SW7960401_APPROVED PLANS_20070306

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW Jq� (L/4D /
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
G
YYYYM M DD

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SUMMARY CALCULATIONS
FOR BMP's
DRAINAGE AREA A 23,326.4 sq ft. (0.54 arras)
DRAINAGE AREA B = 74,586 sq. ft. (1.71 acres)
IMPERVIOUS AREA 19,561.4 sq, ft. (0.45 acres)
IMPERVIOUS AREA 45,170 sq. ft. (1.04 acres)
83.919 COVERAGE
60.6% COVERAGE
DRAINAGE BASIN A
DRAINAGE BASIN B = ��
4.3' CONTOUR - 2,8486 S.F.
3.1' CONTOUR - 7,271.9 SF,
2.8' CONTOUR — 1,599.3 S.F.
4.1' CONTOUR = 10,403.2 S.F.
1.699.3 S.F, (1.5') � 2.399 C.F.
7,271.9 S.F. (1.0') = 7,272 C F \
(Z848.6 S.F.- 1,599.3 S.F.) (075') - 937 C.F.
(10,403.2 S.F.- 7.271.9 S.F.) (0.5') - 1,566 C.F.
TOTAL VOLUME PROVIDED m 3,336 C.F.
TOTAL VOLUME PROVIDED = 8,838 C.F. \
DESIGN VOLUME: 23,326.4 S.F. (1-/12)(0.81 INANCH)- 1575 C.F.
DESIGN VOLUME: 74.586.1 S.F. (1'/12)(0.60 IN/INCH)= 3,729 C.F.
\
EQUIVALENT RAINFALL EVENT: 3.336 C.F./1,575 G.F.= 2.12 INCHES
EQUIVALENT RAINFALL EVENT: 8,838 C.F./_1,729 C.F.= 2.37 INCHES
BASIN BOTTOM ELEVATION = 2.8'
BASIN BOTTOM ELEVATION = 3.1'
BASIN OVERFLOW ELEVATION = 4.3'
BASIN OVERFLOW ELEVATION 4.1' rs94pNEK;;. ., DRF
7
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NORTH CAROLINA ENVIRONMENTAL
COMMISSION
a` DIMVISMGEMEION WA1ER QUALITY
<, DB��(a�-chi 6 , � 0 7
1 1% \\ \\\ StamwaterPo *No-,
• \ \ � 4, — _ _ — .— — _ _ - TOP OF BANK
• \ \ \ `f j / /\ — — —.. — - TOE OF SLOPE
Nt • S,`. 33 \ 7'D 13� / / / 41• ---- NC ----- - CONCRETE W/ GRADE CHANGE /
DRA64AGE BASIN MIER91ED BOUNDARY
'3 �/ \\ _ •. �`7— �..,y s.r" . /' / SPOT LE eTsONS BYCLcwMB1Is AMKEYM
PRIOR TO• \ \\ ��, / `r �� ODWICATIM
GENER ' NOTES
• .q 6 'Y0' t. BOIL '-�. EXISI''NG FEATURES AND SPOT ELEVATIONS TAKEN FROM A SURVEY BY CUMMINS SURVEYING, MAY 2006
2. T.HI` -.r r IS PREPARED FOR THE EXCLUSIVE PURPOSE OF PROVIDING SUPPLEMENTAL AND QUALIFYING INFORMATION TO THE
\ \ / N C ", R. Div OF WATER QUALITY PURSUANT TO THE OWNER'S COASTAL STORMWATER PERMIT RENEWAL APPLICATION. THIS
\\9a ��-'�/ PLA' S NOT TO BE USED FOR RECORDATION OR CONVEYANCES OF ANY SORT.
J
0 4 yy} t"' ��` -- -� BASIN "B` SECTIONS - A5 REFURBISHED ,IDLY 2006
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OUTFALL. TO MARSH
SPILL WA r WIOTP 20" .
SPILL WA', AND SLOPt S i IVIED W1 r., UNGRADED
91F RAF AND PLTEF (,l,iTH
8131N a TOP ELEVATION 4.1
RAIN U_ `zPLLLbA1-iMAdi.
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REV 1, .; n;i -- CORRECTED BAS,N SUMMARY CALCULATIONS, ADDED SPILLWAY DETAIL FOR BASH B AND DFlCFYP11W TEXT FOR BASIN A SFIILWAY, N010 REN90N1
9NEEi:
IN';TON SPEEDWAY
PERMIT No. SW7960401
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DRAINAGE AREA A 23,326.4 sq ft. (0.54 acres)
IMPE.<VIOUS AREA = 19,561.4 sq. ft. (0.45 acres)
83.9% COVERAGE
DRAINAGE BASIN A =
2.8' ONTOUR = 2,848.6 S.F.
4.3' :.:ONTOUR = 1,599.3 S.F.
2,84E.6 S.F. (1,.5') = 4.273 C.F.
(2,806 S.F.- 1,599.3 S.F) (0.75') - 937 C.F.
TOT,= VOLUME PROVIDED = 5,210 CF.
DESI.,'f VOLUME 23,326.4 SF (1"/12)(0.81 IN/INCH)= 1575 C.F
EQUIVALENT RAINFALL EVENT 5,210 C.F./1,575 C.F.= 3.3 INCHES
BASIN BOTTOM ELEVATION = 2.8'
BASIN OVERFLOW ELEVATION - 4.3'
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DRAINAGE AREA 6 = 74,586.1 SO, ft, (L71 acres)
IMPERVIOUS ARE4 = 47,792.3 sq. ft (1.10 acres) '.. /'
64.1% COVERAGE.
s
DRAINAGE BASIN B
3.1' CONTOUR = 7,2�1,9 S.F. v
4.1' CONTOUR = 10,403.2 S.F. -�
7,271.9 S.F (i 0') = 7272 r-F.
'10,403.2 S.F.-- 7,271.9 SF) t0.5') = 1,566 C.F.
TOTAL VOLUME PROVIDED = 8,838 C.F.
DESIGN VOLUME: 74,586.1 S.F. (1'/12)(0.63 IN/INCH)- 3,916 C.F. �•�..,�,`
EQUIVALENT RAINFALL EVENT: 8,838 CF./3,916 C.F.= 23 INCHES
BASIN BOTTOM ELEVATION -= 3.1'
BASIN OVERFLOW ELEVATION = 4.1'
r
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94�n
SECTION D-D
r. 10,
SECTION E—E
I•. to
SECTION F
I•_ IV
1
SCALE 1' 100'
LEND
- - - - .- - - TOP OF SAW
-- - - . - -TOE OF SLOPE
- - - - - - - - - - - - - CONCRETE W/ GRADE CHANCE
r ?, - DRAINAGE BASIN WATERSHED SOUtOAtY
ad - SPOT ELEVADONS BY CUMMINOS SURVEYING
PRIOR TO BASIN MODIFICATIONS -
ud 0 2006
GENERAL NOTES
?, I' XISTING FEATURES AND SPOT ELEVATIONS TAKEN FROM A SURVEY BY CUMMINS SURVEYING, MAY 2006
;� PREPARED FOP. THE EXCLUSIVE PURPOSE O� PRONDING SUPPLEMENTAL AND QUAUF'rtNG INFORMATION TO THE
Nk DIV OF WATER QUALITY PURSUANT TO THE OWNER'S COASTAL STORMWATER PERMIT RENEWAL. APPLICATICN4 THIS
Nc:IT TO BE USED FOR RECORDATION OR CONVEYANCES OF ANY SORT
^� r4 N I Of
SPEEDWA.Y l'
�OkfiA'ER i ERMIT NO, SW79604011
;
�y� __BUIL-T DRAWING
gti
N ON, DARE COUNTY, NORTH CA.ROLINA e
_ I ,
' DRAWN: _T�.- CAW FlIE:
AWROVEO:
20U N q. KPQ RJS CURRENT REASON:
v0. PATE:I REVISION
196 6/22/06 1 DATES
PERFORAAMCE
ENGINEERING
8604 CARATOKE HIOFIWAY — POWELLS POINT, NC 27966
4
1:
4i

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OPBRATIOVI:AND NAINTENARCS AGREENBNT
• PKf)Y05M 0611 h, IHSPNCTI0N8t THE BASINS OUST BE INSPECTED AFTER EVERY
J!!/ NOXII'ALL BBYYKNTQ-GBYBRATiNG It SXCSE8 OF 14 OP RAINFALL IN A
Y' UIliCST i71(f - ftwaGFG - 12 AN. PBR'IdD ARD A$ A ti1NI1toll OF ONCS IVER$ 98 DAYS.
SITE AIATIdirl AE�hiBIAL
Ikvjw fl fO UM am �1 - COMA TSON81 4b3 BE NOTED AND CORRECTED INCLUDE EVIDENCE OF
CLOiGAING 1I.B. STANSINSI WATsR': AFTER NORMAL INFILTRATION
_ y,•1} yO. EKKjTlk* ELIENATiOU - - TI1118 HAVE JFI.APSEB), ACCUHULAR'I-09 OF TRASH, RUBBLE OR
FI' i 4IE• V - DBB3lIA, 80b8ION.OR SLouGUtmirorF Or SIDESLOPBS AND/OR
WlaaD Wfm OUTLETS OF, IQUIPek EA't10N CONDRITS, 6BDIHBNT ACCUMULATION
/�/ K►LH6II J - AND ,DiPFEBRNTIAL SRTTLENENT CAUSING SIGNIFICANT DEVIATIONS
I IN $ASIR DEPTH. ANT SUCH CONDITION NOTED MUST BE CORRECTED
016TIlig LM-Mkr0 WITHIN TNO SEEKS (It T17S INSPECTION DATE,
S- ROUTINE MAINTENANCBRONCE, EVERY 68 DAYS THE .BASINS MUST BERAKED'TO SWEAR HP ANY LAYERs, OF SIDINSBTATION Op TRASH
DLNoT>=S f�jePosEO 6/N15N�0 Gr2ADE5 WHICH HAT HAVE 09E0 DEPOSITED THEREIN. THE BASINS MUST Be
TILLED ON A SEMI-AXWOAL SAM;s�. To INSURE CONTINUING
OL%:u b1Y VD• INFYLTRATSOM CAPACITY. A ROTARY TILLER OR DISC NARROW CAN
llfAlO-fFS COAJIA'1(jiRE USED FOR .THIS PURPOSE. 7110 BASINS' BOTTOM ELEVATION
�r 4�Re.�r �ane1M RUST SE CUWF TRtNGD ON AN ANHUAI. PA'B IS. IS THE EVRMT
A A✓ls-iI L1M f'r;r 311011111NTAT7DN TOTALI'RO IN EXCli OF 411 HAS.. DEVELOPED,
IT
' vicajq raw (An oxw THE PARtN' EOTTOft(St MOST MN fICARIF76 UBING .A. LIGHT WEIGHT
TRACTOR OR OTHER RUUi P/7EN'I WElf,11 WILL WOT CAUSE
' SIGRTFLCANT coMPACTION or TIME Runs. V8(48rATIVE GROWTH
b41vI 5
' ub.��: C�e�rEY� � E G1 u'p9E•. WITHIN THE BASIN SHOULD RE RBPT TO VHS HINTNVM REQUIRED
J fc6Vrlt ZA TIDAI LD^.10U1T FOR STABILIZATION AND TRYIN91, 6t1RUM OR OTHER PLANTS LIKELY
0F.t.K.1M. Z,0A1L�. AE • 1), Mki M. 01IS U. aMUURY Lt. -6`11 b. TO DEPOSIT T LEAVN8 OR OTHER O"ANIC LAYERS .MUST BE KEPT OUT
r WE CpL.INiY LY. 3�KMb .AML Z. t9°15. of THE BASINS, IF Tile NROItND Cog EA IS THICK AND HIGH
ENOUGH To CAUSE SIGSIrii iT', CUTTINGS, THIS MATERIAL MUST
23MUU0111i /jFItlI U 41EUCLI 15 PidGM OA1 _t(ME'Y f4Ef11ft>✓D BY RR RAKED ASO RENCIVBU iii HOWI11103.
14I16LEN m. mmyjkHS .SQ.. S1i'1TI..M 9L12IIE4 fill aASTEL'MAW r11I C. RESTORATION OF INFILTRATION CAPACITY, IF SEDIMENTATION OR
IrTE mIIA itimv. r.. am �� 20` may• - � COMPACTION CAUSES THE BASIJW TO BECOME INEFFECTIVE IN
1OPERATING . AR INTENDED, DEEP li TO A DEPTH OF 12" MUST
37 aiEVdT18US 9t>DIllU ARE ° L? (ij IIf°.V'Ti'tonal.B£ PBRFORNED, FOLLOWED BY NE -GRADING AND LEVELING TO
4)jbMGVAFi O VEv sY AlLI:1R8AfY_ 6NL1ME!" i, IM. MyL 1"i DESIGN SLOPES AND GRADES.
III MIL WILLS. UWM GAQOL)UAI 27)4F1 «<( "'•. p+ 01i CERTIFICATION+ 1, TNE, UNDERSIGNED, BEING TUB OWNER OF
"��.�1 �%tfi F'' THR SUB.TRCT FACILITY, DO HERRST CERTIFY THAT 'I HAVE READ AND
iiiMi E. 1C011LA&F> L K.LA. aAMPf -WATTllly FLAU UA'i 4 �>,, s7 � UNDERSTAND THE INFILTRATION BASIN MAINTENANCE PROCNDURBS
117141 1 ;A 0.111RE ri- FI M L Ili i61.101 t -WE: "110 r �F � �' OUTI,ISED ABOVE AND THAT I WILL PERFORM THE SCHEDULED
tiF 15ibU AS Cllif[1L ET1"S1 !S 111haol. 'RIf' rLmi OAS c �j� TNAPBCTIONS AND TAKE T118 CORRRCTIVE MEASURES TO INSURE THAT
THE INFILTRATION SABIt/S AIR lAINTAINED 60 THAT THEY CONTINUE
FREPAQEI) IIJ AO D2IIAAYR� HJIIU UL.AL.. TIRE Zt.C+IdPTE2 F �r TO PUSGTIOM Z 118 iNTESOE RNSR,
5MrTI U tf.M. (U1TA1E'..S MY 6IM01,iAL 5raUWUP,E,'SEAL �
AM RM14T�TOU AIU►IP.�Q, IU15 2147' JAY � fW4ARV, liy � ��ej /;�.:' iI ' � S' 74 �l1p
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3) TDTAL Go-waT5 - '� 4f
„. 4) RffAL 'I'AlIY M Iil i = 40 Ric"
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51 CiNEf2 OfvE t1DAA5 : v _
i%1OL& CUIIvLn6-aL1T i1* M. 7771a !A-frt. `'
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mvmw ILuruuev5. AD-RUIC2 M. 5(0% �,fr
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h�L mt% T i 3Aas 4.47. t- fl1AM4 W,435 � /� •-
T-Z 10.712 Msr. iiA.�T.'- /
r-5 1r..t;oN$ 69,cr USABLE Ibl .Sq°I y 7
mwje7 famm LOT enamL1L15 to, US fA.1r Tl3aLL Ue 334'tJ.Ff J�✓
' STORMNATI,R MAWASWMBRT PLAW �.
I MARARiE}ENT CORCEPTa IT 18 THE,3E11aacslEH`S kNTSNS TG lRpvide'
�2 �• ELK � _
T#U1?IA7IIMUN POI whim OT RBRAilittl *R Owl", ililviiii VMS ARSAs SI�IMFUr �fAYE
• IVTAIN lixTA�RRr� 7 �► + at JATlowo To • /
1, D11 take IH AS I B1tT! TMM T T1IeEWBE'RAIYFALL �' S1jRd� ev § A / // t�
F ! 144r, VI'mc, ✓E stIoTFIC it `rf�I, v r�.0w MILL
" d!W _ 4 Fitt D AN THE,fAtr YJkTkONB`'IIIIIdGN. LILT tetASk., A*13 YME i �-�1� _
swNvaikEG`TEDiiiy ,_ 1rAoH,AMID" A A 1 t A' , - _ - PP�nX A A-
R.�
'TIPS .!!�»A 4Tt N?klR !4R . [RS78 > LY
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alBPsaa# w ONr1F�Cx' 1R1E ANx LR>ta1 na A G Ko MA i .�y� c
-A•, -�t- AND "s" Nks t►t rExx#tk IH18INs LABELED �- ti o e dun v CUTFXNIUhES
ESA10 TCT7.YlAt,Y, �- /^ oe 45G rE, aa3
at- y$k11: t T1{W 1tf16)tAf+1�3tAG ,21t}(iTli SOY.L TYPI,
AC.#S4)Rp3RG TD To N. S. B. A.:r SiC.:1•i; R@IL Snvey, OF DANN COUNTY,
("-INJ "IRA rpat BRMWON N TMB, "Imi "Ito '
PRSE(MFIIIABT#T,Cr1NI1RY I1Urtt. PMII (+S>NW SISRiIff'"16 CiWACTRNIZED
'
Pt.PsFR1431.1,ITp r1ANGING PRrFit 6-71) INL-HWs FQ.'Ii`'HTUR,IN ?NO a-35
AEPXiH1,"i *2r1 TN /NR. AT rTR RAY�ii 11EP .' IBiH
.
'�"PNB IAW E'1.4 TY w1m rA#`1t.'illi INFIITRA ION AWD NNLP HINIt1I ZR
vW'i
-. TPIR:" F71f4•IFNT The llo lt`.0-TIIE OYsRrY+OW PROVjSjQ IB -,MILL 08
'. NRI`.a'111FARY. THR ms-10t WI.i.L S ATAMTLIQ(8D '8Y, PIov IbING'
:VBQ;¢1!AT i:YB COVER. A" RY LTHaTING ..SIDEBLoPNS T0�3,7 (NRVI•
�G�
II- 'TWt'RNICAI, SUMMARY AND 04TA
A. `.074111IBUlA11T AREA -Ai T1t1S ARRA CdNSIYIT'8 0�' TWS EXISTING
J
A40 pitOPOsND PARKING LOTS .' THE SOUTH 37F dr, .TIIE OFFICE
lI
STQsAGR BUILDIM6I hilt) Too.ANBA DRSIGNATto FOR BASIN
„I
� ,
,AND
TNI TOTAL CORTRIBUTARY AREA TO 26,626 BT.TNE
O
•RHCIJ,VLNE BASIN (FI) WILL BE COSSeRYCTEO 2i' WIDE WITH THE
tole -ELEVATION SET AT 4 B' NIND:THN E*Mft. EL#V,ATiON SET AT
2.8'. 1888 SECTION 1-11>THE UIIIT "tt)ME Or I RIB,8A82N IS
TO
tnCULAY80 TO S8 28 CTji Ti IAV#tN Dr T8 -ENALE IB
BE,A NINiriso OF 290, FOR A TOTAL VOLUt1E.OF '3,688 CF-THE
EQUIVALENT RAINFALL VOLIINS IS:CALCULATIID ET Sd88 CF/25,628
'
I
Sr 1,12'1 2.761 ANY A('CUMOLATION I11 EVeat Or THIS WILL
OVERrhi INTO THE HARSH FOR TRARBPORTATION SY .SHORT li
1
TOWARDS C0,16 OR 4:RENK.
B. CORTRiIIi AREA 'B", THIS AREA CONSISTS OF THB NORTH 1/2
OF Tilt OFFICE BUILDIRG, THE opi AREA . IMMEDIATELY BEHIND
THE OFFICE, BUILDING, OVAL TRACK T-1, AND THE AREA
DESIGNATED FOR BASIN: F2, THE .TOTAL rap TN18 C40NTRIBUTARY
AREA is I6,99S Sr. TH►. RECPIVIWG BASIS (121 IS TO BE
CONpTRHCTED 17' WIDE WITH THE EXCEPTION OF A NECKED DOWN
SCGHRWT SB•1ACEST To TRACK T-I. THIS SBOHENT IS EXCLUDED
TOTALLY FROM THE VOLUMETRIC CALCULATIONS PRESENTED, AS IS
'FRB INFTELD ARRA OF TS8 TRACK. SEE SECTION 2-2 FOR
r:EOHRTRIC DIHENSIONS Or Tills BASIN. THE UNIT VOLUM OF
i
TILTS BASIS IS CALCULATEII TO RE tl.25 CF/Lr. THE NET
LSNGTIIR tIXCLuDINW TMR NAR"011i ppsoHBNT Ap*JACXXT TO Tit"
HHN4' Ago AY '1`liN iF'FE•'IM SW BASIN 0A
'
I AND 41140 NURWHANN
i"N
18 445 14 FOR A ResULTINt. AVATLhBLE VOLUMS.Or 5,006 11
THE EQUIVALENT RAINFALI, RVSNT- 1E CA.CIILATIB
CAPACITY OF THE
IA, 995 ST X '17AXI11IXE .2"/'- 3.53-. TO tTHE
SYSTEM, BASINS t2 AND F3 -WILL BE CONNECTED.
C. CONTRIBUTARY AREA 'C', THIS AREA CONSISTS Or TRACK$ T-2
WITHIN
AND 1' 3 AND ALL THE UPLAND AREA NOT FALLING
"A -OR R THE SURVEYOR-S DATA
-
COWTRIBNTARY ARSAS .USING
TABULATE[' ON THE
5olIj6Asr. RSCIEVING BASIN
9R9SAH5 A R'j- TiltCALCULATED
S '-
193,899 5F-
VIJ UE WITH OCOII$TRY AS
I .
E r
{431 TS TO BE CONSTRUCTED 7�'"
THE UNTT VOLUME FOR THIS BASIN IS
I)
DETAILED ON SECTION ? 3.
31 CF/I•F. FHR DESIGN NIHINUH LENGTH IS
j
CALCULATED TO BE
FOR A VOLUUF. OF 5, 91? Cr. THE INFIELD AREA FOR TRACK
WILL
225'
T-2 15 ALSO INCLUDED AS FAPT OF BASIN 13. THIS AREA
ILLUSTRATBD ON SECTION
PE CONSTRUCTED To A DEPTH OF 1' AS
VOLUME (it TUTS RETENTION AREA IS 2,857
4-4, Till;CALCULATED
CF. FNC GROSS PASTE A3 VOI,t111E TARN, IS 2,087 6, 919"
BY�I1�
R,97A (IF. THE EQOfVALEN'[ RAINFALLEVENT IS CALCULATED
w
R, 976 CF159,27E SF % 12"/'- I.A2".
CUNTRIBUTAPY AREAS 'S" AND "C" AND BASINS
j W
�I1
NOTE , COHBINCNG
112 ANN FJ Y1:RLI> 76,77i Ar AIID Ia,NS2 Cr RSBPSCTIVBLY• TUB
ST X 12'/"
32 27 L)
E NIVALNNT RAINFALL EVENT " 13,?82 Cr/ 76,271
Q
2.2".
IT SIIi1ULD PE VOTED THAT THUPE 1,; NO CONSIDERATION BEING (11F ���
GIVEN TO THE ABiI I. TY OF TIIF, DERV IONS AREAS THROUGHOUT THE
SITE TO INFILTRATE A FOli 10' TIIE I.NCIUENTAL RAINFALL WHICH
'FALLS TNEPFf)N. TUfS AIIUS AN A11II7TIONAL UEASURE OF - vY{I
CONSERVATIVE ORSIC,H 'r(i 1't1E PLAN. -
i 7a LW7 ri M /j7V/Iti E/nL`1✓1-
,tNnj oN1­y
u k O,,
Z3
1 1
MALZN 74 t° /
1 A5 R/t;ir I_
31
4 3t '
fG
ZA
29 c o ti A 2rA
I I Q 14
31
32-
1 �. `C 11 I/. � 3 • , lZ� y ' � _
E
^! 1� 1 �• la 5 o ti /�� �iy �' /' ` // YObrncP) Ar)IT14U
1 3x nu.I(mrt=7.50 rFI,1
l I 36
if
Fnlre +nI F-
V 7 iM 5.4
t NC , /l
38 J
i
5l ;; 39 / 3
1.3 J ) 40 v
RECEIVED tr
WASHINGTON OFFICE
584',69- W tm'm � \a1"0 u�4� 1� o, MAY 2 8 1996
1PG V ati� �,.� /m.m' ; A5W TFi,Ffl1N1E FTC,
F f 111EQ Fnl�
U. KI W
[_yaJ LY,7TUA 3
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su,t - 30, APPROVED BY DRAwH By
MI. /
DAtE IIZI II% I
REvaeD
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-31MMIE T). JM DAUA D. "MWE"
_I'S Tf y7J ff F_) flit I10D li 1013 11 11571
CLI WYTnU-PTL&U7c_ -Tal-li DRAWING Ni
L4FE: C'CLILIT-4 Lli 117_
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TAIIVA 1DR.
twGr11T WTUM
51TE A)ATIN.LAL MENVIAL
VICIUIT`/ AIAP (A0xeLel
Ume_) : � SuvvE`/)
ITF,I.K.M. ZME AE-1. P.AI.fL W. AlhI D, CLAIMI.TlorrV U0.37534b.
LAZE (WNT(, AIC, DATED MOL 2, 10313.
2)W0IiDA2Y h WkJ 4AEU0kJ 15 BASED DA( !�UEVE4 f¢__r.AI T) BY
)UfSLE:V M. MEEKIA)5 JQ„ £AITiTL.ED 9IE1E"f F02 rAASTAL UJJN MIX
curRETE NMPAA)V. IIIG. TATED AMIL M, ME,,
3) ELE'VATIAl1S 9LLYll►J A8E bASED M 1970).
4)7AF06R&FIAIC. 4-1D7VPV 'ef ACLUMAPF 411EVE^K, P.D SAX I°1S1
KILL DEVIL W U-4., TAM 47)
5)2. MAUL P. KALIL4A,&FE8- K1h. aYn F`/ TIIAT'1111c, i'LAU (UI ?
le=L) rew 1, mizu sr FiEL17 LLD S( &F`/ ; -TOE KAT10
6F FIZwI51DU AS CIUCLLATED IS I: lttzm�'. RIPS F'ue.) II AS
MPABEn IN 1xAeDMCE IIIITU U.C.AC_.. T'ITLE ZI.r4IAPTP2
a. 5ffT101J I(em. LUITAU'-IS MY GBIGIUL 51C-,LIAT{I2E , SEAL
41SM R1:Ai4VAT10U AIUTAMIZ. 'IUn 'ZInT U\l AV FE62(4AQ4, 1019(�
A]aMe7 ; ( CiWfeAL)
1) WILDIM LI), I / MTICE / ,MLE4 / TW
3ATUFIYW5
Z)BOIL.DILrAl Ate, Z /-STOPAF,E
3) TDT.LL GO -KNITS ; =8
4)TDT.&L fAWIW SPACEh = 48
I-11AAIDILNPM9
51 nNEkLCyE mEA5
.f7Yi LCA EUILDI&vG-M_rElTE EE,
7771a
53.F7.
FRAFASM WALKWAYS, MDI110U5 FZ
5Co'X.,
'.FT.
FRAFMM TUCKS T- I
34 85
1A.1T
T- 7
n ,'712
cA. FT.
7-3
(..(r33
SA. FT.
PopL7g) FAwk)1 , LAT ADDrnm_S
10, 113S
66.IT,
ST4PIIWATLR HANACFIIENT PLAN
[. DANAGM11CHT COIICP,FT, IT 1S TTIF I'FSIriNFIIS INTFIRT TO PROVIDE
TITS HAXITIUH Vn LU11F OF RETENTION rAFAC'ITY WITHIN THE AREAS
AVAILARI•E.. THN RETAINED STORNWATER WILL BE ALLOWED TO
TNFLLTPATE ON -S1TR TH ALI. PITT THE HOST INTENSE RAINFALL,
FVBNTB. AT TNBSF TITtES, A sIGRIr1CANT "FIRST FLUSH" WILL,
RR RETAINBD AN,.Tt1E cllll'I ATTONC BFLOW WILL DETAIL, AND THE
FNT+IITAIO NUN nFF NIL{ ItC UILCrTEO Ai MEET FLOW ACROSS. A
"ROAD 1*) 276'i RNPANSE OF HAR511 BEFORE DEFOSSTTON INTO
r(ILINGTON CREEK. TIIF FROFn3F,U S)'9 P (•RADIIG WILL RESULT IN
THREE DISCERNARIR CONTRIFINTARY-AREAS. THESE ARE I.ABFLFD
ANNA 'A", "H" AND "C' WITH T11111 RRCEIVING BASINS LABELED
RASIN 111% "7' ANT) 'T" RCOPFCTIVFLY.
'r'f1R PTIFVAII,fn(: IN -SITU SOIL TYPE,
ArCORDTNG TO THF U.S.n A. S C S. OniT URVP,Y OF DARE COUNTY,
IS ORIP,R FIRM SAND WITH TIIF AILIACPHT IIAR,II HFING
PRFOONINANTLY C'ONAnY IIII(A Tiff' OSIrR IJili"; IS CIIARACTF.PIZFD
.OY IFIIHFADII,ITY RAN[IN( Fprgl r A !tF 'ITF ; PER HOUR IN THE P )'
nrrTHR ANTI 2D. IN. /IFS A I FAI'rP tl PTIL1. TILTS IITt;R
I`I'P1IF ARI Li 11 NI1,1, FA 11Ii'fI r IDt'll 114ATION ANII IIFLP IIINIIITZE
'1'nr PrTftill T'O WDO-11 THF '!'111f1O❑ I'i'r.Vt IONS WILL PP
NF(.I1SrRT15. TIIF PASTN:. 411.1, PP f.TAPtI171D RY FROVIDING
VTGFTATLVf: COVER AND RY 1.111I1iNG SIDESLOPF.; TO III IB,VI.
IT. TECIIIII('AI, SUIFHARY AND OFrrA
A. VONTRTRUTAPY AREA "A-: TIIIS PPFA CONSISTS OF TIIF F.KTETING
ANTI YINIFOSP.D PARKIN,-, LOTS , Tiff: .OUTIl I/- OF THE UFF'I('E
AND STORAGE. BUILDINGS AND Till! AREA DESIGNATED FOR BAS1N
41. THE TOTAL, CONTRIBUTAPY ARFIA IS 25,E+70 SF. THE -
REC'BIVING BASIN (11) WI1,1. BE CONSTRUCTED 20' WIDE WITH THE
TOP ELEVATION NET AT 4,0' AND THE BOTTOII ELEVATION SET AT
2.8'. (SEE SECTION I-1:1 .THE UNIT VOLUME OF THIS BASIN IS
CALCULATED TO BE 2B CF/LF. THE LENGTH OF THE SWALE IS TO
BE A IITNINUH OF 200' FOR A TOTAL VOLUME OF 5,600 CF. Tiff.
EQUIVALENT RAINFALL. VOLUHV 1S CALCULATED BY 5600 CF!25, 6'S
IF X 12"i'+ 2.76". ANY ACCUIIUI.ATION IN EXCESS OF THIS WILL
OVERFLOW -INTO THE IIAPSII FOR TRANSPORTATION PY SNrET FLOW
TOWARDS COLINSTON C'RE/IK.
R CONTRIBUTARY ARPA "B THIS ARf'.A CONSISTS OF THE NORTH 1/2
OF TIIE OFFICE BLIIIPIN4, THF UPFN AREA TIIMEDIATELY BEHIND
THE OFFTCE, BUILDING, OVAL rRA(K 'T-1, ANII THE AREA
DBSTORATEI4 FOR BASIN 12 TNF TOTAL FOR THIS CONTRIBUTARY
AREA Is )6,99S SF. 'CHR T.rrEIVilir BASIN (02) IS TO BE
CONaTAIICTBD 12' WDF WITH THE. FXrFPTION OF A NECY,ED DOWN
BEGNMWT 60.FACE111 To TRACK T-1. THIS SFCIFENT IS F.,XCLUDFD
TOTALLY FROIF THE VOLUHFNRIC CALCULATIONS PRESENTED, AS IS
THE INFIELD AREA OF TIIF TRACK, FEr SFrTTON 2-2 FOP -
GEOIIF.TRIC DIN91191MTS OF THIS RASIN, THF, UNIT VOL.IDIF, OF
THIS BASTN TA IAI(III.ATTIP TO PR ll ?S ('.f /LF. 'FIN: NF1T
LENNTH, EXCLHOIN(' 'PELF NARROWER FPOIIE,NT AUJACBIIT TO THF
IS 441All" frouLF FOR ANlRiRESULTING« AVAIHASLE Vn"T"Fe OF 5,006ACF. Ii
TIIE EQUIVALENT NAI NFALI, CVCNTI IN
CA ,CUTHE ED By CAPACITY 41 i�f' C
Ir.,095 SF X 12"I'- A.
SYSTEM. BASINS 47 AWLI ? WILL BE CONNECTED.
C. CONTRTBUTARY AREA "r": THIS AREA CONSISTS OF TPACKS T-2
AND T-1 AND ALI, THE UPLAND AREA NOT FALLING WITHIN
(}ORTRIBIITARY AREAS -A, nR"TA' . USING THD SURVEYOR'S DATA
TABULATED ON T11E bP.AH 1NrI TOTS "Pf, St. TIIF ULATFD AS
RF,r/611TNG BASIN
101,899 Sr- (16 9S5. 7S,6R1"
I1J) TS TO BE rORRTRUCTED 5' NIUL WITH GEOIIETRY AS
DETAt1,P,O ON BDCTIOW I.A.TILL UNIT, VOLBNC FOP THIS BASIN IS
IALCULATED 10 flF )n. 7A CP!LF. 111E HBFICH NINTIILIH LENGTII IS
725' FOR A VOLUIIF OF' ri,`_ 1° CF. A J
PHINF3. W
AREA FOR RACK
T-2 1S ALSO INCLUDED AS TAFT OF
T1SIp 3. THIS AREA WILL
BE CONSTRUCTED TO A MI:FTH OF' 1AS ILLUSTRATED ON SECTION
4-4. Tilt CALCULATED VnIIOfE of THIS RETENTION AREA IS 2,057
CF. THF GROSS RASIN ti VOLUDC YOCN, If;2,051 • 61914-
fI,976'I'r. THE CQOIVALFNr PATNFAI IT EVCHr IS CALCULATED PY
9,176 rri591276 SF X 1' /'- 1•S'"•
NOTE , <',CFRINING CONTRIPUT'ARY AREAS "R' AND "C' AND BASINS
I7 ANT) 11 VISLD ,4,111 !IF ANT' I YR 2A 2FCF 7 ATIUCTFVXL, , THIS
RQUIVALENT RAINFALL EVENT - 1I,. `
2.2".
IT SHOULD RE NOTED THAT THERM 1`: NO CONSIIIRRATION BFtNG
GIVRN TO T86 ABI-LITY OF THE rCRVloRS AREAS THROUrNOIIT THE
StTF, TO INFILTRATE A FORTION OF TIIF INCIDENTAL RAINFALL WHICH
FALLS THBRRn11. THIS ADDS AN ADDITI)MAL HEASURE OF
CUNSENVATIVE DEHiGN 'CO Tilt PLAN.
i
LI=C4EU D
(� FRDT'03FD L16HT111G,
Q
7F— —I FRDP�fO (o' k100D
MJUID RuFfF f
O EY16TWAT ELEVATIOAJ
--(�-- nuttier) wlete7
v
G*
E219T)0.1E uA1mA1C-7
J
G
I L
1
J
J
S Ta LI1n All filE� //'1 ''�y/,1ti LInC>v"
Pth� 0 Ly
OPERATION AND DAINTENANCE AGREEMENT
A. INSPECTIONS, THE BASINS RUST HE INSFEVTED AFTFP FVFPY
RAINFALL EVENT (;CNERATING IN EXr EfiS OF I" OF RAINFALL IN A
17 HP. PERIOD AND AT A III nIItUlr CIF ONCE EVERY 90 HAYS.
''ONDITIONS TO BF, NOTED AND rORPECTED INCLUDE, EVIDBNrE OF
CLOGGING (I.F. STANDING WATER AFTER NORnAL INFi LTRA'rio):
THESS HAVE EI,RPSFDI, ACrIBRILATTON OF TRASH, RABBLE OR
❑EPR1S, ❑ROSION OR Sl,OUGHIHG OFF OF SIDESLUPES ANDO',R
OUTLETS OF FOUILIZATTON CONDUITS, .SEDIMENT ACC'UI1ULArION
AND DTFFF,RENTtAL SFTTLEIIF,NT CAUSING SIGNIFICANT UFV'IATIOPS
IN BASIN DEPTH. ANY SUCH r'ONDITInN NOTED MUST PE CORRECTED
WITHIN TWO WEEKS OF THE INSPECTION DATE.
R. ROilr'NF HAINTCNANC'F, ON(F CVFPY 60 DAYS THE RA,INF RUST BE
RAKED TO BREAK LIP ANY LAYFPF OF "EDTMENTATION I-n TRA".II
WHICH DAY HAVE: BEFIT IrRPO tTF.h TRERFIN. TIIF' RASI141,, MUST BF
TILLDD (Ili A SEMI ANNUAL FIAT if" '10 INSURE CONT'THOTI.r:
INFII,TPATInN CAPACITY. A POTAPY TtLLFR OR DISC HAPRI1W CAN
RF ll`:FID POR TIITS PURPOSE. ')'Ili: HA. TN ROTTOII ELEVATION
IIOS'r Rr ('ONFIRIIFU nN AN ANNIMI. IIATZ11T. IN THE FVFNT
Sf OINFNTATION TOTAI,1NC 114 F2rP; nF 0.1' HAS DEVI'll.-Il'Fill
TCt. tIA'IIN pwr'r"1T(Bt IOOWT 11F. .,•fill IFIF.n UATNC P I.,IGHT WEIGHT
TRACTVP OR OTIIFR RQUIPITENI Hlll''I HILT, NOT (AUSF
IGNTF I''A N'I' f-011"ACTION (IF Till! Rr'1LS. l'FGF,TA"rl Vl; GPI'W1!
NITHTN TRF, RASIN SHOULD BE KEPT TO TILE IILNIIIUM FlIQUIPEU
FOP 5TABILIZAT/ON AND TIMEr, , ..HOURS qR OTHER PLANTF, I,LKFI.Y
TO DEPOSIT LFAVFS fill OTHER ORGNIIC LAYERS MUST BE FFPT OUT
OF TRN BASINS. IF TIIF GRO011O C I:'FR IS THICK ANH HIGH
ENOUMI Tn VAUrw SrGNtFFrf%RI cOv,i NcS, THIS HA'f1:Hl Al, HOST
fill RAKED AND REIIOVEIB AFTER IM111465
I. Pf, rORA11ON OF INFILfRATIOII ('ATAr iTY: IF SFOIIIF,NTATION OR
('1111PACTTON CAUSES THE BASAL, 'ry, RPCOIin INEFFECTIVE IN
OPPRATIII6 AS INTEIIBED, FILET, Tll',ING TO A DEPTH OF I" MUST
PE PERFORMED, FOLLnWCD BY RE r:RADING AND LEVELING TO
DF:SIr,N SLOPES AND GRADES.
.� S r OWNER (IF
ONFR, rF,RTIFTCAtION, I, THE INUFR`�[6N F.U, BEING THE O 1ER
TI!f 9UHJE"T FACILITY, on IIERERY rrRI1FY THAT I HAVE READ AND
NIF;RSTANO PILE INFILTRATION BASIN MAINTENANCE PRnrFDURES
)TITLINED ABOVE. AND THAT I WILL PCIO`ORH THE! SCHEDULED
INSPECTIONS AIID TAF.F THE I'01111FICTI,IE MEASURES TO INSURE THAT
'r RE, INFILT'PATLom BASIIIS AEI: MAINTAINED SO THAT THEY CONTINUE
'fn PANT; PION tN 1N'fRPDED 11
76
iO IIFi+'S SIGNAILURF) (DATE
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AREA : 11f If
111025H 103_.159 A,fT. '-
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it
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IT
APPROVED
NORTH GI 4m 6NS cmwAL
DIVISION
G �w7
.91aNlrwr irlM �
WASHINGTON REEIVOFFICE
MAY 3 0 1"6
(
0.ENL
I„ 38, "..OVFC er _IRewr, e. fir v
I(21 /,%� •f +,5f0
Tj)M_' .AYdII( �X.lFVEV '1F �f_WFLLTV ,�LL)IYTJ P..`f
-31MMIE T). AM DALIA D. _'S(JVAMF2ELL_
I'S ZY­�(EIFAID Ik) DEED FM 1013 C; K:''
:nLIIY�Tnki .AT7..AU7IC "TP(IA)Sl-)IP �R'w,Nc'+uMefc
DAP_E rCIULTY AY)ET21 CAQL)LIFSA ll:i - I r'l L
f ' '

! ` e,,()r XO Llafiil{C
w.rJD !aJu; >iJrfee �oo 6
Zi
f�O [:[IhTlflo ELLVaT!,uate the. G
Ij
t:rTCU ;�i. j ]► Ee!7T)t,r. ur,unflc,
art LT.rIL IIJE. ! G _lout! �Ff fV0 ��t2ttitloJ
�� nn'u T_GSE.D �L.EU A'Ctoo
ii (t._: k� 1 t l t ��r L' [:S �.E / � 't r It [ • �\f:..i
i
Routine Maintenance
' Aar L ,tz, m.h,x
(- J . L ....! Lix itY The mamr.nance required to Irnpraaon basma is slightly griller man that
✓l.• f • LA3. u:1 A b. C-ILA L- 4 Lai. 3,�✓3T YU. needed for dry dwnoon ponds. Soma of the normal ("amt na i banks bat
II J JV14L Z • jolt . - Infiltration bassr s we detailed below.
a1:i JE'! tL�fdILCD SY rvSPECTION
'Y FEZ Q;1STAL KtdD/ NIi
- The peAormarhce of to nRNaeon basin should be checked after ovary mafr
'--r
C10 U .SEC 7-1 o'rll e
s
� X
LA
a:+�--h; G s^yJv.:L: eT�a a,P`.Ik tail tYTS.
eremh in the Mist few months after construction Partradaretereonshorldbapaid
In bases bas46
I�
\ I •-
o�
L"iEi /r.:.V. t-1. 17Z`7.
Its how long runoff rernarns in the structure. Standing water tins, within
��.
•
\G' j
. a -
to 1`2 rows Mr a sbrm, h a good indcalton that the v,altrwon capacity of the
1(,� ;
v/!
- •_ .I^r,�.r,'.--_•-:.!L it u•aJ f,' �.�-tti-{d C ti;h t/TN 0I P.D :dye. lf"r�l
balm maY Mve been werewmaLad. The lnspectorsMnd IODk'or factaswhoh
1 /-
,
4!.L V-../lam. s-:,�.� k:_ZA C":L"J". :'[� 4z) -
may beresp«mibleWcbgga+gthewan.suchoupend
(w//J
- -
tthessdm«derwwn.low
!idea, excessra camMctler. a rraigmal soh. anti then gat the :efMador to
"Tills
mks arty needed iepaws. As a practical matter. local gwwnnsiss should not
ll fLlU 11:L7
aAjl i,/ 7s:6T
-
release any bonds posted for a bane hoed the trispecbr determm« tut A h
I
CL.c.i;r F.111_;, sub y�J[v;T,E repo
p itminei9aaaee,gned
.
ji" 1. I�.LtG'T "pli�l Ti.k°.1
L ; U L .S _ . ^l I. E Z I . C+41F'TP 2
L:r , isi J&T i a! _. i Tu
e s basin should be enpocted amhuatry. Sera of Me more enOarLa,p-
Thefaettr. th
Y
—J
_
_F
r�..-r i .tU U� M.: •_t' atY n¢:;9; L,aL 5x./L.r.T:.KE. �dL
Keno to chack for trhckide df*&Aat sertlamert cracknq, roslon. haka9e of
IF" growth M the em6rdmstnC this eanddlun of the MXAP in me ball wAld and
ZIT ai.Y i)(- f C voila (f `l. (�-! ;.,
and dens
Plot channels: sedurterp accwmAahon n the basin; and the podensity of_—
.. - -
is grass W an the Floor dill balm.
A.
XX
•
The buflr. . efts -elopes and ream Mgr mumust be mewed at Mast twhce a Year b ..
_
T
T �7
'-i+'
/
- - i -
prevent woody growth. More hequant moving may be needed a the balm a b be
{/Ff L ;'.0 AT�C/J
n1 r✓ v! E L17
't"1.. ` —
-
used as a passive recreation area. Mowing operations may be mnncult smcs the
_
bseah Hoar they alEtn ba soggy t bit mrntanarics grass such as Tall Fescue is -
/j
s
'V"
'r. J i �`/ a 1• •: ��-- •— f
used. Wawa neYrwig can he perfortnd in Use rormatly dry month Of Jos dead
_
1) L t W-�..• �li� i ! +.>~�` +- / •i=+l�`�a ! ail :1.� w k1i-sNa
� SWAmbr (McWRA, it83a).
!
�i'J •a
�
DEBRIS AND UTTER REWJVAL
I ` " S
_
dew`✓. •r.)t ,Y ` ! ✓tG�
I - -
I
I
I Tfash wed bad to collect in f ill4ri uatnon basins since they do rot bans outlets.
InMtrtlarsidMantlai dear9na ado wag collect trash " night cloy the rear or low
flow entice. Therefore. st Is a good practice to remove aR dears and leis d,+rmg
each nhewng operation.. -
s
r4
-
EROSIONCONTROL _
•'ii 1_ A C . - -+ (�•-� -" , .
This a a very "IsmU d manteranca task lances coded sedlrtarcs carp adversity
ss L�-: •J L'L' ✓"k `b. iT.
affect the nbktabw capacity of a bash. Eroding or barren areas should he
u.
)a t ; s+.r
ntmadudely r«egeuted.
- i 5.-I17
- - In i2b .y iT.
t a balm alocatedm located on ignaiN permissiblesots. annual or aemFamvel tang
• -' -
operations may be needed to fnaeLa:n ill"abon cat Wiry. A retry tear or disc
harrow can be used. prelarably in Me ate s+ummsr montIss when sail permeability
a Itkahy r« to be is bov" Ifzmg and the*" of the sod :n the wr:r and sprwwj
i
.. -
months ~ Mlle Io break up the stir and keep n€dbabah cipa city Nghl,
�•, -
Tuled areas should be emi"Latry tevegasted to prevent ros,ori
_ - _ .. _ .. �.v.. �I G,`I^.
_ f. ... l
Non.Rocilms Maintenance
r-• L t r=� C yr I`ll,-V
STRUC TURAL REPAIRS/REPLM:EMENT -
_ _ _ J� ,
In 1-.'v 1 a r; r D _
R the basin not the irillttraboruda!antwn balm design. is ores and banes wM -
-
Corrugates meta! p•pa h« au esbma!ed
-
.'
lungevrty of approamstery 25 years in the field, wheneas, conr_rism pipe all other
( - r IT,, I<-: J-r.1 rcq:J!: a no%:s
saucMas nay last up to 50 yeas. Howavar, of tM basin a dos:y:sd for hJ
-_
. - - ♦
�:ir=au.r1�
- e,AV aeon (i.aa Dual span rapart from art earem l eri ergency sP'HMay) than the
I'' {.,
hsqu incy end cost d structural repurrs is sharply reduced.
1 _ i ..i .T _.`•s.J lei, pro-crvoC IJi'ler0-
RESTORATION OF INFILTRATION CAPAGTY U,
`4nL r -
CC - - l I V: f :
r
over, Din., is original nrptietron capacity of nit M Dean on boron gradcWty bw..(;♦A
- f -: , , .:' r r J
t the problem has been caused by surha rJogg ng (e. g . sedir rst accun(lation
or iGcel compaction), deep tilling can be used to break Lao to esc Qed surface
layer, followed by regrading and le elng. (t td W RA 19.-36b) sL, --_,esa that deep
berg may be needed evey 5 to l0 Years. m deans aiatancea. sand der og,yhic
maW can be hued me tM Mom sera to restore mpmstiors cacwpy as weal If a
- -
r.i:I:IG 3 rv,i an' -
basin still exprnancee ciwamc problems with sLarsing wwetr after there ?sasurw
- -
raw been Laken, 4 is likely that the o gmat baton capacity was overt ilminied
_ - - -(-5 U` �: - r_ l.OU(I^f A
t may thert be necessary la install Worsted undstdrawa brwMh On beam Is
is required prior
remove the excess water.
c
-
• I- _fur,-' fit, <s
SEOM."•ENT REMOVEL
L
,rl it.r➢u� sh
- i :.. •� .+ ILtU alt 00
'
Infiltration grar ams e normallyred inm local saKer residential veatarsheds that do
_
u z j+s ;if ii}L I.l nil
not generate large sediment bads. or are equ!PPad With some lard of sidimerit
-
lisp. However, even thougn sediment loads to the balm are I:ke'y In be low, they
will sea Mw a negative impact on bash perlarmar+ce since dew aedior,a+p ,
%_ r, - 1 tU i I l.l� J i d J J r
deposits will reduce the storage capacity reserved Los eldllt itrx and may also
-
_
_ r`/ Y'.h H D A- t;,uctjo t
uog the sabot sties
-
S"~t removel mighods in inNuA wn basins are drifecen( frcr, those abkzed for -
-
.
extended detention all wet ponds. Removelshoud not bey", ia.sl the balm has
Q. A;`.':.i f
had a chance to thoroughly dry out. preferably to the point white tM tap Layer -
.` iJ „ I L u
begins as crack. The top Layer should than be removed by agN equtpmrst. dkng
- -
care net to unduly coned the basin Roe The femarrung sal can then De deeply
- baled with a rotary Mgr of disc harrow IG restate ma'trallui, Will Mess oslurDed
_-``. _ . - +, '! •\� _
during sedlmam ,moat should be rNegsubd enmeduleY e) P,evem Willson -
A. - j ,L-rI':1� r-T�1"JtLL Bc CGIiS T.'<JCTED
COSTS -
_` _r .a,
- D AT ' 'V 'il "lAXWv A
TOTAL MAINTENANCE
-
r c " `I A. T rI A `JL G TA r;'.)A1 A +Leila °.TE
WAM aton baste raves catty racently, cons mete widespread use In the Washington
G ,, L i:.i� 1%'`Ui- J EROSION JV; LL BE
region. and cornequrdYy, nave is very Me der on wduch to base namnancs
-
. j.L
A P ,,, - l `i _D rN� A. `<EA�
- cost pro)ecmns. Fbwevr. axhca is rouene and ron+oulma mrr,ta iafice tasks
_
A.RE DESIGNATED
lot ,t"trauen bases appear to be similar to those allocated with conventional dry
•,'� A --� [---. F L. EC7,O`
detention ponds. A y be asonabla to assume that annual rruslenarsce Mara
_
J s._C., IL_l"-,s. ":J PJ PR'✓BUSED PKCjVES
(foubrel and nwmraubnl)*R connpsis,3-5% of a basin's initial:onstrwiton cost
vi+I •-G_AT
a .. 'G`l`, rL CIr.�\YiLL BL INSTALLED AS
(W"SMelel.f986). That should be considered an interim e0 IN opt mite
.._
eFlttiabon balm exprance halt been gained.
,
-•KAkCE .`DILL 6c
O L'sKTH MOVING
-
l JVnrw Sunmeretl agree b mom this ggad pat atovs s/waficabpna
- -
1{�, 1y1,
J TO " Z� -LE r% Tn )J�.0 -:G v OF Silt IN I0 THE
1
Signabre �..-.�.a Jj _-- ov_ 0ste Sf S'/ 9 L
Ic ".!AY
ALL IS - _: -�; L 6t STAl:3 Lic D'Wi T rt1_ N `0 DAYS
J .,tic
G `v t h` U Tu K 7 ACTV .l' BY THE
A? �q':,�p OF!1-`CRJIRYGRPLR.:4A\E/VTVLGcT^ATiVECOVER
r' A� J YJ N l J:.l" RA IONS L)I'vIHTE (SEE StEDIN„
�J Jr'L-L_,FIl.A I: Ni,
J=+�C 'CA ~
AT; t - '..'-V I
"�ErJ.I
TEf:PGFARY SEED' -)ri, IF STAB!LiZAIh f<LGUIRLD.
A -
J �. ��'
BETWEENDEC1 AND APR, 15 APPLY 1 I BS/ACRc O F
- - - -
RYE GRA-N FLRTILIZL WITH 2 G00 LLJS/r .:'E GROUND
A _v L core 'vt J� :V.EKTA,`i0[v COiJTROL PLAN TO
_
AGRICULTURAL LfNESTONE AND 750 Lc RE 10 1D-10-
-
- - -
- } -
- r ' STRAW
FERTiLI'tER, MULCH WITH A,UOD LBSlACr F A frrHORtU S
- : ,i.'t i.�i.i•:
T` _ J Cv ti gLTi ._i WITH A COPY OF THE APPRGVED PLAN TO
RESEED, REFERTiLIZE AND RE -MULCH iF L-<CiWTH IS NOT
nLP RcA_1 ,_Y lNVA _A .Lc G SI-E THROUGH OUT THE -
ADEQUATE FOR STABILIZATION OR IF AI. r AFIEAS ARE
_„ R'-'2
DAMAGED OR DESTROYED
-
CO wC' I I - GtiT 2A':CE AND SED. IEN T FENCING
PER'+ ANENT SEEDI; G. PLANTING DATE °i'RIL 15 THR3UGf1
r r -L
T E Ap J O 4.J-
NOJEt.16tR, APPLY WEEPING LOVE GR ATTHE RATE O`r
-1
AND RJJGH vAL:itiG
5Lr5J1ClJG SQ. FT.- GPT!MUty1 DATES APRIL- �! LY 1s FERTILIZE
mO`. V•ECc• A .V' I,_5R'S, r_RFORMI SECG"+DARY GRADING
WITH 0,000 LBSJACRE GROUND AGRICIJ . ' <AL LIMESTONE
a _
P[4cOR'v F ORA ` s iN 'RIVE .AND PAR : NG AREAS.
AND 500 LBS/ACRE 10.10-10 FERTILIZER •'uLCH WITH
F.
STALL wASE COU `NS AND C::F3 A•'•1D GUTTER. INSTALL CULVERT
a OGO LBS/ACRE OF ATJCFICRED STRAVV kEi-ERTILIZE THE
uA✓` Sd.ALES, DASiNS AND EVBA" KVENTS
FOLLOWING APRIL Wi TH 50 LES/ACRE CF f.,'ROGEN IRRIGATE
i G. ST, t !L2E ; tiRuE • A icAS Uv`SICE Tr E BUILDING SITE
AS REQUIRED TO!`.+fP.INTA'N A V'BRA"il L, '>iJIS[EbJT COVER.
J DAYS
h°OW AS REQUIRED FOR A NEAT APPErICE
t 1 rl v
H ti ;-_D J Ric TIC'S
ALL TE.%tPOR.ARY AND PERMAPJENT EROS 7NTROL YIEASURFS
�",
E :'_' ;^.G Gl tiJ; R TtGN BRi`iG ALL
MUST FiE FREuJE:PiT. L Y Ni�NiTORED AND F RED OR REPLAC -'
- L, P: r'3vv-✓ art - A5 I ✓ F':IS:1 GRADES. c— AB;LLZE `fill1 H
AS "jEL.c SCARY TO ti.SURE THAT THEY Cam- :• ..it- TO FUNS: tiC'irJ IN
t PI"itb.A.c-hT VFl,rL4T VF :OVER- LANDSCAPE AS REQUi REO
THE INTtNaD MANNER
rl --✓t j/F �E �.��YT F 1 i Y
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I u[ . - - WASHINGTON OFFICE �PECENM �' C
I f 4At, r '�MAY 0 9 1996 '••.��yq � t, ���r
-ass
�. - _ r Me«wede•
'Yt- -
G1 �' 3 0. E M.
L
7. - IV,. y� r may, / ,• r�
�j%✓i-�i�a1N ^ 4t' plow. /'/ 43• ..NJ /.�'n—�1'-'�� A e f �flt'Ih'Lt 115. - - _ `�% L'i?!'j �1ldT�-f
/-
f
1 y—
C LI Ll'lmo
<A 111 w r''✓.t':J� V -.t T.0 . '✓/_'.r_!,.'.r a / - /`- �./ � _ !. ` ��`• _
7
i

� rt<cT^,r�E � ua EBr, ►r ,,a? � ` �'- If� , • � � `` _ `,
1 I
_ li:is.r'T �r� t �M
` _ ' .! 1l-•--lt FiIX'.LXD V" JL �r bjF-fE e- Pll f% ✓\4� '"l� \ F a , 1 ( i a \
y0 ET15T1F.Jc ELLVATIC,B.) •i '_ ;
�-- CVUWEdri WitkJ' t ` ll � : —` N\
r.`
Yl! .1 dVl:. i (,� 3y r T I i F r \ \ _ ( •,e_ �� / J
� � . .3 ., u1'/. OB\.I.� :4 ACa A;h i Y . (: � ! _ \ � / r It �
b ✓ `,. k� OC: its YD�i
J11tTnsy'u UAINTIA}E-B \•._ .` IJr n N ! Jfr , -
,� F. - J� ! ^ q i r ,1 /•- ►, 3, •
�t�� ���" _ 1\i11� ��(' rVQ�YiQC.v1r% I �` �' ABA � - - i✓h L'-r 1. � � B4'_ /✓T /� i����' 4,l 1/ ' - -.
e 671E Div , L1V0.
/i
v.
-L !!
c "
Roub a Maintenance
_5- `
'EC %/ r"V C
ev
rM rnamtenanc�e requleed Bat irdhNnbon basins ls slightly greaten than that
1ir,l.d.Pr'. ZLA _. AL' ;. i'r.,iLL UJ. INIJ D, CZAJAW11Y LZ. needed W dry detention ponds Some of 4,e nowal maudenwrcz tasks for �/� t. / r• r+ /%7 , %) _ �' ' _ ' /
�/'• la:. r�/T/CJ/L) J WALE 1 ("4rZ/f!A%/y /r i%{j}� i �r� r/�0 /P."r%FllL 51y � � i � " / , � ���� `, n r j ! • �/` 1 -
:c _642j L Z Mutrawn Eases we e detailed below.
vii.Eit: i� 1^J iJiL JE`! Y1 lA L aLD dY INSPECTION
. b y / Q
/4. ' a
ik�
r x. * �t)k 5 Ti.: J� rr FJ"� t fc2 assess F ter nl i
EF:L 2G . W16. - The performance d 9n lnMtratwn basin should be checked after every orator \y .'\ � - &4A — '\ , to ✓ * ' 1 - 1 � ;- : � - t % 41 A - -
ssurm In the mst few menus after aonavtxtwn. Particular abareon should be pad % ). • i f - / i ' 1, l f / /1 III
: R �_ . {. d J." C.,`,L D a., F.i i.V,'iB. t?Z`� . - tobeg how rundf remains in 9v sh miure. Standing ratty In the
w swithin 4E - i)�� �/f ��
• e - _ to 72 lows alter a spin, is a good Indication that the Mhroebm upeury of the j \ j T�' i- ' L1 r•! i -,=a / t�i / I+ / - -
s.. • yT - w _t : <: i L ~ir:i ;' 1 L B A. • i i%:Li'(. lti.J i U:'`r, t; D E;fn Y I"r�i I asm mayhave been over The Inspector should look for factors which 1" i' �� G
4'S.L. 6. 18;� N ii..a-'� L..�r'-,-i# C4�` LL1 LA _ �7'1ai Y! - m'y be responsible let clogging the basin, such as upt" sad,ment erasion, low ' 1 1 ! l •, / t Cr `'• spu b (� mot• - A A, tJ / //`r - -
- _ otsew s. ONC" GMT&C on, a and marginal sails: athen get the contractor to ! _ //
me /
ats amy needed repairs. As a governments adw. kcal governmershould not / 1 - -
rake" arty rt bonds posted for a been teed the inspector Wairnmm•s that 4 is'R k C
a%L- L C . K:4 T F.EL7 tIJII ELEY : -FlE KdT1G perfotting as designed. _ _ / �, L' 1 V f
CD #cur l: 1,� : SI;iS TLNJ — j - _
IT It 2 tF I lv ' Ty :1: -.,.t F W i'li T 1,LE L t . CNiArTt f Thwetefler• the basin should be bhssectvd annually Sande of the Inure impahM \• - - / - 5 \ /i ..
W1 ' ii't& k1AL 5Frk.LT1IU Items to chea for nekdee: differential settlement cracking. erosion. leakage or-
.u..�;•a6 -11 OT L•u:`! ii FIUEi LG IlY, I -In' . tea awth on the embankment lfr condition dNe riprap in the treat oudelaM _ 1 _ �• r -
pilot chwines: sediment aeeumWin II
I e bssiru; and the v+yor and density of 1 t \- 4-
- Vegrav
�iC/ii�OLIG Gfi1tJ7S F
�eric/J X/\ ! y� /j(/ `� \ li A' • Tie buffer. skla-abpr and basin floor must be rt.rw, ed at least K a year to
' - event growth. Mee• 6 be needed d Me burn ls b be - �-.r_. - _ T -
pr 'my, 7 e*ient mowing may C / T/r TN Ti' ! G f `J
. used ea a pan" wreabon arse. %Nr �� r r��lFrEc� r/iry c. /f' -
Mownng aperaarha coney, a dhM.u4 ernc. the /- - �
base floor may urWh W soggy. N low latahnterenca She... such as f au Fescue is / A / r• •>C • `� („ - ` ' • \ { r -
} used. basin mowing can be permed in the normally dry, months d Jwe and - _
,1�
Ise s'k Lu. G.. aC;, { / .r-.'�i / G9a.l�a % i l.i) 1:4TuC[:J,'A SePlenm6er (Mal Wft/11983a)- OEBRAND UTTER REMOVAL ` ^ B yyy f _ X ! r -It,' ` hl
lit/f n
S
Trash wa! tend b collect In fu4-Infilbltfbn basins srrhu they do not nave outlets.
- - W!!itaboNdeenbon designs slue will collect trash thal migN clog C`e rise or !ow ,
1 ` - L c - • i. I ° ..c� flow e. Therefore, 4 W
is a good accremoveremove• W reall deer arid and few during _ _ - - ! - -
each mowing operation. It,7.0, {\ , A If, 4 l
i• J orifice.
/ -
• EROSION CONTROL is _ ! l
r "i:, [--i ai: L)>•, G .".,� LL. 71::u;a:.FT. - i 1 �� aL! t rA ! /'` \\ /. A/`
This b •wry anportar4 rneirtt•rarhte teak enter eroded s.dinherus on adverse -
," FL• ay 1`7r. fr�2J�1 10,4 JCJ11 �hi. � / ! / ! � I J.0 r -
rW,rJ iM irmWatlon capacity d a baste. Eroding or barren peas should a � , + + I � ! .t //' f (J i � ` r � _
t all'✓`mesh , t�Ky T- F iu h5 !A JT, woredi ilaly revegWed. r( / ) t / / ` - - - - -
_ r'�'. .7f1 ( a�� j-
- �A LT. - TtWNG - r\ _ 3 . FT. J
f.'.'.'bb ai.BT. - f T��la` '.:+.1] �?' i _l-�-1 �^ 7r�� _/rr -
_. It a basin is located on marginally permeable soils, annual ar semiannual filling - / I - ! ` -
operations they be needed to mantas Wtitrabon eapwity. A rotary Wer or disc
- ,I ! l ;JC, sh / J• N r ; e r i / / f•1
I ; .'' !✓.'._,:r �O!,/ - - harrar can be used. prefer" in the late wrnm r inrac':s When sour permeability - :� • ^ . J� J
likely b be de lowest (heating and t ui wnof the aw in the winter and spring t'v.i
!�
ls / ` r' �. / r I • _ -
months often helps to break up the sod and keep Infiltration capes. ry hhyh). -' j l , il• `J i t _ c~i B -
i Tlied Neese should be annred+teiy, revegeh Wit b present wgv:xn. - a i
r ?L: T {Jt'f -
.,l-
C,
Non -Routine Maintenance ( ' - - ! ')J C r - .,1:-J
P.AL STRUC rUREPRREPENT (c`
AIS B REPLACEMENT
M the basin is of the HWabondebntan basin design. iM pipes and barrels wale
eventuralryns•dbbareplaced. Corrugated metal pipe has anescmated- f t - - - - _ L h _ -
bngewt/ ofapproamately 24 years In the held. vtharws. aoncr_� npe and other j f _ V i �' 5,G i� ,� (�- �' - ( - A h I\ - .
-
:. c._FCCy.11; structures may test tip to50 years. Howwvw, 4 the basin Bs desy hod for fug
C - (�' t F- : - .T ::1-Ew(:it::l J' - axfiltation (.e., no ouW1 ape from an earthen emaryancy splrw-ar, Tan FM ( ' ,� S Z f -
trequarVy and cost d sbucNral repairs ls sharply reduced. _ ' - =. ; / -
J: "! v;1'o,:r., Yc prot-erved`.VherO ` `
v + Z3 Yee_.` -! y !
RESTORATION OF INFILTRATION CAPACITY - ri �,
i U C - (u 1 u i l V t• f i, ! - - Over feria, the or5i^ef Nfutation u:apacdy of err basin rtaan deal graduaRV be..bsL ! - - -
- _ If the Modem ♦ . has been museby swtau clogging (a9. sednetw d l. .ouLton ~~� !� t 1✓'-
6' it',s ,iU.,Ori. Cali
accwq- x
ed
or tocompaction).ep on). detilling can be used sic b,eak up the clogs d suitau \L' i -
�, - layer. idlowed by regrading and leveling. (Md WRA 196a) wNge is that Seep - - Vi
r..,� a ..,I`i -.�.`. u-.r -F i•:JLCr!ai5 tlkng reyWneeded everySb tO years.tiwme nsbnps, sandorurSWIM
_ - matter c in be tiled iMo the basin soils to restore nm4ranurt capxrry as will[ a a -
r - r -r,� �' . h r:•!:: ^
�t.t ndxld':, i]nd basin still experiences chronic prodsemwith standing wade eve ti,ae ieaswe ;'
r> o, Count A
- 4 may Then be have been taken, 4n•eessary to inata6 D•rforaledunderdrams benea7h she balm bis likely that tf� original trifiltiation "paciry was � ^', I r /� BC . `J f f! -r- - _- u_ - ——_-•----h- t ,i , e _ — -_ _ _ i ,
;5 required prior remove the wrcess welar. _ - ; ,.'-
C
d t-t lA tl -i::.; �tj SEDIMENT REMOVAL- ]E-
Yl
,r
r`�=;' nc; a
shall—
_ n a Inntrabon beams we normally iovied n smaller residential wevsrWs that do r;•% F t 1� i_�'..'1 e-
- tU V; V ai IIts Of 1 c land - not generate edge sediment beds. or we equipped with some Iced d sediment - - - _ - - . C n -
t bap. However. even though sediment laws to the basin we bt.!y b be love, !MY �Y ' 3A ZZ �_ ✓ j yy Gl-/ S c r
- wall she have a rh+War+ unpaC on Wain p►rformancq awhce v`.h a.dnmhar4 61� � �
,...-�v.'. ,i,nj fo. FI ai�3fGrJUS -deposits wN reduce the storage eapacty reserved ter e#iltaeonaM may also ' IS ' ►�-
1/. � � p I i �t���_
. i .. .=i s F.. _. :..O":•1F tiV:ii r A.D.A. seeaon �9 m. audae. awe. `1/ - ( V r '��_ i—_ f �Jr _ @ar�1�t 7. q, - ' �c-c. t S_GYi a N c._" o� -
( 1 /l L
-' r r ( S `)L ��l T' �.'•N,h it3 .1: l e.,+a c If A
Sediment ramovaf methods n nhluapon bastrrs we different Ro,a those Whaled for ' / _ -
C wdended detention and wet ponds, Removal should not begin wh9 the basin has _ / t- t� -� f l I - _ .n r T� ' �`\ / ) - - -
., - - had a chance blayer , i T'
!fa'ow3RiY dry out Mvtwatlty to the Doerr wNh.r. Pea by / '• � r ♦t ..' r.0 n r- !,:., t E i •-!F •, -
1 .J. {, r •. ! r
.:'r C:. u ': i� •.t:.^:,Uv. - begins to sack. The by tpw stwuW then be removed Mr +c�`pnhemt. lktM r - h:1 / - :rl `Cf rm; P�"j /.1-(1 T"!l: - -
r - cane not b c the loan moor. The remar aw rm hen W ' ' I 'Ci, r fv ', c sasseeeetrr
died wmh a rotary efbller disc harrow to restore inhalation rats, Nests drsiwbed ) / ry ( 71 `! `,, 4 ,�\; r / i (4 f i II
Y.:_ - 7 r(} : 11.t ` ekes CARD seer; l e !
J : E-, - during sediment removal should be lev"Larted ernediaely b ue.ard erdaron. - ' 1 / l//�r�+. i�t J: _
A. A _ n': fu'ra.LL L CGNST RUCTED ' _ `) .)') !� % -
_ _ _ - TOTAL MNNTENANCE COSTS
�c_..� nuINGTON�OFF\CF
;' _.�L'r'�c \'-' =J AT a -,) �.t la X:',1 JfA , ! iwi: I , �T�-_ \� r *�p..w�� .'�-d WA.Xh I� j•'4-
-T_ t� E (11'`! t�i:.B tft-l��'I41.�-
_Y._ .�"r �r.� �YNAT .iti- Vc`�L ATIhi^'A-rr �UC.,t nfirbatah basins haw only recently come into wdssw•ad use In tle Washmgbn-
U F-.�, ti l- i :' .:)C. J i -lOSIU v W -,' L E,-F region. and consequently, Uwe is wry III data on wench b bee rmanwance �
T -n -rti P ti �A. cost Mopcbona. Fbwevw. since the toubm and nanloutre mwuenarhn hsb ! it t �� �l 7
AS-"':\.,lr\�.,
A Y'y
for mfiftrabon basin appear b be similar to those associated with wriventioral dry '� ��_a'-If \ ~' t ! - 'Q M•
--I- -I
H B \ \ O. a ARE DES GNATFD v .
-.. �,. T T. 1.'.'y A' PROPOSED PROM:: detention ponds. 4 may be r•sonahre b assume that annual e" nice trams ( t _ - r 1A s� 1 r % �
e� +°
F A t_ .J - ?:` F v - ., (routine and nun-rdubrat rail comprise 3-SX d a teem ■ scam mires .
j. `F 1-..':. A-),.r -ONJA F-.iCING W-LL E.t-'NSTALLED AS (yviagandetal.t98e). TMashouWawnsdwedantnwmeslaatouWmwo ? `.� - - - -
tL r.-1 S \� 1 '4- `.-,/1 .l Meeeaaeeoac°
ufi4rabdn basin mtinlerunce experence has bon pulled.
d.-
i.. CG 5het- -ai^- rNTr(t+\n.-.. `."h! C BE - ( - ' �� ( _N�
u
' C.' 7',a,�:
't..v:ti arn.-R E` E:::7 vtAhcTH MOVING Lmu Jnw Smer ne4ob ( ble /g
mthn Wiron ol+d abode sp;dtcaepns. f ' % - - -
ZF { IN'TriJJUCl;Ot GFSO,' INTO THE Signature __"A • .- A $' (, - - 1 - - _ -�- 417'
- - - -
' AD.i .v _. 4.v... O= ;•,pY I , -
J D. ALL J n c A-.v. V t L E: JTALv L.ZED'rVITH;%' 30 DAYSIt
Jr G.-_n`J- J:.:Ta,:cal-�;DACTVITY BY THE - _ 1 (% C7a �'' \`w1+(` aJ�,t.4JJ a� `
ga�"�A,:ON OF T� :�GRARY Gin PI_R:`AA:1cNT VEGETATIVE COVER- ( tY4 m IN ,� 'a,e 1 TiC[ricJl( !i➢: �- �• L. '�:'1 1/ " _ -- - -
AS ATI "DN -1 IJ RATiC�:S DICTATE jSEE SEEDING ~ �: �t'C// - / • NJt iflC 1 5� /� % J�T /n /- �✓ •�` F
jEED NG 5P� CIFii.A 11ONS, - - - - - ' ;` / ! J J /~-
t w,.S Z�\T: \ _vUi'.CE, A -1E1MPclr:ARYSEED'NG, IFSTABILIZATty. JtGUIREJ, l� (/Jo �� G 2 G /_ i� G/% -•t�
GLTNJEEN DEC 1 AND APR, 15, APPLY ' 1 B_JACRE OF �� `OZ I t h C]L_I L_L'�T�t
RYE GRAtN FERTILIZE WI fH 2 G00 LBti;AC 2 GROUND /� \ 1 1 a �/ _
—_^. w
A, SO'_ `,3—.ONf DED:h".ENTATiON CONTKOL PLAN TO AGRICULTURAL Lit:ESTONE AND 750 LE='y;:RE 10 10-10 '�� w �° _ ( u "L fit w „' t c ' r f /
\,- r FERTILIZER. MULCH WITH E ANIQU 75IACRE A".CHORED STRAW. ' �� _ "�.£ 1 /t" L 4Tq �<; i� rY `��!� :- f i��r
F n :V:D CO:. .Y :Gal WITH A COPY OF THE APPRUVED PLAN TO h('2 n/ / OUT RESEED REFERTtLIZE AND RE`AULCH IF C HIS NOT-
v n= P7 RSA ' AVA A LE O": STE T ROUGH \��1
ADEQUATE FOR STABILIZATION OR IF A:.YA FAS ARE /hF
T . NL't"�+v r a ^
vim` 'r:UC �, DAMAGED OR DESTROYED
C'O nvC': } NTRA:vCE A.`JD SED,%TENT FENCING
L. .- - n
B PERMANENT SEEDING PLANTING DATES ii' flL 15 THROUGFI
rER Ao E PLAN NOVEiA6ER, APPLY WEEPING LOVE GRA`_S AT THE RATE OF T
3 f 7 `_r - CL P--' ,N ANO RID UGH G tAG.'VG r. _
SLFi(1000 SQ_ FT OPTIMUM DATES APRIL 1J_Y 15 FERTILIZE
�E', ^:' V . A E :JcbZ'S, PERFORM SECONDARY GRADING WITH .1,Oi:0 LBS/ACRE GROUND AGRICIIL 1<4L LIMESTONE /
} F PLF C'n V Fi v " \G iN DR'V AIvD PAR CIiaG AR AS, AND 500 LBS/ACRE 10-10-10 FERTILIZER 1. •LCH WITH ! -
:ji ;ALL EASE t•\..RSE A. 'D CU1,,3 AND GUTTER, INSTALL CULVERT 4.000 LBS/ACRE OF Al,1CHORED STRAW :E•-ERTILIZE THE-
_ n A ,J . " = S. at ,+mac SV: ALES. 5,A, NS AND EMBANKMENTS f
FOLLOWING APR!L WITH 50 LBS/ACRE C -ROGE:d IRRIGATE
G. 6Tr+_.L'ZC D:.:T1�RcicD RnEASOuT_r�DETHE BUiUD;NG SttE - AS REGUIREDTO h1A1NTAtN A VfBRANT L �t.U!StENTCOVGR.,
r'v .10 DA ' a S FOR A NEAT APPEA-T; :CE t
:.( J r;--' h--., - - , MObJA REQUIRED r
H u-.',, ti 3_' J t. �LCT C'd ALL TE'�1PORARY AND P!TR.MANENT EROSI'• i � ITROL MEASURES
BL DING CONE RUCTIVN, 9RiNG ALL t L N�
i MUST 6F FncGUCNTIY h1ONITORED ANI" RL% .FD OR REPLACED
L•.'B: "'r(O J_D r^t=A;, TJ Fi'tiSH GRAOL-S. STA2i L'Zc WITH - - - - _ - - - + _ _ -
AS NECES;,ARYTO INbURE THAT THEY CG'-: ; t= TO F'J:4 IiC FN J C tL a • J +
pc t k',ANENT VFGFTATiVF C•GVER. LANDSCAPE AS REQUIRED i r
Cl`tE cr`rk Uh" FL"+CiNG THE INTdtvucp MANNER

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rt�'am UT AMDfnals 1e. ass ee.rr 1'JibL
l 1. All lighting shall be in accordance - -
a with Dare County outdoor lighting
zoning ordinance. -
2 All signs shall be in accordance
- with Dare County zorting ordinance t
13. The site shalt meet the buffering -id
.4 - requirements, off street parking L, f
requirements and loading -requirements -
of the zoning ordinance Existing"
vegetation shall be preserved where
i possible.
4. The General Contractor shall verify ntd[su
locations prior to construction. Call
14=0-632-4949 �y I
5. All construction methods and materials f
shall conform to current standards and 1-
specifications of Dare County. A W
preconstruction meeting is required prior
to clearing and grading W
6_ All unpaved disturbed land areas shall be
# stabilized within thirty (30) days of the land
disturbing activity:
j7. A_DA. detectable warning for hazardous i
vehicular area must comply with A.DA_ section
429.5.
8. All parking space to be striped and oneway
1 _ arrows are to be painted.
l
` t SOIL RROSION CONTROL MEASURES;
A - ALL EXCAVATIONS AND EMBANKMENTS WILL BE CONSTRUCTED
' WITH SLOPES MAINTAINED AT 13 (V:IQ MAXIMUM
g_ AREAS NOT PROTECTED BY NATURAL VEGETATION ADEQUATE
TO PRECLUDE SIGNIFICANT WIND INDUCED EROSION WILL BE
ENCLOSED BY SEDIMENT FENCING AS PICTURED. THE AREAS '
ANTICIPATED TO REQUIRE THIS PROTECTION ARE DESIGNATED -
ON THE PLAT. IF THE SEDIMENT FENCING AS PROPOSED PROVES �\
TO BE INSUFFICIENT, ADDITIONAL FENCING WILL BE INSTALLED AS
�.- REQUIRED.
i C. A 17 X 50' GRAVEL OR A.B.C. CONSTRUCTION ENTRANCE WILL BE
i CONSTRUCTED PRIOR TO COMMENCEMENT OF EARTH MOVING
'ACTIVITY TO MINIMIZE THE INTRODUCTION OF SOIL INTO THE
ADJACENT RIGHT -OF WAY.
D. ALL DISTURBED AREAS WILL BE STABILIZED WITHIN 30 DAYS
OF CESSATION OF LAND DISTURBIND ACTIVITY BY THE
a APPLICATION OF TEMPORARY OR PERMANENT VEGETATIVE COVER
AS SEASONAL CONSIDERATIONS DICTATE. (SEE SEEDING. tP<
s SPECIFICATIONS BELOW j SEEDING SPECIFICATIONS,
CONSTRUCTION SEQUENCE A. TEMPORARY SEEDING; IF STABILIZATION IS REQUIRED,
_ BETWEEN DEC. 1 AND APR; 15, APPLY 120 LBSIACRE OF'
A, SUBMIT SOIL EROSION/ SEDIMENTATION CONTROL PLAN TO RYE GRAIN- FERTILIZE WITH 2,000 LBSlACRE GROUND » Ml taj2 1(
AGRICULTURAL LiNESTONE AND 750 LBSIACRE 14t0-10-DARj3
S. PROVIDE COUNTY.
CONTRACTOR WITH A COPY OF THE APPROVED PLAN TO FERTILIZER, MULCH WITH 4,000 LBSIACRE ANCHORED STRAW. 41.11 U0 R
BE KEPT READILY AVAILABLE ON-SrrE THROUGH OUT THE . RESEED, E FOR
BI AND REMULCH 7F GROWTH IS NOT
ADEQUATE FOR STABIL1ZA710N OR IF ANY AREAS ARE. 17-�1
- CONSTRUCTION PERIOD. C►� �-
C. INSTALL CONSTRUCTION ENTRANCE AND SEDIMENT FENCING DAMAGED OR DESTROYED. "
PER THE APPROVED PLAN. B. PERMANENT SEEDING; PLANTING DATES APRIL t5 THROUGH
[ D: BEGIN CLEARING AND ROUGH GRADING. NOVEMBER.-APPLY WEEPING LOVE GRASS AT THE RATE OF
E. REMOVE VEGETATIVE DEBRIS, PERFORM SECONDARY GRADING. 5LB/U= SQ. FT. OPTIMUM DATES APRIL-JULY 15 FERTILIZE
r. WITH 3,W0 LBSIACRE GROUND AGRICULTURAL LIMESTONE
F. PERFORM FINE GRADING IN DRIVE AND PARKING ST AREAS, AND 500 LBSlACRE 10-10-10 FERTILIZER. MULCH WITH
INSTALL BASE COURSE AND CURB AND GUTTER, INSTALL CULVERT 4.000 LBSIACRE OF ANCHORED STRAW. REFER 1 ,JZE THE
AND FLUMES, SHAPE SWALES, BASINS AND EMBANKMENTS. FOLLOWING APRIL WITH 50 LBS/ACRE OF NITROGEN._ IRRIGATE
G. STABILIZE DISTURBED AREAS OUTSIDE THE BUILDING SITE ' - AS REQUIRED TO MAINTAIN A VIBRANT, CONSISTENT COVER _
WITHIN 30 DAYS. - MOW AS REQUIRED FOR A NEAT APPEARANCE.
H. BEGIN BUILDING CONSTRUCTION. ALL TEMPORARY AND PERMANENT EROSION CONTROL MEASURES
I. UPON COMPLETION OF BUILDING CONSTRUCTION, BRING ALL MUST BE FREQUENTLY MONITORED AND REPAIRED OR REPLACED
UfjtMPROVED AREAS TO FINISH GRADES, STABILIZE WTM NECESSARY TO INSURE THAT THEY CONTINUE TO FUNCTION IN
AS N
PERMANENT VEGETATIVE COVER, LANDSCAPE AS REQUIRED. AS ECINTESSARNDED MANNER.
REMOVE SEDIMENT FENCING- -
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