAINAGE 3.0 443.0 11775 11075 29177
4.0 444.0 13225 12500 41677
OPERATION AND MAINTENANCE: /� BY OTHERS 5r0 445.0 14735 13980 55657
� / /' O\ O / 6.0 446.0 16300 15518 71174
North Carolina storm water rules require quarterly inspections by the regulating agency of infiltration areas as a minimum. More y
i "'� �/ rn� _ -ra p
frequent inspections by the land owner or system operator are strongly encouraged to ensure the proper operation of infiltration \ 7.0 447.0 17925 17113 88287
areas.
A. Rainfall Event (STORMWATER MANAGEMENT DESIGN INFILTRATION SYSTEM #1:
1. Inspect the basin after every rainfall event greater than 1.5 inches. GRAPHIC SCALE PLAN STATUS
8. Monthly Inspection RIVER BASIN: LUMBER 22 INITIAL SUBMISSION29 1. Inspect the basin monthly 50 0 25 50 too 200 RECEIVING STREAM: QUEWHIFFLE CREEK 09/ /
2. Check the infiltration area side slopes; remove trash and repair eroded areas before the next rainfall event. STREAM INDEX: 14-2-14 02/27/23 2ND SUBMISSION
3. Check the vegetative and rock filters for sediment accumulation, erosion and proper operation of the flow spreader STREAM CLASS: C
mechanism and repair as necessary. PLAN VIEW HUC 0304020302
C. Quarterly inspection ( IN FEET ) PROJECT COORDINATES: 35.94267N, -79.366191'W
1, Inspect the collection system (i.e. catch basin, pipes and grass swales) for proper functioning. Clear accumulated 1 inch = 50 fi~
trash from basin grates and basin bottoms. Check piping for obstructions. POND DESIGN SUMMARY
2- Check pond inlet pipes for undercutting, replace rip-rap and repair broken pipes. DRAINAGE AREA TO POND: 11.92 ACRES DATE DESCRIPTION
3. Reseed grassed swales, including the vegetated filter if applicable, twice a year as necessary. Repair eroded areas SITE IMPERVIOUS AREA TO POND: 2.35 ACRES
immediately. OFF-SITE DESIGN IMPERVIOUS AREA TO POND: 0.01 ACRES CB CB CEP
D. Six Month Inspection TOTAL DESIGN IMPERVIOUS AREA TO POND: 2.36 ACRES DESIGN DRAWN CHKD
1. Remove accumulated sediment from the bottom of the outlet structure or other areas where accumulated sediment
is noted. STORMWATER MANAGEMENT SYSTEM DETAILS PRE-DEVELOPED POST-DEVELOPED POST DEVELOPED H: 1° = 50'
2. Inspect the embankment taking note of any wet areas where water may be seeping through the soil. 4 TO POND TO POND THROUGH POND SCALE V.
E. General Inspection NOT TO SCALE DRAINAGE AREA: 11.92 AC 11.92 AC
1. Maximum grass height is to be 6in. CURVE NUMBER: 64.5 73.4 JOB No. 220151-01-001
2. No woody vegetation shall be allowed to grow in the infiltration area. 11ME OF CONCENTRATION: 17.02 MIN 5.0 MIN
3. Debris shall be removed from blocking the inlet and outlet structures and from areas of potential clogging. DATE SEPTEMBER 29, 2022
4. Periodic removal of dead vegetation shall be accomplished. 1.0" STORM EVENT: 3.543 CFS 0,000 CFS
5. All components of the infiltration system must be kept in good working order. 1-YEAR STORM EVENT: 5.374 CFS 18.58 CFS 0.000 CFS FILE No.
2-YEAR STORM EVENT: 10.03 CFS 27.35 CFS 0.000 CFS
10-YEAR STORM EVENT: 25.57 CFS 53.72 CFS 0.076 CFS
(a
100-YEAR STORM EVENT: 55.21 CFS 99.99 CFS 42.07 CFS ��++,,nn nn AA
SHEET SCM-1
Cad file name:P:\046-DoubleD\027-Ashley Heights-missing permit 220151 ngineering Engineering Plans Construction Plans\046-027-SWD.dwg

CONSTRUCTION SEQUENCE Tq, TOP OF STRUCTURE NOT SHOWN FOR CLARITY a PVC SCREW CAP RISER STRUCTURE
FOR WET DETENTION POND: STAGE/STORAGE TABLE �f7R 4,1
(REMOVABLE TRASH RACK) FOR CLEANING ACCESS
4rJ¢
1, INSTALL EROSION CONTROLS. STAGE (FT) ELEVATION (FT) /H
CONTOUR AREA INCREMENTAL TOTAL STORAGE
2 CONSTRUCT DAM BASE AND AREAS BELOW THE
0.0 411.0 2878 STORAGE (CF) (CF)
8780 0 0 WFjR e
NORMAL POOL. CONSTRUCTION O BE
PERFORMED UNDER THE INSPECTION OF THE 0.5 411.5 30970 14938 14938 4r24 12' MIN. EXTEND 4"
GEOTECHNICAL ENGINEER. SEED UPON 1.0 412.0 32320 15823 30760 PVC-
COMPLETION. 4' MIN 1.4 412.4 33415 13147 43907 WQ THROUGH
( V) RISER
I INSTALL OUTLET PIPE, RIP-RAP APRON AND EMBANKMENT WIDTH 10 413.0 35065 20544 64451 STRUCTURE
STONE FILTER RING, 3.0 414.0 37725 36395 100846 / 4"x4' PVC TEE
4. CONSTRUCT OUTLET STRUCTURE a TOPSOIL FOR ALL 4.0 415.0 40100 1 38913 1 139759 Q
POND411.0
AREAS ABOVE THE TRASH RACK
5. REMOVE ACCUMULATED SEDIMENT AND SEED NORMAL POND ELEVATION REFER TO DETAIL
UPON COMPLETION. THIS SHEET
36"
24' HOPE VWTH WATER TiGHT SEAL 12' MIN.
PIPE TO BE BEDDED TOP OF EMBANKMENT ELEVATION=415.0 OUTLET CONTROL STRUCTURE - INCREMENTAL WEIR
PER DIRECTION OF GEOTECHNICAL 6'TOPSOIL ABOVE NOTE: 1.0' STORM ELEVATION IS 411.07 AND INTERMEDIATE
WEIR IS ELEVATION 412.40. THERE IS ADDITIONAL STORAGE
ENGINEER SCALE N.T.S.
2 fi" CLAY LINER REFER TO DETAIL 100 YEAR STORM ELEVATION=414.59 DESIGNED FROM THE 1.0" STORM ELEVATION 1D THE
1 6"CLAY SOIL ON LITTORAL SHELF NCR INCREMENTAL INTERMEDIATE WEIR ELEVATION.
LINER ON INSIDE 6 0'x6 0' 3 6' TOPSOIL FOR ALL
I
FACE OF SEEPAGE COLLAR to YEAR STORM FVATION=413.3R AREAS ABOVE THE 2�•IDNTO BOTTOMICAP
EMBANKMENT SEE DETAIL -- 1 NORMAL POND ELEVATION
= 6 o PVC DRAIN OUTLET
CON PRECAST FOREBAY TOP ELEV= 413.0
6FT LITTORAL 1 CONCRETE RISER FOREBAY BER WIDTH AT TOP = 2.0 FT SCALE N.T.S.
SHE --- (INSTALL STEPS 2 YEAR STORM ELEVAl14N=412.66
AS NECESSARY) 1 YEAR STORM ELEVATION=412.39 6' TOPSOIL ABOVE
6" CLAY LINER 3:1 NOTE: PUMPS SHALL BE USED TO DRAIN
ON LITTORAL SHELF THE FOREBAY WHEN NECESSARY. REFER TO DETAIL
INVa411.0 1.0-INCH STORM ELEVATION=411.07 EXISTING GRADE=414.0t - -I SEDIMENT STORAGE THIS SHEET FOR DEWATERING REQUIREMENTS.
TOP FOR®NORMAL POND VATION=411,0 sFr LITTORAL ELEV BOTTOM ELE 08.0 �A
�6:1
a PVC ELBOW SHELF -- NORMAL POND ELEVATION
3' MIN SEE DETAIL 2 _ BOTTOM LITTORAL SHELF ELEV,
- -,
1 ELEV=409.0 ! J s I 2 _
_ NOTE PUMPS SHALL BE USED TO DRAIN 1 _ i I--1 -- - I- �
THE POND WHEN NECESSARY. REFER TO DETAIL =- - CLASS 2 RIP-RAP
�l
o i THIS SHEET FOR DEWAiERING REQUIREMENTS. I j - COVERED WITH CLASS ARIP-RAP
---
4' IN AS1M C-923 SEAL a a � .k" ' I- I � OVER FILTER FABRIC _ _, },
I I MIN, 4' WEIR AT ELEV=410.0 BOTTOM OF SEDIMENT I I- f -u o J
KEY STORAGE/EXIT - �- ` u7
BETWEEN BARREL do RISER _ n
CUTOFF TRENCH RISER BASE TO BE FILLED - --
WITH CONC. TO INVERT OF - Ian ( )- - I_.----' , -. N e7 1= O
BOTTOM OF POND TOP OF SEDIMENT STORAGE=406.0 - ELEV=408.0 --.
APPROXIMATE SIZE CONCRETE SHALL BE -�--- --_ I ! 4 Ii' AREAS ABOVE THE U LU Z
BARREL -- 6' TOPSOIL FOR ALL os ro
_ _��_ i I - w O U
EXCAVATE AND BACKFlLL 8'X8"Xi°X12' LONG ANGLE (6 TOT. REQUIRED) TO ANCHOR RISER TO PLACED IN RISER AFTER 4--I -- i ( I NORMAL POND ELEVATION CC tit
ANGLES ARE SECURED - (BOTTOM OF SEDIMENT STORAGE)=405.0 I�
WITH COMPACTED BASE PROVIDE 2-3/4 A307 BOLTS FROM ANGLE TO RISER AND -- --- o CO a
TO BASE AND RISER. --I ' BOTTOM OF SEDIMENT Z W o Z
2-A307 'J" HOOKS 3/4'DIA X 12" LONG FROM ANGLE TO BASE. - 1- ' _-
CO
SIRUCTURAL FILL A5 � �- I J i-- � ICID
ANGLE TO BE FIELD COATED VWTH ZINC RICH PAINT AFTER STORAGE/ENTRANCE 0 _I C -0 C
DIRECTED BY GEOTECHNICAL CONSTRUCTION. "J"HOOKS TO BE PLACED UNDER LOWER REINFORCING FOREBAY ENTRANCE SHALL BE p�V=407 p o Q o
ENGINEER DEEPER THAN FOREBAY EXIT E d• M C E
STEEL. 6' CLAY SOIL FOREBAY � °" 3
5'x5'xl.V CONC. BASE REINFORCE WITH #4 BARS AT 12"O.C. TOP LINER m m
AND BOTTOM OF EACH DIRECTION PROVIDE Y MIN. CLEARANCE MAIN POOL
31'-24' HOPE 0 1.61% BETWEEN EDGE OF CONC. AND STEEL REINFORCING. SHALLOW LAND ZONE
HERBACEOUS PLANTS SHALLOW WATER ZONE
HERBACEOUS PUNTS
PROFILE OF WET POND DETENTION SYSTEM
SCALE: N.T.S. NOTES- POND 44
1. SEE DESIGN PLANS FOR SPECIFIED DIMENSIONS OF RISER. (NORMAL POOL)
LTER MEDIA (SEE NOTE 2) 2. TRASH RACK DIMENSION CRITERIA SPECIFIED 15 APPROXIMATE AND VARIES BY MANUFACTURER. 1
3. INSTALLATION OF TRASH RACK SHALL BE ACCORDING TO MANUFACTURER'S RECOMMENDATIONS.
SILT FENCE AS NEEDED-," LIMP 4. ALL COMPONENTS OF TRASH RACK SHALL BE OF STAINLESS STEEL OR OTHER NON-CORROSIVE MATERIAL. 6 Cn
--- STORMWATER MANAGEMENT NOTES: 5. ALL MOUNTING HARDWARE SHALL BE OF STAINLESS STEEL OR OTHER NON-CORROSIVE MATERIAL. -�
TRASH RACK
TYPICAL LITTORAL SHELF VEGETATION DETAIL TT��
1. THE DEVELOPER OR H15 AGENT SHALL CONTACT THE DESIGN ENGINEER WHEN NON CORROSIVE MATERIAL (�
- THE BEST MANAGEMENT PRACTiCE(S) ARE CONSTRUCTED AND ABOUT TO 0 5.5' SPACING i' j `� SCALE N.T.S. w
BECOME OPERATIONAL 50 A FINAL INSPECTION CAN BE PERFORMED TO / E n
DETERMINE COMPLIANCE WITH THE APPROVED PLAN CAN BE PERFORMED. TRASH RACK i 0 0 z
NURSERY CONTAINER
ATER LEVEL 2, ANNUAL MAINTENANCE INSPECTION AND REPORT REQUIRED - THE OWNER OF , , . 5.5' SCIENTIFIC NAME COMMON NAME PLANTING ZONE QUANTITY .TYPE SPACING PLANTING SEASON
A PERMITTED STRUCTURAL STORMWATER BMP/CONTROL SHALT. ANNUALLY z
SUBMIT A MAINTENANCE AND INSPECTION REPORT FOR EACH BMP TO THE Jancus eftesus Soft Rush SHALLOW WATER 143 PEAT POT 6' D.C. SPRING/SUMMER
I. PRIOR TO INSTALLATION, MANUFACTURER SPECIFICATIONS OF FILTER MEDIA SHALL BE REVIEWED TO STORMWATER ADMINISTRATOR. ANNUAL INSPECTIONS SHALL BEGIN WITHIN I I
ENSURE THAT DISCHARGE FROM FILTER MEDIA SHALL MEET OR EXCEED THE PROVISIONS OF THE CLEAN 7 ONE YEAR OF THE RECORDATION OF ANY DEED(S) SHOWING STORMWATER I I I I 1 1 5.5"
WATER ACT, f BMPs/CONTROL STRUCTURES. I I I I Iris vrginica Blue Flag Iris SHALLOW WATER 143 PEAT POT 6' D.C. SPRING/SUMMER C 0
I I G
2 ENSURE THAT PUMP PRESSURE DOES NOT EXCEED FILTER MEDIA PRESSURE RATING �= 3. UPON COMPLETION OF THE PROJECT, AND BEFORE A CERTIFICATE OF I I 55• Schoenoplectus iabemaemontani Soft Stem Bulrush SHALLOW WATER 143 PEAT POT 6' O.C. SPRING/SUMMER W w FBI W
„- OCCUPANCY SHALL BE GRANTED, THE ENGINEER OF RECORD SHALL CERTIFY fVl t W Y
3. FILTER MEDIA MAY BE, BUT NOT LIMITED TO, SAND MEDIA FILTRATION DEVICES, RATED FILTER FABRIC �- THAT THE COMPLETED PROJECT IS IN ACCORDANCE WITH THE APPROVED p ph Spotted Trumpetweed SHALLOW WATER 143 PEAT POT 6' D.C. PRING/SUMMER (�
- _ I I Eu atoriodel us maculatus
BAGS OR POLYMER BASED DEWATERING PRACTICES. - STORMWATER MANAGEMENT PLANS AND DESIGNS. NOTE: RISER Q =
TRASH RACK SHALL BE INSPECTED
4. PUMP STRAINER SHALL NOT BE IN CONTACT WITH BOTTOM OF POND. - 4. A FINAL INSPECTION OF THE SITE AND STORMWATER MANAGEMENT I I PERIODICALLY AND ANY DEBRIS ON Eupotorium purpureurn Joe-Pye Weed SHALLOW WATER 143 PEAT POT 6' O.C. SPRING/SUMMER Z
BMP/CONTROLS TO BE SCHEDULED WITH AND COMPLETED BY THE PROJECT I I THE TRASH RACK IS TO BE REMOVED
-� T-� - - �" ENGINEER. AND PROPERLY DISPOSED OF. Rhynchoepora colarata Starrush Whitetop SHALLOW WATER 143 PEAT POT 6' O.C. SPRING/SUMMER
BMP POND DEWATERING LOW POINT 5. NCDEQ AND THEIR ASSIGNS HAVE RIGHT TO ACCESS THE STORMWATER
�' W o
CONTROL(s) FOR INSPECTIONS OR MAINTENANCE AS NECESSARY. RISERcc
6. THE ENGINEER'S CERTIFICATION OF COMPLETION WILL BE REQUIRED PRIOR TO RISER TRASH RACK DETAIL TYPICAL LITTORAL SHELF PLANTING SCHEDULE W �+ ► Z
SEEDBED PREPARATION: THE FINAL PLAT OR CERTIFICATE OF OCCUPANCY. THE STORMWATER 1�I a
1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL THREE INCHES DEEP OVER ADVERSE SOIL CONDITIONS, IF CONTROL IS TO BE INSPECTED TO ENSURE IT IS FUNCTIONING AS DESIGNED
AVAILABLE. AND HAS FULL DESIGN VOLUME PRIOR TO ISSUANCE OF THE FINAL Q Q
2. RIP THE ENTIRE AREA TO SIX INCHES DEEP. CERTIFICATE OF OCCUPANCY. STORMWATER MANAGEMENT DESIGN WET DETENTION POND #2: H >
3. REMOVE ALL LOOSE ROCK, ROOTS AND OTHER OBSTRUCTIONS. LEAVING SURFACE REASONABLY SMOOTH AND 7. THE PROPERTY OWNER IS RESPONSIBLE FOR MAINTAINING THE STORMWATER RIVER BASIN: LUMBER CC �y M
UNIFORM. CONTROLS(s) ACCORDING TO THE APPROVED MAINTENANCE PLAN AND RECEIVING STREAM: QUEWHIFFLE CREEK G 1� W
4. APPLY AGRICULTURAL LIME, FERTILIZER, AND SUPERPHOSPHATE UNIFORMLY AND MIX VVITH SOIL(SEE SEEDING DIRECTION OF NCDEQ. STREAM INDEX: 14-2-14 V}
MIXTURE). STREAM CLASS: C OPERATION & MAINTENANCE H WW
5. CONTINUE TiLLAGE UNTIL AWELL-PULVERIZED, FIRM, REASONABLY UNIFORM SEEDBED IS PREPARED FOUR TO SIX
INCHES DEEP. HUC: 0304020302 BMP element: Potential problem; How I will remediate the roblem
6. SEED ON A FRESHLY PREPARED SEEDBED AND COVER SEED LIGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK PROJECT COORDINATES: 35,94267N, -79.366191'W Trash debris is present Remove the trash debris
AFTER SEEDING, e entire BMP
7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH. \ �� \� \ \ POND DESIGN SUMMARY ®Perimeter o e we Areas of bare soll and or egra e e s necessary o
8. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS OR RE-SEEDINGS WITHIN THE PLANTING SEASON, IF ��. etention basin erosive ullies have formed remove the II and then plant
POSSIBLE. IF STAND SHOULD BE MORE THAN 60%DAMAGED, RE-ESTABLISH FOLLOWING THE ORIGINAL LIME, \ / DRAINAGE AREA TO POND: 13.55 ACRES 9 a ground cov!yand water util it
FERTILIZER AND SEEDING RATES. ) MAIN POND AREA `� v SITE IMPERVIOUS AREA TO POND: 3.07 ACRES is established. Provide Ilme and
9. CONSULT S&EC ENVIRONMENTAL ENGINEERS ON MAINTENANCE TREATMENT AND FERTILIZATION AFTER PERMANENT CONCRETE TOP OF �- -' \,. \ \ ` ®f \ OFF-SITE DESIGN IMPERVIOUS AREA TO POND: 0,0 ACRES a one-the fedfizer application
COVER IS ESTABLISHED. \ r, �� �� TOTAL DESIGN IMPERVIOUS AREA TO POND: 3.07 ACRES Vegetation Is too short or too a n a n v on a a height
/ 0 longof approximately six Inches.
LANDSCAPING NOTES: SEEPAGE \ EMBANKMENT / \ e Inlet device: pipe or The pipe is dogged. unclog the pipe. Dispose of the
( PRE-DEVELOPED POST-DEVELOPED POST DEVELOPED wale sediment H-sf e.
ALL LANDSCAPING SHALL BE IN COMPLIANCE WITH THE NCDEQ BMP REQUIREMENTS. COLLAR f 7 ELEV=415.0 / / \ ` SOD AREAS ABOVE �\ TO POND TO POND THROUGH POND e p pe s crackedor ace a pipe,
t' / \ NORMAL POOL \ DRAINAGE AREA: 13,55 AC 13.55 AC otherwise dame
LANDSCAPE CONTRACTOR SHALL PROVIDE A TWO-YEAR WARRANTY FOR BMP PLANTING SURVIVAL/REPLACEMENT. -- w,•.,_, // / \ \ �� \� CURVE NUMBER: 62.4 76,8 r an occurring n e egra e el swore necessary
EELVATION � � swde. to smooth tt over and provide
., TIME OF CONCENTRATION: 24.0 MIN 5.0 MIN erosion control devices such as .••°"'►••
AT THE END OF THE FIRST YEAR AND AT THE END OF THE TWO-YEAR WARRANTY PERIOD, ALL PLANTS THAT 00 NOT 24 OUTLET PIPE / \"� reinforced turf matting or ripro C A
SURVIVE MUST BE REPLACED. / �\ \ /\�� to avoid future problems with p �' \�•,,,,•R�� '°.
REFER TO GRADING / \ ,,�\ 1.0" STORM EVENT: 0,194 CFS 0.010 CFS erosion, Q
ESTABLISHMENT PROCEDURES, SUCH AS CONTROL OF INVASNE WEEDS, ANIMAL AND VANDAL DAMAGE, MULCHING, PLAN �\ �� 1 1-YEAR STORM EVENT: 3.827 CFS 25.55 CFS 0.182 CFS a forebay Sediment has accumulated to Search for the source of the
RE-STAKING, WATERING, AND MESH OR TUBE PROTECTION REPLACEMENT, SHALL BE IMPLEMENTED TO THE EXTEND \ 2-YEAR STORM EVENT: 7.698 CFS 36.20 CFS 0.635 CFS a depth greater than the sediment and remedy the o�
\ 10-YEAR STORM EVENT: 21.74 CFS 67.92 CFS 3.438 CFS orl���al design depth for problem if possible. Remove the SEAL
NEEDED TO ENSURE PLANT SURVIVAL. STAKING MUST BE REMOVED AFTER ESTABLISHMENT (APPROXIMATELY 12 FES \ sediment storage. sediment and dispose of it in a -
MONfHS),TO PRIEVENT GIRDLING (STRANGLING) OF ALL WOODY PLANTS. �' / / \ ` �� ��'� 100-YEAR STORM EVENT: 49.06 CFS 121.39 CFS 23.97 CFS location where it will not cause 051571
ELEV=410.5 r \ �� Vt tan cis to streams or the BMP. '
SOD WITHIN BMP AND SURROUNDING AREAS TO BE BtRMUDA OR CENTIPEDE GRASS. / \ \ \ `� INLET PIPE WITH rosion as occurProvide additional erosion : C".;�N­I NEOg;:"QO
RIP-RAP APRON - protection such as reinforced turf
GRASS OR WILDFLOWER SEED MUSE BE APPLIED AT THE RATES SPECIFIED BY THE SUPPLIERS. IF PLANT ( ` \ 12 6.O matting or rtprap if needed to �����
\ `` revant future erosion roblems 0__E. �•`
ESTABLISHMENT CANNOT ACHIEVED WITH SEEDING BY THE TiME OF SUBSTANTIAL COMPLETION OF THE STORMWATER �/ \ i� \ , 3O, ee s are presen emove a Wee de, prefera y X e• °'
FACILITY PORTION OF THE PROJECT, THEN THE CONTRACTOR SHALL PLANT THE AREA WITH WILDFLOWER SOD, PLUGS, \ , \- hand. If K Ice is used, wipe it
CONTAINER PLANTS, OR OTHER MEANS TO COMPLETE THE SPECIFIED PLANTING AND PROTECT AGAINST EROSION / i T \ ,. ! ` f $nrathn plants rather than'/�Y/
BEFORE WATER IS ALLOWED TO ENTER THE STORMWATER BMP FACILITY. \,/ -e / \\ v
\ e vegetated s e pro sdon practices rune according o e
ALL MATERIALS SHALL BE ACQUIRED FROM AN APPROVED NCDEQ PLANT VENDOR. PLANT MATERIAL SHOULD BE �� ° ',d °, °.' show that pruning is needed professional practices
OUTLET CONTROL \_ \ o \ d ° to maintain optimal plant
PURCHASED FROM A LOCAL SOURCE TO ENSURE SURVIVABILITY, LOCAL VENDORS FOR THIS SITE INCLUDE: .' °
i a' a ° d• d4 REBAR A 12° OC Plants are dead, diseased or Determine the source of the
- CILL IDE NATIVE PLANT NURSER s1s-s62-556s STRUCTURE REFER \ health.
'°' IN FRONT & REAR FACE
- GROWING WILD NURSERY 910-259-6361 \ TO DETAILS ON - -�--- \x -` L _ / ' dying.
- NC FOREST SERVICE 919-731-7988 �, ° „ OF COLLAR. REBAR TOproblem: soils hydrology, disease,
etc. Remedy the problem and
THIS SHEET / \ • '° AVE 3' MIN. CONC COVER Y P
- PLANT DELIGHTS NURSERY 919-772-4794 V .ram -- \ ,` t »• replace plants. Provide a
- TARHEEL NATIVE TREES 919-553-5927 I N V=411.0 \ %� „ "A FROM EDGE OR FACE OF COLLAR one-time fertilizer application to
STORMWATER \ / d a a establish the ground cover If a
IMMEDIATELY AFTER THE WET DETENTION BASIN IS ESTABLISHED, THE PLANTS ON THE VEGETATED SHELF AND MANAGEMENT \ �• / ° so] test indicotes it is necessary.
PERIMETER OF THE BASIN SHOULD BE WATERED TWICE WEEKLY IF NEEDED UNTIL THE PLANTS BECOME ESTABLISHED \ '` \ / •;••;� .+ e' ea s are present, Remove a wee s� preferably X
EASEMENT
COMMONLY SIX WEEKS \
( ) a ad �° ' a. NOTES on the d. f plants rather thar pesticide is i ape it
NO PORTION OF THE WET DETENTION POND SHOULD BE FERTILIZED AFTER THE FIRST INITIAL FtRfWZATION THAT IS \ • d y I. ALL CONCRETE TO BE 3000 PSI NON-FLY s ra'n .
�. i e main treatment area Sediment has accumulated to Search for the source of the PLAN STATUS
REQUIRED TO ESTABLISH THE PLANTS ON THE VEGETATED SHELF. ^'J_ LITERAL SHELF ` / •�J'�• i ,' ° ° AGIt a depth ratter than the sediment and remedy the ITiAL SUBMISSION
\ AREA=3,410 SF \\ �' STORM DRAINAGE ,° 2. APPLY r THICK WRAP OF ASPHALTIC original dgesign sediment problem if possible. Remove the 09/29/22 IN
LANDSCAPING NOTES: l \ _ __ '' ° a CEMENT AROUND DISCHARGE PIPE 6' storage depth. sediment and dispose of it in a
1 REFER TO DETAIL - .� / •••;BY OTHERS _ -- " a Iota' it not cause 02 27 23 2ND SUBMISSION
1. CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE CODES AND ORDINANCES REGARDING LANDSCAPING. ® , FOR PLANTINGS '` \ / i.4�•' • : d 24 HOPE q BEYOND PLANNED SEEPAGE COLLAR ON
on where
\ BOTH SLOES. impacts to streams or the BMP.
2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO ESTABLISH A HEALTHY STAND OF GRASS ON ALL SEEDED �` \ ' w�• '� .� `. ga gro covers over Consulta pro ess Dina o remove
\ / . a 3. APPLY ADDITIONAL ASPHALTIC CEMENT AT
\ ., ...R ,-� ,��ti�, �\ y of the area, and control the al I rowth.
3 CONTRACTOR SHALL PROVIDE NATURAL TOPSOIL THAT IS FERTILE, FRIABLE, WITHOUT MIXTURE OF SUBSOIL \ - ` ° e PIPE/SEEPAGE COLLAR INTERFACE ON ats, m ee or other Remove a plants wiping
AREAS. \ v»
L \ CLASS 2 RIP-RAP �_ ✓ •• M �' •� �.�.+_'.• ' UPSTREAM FACES. invasive plants cover 50%of them with pesticide tdo nog
MATERIALS, AND OBTAINED FROM A WELL DRAINED, AVAILABLE SITE, IT SHALL NOT CONTAIN SUBSTANCES 4` COVERED WI1N \\ » FOREBAY AREA r� `e, ° e ° 4. iD BE FIELD INSPECTED BY GEOTECHNICAL the basin surface. s ra
WHICH MAY BE HARMFUL TO PLANT GROWTH. TOPSOIL SHALL BE SCREENED AND FREE FROM CLAY, LUMPS - r•; • • '.P •• .r• °' ENGINEER. ASPHALTIC CEMENT TO MEET OR a em n en Shrubs have started o row emove shrubsimmediately,
STONES, ROOTS, PLANTS, OR SIMILAR SUBSTANCES 1" OR MORE IN DIAMETER, DEBRIS, OR OTHER OBJECTS \ ,° /`. CLASS A RIP-RAP \ - ' • d : • o.•. • d e9DATE DESCRIPTION
• . . • y 1 . � .. °• , m 'd• EXCEED FEDERAL SPECIFICATION SS-153 an the embankment
• ! ' ° TYPE 1: ASTM-D-2822-75 TYPE 1. traps WHICH MIGHT BE A HINDtRANCE r0 PLANTING OPERATIONS iOPSOiL SHALL CONTAIN AT LEAST h6R ORGANIC . OVER FILTER FABRIC" �.. `�- �' ' l �' ' sS �• a •. „' Evidence o muskrat or saver Use s o remove muskrats
MATTER BY WEIGHT AND HAVE A PH RANGE OF 5.5 TO 7.0. ` '' 'i�'•' �• 1r ' ' N1 °' activity is present. and consult a professional to CB CB CEP
4. CONTRACTOR SHALL BE RESPONSIBLE FOR THE WATERING AND THE MAINTENANCE OF ALL LANDSCAPED AREAS \� - e AT FOREBAY WEIR ; .! ... '• iN r ..• ° ° ° ° °d '' d remove beavers.
UNTIL THE LATER OF; a THIRTY 30 DAYS FOLLOWING THE PLANTING OF THE GRASS AND SHRUBS, OR b `a _ _ t� •• y•;ry''�+ ' �' °, ° A tree has started to grow on Consult a dam safety specialist DESIGN DRAWN CHKD
O ( ) O \d - / .�� .,� f1 ° , the embankment, to remove the tree.
THE DATE THAT STORE OPENS FOR BUSINESS TO THE PUBLIC. CONTRACTOR SHALL ALSO BE RESPONSIBILITY "� '•tM a' An annual Inn ection b an Make all needed repays. H: 1" = 50'
FOR THE SURVIVAL OF THE BMP PLANTING MATERIALS DURING THE TWO-YEAR WARRANTY PERIOD AND SHALL ,. ° ° propprfate professional asional shows SCALE
REPLACE ALL PLANTS THAT DO NOT SURVIVE AT THE END OF THE FIRST YEAR AND AT THE END OF THE ". 7 , ; `�, d d ,°• d °,' V that the embankment needs V'
SECOND YEAR of THE WARRANTY PERIOD. GRAPHIC SCALE repair. if° licable OB No. 2201 51-01-001
5. CONTRACTOR TO VERIFY QUANTITIES PRIOR TO COMMENCING WORK. o e outlet device Clogging has occurred. can outa outlet off
Dis it of the sedhe outlet off-site.
6. ANY DISTURBED AREAS NOT SCHEDULED FOR HARDSCAPE, PLANTINGS, OR MULCH SHALL BE SEEDED LAWN. 5o a 25 50 100 200 The outlet device is dame ed epatr or r ace a
REFER TO SITE PLAN FOR LOCATION OF AREAS TO BE SODDED. CONCRETE SEEPAGE COLLAR g device. DATE SEPTEMBER 29, 2022
7. NO PLANT SUBSTITUTIONS ARE PERMITTED WITHOUT WRITTEN APPROVAL OF THE OWNERS REPRESENTATIVE. PLAN VIEW a receiving water Erosion or other signs of Contact the local NC Division of
EL FOR NEW PLANING AREAS, REMOVE ALL PAVEMENT, GRAVEL SUB-BASE AND CONSTRUCTION DEBRIS; REMOVE SCALE N.T.S. damage have occurred at the Water Quality Regional Office, or FILE N0.
COMPACTED SOIL AND ADD 18" NEW TOPSOIL, OR ALL AND AMEND THE TOP 18" OF EXISTING SOIL TO MEET outlet, the 401 Oversight Unit at
TOPSOIL/PLANTING MIX STANDARDS FOR TREES. ( IN FEET ) r"-� STORMWATER MANAGEMENT SYSTEM DETAILS 919-733-1786'
9. ADJUST TREE PLANING LOCATIONS TO AVOID UNDERGROUND UTILITIES. PLANT 15' FROM ALL UNDERGROUND 1 inch = 50 ft. i ��++//--++nn AA
UTILITIES (SEWER AND STORM DRAINAGE, GAS, WATER, PHONE, AND ELECTRICAL UNES.) NOT TO SCALE SHEET ` CM 2
Cad file name:P;\048-DoubleD\027-Ashley Heights-missing permit 220151 \Engineering\Engineering Plans Construction Plans 048-027-SWD.dwg

rFOR
TOP OF STRUCTURE NOT SHOWN FOR CLARITY 6' PVC CREW CAP RISER STRUCTURE
NSTRUCTION SEQUENCESTAGE/STORAGE TABLE ` FLOW LONG TOP OF EMBANKMENT r0P (REMOVABLE TRASH RACK) FOR CLEANISNGG ACCESS
r SPILLWAY H B W SS CHANNEL LINING ELEVATION SPILLWAY ELEVATIONwF/ 418 WET DETENTION POND: CONTOUR AREA INCREMENTAL TOTAL STORAGE ` Q(100) SLOPE(%) > s
STAGE (FT) ELEVATION (FT) (SF) STORAGE (CF) (CF)
1. INSTALL EROSION CONTROLS. UA 415.0 71000 0 0 117.08 EOIq
SPILLWAY 5.00% 1.0 30.0 36.0 3;1 STRAW WITH NET NAG 421.0 420.0
SHOREMAX W P300 , �/R EXTEND 6"
2. CONSTRUCT DAM BASE AND AREAS BELOW THE 0.5 415.5 75135 36534 36534 ` CFS 41.7 12' MIN.
NORMAL POOL. CONSTRUCTION TO BE 1.0 416.0 77720 38214 74748 `.✓ ✓J✓\�✓`� ._.I r. J.i ✓ `� `�✓�.�`J ✓✓ THROUGH
PVC
PERFORMED UNDER THE INSPECTION OF THE
GEOTECHNICAL ENGINEER. SEED UPON 20 417.d 82930 80325 155073 W
COMPLETION. 4' MIN 2.1 417.1 83455 8319 163392 (WQV) EXTEND LINING TO EXTEND LINING TO STRUCTURE
EMBANKMENT WIDTH TOP OF SPILLWAY
3. INSTALL OUTLET PIPE, RIP-RAP APRON AND 3.0 41E3.0 87D300 77065 240457 TOP OF SPILLWAY TOP OF EMBANKMENT=421.0
STONE FILTER RING. 4.0 419.0 91825 89813 330269 30 S4 f� 6'x6" PVC TEE
5.0 420.0 95910 93BBB 424137
4. CONSTRUCT OUTLET STRUCTURE 6' TOPSOIL FOR ALL 6.0 421.0 100055 97983 522119 � H CHANNEL LINING �� PERM. POND ELEV=415.0
AREAS ABOVE THE TRASH RACK
SPILLWAY ELEVATION=420.0
5. REMOVE ACCUMULATED SEDIMENT AND SEED NORMAL POND ELEVATION REFER TO DETAIL
UPON COMPLETION. THIS SHEET MATTING SHALL BE AS NOTED
OR APPROVED EQUAL �- B
36"
���..,����.,.1 GRASS SPILLWAY DETAIL GRASS SOD ON SPILLWAY 12 MIN.
24' HOPE WITH WATER TIGHT SEAL AND SIDE SLOPES
PIPE TO BE BEDDED TOP OF EMBANKMENT ELEVATION=421.D OUTLET CONTROL STRUCTURE - INCREMENTAL WEIR
1 NOTE: 1.0' STORM ELEVATION IS 415.05 AND INTERMEDIATE SCALE: N.T.S.
PER DIRECTION OF GEOTECHNICAL 6" TOPSOIL ABOVE ` / WEIR IS ELEVATION 417.1. THERE IS ADDITIONAL STORAGE
6' CLAY LINER REFER TO DETAIL rnn YEAR �rneM EVATION=420.89 ♦ DESIGNED FROM THE 1.0" STORM ELEVATION TO THE
ENGINEER 2 - - - - ON LITTORAL SHELF FOR INCREMENTAL 1/ INTERMEDIATE WEIR ELEVATION. 6'TOPSOIL FOR ALL
4"�NTOHBO BOTTOM CAP
1 6" CLAY SOIL 3 WEIR ` AREAS ABOVE THE
LINER ON INSIDE 6.O'x6.0 ( !
FACE OF _ ` 1a YEAR STORM ELEVATION=41(i45 � NORMAL.POND ELEVATION
EMBANKMENT COLLAR - -�1 ( PVC DRAIN OUTLET
6 4'x4' PRECAST ` FOREBAY BER FOREBAY TOP ELEV= 417.0 SCALE N.T.S.
�d , WIDTH AT TOP = 2.0 FT
6FT.LITTORAL 1 CONCRETE RISER ( 2 YEAR STORM ELEVATION=417.37
SHELF - INSTALL STEPS `
AS NECESSARY) ` 1 YEAR STORM ELEVATION=417.09 , 6' TOPSOIL ABOVE
6' CLAY LINER 3:1 - - NOTE PUMPS SHALL E USED TO DRAIN
l` ON LITTORAL SHELF THE FOREBAY WHEN NECESSARY. REFER TO DETAIL
( 1.0-INCH STORM ELEVATION-415.05 EXISTING GRADE=422.at - - - SEDIMENT STORAGE THIS SHEET FOR DEWATERING REQUIREMENTS
INV=415.D ` - _I �.� TOP FOR®AELYEVV=BOTTOM
�1
NORMAL POND ELEVATION=415.0 6FT LITTORAL
.I-�✓ .i �. J�I r i SH(1F fist I _
'r•�•;;;''j•,, t'`,' PVC (IRON BOTTOM LITTORAL SHELF D ELEVATION
-I
'may?,.;',<•: ,,,i�•:�, SEE DETAIL 2 - --
3' MIN - - -
ELEV=413.0 2 NOTE PUMPS SHALL BE USED TO DRAIN 1
' ' THE POND WHEN NECESSARY. REFER TO DETAIL CLASS 2 RIP-RAP
= COVERED WITH CLASS A RIP-RAP = -
',' ; THIS SHEET FOR DEWATERING REQUIREMENTS. OVER FILTER FABRIC 'V �
4' IN. ASTM C-923 SEAL ` ' - - - MIN. 4' WEIR AT ELEV=414.a BOTTOM OF SEDIMENT - iL ca � co
KEY BETWEEN BARREL do RISER. - ELEV=413.0 - O CV C)
10
STORAGE/EXIT
RISER BASE TO BE FILLED - BOTTOM OF POND (TOP OF SEDIMENT STORAGE)=410.0 - - - - _ LID
CUTOFF TRENCH WITH CONC. TD INVERT OF - - AREAS TOPSOIL FOR ALL W - U
BARREL CONCRETE SHALL BE NORMAL POND ELEVATION � cc a) z �
APPROXIMATE SIZE PLACED IN RISER AFTER
EXCAVATE AND BACIo-ILL 8'X8"XI'X12' LONG ANGLE (6 TOT. REQUIRED) TO ANCHOR RISER TO ANGLES ARE SECURED - (BOTTOM OF SEDIMENT STORAGE)=409.0 - Q a
WITH COMPACTED BASE.PROVIDE 2-3/4" A397 BOLTS FROM ANGLE TO RISER AND TO BASE AND RISER. - - - - - - - Z 0 3 Z
2-A307 'J' HOOKS 3/4' DIA X 12' LONG FROM ANGLE TO BASE. - - - - - - _ BOTTOM OF SEDIMENT
STRUCTURAL FILL AS ANGLE K 3 FIELD COATED WITH ZINC RICH PAINT AFTER STORAGE/ENTRANCE o J E
FOREBAY ENTRANCE SHALL BE ELEV=410.0 � � � � E
DIRECTED BY GEOTECHNICAL CONSTRUCTION. "J'HOOKS TO BE PLACED UNDER LOWER REINFORCING DEEPER THAN FOREBAY EXIT
3
STEEL 6' CLAY SOIL FOREBAY m ca
ENGINEER 56'0.5 OONC. BASE REINFORCE WITH #4 BARS AT Ilf O.C. TOP LINER
AND BOTTOM OF EACH DIRECTION PROVIDE 3' MIN, CLEARANCE MAIN POOL
BETWEEN EDGE OF CONC. AND STEEL REINFORCING. SHALLOW UAND ZONE
HERBACEOUS PLANTS SFIALLOW WATER ZONE
37'-24" HOPE 0 1.08%
HERBACEOUS PLANTS
PROFILE OF WET POND DETENTION SYSTEM
POND
44
SCALE N,T.S. 1�SEE DESIGN PLANS FOR SPECIFIED DIMENSIONS OF RISER. (NORMAL POOL)
2. TRASH RACK DIMENSION CRITERIA SPECIFIED 15 APPROXIMATE AND VARIER BY MANUFACTURER. 1 C )
LTIR MEDIA (SEE NOTE 2) 3. INSTALLATION OF TRASH RACK SHALL BE ACCORDING TO MANUFACTURER'S RECOMMENDATIONS. v J
4. ALL COMPONENTS OF TRASH RACK SHALL BE OF STAINLESS STEEL OR OTHER NON-CORROSIVE MATERIAL 6
SILT FENCE AS NEEDED LIMP 5. ALL MOUNTING HARDWARE SHALL BE OF STAINLESS STEEL OR OTHER NON-CORROSIVE MATERIAL.
-FL STORMWATER MANAGEMENT NOTES: TRASH RACK l-+-I
TYPICAL LITTORAL SHELF VEGETATION DETAIL
1. THE DEVELOPER OR HIS AGENT SHALL CONTACT THE DESIGN ENGINEER WHEN NON CORROSIVE MATERIAL �� WW �� 5.5" U
THE BEST MANAGEMENT PRACTICE(S) ARE CONSTRUCTED AND ABOUT TO 0 5.5" SPACING % ; �\ SCALE N.T.S. C) 0 w
Oly BECOME OPERATIONAL SO A FINAL INSPECTION CAN BE PERFORMED TO �--+ z
DETERMINE COMPLIANCE WITH THE APPROVED PLAN CAN BE PERFORMED. TRASH RACK \ \\ NURSERY CONTAINER
5.5' SCIENTIFIC NAME COMMON NAME PLANTING ZONE QUANTITY TYPE SPACING PLANTING SEASON
NOTES: ATER LEVEL 2. ANNUAL MAINTENANCE INSPECTION AND REPORT REQUIRED - THE OWNER OF �i WW \��
A PERMITTED STRUCTURAL STORMWATER BMP/CONTROL SHALL ANNUALLY z z
SUBMIT A MAINTENANCE AND INSPECTION REPORT FOR EACH BMP TO THEf F Jancus effesus Soft Rush SHALLOW WATER 261 PEAT POT 6' O.C. SPRING/SUMMER � � n
1. PRIOR TO INSTALLATION, MANUFACTURER SPECIFICATIONS OF FILTER MEDIA SHALL BE REVIEWED TO STORMWATER ADMINISTRATOR. ANNUAL INSPECTIONS SHALL BEGIN WITHIN 5.5' Iris vrginica Blue Flag Iris SHALLOW WATER 261 PEAT POT 6' D.C. SPRING/SUMMER
I I I I n
ENSURE THAT DISCHARGE FROM FILTER MEDIA SHALL MEET OR EXCEED THE PROVISIONS OF THE CLEAN ONE YEAR OF THE RECORDATION OF ANY DEED(S) SHOWING STORMWATER I I
I I I I
I I I I V
BMPs/CONTROL STRUCTURES. I I I I I I
WATER ACT. i
3. UPON COMPLETION OF THE PROJECT, AND BEFORE A CERTIFICATE OF Schoenoplectus tabemaemontani Soft Stem Bulrush SHALLOW WATER 261 PEAT POT 6' O.C. SPRING/SUMMER W � � W
2. ENSURE THAT PUMP PRESSURE DOES NOT EXCEED FILTER MEDIA PRESSURE RATING. / OCCUPANCY SHALL BE GRANTED, THE ENGINEER OF RECORD SHALL CERTIFY I I 5.5 r�i'J� ,Y^�
Eupatoriodelphus maculatus Spotted Trumpetweed SHALLOW WATER 261 PEAT POT 6' O.C. SPRING/SUMMER Q 0
3. FILTER MEDIA MAY BE, BUT NOT LIMITED TO, SAND MEDIA FILTRATION DEVICES, RATED FILTER FABRIC THAT THE COMPLETED PROJECT IS IN ACCORDANCE WITH THE APPROVED I I RISER ��TT�� _
BAGS OR POLYMER BASED DEWATERING PRACTICES. STORMWATER MANAGEMENT PLANS AND DESIGNS. � RACK SHALL BE INSPECTED z 44
4. PUMP STRAINER SHALL NOT BE IN CONTACT WITH BOTTOM OF POND. 4. A FINAL INSPECTION OF THE SITE AND STORMWATER MANAGEMENT I 1 PERIODICALLY AND ANY DEBRIS ON Eupatorium purpureurn Joe-Pye Weed SHALLOW WATER 261 PEAT POT 6' O.C. SPRtlJG/SUMMER �j
i - BMP/CONTROLS TO BE SCHEDULED WITH AND COMPLETED BY THE PROJECT I I THE TRASH RACK IS TO BE REMOVED r Q
I f ENGINEER. AND PROPERLY[ISPOSED 0F. Rhynchospora colorata Starrush Whitetop SHALLOW WATER 261 PEAT POT 6' O.C. SPRING/SUMMER c �] O
BMP POND DEWATERING LOW POINT 5. NCDEQ AND THEIR ASSIGNS HAVE RIGHT TO ACCESS THE STORMWATER
CONTROL(s) FOR INSPECTIONS OR MAINTENANCE AS NECESSARY. RISER RISER TRASH RACK DETAIL TYPICAL LITTORAL SHELF PLANTING SCHEDULE w z
6. THE ENGINEER'S CERTIFICATION OF COMPLETION WILL BE REQUIRED PRIOR TO � O
SEEDBED PREPARATION: THE FINAL PLAT OR CERTIFICATE OF OCCUPANCY. THE STORMWATFR
CONTROL IS TO BE INSPECTED TO ENSURE IT IS FUNCTIONING AS DESIGNED 1 V� ~
1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL THREE INCHES DEEP OVER ADVERSE SOIL CONDITIONS, IF AND HAS FULL DESIGN VOLUME PRIOR TO ISSUANCE OF THE FINAL STORMWATER MANAGEMENT DESIGN WET DETENTION POND #3: H
AVAILABLE. CERTIFICATE OF OCCUPANCY. ir
2. RIP THE ENTIRE AREA TO SIX INCHES DEEP. I RIVER BASIN: LUMBER W
3. REMOVE ALL LOOSE ROCK, ROOTS AND OTHER OBSTRUCTIONS, LEAVING SURFACE REASONABLY SMOOTH AND 7. THE PROPERTY OWNER IS RESPONSIBLE FOR MAINTAINING THE STORMWATER ` >
UNIFORM. CONTROLS(s) ACCORDING TO THE APPROVED MAINTENANCE PLAN AND RECEIVING STREAM: QUEWHIFFLE CREEK
4. APPLY AGRICULTURAL LIME, FERTILIZER, AND SUPERPHOSPHATE UNIFORMLY AND MIX WITH SOIL(SEE SEEDING DIRECTION OF NCDEQ. STREAM INDEX 14-2-14 > OPERATION & MAINTENANCE
MIXTURE). STREAM CLASS: C
5. CONTINUE TILLAGE UNTIL A WELL-PULVERIZED, FIRM, REASONABLY UNIFORM SEEDBED IS PREPARED FOUR TO SIX HUC 0304020302 1 BMP element: Potential Problem: How I will remediate the Problem
INCHES DEEP. �'� �'r -� \�"�� �'� �\�\ r\ �`i- i- PROJECT COORDINATES: 35.94267N, -79.366191'W ; ent Trash debris is present Remove the trash debris
6. SEED ON A FRESHLY PREPARED SEEDBED AND COVER SEED UGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK ( r ) e Perim BMP f
` e Perimeter o ewe Areas of bare loll and or ego e e s necessary o
AFTER SEEDING. etention basn erosive gullies have formedY P
7. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH. / / �'' ` �' \ POND DESIGN SUMMARY remove the gully, then loot
B. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS OR RE-S®INGS WITHIN THE PLANTING SEASON, IF ` �'�. d- ���` l���,�_ CLASS 2 RIP-RAP \y - -- r' (/ _ �� ,$ F j 1 `! / ` DRAINAGE AREA TO POND: 62.66 ACRES a Bound co and water until it
POSSIBLE IF STAND SHOULD BE MORE THAN 60%DAMAGED, RE-ESTABLISH FOLLOWING THE ORIGINAL LIME, / "" ' �j ' �' : } \ \� / SITE IMPERVIOUS AREA TO POND: 12.21 ACRES is established. Provide lime and
FERTILIZER AND SEEDING RATES. ` < Q > COVERED WITH �� <� ♦ a ion Is too short or too
a one-time a fertilizer application
OO� „ \ / �� > OFF-SITE DESIGN IMPERVIOUS AREA TO POND: 252 ACRES > Ve et t t a a vegetation a a
9. CONSULT S&EC ENVIRONMENTAL ENGINEERS ON MAINTENANCE TREATMENT AND FERTILIZATION AFTER PERMANENT 'i ""' ` ' J/ e
\�\- �\ P0! CLASS A RIP-RAP' i -� �r / \ TOTAL DESIGN IMPERVIOUS AREA TO POND: 14.73 ACRES long of approximately six inches.
COVER IS ESTABLISHED. O ` OVER FILTER FABRIC ` ` 'ti �' '`�'' \ �` 1 p
\J / P>P pipe 99� 09 ff Pe P\ 1 e filet device, a or The t e Is do sediment a r site. one of the
PIN NOTES: - =- \ AT FOREBAY WEIR / '� / PRE-DEVELOPED POST-DEVELOPED POST DEVELOPED ale
LANDSCA ❑ ❑ S e e s trot or ace e
' SOD AREAS ABOVE FOREBAY AREA \\�� ♦ > ` TO POND TO POND THROUGH POND otherpw�se llama pp
ALL LANDSCAPING SHALL BE IN COMPLIANCE WENT THE NCDEQ BMP REQUIREMENTS. �' - x`• \ DRAINAGE AREA: 62.66 AC 6266 AC r on occurring n e ego e e swa a necessary
NORMAL POOL ,� 1� S� \\ ( swde. to smooth tt over and provide
r ` CURVE NUMBER: 54.6 72.9 1 . �.�.
as
LANDSCAPE CONTRACTOR SHALL PROVIDE A TWO-YEAR WARRANTY FOR BMP PLANTING SURVIVAL REPLACEMENT. �O ` o STORM DRAINAGE erosion control devices such ro
� � ( TIME OF CONCENTRATION: 31.9 MIN 5.0 MIN � � N CA Rd •.
/ 3 EELVAl10N � � � � � ,f ` reinforced turf matting or ripprap ��
i 7, `ry y1 BY OTHERS m avoid future problems wtfh / •
AT THE END OF THE FIRST YEAR AND AT THE END OF THE TWO WARRANTY PERIOD, ALL PLANTS THAT DO NOT ( 3 SF 1 " R 1 erosion. . E S S i 0
\ 0 STO M EVENT: 0.50E CFS 0.006 CFS / O F a 9
SURVIVE MUST BE REPLACED. h ) t' - � t / - ' \ / e forebay Sediment has accumulated to Search for the source of the ��� �y t•
MAIN POND / 1 ` 1-YEAR STORM EVENT: 3.507 CFS 94.73 CFS 0.704 CF5
ESTABLISHMENT PROCEDURES, SUCH AS CONTROL OF INVASIVE WEEDS, ANIMAL AND VANDAL DAMAGE, MULCHING, C ` AREA '� / \ \ \ ♦ 2-YEAR STORM EVENT: 11.24 CFS 140.37 CF5 3.489 CFS a depth greater than the sediment and remedy the _
\ e_ � or tool design depth for problem H possible. Remove the SEAL
s 7.0 � ` , C 10-YEAR STORM EVENT: 51.23 CFS 277.73 CFS 21.83 CFS sediment storage. sediment and dispose of it in a 05157E
RE-STAKING, WATERING, AND MESH ()FR TUBE PROTECTION REPLACEMENT, SHALL BE IMPLEMENTED TO THE EXTEND �- / ' I location where ft will not case
NEEDED TO ENSURE PLANT SURVIVAL STAKING MUST BE REMOVED AMR ESTABLISHMENT (APPROXIMATELY 12 > Q / \ ♦ ` ( 100-YEAR STORM EVENT: 145.9 CFS 520.17 CFS 117.06 CFS
MOPRHS), TO PREVENT GIRDLING (STRANGLING) OF ALL WOODY PLANTS. 24 OUTLET PIPE �' 1) ✓f r �, QP ' STORMWATER ) ` tan cis to streams or the BMP. '
Q, �' / ✓ `� Erosion as occu row e a I was erosxxl �)�'•.;UG�E..• -
...E
( REFER TO GRADING � � � � b T' � "'°• ��..��., �/ � �°' MANAGEMENT , \ protection such as renforced turf . q •• � .
SOD WITHIN BMP AND SURROUNDING AREAS TO BE BERMUDA OR CENTIPEDE GRASS. ` PLAN 1 � ' EASEMENT ♦ 12"
6.0 matting or riprap if needed to o E
revert future erosion problems, !. �•
GRASS OR WILDFLOWER SEED MUST BE APPLIED AT THE RATES SPECIFIED BY THE SUPPLIERS. IF PLANT '
_ ,/ Woods are presen emove a woods, preferably Y
( - INLET PIPE WITH �� hand. If ppeesticide Is used, wipe It
ESTABLISHMENT CANNOT BE ACHIEVER) WITH SEEDING BY THE TiME OF SUBSTANTIAL COMPLETION OF THE STORMWATER c � � \ 3'0 on the loots rather than
FACILITY PORTION OF THE PROJECT, THEN THE CONTRACTOR SHALL PLANT THE AREA WITH WILDFLDWRR SOD, PLUGS, \ I (`~ O�. I T 1 RIP-RAP APRON _ � lJ s ra n .
CONTAINER PLANTS, OR OTHER MEANS TO COMPLETE THE SPECIFIED PLANTING AND PROTECT AGAINST EROSION (` -r / - ✓ / ' \ Q�v- �� / ` e vegetateds e pro sdon ac Ices rune actor mg o e
BEFORE WATER IS ALLOWED TO ENTER THE STORMWATER BMP FACILITY. show t professional p Ices
�� ��
a that pruning is needed pro I racy
� �`�-� � � s d e � � -� ' �� �•d �v,a a ' � to maintain op al plant
ALL MATERIALS SHALL BE ACQUIRED FROM AN APPROVED NCDEO PLANT VENDOR. PLANT MATERIAL SHOULD BE FES d �' �� CLASS 2 RIP-RAP '' '� ' ;° vs a d, 4 REBAR 0 12' OC health.
PURCHASED FROM A LOCAL SOURCE TO ENSURE SURVIVABILITY. LOCAL VENDORS FOR THIS SiTE INCLUDE: ( ELEV=414.6 /'� COVERED WITH '`' 'rr " ° e IN Pants are dead, diseased or Determine the sane of the
- CILL II= NATIVE PLANT NURSERY 919-662-5566 ` ' ' OF EBARFTO 9 et ' Remedythh�oblem ands
- GROWING WILD NURSERY 910-259-6361 "a A 1
,R � ` / -P'� CLASS ARIP-RAP ,�%'' ��' '
/ e R do c. ep
- NC FOREST SERVICE 919-731-7988 CONCRETE 1 ` OVER FILTER FABRIC /��'� - ' �' HAVE 3' MIN. CONC. COVER replace plants. Provide a
a c FROM EDGE OR FACE OF COLLAR one-time fertilizer application to
- PLANT DELIGHTS NURSERY 919-772-4794 0` SEEPAGE COLLAR
- TARHEEL NATIVE TREES 919-553-5927 ` AT FOREBAY WEIR �' '' are passer
e
C � b ,d a , establish the ground cover if ar
y.
O _ , '' s e Roemovet E e twoods,es tt is recess
hand If lade Is Bused, w pe Zt
IMMEDIATELY AFTER THE WET DETENTION BASIN IS ESTABUSHED, THE PLANTS ON THE VEGETATED SHELF AND r OUTLET CONTROL ,,P '' \ /� \\ \ �' �' " ' '%/ J " '"a a on the plants rather than
PERIMETER OF THE BASIN SHOULD BE WATERED TWICE WEEKLY IF NEEDED UNTIL THE PLANTS BECOME ESTABLISHED ` ' 'J / . +'r " a' , NOTES s ra'n .
(COMMONLY SIX WEEKS) ,�,� STRUCTURE REFER arm C �, l \ <' �,' ' 1 a, d: a• I. ALL CONCRETE TO BE 3000 PSI NON-FLYfor fj f ♦_ r �� a p amain treatment area Sediment h t as nulaU'ted to sediment a daremed remedy the the PLAN STATUS
TO DETAILS ON "d d eP
NO PORTION OF THE WET DEIENI ON POND SHOULD BE FERTILIZED AFTER THE FIRST INITIAL FERTILIZATION THAT IS ✓ j -- ..
REQUIRED TO ESTABLISH THE PLANTS ON THE VEGETATED SHELF. THIS SHEET ,, �, \ FOREBAY AREA f% r~ > ,° '', ; ' ° e , , a 2 APPLY}' THICK WRAP OF ASPHALTIC ssttorage dth epth sediment edmentanddisposeeof it En a 22 INITIAL SUBMISSION
_ �,, " 4 a location where i will not case 02/27/23 2ND SUBMISSION
INV-415.0 GRASS > 24 HDPE BEYOND PLANNED SEEPAGECOLLAR ON impacts to streams or the BMP.
LANDSCAPING NOTES: t` SPILLWAY ''` ,' _ '` p d t3OTH sloEs. ga gro covers over Consult a pr�essona o remove
1. CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE CODES AND ORDINANCES REGARDING LANDSCAPING. ` STORMWATER �' �* INLET PIPE WITH ' > `� a 3 APPLY ADDITIONAL ASPHALTIC CEMENT AT of the area, and control the t I rowth.
2. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO ESTABLISH A HEALTHY STAND OF GRASS ON ALL SEEDED '' TOP OF - e n
�' v a a PIPE/SEEPAGE COLLIAR INTERFACE ON 9i s, rogm es or other emove a plants y wlpng
AREAS, ( MANAGEMENT /�' ,wr ,m. .,, RIP-RAP APRON '/� 1 � ° UPSTREAM FACES. invasive plants cover 50%of them with pesticide tdo 0
` EMBANKMENT _ J the basin surface spray)._
3. CONTRACTOR SHALL PROVIDE NATURAL TOPSOIL THAT IS FERTILE, FRIABLE, WITHOUT MIXTURE OF SUBSOIL EASEMENT / / `� ELEV=421.0 w '� t�• �' ° ' ' a < 4. TD BE FIELD INSPECTED BY GEOTECHNICAL
e'• ENGINEER. ASPHALTIC CEMENT TO MEET OR a embankmentru a have s a e o grow Remove shrubsImmediately. DATE DESCRIPTION
MATERIALS, AND OBTAINED FROM A WELL DRAINED, AVAILABLE SITE. IT SHALL NOT CONTAIN SUBSTANCES ` / / LITORAL SHELF ) ' : d . ' aan the embankment
a EXCEED FEDERAL SPECIFICATION SS-153
WHICH MAY BE HARMFUL TO PLANT GROWTH. TOPSOIL SHALL BE SCREENED AND FREE FROM CLAY, LUMPS s / f f /' C ,%` `" / STORM DRAINAGE j m c A' Evidence a anus a or saver Use raps o remove muskrats
STONES, ROOTS, PLANTS, OR SIMILAR SUBSTANCES 1' OR MORE IN DIAMETER, DEBRIS, OR OTHER OBJECTS •, / _ AREA=6,255 SF a TYPE 1: ASTM-D-2822-75 TYPE 1. activity is present, and consult a professional to CB CB CEP
WHICH MIGHT BE A HINDERANCE TO, PLANTING OPERATIONS TOPSOIL SHALL CONTAIN AT LEAST 4-6R ORGANIC �. �°" / -` ' / ' BY OTHERS '� o beavers.
REFER TO DETAIL -.. aDESIGN DRAWN CHKD
MATTER BY WEIGHT AND HAVE A PH RANGE OF 5.5 TO 7.0. ( /, r 7i > r4 a' n A. Q `d d' A tree has started to grow on Consult dam safety specialist -
4. CONTRACTOR SHALL BE RESPONSIBLE FOR THE WATERING AND THE MAINTENANCE OF ALL LANDSCAPED AREAS ♦ / f FOR PLANTINGS a, he embankment. to remove the tree.
•-- --.� ,,r f OJ ` � " An annual innspe�cibn by an Make all needed repays. H: 1„ - 80'
UNTIL THE LATER OF, (a) THIRTY (30) DAYS FOLLOWING THE PLANTING OF THE GRASS AND SHRUBS, OR (b) -' S \ r \ ey,,° O �� `,, 1 �p pp pprr I w
THE DATE THAT STORE OPENS FOR BUSINESS TO THE PUBLIC. CONTRACTOR SHALL ALSO BE RESPONSIBILITY r' '� / ' 1 �' 'a A a that theo embmkmentaneeds s
FOR THE SURVIVAL OF THE BMP PLANTING MATERIALS DURING THE TWO-YEAR WARRANTY PERIOD AND SHALL SCALE V:
REPLACE ALL PLANTS THAT DO NOT SURVIVE AT THE END OF THE FIRST YEAR AND AT THE END OF THE GRAPHIC SCALE ' d 6 °' repair. ff applicable)
e outlet device dogging has occurred. can out a outlet ce. 0B N0. 220151-01-001
SECOND YEAR OF THE WARRANTY PERIOD.
5. CONTRACTOR TO VERIFY QUANTITIES PRIOR TO COMMENCING WORK. Dispose of the sediment off-site.
FOR HCOMMEN PLANTING OR MULCH SHALL BE SEEDED LAWN. so a 40 80 ISO 320 CONCRETE SEEPAGE COLLAR The outlet device is damaged evice or replace e a DATE$EPTEMBER 29, 2022
6. ANY DISTURBED AREAS NOT SCHEDULED E S,
REFER TD STE PLAN FOR LOCATiON OF AREAS TO BE SODDED. ( device.
7. NO PLANT SUBSTITUTIONS ARE PERMITTED WITHOUT WRITTEN APPROVAL OF THE OWNERS REPRESENTATIVE. ` PLAN VIEW ` receiving water Erasion or other signs of Contact the local NC Division of
7. FOR LAN PLANTING AREAS, REMOVE ALL PAVEMENT, GRAVEL SUB-BASE AND CONSTRUCTION DEBRIS; REMOVE ) �� N.T.S.NTSdamage have occurred at the Water Quality Oversight
Unit
Office, or FILE No.
outlet. the 401 Oversight Unit at
COMPACTED SOIL AND ADD 18" NEW TOPSOIL, OR TILL AND AMEND THE TOP 18" OF EXISTING SOIL TO MEET C 919-733-1786.
TOPSOIL/PLANTING MIX STANDARDS FOR TREES. ( IN FEET ) STORMWATER MANAGEMENT SYSTEM DETAILS n A
9. ADJUST TREE PLANTING LOCATIONS TO AVOID UNDERGROUND UTILITIES. PLANT 15 FROM ALL UNDERGROUND 1 inch = 80 ft. > 1 NOT TO SCALE SHEET S C M-3
UTILITIES (SEWER AND STORM DRAINAGE, GAS, WATER, PHONE, AND ELECTRICAL LINES.)
Cad file name:P;\048-DoubleD 027-Ashley Heights-missing permit 220151) ngineering Engineering Plans Construction P►ans\048-027-SWD.dwg