SW6130202_Grading/Drainage Plan_20130212

I I I. I • 198.5 '' 198. 1979 1 1 \ ` T- NV=1Bib1 /wit _ .__ --- - - --- --- 193.,-I-,92A \ 1 / ( NOTE: Z W p z w UJ N
I 1 -ZONED R-12 + ' w ►- x w
I g \ \ _ _ _ /F,e4A ++•9 \ \ 1 / \ CONTRACTOR TO SAVE SUFFICIENT TOPSOIL ON SITE TO BE W. O ¢ W w co m
4 191 a - RESIDENTIAL +�•g ' i a9 1 \ \ / - / RE -SPREAD AFTER GRADING IS COMPLETE. HAUL OFF ANY �'� U m °- t_ O O 0
rJUN JUNCTION Box ( I \ �� 194.a +19a9 1 \ \ 1�g to O O >- F- w
/ I ��� _ 1 ,9.7 + £� \ \ / . / - - \ \ EXCESS TOP SOIL. m co V � z co x
0 m m x ¢ -
TOP ELEV t9825 1 i SEESHEET t SS FOR DETAILS I 1 \ \ 2a• RCP ,9ss��� - +1952 \ PES 195 _ ' / \ / 11 ��� ,gsa / Z LL Q ~ O Q Z m Qa
-- -�- 195A - - - Z
i � T 195.7 IT PV _ / 1 > - - - - _ ' _ ��� _ _- _(_ 1 LEGEND 3 0 0 z o o
LIG ..y �. 1 1 ° . '� �112"HDPE --. , 1 / / - _ - - �--1�•0- (1/-
NV=194.,0 W 0 qq
- \ f9g - L =- / ■so 1■■•"■ ■ •"■■■■D �� Jl tsHOPE \ 4iAP� 195 - _ J 195' 19a -193' ' ' -- - - _ 190E-- = = - - - 1192 - - f \ 1 �1\Ill EXIST. CONTOUR i "/ y LU W z W Z
Nv ,ez:75 198 - 194_ - - = 1 am-- _ _ 1 \ 1 X ,$ I I I i F a1s.e = O z O w
ZTFES IMKP ' - -- `' \ I I EXIST. SPOT ELEV m Z Q � m Lr
INv=19592 1ea8 $ 99.e �r \ `,yp� -J 1999 1 i 1 ep�� G�F4-�r�_ 4L ,9z.i ' \ \ - 1 \ 1'.. �% III +1955 a w CIL _- a15
,93.3 - -\. 190.7 I PROP. CONTOUR 4F uw✓ H cc
WA i I // `, I j ,94. �� `� f t95 I \ 74r• \ \ \ t9o9 + I w m
r/ 1 - _---/E`
VENUE■p s,1 R S L F CUR U 4
PINEWOOD A s� 1 � \ '`qy, t - t � � I \ \ ++ez•s �c _ 1 I 'I � I I POP. POT E EV. (BOTTOM O B OR GROUND) �3021 � N m n o
■". 1 497 / �n-� 93.7 1 -
W PUBLIC RIGHT OF WAY ■ J _ I / \ 196 \ 1 ,gas - . SPOT E P OF CURB) .14
\ +1 \ \
PER SLIDE 173 PLAT W ■. - \ %.P I ��. BW:199.00 7 +1955 \ \ - • 5
\ \ \ 1 9t \ \ I I I I PROP ELEV. (TO RB �-302 O a � � n
1987._°•'-I \ 1 M M m ...� 197 ,, a9a \ A \ -I I 1 1 - PROP. JUNCTION BOX - > > N
_ -- i�` 1 I �...-= - ° � �I t9 '� t99 _ `z:,�.. • t� �, \ \\ � Ix"„ 1 jj1 I1 C.� Z m Z v,
�___a»- ,99A ■ i FE i 11'/ 1 �a m.5-"Re Re / � 20t f.. 201 \\ Rs� \\\ \\ \\ I llm \\ !\\\I11r \\ PROP. CATCH BASIN Z Q W ti
• \\\ PROP. FES v
24•gAP .\...\ 118� I BWa98.1t. M. J - \ .1 \ -.. \ +192.7 \\ 1919 1 \\ `� \\\ \ m. m �
INV-t93.82 \ 1 BIN'.197.82 I 1 7 1 I • \ +193s \ \ ,ep 1 It \ O ...
I ` 11 1 I \ t99a 19Bs \ I I BW:198.1t 5 1 lass \ 1% rn PL J
I I 1 I I +195.3 \ \ / ly `�'\ 1 \ \I \ ` PROP. DRAINAGE SWALE m
WL -WL--. - -19! �,� �.. y. 2 7 \ 196A \ \... \. / IP , \\ Q Q
_ 1 I I I I 1 '�- - i - �� .. . ` ,97s \ .9 \ \ \ \ I_ I l \ I 1 1 \ PROP. DIVERSION DITCH DN> >' m
I L1 111 ■ �J /: +1e7 19Z7 \ \ \ \\ \/ x I �I I 1 11` m M U
0 I \ 1 i 1� - + f9 •1 \ ROOF DRAINAGE \� ' - \ 1 1 / l .`I I 1 l ` PROP. SILT FENCE SF LU M
1 1 1 ■ i I ge B - I CONNECT DRAINS TO STORM LINE \ ,92a 1 / / \ \ \ \ i ♦ n.
I II I tee. • _ • 1 ' • _ \. \ + 1 / \\ \\ PROP. INLET PROTECTION 1 O
I I III ,gas ,992 : • ' , - CO-2 TO CO-1 +1933 \
I g I � /C : , : - \ \ I (SEE DETAIL ON SHEET C� +19as \ 1 /
1 I I 1 1 0w20o z5: PROP. LIMITS OF CONSTRUCTION ® LOC
111'I I IIJI 199.7./ li 1-88---. •T.-_i'�e--� ,. i `�� : • -... \ 188.0 1\+189.8 I19g.0 \ \\ \\ _ (\ \ ;\\.' oAC
\ PROP. COIR MESH BAFFLES IN SED. TRAP �� BAF
1 I o01 ; 200A3 . t + \ \ \
-197 _ +197A , +, CFE 2\01 701 z - ��
ts7d p. / i 1 I \ \ ,927 m , o
1 11 I I R $ I ,872 \ \_L. \ +192.7 I O Z \ 4• ALUMINUM SQUARE DOWNSPOUTS WITH 12• X 24• CONCRETE SPLASH PADS Z "
L ItII TOP:197.75 / .70• 1 I p 1 • \ +194.9 h� o \ � _ 0 In \ ® (CONTRACTOR TO ENSURE POSITIVE DRAINAGE FROM SPLASH PAD TO PERIMETER Z � m
INv 1 1 ' \ \ s`� 200.92 201.20 I 1 +,e5s +1952 \ \ \ \ / / �$ C) \ DITCH). - w W c
197.0
-094-0 B312 fA - w
IRISH BRATCHER PICKETT I I 1 j I I \ +1 s +19es y 1 I ® BoRE II II ,:' �\ \ 2 �< rn \t O Z V WZz
DB 356 PG 842 11 I/ j 1 M W \ / I \ \ +194. 19M O C _ 0 Z g V C a
SLIDE 366 PLAT 1 1 1 I I 2002 DI II 1 ®� 3 / •f" (BEGIN3%SLOPED I \ ,95A + , � �°w\' GENERAL GRADING NOTES =Z� wL, $ g 1
\ 7855 \ 1 1, J o '-
•,• SIDEWALK E7�08ED \ \ + \ r ) QZ
LOT #9 WW III rl o GRATE:198 00 / : • FOUNDEN \ \ \ }Wass W� \ m \ in 1. LAND DEVELOPMENT/EROSION CONTROL INSPECTOR TO BE GI1/EN 24 HOURS NOTICE m W Q V J
ZONED R-12 III I ( k I 1 ,, g +19e.4\ +,97 \ \ - - - - - - - - \ \ \ �j i0 PRIOR To START of coNsrRucnoN. €
VACANT I I I 1 \ \ / 6 +, +t �s \ \ \ (0-01NE!A97.81
. '"' '- -.� \' j f9q ! r \ \ 2. THE CONTRACTOR SHALL MAINTAIN EACH STREAM, CREEK OR BACKWASH CHANNEL IN Q LL
I I \ 8`PVC - - 1 -� \ AN UNOBSTRUCTED STATE AND SHALL REMOVE FROM THE CHANNEL AND BANKS OF THE 98s / .\ - - I-1s3.5 \ STREAM ALL DEBRIS, LOGS, TIMBER, JUNK AND OTHER ACCUMULATIONS. m ^
/,,n R \ 1942+1 �\ F
I 1 \ i� `p - - \ + +196R \ \ 1 \ 3. PE SEALED SHOP DRAWINGS FOR RETAINING WALL(S) MUST BE SUBMITTED TO CITY 2 -
1 1 J I ' i 200.5 _ 2oo a \ / / • d • \ - ., •. : • ` 19r _ - _ - - - +196.9 - - - _ - ,9es _ - _ \ \ \ \ \ ENGINEER PRIOR 7o CONSTRUCTION. 0
:'• _ ,97A.
i I I I I a 7 ! .. • .. .' : \ a +1973 \ 1 \ 4. APPROVAL OF THIS SITE PLANTS NOT AN AUTHORIZATION TO GRADE ADJACENT ,n
1 1 I I W O I` / PERMISSION MU
3� + i ..� ,e9.�•. t9g.a7 ' . 1. \ \ IRS Ix \ PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFFSITE GRADING PERMI MUST
\ +�-•� 197 \ \ \ III \ ,\ BE OBTAINED FROM THE AFFECTED PROPERTY OWNERS. Seal ♦, , Is
,.
16T OF 8" PVC 0 50% +.
of_ ` �1 +1 9
I al0 '
1 / +1g°2 o o 198 - 1 7ig4,3 S. NONSTANDARD ITEMS (e.: PAVERS, IRRIGATION SYSTEMS. ETC.) IN THE RIGHT-OF-WAY • N C%(l �O
3 I t / \ 200,g2 \ 1 \ 18e•7+ 1 \ \ REQUIRE A RIGHT-OF-WAY ENCROACHMENT AGREEMENT WITH THE NCDOT BEFORE ♦ Q��••••••••• %
198 - - - \ t96 �1 \ \ INSTALLATION. :♦20FOF�ss/O1 �.�, �%
xpo t' zoo 1 q _ - - ..hh Q' 'y =y �.
1 1 yI 1 A v II - ` / / / E-7 200.92 + ., t9a1 \ \ 7 \ ( \ \ 6. LANDINGS OUTSIDE ALL DOORS SHALL BE SIZED PER THE NORTH CAROLINA BUILDING : a SEAL r =
199 I _ +198.3 S� � CODE (NCSC), BE AT THE SAME ELEVATION AS THE FINISHED FLOOR ELEVATION AND � 2 12557
200.19 200.38---ieea s�\1485'� 1 \ HAVE A MAXIMUM 2% SLOPE IN ANY DIRECTION INCLUDING DIAGONAL .(�'s �y t�•
' / 1V� $ �' - '--• '---sb`- 200.3 -- 20oa -� '7 - \ \. I \ \ •:�'A •'+. (N�:`.•�'�♦.' .1
/ I \-ss----�`"- + f \ 7. THE SLOPES IN THE HANDICAP PARKING SPACES / ACCESS AISLE AREAS SHALL NOT �i f ••«•••♦♦ �O� �7
/ \ -- 6g_--fig- -�ZI0.3 \
O L.�y 2 .56 - \\ \ �\+t949 EXCEED 2%INANY DIRECTION INCLUDING IN.THE DWGONAL aat T. e4a♦GI
I � YYYN... 11-I-t99,a FE I r I \ s5.9+ b..n..•
_ _ / - . __ ._ -f- - 197`3 - \ 8. THERE SHALL BE LEVEL TURNING AREAS (MAX. 2% SLOPE IN ANY DIRECTION INCLUDING
\$ ' 9 Pvc � \ 200.15 � ]11Y�9itit3_/// - \
l i I p I 4 2°, I \ ( - i- \- ,199.0 +1 \ \ 1 IN THE DIAGONAL) ON ALL SIDEWALKS WHERE AN INTERSECTING SIDEWALK CONNECTS
I / I 20,A I I ® „p \ \ \ +1ee.t \ \ WITH IT.
I I / F• I BORE-t \ \ I
+199 a `�i + - / \ \ \ 1 1 I 9. THERE SHALL BE NO DESIGNATED PEDESTRIAN ROUTES / SIDEWALKS WITHIN THE SITE,
+ \+tg°9 ry�� \ \ \ 1 f EXCEPT WHERE LABELED AS A RAMP WITH RAILS, WHICH EXCEED A 5% SLOPE IN THE
+-{-2°°.7 +200.3 - _ t 61 \ \ 1 \ \. 19 DIRECTION OF TRAVEL AND A 2% CROSS -SLOPE. -
/ f .
7 �+, 209b , ► - \�\ +108.8 97.9 +,975\ \\ +\ IMPERVIOUS AREA CALCS.
1 3 / 202. \ 19 I \ \ I RE-9 +199.8 -
tots / \ � \ \ I �-1ees +,s9.e � \ BUILDING = 8,320 S.F. F0,N-SITEPERVIOUS = 29,075 S.F. Q199.9 90'e\\\ \ SIDEWALKS/GONG, =1,149S.F. =49,488-SF
200 + 199 1 'J\ \ \ \ PAVED AREAS = 19,606 S.F. PERVIOUS = 68.8% 1 e UJ Z Z
2°tg $ \ %L
2oo.a \ 200s / ✓ - - - -- - - - �- hb \ \ \ 98 ' 1 CABLE Ift - \ TOTAL = 29 075 S.F.S, Z O Q
LLI a
202.5 20 \\ --- .20D / - I 2000. __ +199.8 _. +1 C \ \ \ - \ \ - -
/ --� -
// Ir /----*•----*4-- \ 2DII- \.. /-� _ .200 �. - --I _..�� `� - 199�-\ _ - _ v (U =- (J� rUj
- - - - _
FES 2 r ROP / / / / / / 202.31 l9' 7 \ - \ -- - - _ - +200.8 _ - -- -- - - - - - _ _ - -�-c=- - - _ - - -. - - - - 200.8 200.3 199.7 t� ` O Z _
INV=19720 _ -_
/ / i U - - -. +20,9 \ _ - 201.9 20t.5 ro------fO�._-Po-\ Q
STOp BAR ' \ / / _ - \- - -
- ---------------/------ 2ozo w_._._.
- - w- - -- \ v, d 13 Q z
2025 2029 202.3 2022 t' •- N ES
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202.9
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■ MANHOLE-._.._ro--'- I I �(13 ` 2022 201.9
203.1 203.0 - 202.9 y --- �.
am o 1 �S i - , ,._ 203.3 - - 2032 - - _.- - - ' 20ta 201.4/-' WL-- -m -. W` _.
■ m --�r203A 1 203.3 / / - 202A _Vyl WL--�L- - - / ✓
S 203.6 _ _ - - �-5 20U � _ WL _-wry---WL- _--_ / / -- g
202.7-vr<__-WL- --WL e \ _ / / �//>w■R���eorio#t�
I y,3 2027
■ 202.9 _ _-WL -_WL - - - f `� -mow_ SC---�'_- - +-• d
■ AI _�- _- - WLI_-- 293A ,:� r_n -^,• _�S____ea_-�•C`---�- --- _� 15'RCP U)
_WL --- 1
_-_-w� ---WL 1 \ a- \• �; iNV=197.39
VVL--- ---WL i .�.-r-•.R,. -:, "" \ - _ - -, _ - UTILITY POU -
-----wL---------------� CTB
H TELEPHC
\■ $ I STOP we I .'s,.•xs9.. _ __�---- ` r •. M1;. WnPEDESTAL
- / 24' RCP �. I - -..��- , . � � . I a«----•� 5L✓6 / 30Zo Engineer -
INV•19923 \ I I >s �• ,�- x i i v-rrT'� i i v UTILITY POLE WITH. :. ..-_._-amr.-:---axr-- _ _ 2 z /z C3
FES i5' TELEPHONE __ _==ar-==_°" •_�•_ UB
INV=199.54\ / _-__is--_-T8---�--�. -1 --•' I PEDESTAL .---°Zw-=" _ vC
4' l / _ _�» «• - z�/>�� Drawn By
2/7/13
STORM DRAINAGE CHART Date
PROJECT: E. PROSPECT - FDS DATE: 2-7-13 Revisions
LOCATION: 1213 E. PROSPECT AVE. - RAEFORD, NORTH CAROLINA REVISED: DRAWING INFORMATION 1-2=13ADD®BNffITOPLM
STORM FREQUENCY (ON -SITE): 10 YR. - C=SEE CHART i=7.97 (10 yr.) JOB NO: 487-036 2-211en3REVI8t�PERNCAB,R COMMENTS
*' ALL PIPE SHALL BE CL III RCP UNLESS NOTED OTHERWISE. COMPUTED BY. LJB TRUE PLAN
CHECKED BYi CTB NORTH NORTH
LINE DRAINAGE AREA (ACRES) Q(CFS) PIPE DATA INVERT ELEVATIONS VELOC. INLET/RIM ELEVATION
TOTAL PIPE SIZEFROM TOOFFSITEONSIT TOTAL C VAL. 10 yr. W VALUE PERCENT LENGTH - NCH S UPSTREAM DOWNSTREAM FPS (FULL) FT. REMARKS
toYR 1ao
DI 1 FES-1 - - - - - - WA 4.9 0.012 _ 0.50 129 12 193.50 192.86 1 DIA = 197.00 PVC
RS-1 FES-2 - - - - - - N/A 4.9 0.012 0.50 65 12 196.83 196.50 RS-1 =197.00 PVC North +One-WCenlir
CO 2 CO 1 0.012 0.50 106 8 198.35 197.81 PVC �b E Call Off Before You Dig E
RIP -RAP CHART CO 1 FES-3 1 0.012 0.50 162 8 197.81 197.00 PVC
DIA OF OUTLET (L) APRON
STRUCTURE Q-FLOW d50 APRON APRON STONE PIOjBCt Number
- NO. (CFS) PIPE VEL. (IN.) (FPS) (IN) LEN. WID. (IN.) THICK CLASS GRAPHIC SCALE
487-036
FES-1 - 12 - 3 12 15 9 A
FIE 12 3 12.. 15 9 A C5ol
FES-3 - 8 - 2 8 10 9 A (0 III >�)
i Inch = � tt Sheet 5 of 13

SAND FILTER
71
BEl�nnuDAGRASS SOD
ENLARGED DETAILS
��
Cr��
SCALE: 1" = 10'
OS B 18" CMP RISER
larm HOLES @ 4-1/4" ac
SOD ON TOP OF SLOPES TTD
FILTER
TOP ELEV - 197.75
4 ROWS G 3-1/3" ac
TOP
INV=186.83
S
RIP RAP AROUND RISER -
CL OU
FES - 2
DI -1
(TYPICAL AT ALL BENDS, INV = 196.50
RIM=198.00
1T ABOVE GROUND)
5
- -
20 ---
—
——
----
—200
NEW DRIVEWAY
-MAY
— — —
—
199
SAND FILTER
J +
—
MR
—
3
199
1L
198 — — — — — —
3
_
- -
— — — Y STORM STAGE
3—
--- ---
-------
1.4' STORAGE
----
198
WO PONDING ELEV=187.42
1Y CMP BARREL @ 0.50%
—' —
— 197
18" :i:.
196
>i.l4i•rrr' '>> 7f:4Y .< .,nuk i 'i`r;�i+'f't. `i* ' •`\`O. ram•.•. tii^
�r +,ate ,
188
Zi�dAF`€�pON}iYS�176
4fZw. Y:t Vi!•.l'��Si��'�...—.L.}w�.!•: !}e.44`,R'{!Y .I MI.Y�F•;i.
•.
-
/WTM C33 ...>
+Y s..�Y.i.+.l�',Y
195
FILTER FABRIC
0.5% SLOPE
TYPICAL SECTION
ASHED #57 NE
WAROUND RISER
SAND FILTER W/ FOREBAY
S.H.W.T. = 193.00+/
FILTER FABRIC
AROUND UNDERDRAIN
GRAVELBED
SAND FILTER SECTION
ET _ or ON BLOCK
2"
(1WO
12DEEEP)EP)
'B-B'
PERFORATED 4" DIA.
(NOT TO SCALE)
UNDERDRAIN PIPE (SCHEDULE
40 PVC OR SLOTTED'HDPE)
8" MIN UNDERDRAIN
Ye' PERFORATIONS @ 6" O/C
GRAVEL BED (#57
MIN. OF 4 HOLESIROW
WASHED STONE)
SEDIMENT BASIN CONVERSION NOTES:
Z O cc:
Z ul 0 Z= LU W
ALL AREAS ABOVE THE PERMANENT POOL SHALL BE PREPARED & SEEDED TO PERMANENT
GROUND COVER SPECFICATIONS.
- W
= O Q W W N H OD
I— D U F- O O W
THE PERMANENT DRY POND SHALL NOT BE CONSTRUCTED UNTIL THE CONTRIBUTING DRAINAGE
IS STABILIZED. ANY SEDIMENT THAT ACCUMULATES WITHIN THE POND SHALL BE REMOVED AND
CO 0 0
_ m W U. 1-: Z () CC
THE FINAL GRADE REESTABLISHED TO THE PROPOSED CONTOURS SHOWN. - '
O) cc 2 Q Z
ZLLQ~0-¢z00
0
THE PROPOSED STORMWATER MANAGEMENT PONDS ARE TO BE CONVERTED FROM SEDIMENT
0Z ❑ 0- O Q
AND EROSION CONTROL BASINS. THIS CONVERSION SHOULD BE COMPLETED AFTER THE ENTIRE
IS FOR AUTHORITY.
Q F- Z W Z ❑
Ei U ❑
DRAIN AREA STABILIZED AND APPROVAL GIVEN THE LOCAL & STATE
CCR — -. W CU
THE CONVERSION TO A PERMANENT STORMWATER BMP SHALL BE ACCOMPLISHED BY INSTALLING
(A IL W Z ❑ 0 M --p Z
O O- W O I r
THE PERM. OUTLET STRUCTURE AND REGRADING THE BASIN CONTOURS TO THOSE SHOWN ON
THE PLAN. -
= Z Q -W
('3 d m IL H
1— O
Z L
ANY SEDIMENT LADEN WATER WITHIN THE SEDIMENT BASIN SHALL BE DRAIN DOWN BY USE OF
W=O
W cr it
-
PUMPS AND DISCHARGES THROUGH A'BLADDER TYPE SYSTEM OR DISPOSED OF OFFSITE IN AN
APPROVED SYSTEM.
ALL SEDIMENT REMOVED SHALL BE PLACED IN A DESIGNATED SPOIL PILE AND ADEQUATELY
- LLJ
_ W 00 -
PROTECTED WITH EROSION CONTROL MEASURES AND PERMANENTLY STABILIZED WITH
- 00 f
PERMANENT SEEDING.. -
> — C4
0
C� z co
❑ -Q
m
SAND FILTER DESIGN SUMMARY
_ IZ)O a;
Of
DRAINAGE AREA: 1.03 AC TOTAL
Q W
W.Q. PONDING: 1.6 MAX
in
0}D Lj LO U
SAND DEPTH: 1.5'
0. cn
OO
TIME TO DRAIN: 32 HOURS
WATER QUALITY VOL. 2,627-CF
W
SEDIMENT CHAMBER: 2,300 SF (ELEV 198)
SAND FILTER MEDIA 378 SF (ELEV 196.50)
��
Z m
.+�+ Lu N
00
Ii I— 2
RIP -RAP
CHART
Z W Q ¢ iz
STRUCTURE
0-FLOW
DIA. OF
PIPE
OUTLET
VEL.
d50
(L)
APRON
(W)
APRON
APRON
THICK
STONE
_
0 W EU w w n
Z z z -�LO
NO.
(CFS)
(IN.)
(FPS)
(IN)
LEN.
WID.
(IN.)
CLASS
~ .0 z g $ m
� D CL
(FT.)
(FT.)
LU
FES-1
-
12
-
3
12
15
9
A
= Z j Z LL
mWQ Og �:
FES-2
-
12
-
3
12
15
9
A
9
i
FES-3
-
8
-
2
8
1 10
9
A
LL
m^
�C
LL
NOTE:
ALL SLOPES DRAINING TO SAND FILTER AREAS SHALL BE Seal �' "•'•.,
STABILIZED PER THE NORTH CAROLINA STATE EROSION CONTROL �N CA/?O� ••p
,......
SEDIMENT CONTROL PLANNING & DESIGN MANUAL BEFORE MEDIA O pQ .rFgSSio",�y•
IS PLACED. ? 2 fro M7
S4 SEAL r i
DRAINAGE AREA MUST BE STABILIZED BEFORE FILTRATION 12557
CONTROLS & FILTER MEDIA ARE INSTALLED. ANY SILT THAT ENTERS 00
D E FACILITY
OF OFFS TE. REMOVED BY THE CONTRACTOR AND •.��Q., y.� ',.•+_,E�,�. Oh�j
6130zoZ
SAND FILTER OPERATION & MAINTENANCE PLAN (n
SAND FILTER MAINTENANCE IS THE RESPONSIBILITY OF AMERICAN ASSET CORP. AND/OR ITS DESIGNATED PROPERTY - LU Z 7
MANAGEMENT ASSOCIATION. L
IMPORTANT MAINTENANCE PROCEDURES: / Z
LU > Ir Z J_
THE DRAINAGE AREA WILL BE CAREFULLY MANAGED TO REDUCE. SEDIMENT LOAD TO THE SAND FILTER. � Q V 1..^L
THE SEDIMENTATION CHAMBER OR FOREBAY WILL BE CLEANED OUT WHENEVER SEDIMENT DEPTH EXCEEDS SIX - U V = INCHES - V
Lu
ONCE A YEAR, SAND MEDIA WILL BE SKIMMED. W W ' R
THE SAND FILTER MEDIA WILL BE REPLACED WHENEVER IT FAILS TO FUNCTION PROPERLY AFTER MAINTENANCE. a � v
- THE SAND FILTER WILL BE INSPECTED QUARTERLY AND WITHIN 24 HOURS AFTER EVERY STORM EVENT GREATER THAN Q Z Q Q
1.0 INCHES. RECORDS OF OPERATION AND MAINTENANCE WILL BE KEPT IN A KNOWN SET LOCATION AND WILL BE
AVAILABLE UPON REQUEST. U +. a Cl `.
cc
INSPECTION ACTIVITIES SHALL BE PERFORMED AS FOLLOWS: ANY PROBLEMS THAT ARE FOUND SHALL BE REPAIRED O W O cc Q
IMMEDIATLEY. rr M W rr
BMP ELEMENT: -
- POTENTIAL PROBLEM:
HOW 1 WILL REMEDIATE THE PROBLEM:
ENTIRE BMP
TRASH DEBRIS PRESENT
REMOVE THE TRASHIDEBRIS
ADJACENT PAVEMENT - -
OF APPLICABLE)
SEDIMENT 18 PRESENT ON THE
PAVEMENT SURFACE
REGRADE THE SOIL IF NECESSARY TO
REMOVE THE GULLY, AND THEN PLANT A
GROUND COVER AND WATER UNTIL IT IS
ESTABLISHED. PROVIDE LIME AND A
ONE-TIME FERTILIZER APPLICATION.
- --
VEGETATION IS TOO SHORT OR TOO
MAINTAIN VEGETATION AT AN
-
LONG. .-
APPROPRIATE HEIGHT.
FLOW DIVERSION STRUCTURE
THE STRUCTURE IS CLOGGED.
UNCLOG THE CONVEYANCE AND
-
-
DISPOSE OF ANY SEDIMENT OFFSITE.
THE STRUCTURE IS DAMAGED.
MAKE ANY NECESSARY REPAIRS OR
REPLACE IF DAMAGE IS TOO LARGE FOR
REPAIR.
FOREBAY OR PRETREATMENT
SEDIMENT HAS ACCUMULATED TO A
SEARCH FOR THE SOURCE OF THE
AREA
DEPTH OF GREATER THAN SIX
SEDIMENT AND REMEDY THE PROBLEM IF
INCHES.
POSSIBLE. REMOVE THE SEDIMENT AND
STABILIZE OR DISPOSE OF IT IN A
LOCATION WHERE IT WILL NOT CAUSE
IMPACTS TO STREAMS OR THE BMP.
EROSION HAS OCCURRED.
PROVIDE ADDITIONAL EROSION
-
PROTECTION SUCH AS REINFORCED
TURF MATTING OR RIPRAP IF NEEDED
TO PREVENT FUTURE EROSION
- PROBLEMS.
WEEDS ARE PRESENT.
REMOVE THE WEFTS, PREFERABLY BY
HAND. IF A PESTICIDE IS USED, WIPE IT
-
ON PLANTS RATHER THAN SPRAYING.
FILTER BED AND UNDERDRAIN
WATER 18 PONDING ON THE SURFACE
CHECK TO SEE IF THE COLLECTOR
COLLECTION SYSTEM
FOR MORE THAN 24 HOURS AFTER A
SYSTEM IS CLOGGED AND FLUSH IF
STORM.
NECESSARY. IF WATER STILL PONDS,..
-
REMOVE THE TOP FEW INCHES OF
FILTER BED MEDIA AND REPLACE. IF
WATER STILL PONDS, THEN CONSULT AN
EXPERT..
OUTLET DEVICE
- CLOGGING HAS OCCURRED.
CLEAN OUT THE OUTLET DEVICE
DISPOSE OF THE SEDIMENT OFFSITE.
THE OUTLET DEVICE IS DAMAGED.
REPAIR OR REPLACE THE OUTLET
DEVICE
RECEIVING WATER
EROSION OF OTHER SIGNS OF
CONTACT THE NC DIVISION OF WATER
DAMAGE HAVE OCCURRED AT THE
QUALITY 401 OVERSIGHT UNIT AT
OUTLET.
919.733-1786.
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Drawn By
217/13
Date
Revisions-
F'RJ)eCL NUBIDer _..
487-036
C5v2
Sheet 6 of 13

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