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WPO201400067 Plan - VSMP Minor Amendment 2018-12-03
SITE DATA. WPO NUMBERS: WPO-201400067 LEGAL REFERENCE: TAX MAP 61, PARCEL 155 SOURCE OF TITLE: DB 1134, PAGE 635 PARCEL ADDRESS: 1025 EAST RIO ROAD OWNER/APPLICANT: CHURCH OF GOD; THURMAN HENRY, RAY HENRY, HAROLD HAGA TRUSTEES 1025 EAST RIO ROAD CHARLOTTESVILLE, VA 22901 ZONING: CO - COMMERCIAL MAGISTERIAL DISTRICT: RIVANNA SOURCE OF BOUNDARY: PLAT BY ROGER W. RAY & ASSOCIATES RECORDED IN DB 2108, PAGE 354. SOURCE OF TOPOGRAPHY: 4-FOOT CONTOUR INTERVAL FROM ALBEMARLE COUNTY GIS MAPS (USGS DATUM) A VISUAL INSPECTION OF THESE AREAS WAS PERFORMED BY MERIDIAN PLANNING GROUP ON NOVEMBER 15, 2017. 1-FOOT CONTOUR INTERVAL FROM FIELD RUN SURVEY PERFORMED BY MERIDIAN PLANNING GROUP, LLC ON OCTOBER 11, 2017 (USGS DATUM). STORM WATER QUALITY: STORMWATER QUALITY SHALL BE ADDRESSED WITH THE PURCHASE OF NUTRIENT CREDITS. STORM WATER QUANTITY: NEW STORMWATER MANAGEMENT BASIN (REFER TO C-600 FOR DETAIL) Land Use Table Description Pre -Development % Post -Development % Buildings 31,700 10.5% 37,687 12.5% Paved 124,205 41.2% 118,218 39.2% Pervious 145,878 48.3% 145,878 48.3% Total 301,783 100.0% 301,783 100. 0% SITE �a Q 2 VICINITY MAP _ c-5o SCALE: 1 "= 1000' SHEET INDEX C-500 ......... COVERSHEET C-501 ........ EXISTING CONDITIONS AND DEMOLITION PLAN C-502 ........ GRADING PLAN C-503 ........ STORM WATER QUALITY CALCULATIONS C-504 ........ STORM VOLUME CALCULATIONS C-505 ........ EROSION PLAN AND SWPPP C-600 ........ STORMWATER DETAILS C-601 ........ EROSION DETAILS C-602 ........ POLLUTION PREVENTION NOTES LEGEND PP POWER POLE WM WATER IVIATER SSM SANITARY SEWER MANHOLE PPE FINSHED FLOOR ELEVATION TPD TELEPHONE PEDESTAL LPx EXISTING LIGHT POLE LP NEW LIGHT POLE WPx EXISTING WALL PACK WI? NEW WALL PACK TC TOP OF CURB P PAVEMENT TOW TOP OF WALL BOW BOTTOM OF WALL The total disturbed area for this project is 0.50 acres APPROVED by the Albemarle County Community D, 3 op ent Department Date_ 2 l File ateI�1�7 j TMP 61-156 COVENANT CHURCH OF GOD DB 1804-675 ,t t ,f t `1 1l 4 t i 1� i` 1.. This WPO Amendment is - limited to thie improvements Within the hatched area shown hereon. Refer to WP0201400067 for other improvements shown and are currently, under construction. 1 i PARCEL OVERVIEW —50 SCALE: i" = 50' a TMP 61-155 CHURCH Ofi' GOD, THURMAN HENRY, RAY HENRY, HAROLD RAGA TRUSTEES 6.91 ACRES DB 1134-635 DB 3527-475 Ma on se \, QJ J 9 o s 50 0 SCALE: 1 "=50' 50 100 im A 00 «} N 0 !J •- O tJ) d o QLli m m c� U z LIJ L W r..� Z *0 }�CqCU � ao �D 0 E-, a a z W z W f70 w o � i� Z 0 I-- a__ o 0 v w o 0 U © ► z 0�D Fi E4 w � w Z [ J 0 E-- W J W � W 0 � a T ui SHEET NO. C-500 SHEET 1 of '` Remov a reinstall existing f i / fe qs- required for I It I /� / / ; ' onstruction. Then reinstall if '+ wafter construction has been I If t , " / '� ,-` ; - -i .''/ completed. fill I / Temporarily relocate existing la � i / - %'�•' °°,°° -'�\° equipment construction. y q P 9\ I it ! / -/ i :' -�`�' `\`���,.-' \�\� / Reinstall after construction has •T It I / f - . , \ been completed. 0 I If t f / "' i �� ice/ \� �\ X—X—X—X—X—X_x� x11 r------------------. --------------------- NA III 111 ao `-' z Q Li © dU H LPx + 11 SPACES lt LPx ca V W W X-- X -X '�i � ,�� © z � S�P�,F. j Exist. 8" Roof Drain ���� w /` To Be Abandoned Sawcut�_� I It I Exist. Pipe Nk,- / \� .��\ Pavement �Nz z li I (To be Abandpned} Asol WP I If 1 1" W / - i' ` \\ I it I / "I` r' Ex. Sanitary \\ \\ r If 1 z .- ,''- MH Storm Inleit and ) A- WPx \\ i` ! orm End Section '' PP r' �- curb (TBR) LP)K S?�\Cj WPx j it I To e-Removed Abandoned Sewage I It i Pump Station Tree ! / / I I! 1- -- -- — __45.5-. (TBR) /J Ao Be Relocated - ! EX-.- Storm / If i - - - -- f -455_MFf i \. Tree ,r� /� WPx I if t - UY `- i i "Old Testanwnt" �-, / /V� `Be, Relocotgd- r �`' Sawcut Existing Building Pavement) 11,100 SF - /+ FFE=466.79 Curb II Shrubs/ To Be Removed E tn1 !/ / / /��f 4 11 x� '� 1 , LPx ! ►►--- Portion of Building r< r /�/ / / / / / / / /� (TBR % /l / / .r�r / // Side walk To Be Removed . To Be Removed I It � t � �; �_, S/ /� / / / / J �A� � I - / / / J f / Aspk(ali- ,.� f Ir "! •Pa�er // .� FFE=466.79 !`,-' ! !I(,/� r ,, x `, •`� I 1 ! �/ / ! / / /� ,Pq�oet�etxt / lffit�l` ,I 1,q Wii//�!//////!////////o/!/�/ ` •. STAIR LANDING _J '�,� .� \._ _.- _ e. • �`.. �• ••a •a / / 1 a IIt�-! I �!!J///� -� !f!/! !f /' ! Ci. �a !!/ FFE-4B6.2 I '1'!/// //// F.�///////� WPx /// ,Curb ,' Curb WPx To Be Removed/ / / i Retaining Wall / / It i ; t t `�. t t- / �_ R `, Landscape Area' / / / / 9 I r 1 , i / / r ! �`_ f_. — :. �(-- = - — / J J / ! o p ! J To Be Removed' ' ! r t ! c// /�//!/ WMQ / ?—�_�- /ToBeRemoved, �` `� � � I � J / J / / ! / / I��-- ,--,• ._... ; .... ? yr. �"' ! `. - •/ / / / / / / ! ! / / 1 0 /%. / / / / / /! !,/ / / / Glir� / i' / / / / / / / / / / / / / / / / Concrete Steps / / ! p / ! / ' FFE=471.31 _A "' 'F. `1-..�.%!� -/ /1 / ! //; To Be Removed ' �\ j �• �/ b/o//!J//JJJ. \ -•._ �.�._ /,r Stu s // J J:/`, ! / / �`�! ! / T6 __T♦/�%/%/!////�m Retaining Wall/// i,v fin' To Be Removed. /J 4 As altPavement l.andscapeArea /!%�/i��//ffir f?] foBeRemoved /�/ r // J�/// 'J/1!rJ TdgeRemoved // / �j move 8 P // �/ // , I Curti / / / / na .•-i 040) CQ � w1,c\l_,a % o c� , KJ °°°\ 110 iJ I LPx W �, ° a i ii 1 Parking Fclir>t Stripes I ` -To-Re-Removed it z I�, I w II 11 -- - P- `Pairtt, Stripes II I pTo Be Removed f� If It II Cu & sidewalk To a RemovedV'' Sawcut~_ Pavement - it I ! * CT _ t tt ' m 11 ; W 1 1 Parking Paint Stripes 4 Asphalt Pavement I To Be Removed Sawcut /! /!'J//� .-/ !!I//�//� �i I !!!!/!/ !//// :. 4 s' To Be Removed —'II rr!!/�',//� r ! / Ta�BeRemoved // /////,Lo Pavementif s/%!!.� J /�//! --, ,� , /!//, //JJ ,,✓/J /////! / f I t- ca -'be __/ Curb LP to be _ % ! ! / / Gas Meter &Main �, i I ?� (TBR / LPx J / J o / / 4 . To Be Relocated by 2 .. Sidewalk ti i - : -- _,... ��..-- -` Tree' --__`��locatgd �•.- � �- _ ! /s`! ! ! ! � � / • : �`To �� Removed I ; r--- -- _ ,�-- / ! / / , , = FFE=471.31 Charlottseville Gas tcz_.b relocated _ _ _._--CiMITS OF DISTURBANCE Curb To Be R_emo�reil/'/ - FFE-479.31 z 1 (� � P Q' / ' !` � 61 _ - --' _._� j,r'- _ — f `__ — .� _ -__--- / / �'y/ � •:a , 4 a 4. ,� , HVAC Unit � r •'� • • ..: ... .. - 'S: ` • i Z :2 1 it i r x. t rm l -- _ f Black Wall &Concrete Pad To Be Relocated �` Sai�cu I ► 11 I ! ; I _ / i % ! / ! ! / / / / 6, -, ! it °� Sawcut ,, .. To Be Removed =a . _ o I II i r I i I En Section i" j l ,,u `� -a ►t ' a FFE=483 41 4 - 0arb,'; I _ - t 1 ,, / / / / 18 SPACES , Paveme, . _ - i. ! ! 7p (� { n a 1 y tG / VE�3.1-4. Q : ti 4 . < 4 v 4 Y 11( BP.: ms!� -� ! / r �/' / Curb & Sidewalk �. ' a ` I If I ® - ,- To BS Removed - - - �. — — — — _ — — . �, `� < a Overhang U ! u I I J t / _� / �, HIAG 1Unis� \�� c -TU l'edesfgl.' / Sawcut Parkin Paint Stripes 11� \ To Be R oved - 1 i / Pavement -To-BegRsmoved p / To Be Re{coca � \ '� `et nin Wa I � i I 1 11'—`.I ! % / / \ �oord(nate wi Own a �, g '. To R ream \ LPx _ Second Floor \ e 'Removed., I II I f� / -'' �: Entrance Orrha tt ' i j � \ .. I II I 1 _ / Ta Be Removed `J r . co :3-r Entrance �� �� (. ref -'�P3ad ` Cn i ;., '" i r / i ! 1 Overhang 1 Tot a em©v d -— �\ i i z killilif Sawcut 1 u II! I Pavement I II I I / / 22 SPACES - - I fl—I " i---------------- I , �,!11 SPACES II �� �/r W // / (�4 _ _ ___-----_........._...---- / /' �\ / � jl {I i - ✓ ^ I�i -------------- LPx - -_ LPX / `\ �� .it �� \1°` _ J f�� 1/%�w �\� � /�.� � ,• ! � r--T-----•---1�.. = LPx __--- _ ``` / •� 1 /�'` / /, �1 F l II I r / 1 LPx ��� ;' t �{ l II I I _ _� -- - i--I -'" ----------- ll l r _ _ _.__- __----- _ _ _� ____--_- _---------------------- _ �_� -\ } //'i Ji' ///' //' / i� Ef l 7 SPACES I I �: ._ .'� - _ _ _ "' -- j -' .P' ` /' /� / G' ,�i r4 18SPACES _, ..N z E ! It I i i __ J f 1 / z { 1 II I ! 1 / % '` 10 SPACES i flf I i /o'!/'/ \ f�'' IJill � fill f II I j \\ ______Uj ------------------1Ji ;.�✓ ~ I II 1 -_ / ' �� lu I \ I-- r F_ I it 1 + \\ ,/ i 7 SPACESIf I Ld I II 1 I \ 19 7PACES ! 1 \`• f,-,' ` f�� 0 I ft I ! \ i f/ tl dr) III I i,-•-..-...-__�_ -�----------•--------------------.---------- --- f ! . �' � r/� / ._____ _____�- _----__-_____f SHEEN NO. AVftL 111 1 1 \lp.501 fill • --• --------------------------------------------------------� , 20G I Ii I Existing Monument Sign ' / Portion of Existing Pavement yam. SCALE: 1 "=2.0' SHEET (} (To Be Removed) , " To Be Removed (1,380 SF) 9SPACES WPx Install Cap on end of existing 12" Roof Drain Roof Drain To Be Removed ".New Testament" Existing Building 20,600 SF LFE=461.31 MFE=471.31 UFE=483.31 WPx HVAC Equipment & Concrete Pad To Be Removed 111 I it t x- X- x - -- x-- x -- X---- x -- \ ..._.-T --- I it I i , pt\\` ' e X_ x--- x- /j I \ % t It I Its �f---____ m � it I ! II I Q t�'\\\ ' \ ` -C.3 / / 1 \ \ \. � % I u t New Ripa'w -- - / .' % Ex. Sonit•,ar Exist. Domjni�n P F'}1 Ex. Storrs Virginia --Power w �`� ap \\ \\ p e\\ I ►I t End Section Easement pp ,��\�\ l G��° lew .0 \ B 3527-475 �.� �o'`t Curb Cut,/El -,.' \�\ \ _______________ _____________-______�!\\ ',•�~ ` ` n 1 II I Ne Concret New Rip Rap I u 1 e nine -Wail B < 'TW 454.5 �� Height 2 �W 454.0 r -- -- idth --6 /E -New SWM Basin5510 It Exist:--0rr�i-stage fix- Storm BW 454.7i• --------�'-� / ,' ,s '• , ``� � _ _ °`� I U � -___ _€stunt --Mf-i---- J �, , _ / ew Rip Rap ,� a . <2 e\ _ I • `v t tl TC M 1 It I DB--3527 =47�4,6 ss 50.5 !!Y tIt 1 - _.. _..,.;_ W 455. - �� 1•, 457. / / 1 t IfCup 1 li 6.10 ,�/ . v U �•• X 457. / TC� 457 II t tt t Ex. Star i' I 45 f0 BW 455.0 - 45 TO ME 6 if 1 11 F. MH 8 455.7 2 Curb Cut 1 _ I._. ___ _-- -- f I ` I It 1 r o ` , / I{ 464-- t It t.. ;\ f t TC 15 . f o I If i 457 Q'if t if 1'• `� TC 459.25 �_58 -_....._ TC 5 m ` Relocated- P 61.2..- �j i~` ! tr t \ t t Tree . TC 45850 IW Stop Sign TC 69.00 -I� -1• - �I 1 (�� Q 1 _C cam+ .g/ t4 i lY�_: a Q ~\ �G 67.75 tl i TC 6 J 5 ��6 ant / i 1 '� 4 t it t 1 1 - amain / ! TC 464.50 It I ` i in j 100.E {f - Sto Sign - II TC 45$.90 --- ,. - 4 q "y ro `t to TC'�•5' TC 66.50 TC 4�1.84 .' ,': .a IC 6 _- o n 41 01 462:I :r r I .22 _' -- �-, �y t �.` • :� , • _ ' a TCf P 66.5(i % - : .:y-• '- 1 I ...o\! r - Relocated TC 463.81 �I Tree '-P 462.30 Sao TC 4�3.94 � 1 1 '' `,:� Nr w Front _ :��t •' = II `� >> TQ 462.80 - / °` \ \ ,'' Y TC P 66.60 Addition �' E / \\ / 4,990 SF .TC P. o.81 LPE=466.79 YFE=41. ' 1 a'#A TC 463,00 .T P 462.8346�.3TUFE=483.31 r i III II I _ I►'I iII II •`-.. / 463.24 TC 464.68 ''""! P66.90 'a 10le Relocated' 44*40 Ci ht ale = �' " aIf Stop SIg - E(14i(TS ©F DiSTtl,Eif3ANCE = "Match ``' : �; '`a 1 \ -470- - TC 70.50 4/-�� _ - - _ _ C 465.01 Y P �. ,� Iif I a= ,-' ' i a -�re�.------�r,_ _ . _. 4- • , q +. . . - f, ,, , .Y �.� .,,\• �"�..® - , i ,II i �`` I It 1 c �.�' `� r _ j •`' - ---- 6' -- - -- - __ -- - r .-. \ . a r•; �. < 1 En Sec Ion z 6�) / r� ( G 464.17 65 i >f / - 1 \\ ��• I I . _ .. LISt. ° ( c,� tC vc� 4t Y " - '' - ( `• - 1 ( . J Y q m Y I �. a • a � . ree CSY % - _e ^( 8 X S� IfIC{i• { / ! >' r 4 }I, e� ,• • a a e Y • a a ® • � ° i r i I ` \ / / / a Q i a i . Exist. Dr Ind @ t f / D�O A.4A4. I! (+ + EsrTtint� ,� / ` i' '! / '/-:- N w DB 352 -475 ( -� » _ �- ,.. Nl� ' •$ .-� - -- - _._. - ^ .- � .� �- - •; ;. �.- ( / i First Floor 73.3 a ^� \>; ' '� ;,r ' ,. 4� f TC 71.15 ! xi t• r �TC57407�1? 465.35 TC 466.30 TW 7,1:1 \ ° Courtyard i B 71.3 "� � 1'• _--J TC 71.00 1 u I ire D�,t :�. II I t TW 73.,+ �, �� \ TC 71.52 1 ` 1Q 4. C '4-' 4 .. f If t I1 �'`�' NewtRetaining Wall C` it i \\` Max Height = 2' f if I - _ -�• _ -- -.a-_--.-__-__._._JI -- - I I if I /%' if le [ If I 111 I ! i 11 III '. I _j i 11 I I f \\ 1 -•__ ___.. ....__..._....111 / •.-� r' `� �' % �i ( ll ( I 1 \ Ir --__-_-_-____---7--_--------------------------------- --------------------------a �� 20' ��' 0 20' 40' 60' 1111,o SCALE: 1 "=20' N tia < a -' >- °#n p C cc r^ Z z LO 0 o Q Q m m m 0 U U -> CL 0 �! 0 U-I S C] U z z i•--0 0 02 P-, o 02 W a I--� ul r4i CQ W 'O F rl W �` W�x z W W I� W OD a � z 0 W 0- 0 G.) W i- Z :3 U O U O t� 0 FA1-D�4 1�1 z 0 Z Rr E h"r W of _ a_ Jul SHEET NO. C 5 SHEET 3 of 9 Project Name: Date: Linear Development Project? Site Information Post,DeVelopment Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) Wonstants Runoff Coefficients (Rv1 SArtnual Rainfall . iridies} 43 _ iTarget Rainfall Event (i aches) 1.00 )Total Phosphorus (TP) EMC (mWi_) 0.2fi ;Total Nltmgert (TN) EMC (mg/L) _ 1..86 ITarget TP Load (ib/acre/yr) 0.41. PI (tlnitless correeii.ort factor) 0.90 Check: LIMP Design Specifications List: Z013 Draft Stds & Specs Linear project? No Land cover areas entered correctly? Total disturbed area entered? V A Soils 850115 C Soils -- D Soils Forest/Open Space Q•02 0,03 0,Q4 0_U5 Ntinaged Turf 015 020 0.22 U. 5 Impervious cover 0.95 -- 0.95 0.95 T 0.95 Land Cover $ummary-Pot (Final) Land Cover Summary -Past Post ReDev- & New lmperviops Post•ReDeveloprnent Forest/Open Space ` . \\\�� role st/opert Space <z lr$ 4 „•*-�, r -...__-_...__ __.__. _,— fix; �,�,r� � Weighted gv(forest) r`" k " Weighted Rv(forest) - _ %forest (}�o °lv foreaat 1 Es, Managed Turf Cover� < i Maria ad Turf Cover (access+) Y . r Weighted Rv turf)N x W i h ed Rv (turf) irQ % iV.iarl@ Ed Tu Ff .'' ` t'.' . i. i ..__ --.__ ...—._.._..•-.._....._ � � ��' ti R %Managed Turf Impervious Cover ;Y` Z ➢��� ,t ReDev- Impervious (acres) ,:: " ' >;>r, Cover (acres) Rv m ervio s \\. {L p u) '` Rv(impervious) %ImperviousVv 6b"e 961rnperviaus Total ReDev. Site Area PinalSiteArea(acres)�' << z 3 (acres) Q ` wes_ FIrritl AtkSt t7ev Sit fa Rv ReDev Site Rv < f �h ')• a. \ ih:..e ,� c�T y �Za3Z A,. - n T.I'�!:t l( T'Itt Vt�ItdlT► n Litrl �;Q . =---- Final Post' Development I Pest-ReRevelapment/ / Treatment Volume 'sin } £ s TreatmentVglume (acre•ft) F Sw 3 Sfi.3• .f1�' x�N„ i xe \� Final Pr)aL^ #;r v Post-ReDevelfl ent F < < a Development ice► N. 1°2Fa E TreatmenWolurr2e *�E a: F Treairtxerii Volume (cubic feet) (cubic feet) Final Post E'` < ,rs a I Post-ReDevelQpment Development TP pry i ;4 jGY. i Load (TP) I F ` �fi k f. Loadkz\<7Y;Fja✓ss a (ib/yr)8 <yn t 9 8 (ib/yr) lzh✓ iyl ey4 r I ��a�}5„ ¢ Y Sjj Land Cover Summary -Post Post�Development New impervious '4 y s< 4 E5� a ., #M'PLO" New Impervious Cover Rv(impervious) dn: ��v'sr c1��� 1' ♦ v +r rlA y 5 Past -Development TreatmentValumey$ t F7( y Y � >tc x • Post -Development Treatment Vol urine (cubiefeet) / a/ s PoAv.DeveiapmentTF Load (ib/yr) . , Final Past-DevelopiTient Post-ReDevelgpmpntTP TP Lead per acre s{ 3 7 Load per acre (Iblacrelyr) (Ib/acre/ye) Sax. Reduc ion Require (Below Prt— ReDevelopment Load) r Site Results (Water Quality Compliance) Area Checks FOREST/OPEN SPACE (ac) IMPERVIOUS COVER (ac] IMPERVIOUS COVER TREATED (ac) MANAGED TURF AREA (ac) MANAGED TURF AREA TREATED (ac) AREA CHECK Site Treatment Volume (ft) Runoff Reduction Volume and TP By Drainage Area RUNOFF REDUCTION VOLUME ACHIEVED (ft3) TP LOAD AVAILABLE FOR REMOVAL (lb/yr) TP LOAD REDUCTION ACHIEVED (lb/yr) TP LOAD REMAINING (lb/yr) D.A. A D.A. B D.A. C D.A. D D.A. E]E_ AREA CHECK �_` �/ . } J pp�t('' 2 r]',S.` A 4i'J.4 ! E����� b Y i _ �,l A �y, � <c- � �, Y ,F$.��� ,c� t•'-.c„-n-w•T' A` J��X� Y4�� t fi f!F ��-: �<��l9 /,:a y wj„-wit''#B�' 6A��$.�'«+��`��\��3q H� ��'�y ,.°''4.f"'yS`K:'` [�-ik-' - ,%u'35., "kaFf<• ,x'Y'. �.%E f r'�`'yt: oR• \ i t J iWg f .. ..)ir..Y.n.,iN b r ~ ) i J p `J J § ) y.YXn,,:'i '':' Ys k �ty,(y[ f 2.,`�x�✓r 1wr`'E 7 S : So 0,,s%wxN"G }''� �/ RJ T1. ,Z'�Y$//=`�tt*I l \y \<r4:Y\ � 7Y��-� X}. � C _. i I 1✓ \: � YC «" ..; { t f ��0, 1. FS .$. f :.sF f /���, a F Ai. ``f 5 N S/y�3li��y�; -'��4 <�i aa,., VI►.. 'IX r..: , J /, \ F3r�j ��� '� `*` b��-t`c��2G%�' n� �t n i�ry�h ��,�gi,'?3Xij�Sf �.�L LL•Y r �r t ykn rr: t-,-,...;�,.-,-..r.a-•�^c�m•-�'2E'.� m d'e�2' 4 �ii�� k us`.Y,� �f n 9 ���t F- —=-^�-- _ ®l0• OK. OK. OK. OK. K. oK. D.A.A D.A.B D.A.0 D.A.D �I7�A E 11 ', n � k�,x 3 � � `C� - N6j�� � t i 4\ \ l�t'.•r4�EJ f� fir. r" t:wrf '. r \ S / ... t..., ,.... n...,. ».,... , ai'•vn j Ew,...�,r f'.., ..«LL: i,v," �, 'q".ts !✓ 'w%'K•`kY'h�a• s. adk ... `. r y/f �•,�r ✓"'x-n i .�.:�...., 2,t s..�,. o,V..,,�, i$ S 3��.= ±...,>. : \y ✓? ��r. ( 2,(�,� ,L\"F ax,s+'1_. k�N\:(� f>' f..% �j ✓P i�Y 'Y.y� �Y.rG@✓`-'c6lRdi�ty�.Y�S`5i` t4��f )`+%y 5� a ���J, {{hh..{{ NITROGEN LOAD REDUCTION ACHIEVED (Ib/yr) Total Phosphorus FINAL POST -DEVELOPMENT TP LOAD (lb/yr) TP LOAD REDUCTION REQUIRED (lb/yr) TP LOAD REDUCTION ACHIEVED (lb/yr) TP LOAD REMAINING (lb/yr) REMAINING TP LOAD REDUCTION REQUIRED (lb/yr): Total Nitrogen (For Information Purposes) POST -DEVELOPMENT LOAD NITROGEN LOAD REDUCTION ACHIEVED (lb/yr) 4y REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yr) Chesapeuh6 jtay Nutrient Lupd'fruet• LLC 6735 S. Labcunum Ace tUChmund, Viiginiu 23�31 Exhibit A CUESAMAKE 13AY NUT1UKK .LAND TRUST, LLC - 0 W GROVE AFFIDAVIT OF PHOSPHORUS CREDIT SALE ( tiESAPEAKE BAY NUTRIENT LAND'TRUST, Lf C, a Virginia limited liability company (the "Company"), hereby certifies tine following: 1. Pursuuut Fri that cartaiti Purchase and Sale tlgreenient dated November 8i 2018 (the "Agreelnvne ), between the Company (as Sellai) and Covenant Church of Co ("Purchaser"), die Company, for the benefit of the ('utchiser, agreed to sell 0.09 pounds of noopoint source phosphorus Credits to Purchaser and retire: die a34oelated ratio oftionpoitii solln;0 nitrogen Credits at the credit getwr#tinl; facility iu the arnowit of 0.22 pounds of tl Ug r-ICdlIS� 2. 'file Company and the Purchaser, as of the data hereof, have closed the transaction contemplated by file Agreement and the Company has sold to Purchaser the phosphorus Credits. WITNESS the following signature: CIIESAPEAKF BAY NUTRIENT' LAND TRUS:I', LLC, a Vim" is limited 'obi 'ty pony M;+Hager Date: + l Swain to and subscribed before me this _V day of • No r„ E--r>is��c-_, 2018, by Brzw<+Y' r _ ,<cr/ — Manager, on behalf of Chesapt!4e Bay Nutrient Lluid Trust, LLC, a Virginia limited Liability company. My couuuissipn expires:,' -.A tua 3; I- z i City/County of: J c..r- Notary Public VSMPYennitNunlhutYe dw Fenotttee: Coyataat Ch urA of God Pro e R f• :C venanl Chur h 'G R to tr JII f ct a vfeaee.,-X c ofGod. ! tU25 East Rio oa¢ C;ity u[Clwr t Phosphorus Gredtls: e.UR popnds" Assadated Nitrogen C,mdils: U, 22 pountss $COTT A rtEED. tK1.TARY FUELIC CLcsapeakv 3rey Nuut tLund'Tr t, LLG REG13 i1QN 436e937 Ga&(iro.e t GgMgtO THOFNIRGINtA 1v1�1s.a18 1'uchr,ec and Sale Aep-w nc COgiM 1110, Okf e$ WCH A M1 AFFIDAVIT OF PHOSPI 0ROUS CREDIT SALE SCALE: NTS 1Adju,5.ted Lund Cover Suminary: TP Load Reduction TP Load Reduction � t 4 Pre ReDeveloprrrentiond cover minus pervious land cftver(/arest/open space or Required for Required ftir New � �t� tE t � � Managed turf) acreuce purposed for new impervious raver. Redeveloped Area lrnpervi4us Area � (Ib/yr) (lb/yr) t �I Adjusted total acreage is consistent with Post-R.e0evelopmt:nt acreage(minw,• � t + �*��1 �`'++�i#t t#1 t�i t � � �� '"��'� acreage of net,v impervious cover). �t1 *'+t +� �1+ } � t Column 1 shows load reduction regtrriement for newimpervious saver (based ail t*� tt ik*}t ,+i+ t f t r tit t+� t t�t 4 tit tt•} t 1 {" nL-w developrnent loud limit, 0.41lbslacre/yeur). . \, .tit t� `tt tt t -----------.___-_..:..�T--------------- _ �.�� '�t t t t t t,tL 1•t1 Y TP Load Reduction Required (lb/yr) s,/tt+t tiff �tt�(tl {�tlti f'4T9•t t 14(<ti4 i } {{t 4 ttt1 itkt�4 '1 , +ttttt�l.4 tj' 1r1 0 PRE -DEVELOPMENT STORMWATER QUALITY AREA CALCULATIONS SCALE: 1 it=50' .00 — Culf sandy Group J 21 B -- Culpeper 00 fine sandy loam \ � � Soil Group: B �4 CIO Q o r- V) U C0 to 4 Q 4 1— o ¢ ¢ M z o w Q Lr.1 Li-1 0 N z 14 ., P-q 0 El CQ ov I r-i '01 U W 't 2 co C4Ew w # N l:, 0 wax w� I� z 6 z W 1 SO'ILS MAP -50 SCALE: 1° =50' + •i + + + + •"�~'•• + + + + + + + N + + =t + =✓ t y'I� + + ++� + + + + + + + 6 4 ti r + + + + + + , + + + E= 4 + + + + + + + + + + + + + \� + + + + + + + + + + +++++ + + + + + + + + W + + + + + + + \o \ E-a9-i L••».� 1 4 « + + + + + + + + •4��ANAGED �. r'� t +++ +++ ++ +++++++++++ _)RF AREA\ { ++++++++ 0 + + + + w r I+ + + \/ / SHEET NO. POST -DEVELOPMENT 5 0 �] 50' 0 50' 100' 150' SCALE: 1" 50' SHEET 4 of 9 .1 ( / j /t ', 'ry•�s•�aw�`/ � epQ .1:._ :�� �• --A6°J R` 4° !/f //f/ / J' • % f � 4P` -i�. may^ y91� y,'• ' �:✓•`, , t 1 N 40 o �� \ t` 4 ,/ .Psis f J /'�., �,�* f f r �, ,,�•l��n .a� :' I �° ° ,�t /' � ✓j '�' ( +; °v� is f f f s � '�° •�•• t - _ 7:1 4,°4V VJ 44 //< /• / /, '�.r t ,�, Qp �•�'i `. +`. f rf f �; '1 /•. 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(�"•'"'a ( s � � / �°l W �e® � /'.::z-: •---� 3 F/ � ss.��;\ s rt)� irlr ffr} f))lt^°r){� )�!1(}'• ," -! / e ;� / ,, �1P,0 4�Qk l ♦ 0` ' `� f tE- f � 1 �V "t f t l � { f { 1�.' / / „� � �d / / �� � � \\,\`,`� \` !/{lt��yv�b�° �!{yft$� 1 f1 �i���r ' // ` � � �� i // // � // / /� '��S � 0,d�� /:,+�••' •• / r �'a ,' Qg� \`i►r 1 i . tt_11f f / w� /�,� �t f�t t ,i• // ,`' �-' l/.. f y �� : � �,.ro � {� � \ '� ' ._�,�/r It tj�Yr f�f {(tr r� ;' � �' (li � �(rk !/ � / -- - � � / /•.�'; ., - P r J / " e `4 CV 1 ` `=E r�7o - 13� - - f i l i• i l � , �e vie / ' t MON 00 irk Fro •o o,� �.. \' L _ lop 11 00 ®� FS.: LLI tit > >- > Si w .�, '+yr'/ J Lri LC} CCl / ;+' DA= 0.49 Ac ;:�;' ' _' ^' o W t ! { r-bi hrs ( f ' t LJ rY �� 4` \ ✓r � f / 't' FFnb'' .. t' �•f .:•�'s. d'.� d);i.,., - '. �/ CQ /// \`` \ \ (( s / i � ! � 1 , E� ��; F Yip � `..• .x}' �/ s . � 'w...�.. r � i \4 / 4 / ` f f /: � ,/ •f r :...: : ;: , , .R �, /•ty?+� s � ` +` �• s� CT l / /' � ,` fA / / / ' , _ .�" .y v3 e,'i. :4 •� •• �' �'�` 'i` •" l ,r �/•�{ � 'ice � �y i f � \ / l4 - _ / try �a \.•.,: • '' Y 1, •• '�' .: a'9.' • •%s_ .r ~ \ 1 1 � y...t MSC �.r 1J 'e ( rSi r , ' ♦` `4 ! �<" ,�• �� `• �' � t �`-' t �•' hat ' `� � �"' "� as tow ` Concen .e f:r f- W 9 4 'i„ tat - 0 \� 4 . -/. <,1-- "t Y" - / ,�'Zt4' / ` , r ..1 •� ' •�T''.. 1fi i. f •'ti t '�."p; ��./' r i �'`> (3501 @ A* ` ® / 5! t eiA \a !, / \ , ,� ,P e > • � • r i` f (' d.cx t � # '� t �° y- 1� � �"i �:i W for \ �, 4 e �` v ��Sp! ' I / • Pf / r i� f I • '�•w"A°+w¢,ar...q,,,,� ��a,� ` why /""' ,'-a .-_. ��"�} i--� s i• a `Z s'=4 w' 4 i �� !. ! I { l't r% / i ' ' / i,a._ / f' ,� I t / , (4� ® F► / L.�L�S T r9 ,r-0 i�4�t 64 4� �v >`4 '`l� i r •' / i % /f /r i! `\```1�a'=^� /./ �`• r \ � �{fie - At , W .00 DAy-'/ `e DA=1.62 Ac. -'-/�► !-( 4 - X (1` { s F ,/ % + { r fr ;,t'a / e l s /t - 4. 1�v • / / % , / / (ff` /i/ -A ! of �' !' /! r % 1 0 �� ♦ , �e i 4 .s >,4' ' / /' .�-� // ` �' / v� z i ! 9� '' { f�, G /;' j / ' 1 , �� (. !, / , ._ ! �'` •..: ®� /� 4 � i ( �4♦, "-/., ,,�. / / / / ai � � yS,(�i 6� � W `\t �� l \_ f //! f ir•€' / i ' i .�� '+® e� e � !" .' � asy // i°?`; "'� ✓ f / � �' ' •''�\\\ \\\ , -aa 1 4 'V l fr / I �a I III ' ` ,,p `j 4� ( l i / . !' •� � � � e d ` i r / / ®**40 IA ' ! ® m o 1t� a y! ' I f �1 1 4 \� ';. � `f } � l � ( n '/' \ .t �• L� ' � � a t �`o; � 3`�f (�y 'psO 4�i I,t r' � // �e� � ,''iw t ������'� ` `'``; r 4 i •° i ii; 7"- yy (!/ morel% ■ ! f'` e \ae \ •� ! \ 1 \ I f r ♦ xmsr r a 4 i \` p, �.\�``� i '� ' f / t " \ � � r % ' �+w -._ i • 4 \\ ) �' , 1 w r-ate„^' 1 PRE DEVELOPMENT STORM DRAINAGE AREA A 40i o 40' 80' "0' 2 POST :DEVELOPMENT STORM DRAINAGE AREAS M AND N 40° t_1 40' 80' 120' -50 SCALE: 1" = 40' SCALE: 1 "=40' -50 SCALE: 1" = 40' SCALE: 1 "=40' COMBINED RV CALCULATION FOR DA-M AND DA-N DRAINAGE AREA - A �y° Area A Drainage A A oil 8 oils oils Soils Si CS D nits S � oat en Space undastu rbed protected Area (acreS)Faresti0 / � G _.... ,;. forest/open space orreforested !and CN , ... _.. .. 7 .. m. Managed ed Turf -- disturbed graded for olds or other g. / t7 Y. Area (acres) :':'� f �< �r•�tl�# xis .L..,.a a.. ..'C . wvL„�. S.: r!n. .. f,..YT. •. C d turf to be mowed/Managed ged Cl[ Area (acres) 4 f Impervious Cover imp CN q 98 98.` 98 C OA. A 1 year storm 2-year storm 10year storm ed-inch with no Runoff RV wa#ersh iu Developed ( ) Red ct Eon v: z� ' < «;> 1 s , .vs . � •: �: Ta � �� $��-- Com uteri - R� pre Develo ��: ItV rwat�ershed-in.chJ with Runoff 1J eduction Reduc o . .., -1' 1.92 2.2C ^- 4.22 Developed y �•pp�� Adjusted CN DRAINAGE AREA - M Drainage Area B A Soils B Soils C Forest/Open Space -- tfnd[sturbed, protected forest/open space or reforested. land Area (acres) CN r'> x.�Y , ax3 Managed Turf -- disturbed,I graded for yardsor other Cf- turf to be mowed/managed Area (acres),�M 39 67 x CN. impervious Cover Area .(acres) t t Orly a•�{ 98',:`' 3�f "I t . .. g8 f CN "Developed (watershed -inch) with no Runoff Reduction* RVDeveloped (watershed -inch) with Runoff Reduction.* AAhgctoe•i C10 DRAINAGE AREA - Tel Drainage Area C Forest/Open Space-.unds.turbed, protected forest/open space or reforested land Managed Turf -- disturbed, graded for yards or other turf to be mowed/managed Impervious Cover storm 2-vear storm A Solls B Soils. I;(acres)FH WYah�x.<: /Vila 90 S5 CN [: (acres):.°�' 39 62 CN [.(acres) 110 GN 1-year storm RVDevelope¢. (watershad-inch) with no [runoff .Reduction* RVDeveloped watershed -inch) with Runa#f Reduction* Adfusted.CN` storm C SON D Soils 7Q 77: 0 �:4a'C�, 74 80 98..:. 98 10-year storm DA-A-1 YR STORM EVENT DA- A-1 OYR STORM EVENT Drainage Area D A of s. l3 a�. s U Scia s &0 .sal s tai Arm { r ) 2 11 F esSpaceQ � � �' • a. �. rt ar f� en -- .a:! dis t r ed protected ti c t n u b led� • ?4� R >a i;t d , o A. Areaf � � 5 :•SY 3f Rainfall Distribution Type: Type II e 11 for st o en s ace or ref rested land GN: YP yp Rainfall Distribution Type: T e / p p . o - -:3o Rainfall DeRainfall th. 3.02 In 5 53 in De Depth: P Turf ^^ r p Tu dtsturbe.d faded for. aids or other Area .ac es Base Flow: 0.000 cfs Base Flow: 0,000 cfs turf to be mow ed/manage.d C.N $Q la P Interpolation: Off Off x h w. •. � P la P Interpolation: p Area(acres) {.i.�,T�p� H�A+..%7� ..i(/hi.k.=6:Fn:^9v Y.v .4_.,%" xl_ •a S.,.V;: Impervious Cover e 98 98. 98 3& Subarea Area CN Tc L Subarea Area. CN Te Tt Rome (acre) (min) (min) t� rt (acre,) (min) (min) CN(D.A.W 00 A 2.20 89 8.00 8.00 A 2.20 89 8.00 8.00 !-year storm year storm 1f} year storm Computed Results: Computed Results: '� RVUevelo ed (watershed -inch) with no Etunoff:Reduction Peak Discharge 6.66 cfs RV watershed -inch with Runoff Reductitan'�� - g {Qp): Peak Discharge (Qp): 14.86 cfs Developed ( ) v • . , 1.92 2.11 4,05 Time to Peak: 12.10 hrs Time to Peak: 12.10 hrs Adjusted CND J ... ;: r ._ 4, .b� 2:s`.a,• #f' 2•�.ty� - �3c`': Runoff Volume: 0.22 acre-ft Runoff Volume: 0,49 acre-ft z w 0 � 1= 0 �., IL c� 0 f� w DA-M--100YR ROUTED �' p DA-M-1YR STQ M EVENT DA-M-10YR STORM EVENT DA-M-10YR ROUTED DA-M-100YR STORM EVENT U DA-M- I M ROUTED Rainfall Distribution Type: Type II Inflow Peak Flaw: 4.69 cfs Rainfall Distribution Type: Type 11 Rainfall Depth: 3.02 in inflow Peak Time: 12.10 hr Rainfall Depth: 3.66 in Base Flow: 0.000 cfs Routed PeakFlow:. cfs Base Flow: 0.000 cfs la/P interpolation: Off Routed Peak Time: 1214 hr to/P Interpolation: Off Maximum Pond Storage: 0.0102 acre-feet Subarea Area CN Tt Maximum Pond Elevation: 453.49 ft Subarea Area a Tc T� Name acre ( ) min min ( ) ( ) (acre) Name acre min min ( ) (min) M 1.62 88 8.00 8,00 M 1.62 88 8.00 8.00 Computed Results: Computed Results: Peak Discharge (Qp): 4.69 cfs Peak Discharge (Qp): 6.17 cfs Time to Peak: 12.10 hrs Time to Peak: 12.10 hrs Runoff Volume: 0.15 acre-ft Runoff Volume: 0.20 acre-ft Inflow Peak Flow: 6.17 cfs Rainfall Distribution Type: Type Ill Inflow Peak Time: 12.10 hr Rainfall Depth: 9.09 iin Routed Peak Flow: 5.92 cfs Base Flow: 0.000 cfs Routed Peak Time: 12.11 hr la/P Interpolation: Off Maximum Pond Storage: 0.0131 acre-feet Maximum Pond Elevation: 453.64 ft Subarea Area CN Te Tt Name (acre) (min) (min) M 1.62 88 8.00 8.00 Computed Results: Peak Discharge (Qp): 19.52 cfs Time to Peak: 12.10 hrs Runoff Volume: 0.64 acre-ft DA-N-IYR STORM EVENT COMBINED 1-YEAR HYDRRQ:, P DA-N-10YR STORM EVENT COMBINED 10-YEAR HYDROGRAPH Rainfall Distribution Type: Type II FOR QA-M (RID) AND DA-N Rainfall Distribution Type: Type II FOR DA-M (RTD) AND DA-N Rainfall Depth: Base Flow: 3.02 in 0,000 in, peak Discharge Q 5.66 cfs g (p)' Rainfall Depth: 5.53 in Peak Discharge Q 9.43 cfs 9 (p)' la/P Interpolation: Off Time to Peak 12,12 hrs ease Flaw: la/P Interpolation: 0,000 cfs Off Time to Peak 12.11 hrs Subarea Areq a Tc It Subarea Area CN Tc Tt Nye _ (acre) (min) (min) Name (acre) - (min) (min) M 0.49 93 8.00 8.00 M 0.49 93 8.00 8.00 Computed Results: Computed Results: Peak Discharge (Qp): 1.758 cfs Peak Discharge (Qp): 3,649 cfs Time to Peak: 12,10 hrs Time to Peak: 12.10 hrs Runoff Volume: 0.06 acre-ft Runoff Volume: 0.12 acre-ft inflow Peak Flow: 19.52 cfs Inflow Peak Time: 12.10 hr Routed Peak Flow: 19.08 cfs Routed Peak Time: 12.11 hr Maximum Pond Storage: 0.0243 acre --feet Maximum Pond Elevation: 454.20 ft d z �-- CHANNEL PROTECTION COMPLIANCE SUMMARY TABLE .» Applicable Channel Protection Criteria Conditions Criteria A Criteria B Criteria C Dischargewithin Point Limits of Analysis Q2 Qca° V 2 V allowa4le Project consistent with design of g restored Q RV � developed developed IF: Qpre- developed WPM- developed Qdeveloped � RV,1vvolorsnd 'e IF x Qpredaveloped � RVpm-def.eioPed system 1 ❑ Manmade ❑ Restored ❑ YES 5.66 4.05 0.9 6,66 4.22 22.92 25.29 DC Natural Channel Protection Criteria A. The stormwater conveyance system conveys the post -development peak flow rate frorn the tvao-year 24-hour storm event without causing eroslon of the system (V2 must be shown to be non -erosive) B, The development project, in combination with other stormwater runoff, is consistent wrath the design parameters of the restored stormwater conveyance and the restored stormwater conveyance system is functioning as designed C. The discharge from the development satisfies the Energy Balance requirement (Qdeveloped x RVde✓elopsd) C IF x (Qpre-de'reloped x RNfpra-developed) where: Qaeee[oped - the peak flow rate of runoff from the developed site RVdeveioped = the volume of runoff from the site based on developed conditions IF = an improvement factor (0.8 for sites > 1 acre, 0.9 for sites 5 1 acre) Qpre-developed = the peak flaw rate of runoff from the pre -developed site R\tw-dwe(eped = the volume of runoff from the site based on pre -developed conditions � 0 w 0 E-+ Q E-4 C E C) E-+ f�-- Gj F--I I- F- OLLI t] V) SHEET NO. Cern 504 SHEET 5 of 9 Exist. Pipe ��J\�,.r l c , �� ''��`r� ��4�'`` avawcut (To be Abandoned) Y;t; ` f , Pavement EROSION NOTES: i if 't 1. Total disturbed area is 0.50 acres, t itif Z t tt { —46 SEQUENCE OF CONSTRUCTION: !III II { ` -- Ex. Sanitar-- 1. Schedule a Pre -Construction Meeting with the Counter Inspector. � i1 I/ I �H I '+ Ex. Storm 5t rm Inle and 1 _ 2. Install construction entrance and silt fence. { ft { �- 3. Remove asphalt as necessary to install sediment trap. { It t End Section pp c (TBRX�� , 4. Install sediment trap. ! f! I ' vx 5. Install storm structures. + If if i Px , ' fi. Install retaining walls. _ To Pe Removed �. 7. Install travel ways. I If i`-` `'� ' L;• _ a `�` 8. Stabilize disturbed areas above sediment trap. i! r — __-- ._ /` '� ,� 4.. - P Tree t 9. Request count inspector to confirm sediment Era can be removed. t ti I- --.-. ____ ! Ei% Storr�r �,�� f-. % !!r ' q Y p P 'a Be Relocated t , 12. Install temporary 15 HDPE clean water bypass pipe I i► 1� - � _ p��{---- � G '�� �f,� ���,' / lk 13. Remove sediment trap. ! If { --- --- _•_. ...___....: _ .;� ¢55- _ 14. Install parking lot. , GAY S 15. Once parking lot construction is complete, remove temporary clean water bypass pipe. I if !-._ { r�'�c�e`�..._ / / A f Sawcut 16. All diversions, sediment basins/traps, and stockpiles must be seeded and mulched ! {f ! Pavement! immediately upon construction. II I{I +` �P »� , 1r `! 17. After construction is completed and site is stabilized, request county inspector to confirm J !i r - .Ex. Stor . ✓' �r / g��' ® �/ f Slirubs/ /`� ,�fr Curb ♦ r silt fence and inlet protection can be removed t1 J MFI ,, \� / / / 140 %/r ,o �T/ ! ✓' /l To Be Removed TS TEMPORARY SEEDING p� PERMANENT SEEDING CE CONSTRUCTION ENTRANCE SF SILT FENCING SA TREE PROTECTION/SAFETY FENCE 1P INLET PROTECTION OUTLET PROTECTION DD DIVERSION DIKE SS SUPER SILT FENCE CIP CULVERT INLET PROTECTION DC DUST CONTROL SEDIMENT TRAP /`-1� EROSION PLAN PHASE I -50V SCALE: 1 ° = 20' SWPP LEGEND PT PORTABLE TOILETS SCK SPILL CONTAINMENT KIT VWA VEHICLE WASHDO�VN AREA VFS VEHICLE FUELING STATION CWA CONCRETE WASHDOWN AREA WDA WASTE DISPOSAL AREA TP TREE PROTECTION TS TEMPORARY SEEDING DC DUST CONTROL RWD RIGHT-OF-WAY DIVERSION If LPx J If i ( Portion of Building Sidewalk ♦ / To Be Removed ,. I IJ J / ♦ /_/, 1 j, To Be Removed '� i ii t s i ' a, i � `/ / J ♦ / Aspkalt' if ! k., .f s I^ i `;/ \ f /Pgecletxt f �� OA / ! ` ••4 • • • 4 / r f --� ` Curb -v__ f t f i i j/ WV / Curb / / / To, Be RemovedPCP R� f / / / �, ( — ! Landscape Area, / f / / Retaining Mall / f / • j� ��/ f ♦ / /�/ / f%- -- __ - — f To BerRemovedr / .' f f f To Be Removed' •4 �Jz/ , t 1 �� ( •� ..� �.. '-�`,/ ✓� � / / / ,/ / / `/ / / / • Concrete Steps 4 . / //// /f / /////////////,//'ToBeRemoved/♦/ �Y 'i' J / , f % / .' / / / / stilt/ / / / // / / / /o ✓° °y0 ° ° �/ / f�,/ / ! / f / / / / J / f / ♦ % / / .f ¢ . n .-- 4rB`--_ °c000c�o ♦/ / / f////♦//// Retaining Wall �'~; — �: `' `" =/`'f/ /f//f//f/♦o/ min'♦/� J///// �' °e�d'a0/a a ///fr'f ff To Be Removed // 1 i�_f J f f �.�p / f f ` f / / / II ,� o o a ° °o a Q Q ` o f / / f J / f / / / / / / / I/ / l / / /°c �o�°% landscape Area / /a �' / `/ i / ! .(i / ,7`!- s. " ' �g o a f / As: a[t Pavementr �j•o Be Removedf / : , • '_f �� I//I / /✓i/fi///I/,/�//� a0ao'a TVBeRemoved /o✓r///// Sawcut--� ////.////../y / r r Aavement f / if ;�/f`�//%/// i /A/o4//I/$�P����//�//�//jl ( � a0f/f. curb // / } To Be Removed . , f J f f .� / . Curb Kelocat relocated e - - v --Curb To Be Re /` / / / / / •� • a. -� # f , '° x.;3t / -- _' 465�-_ -- -- - — f _— G� --- — — =- 1t / fi /; . ':r 4 • A. 4 ' I fi i i I E rm _ T ` Q • 4 20 2 40' 60' f+ i, ; I , n i / f �6 3 1 If t E } f I ` SeCtlan Exist. f / / /I / / / / I/ / 5 SawCflt It t lee; t / / J / AsiFf6ltf / f 18 PAGE a Pavement� (�I BRA/.' i } % i ( u _ jCc SCALE: 1 -20 { f _ t it _ o i ! _ / / / � l� / � / /°/ / Curb &Sid e Ike , TO I It t t ' , Ex. Sanit}dr f +! {/ , -' t Ex. Storm �, H / 1 P t If t End Section PP i t �t I If kN it it TEMPORARY 15"it I. ! u tL _µ..E~x' Storm ate ,HPDE BYPASS MI PIPE I If t' �~ - 455_ it I If , /"• 31 !t - -Ex. Stor - + 6 II f .. I f 4 J If ' ` • S �ro0 � : v? 64 I it If I 1 I tooi REFER TO SEQUENCE ee f \ \r n r t Ji t OF CONSTRUCTION ( F , ,• FOR CONSTRUCTION OF PARKING LOT ( '� Y A Install Cap on end of existing 12' Roof Drain Roof Drain To Be Removed Block Wall & Concrete Pad To Be Removed 74 o :a * d ..' A a 6 gyp � ©� Qa 0 LO O o ¢ z < m� m m a z w w Q z U 0 p � Z n r"1 ,,o� ca �0 ZID O U a yr� cy >� �W .. � o Z >� Z w co T- W d Z r � amr • < , " ' ' L A j fr STOCKPILE - -- �-__� -` r . •` '� P-+ AREA " C / __ `,.._. ';t to ( i Itf--►j � }� � /�X� .-- Vau � a• d / / CWA � ag % } ,t. a L • ,4 � 1—t l� Ann- OaaO r ti ".. * 4 e : ``; Relocated I o0oaooa000000o O°o `- Zi Z ° oo6oa°oaoo Tree ��O° Oao0QV °0000 1 -00�00 0000° 3QO0o9 :i 440040000000 aooa0000b000 t' � t 1 f, t t. '-..li tit tl ii Itf li i� s It t tit It ii f ft f• }) '' f ,tli i jf 20 0 20' 40 60 1 11 ' 41 low 000 A70,;�ei 64 ' ,;,� l,�x. t rm _- a F' � _ -- _- - - - ---- /CL En SectionEXi! /Treetr, Limits of Disturbance! °°°O000 t 00 t ;;r M� LLJ - -Mot ad-'/ -- -- . ._ ...._ __.% �. .� �. ,arm ... .o.`` .—•-` ,\%.. •'i• ' ` }-- r�---1 � j•~--• - • y 4 ® • ' ' • = % Yam! Vs N STAGIN PT WDA u 9 va AREA t -- -- VFS VWA r�`y- C., u ? i 'Q° x SHEET NO. �.lOs 7 dam- d: / I 4� 9'4, ®a Qs It ' 4 SHEET 6 of 9 EROSION PLAN PHASE 2 AND SWPPP SCALE: 1" = SCALE: 1 "=20' C) ......... . RETAIN NI G WAIL B /TAINING WALL A all 460 455 450 Orifice Design Shape: Rectangular Rise: 9.00 in Width. 24.00 in Invert Elevation: 452.80 ft _ Coefficient: 0.60 ' Number of Openings: 1 Calculation Result Headwater Elevation: 454.50 ft 0 51 Toilwater Elevation: 452.90 ft Discharge: 8.31 efs Velocity. 5.54 ft/s (I 4 RECTANGULAR ORIFICE DESIGN 0+5 -'60 SCALE: NTS OA, _- r PLAN VIEW 10' 20' 30, M It LO � co CD rn ca c) ca o a r ca WALL B TW: 455.0 6" Concrete Wall TW: 454,5 Entire length of A TW: 455.5 Exist Grade 454.5 fTW: BW: 452. BW: 453.5 Bat: 452.5 0.75'x2' ORIFICE Pro posed INV=452.8 WEIR .Grade STR-2 INV OUT=453.0 I NV=453.5 0+00 HORZ SCALE: 1" W 20' VERT SCALE: 1" = 5' RETAINING WALL A DETAIL - KC _-6 07 0+50 1+00 ELEVATION VIEW 455 450 Weir Design Shape: Rectangular w/o Contracted End Crest Length: 6.00 ft Invert Elevation: 453.50 ft Coefficient: 3.33 Number of Openings: 1 Calculation Result Headwater Elevation: 454.50 ft Discharge: 19.98 cfs Velocity: 3.33 ft/s M RECTANGULAR WEIR DESIGN SCALE: NTS Stage (ft) Orifice (cfs) Weir (cfs) Total (cfs) 452.80 0.00 0.00 0.00 453.00 1.94 0.00 1.94 453.50 4.16 0.00 4,16 454.00 6.56 7.06 13.62 454.50 8.31 119.98 28.29 6 STAGE -.:DISCHARGE REPORT -60 SCALE: NTS LD-204 Stormwater Inlet Computations _ Sag Inlets Only on 4- o N g a W U to M {�RT+ o +, Y` a� aJ +� �N io et C *' V ,t= Q) � CL p 4-' z 0 r�6 v °� a Q +J U U t- ? +� +� �, c m a L_ = cs (ft) (ac) (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 STR-1 DI-2B-6' 6.00 0.59 0.80 0.47 .47 4.00 1.89 0.00 1.89 0.02 0.01 0.02 0.10 6.45 0.30 1.00 1.89 0.00 - 0.50 - - STR-2 DI-213-6' 6.00 0,73 0.70 0,51 .51 4.00 2.04 0.00 2.04 0.02 0.06 0.02 0.10 3.17 0.23 0.94 1.92 0.13 - 0.50 - - STR-3 CURB CUT 3.00 0.56 0.75 0.42 0.42 4.00 1.68 0.00 1.68 �0.02 0.01 T 0.02 0.10 SAC 1.00 1.89 0.00 0.27 0.50 0.55 7.50 *0.13 cfs of bypassed flow will flow into curb -cut. __- LD-347 Hydraulic Grade Line Calculations Inlet Station Outlet Water Surf Elev (ft) Rise of Outflow Pipe, Do (in) Discharge of Outflow Pipe, Qo (cfs) Length of Outflow Pipe, Lo (ft) Friction Slope of Outflow Pipe, Sfo (%) Friction Loss Along Outflow Pipe, Hf (ft) Velocity of Flow in Outflow Pipe, Vo (fps) Total Head Loss for the Structure, Fit (ft) Final Head Loss at Junction, FI (ft) Inlet Water Surf Elev (ft) _ Rim Elev (ft) STR-1 454.91 15.00 3,07 75.91 0.35 0,28 4.31 0.09 0.34 455,25 463.08 LD-229 Storm Drain Design Flow Total Travel From Catch A Runoff Accum TotTc Total Int Flow Up Inv Down Pipe Len Pipe Dia Pipe Cap Velocity Time Point To Point (Ac) Coef. Inc CA CA (min) (in/hr) (cfs) (ft) Inv(ft) (ft) Inv S (°!o) (in) (cfs) (fps) (min) STR-1 STR-2 0.59 0.80 0.47 0.47 6.00 6.37 2.89 458.33 453.10 75.91 6.55 15.00 19.31 3.28 0.41 _ r f i Q DA-STR-3 r A = 0.56 Acres �* / r "1'c - 6.0 min C = 0.75 Ky 'V- f I f R1� dZE +'^ 00 00 h ,.. Q z is \. 0 a Q ® [�€1 M M © U O LLJ to W `\e DA-CURB CUT A = 0.17 Acres ; , :..r a F,'.%, \ o \� Tc = 6.0 min ;' i --_--,�--_- - )1 r �':: ' • ,� DA-STR-1 i� �-+ :::q A = 0.59 Acres o v Tc = 6.0 min > C 0.80 co ♦ v ° i� � • ,`\ ' / ♦�° � / �/ .. � � gglqq Yq q e f �R"" d..«�,j ♦`' \ s `. �� � G� ' �� us ..t �' ! - � «� - r _ � 1►gq•Yq� ggq�1 • � � :+.,, °♦°♦♦ � 0. � /'- � .�(. � ` DA--STR--2 - 3 Acres Te = 6.0 min iu ■i!®a slim, milmoNMYaxtts spa rea��ae' als�ar. r� 2 STORM INLET :DRAINAGE AREAS 40' 0 -60 SCALE: 1" = 40' SCALE: 1 "-40' �ECT10N APRON LINING SHALL BE d 50 = 611 0% d=12" 11 KEY IN 6"-9' RECOMMENDED FOR ENTIRE PERIMETER 8 OUTLET PROTECTION (OP) -60SCALE: NTS A PLAN VIEW PIPE OUTLET 1'0 -� FLAT AREA WITH NO DEFINED CHANNEL 465 460 455 450 40' 80' 120' 10-YR -- La Do W dso Structure Flow (ft) (ft) (ft) (in) (cfs) STR-2 6.17 10 1.25 11.25 6 STR-3 9.43 9 N/A 7 6 Source: USDA-SCS Plate 3.18-3 C3� Q �i uO �_ a) Ln 'O'11 � IE !��a �� -, It J� p Z - G I1 � 0 - - �� ®6•`��° Exist Grad Proposed Grade i j 0+00 0+50 3 STORM DRAINAGE PROFILE -60 HORZ SCALE: 1" = 20' VERT SCALE: 1" = 5' TA i z 2 O 7 I= o a_ U q U O 0 0 z 0 � a � � 465 E� 460 0 E-1 455 F- �l 0Ld I= Q V) SHEET NO. 450 U-600 ---- SHEET 7 of 9 \N Dr Sediment Trap,,, ;Ime t A = 1.47 Acres 0 F \ SEDIMENT TRAP DRAINAGE AREA 50' 0 50' 10o' _1 50' SCALE: 1" = CLASS I RIPRAP HF-1A' CENGTN DIVERSION DIKE EL = **COARSE AGGREGATE SHALL. BE VDOT $#3, #357, OR #5. **COARSE AGGREGATE FILTER CLOTH / EXCAVATED AREA OUTLET (PERSPECTIVE VIEW) F I EMITS OF DI _x /r j Y Y IRBANCE �-r ....� �449.5�"��_�_ _�-�- _ r�M ---45 45.E -� 54 w--453.._ 1 t t ( 455 5 SEDIMENT TRAP (ST) 601 SCALE: NTS ORIGINAL GROUND ELEVATION ----------------------- GRAvECa MTER MWOFI • WPLkTER CONCH= j; 1111 -Wl rr,�� i r wr1 - uul �I III _ ��IMIII =IIIIII; i, -� �iuu a�: r SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LiKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT" STRUCTURES AND UNPROTECTED AREAS. * GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. GRAVEL CURB INLET SEDIMENT FILTER (IP) SCALE: NTS Dry Volume Wet Volume (Excavated) EL = A ' rRrrr�r1.0 r:r:r:r4r llFORIGINAL GROUND ELEVATION D1 FILTER CLOTH \_ **COARSE CLASS AGGREGATE RIPRAP CROSS SECTION OF OUTLET JNU. A B G Z W8R UMNAGE WET WET' DRY DRY LENQTH AREA VOL. PROV, VqL. PRDV. fi 449.30 452;C G 4t 4.20 1 • 9 1.47 2659 2982 2659 2686 Elev(Ft) Area(SF) Storage(CF) 449.50 292.00 0.0 450.00 462.00 188.5 451.00 829,00 834.0 452.00 1228.00 1862.5 452.90 1572.00 2982.5 WET STORAGE = 2982.5 CF 453.00 1669.00 3306.6 454.00 2114.00 5198.1 454.20 2209.80 5668.0 DRY STORAGE = 5668.0 CF 455.00 2593.00 7551.6 (5668.0-2982.5=2685.5 CF) 10' 0 10' 20' 30' SCALE: 1 "=10' ALBEMARLE COUNTY- ENGINEERING ` SILT FENCE NIA STD. & SPEC. 3.05 - VA. EROSION AND SEDIMENT CONTROL HANDBOOK (1992) GENERAL CONSTRUCTION NOTES FOR EROSION & SEDIMENT CONTROL Q 1. The plan approving authority must be notified one week prier to the pre -construction conference, one week prior to the NO WIRE BACKING WITH WIRE BACKING commencement of land disturbing activity, and one week prior to the final inspection. o 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment control Handbook and Virginia Regulations VR 625--02-22 Erosion and "� =d Cj 16 - 34 6' MAX � 10 MAX WIRE Sediment Control Regulations. 16" - 3 MESH + 3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing. 0 4. A copy of the approved erosion and sediment control plans shall be maintained on the site at all times. 00 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limits to, N 1-1 o 4 �u FL4`" � �,�„ off -site barrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review LID= and approval by the plan approving authority. �" 'V) PROVIDE I' TUCK OR SUITABLY PROVIDE I" TUCK OR SUITABLY O RIEINFOR ED TOP END SECTION REINFORCED TOP END SECTION 6. The contractor is responsible for installation off any additional erasion control measures necessary to prevent erosion and »^ sedimentation as determined by the plan approving authority. o M m m m 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and z © 0 z o during site development until final stabilization is achieved. oLd CD 0 8. During dewatering operation water will be pumped into an approved filtering device. ca VUJ Ld FF ._.,, 9. The contractor shall inspect all erosion contrail measures periodically and after each runoff -producing rainfall event. Any 4 FLo�� necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. EMBED 8" OF FILTER CLOTH IN EMBED 8" OF �T ( (� �` /� TRENCH TO ANCHOR BOTTOM OF TRENCH TO ANICHOR BOTTOM OF EROSION � & SEDIMENT CONTROL NOTES r 1 CLOTH. COMPACT THOROUGHLY CLOTH. COMPACT THOROUGHLY ES-1: Unless otherwise indicated, all vegetative and structural erosion and sediment control practices will be constructed and maintained according to the minimum standards and specifications of the Zrginia Erosions and Sediment Control Flan bo k and Virginia regulations VR 625-02-00 CIJ FILTER h FABRIC ES-2: The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the E CV CIII ;:4commencement of land disturbing activity, and one wieek prior to final inspection.I v rFfr� Fi'iacv ES-3: All erosions and sediment control measures ane to be placed prior to or as a first step in the clearing. "I CQ M Cc co ES-4: A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. �. s P MIRE MESH SHALL BE A MINIMUM 1�-==1 µ..j R, 5` C) OF 14 GUAGE AND SHALL HAVE A � 124 MAXIMUM MESH SPACING OF 6". ES-5: Prior to commencing land disturbing activities iin areas other than indicated on these plans (including but not limited to, p;W off -site borrow or waste areas) the contractor shall submit a supplementary erosion control plan to the owner for review and 2 SILT FENCE (SF) approval by the plan approving authority. a a -601 SCALE: NTS ES-6: The contractor is responsible For Installation of any additional erosion control measures as necessary to prevent erosion and sedimentation as determined by the plan approving awthonty. Z W ES-7: All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and during Z site development until final stabilization is achieved. III ES-8: During dewatering operations, water will be punnped into an approved filtering device. Z 70' Min ES-9: The contractor shall inspect all erosion control measures periodically and after each runoff -producing rainfall event. Any Stone 3" SM-2A Asphalt necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. Construction Existing Access 2% :.Slope. � -2% Sloe Erosion Notes: Pavement 1) All Entrances except the approved construction entrance shall be blocked in such a manner as to not allow access to the site. 2) The developer shall reserve the right to install, maintain, remove and/or convert to permanent structure all erosion and sediment 6" 21A Aggregate Base control measures required by this plan regardless of the sale of any lot. Filter Cloth Existing 3) A video camera inspection Is required for all storm sewers and culverts that are deemed inaccessible to VOGT inspections and are Grade SECTION 8-8 to be accepted into VDOT's maintenance and program and ownership. The video inspection shall be conducted in accordance with Existing VDOT's video inspection procedure and with a VDOT and/or county inspector present. In addition, if high -density polyethylene (HDPE) B A Pa ement H pipe or pipe system, the contractor and a representative from the pipe manufacturer should hold a pre --construction meeting for installation. EROSION MAIN R T ENANCE SCHEDULE ,.IL''- 2% Slope; �* C4 1. The Site Superintendent or his representative shall make a visual inspection of all erosion and sediment Stone A -Positive Drainage *Mu t extend full controls on a daily basis until the site is .stabilized and especially after a heavy rainfall to assure that all Construction I To Sediment width of ingress controls are in place and that none have been damaged. Any damaged control shall be repaired prior to 00 Access Trapping Device and egress operation the end of each workday to include re -seeding if necessary. - PLAN VIEW " '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 hauling away if not suitable for fill. 12' Mi Positive Drainage To Sediment 3•Gravel outlets shall be checked regularly for sediment buildup that may prevent drainage. Controls shall be tom'.. 2% Slope Trapping Device z inspected and repaired after each rainfall and cleaned if sediment has accumulated to half of the devices W original height. © > a~ o 4.AI1 earthen structures such as diversion dikes and berms shall be checked daily during construction for Filter Cloth U breaching by equipment. Repairs shall be made immediately. w z SECTION A --A c0 0 O 5. Silt fences shall be checked after each rairistorm to assure they have not fallen or become clogged with 0 silt All repairs shall be made immediately. NOTE: A minimum water top of 1" must be installed with a minimum 1" ballcock shutoff valve supplying a wash Ihose with a diameter of 1.5" for adequate constant pressure. Wash 6. All seeded areas shall be inspected regularly to see that good stand is maintained. Areas will be waster must be carried away from the paved construction entrance to an approved re -fertilized and re -seeded as necessary. settling area to remove sediment. All sediment shall be prevented from entering storm o drains, ditches, or watercourses. z 7.After construction operations have ended and disturbed areas have been stabilized, all berms and sediment -trapping devices may be removed after removal, the ground shall be restored to its natural or 3 PANED CONSTRUCTION ENTRANCE (CE) proposed condition to include establishment of permanent vegetation, Removal of any control is contingent -601 SCALE: NTS upon approval of the County inspector. , EROSION & SEDIMENT CONTROL NARRArf IVE PERMANENT & TEMPORARY STABILIZArrION PROJECT DESCRIPTION: The purpose of this project is to construct a entrance road and parking lot, The total disturbed area Permanent seeding shall be applied within seven (7} days after final grading is completed. 0 92 Is 0.50 Acres. TEMPORARY SEEDING SPECIFICATIONS: a EXISTING SITE CONDITIONS: February 16 through April 30: Use Annual Ryegrass at 60 to 100 lbs/acre. E-i-i The site Is 34% pervious area and 66% paved. Slopes range from 4 to 10 percent. 0 Z May 1 through August 31: E .. i ADJACENT AREAS: Use German Millet at 50 Ibs/acre. Z Z The property to the west is a railroad, the properties to the east and south are public roads. 0 September 1 through February 15: SOILS: Use a 50/50 Mix of Annual Rye and Winter Rye at 50 to 100 lbs/acre. Z O Refer to 1/C---503 for soils map. PERMANENT SEEDING SPECIFICATIONS: February 16 through April 30: W CRITICAL AREAS: Kentucky 31 Fescue - 128 Ibs/acre; Annual Rye - 20 Ibs/acre. There are no critical areas on this projec' tw May 1 through August 15: r- PERMANENT & TEMPORARY STABILIZATION: Kentucky 31 Fescue - 128 Ibs/acre; Foxtoil Millet - 20 Ibs/acre. Permanent seeding shall be applied within seven (7) days after final grading is completed. August 16 through October 31: SOIL STOCKPILES AND BORROW AREAS: Kentucky 31 Fescue - 128 Ibs/acre•, Annual Rye - 20 Ibs/acre. Fn SHEET' N0. There will not be any borrow areas associated with this project, refer to C-505 for location of November 1 through February 15: AML stockpile. Kentucky 31 Fescue -- 128 lbs/acre= Winter Rye - 20 Ibs/acre. MS-19 COMPLIANCE: MULCHING SPECIFICATIONS: Refer to Storm Water Management calculations. Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. SHEET 8 Of 9 4VAC50-60-54 of the Virginia Stormwater Management Program (VSMP) Permit Regulations requires that Stormwater Pollution Prevention Plan (SWPPP) be developed n disturbing activities. The SWPPP must include but not be limited for all regulated lad g , to, an approved erosion and sediment control plan, an approved stormwater management plan, and this Pollution Prevention flan (PPP) for regulated land disturbing activities, and a description of any additional control measures necessary to address a TMDL as applicable. The plan for implementing pollution prevention measures during construction activities developed on this sheet must be implemented and updated as necessary. Any PPP requirements not included on this sheet must be incorporated into the SWPPP required by 4VAC50-60-54 that must be developed before land disturbance commences. This PPP identifies potential sources of pollutants that may reasonable be expected to affect the quality stormwater discharges from the construction site (both on- and off -site activities) and describes control measures that will be used to minimize pollutants in stormwater discharges from the construction site. OTHER REFERENCED PLANS SWPPP requirements may be fulfilled by incorporating, by reference, other plans. All plans incorporated by reference become enforceable under the VSMP Permit Regulations and General Permit VAR10 for Discharges of Stormwater from Construction Activities. If a plan incorporated by reference does not contain all of the required elements of the PPP, the operator must develop the missing elements and include them in the SWPPP. Independent Plans Incorporated by Reference Date Approved Stormwater Management Plans (Regional or Master) Spill Prevention, Control, and Countermeasure Plans Off -Site Stockpile N!A Off -Site Borrow Area N/A POTENTIAL POLLUTANT SOURCES The following sources of potential pollutants must be addressed in the Pollution Prevention Plan. Various controls and/or measures designed to prevent and/or minimize pollutants in stormwater discharges from the project site must be applied to the sources found on the site. Additional information concerning the following controls and/or measures may be found in the SWPPP. Deviations from the location criteria may be approved by the Henrico County Environmental Inspector. LEADS, SPILLS AND OTHER RELEASES ✓ The operator(s) shall ensure procedures are in place to prevent and respond to all leaks, spills and other releases of pollutants. ✓ The operator(s) shall ensure all leaks, spills and other releases of pollutant are contained and cleaned immediately upon discovery. Any contaminated materials are to be disposed in accordance with federal, state, and/or local requirements. ✓ The operator(s) shall ensure spill containment kits containing appropriate materials (e.g., absorbent material and pads, brooms, gloves, sand, etc.) are available at appropriate locations, including, but not limited to: designated areas for vehicle and equipment maintenance; vehicle and equipment fueling; storage and disposal of construction materials, products, and vraste; and storage and disposal of hazardous and toxic materials; and sanitary waste facilities. ✓ The locations of the spill containment kits are identified as described below: Shown on Date Plan Sheet Location #s Approved C-505 Labeled as SGK. Located in Staging Area Plan REVISIONS TO LOCATIONS Shown on Operator(s) Date Plan Sheet Location Initials #(s) ✓ The operator(s) shall notify the Department of Environmental Quality of leaks, spills, and other releases that discharge to or have the potential to discharge to surface waters immediately upon discovery of the discharge but in no case later than 24 after the discovery. ✓ The operator(s) shall notify the Department of Environmental Quality (DEQ) of leaks, spills, and other releases that discharge to or have the potential to discharge to surface waters immediately upon discovery of the discharge but in no case later than 24 after the discovery. Written notice of the discharge must be sent to DEQ and Henrico County Department of Public Works within five (6) days of the discovery. Virginia Department of Environmental Albemarle County Quality Community Development NEED ADDRESS Engineering Department (804) 786-3998 (phone) 401 McIntire Road (804) 786-1798 (fax) Charlottesville, VA 22901 (800) 468-8892 (outside normal working (434) 296-5832 hours) EQUIPMENT/ VEHICLE WASHING ✓ Washing must be conducted in a dedicated area that is located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features. ✓ All wash water used in vehicle wheel washing must be directed to a sediment basinitrap. ✓ All vehicle washing activities other than wheel washing must have secondary containment. ✓ Each facility must have appropriate signage to inform users where the dedicated area(s) are located. Location of Shown on Water Source Activity Dedicated Area(s) Plan Location Sheet #(s) Wheel Wash VWA C_ 605 Relocated Fire Hydrant. Other Wash Areas REVISIONS TO LOCATIONS Shownon Location of Water Source Operator's Activity Dedicated Area(s) Plan Location Initials Sheet #(s) VEHICLE FUELING AND MAINTENANCE ✓ Conduct regular maintenance in a dedicated area that is located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features. ✓ If fueling is conducted at a dedicated area, the location must be located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features. ✓ The dedicated areas must be designed 1c, eliminate the discharge of spilled and leaked fuels and chemicals from vehicle fueling and maintenance activities by providing secondary containment (spill berms, decks, spill containment pallets, providing cover where appropriate, and havring spill kits readily available). ✓ Each facility must have appropriate signage to inform users where the dedicated area(s) are located. Location of Dedicated Areas) Y!5- Locatea in zinging area REVISIONS TO LOCATIONS Operator's Initials ✓ If mobile fueling wilt be used, the fueling must be done in an area that located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features. ✓ Spill kits must be readily available at all mobile fueling locations. ✓ On -site storage tanks must have a means of secondary containment (spill berms, decks, spill containment pallets, etc.) and must be covered where appropriate. ✓ All vehicles on site must be monitored for leaks and receive regular preventive maintenance to reduce the chance of leakage. DISCHARGE FROM STORAGE, HANDLING, AND DISPOSAL OF CONSTRUCTION PRODUCTS, MATERIALS, AND WASTE ✓' Storage of construction products, materials, and waste is to be conducted in dedicated areas. The dedicated area must be located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 fleet from those features. Separations of less than 50 feet may be approved by the Environmental Inspector. v' The dedicated areas must be designed to minimize the discharge of pollutants from storage, handling, and disposal of construction products, materials and wastes including (i) building products such as asphalt sealants, copper flashing, roofing materials, adhesives, concrete admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape materials; and (iii) construction and domestic wastes such as packaging materials, scrap construction materials, masonry products, timber, pipe and electrical cuttings, plastics, Styrofoam, concrete and other trash or building products.. Each facility must have appropriate signage to inform users where the dedicated area(s) are located. Date Shown Plan Sheet Location(s) of Dedicated Area(s) for storage of construction #(s) products and materials Approved Plan REVISIONS TO LOCATIONS Date Shown on Plan Sheet Location(s) of Dedicated Area(s) for storage Operator(s) I of construction products and materials Initials Shown on Date Plan Sheet Location(s) of Dedicated Area(s) for waste from #s construction products and materials Approved C 5Q5 WDA— Located in Staging Area Plan REVISIONS TO LOCATIONS Shown on Date Plan Sheet Location(s) of Dedicated Area(s) for waste Operator(s) from construction products and materials Initials #s f G ! Z2 y l a *).1\\i f Follow all federal, state, and local requirements that apply to the use, handling and disposal of pesticides, herbicides, and fertilizers. ✓ Keep chemicals on -site In small quantities and in closed, well marked containers. f Clean up solid waste, including building materials, garbage, and debris on a daily basis and deposit into covered dumpsters that are periodically emptied. Y" Schedule waste collection to prevent exceeding the capacity of onsite containers. Additional containers may be necessary depending on the phase of construction (e.g., demolition, etc.) ✓ Dispose of all solid waste at an authorized disposal site. ✓ Ensure that containers have lids or are otherwise protected from exposure to precipitation. DISCHARGES FROM OTHER POTENTIAL POLLUTANT Discharges from other pollutant sources (e.g., water line flushing, storm sewer flushing, above ground storage tanks, etc.) not mentioned elsewhere must be addressed. Other Potential Pollutant Sources i Locations of Potential Pollutant Sources � Above ground oil storage tanks with a storage capacity exceeding 1,320 gallons and have a reasonable expectation of a discharge into or upon Waters of the United States are required to have a Spill Prevention Control and Countermeasure (SPCC) Plan. ✓ The discharge of contaminated flush water and material removed during flushing operations must be collected and disposed of in accordance with appropriate federal, state, and local requirements. DISCHARGES FROM CONCRETE RELATED WASH ACTIVITIES ✓ Concrete trucks are not allowed to wash out or discharge surplus concrete or drum wash water on site except in a dedicated area(s) that is located to prevent discharge to storm drain inlets, ditches, waterbodies or wetlands but no less than 50 fleet from those features. ✓ Each facility must have a stabilized access to prevent mud tracking into the street. ✓ Each facility must have appropriate signage to inform users where the dedicated area(s) are located. Shown on Date Plan Location of Dedicated Area(s) Sheet #(s Approved Plan C.606 CWA-Located Near Construction Enterance REVISIONS TO LOCATIONS Shown on Operator's Date Plan Location of Dedicated Area(s) Initials Sheet #(s) ✓ Facilities must be cleaned, or new facilities constructed, once the washout area is two-thirds (2/3) full. BELOW MADE CONCRETE WASHOUT AREA 0 o 0 0 0 O O 10' MIN. 10' MIN. O oco 0 0 0 0 ULUMIJu 1 g, MIN. 3' MIN. 18" MIN. STAPLE DETAIL -T�-f h-s--- 2N Yap dia. steel wire *t 10' MIN. -4--I SECTION A 3' MIN. staples 2 per straw ba e) rinding wire --straw bale wood or metal stakes (2 per straw bale SECTION B -----00- 1 I-- W- — 1, . min. 3' MIN. 1 SECTION C CONCRETE WASHOUT AREA NOTES ✓ The facility must be lined with 10 mil plastic lining that is free from holes, tears, or other defects that might compromise the material's impermeability, ✓ The lining must be anchored with staples (2' spacing) or sandbags. ✓ aide slopes must be 1:1 (horizontal:vertical) or flatter. ✓ Stone access must be provided between the street and the concrete washout area. ✓ A "Concrete Washout" sign must be installed within 30 feet of the washout facility. The sign must be no smaller than 2' tall by T wide. DISCHARGES OF SOAPS. DETERGENTS. SOLVENTS, AND MASH WATER FROM CONSTRUCTION ACTIVITIES SUCH AS CLEANUP OF STUCCO, PAINT, FORM RELEASE OILS, AND CURING COMPOUNDS Washing activities associated with construction activities other than vehicle and equipment washing, such as clean up of stucco, paint, form release oils, and curing compounds are to be conducted in a dedicated area. The dedicated area must be located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features. Separations of less than 50 feet may be approved by the Environmental Inspector, f The dedicated areas must be designed to prevent the discharge of soaps, detergents, solvents, and wash water. Shown on Date Plan Location(s) of Dedicated Area(s) Sheet #(s) Approved Plan REVISIONS TO LOCATIONS Shown on Date Plan Location(s) of Dedicated Area(s) Operator(s) Sheet #(s) Initials The dedicated area must be covered (e.g., plastic sheeting, temporary roof, etc.) to prevent contact with stormwater. ✓ The contaminated wastewater from the dedicated area must be collected for disposal by a waste hauler or discharged to the sanitary sewer. ! In situations where these pollutants are or could be generated at locations other than at the designated area (e.g., concrete pours, building washing, etc.), cover (e.g., plastic sheeting, temporary roof, etc.) must be provided to prevent contact with stormwater and the contaminated wastewater from the activity must be collected for disposal by a waste hauler or discharged to the sanitary sewer. DISCHARGES OF HAZARDOUS, TOXIC, AND SANITARY WASTE Storage and disposal of hazardous, toxic and sanitary wastes are to be conducted in dedicated areas. Y"' The dedicated areas must be located to maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features_ Separations of less than 50 feet may be approved by the Environmental Inspector. f The dedicated areas must be designed to prevent the discharge of hazardous, toxic and sanitary waste by avoiding contact with precipitation Each facility must have appropriate signage to Inform users where the dedicated area(s) are located. S 0 w— in on Location(s) of Dedicated Area(s) for storage and disposal of Date Plan hazardous and toxic wastes Sheet # s} Approved Plan REVISIONS TO LOCATIONS Date Shown on Plan Location(s) of Dedicated Area(s) for storage Operator(s) Sheet Xs)and disposal of hazardous and toxic wastes Initials f Consult with local waste management authorities or private firms about the requirements for disposing of hazardous materials and/or soils that may be contaminated with hazardous materials. ✓ Never remove the original product label from the container_ Follow the manufacturer's recommended method of disposal. Schedule periodic pumping of portable toilets and dispose of waste f Dispose of all solid waste at an authorized disposal site. SWPPP MODIFICATIONS AND REVISIONS The operator(s) shall ensure the SWPPP is modified and/or revised to reflect: ✓ Changes in qualified personnel; delegated authorities or other personnel required as a condition of the General Construction Permit; ✓ Changes In site conditions; ✓ Changes in the design, construction, operation, or maintenance of the construction site that affect the potential for discharges of pollutants that are not addressed in the normal implementation of the plan; and ✓ Ineffective control measures identified during inspections or investigations conducted by the operator's qualified personnel or local, state or federal officials. Modifications/revisions'to the SWPPP shall include additional or modified control measures to address the identified deficiencies. If the necessary modifications/revisions require approval by the Administrator or DEQ, the modifications/revisions must be implemented no later than seven (7) calendar days following approval. If the necessary modifications/revisions do not require approval by the Administrator, the modifications/revisions must be implemented prior to the next anticipated storm event or as soon as practicable. ao ,-- z O r V) Q F- � < m m a] z 0 U M (nbi W 0 z Y_ of 0 W o O 62 � CQo0 i0 al c ar f� P4co H A F� Z wa0 W�U Z Z P4 z w O I ,— Z U) P4 0 0 Z t� ram- Z E--+ W FBI C� C) Z o E0 FT I 0 SHEET NO. C�602 SHEET 9 Of 9