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WPO201800033 Plan - VSMP WPO VSMP 2019-04-11
Purpose of This Amendment 1. The purpose of this Amendment is to extend Drillers Lane, construct building, parking, and Storm Water Management Basin on Lot 2. The original plan was WPo 200800037• 2. The limits of this amendment are shown on Sheets C--401 and C-402. 8. The total area of disturbance for this amendment is 2.05 acres. dt`m: i f r 1 NNW now 1 Jown �s 7-0 q ti� r �f� •� N:3939 23.14 „f E:11484%9.00 IF2.78'SE j� T d3100-00-00-010B0 '� 8 BAEYERTON LANE JOPD DOFFLEMYER ' ,s t qB 4543 PG 436 ,'� ,3 ' I `� f 1 IZONED: RA r I d r is 0 �C' t o���cS�': �. IS��rr i S C7 IS �r� tr �� j�,� '0' IS rtr fr,`r rr r� IS 1 t- rr' N 37'4D'jjW_ -3—a_ SF TMP 03100-00-00-021FO I Earlysville Volunteer Fire Co. DB 1666-71 j Zoned: LI i TMP 03100-00-00-021A1 4F, LLC DB 2037-437 a 2oned: LI 7 'y 1 j J_[T &g :� s d 1 N 56'48'19" E 3'0 ,47„ W 11.73' "'j � '•1 � J i it � d , a P 1! N 46°15'38" W 291-32' , 0� - i 9 s<� ---�,��, d � 1 t 4 I I , C ' d 1 it r CURVE ARC LENGTH RADIU'S DELTA ANGLE CHORD BEARING CHORD LENGTH C1 194.15 666.59 16'41 15 S 67059 24 W 193.46 C2 200.25' 1537.17' 7027'51" S 56009'42" W 200.11' C3 278.86' 185.57' 86'06'00" N 33009'11" E 253.35' C4 205.15' 168.93' 69034'50" IN 23'20'46" E 192.77' ?01 sass„ Land Use Table Description Pre -Development % Post -Development % Buildings 248,256 19.8% 256,256 20.4% Paved 261,525 20.8% 278,354 22.2% Pervious 744,747 59.4% 719,918 57.4% Total 1,254,528 100.0°l0 1,254,528 100Af ~ ~ EMOR ON= r o TNIP 03100-00-00-021DO 4F, LLC Refer to Sheets TUMr. '�'� "�� +r ....,,r „r sum DB 1804 PG 200 C-401 RESIDUE OF Refer to Sheets >~. wMWI�104f26 RWMWM A WAREHOUSE C— 410 j TMP 03100-00-00-021AO C-- 402 —� C 395 REAS FORD ROAD BUILDING 10 4F, LLC C--411 DB 1804 PG 200 DB 379 PG 223 PLAT C` J 1 1 cn A = u M = JZONED: LI t � a t j t t t t t t r-� AREA A i A PORTIONI OF PARCEL 21A i HEREBY DEDICATED TO PUBLIC RIGHT-OF-WAY jt 1.467 ACRES t .79 - I S DRILLERS LANE _ 40' PUBLIC R%W __ r r IS S 39'00'37" E 358.41` NS LOT 1 S 39°DD`37" E IS SHOP & 1.393 ACRES yS '� 199.54' N:3938924.39 GARA ! � LOT 2 1.387 ACRES E:11484670.61 BUILDIII OFFICE BUILDING i New 40' Private N31°5D53, PARKING 77' 6 FORD ROAD r` am 1 W PG 486IAN E. E r own now ED: RA TMP 03100-00-00-021BO ~ 4F, LLC DB 1804 PG 200 ZONED: RA �.►� � � „ess Ease17� 1 LIJ PF f�S N 40'38'25" W � - 80.18' PROPOSED —' I S DRAINFIELD' INS C}y 40' Is 7 ISM 8 3—is 413.88' PF IF '. I S is N 44'00'35" W 536.76' N:3938577.59 EM MM E:11484700.32 ~ i 50'x40' TEMPORARY i� XMM _ ACCESS EASEMENT TEMPORARY TURNAROUND TMP 03100-00-00-021CO 4F, LLC TMP 03100-00-00-021KO DB 1804 PG 200 THOMAS J. MANCUSO OR ONED: R CATHERINE A. MANCUSO 1 o0Z � 100' 200' 300' DB 1864 PG 665 ZONED: RA SCALE: 1 "=100' WP0201800033 AMENDMENT TO VSMP PLANS FOR EARLYSVIILE BUSINESS PARK TAX MAP 31, PARCEL 21A RIO DISTRICT, ALBEMARLE COUNTY, VIRGINIA SITE DATA SITE PLAN NUMBER: SDP200500144; SDP200800081; SDP201500012: SUBDIVISION NUMBER: SUB201700197; SUB201800040; WPO PLAN NUMBER: WP0200800037; WP0201500083 LEGAL REFERENCE: TM 31 PARCEL 21 A PARCEL ADDRESS: 395 REAS FORD ROAD EARLYSVILLE, VA 22936 SOURCE OF TITLE: DB 1825 PAGE 109 OWNER%APPLICANT: 4F, LLC 2885 EARLYSVILLE ROAD APPWV�D EARLYSVILLE, VA 22936 1 thc)Al tnarle Couri1y LI LIGHT INDUSTRIAL Date y b�v i00mant D Pmrlmotlt File � i-i ZONING: — AIA — AIRPORT IMPACT AREA ��M1? a MAGISTERIAL DISTRICT: RIO BUILDING SETBACK: 50' FROM PUBLIC RIGHT—OF—WAY 50' FROM RURAL AND RESIDENTIAL DISTRICTS 30' UNDISTURBED BUFFER ALONG RURAL AND RESIDENTIAL DISTRICTS PARKING SETBACK: 10' FROM PUBLIC RIGHT—OF—WAY 30' FROM RURAL AND RESIDENTIAL DISTRICTS SOURCE OF BOUNDARY: PLAT RECORDED IN DB 279-223 SOURCE OF TOPOGRAPHY: AERIAL SURVEY BY LOaUISA AERIAL SURVEYS ON APRIL 10, 2007. FIELD RUN SURVEY BY MERIDIAN PLANNING GROUP, LLC. ON MARCH 8, 2018 2—FOOT AND 1—FOOT CONTOURS. SWM VOLUME CONTROL: STORM WATER MANAGEMENT BASIN. SWM WATER QUALITY: PURCHASE NUTRIENT CREDITS. PUBLIC WATER SUPPLY: THIS PARCEL IS LOCATED WITHIN A PUBLIC WATER SUPPLY RESERVOIR WATERSHED. '11� ) :P SITE 4 a 7 N 2 VICINITY MAP c-4a SCALE: 1 "= 2000' LEGEND PP POWER POLE SCC STORIVIWATER CONVEYANCE CHANNEL ---�-�-�— BUILDING SETBACK -o----°--�— PARKING SETBACK SHEET INDEX C-400 ......... COVERSHEET C-401 ......... EXISTING CONDITIONS & DEMOLITION PLAN C-402-------- EXISTING CONDITIONS & DEMOLITION PLAN C-410 ........ GRADING PLAN C-411 ........ GRADING PLAN C-420 ........ STORM SEWER PROFILES AND CALCULATIONS C-421 ........ STORM SEWER PROFILES AND CULVERT CALCULATIONS C-422........ STORM -WATER QUALITY CALCULATIONS C-423 ........ STORM WATER VOLUME CALCULATIONS C-424 ........ DRAINAGE AREA MAPS C-425 ........ NUTRIENT OFFSET CREDIT PURCHASE DOCUMENTS C-510 ........ EROSION PLAN C-511-------- EROSION PLAN & NOTES C-520 ........ EROSION DETAILS C-521 ........ POLLUTION PREVENTION PLAN b, PRESERVED SLOPES PER GIS NEW FULL DEPTH PAVEMENT 00 04® �. v o W w 5: m m m z < df O wr z # >i .. CQ �►CQ.. .. a P _ r • i i i Qj ROM W Q N 4N o � F_ z � w O 0 0 ca to w z z D 0 0 ONE I� 0() Z w H Q W d� z > CD Li f2) U - z L;-i U 7� -c ~ 0 w w a. cry SHEET NO. C-400 1 PARCEL OVERVIEW —40 SCALE: 1" = 100' a■ 7 •i R �jj --- `; r ,tr � 1 1. ,' �� /�" I I' � ! � � ----- •.- ...,,.,,, ,... t ! � � >.- � _, /// / , r / / // // re JJ� rl f� � r,,�..„v � �% ;`f ! � t r '/"r --- ---•,_ � � I i '� � j � I r = fI a�aa y •• ------------ L ... 00 Warehouse Building rL f . ♦j / r i / / 1 / \ } ` •• ♦ i Exist. Storm Inlet l Exist. Office BuildingC ,� a° °' X\\ k U Saw—G t lane J Exist. Asphal I+�__ 1 Li �' / ,' ,,'r �A % / / ♦� Q ` \` Parking Area I x t CI,�- 1 jf Saw —Gut Lin\e o Exist. Asphalt z z Parking Area 0v 0 Exist. Storm Inlet Exist Pavement, - Curb and Gutter +++:. 1J f — Saw —Cut Line To Be Removed) / 5 JJ I J�+ / ! / `�� ° 1 is Disturbanc 3 } - C - 1 0 ) �� — --- -___— xis` �` CL 1 ` l � Saw —Gut tine Uj CJ tij ULJ ! u') SHEET NO. i' 94 ' / 1 30' 0 ' C�401 MIMINIMM-1 M30 60 90 ANor __j �0 :71 SCALE: 1 "=30' SHEET 2 of 15 i.e. � / 24 Of 'XI • • i4� E, .� r: � f J `.--�--1 �' Existing Level f } } / i /Spreader t r► H � LY YC8 !71 co / // I;it6}4i J -� f / /W�4 co z 1 j � � / / r. _._.\ lr--....,.,�--,:.: /_`__- 1 /% / i i i i i t i ' i !, % / ,,/ � � f/ ` � �.""".� t(•��, � 54 0 r[s. ra�} a i xxx u x iu/_'i / / //, �✓/// i/,`/(�� xxxxnxxxxxxx/ / I \ i '+.` .., 11 .y i i } r .. ,.l � 1 .-._ / 'Jxxxx xxx xx xxxx i / r Y k t f 1 1 // dill/ z Qj X x x / ! r / / t i i 1 + t t i I } i i i t i k t ' ` I t } ii } t t i i ,. r ^' � / / J � ...- ~� � (, 1 � / / / J/ / / /' f � •---_ --..--.- \`�., c / ✓ I / j / x x z x �� % x ��.) / /, / / /' /'J i�-_-'-"`_ i i , f / � '' � 1� J � \ � � t � / / � D //� _ --56 — ..,.. _... ,.,., ,w —.... — ...+. \ \ ` \ ` � . ,\ � \ _ 5 011 CD Ld x, Exis� Trees 1 \ \ ` t {To Remain} t X Xrck X X J ' z -7 \ d \l '.+. „� ` Ld W jl r- Exist. Office � t � ` � �. ~ \ \ � � ,/ � � \ X X X � X� � I Building \ X X �_ / / ' '� - - - - ' %J _ `� e Ran i - - - - - _ - - - - - 0 0 X X LLI X\ X X \ ` X / _ - _ Exist. Sediment Basin ,' r t 1,. (��0 6 - _ \ 0 v ii \ \ \ ,\`` ` X X X 1 ` f / r To Be Abandoned} Saw --Cut Line--------�� \ X ' X X �X _ ! X 1 \ f t I� \ Exist Pavement, I _.__ li ! ` , \\ {To Be Removed \ 1 1 \, t \ X X X X \ \ • ". _Exist Channel `;`; `'``\\per``\ t v 5 _ — --�—�_ — �I \ :X \JC `" \ X X\ X�,/r a \, Q \'\ ` M =' l - ,_ X\ X' , l X \ \. \ X \ X \ : - l l Existing Riser a X `: X X Structure 1 - r/� ;� f �� t�i i-+-�i X X ` \X"\ \ Exist Trees X X k \ \ _ / {To Be Removed) \ \ 3 (To Be Removed) ' rn Exist Pavement \`\ \ 1 i X 4 \ \ ! X 1 X X X , s �_ _ — �," Exist. Pavement I \ \ , ` \ \ \ `X To Be Removed ` \ \ X\ \X \ X (To Remain) i () \ X \ \t X \ \ \ \ \ , \ I \ X X X X \ X \ 1 J \ X\ 7� \ X .� _- �, \'' ---------- -- X ., X X X i t X. fi. Exist Trees X � Exist Tres f I �}` �r �` - . E� kid e ems _ e R oved 1X;1X \ X� 4 N - _ - - - Exist -- X X X - X Et T - - _ X X X (X >t X _ - - - --\ Exist Trees - -- - - ---- — .__ t , / ! X _X - X _ X-- _ - _ \ \ ` ` ~�' '` (To Remain} __ _ -- — -- -- -- �- � _ � '`' �``` ice" -- - - Ex! t Trees I �' _ ~ ` _ _ - - - - U) (To emain \ \ t ``-_-'ter _ -- - i,; � 44 - - Ld . `\ \ SHEET NO. 0 30' 60' 90' 2 30' C -4 Q 0 0 M M M M SCALE: 1"=3Q' SHEET 3 of 15 9?RO� 0)1 , y r 0� j 0) t i A4 1 R� • .E dk rA CQ CQ U CO Pi Warehouse Building r co } I Aj ,� , ew If Im ! r ,- fly, ♦ \ �� r ! \ --- o� _ r f � '`�. 1 ♦ ,, \ It 't Exist, Storm Inlet Exist. Office Building C� ,.. ,., / Sin r, 1 j J \ 1 J ' halt V— LLJ Exist. Asp i 4 -I / -Ad y �'• \\ f `, Parking AreQ R z _ f / / ! j ay , r.� \ j — — .,.. — .,.,.._.... — ,........ _ — — _ — — 0 B ear Variable Width Private 0 0 Drainage Easement w X ` / / f i► �`x �� ♦ \ \ \\ J !4 / II Exist. Asphalt % 1 - Parking Area Exist. Storm Inlet j (I 0 0 --- 2�; I( !j 1 r New 20Public/ 4�` ♦"� o i j Drainage Easement �� / �� \ \\ ♦ \� / it--i rjfj �. ji s-cif Disturbance New 20 Speed L. #sory _ __ __. ____ __ __ _ ____ _ _ a __ ___ Ij _ _ _ — 28' — zcyc \ , ` 1 / — — — Cn — — — — — ._ — _.—_ — — — — —-------- --— ------ \---------rrlS� �,C7` 6 ----- Aublicrs Lane \ Ld ------ ---- —------__— —»- -602' _ _ ---- -- -- -- -- — -- 0 -✓ ~� _ - <, \ New 25 MPH r _ _ - E—, � Speed Limit Sign % •. j / / J AR-1 600 LLJ W tLj i Cr f G SHEET NO. 30' 0 30' 60' 90' C�410 SCALE; 1 "=30' SHEET 4 of 15 l 1 � ,j " Y -� ' * j +tr F� E! ! aR tt i f / // (xisting Level / l �, Spreader/ � % J / �� / Y f t 7 7 t / � � / 1 � / , � F'----1 F� / / \ ty} -' ! �40202 C:3 ii J •�l� % / r i ` \ \ * i /� /% k i 1 k l 1 % f % / , % k-Dk to ;mob r4'.4 40 xxxxx z / / /��?k n z � xrx x xxx x x / / � *i * t r t - '"_-• __'/ / z t 5� New 15 Public SWF-i Access Easement 4 t `'� t \ � /�.A / f,(� � x x x P {�yx x x x �� / !' / r / i / a• / i r r 7 �( 7 }j , / / z \ \ \ ,'` ,/ � / � � x / •'' z x �\ � �'1,� % % x f r tp 7 i 1 i -� J 7 i 1 7 � } t 1 1 r. ,. "•i /h .= � }:l ( i/ '-._.-- `�t � � / / / / �- /' \ ~ ``-. �\ ,%�/ m / / ' x x � "",xxx ./ ./ ♦ � i i 7 i � t i i i t �.�,"'+' i .. -\ 11 f �, � .,, + 4 / / / �' ..... \ \ '`'-_ --•~ ... ,.. \ ,�' / I l i x � x x 1�0 A; ~ \ xxx xx d i / r��✓ — - J % / /'° ' r / ��� /"`- /m /` / x New Variable Width New 40 Public SWF ` - Y /`ok Cv i / /' �_ Facility .r^Y'' &» • * ,r .\'' 4 _ Y / » ; `j , // % - as \ Access Easement is• /' �.. Y », ,�,.s 41 yl� ` \ \ \ `\ \ \' \`' \ '� \ `l` ,ram. "''..• ' i t '° // * / f / / ` __- '- - � / / / J / / TC 574, 574.5 CD 1 'x25 �\ 1 I ' I-�552.. \ \ \ \ Concrete A 1 ! ---cumpeter Paoing — I �, \ \ / (t �' TC 578.+i0 \ \ I J' I J I rt Sk�r2C5 - - ✓ - / _�.5 _ J oo (M LOT 2 } j ,j » (To Remain) / / / Z U1 �. t j i 4 acCurb 5u t \ ~' \ - II r. ; If t / l •\ _ _ - ^ ! / r — _ - 53 -- o �,�^^-'�•.�,, y� !+t `\� .fir � � \✓ i:.,,..ti • =`�' ' ` = � x a - '�!' i �c�/ l / � \y * - _,.---- ''+,...1 LOT '•;1 # � �S --{\ \ 5 •���'!` = �' � ,�''• °;"..k� .Y�' at• � ` � � j~`` � J \ Y l .— _ i'-� - — --- — -� � ' //' `', r/ ' �. i j i t� . 0_.-- �'•-- f • #'`-..' • � M �• - - / < / � � � �\ a , ` - L ' ..- /' / //f / � /- '� \ � y \ .• : t� •.r'1 � .\:� r .� ��. w / � / I i — � � r j s 4 Y i/3 i!i L1_1 tr ' '1 _ 82 '# \ \ M b76 40' ; r / s - — - - 'j - ; _ r w = �LLJjlIX Exist. Office r _ \ \ `\ r �� Y * / \� /� G J u - L~ .G 6 Building / Knox Box shall 6e groria L \ \ C / `. 0 O e' t \location to be coordinated \ ~ \ 1 \ '_.' '' _ l i -_ 0 0 I F •�,� # �� tfre Morshd's office\, \ \, 1 , ` t ry * �_,1 �.._ /'"�.. \� } ` \ i�..i) }- LLJ \s ' rZt New 20 u Z New 1-Story Buiahsg- Ease —$ i \ ` — c) c) DrainageEasement 1 I \ �,, � j .. \ B,oOo SF' ' ` \ ` 4s` . Nei# � C�, , �- .�-- __ ---� / / / ,, I ' �.` `\ t', � � \ ! y \ fFE=576.00 AM-1' r / '' r • � ` �) tt f f - a it I C b86;9� $6 9$ New Variable Width y r -Y W I sDc S JJ, Public SWM Facility ''°--.. Exist Channel ' �,� Cam`` BW 575.50 New Retaining \ Easement \ — �' • \ fl : 'r -- - \ 'i\� ', t \ - . Yloil \ � 1 � ` �t `, " ` \ �\ � ,� � � %•' /' �� `.. '" ` �i -Tw 561 z wJ}{androll \ \ \ \ \ \ \\ i \ \ \ . ' / / ,', - f,r I B1Y 575.60 575.00 PVC Max Height = 6.0' IB 575.00 , - , Exist. 24" RCP �" t} New 10' \ New \ \ \ Gravel .Septic \ nro�ased tieta jonk \ \ \ y Exist. Pavement \'\ Drillers Lane {New Port i � \ \ 1 Access \ \� � (To Remain) \ 40 Public MW \ rn % / + ---_-_.------------- Exist Trees 91_ - to r p C C - — — - ---(TORemain} t - C 588.93 f 6! ©�;�� t;;� - J )66 TC 590.56 ! TC 590.56 = - -- I New 10' Public \ Drainage Easement it Trees M - _ ._ Exi (To Remain) , -_-_t Trees ` ' \ \`- { _ _J — ew 15' �\ \ \ ` \� (To remain t ,�Access EasementLLJ _. , , \ co 1 I \' `LJ \_ c A SHEET NO. ` \ _ 0� \ \ 3{)' 0 30' 60' 90' C�41'1 son I M M w5ewn—M — ' 0� ��100 1 SCALE: 1 "=30' SHEET 5 Of 1 cu 0 3-665 A-4 A-� A-2 c N c cv cv 2l ?_ c*! r: n 04 r• ca c.� rri Iry to " to.-, `r t o _ w as ao a1,r- o to to `j�o�o CD CD j H '- + -' � i~ jj ` i '- '- `� r + o°'a 11 i1 C'j if +-' '0 II j' t ao f1 +-^'f- en U ¢ n to ' - ,�, II it G v LQ :Z_ C14 II r'I II -- to Q II uo � z z � li - _ _ Exist Grade i It iiCn Uj I (nn > > Z Z Cta> rx Q I Z t i M > > � i > > Z Z . ,, i / ' I 1 _._.._.... .. I .... - -` . ,.__ _-` " -- 15"RCP � �•5� o ...._ ._._.._._ ��8.ES7 'fix "{CP 0 1.46% 07. " RCP a 1.387 70.76-�24 9j C . r . net f A-1 co 11 Cn Inc)WM Exist Crade - I 5+50 STORM SEVER PROFILE A -42 HORZ SCALE: 1 "=20' VERT SCALE: 1"-5' 1+50 2+00 2+50 J7 VU .3 1 M f 2111J `t'"r Ju JT1iV MR -" ALBEMARLE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES 600 1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (V.D.O.T.). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN. 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS OTHERWISE NOTED. 595 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL: VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED, 590 6. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 585 8. UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE - CLASS Ili. 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). LD-229 Storm Drain Design From Point To Point Catch A (Ac) Runoff Coef. Inc CA Accum CA TotTe (min) Total Ent (in/h0 Total Flow (cfs) Up Inv (fit) Down Inv(ft) Pipe Len (ft) Inv (%} Pipe Dia (In) Pipe Cap (cfs) Velocity (fps) Flow Travel Time (min) A-1 A-2 0,19 0.65 0.12 0.12 6.00 6.37 0.79 589.31 582.20 278.87 2.55 15.00 11.05 1.85 2.55 A-2 A-3 0.24 0.65 0.16 0.59 8.55 5.70 3.38 582.19 579.96 152.83 1.46 24.00 29.10 3.55 0.73 A-3 A-4 0.18 0.85 0,15 0,75 9,28 1 5.53 4.00 579.68 579.02 8.46 7.81 24.00 56.17 3.19 0.07 A-4 A-5 0.11 0.85 0.09 0.84 9.34 5.52 4.44 578.91 577.93 70.76 1.38 24,00 27.94 6.17 0.20 A-5 A-6 0.00 0.50 0.00 0.84 10.10 5.38 4.51 57758 566.50 137.0:1 8.09 24.00 68.89 11.75 0.20 B-1 A-2 0.15 0.90 0.14 0.14 6,00 6.37 0.86 582.49 582.20 11.3S 256 24.00 33.54 0,94 0.27 C-1 A-2 0.21 0.85 0.18 0.18 6.00 6.37 1.14 11 582.72 582.22 1 27,31 1.83 15.0Q 8.81 2.22 Q.24 2 1 0.14 0.8Q 0.11 0.16 5,31 6.60 0.83 579.93 579.50 1 40.19 1.07 1 15.00 1 7.62 3,86 0,18 3 1 2 1 0.06 0.80 0,05 1 0.05 5.00 1 6.70 0.29 580.30 580.03 26.93 1.00 15.001 7.05 1.67 1 0.31 6 5 053 0.75 0.4Q 0.40 5.00 6.70 2.66 558.33 558.Q0 646.06 0.52 15.00 4.92 3.90 0.28 LD -347 Hydraulic Grade Line Calculatiions Inlet Station Outlet Water[:Rise Surf Elev (ft)tflow of Discharge of Outflow Pipe, Length of Outflow Pipe, FrictionSlopeof Outflow Pipe, Friction Loss Along Outflow Pipe, Hf (ft) Velocity of Flow in Outflow Pipe, Vo Total Head Loss for the Structure, Ht FinalHeadLoss at.iunction, H Inlet Water Rim Elev (ft) A-1 583.06 5,00 0.79 278.87 0.27 0.76 2.83 0.02 0.79 583.85 594.39 A-2 580.70 4.00 3.38 152.83 0.35 0;56 3.88 0.22 0.78 581.47 587.96 A-3 580.36 24.00 4.00 8.46 0.25 0.03 4.07 0.25 0.28 580,64 590.04 A-4 580.28 24.00 4.43 70.76 0.05 0.04 1.92 0.06 0.09 580.37 589.12 A-5 566.86 24.00 4.51 137.01 7.95 11.05 11.75 2.33 13.37 580.23 594.12 B-1 583.06 R00 0.86 11.35 0.03 0.00 1,21 OM OM 583.06 588.08 C-1 583.06 15.00 1.14 27.31 0.28 0.09 3.14 0.03 1 0.12 1 583.18 587.78 2 579.79 15.00 0.83 40.19 1.02 . 0.43 3.86 0.12 1 0.55 1 580.34 1 583.61 3 580.35 15.00 0.29 26.93 0.28 0.09 1 0.10 1 580.45 583.80 - 6 568.65 15.00 2,66 64.05 0.51 0.34 3,70 0.06 1 0,39 1 569.05 573.70 LD-2D4 Stormwater Inlet Computations Sag Inlets Only tu t... N 0�,, Uri f1 v U `� t6 ao 'i' X X i'. (;j Z7 v �% N cw qi S r O U S1 f6 s-. L7 � < Cra cr 2: Chi iTi a (D CF C2. �- � d Q o � d �s � � � a � z (ft) a (ac) U (in/hr) (cfs) (cfs) (cfs) (`/`) ('/') ('/`) (ft} (ft) (cfs) (cfs) (ft) (ft) (ft) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A-1 DI-313 6.00 0.19 0.65 0.12 0.12 4.00 0.49 0.00 0.49 0.02 0.01 0.02 0.10 1.83 0,20 1.00 0.49 0.00 - 0.50 - - A-2 DI-3C 6.00 0.24 0.65 0.16 0.16 4,00 0.62 0.00 0.62 0.02 0.01 0.02 0.10 SAG 1.00 0.62 0.00 0.10 0.50 0.20 0 A-3 DI-313 4.00 0.18 0.85 0.15 0.15 4.00 0.61 0.00 0.61 0.02 0.01 0.02 1 0.10 1.99 0,21 0.98 0.60 0.01 - 0.50 - - A-4 DI-3A 2.50 0.11 0.85 0.09 0.09 4.00 0.37 0.00 0.37 0.02 0.01 0.02 0.10 1.67 0.20 0.86 0.33 0.05 - 0,50 - - B-1 DI-3C 6.00 0.15 0.90 0.14 1 0.14 4.00 0.54 0.00 1 054 0.02 1 0.01 0.02 0.10 SAG 1.00 0.54 0.00 0.09 0.50 0.18 0 C-1 DI-3C 6.00 0.21 0.85 0.18 0.18 4.00 0.71 0.00 1 0.71 0.02 0.01 0.02 0.10 SAG 1.00 0.71 1 0.00 1 0.11 0.50 1 0.22 1 0 2 Dt-3A 2.50 0.14 0.80 0.11 0.11 4.00 0,45 0.00 0.45 0.02 0.01 0.02 0.10 1.77 0.20 0.83 0.37 0.08 - O.SO - - 3 Dt-3A 2.50 0,06 0.80 OAS 0.05 4.00 0.19 0.(}0 0.19 0.02 O,fl1 0.02 0.1fl 1.29 0.19 0,98 fl.19 O.OfI - 0.50 - - 6 DI-3C 6.00 0,53 0.75 0.40 0.40 4.00 1.59 0.00 1.59 OA2 0.01 0.02 0.10 SAG 1.00 159 0.00 0.18 0.50 0.52 2.99 Shoulder Where applicable 0 STORMWATER CONVEYANCE CHANNELS SCC W D STATION LINER 1 2 0.5 0+00 to 1+43 Concrete 2 2 0.5 0+00 to 0+59 Concrete EC-2 blanket/matting shall be Model S150 as manufactured by North American Green, or approved equal. M C) Z 0 r7 tJ} 0 <C Q t-- Z Q d cs cs M _ � 0 0 Fes- f-- 0 LLd Lw cL o 0 W z Z 0 0 C) 0 Zr iV r - ------ --- _---- '' ,\ ` St \ \ ♦♦. � \\ 1 A = 0.56 Acres l`, i ; 1j 1; , � /'" `�� - _ J - - _._ _. .` I� �--� ;� Tc -- 5.0 min 'A' z l f f! (� t} ! y trs - Pr-4 i C - 0.75 11' ` f -i,F� (�,�..,..a� �--� AL , inr i N+rriW Jim uric \\ \\ \ \ \� \` ♦ \ `s i� j� lJ t 1.4 ----- y \ t \ \lam \ '� � ♦ `\ ,. j \__ , a L;j F4 SCC-1 - .68 Acres Tc - 5.0 min - _. - ~' -- _ ' C0 w C=0>50 `_ '� { _ QD_ I (To ~ - �....� - SHEET NO. Cm420 2 STORM CONVEYANCE CHANNEL CALCULATIONS 60, 0 60' 120' 180' -42 SCALE: 1 "=60' SCALE: 1 "=6O' SHEET 6 of 15 i D40 l?o dsi e:.D> ck . lculat ta:>t� Earl .svc110 Buis'inese.:Park E2fih. ProteeliLe L40139. GA. To f2 Q2 Additlonaf Ftous . Total 2Yearlf'aw Stope Allow n setest n 03 ri=,05 n 015:. , 19'0 Q1.4. Add€figaaf Total :QEP Remarks 6-TASTA DA C Inc Acc Vel ve4 Qj I 1fEL :DER :Qrl '0t_P ! ilolnrs 1Q"?learFlaw-; 5G01 0 .1+43 0MI 0,50 10,341 0.,34 5:0 , 5.5 1,86 0 1 38 0:1Qs1 7.0 O.fl lS 0,03 : 0 30 7.07 2440 2.40 :0 33 Corserete. SC�:2 7721 0 0+53 0 56 0:75 0.42 5,0 5.51 2.30 2,30 0:450 7.0 Q:015 0..03 .0:24 7:R7 2;97 1 2:97 027 Grmcrete RM 580 0+00 STORM SEWER PROFILE B C-42V HORZ SCALE. 1 "-20' VERT SCALE: 1 '-5' M 9 B-1 A-2 C-1 N N N CDCon Uico � 0 Ln LO �oo COW + t s'Utc C-, LO <M `_LI- C)C� h on Lo 4110o If If 11r� 1i o --Exist Grade 11*35'--24" CP 0 2.567 27.31'-15'RCP 1.837 M EX-2 EX-1 00 + o + rn Ln 11 C (n Exist Grade If11 {ii LJ 72.34'-15"RCP 0 0.5 7 - 0+00 0+50 STORM SEWER PROFILE C-421J HORZ SCALE' 1 "=20' VERT SCALE: 1 °-5' 595 585 580 585 I. 575 M 565 r 605 560 i 600 555 - j New Stormwater ]/------Management Basin 595 1 550 / New Stormwater Conveyance Channel SCC-1 1 2 590 st Cfl Tji) ,_ �r-+ ci LO p585 Ir a z 23Fpz Propo Grade 580 580 40.19 -15 of HDPE 26. 3'-15" of IiDPE 0 1,007 575 575 Exist Grade 570 570 565 565 560 560 555 555 550 550 1+50 2+00 nMH5 n 580 Q 00Wo co oCn + Uj C. W Proposed � IIM + -' r• 11 Grade re, I Exist Grad - 64.06' -1 HDPE 00.527 New Stonnwater Conveyance Channel SCC-2 New Stormwater Management Basin on 4 STORM SEWER PROFILE E -421 HORZ SCALE: 1 "=20' VERT SCALE: 1 "=5' `t .\ "°*+.w.y,� `,i J �,.-.. ... Lr."1 ' I I' I ` I t 1 r ! f t I { j�// // �' •r+�w+* ~\ \}'t I\ `~ // + 1+y +S'+Yl �""„� � I! � f � / "'� � { + ' 1 i l m, / { I � ay �*' + x.: {Jj��`• i Y u Y i / `� ` (/ I t'�rt 't { � � } 4 � t � I + � j 7 1 j r F T {I � / ,` sr'� ,' / / ' / �h� � �------ _.._-_'-- _.__-__. -✓ t`"'^^-."`i"y',� tt - -r' �''` t ,l {` � 'siJ t ,,-----�,_.a. � � { i + l i i { i rl �! / I{ , I t + , �•' o / rq' / /',// / / / / �" / - - --- � � r i Ylosaha'�° adln5 . } I I 4 r � \ `_ ~ - _ --_ _ - \ 1 ,,....- •- \`: � j 4 ,..,,,�, ___ _..-- .'.�r-Y`"""a / ' � ' -` - \ \ ---� `. l ' 1 ' , • � ..."- - -- -- - ~' � - Culvert EX-1 & EX-2 1 f - ( DA-6 ___ ""j + t ---\ ` .t ., \. (�- " �.y �t y, 7y,� ........±�-...r„�....w '"' j r"""w.'r'"� l 1 �'• ,. l \ YS \ \ �' \ `. A A ' 0.53 Acres Y" i�) f/ t `. ♦ ,\ t t 'q ^ ! SubBasin Data: _600- - - --� ,` ( �,,...a.--�� \ `\ ` Y ( Tc - 5.0 min j .c ��\ _ Drainage Area: 0.85 acre a i `` 0.75 C - / i i 1 �♦ - ,y ♦ �'• Runoff fficient: 0.50 �` J Jt 40 - -o /' - r��� \ \\` ` ;;l►�cT,' t'":� f 'yk.Y' / \ ! �'� _ Time of Concentration: 6.0 min /' r / • /� l ( '� � � t � � � // i-....-......... � � ..- - r........... t....- ....--......- ,-.- ...- ._....- r,. �` �� � \ \ .� \\\ � \. ~ +• \\.i. �!.'L f-3aw �'�F't;y;-*off; ��. t -,.. •• '�.. - ♦ �• �+\ •.` ...-� \ \ `t . ', ` � i \ ���'- _ +--- '`�\'� �:\ \. `\, �� Rainfall Data: - J / / 4 1 i ` j t ,1_-�,•-�-� j ,°'" .\ , Return period: 10 YEAR Rainfall Intensity: VA IF twos t ♦ Computed Results: DA-CULVERT l t e t DA-2 ' ` ,� ` \ ' ' ' ♦♦ ♦ 2 81 cfs I i .W-01"""."w. y t 1153 t \ l 1 ♦ + , Peak Discharge (Onl � A-0 Ofi A 0+50 [! 4141 0+00 0+50 3 STORM SEWER PROFILED t_-_42_V HORZ SCALE: 1 "-20' VERT SCALE: 1 "=5' 575 F�7 565 555 C 00 0 o ¢ 77 Z Q m m m z �!e ry 0 w Fn a 0 1.1.1 LL1 0 Q 1 Li 1j-- Z z O 0 1 A = 0.85 Acres 1 t t .+�++""'^ i .--�cl 1 - - . cres \ \` `\ \` a 4 t Tc - 6.0 min - �t �"~ `w 1 - Tc = 5.0 min \ - ,f' % C - 0.50 I ; DA-B1 DA-A4 C=0.80 �, +�" �` \ '` �' - Culvert Design 1 l I A - 0.15 Acres �'°" A = 0.11 Acres \, \ \ f O \ = \ \ \ \ \` ♦ s SS \ _ \ Tc -fi0.90 In � Tc 6.0 min f '•, � \ Design Parameters . ,6 ( r } \ e ( ( C - 0,85 Section , y zu ! I\\ \\ i " I f�i ;.�,;;r.: I `� 4 t '' �rt Shape: Circular \ ! , \ L DA-A3 1 t t ADA 0 24 ll ` +`' A - 0.18 Acres Material: Concrete _ \ ,l _ �- Tc - fi.0 min ti_ 15.00 in - � --.a...�•" - r J . \ � 1 Diameter. 0.0130 � Acres - C - 0.85 t \ - i _ l -- ---' .,..!� e i Manning s n: Tc = 6.0 min .•!'. - r - Number of Barrels: 1 ' DA-Ai ' a{ C - 0.65 '"- f' _-...%�;#�,:� f �" 1 �" " \ \ \ .` - ` - Inlet -(I JOB A - 0.19 Acres /`' . _.•�""'� ,Y.r't. \� Inlet Type. Beveled Ring, 45-Degree Bevels 1:1 , Tc - 6.0 min ,� ,.. POO .'"".. _ _ _ .,:..... tra `: _ _.. \. ~ ` 0.20 C - 0.65 . ,'.� o .C;� ' - ` '" -, ,,,"r-- DA-3 � � f. `.'`~ " s` \\ Inverts C � A=0.14 Acres / -' \ - 596.780 ft ,�.... Tc = 5.0 min - '�.� _ __ ( -�� Inlet (avert Elevation: i// � �+ \\ o\ •�� � r "~• �',� ,/' - � C-0.80 r�-�''�` � ;� } I } ``� 1j -' Dutlet lnvert Elevation: 0 ft Length:72.340 I \ \\ � -•---'"'""ram DA_C1 CD- .- , i I - �` - -_ I -o \ Slope: 0S0 l r``,a• A 0.16 Acres - - - - . _ `- ` o - - f \ Te - 6.0 min \ \ 1 R._..w.,..,..,....•.....w.y ;ram ` \', {' } C = 0.85 _.._ \ `r� `�" � � � rr / f X ` Culvert Calculation Discharge' 2 8100 cfs �•.� ; /� r '=-- _. _ -��r ! , ` _._ -- \ ~ _ { / / ' - Headwater Elevation: 597.77 ft_ Shoulder Elevation: 599.33 ft Freeboard: - 1.55 ft , - J Tailwater Elevation: 596.42 ft o" � rr a r - _ _- l 1 j \. / / 4.17 ft/sNEEi NC}, Downstream Velacity / Downstream Flow Depth: 0.673 ft Flow Control Type: Outlet Control, Gradually Varied Flow yp C�421 DRAINAGE AREAS FOR STORM SEWER50' 0 50' 1 ao' 150" fi CULVERT CALCULATIONS SCALE: 1" = 50' �� SCALE: 1 "= 50' SHEET 7 Of 15 •II/IU I.IIFWI ft31 y s r_t �t .r - Date- i inear Developmeni: Prvied-7 r gy Dn lei fleTeateritVol me arnt l:r■I Enter Tel i3iste►rearrcres) - perr sc Or ref[aeeeil esI tiisturlied ::aF1 Bi argesJ'-- randa�tutb�z1,:. 1�space'or Lkforested �i�r�ual:l?a�iraf�fl �'ri�lires;. �3 T t I R4ra pit (111) EKGC or" Target v'%aar#'{1WaGra? Y+:}. Pl.(uRttles�;�xrrgc�t�r� TaF} D SIT . > : AMP ,RO O Spec OF 2013.0raft Sjtds & SPecs L€at��o�rer.r�rEo�:��t�sr�dccrrcec�tl? �+"' T0t01. dlstq,rbed urea. ter�I C. t i�'?rrrwri�"#f`nu�3:renr�3re �il"v'.l� �' A 5oti�, I3Sa€is C.So�r[s I�=So11� I oresY,/{3pt ¢p mace Iaaagea furt ow_ r Inapeaulaus l Darer {lAn", f3'U %aAtf �rtver:�yrrlmlar� tars . r 'Aetl weloPrrton# 114ad Adl, dx , i`��'•ui.\iKy:':i):F:r''.ty iJ�,'Ai''P2�'''~;`�£:: r.. ,..1 �5; r� gypely'W(:l�ritart } r€l gl3tecl !LnJ .IJlataadTurf, (fie:#e€u�it�'<;o#gii.�a€rez�' �a�".y� ;, .� Y•;;°`�%>�� �&lnaperv+t'esas fl��C'$ ��\�:.{�':\?;•�a '�y\'t�s ",%- . . Tr>b Pre>Rva€Yauelept�eert'i'ecafJr';unilialratarse sv�., �,,., ,.,��;" �'���'�r� , , 5 SF: , u I'!'#1'#�8#�Y�I�{Crxl@Fr#�3£$�3'Ii2rYY:i�3?1111:#D� }( ��l�,n <�`r'(f "3. ,ry��F���,�c'✓'"��1�'i d .ram. "sti' a S Y 51 I! 'I`e to": „�x'�`,'w3��:•r:,"" ^'r ��x, t'a�'ay •<�'' irv,:�a`:• Pi'�ieiaEapra3€rrS7F'Lrxsd per ae.�' ske. P. 3AdjusterU:Land Cvuer_,�y-rnpry.:` I`ve �e��vels7Ptrterii�"arrr# c�verrrkirayrs Perufi�ces tc� nr} �� r-Tf gres�!�? p,�r ��?ac;e off' m—,aged too air og propos /far a— rrrrperv%Orrs s4V- rt�djuaEecUrptrr€aeret�geu Eonsrs€er�£'�vr<h Frrast=�velerpmeni�rrrt�g�(+niirces or<r�oge'ofn irraperu�uscover}. £Grit lnst t�ass�.lrtirr� rer#tr ciarr t urieertt tor: ear i a7U ersic rrs ca§i r (ba's 0 an trew:rU�re+e;oU»aron'i'1�d li�fl; .#i��'Ibsfczeref'}�ctrj. iros# ReDev._ A NxG w im e-j— Foreskpert TPLoad.£teductlon Required i441vri Forest/oPen �tfam Cower -agxe5 W,e hter€ig dRvffore5t) FoPost mamw,o jo f ov r Weighted 0v (turf}- % Managed Turf Repev, it7�.p F+iicau5. cover(acres) % impervious sriatRen av site 'Arip,; too Cover SurRmxarPA! t-_ -_.. _ __....�[le+eriorEtNetit� Etnp+ervlaras geew Irrtperv.jgvs rawer (acres) Pq tfaarelc+pmerrt Tiaadnntiialsarite �131i3c'ie x` X> > ; ter A .\ z �.�:'i .. � v, Y s 9 ,:'Vv'/,,jilZ;a1•;s :.�n.�aa�` �h. lSReiiearelogt►�erri ..ya ;s.> ,. ///%uac .,; hzs L3aiT8lotei'Irert#.t'i' Pod vr P<fs.f�Revelapm�tri`FP " � I .lead Bier here may: h he i5: %Y fix. RC[IllttiiXt:IilrpfMeti ifel}et+elopnranti.rsadl \ ' sgy�:3�t,`,y max' TV Load Red., oor TP Load Reduction Raquirasi fear � alequto #tecieueivped Ikea lanper'viau$Area 'fieatnzetn3Vir Nitmgerl .loads. Informational Purposes Only), Final Post-bevelopmentTN Load PIKa Ae1) ffvaIp.pr aat.7N:£'r>acl Ros ReGeveIIopheYtt_C:b1ety 1 �� ,. l3tz/�r�. tmlZerwcsus). �IEr/'Jr}. Ir ► RE-DEVELOPMENTPR SCALE:NTS Site Re; .uits.(Water Quality Carnpiiance. Area Checks FQRi:5T/oP,EN SPADE. (ae) IMPERVIOUS.GQVER (ac) IM.P>RVIOUS COVER TREATED.(ac) MAN AGED.TLIRF AREA. (ac} MANAGED TURF AREA. TREATED (ac) AREA G#IEp( DA A PA.A DAA C D.k D D A E AREA CHECK .%,n<.'.:c�/ to/.'y^^> ;vy•4;<(F. ;',:J'g�... v ;:yr, 'a' ^a v` �T' '')�`,d>7:3.�.;.^�" i`314'4^ .%C✓:, �£r`�) .VK. OKI. '.i/r�'" w�$. `��"."�;>.s, .. •2�:':"\,+a\,: ,Y,v ^4.L:,: ay. �'�`% ;�`:�.i`i� ��``i•.`3�'':.�{,, �,�£: 0�' ! eiTki�/ � �,� �';� > �u . �� � \ 2 ^ •x �% w"a„ s ' 5,r .( Sx ,� � .� ;�'`%'r :e<�sp AfTii// QK. o' f)IC. QK. OK, Site Treatment Volume (fe) Runoff Reduction Volume and. TP By Drainage Area D:A.:A, O.A. A D.A.-C D.A'.:D t3 A. E TOTAL ' RUNOFF REIt7GOUO$GHIEtEI.3 ��:i7( r5 TP LOAD AS(A1iAi31CFOR'REI1II01IAL {Ib/yr) '',�h.; `?zY „b :T\t` :J•. 'i>;. ,+'i,', :',`,`�,'`.\\tom" r!L 3il t. TP ILiJAt}.REDUiGTIt7N ArGIIiEVED (I1s/yr) - ::;4,`:'. :� \ ..,� `:\\`':` �'v�uc +:��, �" rx�`,4v5` h `r ` , �:/�, `•�. •ai, ;.., ;T,.r>.o x°` 's:i'o�$%:, ''a:i`<^;pr '3: ;'s �,<`.�f..iss�.: ,•a,,,,, ,Q\:ac�` ��'�` :2� ;�%%';<::<:ram; - `�":�:'a„' TP- LOAD 0EN1AiN1NG(litjyY) , ,.(jv`.>r \ /.:,> ,;,�.; ;>om\�`,',., .\>;<,N N�` r\S:'�, ,>t:;''k4� `':,�a''/`';^', a -a} `a \.., •.�y;gk �(h`>. NITROGEN LOADREDIIiGTi(i�1 AGfitEVED {iitlXt} `��"•�t`, Total Phosphorus FINAL POST -DEVELOPMENT TP;LOAD (1b!/yr) r e a�` ✓�tus` i TP.LOAD REDUCTION REQUIRED (Ib/yr) r � �G` .ti*sy'. TP LOAD DEDUCTION ACHIEVED (lit/yr) TP LOAD:RI_NIAINiNG (14/yr) REMAINING TR LOAD 'REbUCTUON REGiUIRED.. Total Nitrogen (For Information Purposes) POST -DEVELOPMENT LOAD NITROGEN:LQADREbUCTIONA;CWEVED. (16/yr) REMAINING POST-OEVELfi7pM£i#T. NITRO GEN LOAD (10.1y : STORM WATER QUALITY NARRATIVE: 1. The Owner has purchased 1.24 Ibs/yr of nutrient offset credits. Refer to C-425 for purchase documents. FOREST/OPEN SPACE MANAGED TURF + IMPERVIOUS COVER I. .I 11 ' I r 1 1 0 Zya ...__—_._____._______--__....__,..___—_..._...--- ^r^r Y '''v'vv'rvv-.•. "YYY'Y'Ya•^t `.^'e"y '.y..y�."4n,1'++'Y`+",c PRE -DEVELOPMENT LAND USES SCALE:1 "=100' 1 i f } w � I # I I I d I f i ,} 1 1 I ! I I I I POST -DEVELOPMENT LAND SCALE:1 "=100' I 4 SOILS MAP C-42' SCALE:1 "-100' Urban land I r Type: D Hayesvilie Loam Type: B O� 00 7p"r � iss r "" W Project lent of terms of trized by facility IliaYicium Avong# 0. R;'6mand.1/A.2323t •..Pc Rtk4 1,5134 ' wwwv cbr lrcotrt.. ZZ z { ♦ w � Ulr�l r .•. / s .a r u • son 04 L SUN- L,tr.rr*It��lei! �.. �,�.► 1 r r� 1' L V ■ ■ ■ ■ ■ r )E jr'r /1l�isitils�r i I • ,1111 t xis■��'-" Aga%'' rrW-VA Ni rr l�Z`�Cf'r.jt'Y:!rv. L+«r�•r'!i�*����'��tk loss lays leas IN loan visa RON %aWAR; slavell a �c ill ii1�1 1 � 111-4 !: SHEET i ow-�Avv 117 �422100' 0 100' 200' 300' SCALE: 1 100' SHEET ■■■■■* of 15 DISCHARGE POINT 1: PRE -DEVELOPMENT HYDROGPRAHS Drainage Area A A Soilis B soils C Soils . . K :�:. ' y•' s�>y4%�J�'F`%�Z'<u`,+; E> c c < C {. A Y .. � ... - ...w. � .'� ... .. :. � 1 _ ,... � '• i`�4.: v: r<,:e::. i4. :.�.. .. �.Y\,n ������.`0,4:` :Fares' .Q eo:s-'.ace undasturbed>. protected rest.:o ens ace or reforested lend CN 70 : \ \.• r , n n3�10111.0�` ,s� �\fix ar other Area .acres , n T rf. -- disturbed, 'railed for ds car . aVta, .aged.. u... _.. i to . to be-rnos�e d -`naPaged rf / Ak ,Area (acres) Impervious Cover CN 96 9f3 Input Data: Rainfall Distribution Type: Type 11 Rainfall Depth: 3.60 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Tc Name (acre) (min) DA--A 3.00 60 6.0 Computed Results: Peak Discharge (Qp): 2,64 cfs lime to Peak: 12.10 hrs Runoff Volume: 0.09 acre-ft 0 0 YR STORM EVENT HYDROGRA Input Data: Rainfall Distribution Type: Type 11 Rainfall Depth: 5.54 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Tc Name (acre) (min) DA-A 3.00 60 6.0 Computed Results: Peak Discharge (Qp): 7.14 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.24 acre-ft Drainage Area D ;, t rbed. rotected Area acres: I"€�res#/1�perr space_-=:und s ,.0 , P (acres) ...1 A Solis B SO is C Soills (ores /operi space or refareste Iand Chif2 ds or other . a Managed Turf - disturl�edx:graed or a . . y. r Are'acre Managed %`. w,:"`��'i��FaNINE', \ a turf to be rnted/ixianaged CN - . . I'm ruit�us:. Cover Ise Area.. acres 1 y� :.1. vF „•3` grt:::. o�, 4":,J'2. U`a \^ os n� 45 rnt 2 YR STORM EVENT HYDROGRAPH 10 YR STORM EVENT HYDROGRAPH Input Data: Input Data: Rainfall Distribution Type: Type 11 Rainfall Distribution Type: Type II Rainfall Depth: 3.60 in Rainfall Depth: 5.54 in Base Flow: 0.000 cfs Base Flow: 0.000 cfs la/P Interpolation: Off to/P Interpolation: Off Subarea Area CN Tc Subarea Area CN Tc Name (acre) (min) Name (acre) (min) DA-0 1.95 74 6.0 DA-0 1.95 74 6.0 Computed Results: Computed Results: Peak Discharge (Qp): 4.16 cfs Peak Discharge (Qp): 8.62 cfs Time to Peak: 12.10 Time to Peak: 12.10 hrs Runoff Volume: 'acre-ft 0.14 acre-ft Runoff Volume: 0.28 acre-ft CN DA TIME OF CONCENTRATION WORKSHEET Sheet Flow Segment ID: A Manning's Roughness Coeff. (n): 0,013 Flow Length, L (total L <= 100 ft): 100,00 ft Two-yr 24-hr Rainfall, P: 3.60 in Land Slope, s: 0.50 % Tc: 0.038 hr (2.3 min) Shallow Concentrated Flow Segment ID: B Flow Length, L: 200.00 ft Watercourse Slope, s: 4.03 % Average Velocity, V: 3.01 ft/s Tc: 0.018 hr (1.1 min) Channel Flow Segment ID: C Channel Slope, s: 10.76 % Manning's Roughness Coeff. (n): 0.050 Velocity, V: 15.52 ft/s Flow Length, L: 372.0 ft Tc: 0.007 hr (0.4 min) Total Tc: 0.064 hr (3.8 min) DISCHARGE POINT 2: PRE -DEVELOPMENT HYDROGRAPHS Drama a Area 8 A Soils B Sods Forest/Open Space -- undist r ed protected forest/open space or reforested land Area a es. CN0_,_'; 3. �. <; . QQ Mang ed.Turf -- disturbed, graded. for yards or other turf to be'rnovued/managed Area (acres N C . ,,\* � S9 s 6 I'itmpervio s CoverCN Area (:acres) 2 YR STORM EVENT HYDROGRAPH. Input data: Rainfall Distribution Type: Type II Rainfall Depth: 3.60 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Te Name (acre) (min) DA-B 1.69 66 6.00 Computed Results: Peak Discharge (Qp): 2.1 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.07 acre-ft Input Data: Rainfall Distribution Type: Type 11 C Rainfall Depth: 5.43 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Te Name (acre) (min) DA-B 1.69 66 6.00 Computed Results: Peak Discharge (Qp): 5.4 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.18 acre-ft DISCHARGE POINT 2: POST -DEVELOPMENT HYDROGRAPHS Drainage Area N A Soils B Solis - undisturbed, protected 5 ace forest/open space or reforested land Area1a.cces:Forest/Open �r + , . :a 80.5 .o .: CN Managed Turf dist�a urbedFproded for rils orother turf to be crowed/managed rest Area fac S9 .:,. :.• ��. 6 CN Impervious Cower77, r. (acres) c s Area 1 .a e. . CN$.$ 1011 yR STORM EVENT F{YDROGRAPH rl f tic TIME OF' CONCENTRATION WORKSHEET Sheet now Segment ID: A 2 YR STORM EVENT HYDROGRAPH Input Data: Manning's Roughness Coeff. (n): 0.013 Input Data: Rainfall Distribution Type: Type 11 Flow Length, L (total L <= 100 ft): 100.00 #t Rainfall Distribution Type: Type 11 Rainfall Depth: 8.88 in Two-yr 24-hr Rainfall, P: 3.60 in Rainfall Depth: Base Flow: 3.60 in 0.000 cfs Base Flow: 0.000 cfs Land Slope, s: 0.50 % la/P Interpolation: Off Tc: 0.038 hr (2,3 min) la/P Interpolation: Off Subarea Area CN Tc Shallow Concentrated Flow Segment ID: 8 Subarea Area CN Tc Name (acre) (min) Flow Length, L: 200.00 ft Name (acre) (min) DA-0 1.95 74 6.0 Watercourse Slope, s: 1.11 % DA-N 1.69 66 6.00 Computed Results: Average Velocity, V: Tc: 2.14 ft/s 0.026 hr (1.6 min) Computed Results: Peak Discharge (Qp): 17.60 cfs Peak Discharge (Qp): 2.1 cfs Time to Peak: 12.10 hrs Channel Flow Segment ID: C Time to Peak: 12.10 hrs Runoff Volume: 0.58 acre-ft Channel Slope, s: 11.10 % Runoff Volume: 0.07 acre-ft Manning's Roughness Coeff. (n): 0.050 Velocity, V: 13.96 fit/s Flow Length, L: 350.00 ft Tc: 0.007 hr (0.4 min) Total Tc: 0.071 hr (4.3 min) Drainage Area E Forest/Open. space - undisturbed, _protected Area (acres) A Soils B Soils C Soils D fares/open space or reforested land CN. (acres) Managed Turf disturbed, graded for yards or other Area.{ c e. turf to bend/ataragel C1 ' +�+ �'±1.pa.'(�ii4!r4nJ\j j,�r� /��•�.} y� {. �''•y] �yyr i+ .}, d 1:.'I.•p4ri Y'�VJ L�Jvi:'•i cNs~ i# .. , 55; , : 70 ♦\ < �+ '��'•.�..�"..".3.(1'f :J .4;N• h�i: iy,''^'�i .air:.(✓ `;;'"�"'<y;. ':ia.,;`< b1 N a>✓.,9�y: %.CJ v>'7+.✓/. :�/.:..n�S:r'Ye ti.>`«•'•`'"'.:. : 74 n ..: n'(,�{Y�R:,.,�o,, �,: v::•>.�.. ,��e..x. t��,`: S'`$iC'� \� `...�;,C ,"\�;:T'rJ_U.. Q [i to?, t Input Data: Rainfall Distribution Type: Type 11 Rainfall Depth: 3.60 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Tc Name (acre) (min) DA-P 1.05 59 13.0 Computed Results: Peak Discharge (Qp): 0.64 cfs Time to Peak: 12.20 hrs Runoff Volume: 0.03 acre-ft Input Data: Rainfall Distribution Type: Type 11 Rainfall Depth: 5.54 in Base Flow: 0.000 cfs la/P Interpolation: Off Subarea Area CN Tc Name (acre) (min) DA-P 1.05 74 6,0 Computed Results: Peak Discharge (Qp): 1.77 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.08 acre-ft 11 IN r r a r►# r r r CN,to.._g 11ME OF CONCENTRATION WORKSHEET Sheet Flow Segment ID: A Manning's Roughness Coeff. (n): 0.041 Flow Length, L (total L <= 100 ft): 100.00 ft Two-yr 24-hr Rainfall, P: 3.60 in Land Slope, s. 7.50 % TO.. 0.206 hr (12.3 min) Shallow Concentrated Flow Segment iD: B Flow Length, L: 75,00 ft Watercourse Slope, s: 19.30 % Average Velocity, V: 6.59 ft/s Tc; 0.003 hr (0.2 min) Channel Flow Segment ID: C Channel Slope, s: 4.90 % Manning's Roughness Coeff. (n): 0.065 Velocity, V: 7.72 ft/s Flow Length, L: 225.00 ft Te: 0.008 hr (0.5 min) Total Tc: 0.217 hr 13.0 min 2 YR STORM EVENT HYDROGRAPH 10 YR STORM EVEN HYDROGRAPH 100 YR STORM EVENT HYDROGRAPH Results: Results: Results: Inflow Peak Flow: 4.16 cfs Inflow Peak Flow: 8.62 cfs Inflow Peak Flow: 17.60 cfs Inflow Peak Time: 12.10 hr Inflow Peak Time: 12.10 hr Inflow Peak Time: 12.10 hr Routed Peak Flow: 1,07 cfs Routed Peak Flow: 4.33 cfs Routed Peak Flow: 14.48 cfs Routed Peak Time: 12.29 hr Routed Peak Time: 12.23 hr Routed Peak Time: 12.15 hr Maximum Pond Storage: 0.0684 ac--ft Maximum Pond Storage: 0.1466 ac-ft Maximum Pond Storage: 0.1867 ac--ft Maximum Pond Elevation: 551.04 ft Maximum Pond Elevation: 552.16 ft Maximum Pond Elevation: 552.54 ft DISCHARGE POINT 1: DA-O ROUTED & DA-P COMBINED HYDROGPRAPHS 2 YR STORM EVENT HYDROGRAPH Results: Routed Peak Flow: 1.68 cfs Routed Peak Time: 12.20 hr 10 YR STORM EVENT HYDROGRAPH Results: Routed Peak Flow: 5.97 cfs Routed Peak Time: 12.22 hr C: 10 YR STORM EVENT HYDROGRAPH Input Data: Rainfall Distribution Type: Type ll Rainfall Depth: 5.43 in Base Flow: 0,000 cfs la/P Interpolation: Off Subarea Area CN Tc Name (acre) (min) DA-N 1.69 66 6.00 Computed Results: Peak Discharge (Qp): 5.4 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.18 acre-ft 0.00 0.10 0.20 Accumulative Storage (Acre -Ft) Ele#t) Area(SF) Storage(CF) 549.50 0.0 ___ 550.00 1909 95.5 552.00 3623 5628.5 554.00 5620 14872,5 5 STAGE -STORAGE CURVE \Q-42Y SCALE: NTS kf f C $0,iis Q Sons �fl 2 n v C V A,: Bl -]ME OF CONCENTRATION WQRKSHEET Sheet Flow Segment ID: A Manning's Roughness Coeff. (n): 0.013 Flow Length, L (total L <-- 100 ft): 50.00 ft Two-yr 24-hr Rainfall, P: 3.60 in Land Slope, s: 2.0 % Tc: 0.022 hr (1.3 min) Shallow Concentrated Flow Segment ID: B Flow Length, L: 170.00 ft Watercourse Slope, s: 0.59 % Average Velocity, V. 1.15 ft/s Tc: 0,041 hr (2.5 min) Channel Flow Segment ID: C Channel Slope, s: 2.33 % Manning's Roughness Coeff. (n): 0.050 Velocity, V. 7.22 ft/s Flow Length, L: 300.0 ft Tc: 0.012 hr (0.7 min) Total Tc: 0.074 hr (4.5 min) D Sons .._ .. _. CN` n.A. c1 TIME OF CONCENTRATION WQRKaHEET Sheet Flow Segment ID: A Manning's Roughness Coeff. (n): 0.013 Flow Length, L (total L < 100 ft): 50.00 ft Two-yr 24-hr Rainfall, P: 3.60 in Land Slope, s: 2.0 % Tc: 0.022 hr (1.3 min) Shallow Concentrated Flow Segment ID: Flow Length, L: 170.00 fit Watercourse Slope, s: 0.59 % Average Velocity, V: 1.15 ft/s Tc: 0.0411 hr (2.5 min) Channel Flow Segment ID: C Channel Slope, s: 2.33 % Manning's Roughness Coeff. (n): 0.050 Velocity, V: 7.22 ft/s Flow Length, L: 300.0 ft Tc: 0.012 hr (0.7 min) Total Tc: 0.074 hr (4.5 min) NOTES: 1. Trash Rack must be installed at the time of installation of the Concrete Riser Structure, Top of IDam- Eiev = 554.54 Embankment Elev =554.54 Trash rack manufactured Pond 100-YR W.S.E. = 552.54 V Embankment 10-YR W.S.F. = 55916 4 ju Crest Elev = 552.00 3 1� 4' Diameter Concrete Riser Permit original nootMissulan ed andPno grading ) was performed d prioroved on S ofember 2014. 1The proposed ��� � i A grading p C„ � improvements shown on this amendment decrease the impervious area and peak run-off. c,, u t -his site. e of Section 11C will n I o The Re uirem nts 9 PP Y 9 ci ¢ --' >-. Impervious Area Summery Building Pavement Approved Pans 8,000 SF 65,705 SF Amended Plans 8,000 SF 22,056 SF Discharge Point 1 Summary 2-Yr 10-yr Pre -development 2.64 cfs 7.14 cfs Post -development 1.68 cfs 5.97 cfs Discharge Point 2 Summary 2-Yr 10-yr Pre -development 2.1 cfs 5.4 cfs Post -development 2.1 cfs 5.4 cfs STORM WATER MANAGEMENT NARRATIVE SCALE: NTS 10 YR STORM ELEVATION: 552.16 L = 29.8*.15 = 4.5 Y = 552.16-5549.5 = 2.66' COLLAR SIZE = 6.6 Z = 3.0 FT COLLAR PROJECTION = 6,0'-1.5 = 4.5' S = 0.025 FT/FT NUMBER OF COLLARS = 4.5/4.5 = 1.0 Ls = 29.8 .ANTI -SEEP COLLAR DESIGN SCALE: NTS Shape: Trapezoidal Side Slope Ratio (V. H): 3.00 Crest Length: 5.00 ft invert Elevation: 553.00 ft Coefficient: 3.33 Number of Openings: 1 Headwater Elevation: 554.00 ft Discharge: 21.92 cfs Velocity: - 4.11 ft/s SCALE: NTS Stage Orifice Riser Total cfs feet cfs cfs cfs 549.5 0.00 0.00 0.00 550,00 0.47 0.00 0.47 551.00 1.06 0.00 1.06 552.00 1.42 0.00 1.42 555.00 1.70 14.42 16.12 554.00 1.95 17.26 19.21 4 STAGE -DISCHARGE REPORT '�-42Y SCALE: NTS 2-YR W.S.E. - 561,04 v 6'x6' Anti -Seep Impervious Collar Core 10' 6" Diameter Orifice w/ trash rack INV = 549.50 35.01' - 18" HPDE at 4.28% Inv Out=549.50 4' Min. Cut Off STORM WATER. MANAGEMENT BASIN SWM-1 SCALE: NTS End Section Inv = 548.00 f f !t tt ti 0 w W M !! Q 0 c� 0..7'+ Li •� L d a f t • �t s i • SHEET NO. C 4 3 SHEET" 9 of 1 i --A--�. J 1 f l ! � T , .. ., ..{ y' \ +tsl, tt -1 } \ J � I � 1 /7 �`s , / / / I �y� "' � /'! 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''\ `.•� /.._ �. _ _ -_ '� _ ~ / r / � 1� / J % Smr Ca�i iTne Curb and Miter r Cu# Lhs 1 \'�p \ \ \ `\ i V X ` X \X, X \X ` '\C nisi Chan _ ~ Discharge '`_ �.,. e A—D � # \ fV , 1 �\ 0 9e 8anered rye" (To Be Remiwlid) \\\ \ +.. f 1 X X X l '\ X x X `. _\ �!4L.. , :♦ . _ Point � /,' _ 1 � t .69 l�ci�eS // � / J � �� �r� �-► X'. X X \ ♦ % : / \ \ ` \ 1 !" 1 a`' J C12 r-1 U � ---- � ®_ ea��Y�� ( \` \ \ \ `\X\ , ' \ X X .:X ` \X X" \ e XX� y�. X�x \ 1 Dischar B _ -- / R i+ f '' i —^� \ �c / f t '� t'S'ol W �/ ! ♦ \ \ i \ X\ X `\yt X \ C' } (To Be Raltaved} 00 Cow Point i , ,. _ '_ S r /' +" \ \ Q \ \ ` / ��_ — . ;'�} Z \ \ ♦ \ y j3 ' vt ------------ ---- --- . i (To Exkt pamylad Ramo+�d) \\ \\ \\ \\\ t} i \ 'X�\� j�\\X`\,X\ \ \ X, �2 \ it v ----- f j / / '/ - �� \p ar- CtljV, �� I \ X X X \\ ..."'i'� �. ,x sX ."1x'� 1 1 \'hey / ¢ W E' ` u x -` 0 Sheet Flow `- ---- ---- - - _^_ FxIBt Tt l _'x = X X x x — .. C► ��y 8% ` k ` X, — _ / i / �,, / / f ,.Q� f �` t / �."'� xw 2.3 min !" / ) ?t X X! �, EILt Trees X x x — - '\ ;, �` (TO Onainz i 1 Exist Trees' To emalnQD) APh ait in as r \ p 9 Shallow Concentrated Flow`,, ; ' ��, 'i `� �.. •�` - � �-----_'.__ _ _...` �/ ( 200' 0 $.0% f l / ♦ g8 1,1 min P600 RE -DEVELOPMENT DRAINAGE DRAINAGE AREA 0 5tJ' �tl' tV' 5' 50' 00'0 DISCHARGE POINT 1. P 3 DISCHARGE POINT 2: PRE -DEVELOPMENT DRAINAGE AREA V-42-V SCALE: 1" = 50' SCALE: 1 "=50' -42 SCALE: 1"=5Q' ' SCALE: 1 =5C? i /'"/' / r+ , "„+r i %' % j \ // / / r % %I /l J � �� �• ��;. _. // � / } � � `�J / % % ) 1 t f 1 f t � l I l l f / /l /+•% I `\ � � / , r + ! , � \ ,.._ / / � `� / . `` �•"SC` + � � J "`� 1.., I _ +' it 1++ FI JtJ +j j! ,f r / l 1r �1 �,-. /-,,.r../-`� / / " .' ' I / � ' t ` , i' w ✓'r ;�, � Y ( —A, \'` / / � % � /, / �`% �,�� '''� -'' `-J \ t ♦ / / / / / f t 1 f1 i i r tI I / / •' /i ,•' i' \\ ` 1 i r r", t" �I '%/ j7 \' ..,,_ / / / � 'j� `•Jfl{ �i- /' / Y ..•/ a ,`� JJ/� ,/ ! ' \ 7 r 11. tl i 1 pj � rt `� t 1 l / / / •!' � ��/% `,` `�l � l) {t t� _._- , r ctx"3t 3 +," f \ i 4l I `__, � � / / / � /% { �•O'ti _. .�� % 4; �/ } ,,;1 \J �� /` % / _ f t! 11 fr 1 1 / Jl I t , � I � / • /,, ' " • /{�C� / � r 1 1 , , r " + r i' + ! � . _ I / � ,\ J / / / � / �t ��*.y � � �` ./ ` �% "`". ti � Sri f/ / / �,•.....• -' , 1 / / / �a.�► t / / / x `.. f %" 7- 4� /�� i / . +�t,.?5R' ' ! i % r , ' i i �' , , , � e �' r - '"0ti ' \., i --., 1 ( � / y •-,. / / � / / / "�`r I . > _ '�' /„'�r� , t , / / J i,• / ,"w+� �', f ttrr++ +i: /r ,"" `\l (/ , \ \ n / / t yam, '>,. !- r / _._.- \� / ♦g4 ter/ E y Sheet Flow ,,;v /� ;i _ tl i 1 T +' +i{ +,+t .% / i r% 4 '\ •.�,\` t �• f �' / ,� \ 1 ` // % 10 0 7.57 ` t / �' \� 13.9 min S�iai Concentrated Flow _ _ _ W j low - - r _ 1 _. _ \�. ! , i : 0.2 min _. _ _ ' / \ ., - ", ,\ ` ` r.+ w.4 � -/ ,' / / /, - ....t✓5rr- � / J \ I �. � •ti,,,, ,•� �„� l % —'r= - yr �� r _..� _..-._ _ .s _ — ____ t \ \ r - - ` \ " 05 Acrs - / / f FM JillI / Q/%�reBB r - .\ \ '\� \\ \ \ \ \_ \., a\ I �i� / -'' •,/' '',' / ,' \ � � \\ .\ \ •\ \ r � { ` \� ., LOT 2 ' � �f''? � �+► � ®4Orl � C77 clq N Z LLd iLd fl 0 O 0 w � � z 0 0 p �i r7 lads aM eo:\ _, ._ ' / _ - ' _- // 4 i 1 ✓ ' / ! / / / / / J ! t- t'J t \ \ to be mwtad \ \ t ` _ __ ._ . i - ` r' / i T. ! / / J 1 z j�ttNot-9279i UA"1J \ \\ KOYf. �` , .�l // \\ / / �� // / ,r / aj ' 1j '/ / l' f fi-''•i 1 -t- 1.95 Acres r' DA—N 1 //, Discharge ( \ / i 'Jrt \ \ ,\ 1 \ j ti ' j \� .•� Point / ''~ \ ��\\ 1. Acres Latta \ \ \ �`'. \\ ` S4�,__ \ --- _.. 'r / \ \\ / i•*�-i lr x mg— -- ® ` \ '''� \ \\ \ ` \\ \'\ 1) �� yf Discharge r /',,.�' \\ /•Lt — _ �I �1 Point CIO , NOMMOMINW� »� \\\ MY Public RAN \ \ � ♦ � rr r � \// / �% ~ / / Tim 6.0 i� in .\ z i _Shallow onentrated l iow i ! \ / e' / / off ; ' ( 1 1 / / /i 100' 0 0.5% - 00' @ 1.13 T 2.3 ruin 1.6 min � f _ p� ®i13% E& Trees _, _ - _ r x u \ '('t11 \ - R Trees 0.4 (To On - _ x �` An" t.i.iy "4 _j fit LLJ f LIZ.' fie"" 'w" Wa ftU% LAJ -60Cw,424 SHEET NO. S ' 2 DISCHARGE`, POINT 1: POST -DEVELOPMENT DRAINAGE AREAS 50° 5° °°Q DISCHARGE POINT 2: POST -DEVELOPMENT DRAINAGE AREA 50 5a 1 a0 1 C-42 SCALE:1"=50' SCALE: 1 "=5- SHEET 1 of 15 -4 SCALE: 1" = 50'50 SCALE; 1 "=5�' t blk "A 0 tt� q F,rd 6, )MAI LC T L 4 4, CAW&. M d Date and Locatic in- Closing" -,th -g�r hie Vim 1 M ; (_), e �,. jii en ve, . b oll..'r . ... .... U51 �0 t is dM A' er 0 aPY-1c. S T of), as :0, t., VA-sys ,o RN d 'A NA, L RE LAM f or. P _;On or C %D 0&�C wn xf Clositig Aall occur- y,sp Wet date, o or -w. M uC 4 by �:ii w�y r anmq xg d od q vpxes ], % 'h It' ' ; ' ; vp t omwe v I age t;� X, vv C1. Red I �'Fg,&UMM 19 Pumw 0M grid Putc 0 d E$ N7 ell im SIR. Or . khother.rplace.asv _h" r 40 Agree. VA� '�,Q,�July '17� q R01- A t Y,PXM. -.1p 0wo d 01, 0�-,: f 7 x �p de— p has to b Mun d 4, kilwj�v At C10 av (b) Deli siok� stl*;Oa w $0 p*qlg 00'�% `to: corim re'a �ij OU p oms it y �bf-pho C Salt �Stgtnd 'Pluvw0r, Midavit: twit . V-0....., .. - exeoute and del ivet to PUM'. S. tin.. f 11 1 'InTo Wr 2POK �110: ts jpRM#i of P b h d A: It W if �.0pe _4 � A * , _C. 6� I , , '� " IM', w i, .0 t :, ,:. Y _4- 40 PPM .. I sa��ti t fonn attached hereto as Exfii6i :"I -ally At C osifis; Pu d 1. _F, he 7_ to rof Aidh deflatilt' P , M, uen no cc o u , h4so -GY, .."I Te i6f9dw1:; 'd V, y .1 J�JU U p wn J). up"IC". b id th" te Mo. 1'41 its -Y __Opwy V� 14 C15:351he�V P -p on-04 N i t 't__f6 b _01 an 4.',n at'i ex ter v. 61t p er- a w ,. e. p. p RF MU JUA Mt. lf'Purch I 16 �P 46a aW th d'', mfch IT "to :00,MP005. ;w_:,__,0 Mwont Maft C, 'Elrlw*10 i*40*0 Delivem wDEQ. ly Closi PPQ ati-000al ixecutid Afo� UP p OMM C', er�, ex O.S. wmylprOvt �P W 'Asa. ny Ah wgps�: be C Q., w, A 'at S, I erm, J; �t_ w , P. , n Y ).b : . 'Met h 4_�i t 0 .4. 0 Pit P" -e .-OTIR 64. PIUM , n , g, V� tmT.-D. 2- Mp *p ilter 56all pa Y, w ofp 11-of we, the 0 UUM"RA .4 a k. �Mt� 6 4P 0 vO. I __ . tfc, aW ffidavit "d $ fo er sha, I pa q oyotS les o 11 ba Ap* tuilc , Ju ob ji 4.' pt up the ".0 4... d, ifoy. t f Yv Or d Water Qualitv Efthanement Fee, My followitfic"100* Sift u0nMettee IM am id, :i4- odw- 'i his- t, 3 p Seuvr wl _014 the A by b 'N A b Ne t . ism Y ai vmftt sou" edl A f ivy 0,1? Oar _91," b*, 0, i0w , , th it'. ft v AMY 4FA...'' - : .-� (b) es, 0. WMEEidkj� J, Settees sell", he**)* IoW_ d'i d Ii. ex'' -P F M er h 00 ser, ere :,expv Win 9, p Y -Y. d Or Orw 1h IV,, d, va Aroi ft� #80100 1 p: a g t'' th ons_"qw.aq. es... 4041' d, v"'. _ , !AP tw -Mw d NOW,: IMAi.o.. "m ofTEN DQU �k$�( D Omsk, SM0,01 "d va. C1 An: r-goo d Pal "n. e K! Y, Autho *xn het :Exwafion.wdD_eUv_qa, TIA Ak� _0has I. 4Cj A oo d LEW FRI, . ...... - J r a .0 - , , 4 Fee b, ft t "d 110r, w-il, ted8tid P. by iffn0cep U _0' ry 6i6 ., : : - .,:, - U, - -PLipar - to A U W$ td ;Wuwar. QJ 7:, . �i� - . I eintofSellor an jh jOtem Agree 'd As. re eys f . ...... g AjA Sell to p Adl bi' 'i- JW: th .4. f.Cjj&CaMj I I b R4eS"Vafioja_o ...... ...... f I ft&w d If ate 0 row M w: t w- w C t4m, k u e 2 pur "M him, ipo�00, 00004 of: A , , ' P rp-M its to be SUM uC PM1, & , .:,p�,i,__ if h -0. M u �WJ Ink i.w� w - __ 0� 1, BUAgft"T%*Wgn: auggad d A 0,11 . ... ... A"' 'D 4 UVOW e �:_.J�S Pot 01 ew* Opt 00C.10 A.14.0.4-A., te p, *,en wo 01:ii, Pa p d 41- 1;��� 6 - * , 41, i0 % 4. 4 :r W — Comolioner"Aw Seller wjjI cow Y11A Ath all #P11* 7'. Cr_dj h Put asq.. Qd C, 4", M wne- pn fi t 4 t 5 -7, j du :110 Ice "y or e 4MV., _P h 'Ja cs In 00 d TO 1109..tot e 0 _e ..44. OVA bb ow CFO= AT) 'od to, pa w ai at A r V 0 M., d Pi g to 0 An- warna w j t a Mt k A A 4 4C by, i0io the tt, 0, a h 0444 Aw "LOA! 04 'uh 0000k v c;b )Ak 0 _�6 J� :wl d, A006 F d UnA Tmat MC .. .. ... A TO (7he"'.. p%t*,iNutde0 .4 T R_ d hl d 15%, Sey_g4�jft.. The, pr.QvW.o1qs.of 11iis Al 000mqoi shall, be td 34PRIP"PI; 'ST, L Ostia tb0oj 4jnvalid:ilIqgal or U' bwegw� 0 fo Ali f t' ,e and Oro T11 W.0 to s are inep gwra limb 00M q, P.. & v -W th .0 mArtiv. A 'Mie A, t a4 ztft M. 9429r�.. A AMP & 0, 0-,:, _��FFF- 7=77 7�7' -shal! bW -NO ROT L vi 00000W� mnw M. LA pos ti-vo S]4� �Ay_pro e as $41 -p sp ep C_ M—sor. "A T''.1 C _S __ , UM 1,110the Prior of t 00*:� -w "two 0040, he party" b!ck M. 'de _._% T w "WOTZ00 16WS L-C v-w TO v iayed., "'h, b li: fha rw anti -Pum he t e F ATTM.- . 17 This Asr eompt aW be Jp� iti co e404 of whi wh, $am h bO all e0er$441. Poo* oAe*0*. t & ds 'ba C *440.114FAW-0 M. 01h., rh�, ent q, A' Div Afte,_ geim.. nr) iiwi_ 0 Al M and )POW M. 1!A1.,:qF_ p M I �f th�� Ogto b hay uco. Ad:ft Qv, - "ta Coulu PPMA. M 1111 Y CIRSA� a Vito tedhy id tM 1MY1 w, wd. wt, 4L 46 6_4 Md A de" U."', '44 �:App Y P. k, 's wro 0 3�3 N., sill ff- ere 'me lk� to W _q, to ti v. - a to and �M iV ov, e r ttp- Mief MM '#M.A. Aq� w TIN; -512LM5 RNT LAND T BAY UST LLC 4 p Cteft and, ts - 7,71 dW w 4% 46d ��Qt 0 Y bit' ho, h -W -d A' -0r. �d -W. M.A ��w . P 'h Fostigir W -,C" At mid, Pa Uic* Ai� '.0*0 elm J# em M Id ha-wil, r RYTM 'd 'to 9 a On sw? t -:at Ino u g."Te ,y o,"o-i-10 ft _#P0b0k,A1_ apy -0, lw_ e BY.'i I . F : - h-TRI fidfti Y h8tut. bi bto .6ut-o A-un, SM 66. nti w-a i1w 15.4 4D d M , � M0, 1w Wever .9r e h4d; YMPYTroy-M101i A it aa �"n 't be hqj�4�4� 0: , ic. Me'll 0 I N _Ss t I .... q Is Bill. -to �M 41 if' d IPA A Title: upe Pro,*: A0, be WAX: Akl h er: on TIN, 54-1542503 FRWY— htkee. am.40 0 Cr�'Agi*00-10M. SAY NUI T 06�, ns -A M44 j _b y-.a UPI= j oft A- Vitt C 0. ",U'Ai AM offt9sphoms Credit j 'Bill of $ale ,3 W. ih*0"tatiqn.=&#jq& Mgt P.: be od Co W1. - --d4pits br 'M '7 T" p Mp Y'Wqj,. h iaj 14' tQ, o M x rg eq 'Y I ''M d MC-1 in 1, 9� !_D_ State. a t e_:A F.ee A- 4Ai "M w 12 w. 11 tove 'To we i . q 'i� 1:0: I A ? -, 'a w 4(� -1 =E Q < z Z P CQ -1 CQ �D 0 Cq M Co 1-4 E-1 z �q C, P-� z00 pq,-d� z 14 MIM W 7, Z Z LJ Ld 0 0 C-) C) LU) 0 z z n 0 0 0 C) C) Ism E4 W Z �4 LJ _j z SHEET NO. C�425 SHEET 11 of 15 "`y ^'"l , t `i �•t, ` �� t s, �i t1 % IJ` \ ' j� �� I� J ~ ~ ~ ""^" ` "w"`d .....�,� ,,... /• 1 sj (,� �\ �j C'� ,✓ „ d f / i`� , \ \ 1t 1 t l 1`• i 11 \ fr► l l y f J +w .." "°" err ,w «.. +r. d ;♦ 1t '"� LO F I / \ i �'`' -1 J # t t I ) fir#' 1 01 1 j ;�' /; -' - �, �' / �� 11 �I ; • j` \ ''� �� i f - ._ . _ _ SEQUENCE OF CONSTRUCTION 1. Install perimeter silt fence and diversion dikes. ' - , r'.,,, � �• ~�.,,�,� j �t 2. Install Sediment Trap ST--1. + within the Limits of Disturbance, t J + t / / 3. Remove trees � � I I a i 4. install improvements shown .on plans, 1 I t � j } / abilized and I ( -4 5. ST-1 shall remain in Operation until site is st / ,' %� / L� ---- � •� ,' 4 — County Inspector grants permission for removal. I IT /. 4 + 1 a A 1 f 1 Z W 'I crn f + 1 , + f � ' / �^�'`" Warehouse Buiidiing t . 1 1 / 0 rI Iz�) \ \ Lam' -- `\ � 11 / -..,•,,.. ..mow ii ---- __ _. _..__.. _-- ---__— . `` ` ``, �-.'�-�, l j �to \ { 1 � J � � � ` "" `` ~.^•-. �' `- `'- f ~ t 19-----,--------`�_ l t 1 - . - J � I ..- , � i i ,/ ,�`er, �q� ♦ \� � � � 1 Exist. Storm Inlet--•�,,� I .- .- Crj} f' /' N C� ♦ \ \ l ( '`. l\ ! Exist. Once Building Ld e. .,. SignLLJ Yew 20P#� \ 1 t \. Exist. Asphalt t +r i+�... LL- LL- w- \ r 11 \ Parking Area 1I + x r r !peed L- "; 5O Y � ` \ \ % i y / y-------------_- - - - - - - � Z Z 71 tgn tl Variable Width Private ; 0 � '� / ,� � It ew Drainage Easement w j II Exist. Asphalt Z Z _ Parking Area 0 p (( Exist. storm Inlet y7 j7 !� New 20 Public 1 \ ♦ \� 1+ t Drainage Easement ,� ,' �-- �'' / / o� � ,; `\ ;t ♦ : \°� ° ' �!�+i � — lrLaSA Disturbance speed signiew-MPH 01 % f �` r' ers Lane \ � , � � � XNew CG-6 � x U -- - - _ > - '' -_ _ _------------------ Exist. CC�j6 __---------_- -- ----------------- - - -==-- � =_ - -� _=_____-== = \ New 25 MPH - �-j Speed Limit Sign / _ ~ ~ _ - 1T1 _ / \ / — - — > Ld W L CLLJ al. i�IJ 0 1 1 \t \ SHEET NO. -594 2a Ile C% 4 30' 0 30' 60' 90' C-5 10 ��¢� SCALE: 1 "=30' SHEET 12 of 15 PERMANENT & TEMPORARY STABILIZATION EROSION & SEDIMENT CONTROL NOTES ����1 A SEQUENCE OF CONSTRUCTION TOTAL DISTURBED AREA = 2.05 ACRES Permanent seeding shall be applied within seven (7) days after final grading is completed. ES-1: Unless otherwise Indicated, all vegetative and structural erosion and sediment control practices will be constructed and maintained according to the minimum 1. Install perimeter silt fence and diversion dikes. standards and specifications of the Virginia Erosions and Sediment control Handbook and Virginia regulations VR 625-02-00 , ?; 2. Install Sediment Trap ST- 1. TEMPORARY SEEDING SPECIFICATIONS:HUC JRti8 February 16 through April ,30: ES-2: The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land disturbing activity, 3. Remove trees within the Limits of Disturbance. Use Annual Ryegrass at 60 to 100 Ibs/acre, and one week prior to final inspection 4. Install improvements shown on plans. May 1 through August 31: ES-3: All erosions and sediment control measures are to be placed prior to or as g first step in the clearing. 5. ST-1 shall remain in operation until site is stabilized and use German millet at 50 llbs/acre. ES-4: A copy of the approved erosion and sediment control pion shall be maintained an the site at all times. � � O � County Inspector grants permission for removal. September 1 through February 15: 00 Use a 50/5O Mix of Annuaal Rye and Winter Rye at 50 to 100 !bs/acre. ES-5: Prior to commencing land disturbing activities in areas other than indicated on these plans (including but not Limited to, off -site barrow or waste areas) the ,r contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. z \ 0 PERMANENT SEEDING SPECIFICATIONS: ES-6: The contractor is responsible for installation of any additional erosion control measures as necessary to prevent erasion and sedimentation as determined by the N February 16 through April 30: pion approving authority. r i (09 W CONVERSION OF ST-1 TO SM-1 ������ water from wet ������ and dlSpoSe �f using approved m��h��5� Kentucky 31 Fescue - 128 Ibs/acre; Annual Rye - 20 Ibs/acre, ES-7: All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and during site development until final ca 0 � � �- May 1 through August 15: stabilization is achieved. !7n < 2. remove sediment from bottom of sediment trap and dispose of using Kentucky 31 Fescue - 128 Ibs/acre; Foxtail Millet - 20 Ibs/acre. rn � � � M approved methods. pP ES-8: During dewatering operations, water will be pumped into an approved filtering device. 0 © ? 0 3• Remove Rip -rap weir, August 16 through October 31: Kentucky 31 Fescue - 128 Ibs/acre; Annual Rye - 20 lbs/acre. ES-9: The contractor shall inspect all erosion control measures periodically and after each runoff -producing rainfall event. Any necessary repairs or cleanup to maintain UJ _ � 4. Install SWIM--1 outlet structure. the effectiveness of the erosion control devices shah be made immediately. 5. Complete installation of embankment. November 1 through February 15: Kentuck 3] Fescue - 128 lbs/acre• Winter R - 20 !bs/acre Erosion Notes: •th •t 7y",, ,,.► x CIP j � v ' C I 1 t LOT,11 L� I Exist, Office i \ [ l f Building 1 i 11 I L - \ 444 _ �_ �_----__-_ �P / � v cy ! �` !Exist. 24�" RCP---� � .... .� �� \ ------------ ' \ ----------- IP CE l Exist. Pavement Dba°a4aa°�°a¢aaa°�oo°aa6s+°a° vaa ° \ Lane (New Porn j OaaO°QOti4a°OOaa4p40Qa°a°4 aDOgOOaDa (To Remain) aooaooaa oaaaa°gaga aooaaa 0 Public i��C'�Y aaaaoaaa a°aavaoo�o°099° oaa ---..---_.--------- 1 Exist Trees- `�Td I;ernain� X _. ��-- ---- Lim y J_ 1) All Entrances except the approved construction entrance shall be blocked in such a manner as to not allow access to a si e. MULCHING SPECIFICATIONS: f Spread with mulch blower or hand. 2) The developer shalt reserve the right to install, maintain, remove and/or convert to permanent structure all erosion and sediment control measures required by this � � Straw or hay at a rate o 2 tons/acre.. Must be anchored. Sp d w y plan regardless of the sale of any lot. � 3 A video camera inspection is required for all storm sewers and culverts that are deemed inaccessible to VDOT inspections and are to be accepted into VDOT's nCQ maintenance and program and ownership. The video inspection shall be conducted in accordance with VDOT's v'idea inspection procedure and with a VDOT and/or county Z' inspector present. In addition, if high -density polyethylene (HDPE) pipe or pipe system, the contractor and a representative from the pipe manufacturer should hold a � Q 0 pre -construction meeting for installation. l .;> ALBE MARLE COUNTY ENGINEERING � � !IA� �'l' � GENERAL CONSTRUCTION NOTES FOR EROSION & SEDIMENT CONTROL ::D W 1. The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land � H � disturbing activity, and one week prior to the final inspection. � � � W � 0 < < , 2. All erosion and sediment control measures will be constructed and maintained actor°ding to minimum standards and specifications of the Virginia Erosion f�"1 % xxxxx t I -- - / i + ' ; , ' ' and Sediment control Handbook and Virginia Regulation$ VR 625-02-22 Erosion and Sediment Control Regulations. +--+ 3. All erosion and sediment control measures are to be placed prior to or as the first step in ciearin .s ,� C(�axxxxxxxxxxxx i ' i : , , t 4. A copy of the approved erasion and sediment control plans shah be maintained on the site at all Imes. x x x x x x x x ! � � '; / ' ° ' ` � 5, Prior to commencing land disturbing activities in areas other than Indicated an these plans (including, but not limits to, off -site barrow or waste � /" i �� xx%%xxxxxxxxx 1 f i areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan a provin authority. ( x xxx x x x x x / / 4 xx" j ,. {i,.ii=Till xxx xxxxx x x� The contractor i$ responsible far in$tallatlfln of any additional erOSlan cantrol mea$UreS neces$ary to prevent erosion and $e Imenta Ian as determined b the plan approving authority. Z `f�� ,' xx• �,� 2�, / j tit fs I PP 9 9 g P 7. A i disturbed areas are to dram to approved sediment control measures at all times drain sand disturbing activities and during site development until / J '� / l x x x'xC`� Vox x : i _ ( i ` -i t i i. + t i t , t 1 i ` i •f- i , - \ final stabilization is achieved. -- " 8. During dewatering operation water will be pumped into an approved filtering device. ; ,, t , , , , i f hall inspect all erosion control measures periodically and after each runoff -producing rainfall event. Any necessary repairs or cleanup ,o 9. The contractor s lit � � f •�� , i ,_ , . r � -- '` --'�;, � to maintain the effectiveness of the erosion control device$ shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area, and other ►�' * x K x x x x� / i /� _ - ���' �� ` -_ / i 11. All} waste material shall be taken to an approved waste area. Earth fill shall be inert materials only, free of roots, stumps, wood, rubbish, 00 x x x x - \ V debris. ♦ +O" ,,�* xxxx , , ' r' J _ �._ �„ ♦,,, �,� ` x x f� . _ _ 5.1.28. 12. Borrow or waste areas are to be reclaimed within 7 days of tom letion er zanin Ordinance Section _ - - +''" ,�` 1/ 5��s?, - - - .,._ - Mn u - wen M OPM. �,�---, _,, -_ ._ � 13. All inert materials shah be trans orted in compliance with Section 13--301 of the cads of Albemarle SF fist• �� �`y' ;" ��,, � - 14, borrow, fill or waste activity invo ' g Ind stria) type pa equipment shall be limited to the hours of 7: O0A to 9.O 15. Borrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, or order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because of slides, sinking, or collapse. IP !� ``�►'/ _ _ _j _ _ _ _. _. __ _ 16. The developer shall reserve the right to install, maintain, remove or convert to permanent Stormwater Management Facilities {where applicable} and all erosion control measures required by this plan regardless of the sale of any lot, unit, buildin or portion of the property. t 1 1 %/ i •i / i _ 17. Temporary stabilization shah be temporary seeding and mulching. Seeding is to be at 75 Ibs acre, and in the months of September to February to , ""' x ♦ l i ! < - consist of a 50/50 mix of annual ryegnass and cereal winter rye, or in March and April to consist of annual Rye, or May through August to consist of German Millet. Straw mulch is to be applied at 801bs 100SF. Alternatives are subject to approved b the Count Erosion Control Inspector. PP a / 1 PP Y Y P 18. Permanent Stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, `-�� ^ -- incorporated into the top 4--6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding IP ® '� 1 I I I I _ y - ^ shall be applied at 180 lbs/acre and consist of 95% Kentucky 31 or tall fescue and 0-5% perennial ryegrass or Kentucky bluegrass. Straw mulch is to LOG*ftJ" 1 .. ''� I ', I I I l - - - .- _ l - / be applied at 80lbs/100sf, Alternatives are subject to approved by the County Erosion Contra) Inspector. hump tom.' t I I 1 ' 19. Maintenance: all measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to be repaired 1 ` Pod O pp 1 l l I I I immediately. Silt Traps are to be cleaned when 50% of the wet storage volume is filled with sediment. All seeded areas are to be re -seeded when t * �r j i f _ � t necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned and t ` i , Exis Trees J re aired.cc , J lr Ei (To Remain} 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are na longer needed,LJ I t } u, L _ subject to approval by the County Erosion Inspector, _..._. ___- --- - w - - __ __ ___ 21, This plan shall be void if the Owner does not obtain a permit within 1 year of the date of approval, (Water Protection Ordinance Section 17-204G) aria cut - 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land disturbing activity commenced. (Water , Protection Ordinance Section 17-207B) .. *y ..��,1.�� �.} ��,• f, , `� '� �`� t '5 - - - EROSION MAINTENANCE SC"EDULE 1. The Site Superintendent or his representative shall make a visual inspection of all erosion and sediment controls on a daily basis 4 w w ~ 0 1 SF ,- _ _ until the site is stabilized and especially after a heavy rainfall to assure that all controls are in place and that none have been Knox shad pn iddd . �1( ` 1 / damaged. Any damaged control shall be repaired prior to the end of each workday to include re -seeding if necessary. 0 v Location to be coordPnated `>xith fire Marehd"s ofhx ~ , cn , ` `` ~ b N 2. All silt trapping devices shall be cleaned out at 50 percent capacity and sediment shall be disposed of by spreading on site or n �► \A0\ �` ` '� r hauling away if not suitable for fill, n :D Now 1-Story Bulding \ ` 0 O 8,000 srNe lSWM4 ` `` �� . \ I 3. Gravel outlets shall be checked regularly for sediment buildup that may prevent drainage. Controls shall be inspected and repaired \ 1 1 I 1 t�, S �, \ �,. \\ �� " '-•- after each rainfall and cleaned if sediment has accumulated to half of the device's original height. Nesx RetaPning Wall � � 1 �` \ \ ` '` `P a 'r ` ` � � dikes and berms shall be checked daily during construction for breaching b equipment. \ wf}landrail ` \ � \ 4. All earthen structures such as diversion d ke y g g Y r c1 Max Height = so' ` �aterat `� \` \ °,� \�1 Repairs shall be made immediately. 5. Silt fences shall be checked after each rainstorm to assure they have not fallen or become clogged with silt. All repairs shall be made immediately. 't \ ` new •` \Proposed • � \ ` ' s will be re -fertilized and re -seeded as .� `Tank \ nraihf1dd ., � ;ems 6. All seeded areas shall be inspected regularly to see that good stand is maintained, Area E-1 necessary. 7. After construction operations have ended and disturbed areas have been stabilized, all berms and sediment -trapping devices may j- 3 *o'` - be removed after removal, the round shall be restored to its natural or proposed condition to include establishment of CIO cn 1 y� �`3 permanent vegetation. Removal of an control is contingent upon approval of the Count Inspector. i p g y 9 P PP y p E..i00 lrq Stockpile " I i S - - - E� Area - -- --- -- -- ,. • { ' - i.4 Z- \ East Trees - ,_ �` �--� ,� - ... > _ _ .".• � t '� i S � � � (To Remain)-. - _ ' x_.X-x _ - ,.,. *"Exist Trees I 0 ,1 .. .. i .. (Ta �emain '` ` _ _ Lai its, of Disturban t ' - -- l �. �' Fes- Z t "� !z� V t 4 UJ %}Yr u) AN SKEET NO. 'IID� �'Al 30' 030' 60'' t9 � SCALE: 1 "=30' SHEET 13 of 15 Stone - 70, Mi 3" SM-2A Asphalt Construction Access 2% Slope-.-- -.- ..--- 271, Slope ExistingGrade B t. Stone Constructio Access L-6" 21A Aggregate Base --Filter Cloth SECTION B-B Existing A `Pavement ' = 2% Slope; . .'£ 12 * Min ---Positive Drainage *Must extend full nA To Sediment width of ingress Trapping Device and egress operation PLAN VIEW ----- 12' Mln--�--- 2% Slope _ �'j0���0 � i,%'• i 'It I ► i w tcrc• i t=i i'► t�i% i s,�°������5�i` '. ) ! .. `f``/�✓ •7 f / / % l / %Y ! i�`r �i ,i i ii i i � i r ✓ r •i i r�r i .� %��I��%1�I�� /��f�`'�+����j��//����.`ff,��/��i/��i��/f����ti�f�y/,*��ft�,fQf�+,�f���� f�sl��'�� fQ/Q'����Of/��i1��f�\�������\'/��j�"\��\��'�,��\f t • • d 50 = 6 0% ---� d = 12" T .SECTION A --A , FILTER CLOTH KEY IN 6"-9% RECOMMENDED FOR APRON LINING SHALL BE ENTIRE PERIMETER PLAN VIEW PIPE OUTLET TO FLAT AREA WITH NO DEFINED CHANNEL OUTLET PROTECTION DESIGN 10-YR La Do W dso Structure Flow (ft) (ft) (ft) (in) (ifs) SCG1 2.4 8 1.25 9.25 6 SCC-2 2.97 8 11.25 9.25 1 6 STR-1 4.01 8 11.25 9.25 6 Basin Outfal1 4.33 8 11.25 9.25 6 OUTLET PROTECTION-3.18 (OP) -52 SCALE: NTS A 1. SET THE STAKES f}" i0- CONSTRUCTION OF A Sly (WITHOUT WIRE SUPPORT) 2. EXCAVATE A 4" x 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. SHLL I I-LQW INS IALLA I IUN (PERSPECTIVE VIEW) 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. POINT A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) 3 SILT FENCE-3.05(SF) -52 SCALE: NTS di M t+_.,-•. /c; ..4 , 7 y. tt � r � � st 1` t 1•y x \lt \.� \ '',^ �\.., \ � ~ � ���I QRfi_ - ..-. _. \ ~ �,` \\ � � �� - - _ __ .-...-":).S �..,.. , / -,-._ _-_ ._._ __'. _ it I E tsx lafsaas __. _` - - `` LOT 2 (To Remain) -- le � � � �-..a-..a� `�` � � eR,$'`. � , ..s •��'s`•' Si.}`.�,, -� +�'• , "''!`� , m CA arras_ -------------------------------- ! i Im0a is a.oY aftv w,vy ars. •� ' • . `� �\, \ \ . ` ��+� ' 4t '•� t / 1 # xaazam 1 t I, \ 1 ` Exiist*98 '. �' 1 { � \ / � I � 1LL`� e�r�ruo\ y.�ql♦-� ��aao �` ' � we � \ �� .•, ,,�t •1 1;t �� \� \. ``'S4p____ ____ 'brainage Urea r.;.& Ile 0'� sediment Trap --------- \ Tc ssi -- - t 1.98 Acres if ili 1R� 1f �lIL�� CIS fE��if iE'i xL it MI7NN=n an0=10 • o o • j�fiiC ��i �� ` 'I � ` \ �1 ` ,•` ' \ ``•...- 3�r --------------- Exist Tt@a3 `'�„ "'•�' �- r / r Tc 59a56 Exiai Two (To Remain), _ - / c-- �____^ �emaimn QD -- __ - \ ,0 000 �lfrlllMf0 'lk yl�,si J1---.;•,. ''---._ \ \ �\ ~ -- .-. -.._.. #�'14 x11y1lM+U allrr�'"**� f I I 50' 0 50' 100' 15L DRAINAGE AREA FOR. SEDIMENT TRAP ST-1 \C-521Y SCALE: 1" = 50'�... SCALE: 1 "=50' a -41 CLASS I RIPRAP - sir+�'•::�:•: WIRE SCREEN CURB INLET Compacted Soil ........... ............ \ IN i I 1 �-I i i 1 I I -•.III I 11= I------ 4.5' MIN ---- --�- *GRAVEL FILTER RUNOFF WATER OVERFLOW WITH SEDIMENT -L i SEDIMENT ---' 2" x 4° ` WOOD STUD LCURB INLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY TO PREVENT EXCESSIVE PONDING IN FRONT OF THE STRUCTURE. *GRAVEL SHALL BE VDOT #3, #357, OR #5 COARSE AGGREGATE. INLET PROTECTION DETAIL-3.07 (IP) SCALE: NTS WEIR LENGTH **COARSE AGGREGATE FILTER CLOTH EXCAVATED AREA OUTLET (PERSPECTIVE VIEW) = r H GROUND ELEVATION Dry Volume D2 ^� R "Aren 1" k Wet Volume I D1 EL = A CROSS SECTION OF OUTLET TF,MPORARY SEDIMENT TRAP-3.13 (S SCALE: NTS DIVERSION DIKE **COARSE AGGREGATE SHALL BE VDOT S#3, #357, OR #5. s FILTER CLOTH **COARSE AGGREGATE H GROUND ELEVATION Elev(Ft) Area(SF) Storage(CF) 549,50 0.0 --- 550.00 1909 96.5 CLASS 1 552 00 3623 5628 5 Wet Volume RIPRAP 553 00 4622 10250.0 Dry Volume 554.00 5620 14872.5 WEi 1!ltETV.tlE.tJN16 DRY 1ICli.tA(+lE DRY VOi :t7ME. M A s c x w WSR DMINAGE VOLUME 1. VIDED REOURED 102 PROV100. LENGTI4 AREA FEWJRM (CF) (V) t 65 7 52 .53 3 12 196 3546 2 Ste. 3646. 1 4W2 f ►a as • • �. err �. one, z � W 0 0 q 0' w C V) SHEET NO. CII5 2�� SHEET 14 Of 15 War4hM9eBWdbg jt J 't 11 11 it j ,o 41 5 f .J %a { / f --_-{-.----- - \--- ..--•----- -- -----—^--_--�-----�--------�—_____ , —I It ce 60,1- Lone ew \.-.-�i ��.=�.----✓l .ems----s-.gig-� �;�-�-m�:�n.�g.m.m.. a.a,�ffi� _.___—_—_.__— — -.�.. ---.ate. T.-- --.. --. ---.—.,T.—.s.-----.a.�-..m- __ - -- — ___ _ ___ ^y'Y �^` v vr^ /" I ".v' v ✓" r "�'-SP ter' "YV""y ✓ v 1/ l t Exiat Trees 600 = QD i 643 X\ POLLUTION PREVENTION PLAN —529 SCALE: 1'=50" AIM • # u • # PPP LEGEND PT PORTABLE TOILETS SCK SPILL CONTAINNIENT KIT VWA VEHICLE WASHDOWN AREA VFS VEHICLE FUELING STATION CWA CONCRETE WASIDOWN AREA WDA WASTE DISPOSAL AREA cc cr) If If Ld / 1 /;' / <•`o�` `�`O / �y`2i/' ` ` � s s , a t t"3 / Fl �%f 1 t f 1 i{{!__7�{�3 ri{t lit Ij Lolflv (TO Rem*) ! \ yr, 04 Stockple - ��`h� AMC.... _.. ^€�— -� rr� `,,,�., �;,'----__---- ��� ..-�, - --,- --- �-. � _._ _ W of pisturban e {ra «rte;� '-4 'F` \\ - 04 t- i I 1 SHEET NO. r C 5 2 1 50' 0 50' 100' 150' Lim_ SCALE: 1 "=50' SHEET 15 of 15