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HomeMy WebLinkAboutWPO201600054 Plan - VSMP 2020-09-08GENERAL NOTES OWNER: WOODBRIAR ASSOCIATES PO BOX 5548 CHARLOTTESVILLE, VA 22905 ENGINEER: COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 SURVEYOR: LINCOLN SURVEYING 632 BERKMAR CIRCLE CHARLOTTESVILLE, VA 22901 434.974.1417 SURVEYOR: BOUNDARY OF THE SITE WAS PROVIDED BY LINCOLN SURVEYING IN FEBRUARY, 2013. TOPOGRAPHY PROVIDED BY THE ENGINEERING GROUPIE FROM AERIAL FLOWN TOPO IN JANUARY, 2007. TOPOGRAPHY SURVEY WAS LATER UPDATED IN DECEMBER OF 2015 AND THE WINTER OF 2020. SITE WAS FIELD VERIFIED IN APRIL OF 2020. TAX MAP PARCEL: TMP 032G0-00-00-001114 (D.B. 5225/PG. 676) TOTAL ACREAGE: TOTAL TMP AREA=27.351 ACRES; THIS PLAN's AREA=16.166 ACRES ZONING: PRO (ZMA 1991-00013, ZMA 1995-00005, ZMA 2004-00014, AND ZMA 2005-00009) USE: 13 SINGLE FAMILY DETACHED UNITS SETBACKS: FRONT 20 FEET MINIMUM SIDE 6 FEET MINIMUM REAR 5 FEET MINIMUM BUILDING HEIGHT: 35 FEET MAXIMUM STREETS: CURB AND GUTTER, PUBLIC STREETS EXISTING CONDITIONS: SITE IS MOSTLY WOODED UTILITIES: SITE WILL BE SERVED BY PUBLIC WATER AND SEWER PHASING: PHASE 6 - LOTS 126-138 (13 LOTS) FLOODPLAIN: A 100-YEAR FLOODPLAIN EXISTS WITHIN THE PROPERTY PER FEMA MAP #51003C0145D PANEL 145D (DATED FEBRUARY 4, 2005). THE 100-YEAR FLOODPLAIN IS OUTSIDE THE LIMITS OF THE PROPOSED 13 LOTS. STREAM BUFFERS: A WPO BUFFER EXISTS WITHIN THE PROPERTY. NO STREAM BUFFERS EXIST WITHIN THE LIMITS OF THE PROPOSED 13 LOTS. DATUM: NAD83 OPEN SPACE: 13.602 ACRES (84% OF TOTAL AREA) LOTS: 2.252 ACRES (14% OF TOTAL AREA) PUBLIC R/W: 0.312 ACRES (2% OF TOTAL AREA) CRITICAL SLOPES: EXISTING PRESERVED AND MANAGED STEEP SLOPES ARE SHOWN AND LABELED ON THE PLAN SHEET. PARKING: EACH SINGLE FAMILY LOT WILL HAVE TWO OFF-STREET PARKING SPACES. LIGHTING: NO STREET LIGHTING IS PROPOSED. LANDSCAPING: STREET TREES ARE PROPOSED ALONG SUNSET DRIVE, SEE SHEET 3 FOR DETAILS. RETAINING WALLS: RETAINING WALLS ARE PROPOSED. SIGNAGE: NO SIGNAGE IS CURRENTLY PROPOSED. ANY SIGNAGE WILL BE INCLUDED WITH THE FINAL SITE PLAN OR UNDER SEPARATE APPLICATION. WATERSHED: NORTH FORK RIVANNA (ABOVE WATER INTAKE) STREET TREES: STREET TREES SHALL BE PROVIDED ALONG ALL PUBLIC ROADS IN ACCORDANCE WITH COUNTY REQUIREMENTS. TRASH COLLECTION: TRASH RECEPTACLES SHALL BE MAINTAINED ON EACH INDIVIDUAL LOT. BUILDING SITES: EACH LOT CONTAINS A BUILDING SITE THAT COMPLIES WITH SECTION 4.2.1 OF THE ALBEMARLE COUNTY ZONING ORDINANCE. IMPERVIOUS AREAS: ROADS 0.25 AC. SIDEWALKS 0.07 AC. BUILDABLE AREA 1.08 AC. TOTAL 1.40 AC. FIRE FLOW: A FIRE HYDRANT FLOW TEST WAS COMPLETED NEAR THIS PROPERTY RECENTLY. THE PRESSURE HYDRANT (HYD. 12670) IS LOCATED APPROXIMATELY 0.2 MILES FROM THE SUBJECT PROPERTY AND RECORDED A PRESSURE DROP OF 25 psi (FROM 133 psi TO 108 psi) WHILE TWO FLOW HYDRANTS (HYD. 12671 & HYD. 12937) RELEASED FLOWS OF 1,118 gpm AND 1,082 gpm FOR A DURATION OF 2 MINUTES. NOTE: A PORTION OF THIS PROPERTY's PROPOSED OPEN SPACE IS LOCATED WITHIN A DAM INUNDATION ZONE. BRIARWOOD PHASE 6 VSMP PLAN AMENDMENT #1 (AMENDMENT #1 TO WPO 201600054) RIO MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA OWNER WOODBRIAR ASSOCIATES PO BOX 5 548 CHARLOTTESVILLE, VA 22905 SHEET LAYOUT SCALE: 1" = 100' ENGINEER COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 VICINITY MAP SCALE: 1" = 2000' Sheet List Table Sheet Number Sheet Title i COVER 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS 4 PHASE I EROSION & SEDIMENT CONTROL PLAN PHASE II ER SION SEDIMENT ONTROL PLAN 6 PHASE III EROSION & SEDIMENT CONTROL PLAN (NEW) 7 PHASE IV EROSION & SEDIMENT CONTROL PLAN (NEW) I 9 STORMWATER MANAGEMENT PLAN 10 STORMWATER MANAGEMENT DETAILS 10 TOTAL SHEETS 3 VSMP PLAN AMENDMENT #i: BELOW IS A SUMMARY OF THE PROPOSED REVISIONS TO THE APPROVED WPO 2o3.600054 PLAN: ATHE ROAD AND LOT LAYOUTS WERE MODIFIED. THESE REVISIONS CAUSED A MINOR INCREASE IN THE PROPOSED LIMITS OF DISTURBANCE, HOWEVER THE SAME GENERAL DESIGN CONCEPT WAS MAINTAINED FOR EROSION & SEDIMENT CONTROL AND STORMWATER MANAGEMENT. 2QSHEETS 6 & 7 WERE ADDED TO THE SET OF PLANS TO REFLECT EROSION & SEDIMENT CONTROL PHASES III AND IV. LEGEND ROADS EXISTING CULVERT EARTH DITCH CULVERT DRIVEWAY CULVERT Q DROP INLET & STRUCTURE NO. BENCHMARK CURB CLEARING LIMITS CURB & GUTTER — — — — — PROPOSED PAVEMENT T VDOT STANDARD STOP SIGN EC-3A DITCH 200 EXISTING CONTOUR 6" DEPTH OF EC-3A DITCH 20o PROPOSED CONTOUR EC-2 DITCH 240.55 PROPOSED SPOT ELEVATION TBC DENOTES TOP/BACK OF g" DEPTH OF EC-2 DITCH CURB TAB DENOTES TOP OF BOX SCOTT/R. CbLLINS'Z Lic. No. 0357911n1 a 9/3/20 �v4` 0 N M rn NJ z W W ti M M C) N M O N N Q L J J_ U) 0 U i Y w U) F w U) a C) O N 5.1 z LU G z LU G z Q J a- 0- 2: Lr) 1 l0 LU Q 2 0 0 0 Q HMS W LU O U w J H I w w a Ln JOB NO. 122071 SCALE AS SHOWN SHEET NO. 1 `_____/ / / I ' ' / /' \\ \ \ \ \ \ I, \ 1 I \ 1 \ I I I I 1 I I I I I , I I I I I II IIII I 1 - \ \ - \ \ / / / / / / / / /' / / -- \ \ \ \ ` \ \ \ 1 I I I I I I I / / , / I I / l 1 I I IIII 1 I I I I - _ _ _ _ \ \ `-% I I I \\ I I I I I I I I I I I IIII 1 I I I I 1 11 I\ ' I \,n - ---- TMP NUMBER OWNER ACREAGE ZONING DB/PG / / / / / / // / \\ \ \ \ \ \ \ \ \ \ I I I / I I I I / / / / / / I \ I 11 I III 1 I \ \ I I 1 \ 1 � \ `) \ \ \ / i i i i i ii� / I I \ \\ ` ` \ \\`\\\\\`\ \\ \\ \\ \\ I I i i i i i I i i i it / ,' i i l i i i II \ 1 1 11 1` IIIII II I\\\\\ \\ \\ \I \ 11 \ 1\ `\`�\ - ` _ _ -`\/ '\ / A 02000-00-00-01900 WOODBRIAR ASSOCIATES 100.51 AC RURAL 690/232 T )) "b., \ , / / l / / / I // , ' / I . ` \ \ \ \ \ \ \ , , l I I l S 1 I I I I l / I / I / l / l \ I \ , I / III I 1 \ \ \ \ \ G C - \ -�--- , \ _ O�v / / / I ,' \ ` \\ \ \ \ \ \ \ \ \ / I i i i I v r l 1 i i / i / i ' '' /' ,' i ' I / I 1 I \ 1 I I I \\w� � a� i t � u ', -H --- _ % / B 032GO-00-00-001AO WOODBRIAR ASSOCIATES 3.04 AC PRO 1242/668 � f I 1 I l I / / r // I i / / / \ \ \ \ \ \ \ \ l , , , I I I r I I 4iYff f \ \\ \ \ 1 I \ `\ - I.- - - \ \`\�' ' ,' \ \ ` `/ \\ \\ \\ ` ` \\ i ' ' I r i i i i ! I l l ' / ' I ' I I I I\ 1�fft\ I II\ \ -- C 032G0-07-00-04400 ROBERTBELLORIESSICASWEENEY 0.11AC PRD 1749/069 O 4.\ IlI/,/'// ,'i \J ` \ \\ //l l///// / / ///I 1 IIII (IIII \11 \\\\\\\\\\\11\ 11\ \ ��_- I I I i I I / // i , I' /' \\\\\ \\// \ \\\ \\\ \\ \\ \\ \ \\\ ,' , , l , , I I I / I I / i i i i II i i I I 1 II 11 i 11 b \\\III\I\\\\\1\\\\ \ \ \\ \ \ \ \ \ \ 1\ I II I I I \ I \ \ _/�/'' - ---_ \` / D 032GO-07-00-04500 JIHAD AND AMREEN KASSAMALI 0.11AC PRD 4949/294 ``,` \`---- I i i i I / i/I/ / /i I `\ `\\ \ /` `\ \ `\ \\ \\ \ \\ \\ \\ \\ `\ `✓' i i ' i i i i i i i i i I ,/ , i / I\III I I i I o / \i 11I\ \\ \\ \ \\\\\\\\\\\\\I \ \ \\\\ \\\\ � \\\I II II \ \\ �\ I � I ' '' � ---- --- -- --` / ' i i E 032GO-07-00-04600 THOMAS AND KATHY HYRE 0.09 AC PRD 1211/688 � SCOTT R. 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No. 0357911� / / i / / , / \ \ \ \ ` \ \ \ \ \ \ \ `-' / / I \ - I I I I J I I I I I I I I I \ \ \ \ \ \ \ \ \ ` \ , \ I \ \ \ \ - ---- � ` \ I \ J 032G0-07-00-04700 DAVID GA, LORD 0.11 AC PRD 1346/659 A �4 ,///iiII _i /I /1/' \\\\\\\\\\\\\\\ ,' ///////�'//�////,/, \I°, III IIO .i lllll111\\\\\\\\\\\\`\\`\\ \`\1 \ x �-_ o t� \ \\ `\°\\� \ \ 9320 _+sew \' / / I I 11 / / \ \\ \ \�� - -' i i I I I III / ,' / `,Y \ \\ \ \\ \ \\ \ \\ \ \\ \\ \\ \\ \', ' /I /'/' / i i / / I / / / ' / / /' /' \\ Iili , I i , i I II li III 1, \I \I \\\\\ \ \`\ \ \ \` `\ \ \\1 I \ �'i -vim - m �� `\ `\ \ \ \ \ \ \ / 1 i 1 G 032G0-07-00-04800 MICHAELAND KATHERINE PEARL O.lOAC PRD 4514/719 �Pa� �M_ / / / I I ,III,' / , / /' \ \ \ \ \\ \ \\ \ \\ \ \ \ \ ,, ,/ /If /I i / / I ' I I I ' ' /' ' III I 1 I 4,4 I I I I I I 1 \ \ \ \ \`\\\\\\\\\\\\`\\ '\ / �''/' / ^i p_-N �\ `\ `�cc \I II II I �� Y ' H 032GO-07-00-01700 JOHN MBURU 0.08 AC PRD 4677/257 �'Qg tyG1 I` -' ' / I I l I I , / / / , ,/ _ - \ \ \ \ \ \ \ \ \ \\ \ \\ \\ \\ \__- ,/ // / / / / / / ' ' ' /' ' / % /' / I- ,'/ I 1I I 1 I \ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ,\ / / 9 ^ r ° \\ ��' 6 \ / 'ZONAL F' '-a„. ------ , I I I ' I11 i ' i i i / -- I \ \ \ \ \ \\ \\\\ \\ \ \\ \ \ \\___' ,/ ,I ,/// I/ � i i / i / / I / / // , � ,,.,/ I I 1 /-Q I i 1 I 1 1 I, \\ \\\\\ \ \ I\\ I \ , \\�\\�� I \ I ' \ /F,- �"� W N`\ o y 5354 \. \ \ \\ ' \ i � I 032GO-07-00-01800 RODERICK BURTON 0.08AC PRD 3640/217 / / / , // / I I I \L 1 I I l \ \ \ \ \ \ \ \ \ \ \ \ \ ` �`-I--- / , N (Dyeo---- N g�l 1 \ I / �I\ / I I l III / / / / \ \ \ \ \ \ \ \ \ \ \ \ / / / / / I / / I / / / / / ,, ,'' / / I l I \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \` \ \ � ` \ --- / P- N \ 1 \iD \ \ /— 1 I \_ ----'- , 1 \ I \ -I \ 1 E ; 'a- ' o N x O \ \ \�\ L` J 032GO-07-00-02500 BRIARWOOD HOA 0.66AC PRD 781 574 -h._ _, I 1 I I ,; I I ,/ / , , / /\_ _ - \ \\ \ \ \ \ \ \\ \\ \ _ / / / / � ,' / / J°/,' �''/ If I I , I I ' ` \\ `\ \ \ \ \ � � � \� � � � � \` \1 " / /'(O \ 2. � \ \ , _� - I 1 / ` `----' / 1 i I l i i i \ \\ _ I ' ' /", , ' ' ' / , \ `\ \ \\ \ " `\` \` ` ", \ \\ \ C: /' \ I I �`` �`` `` \ \\ \\ o I I v K 032G0-07-00-02400 ANGELA MAWYER 0.08 AC PRD 4366/589 _,_ / I IIIIIr I / / I I \ \ \ \ \ \ \\ `\\\ \ -/ ,/ / / / , I I / / ,/,'/ / l ' '�' �/ / / I I Q I \ \ \ \ \ \ \ \\ \` \ \ \\ \ ,, `\ --� / /--- ` \ \ $.\ / , / / 11'/ / / / I I \ \ \ \ \ ``\ \\\ ,, `\" \ \ .\ `�-_____� _ - 19-_i ' \\ `\ \ 1 I\ I W - II I / L 032GO-07-00-06700 WILLIAMVEST 0.08AC PRD 3271/292 .\ , , I, //1 I , , I / / _\ I, \ \ \ \ \ \ \ \\ ` _1'RE�y.'KV LJ �LQ��J/ / / ' ' l I 1 / / / / \,,pP I 1 I \ \ \ \ \ `� \ \ \\ \`, , �� - / ' ' / ------ `\ \ \ \ \ A �' I /_ _ / / / /, I / / m \\ \\ \ \ \\ \ \ \ \ , / / , / ' ' ' I 1 / I / / \C. \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ `� � �� ��� \ / \ \ \ \ f ------'----- .'/i l i I i , i \ \` _ 'I I /' /' ' / ' ''/. 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IRj Z 032G0-01-00-02200 DEBRAHSHELOR 0.09AC PRD 1825/128 m z -'I',\/ I I I oAA / i ---___-_--' - /` / '/ / / ' / I ¢' , /' 1 I � i I I / '---- _ ; - - f --_�\pk° 6j i I / AA 032G0-01-00-02300 CARRIEO'CONNORORLISAANNELACROI 0.10AC PRD 4836/744 r^ 1 , I I A I , / /------ '' a _ I , , , / // / 1 / / / /. / _3 I I l , I IF e4 r^,I If- - _-- - \ - I- VV \? r / o M I 1 _/ I BB 032GO-01-00-02400 MLATIBESEIDOU 0.11AC PRD 4921/70 u \`_ ,',''^I 1 ,'' /' /'" '' /' II ' / /--''_- ''/ '' 0 ' I � _' /' , , ,',I / / lay / / / ,, I /' / ' /'� / ' 1 / ' / / / , ' ' - --' �.f70 Y , /f, /� H I I 1 , I I___- /, I I __- 9 43 I II ,',' / ,I _ ,' / , / ,/ / � l / / /' L w,''' \ ,¢ I I I >I CC 032GO-01-00-02500 MOONIAKE,LLC 0.1OAC PRD 4740/31 / , / / / AA ,' / / , ' -- \ -i - -- ' / / ' ,/ , �3'1y','' , , , , / , ,' I I l l l / , s' , , , / f' .A_� ' --� , `-- 1 \ / \ I / , AA / a - - / , / / I / I / 1 I / ' / ,' f !� >\,' V _ DD 032G0-01-00-02600 ADAM AND JAYDA EVERETT 0.09 AC PRD 4326/667 W \ \`---___ / / AA / / / /' I I / ,e /5�',, I - `��' / / ,' I I, �- I 8 ,'- / /, ,/ / / , I / / , , , / / / j ,' / I/ / , I �` I I 1 - -- - - ' ,' / / A ,' 6� _ ---- ' ' ,' I / ' / - / / EE 032GO-01-00-02700 BRIAN AND DEBORAH STOLLINGS 0.10 AC PRD 1919/571 / - / / , \ I l , I� ,i�_1-i',i,i,/'� , / ,'/ / , , , / / / I / ' - / / I I I I P l / / Y. 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IN FEET v ` 1 v A I KK .I , �v� 1 II 1 -�+L II „ 1 .ab- �� ., 4 v v v �` �� �. ,` I v v �: _ v A ; AA AA I v I / r,y ... v v vv v ( ) v v i IvilvII ' I / �1 v"v a_ v/,, ,i/IIL/l////rr/// ,1 I /, v� -��` \. I AI Av v v v vv v A I 2 l inch=60 {t. i A V II I1A 11 11 I IlvV v��\`I,v� III///�//I,/l l l,, (/IIIIII il/"' rt' v� a�ql VI g 11 w A 1 v v v A Al vA��v 1v/A \ I 1 \ / \ - I J T \/ 9 I A II IA , I /„s/ I ,/, l//l, , / / / , �)`xg/%' �� _'�" k &sF v vvAv v GENERAL NOTES 1. THE OWNER/DEVELOPER OF THIS PROPERTY IS: WOODBRIAR ASSOCIATES P.O. BOX 5548 CHARLOTTESVILLE, VA 22905 2. THESE PLANS HAVE BEEN PREPARED BY: COLLINS ENGINEERING, INC 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 TELEPHONE: (434) 293-3719 FACSIMILE: (434) 293-2813 3. SOURCE OF TOPO & SURVEY: BOUNDARY OF THE SITE WAS PROVIDED BY LINCOLN SURVEYING IN FEBRUARY, 2013. TOPOGRAPHY PROVIDED BY THE ENGINEERING GROUPE FROM AERIAL FLOWN TOPO IN JANUARY, 2007. TOPOGRAPHY SURVEY WAS LATER UPDATED IN DECEMBER OF 2015 AND THE WINTER OF 2020. SITE WAS FIELD VERIFIED IN APRIL OF 2020. 4. ZONING: PRO 5. TAX MAP AND PARCEL NUMBER: TMP 32G-1R4 6. USGS DATUM: NAD 83 7. LOCATION/ADDRESS OF PROJECT: SUNSET DRIVE PROJECT AREA: TOTAL TMP AREA=27.351 ACRES; THIS PLAN's AREA=16.166 ACRES 8. SITE PHASING: CONSTRUCTION TO OCCUR IN ONE PHASE 9. PUBLIC UTILITIES: NO CONNECTIONS PROPOSED WITH THIS PLAN * COLLINS ENGINEERING SHALL NOT HAVE AUTHORITY OVER CONTRACTOR'S WORK, SAFETY PRECAUTIONS, SCHEDULES, OR COMPLIANCE WITH LAWS AND REGULATIONS. WE SHALL NOT ASSUME RESPONSIBILITY FOR ANY CONSTRUCTION STARTED PRIOR TO PLAN APPROVAL. EROSION & SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRAC7CES USED IN THIS SECTION CONSIST OF THE FOLLOWING: 3.01 SAFETY FENCE.. A PR07ECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT 774E UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC. J.02 C0NS7RUC770N ENTRANCE., A STABILIZED PAVED C0NS7RUC770N ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SI7E TO REDUCE THE AMOUNT OF MUD 7RANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON 774E PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. 305 SILT FENCE.• A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SMTHE77C FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING 7HE SITE AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CON7ROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 309 TEMPORARY DIVERSION DIKE, A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMW47ER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.14 TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH A CON7ROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND `DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. 3.18 OUTLET PROTECTION. - STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMW47ER OUTLETS, TO PROTECT 774E OUTLET S7RUCTURE, AND TO MINIMIZE THE POTENTIAL FOR DOWNS7REAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS: APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 319 RIPRAP: A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PR07ECT 7HE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW 7HE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTENTIAL FOR INFIL7RAI0N, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS AND OR NON -COHESIVE SOILS USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEG£TA77VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 331 TEMPORARY SEEDING: 7HE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE 774AN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION: THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER 7HAT IS EC ADAPTABLE IV SITE CONDIITVNS, AIVV ALLVVVS JELEL:IIVIV Vr THE AW APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 338 TREE PRESERVATION AND PROTECTION: PR07EC77ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE 7REES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. 339 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEAL7H HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. SOIL DESCRIPTIONS 26- CHEWACLASILT LOAM -o%TO2%SLOPES SOIL CONSISTS OF VERY DEEP, SOMEWHAT POORLY DRAINED SOILS IN RIVER VALLEYS. SURFACE RUNOFF IS NEGLIGIBLE TO LOW WITH MODERATE PERMEABILITY. agB- CULLENLOAM -2%TO7%SLOPES. SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM FROM MIXED MARC AND FELSIC CRYSTALLINE ROCKS. SOIL LOCATED ON UPLAND RIDGETOPS AND SIDE SLOPES OFTHE PIEDMONT PLATEAU. 47D- LOUISBURG SANDY LOAM - 25%TO 25%SLOPES. SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH RAPID PERMEABILITY. FORMED IN MATERIAL WEATHERED FROM FELSIC IGNEOUS AND METAMORPHIC ROCK. SOIL LOCATED ON SUMMITS AND SIDE SLOPES OF THE PIEDMONT UPLANDS. 47E- LOU ISBURGSANDYLOAM -25%TO45%SLODES. SOIL IS VERY DEEP, VERY FINE, AND WELL -DRAINED WITH RAPID PERMEABILITY. FORMED IN MATERIAL WEATHERED FROM FELSIC IGNEOUS AND METAMORPHIC ROCK. SOIL LOCATED ON SUMMITS AND SIDE SLOPES OF THE PIEDMONT UPLANDS. EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIM17ED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.'ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING ACTIVITIES AND DURING SI7E DEVELOPMENT UN77L FINAL STABILIZATION IS ACHIEVED. ES-8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. 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 THE EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. EROSION CONTROL NOTES 1. 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, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 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 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 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 STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY FREE OF ROOTS STUMPS WOOD RUBBISH AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. 15. BORROW FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN 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 0 SLIDES SINKING OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT UNIT BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS 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 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 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 SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN 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 REPAIRED IMMEDIATELY. 20.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 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.) 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) Paved construction entranee for erosion control plans -'OvE 70, YIN. _ CNSTRUCTION .1:CF55 3- SM-2A ASPN4T 'OP COUNSE ExISTING Rx 2S PAKMENT W WIN 2'A AGOREGnE BASE PROM STONE 70' MIN. CONSTRUCTION ASPHALT PAVED A AGGE55 WASIn1IEr El1SRNG 2% `x PAVEMENT 2x 12' MkN.- ~POSITNt DIUINAGE 'MU9 CVENJ 'LL- Wp'I• A TO SEDIMENT OF INGRESS AN> IG7l3 1 TRAPPING DEVICE OPERAnON ppI, ������ -12' MIN POSIrIVE ..x TO SEE SEDIMENT E DIG TO DEVICE rIUER CLO'H SECTION A -A nwwurog gala hp of 1 gl.h,nu,l be u.A Aa l ailh a NwwnlaA11 w.h baa. ock lanoD cah a'niI a , AI 6,e avdl a ,Wendel of 1 ' uaba, t", adcquMe ♦,nLtwn I11C"IuC Wa:h,%akstun,11N, L L11ed.,waN hnlnnlC Cah..,Ck, all Iypoccvl eettWlx Wea to lnuoa<.wlunmt .4a glunnll ,haO he plesmtavl Dom mtawx,t.w .haul, dI o, watncomea PAVED WASH RACK DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES: IT IS ANTICIPATED THAT A CONSTRUCTION ENTRANCE, TEMPORARY DIVERSION BERMS, RIGHT OF WAY DIVERSION, A SEDIMENT BASIN, OUTLET PROTECTION, INLET PROTECTION, AND SILT FENCE WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. 3.01 SAFETY FENCE - SAFETY FENCE WILL BE INSTALLED AROUND THE PROPOSED SEDIMENT BASIN. 3.02 CONSTRUCTION ENTRANCE - ONE CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT SUNSET AVENUE EXTENDED. THIS WILL BE THE ONLY POINT OF INGRESS AND EGRESS TO THE SITE. CARE WILL BE TAKEN TO PROTECT ADJACENT ROADWAYS FROM TRANSFER OF SEDIMENT. 3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF DISTURBANCE WHERE NOTED ON THE PLANS. 3.07 STORM DRAIN INLET PROTECTION- IP WILL BE INSTALLED ON EACH PROPOSED INLET AS SHOWN ON THE PLANS. 3.09 TEMPORARY DIVERSION DIKE- DIVERSION DIKES WILL BE USED AROUND THE PERIMETER OF SITE DISTURBANCE WHERE SHOWN ON THE PLANS TO DIRECT RUNOFF TO ON -SITE SEDIMENT CONTROL FACILITIES. 3.14 TEMPORARY SEDIMENT BASIN- TEMPORARY SEDIMENT BASINS WILL BE INSTALLED WHERE SHOWN ON THE PLANS. 3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE PIPES WHERE SHOWN ON PLANS. 3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE SHOWN ON THE PLANS. 3.31 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.38 TREE PRESERVATION AND PROTECTION- TREE PRESERVATION FENCING SHALL BE INSTALLED WHERE SHOWN ON THE PLANS. NO TREES SHALL BE HARMED OUTSIDE OF THE LIMITS OF TREE PROTECTION FENCING. 3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE SITE WHERE SHOWN ON THE PLANS. STORMWATER MANAGEMENT: STORMWATER RUNOFF QUANTITY WILL BE TREATED WITH TWO LEVEL I BIORETENTION BASINS WITH DOWNSTREAM DETENTION. SEE STORMWATER MANAGEMENT PLAN SHEETS. MAINTENANCE.• IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS: a.SEDIMENT BASINS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. ID.ALL INLET PROTECTION AND GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WILL BE REMOVED AND CLEANED OR IT WILL BE REPLACED. c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR ON -SITE. THE CONTRACTOR WILL BE DETERMINED AT THE TIME THE CONTRACT IS AWARDED. IN ADDITION THE DEVELOPER MAY BE CONTACTED. UPON COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. 3.001 SAFETY FENCE PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE Source: Adapted from Comved Plastics and VDOT Road and Bridge Standards a PERSPECTIVE VIEW METAL FENCE Plate 3.01-1 EROSION CONTROL NOTES & NARRATIVE PURPOSE: THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO GRADE THE SITE FOR THE PHA EVELOPMENT IN THE BRIARWOOD SUBDIVISION. THE TOTAL ACREAGE TO BE DISTURBED WITH THIS PLAN IS 9 ACRES. EXISTING SITE CONDITIONS: THE EXISTING SITE IS A VACANT, WOODED, HILLY PARCEL. THE SITE IS GENERALLY WELL DRAINED WITH PRESERVED AND MANAGED STEEP SLOPES. EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXISTING SITE SLOPE AND PROTECT THE PERIMETER STREAMS AND ADJACENT PROPERTIES. ADJACENT AREAS: THE SITE IS POSITIONED SOUTH AND EAST OF DICKERSON ROAD AND WEST OF THE EXISTING HUMMINGBIRD LANE SUBDIVISION. IT IS BORDERED BY THE NORTH FORK OF THE RIVANNA RIVER TO THE SOUTH. 0 - LA I U AN IS P POS D. IUT LIMII P- LIC I T- F-WAYS, PUBLIC EASEMENTS ) Q AND TMP 3213-0128 (ONLY AFTER WRITTEN DOCUMENTATION PERMITTING DISTANCES IS PROVIDED). } MANAGED AND PRESERVED STEEP SLOPES TO BE IMPACTED. STREAMS AND BUFFERS TO BE PROTECTED. WOODLAND PRESERVATION AREAS TO BE MAINTAINED AND PROTECTED WITH TREE PROTECTION FENCING. SOILS: SEE SOILS BOUNDARIES ON THE EROSION AND SEDIMENT CONTROL PLAN SHEET, AND DESCRIPTIONS ON THIS SHEET. SEQUENCE OF CONSTRUCTION: 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 3. CONTRACTOR SHALL IDENTIFY THE LIMITS OF DISTURBANCE AND INSTALL TREE PROTECTION FENCING WHERE INDICATED ON THE PLANS BEFORE ANY SITE DISTURBANCE SHALL TAKE PLACE. CONTRACTOR SHALL ENSURE THAT TREES TO BE SAVED ARE FLAGGED ALONG THE LIMITS OF CLEARING AND PROTECTED. 4. INSTALL THE PAVED CONSTRUCTION ENTRANCE WITH WASH RACK AS SHOWN ON THE PLANS. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. INSTALL THE WASH RACK UPHILL FROM THE PROPOSED SEDIMENT BASIN. ACSA WILL DETERMINE THE APPROPRIATE METHOD OF SUPPLYING THE WASH RACK. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUCTION ROAD STABILIZATION IS INSTALLED. 5. CONTRACTOR DOES NOT HAVE PERMISSION TO CLEAR CUT THE SITE PRIOR TO INSTALLING THE PERIMETER MEASURES AS SHOWN ON THE E&S PLAN. CONTRACTOR SHALL EXPEDITE INSTALLATION OF THE PERIMETER EROSION AND SEDIMENT CONTROL MEASURES AND PROTECT THE SITE WITH THE LEAST AMOUNT OF TREE REMOVAL NECESSARY TO INSTALL THESE MEASURES. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL PLAN SHEET. THIS INCLUDES THE SEDIMENT BASINS, SILT FENCE, AND DIVERSION BERMS. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, BERMS, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN. 7. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE I EROSION CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES THE CONTRACTOR CAN BEGIN GRADING OPERATIONS. SEDIMENT CONTROL PLAN. 10. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE II EROSION CONTROL PLAN AND THE SITE HAS BEEN ROUGH GRADED TO THE EXTENT SHOWN IN ESC PHASE II THE CONTRACTOR CAN REQUEST PERMISSION FROM THE COUNTY INSPECTOR TO PROCEED TO ESC PHASE III. 11. UPON OBTAINING PERMISSION FROM THE COUNTY INSPECTOR TO PROCEED TO ESC PHASE III THE CONTRACTOR CAN EXPAND THE LIMITS OF DISTURBANCE, ROUGH GRADE THE LOTS & ROAD AND FINE GRADE THE FILL EMBANKMENT. AT THE TIME OF THE EMBANKMENT's FINE GRADING, THE CONTRACTOR SHALL ALSO INSTALL THE PERMANENT RETAINING WALLS. ONCE THE EMBANKMENT HAS BEEN FINE GRADED, THE CONTRACTOR SHALL INSTALL A TEMPORARY DIVERSION BERM AT THE TOP OF THE FILL SLOPE TO REDUCE THE RISK OF ROAD & LOT RUNOFF FLOWING DOWN THE EMBANKMENT. 12. THE CONTRACTOR SHALL THEN INSTALL THE PROPOSED STORM SEWER RELOCATION. THE DROP INLETS SHALL BE BOARDED UP TO PREVENT SEDIMENT FROM ENTERING THE SYSTEM, ALLOWING THE STORM SEWER TO SERVE AS A CLEAN WATER BYPASS.THE INLETS SHALL BE BOARDED UP IMMEDIATELY FOLLOWING CONSTRUCTION. 13. FOLLOWING THE INSTALLATION OF THE STORM SEWER RELOCATION THE CONTRACTOR SHALL INSTALL 2 SEDIMENT BASIN 3. SEDIMENT BASIN 3's FOOTPRINT SHALL BE POSITIONED OUTSIDE THE LIMITS OF THE # # FOUNDATIONS FOR THE HOMES PROPOSED IN LOTS 132 & 133 AS SHOWN ON THE ESC PHASE III PLAN. THE CONTRACTOR SHALL ROUGH GRADE THE LOTS AND ROAD SUCH THAT RUNOFF ENTERS SEDIMENT BASIN 3 #1 AS SHOWN ON THE ESC PHASE III PLAN. 9. CONTRACTOR SHALL INSTALL ANY REMAINING ESC CONTROL MEASURES SHOWN ON THE PHASE III EROSION & SEDIMENT CONTROL PLAN. 10. ONCE THE FILL EMBANKMENT HAS BEEN FINE GRADED & STABILIZED, THE RETAINING WALLS HAVE BEEN INSTALLED, THE BOARDED UP STORM SEWER RELOCATION HAS BEEN CONSTRUCTED AND THE LOTS AND RDA HAVE BEEN ROUGH GRADED TO THE POINT WHERE SEDIMENT BASIN #3's PRESENCE IS HINDERING THE FINAL FINE GRADING OF THE LOTS AND THE ROAD THE CONTRACTOR CAN PROCEED TO ESC PHASE IV. AT THIS TIME TEMPORARY SEDIMENT BASIN #3 CAN BE REMOVED. THE CONTRACTOR SHALL NOT PROCEED TO ESC PHASE IV AND SHALL NOT REMOVE SEDIMENT BASIN #3 WITHOUT PRIOR APPROVAL FROM THE ESC INSPECTOR. 11. IN ESC PHASE IV, THE CONTRACTOR SHALL COMPLETE THE ROUGH GRADING OF THE SITE AND THE ROAD. A THIS TIME THE CONTRACTOR SHALL ALSO INSTALL THE REMAINING STORM SEWER STRUCTURES AND UTILITIES. THE CONTRACTOR SHALL INSTALL INLET PROTECTION IMMEDIATELY FOLLOWING THE INSTALLATION OF ANY DROP INLETS. THE BOARDED UP INLETS INSTALLED IN ESC PHASE III CAN BE ACTIVATED IN ESC PHASE IV. THESE INLETS, IN ADDITION TO THE OTHER PROPOSED INLETS, SHALL RECEIVE TREATMENT VIA INLET PROTECTIONS. 12. ONCE THE LOTS AND ROAD ARE ROUGH GRADED, THE CONTRACTOR CAN INSTALL THE ROAD's CURB AND SUBBASE. THE CONTRACTOR MAY ELECT TO DELAY THE INSTALLATION OF THE ASPHALT'S TOP COAT TO REDUCE THE RISK OF PAVEMENT DAMAGE. 13. FOLLOWING THE ROAD's CONSTRUCTION, THE CONTRACTOR SHALL INSTALL THE SIDEWALK. 14. THE CONTRACTOR SHALL INSTALL ANY REMAINING ESC CONTROL MEASURES SHOWN ON THE PHASE IV EROSION & SEDIMENT CONTROL PLAN. 15. ONCE THE SITE IS FULLY STABILIZED, AND THE -OINTRACTOR RECEIVES PRIOR PP OVAL FIR E S INSPECTOR, SEDIMENT BASINS #1 & #2 SH 16 TH 0 QHDI T 'HE COC P O S PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 17. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN CONVERT THE SEDIMENT BASINS TO THE PERMANENT STORMWATER MANAGEMENT FACILITIES. NO E&S ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 18. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 19. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. SN SL TABLE 331-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' Rate Planting Dates Scenes bs. e Sept. 1- Feb. 15 50150 Mu of Annual Ryegrass (IoIium multi-ROram) & 50 - 100 Cereal (Winter) Rye (Swale eereale) Feb. 16 - Apr. 30 Annual Ryepass 60 - 100 (LDlium multi-fiomm) May 1 - Aug 31 German Millet 50 (Se aria s alg) Source: Va. DSWC TOTAL LBS GENERAL SLOPE (3:1 OR LESS) PER ACRE KENTUCKY 31 FESCUE 128 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP 20 LBS. SEASONAL NURSE CROP 150 LBS FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOTES: 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION IN ACCORDANCE W VESCH STD 3.35. OPS PERMANENT SEEDING SCHEDULE NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) FENCING / ARMORING t ` 1 � 1 1. r y. DRF ONE . s S4M FENCE w ( ?, III �I I III r I II I 111 III I L i,l I I I- I ill III' .ullll I� I II �I I Ii.- J00INN � III II J'laININ NON VON CORRECT•a I.. FENCE �R &t/a. CORRECT TRUNK ARMORING TRIANGULAR BOARD FENCE TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Nozzle Gallons/Acre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,2W Latex Emulsion IM:1 Fine Spray 235 Resin in Water 4:1 Fine Spray 300 Acrylic Emulsion Non -Traffic 7:1 Coarse Spray 450 ( ) P Y Acrylic Emulsion (Traffic) 35:1 Coarse Spray 350 Source: Va. DSWC ATTACHFILTERFABRIC TOSTAKESORPOSTS& EXTEND ITINTO TREND DENSTAKE POST 'TH=5'MIN. EXCAVATED 5 BACKFILLEDA COMPACTED SIL T FENCE sF (WITHOUT WIRE SUPPORT) NO SCALE ON SHALLOW SLOPES, STRIPS -II"IT°ice:%�::r=�•:BEHIND THE BERM. �•:. / - =------ PARALLEL SfOATHE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH IF AT ALL POSSIBLE. BERM OF THE SLOPEI- AND ANCHOR If I -I I -I I III -III -I - 'I RSCPCONGPPOTTEEEARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. 0gIM SOIL STABILIZATION BLANKET NOTE TREATMENTi SOIL STABILIZATION MATING MATERIAL SHALL BE INSTALLED AS NO SCALE REQUESTED BY THE ALBEMARLE COUNTY EROSION CONTROL INSPECTOR k7 SCOTT/R. Cb'LLINS'? Lie. No. 035791 .11� A 9/3/20 Aj HI Z. F�1 W w ED N M m L7 A'` U] z CA ti M CM CY) N C) 1 N O N N Q LU J J CO LU Q U 1 Y w `/ D^ U) LU LIJ U) w Of r� V O N T� z LU G z LU z LL 1 LU V/ 2 c- 0 0 0 HNNNNII �0/ . W LU INNNNNNN LL Q z 0 INNNNNNN 0 U LU G H-I 0 LU V) C6 z 0 I-­N! 0 LU W J ti b ~ W w W a U) JOB NO. 122071 SCALE N/A SHEET NO. 3 ' , / ,' NOTE: TOTAL LIMITS OF DISTURBANCE APPROVED WITH WPO 201600054 /�/ /' /' /' y� FOR ESC PHASES I & II) _ .92 ACRES. TP / / / / / / / / // / _ / / / / �� MANAGE /io / / I / /// / // // / / / � R P/ / / / / SF O° ���/ P ESER�ED COS O° '4°//'// q /' /' / / /' / / �/' _ - ' / / y!� EROSION & SEDIMENT CONTROL PHASES I & II ,// Q / i / i / / °O / / / / / / �a°Q / / PROPOSED LIMITS OF CLEARING (TYP. / LIMITS OF DISTURBANCE (TYP.) / / / //�/ // / / / / /' / // / / // ♦ // / // / ♦� / / / / III /I // / //// "�—� � I / � / / / / ` / / ( \ V — — \ / / / /,/ / / / �09 / / / /� / / / �►� / III I / / / — 1 / / / / / v / / �I A \ DD /4 SOIL DESCRIPTION (TYP.) ♦ r I I icy ♦ / / / / / i / / I \ \ �c}// / / / / / / / ♦/ / / / / ♦ / PROPOSED DIVERSION BERM. - / / / / / / / /Qo/ / / / / / / / / / / / / ♦/ / / CONTRACTOR SHALL ENSURE ♦ LOCATIONOFI 1 \\ \ \ \ \ \\ \ \ \ / /POSITIVE SLOPE MAINTAINED, ♦♦� I FUELING AREA / I \ \ \ \ 0� DD / ♦♦ ♦ \ / / i8"BERM PROVIDED. BERM ♦ / / / / / / 9qF / / / / / / / / / / ♦ , / / SHALL BE STABILIZED AS A ♦♦ \ \ I I / I I I III 1 FIRST STEP IN DISTURBANCE ♦ LOCATION OF v v V /// ///// // /// / // /,////// ///' � o/ /// / /' // /// / // //// / /,4//0//// 4/ /Q/ j /// , / / // / / /// // /// /// / // / / / // //� / / / / // / / / / / (/ ♦♦ I /♦ l/ /\I I / / / i / \/ ♦ 1♦ ♦/ /' '♦/' / v \ o \I \IDUMPSTER\ V 1 A IV AV IA\ V A\ v\A \\1 \ 1 19■)3■ ■■ ���- - ' /—/ -\ \ /' v�Qv"w1 I I I -1 coEXISTING PRESERVED Ln S/�\ ZTEEP SLOPES (TYP.) ° ■�■■E/561 DA=o.68 AC. 0/ ♦ Cw=o.30 RAINAGE DIVIDE (TYP.), fiP ��bo-Tr=io.5 MIN. T a SEE SHEET FOR SBi / + \ \ ♦�/ DESIGN INFORMATION / / \ \��p \ "'" * XISTING TREELINE (TYP.) \ \ \ \ \ \ I•\ \ \ \ \ \ I y \ y \) _ /� O� ��' I �` 1LU lk PROPOSED // / // / // / / Q6/ / / ♦ \ \ \ \ LOCATION OF \ \ \ \ \ \ \ \ ////�///// // // �♦ SB1 P \\ \ ■ STOCKPILE /x / / / // / / / + ♦ \ \ \ ■ AREA SHALL BE / \ \ \ \ PORT -A -POTTY \ \ \ \\ \ �\ \ \ \ // / // // / / / / / / / / ♦ \ \ ■ SURROUNDED / j // // / / / / �i / / / �♦ A \ A t BY SILT F NCE p /qq/ v \ v ♦v v:/+ � / l�,/ /v SOvIL LvINA E (TYP.) 4Q 10Av F\LOAW DIRECTION \ A\RROW\ (�TY\P.) \ \v\ \ s\a \ \\\ \ v \\ \v \\ \ v \\ \\V \ v \ \v \ \\ A \\ vv \ \ \v \ \ \ \ A \ O \ — T A v \ ESC PHASb A\ \\ \\ \� v A\ \\ \ v / II ■ 11 1v vv /1 / SB2 DA= AC. v \ v v v V v v l"/ 434 \ v v v �v v V v\ \, ■ v __—v /I I I \ \ \ \ \ \ PROPOSED DIVERSION BERM. \ \CW=o.35 CONTRACTOR SHALL ENSURE \ \\\\ \\ \ \ \ \ 12X7oMIN. �,CETC=11.S MIN. ,POSITIVE SLOPE MAINTAINED \ I " 18BERM PROVIDED. BERM SHALL BE STABILIZED AS A � / / � \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ C I \ \ I / / I /A mod- - SF � \ FIRST STEP INDISTURBANCE / / \ \ \ \ \ \ \ \ \ \ \41 lyz- i ---- 6d/ - - - - - - 10\ ccV -�// V A\ \\ \ �� AAV A A \ \ V A A A DID -TS --- --/ / \ \ \ \ \ \ / / VBO� VA \\mod\ \\ \\ \\\\ \ / ♦♦ o \ \ \ \ \ \\ \ \ \ \ \ / /' \ \ \\\ \ \\\ \\ \ \ �i ° I / �v /i � � v v v v v v v v vA \ 1 I I I � I �/I l �' � /♦ / v aWP��1 \\\\ \ \ \\ \\ / \ \ \ v,' V \�\\ \ VA A b\\ \\ \� \\ T2. /w�"�9G// / ///� � V A \\ \\V A A \ \ \ I � /\ / j///DC - L — ♦ / '/ /'/ /'/ / / A / / SEESHEET8FORSBz_ / TP �� / / -DESIGN INFORMATION \\AAA \VAAA/// / / // / AF OO - _-- j' \ \ \ �y + / �o, / // // / / PROPOSED LIMITS OFCLEARING (TYPJ' /�' /�\ \ \\ �/ / ry \ \ \ \ \ \ \ \ \\\ /QJ LIMITS OF DISTURBANCE (TYP. _39o_ /� / III I / �/ / / // / /// / / / / �1{j♦� 11 I I i // / /// // IIII I 1 ///// T' �-■��� / I I / I 3aa.=— I � I I I /♦ / / � I� / I ♦� / ■ 3 I lla/�/ l \- v, � /-1 ✓ll� I I I� I I I I I I I I I I / 1 I I / / � / / I ,. I I lc,I I I I I I I I I I I I I I I I I / I • I \ \ I 4f#�� o / / I EXISTING MANAGED - i - -3S4 _ - \ \' I I l I / / I o STATE DAM BREAK I I I I I I I I I I STEEP SLOPES (TYP.) ITYP. / �� INUNDATION ZONE, TYP.( 1\ \\ \ \ \ \\\\ \\\ I I I I I I I 1 411#� Vv v. v v vA VAAIA V A � I I I I I I I I I I I I I I I I I I I I I I I v v v y v V A oI I I I I �All y vv. vy — Avvvy�y� A\(\VAA \V A A VIIIIII I I I I I I I I I II I I �I at �■ 1► 19 0 1 \ \ \ \\ \I l \ \ \ \ I \ l \ \ \ l 1 1 \ I 1 I I I \ \ I I I\ LINE (TYP.) \ PROPERTY , \ \\__-- \ \ \q\\' \\\\\\\\\ �\\ \\ \\ \ \ \ \\\\\\ \ \ \ \ \ 1 1 1 1 I \ \GRAPHIC \ C�L�j V A\ V\V�� A A V qqVA VA \ V A V A \ \V A\ V l 1 1 A \ \\ 7 A 1 £ I ■ 31 \ \\ R \ \ \ \\ \\ \ \ \ \ 15 3 �60 @ \ ,20 \\ \\ \\\ \ \\ \ \ \ \ \ \ IP FEET inch \= 3\0) ft\. \\\\\\\\ \\\\ \\\ \ \ \\ \\ \\ \ \ \ \\ \ \\ \ \ sue— g SCOTT/R. CBLLINS7 Lic. No. 035791,a A 9/3/20 4�j \ 0 rn r' T� M z N \ CY) W 1 � N Q O z z W N w � Q O ccl Cl)Q 0 O � W V) LU v >`n 1 O- Y l0 z O LU w O V J Ul F_: �_q a IJD W o— W F_ C _ cn O a ~ O LU O �/ Q Ce- O O CN w J ULU ~ O w w \ d JOB NO. 122071 SCALE 1"=30' SHEET NO. 4 / , NOTE: TOTAL LIMITS OF DISTURBANCE a APPROVED WITH WPO 2oi600054 FOR ESC PHASES I & II) _ .92 ACRES. TP — MANA'GEC�SL��ES/C�z / / / / / / / / / / / OO I I / / / i/ �4 / / / / / / /��� PRESER�ED ��OP S L _ — _j'/ / / q / / / y2� EROSION & SEDIMENT CONTROL PHASES °O / / / / // j / a°Q4 / / PROPOSED LIMITS OF CLEARING (TYPJ i' _ �� ' / / / LIMITS OF DISTURBANCE (TYP.) // _� / 0 PROPOSED DIVERSION BERM. / / / ' / �� / ♦ ( / / / / / / // // / / // / -O` _ —� / / / / / / / / / \ \ /, CONTRACTOR SHALL ENSURE'' Qo I \ / / / / / / / / �4,POSITIVE SLOPE MAINTAINED, / / / / 1♦ / I / i8" BERM PROVIDED. BERM/ / / SHALL BE STABILIZED AS A / ' /' ' DID) ♦ I I I / \ FIRST STEP IN DISTURBANCERON / / / ♦ /' / ♦ • I I�1�� / /' /' / / I \ \ / /////'/ /' 6° //'////// / /' // ' / // / '♦/' // , '/ PS LOCATION FUELING AREA \I\\\\ \ \\\\\\/ zvg 'W I \\\\\ \\ /'I ♦♦DID / / \ LOCATION OF 4 / / / / / ♦ / / / / / DUMPSTER v \ / //// / //�// // / / / / / / / / ♦♦ / I / / l / / /�' / r I I I I I I \\ \\ \ \ I / / J / �/■//■\ ■ i\' \ / I vl \ co 1EXISTING PRESERVED/ Ln STEEP SLOPES (TYP.) ZLOCATION OF ■■■■ ° EXISTING TREELINE(TYP.) PORT -A -POTTY \ / r a ESC PHASE II V SEE SHEET 8 FOR SBi /DESIGN INFORMATION / / \ \ \�cp \ ... * CW=0.45 \ \ \ \ \ \ / _ — ■ ��_ I TC=13 MIN. \ \ \ \ \ 01 Y � Lu � I\ce SCOTT/R. CBLLINS7 Lic. No. 035791 a A 9/3/20 4�j /j j'// // // / /' Qa/ / / / / ♦♦ \ \ \ \ \ I PROPOSED \ \ \ \ \ \ \ \ \ \ ` \ �\ \ \ • � `h ` � \ \ I II / / / SB1 \ \ \ STOCKPILE \ \ \ \ \ \ \ \ a7 / / / / \ \ \ AREA SHALL BE SURROUNDED / \ ` \ � �\ \ \ \ \ \1 ♦■ I \ � / // /// / / / �/ / / ♦ v \ V A \ BYSILTFENCE FLOW DIRECTION ARROW (TYP. A ■ — /q \ \ \ \ \ \ \ \ \ y \ \ o d / / / / / � / / * , — ♦ \ \ ♦ '�_x � RAINAGE DIVIDE (TYP.) /o/ v 13/ / I �� �v vV A \V A \ / / ♦ / v v PS v ,■� \ \ \ \\ \\ \ \ V A / A I \V / v / l l/ G/ME to l /Ol \ • I Joe I \� � � `\\ \ �� _ // \ \ \ \ \ \ \ \ \ .\ \ / / / / \ \ \ \ \ \ � \ \ \ �♦\ \\moo \ 1_ \ � r� \ \ate SF _ �'' /' — — \ \ \ \ \ \ \ \ \ \ / \ 4 \ \ \ \ \ ` \ \ \ I \ 1Zj / b \� M \ \ \\ cyj au.— \ � _\ �\ �\ � � —------�O�OOi3--60606�Og.6-b-S-O(}Ba0 �\\ � `\ `\ \ \ \\ \ \ \\\ 6 / \ 4 \ \ \ \ \ \ \ \ \ \ \ \ �\"\ \ ) (V PROPOSED DIVERSION BERM. \ PS / \ \ \ \ \ \ \ \ \ \ \ \\ \ _ — ` �k \ \ \ \ \\ + / \ / d' 4W V A CONTRACTOR SHALL ENSURE v -— — — __ — — — — -- -- POSITIVE SLOPE MAINTA BERM PROVIDED.INEDM, S / / / / �/ \\ 43 A A A \\ V \A \ \A \ \\ \ \ A\ A \\ V—_ — -- — `�` A♦\ \\ CV SHALL BE STABILIZED ASA c Z v \ \ VA\�- .== - �o �—� ' /_ _ /— ._--�— \C ��\ T_. AV A V A A°�VA\\ \ V A A ` ♦ /Lu / / ■ 42 V A A V A \ V ) — A\ \vV v\ V\�SFFIRST STEP IN DISTURBANCE\ \ ♦/° --' / I / N \\.`V�-— V-l\\J\V AA VAA ZA VA A\VA� / ♦ V VA A V A \ \ \ V / /—\ V (� \\ �� �� �v �A\ V AAV ` �V`A VA\ \ V A A 1• ■ ♦ / / V �V `\ ` \ \ CP\AS II / / / v v�v V ♦ s / / v vv/ \`\ Q\ B-2 DA=2.22 �AC. TS Ld v P °v v v a _ v v v v Cw=o.40 \\\\ \\ 1\__// / / / / �'� 4 — \ \ \ \ \ \ Tc=g. MIN. v vvvv v v v v,v v v v v �' efi 6 v ` l ss I i/ // / Q Q�0 Q O Vv vA \ / / /// o a ` v — — �' O V i �� vv`vvvAA VA �v// '� v �a ``�o A'' /'/ ' U Aaa (� /� v vv —Lli A \ VA�\NOTE: SLOPES STEEPER THAN 3:i / ,6- / A V / / / / / / / o/ SHALL BE PLANTED WI SNIPER / / / ' V — + I / / + \� // // / ♦ / / I W IDS 0 Lr- / �y.y �vvv`vv vvv\— /09 / / / /' v �asv ♦ �� I / / / /, � � i I � ♦// U� � � / � J � r-, (0` V` 7 V` �, CO / ' / / / A � SEE SHEET 8 FOR SBz_ / / " ' / /'/' '/' / /' / / / / / / s �� �%�i V J W VA6�v/ /// /// /'/ �b DESIGN INFORMATION —/ / / / /// j T� //' // / / ' / / T- O° .�/ PROPOSED LIMITS OF CLEARING (TYP.)' ld '^ i LIMITS OF DISTURBANCE (TYP. 1 I I \ \\ \\ \\�\ __ (�1 I I k,/ / // // / / 1/ / IIII p ■ —39o_ �./ -� I I I I/ �/ l/ // l l l l/ l I l/ I l I // I l I /1•L• I I I I I i // �� /' /' IIII 1 —/ ■ ul (n W .= \ \\ ___ / lI� 11 I / lal l/ // l l / l / I I I I I I f ♦i / ' / ' I 1 / ■ W l I 6 1 1 1♦ /�/ _ 1 I I I 0— W l I I l I I I I / / 1♦ / ■ ■ 3 W j/ \\ /.✓ /. l l l l I I I 1 I Z (n ` I I I I 1 ♦/ // I I Q I� I I I I I I I� I I I I I I I I I I l I j l l l l l � I I I I I l l I ♦♦ ' ' _I I \ V I I � I \ \ III al I 11 1 1 1 ♦` / I ■ �O T _� v A � I/ / I I I I I I I I I I I I I I I I I I I I I I I I I l l l I I I I I I I I ♦ / / \ V ■ I I H v V /f I I I I I STATE DAM BREAK I I I I I 11 I I I EXISTING MANAGED W I ■ * i INIUNIDIIATION ZONE, TYP I I I STEEP SLOPES (TYP.) I��j I I I I I I I I I I // ♦♦ —/ II I - III �II III II III III �II �II II I IIII I I I II I I I j I qI I I / P/ / � ♦♦�/ -- �♦ •1 ♦ ' pSF o� -- VQC� QI—I m �v vAvyVA\,V\VA\ V A V6�11 1� 11 1 I� I I I IIII � 1 1 1 I I I I I I I I I I I I y V\ V A `\ VA \ V A 1 VIIII 11 V I \ 1 I 1 I II I I\ I II 1 I II I II PROPERTY LINE (TYP.)Lu v \\ V A\ V Poi\ V1\ 1V I\ 1 I I-- \\ \\�;\�\\\ \\ \o \\ \\\\\\\ \\\\ \\ \\\\ \\\\ \ \\\ \ 1 \ I 1 I I I I I \ \\ \ \ i i I ■ I I 0 \ \ V \ \\A\ \\ -ASqV\\\V ��\V\ \\A` A\\V \AA\ \AVA�'�\\V \A\ V\A\ V\\A V\\A \ \\ \� A\ \\\V\ \\V\ A\\V\ A\ \ \ \\ \ 1 1 1 1 \ \ 11 I A 1�\ \ I \ \ A\ \ \ \ \ \ \ \ \ � I I II I— ■� ■� � I 0- \ JOB No.GRAPHIC \�C�LE _ ,20 5 3 �0 \ \ \ I ■ 122071 \ \ R \ \ \ \ \ I I I I \ SCALE \ \\ \\\ \\\ \\ \\ \\\ \\` \` \ \\\ \\ \\ \ \ \ \ \ \ \ \ \\ \ \ \ \\�}. \\\ \ \ \ \ \ \\ \\\ \ \ \ \ \ \ \ IP7\FEET )\ \ \ \\ \ \\\\\ \\ inc\h 3\0 f�. SHEET NO. -------00.0�C)000000$--///'/ °U00 _ -- 0-00-a-CC o_O 00 --- Ob00 ---- / i�/' \ -- 000p0Ob0b6� 6CTOt5000 / // oQ / /--- -- -- — —— / qCON —— / ' ' / / / � � � TR / ----- --- --I / // /' 4Qo /-EMBANKMEN- / — WALLS WI /E= MANAGED SLOPES, / PRESERVED SLOPES ca � /APPROVED WFO zo166o054 / ESC PHASES 1 & II LIMITS OF �° I / / / / / j /Q DISTURBANCE, TYP.' _ L /op NOTE: TOTAL LIMITS OF DISTURBANCE ASSOCIATED TH Q .WITH THIS DEVELOPMENT=5.79 ac. (3.92 ac. WERE / REVIOUSLY PERMITTED WITH WPO 2oi600054) to 'SCOTT R. LLINS Z No. 035791,'� 9/3/20 4C R SHALL INSTALL FINAL / 458 DES & FINAL RETAINING/ ROSION & SEDIMENT CONTROL C PHASE III, AS SHOWN. / / 0/ / / / / / PRESERVED STEEP _ / / / / , / / k6 / / / 6z / / / ��k\ / PHASES III & IV LIMITS OF 47g \ /DISTURBANCE, TOTAL AREA= ac. —SLOPES, TYP. \ \ \ z ac. PREVIOUSLY PERMITTED / / / / i / / ♦� / / l / / / / // / /' // \�\ CONTRACTOR HALL INSTALL A BERM, AS / / / / �♦ / / / / / / / / — / /SHOWN, ATTHETOP OFTHE FILL EMBANKMENT. BERM TO REDUCE THE RISK OF _ i / / ♦ + ROAD & LOT RUNOFF DURING CONSTRUCTION ' / I / / / \ ♦ / /FIL ING DOWN THE EMBAff MENT. � —'/ /I / / •4W4W/ \\\ \ . \\ \\ ♦� ♦ \ co r / cp / // / // / / / / / �� I 1 I I I / / / �w V I / ESC PHASE III S°B-3 v v / / // // / / / bo/ / / / / / / / / / / / ♦ I / I I I I I / V I / DA- 21 ac. ' � / / ♦ V A v / l l / / ' / / / � ♦ I I I l 1 I I II I II II\\ I/ ///' / / I ♦ V A \ / / // / o% / / / ♦ / / I \ F�1 CO / // / / / d/ / / / / / / / / / / IN ESC PHASE III, THE CO TRACTOR HALL INSTALL tFIE PROPOSED STORM SEWER RELOCATION. THE DROP \ \ \ / / / /' / / / ♦ !— \ \ \ \\ / / / P ° INLETS SHALL BE BOARDED UP TO PREVENT SEDIMENT \ \ � / ,� / / / / � \ \ O\i� \ \ W FROM ENTERING THE SYSTEM ALLOWING THE STORM 10 /// / / / / / / / / / / / / / / 1 �� ♦ \ \ \ SEWER TO,SERVE A A C EAN WATER BYPASS.\ \ / ° /' / ' / \ • I L /' / ��\ \ \ / / / / / / �/ / / / �♦ \ \ 1 I 1 1 I 1 \ / / /' /EROSION & SEDIMENT C TROL PHASES /// / ' / / 4�q ////////,' / r / / ' / ♦ ♦ v v I �� I I 1 v v v / / J ' III & IV LIMITS OF DISTURBANCE / ❑ , / * ♦ \ \ I I I \ / COINCIDES WITH PROPEV LINE � E C HAS III 5B- / / \ A A I A V A AV v PROPOSC�ONTRACTOR — A� / \ \ \ o // / / / / / / / / / / / / / / ♦I / DA= o.4i / /' \ \ I I 1 \ \ \ w" li q'O CRS PARKIN & STAGING AREA V / //// / / / / / / / / 1 I ♦♦ v V V A V A 1 w ♦ z / Av / // // // / / / m �••••AV A AV A \ V A\ V A\ V I\ MPSTER �v � o/ / / F \ o o \ \ \ \ \ \ \ \ \ \ TH FUELING ANK HALL BE COMPLETEL URI�O NDED BY A z' DEEP, / / // / / / / / / / I \ ♦ / \ \ \ \ \ 'WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING. THE PROPOSED BERM SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. // / / / , / /' / / / / ♦ J I I \ \ \ / v v v V A A A \� \ \ \\ A V A \ �W4LLED FUELIN� TANK CONTRACTOR SHALL ENSURE BERM VOLUME IS io% LARGER THAN THE v \ / \ \ \ \ \ *S K \ / / / J \ \ �j \ \ LOCATION OF PORTA-POTTIES MAXIMUM VOLUME OF STORED FUEL. CONTRACTOR MAY ELECT TO / I / / / / , PROPOSED STR. 446. CONTRA TOR SHALL DELA '� � � I \ 1 "/ / ' '� / /' / / / / \ \ \ \ \ \ � INSTALLING THE UPPER PORTION OF THE MH-i & ITS FRAME F m \ \ LOCATION OF RP�N AUGE i1TILIIZE AN OPEN TOP DUMPSTER IN LIEU OF THE EARTHEN BERM. \ \ \ °�/// j' // / /' / / /' /' /' ' / & COVER ALLOWING FOR THE MANHOLE'S 0 8" BASE TO \ \ \ \ I \ I , / / \ \ \ \ ♦ � SERVE AS A RISER. RISER RIM DURING CONSTRUCTION \ \ \ \ \ \ \ o/ / / / / \ \ \ /=474-50'. THE DOWNSTREAM 024" PIPES SHALL SERVE AS \ \ \ \ \ \ \ I ) \ I I /,�// //// / / / \ \ \ ♦' \THE BARREL �CONVEY THE CLEAN WATER. /i // / / / / 09 / / / / �/ SB1 ♦ \ \ \ ♦ '' \ \ \ 4$O \ � � \ \ \` \ \ \ \ 1z'x7o' MIN. \ ■ \ I I \ � � \ t� I Pl2 PO ED BAFFLES\ • r \ I \ l O / / A 473-' v v A V A \ \ \ A� \ �- CE ♦ I \ \ V r' rl co ///// / / / // �/�o// / / / � v v \ \ � \V A ♦ � � � 8_ 1�� v � V A \ \ \ \\ \ \ � ; V p l � \ T v v v O W A1 of 11/ LOCAT D N SID v \\ -- V ♦ \ \ \ \ v / /// �P '�� y / �� / v V A AV A A A THE FOOTPRINTS OF THE BUILDINGS FO v v V V A A N \ \\ V A V v / V I A V v I I LOT513z & 133, AS SHOWN. 460 v v 490 Z Lu /� —vV A\\\ \\\\\V A A\ \\ \V A v v vv 4 \ \ `♦v\ vv V A \��° \ A v\ v vvvv\v l A I V v / I � / l 45� v v♦ v �� vvvv vvv v � / b / a � vvv, vvvv vvv v vv I vvvvv vv,v °° '//',---- v `vvv v v `v v v — v ♦ vv ` vv ` vv vvv, v v vvvv — v 4w / Q cc \ \ \ ♦ \ \ \ \ \ \ \ \� / / r O \ \ \ \ ---- �0�a6062060tS00bb00d \\\ \�\\ \\\\ \ \ \ \\ + / \ \ \ \ \♦♦ \\ \ \ \ \\♦♦ CONTRACTOR ONTRACTOR VSHAALAL 'oNAAV_A \' \ VV AA \ \ \ v,A. —/ / +// / /T/ / / \ A \v VvA v vv \ A4 y4 V \ ♦\ \\ A \ A A \A \\V\\ \ \ \ \ \\ A A\ V \ \ V\ \AV v \ Av A vAvA\ A \v\` ----_ ------- ——vV vvvv vv vvv\�v\A v\V\ \A VV\\Av\ \ V \A A\ V ♦ / /A / e %_ U — -EMBANKMENT GRADES & FINAL RETAININGA ASTALL FINAL a O WALLS WITH ESC PHASE III, ASSHOWN. 430 � d A ♦ \ \V _—q Lu Z_ ESC HASE I\VA QA V Z V v v A \ v v v v v Lr- �\ V A V A \ + \ 1 — v cP V A V A A V A rP \ ( \ \ 8 I I / 4 \ a vvvv pvv vvvVvvV A v / v ♦A v v A I \:V l / A CO V A // v♦404, \ �\ 1 �\v��,/ /ii � i''i i i/ �'�' ■ / // i ��� A r` \ F — 1 +♦ \ER Y lD CONTRACTOR SHALL INSTALL A BERNf, / / / O \ \ \ \\ \ \ \ SHOWN, AT THE TOP OF THE FILL / / / / l� W w / \ \ \ \ \ \ �\ \\ \ \ \ \\\ \ \ / / / /DO / q \ 2 I / / / \ EMBANKMENT. BERM TO REDUCE THE RISK OF / , / / F— O j - -� \ \ .�\ \ \�\ \ \ \\ \ / \ / \ \ 'ROAD &LOT RUNOFF DURING CONSTRUCTION / , o/ / / \. \ \ \ \ / / — \ / / / LOWING DOWN THE EM AN E / / Ob A JALn Lu 41 uPLu \\\\ o \%\/ / / \ -- \ / / N . \\ \\ \ \ \ _ / ♦ fit\ _@- — I I APPROVED APO zo-600054 / G m \ W O SCPHASES I&II LIMITS OF / Z ISTURBANCE TYP. `� \ Q \ vv v� v—�' ----�— �/ I I �,l / / l 1 1 I 1 1 .� m IIII 1 _■� (� __IIII to �-- \\\\\\\ �---' �— -- ---- 1 I I I al l / l I I I I 1 I / / � �/ � I / r o I O / l \\ — 1 /1�II1I(;III lI /f I I Y / / I \ / ■ O N F yv , l l l l/ q I I I I I �I I V ■ I m C�/ I I 1 / / I I V ■ w o Q I II I II I I I I IP0I I MANAGDS EE ■�/ ■ 1/1/ •♦/ I ■■ / u c / w ♦ wNUNDATION ZONE TYSLOPES TYP. ■ _— i -- 0- Ln —3& / v v V — (\ 111 I �I I I I I I I 1 1 1 1 1 1 1 //♦1 II 1 A\ - \ � \ A A- \- \\ \V\ A A .\ IVA � V I I II - I SI I III i I �/ ■// JOB NO. �ROPOSEb SW VI FOREST 122071 G�PHIC SCALE ct' &OPEN SPACE ESMT,TYP. I / ■ I 30A -�V 0 15 - 30 \.A, 60. A .120. -\V - VA� A'\(I\VA VA A\ OA I I I I I I I I I I I I I I I I I I SF x�" / ♦ ■ I SCALE v- v V A A V Aa I I t 1 A\�0\VA A V A A V I IIII j I I I I I I II ♦ ■■ I a I 1— 30 v v _� Ip I�.- IN .FEET \ \ } - yi \ _. �' I SH�F�'f�0. \ 1 inch =. ao .ft. \\ \\\ \ I\ I I I I I I P I 11 I I I \ I I I I I 1 I I I \ CIO a�a0006060-V6CTOt5000 /---- --_— ----- ---,—/ /E= MANAGED SLOPES, PRESERVED SLOPES /APPROVED WPO 2'o1600054 / ESC PHASES I & II LIMITS OF O I / / / / , j /� DISTURBANCE, TYP.' _ L is Q -',NOTE: TOTAL LIMITS OF DISTURBANCE ASSOCIATED /WITH THIS DEVELOPMENT=5.79 ac. (3.92 ac. WERE REVIOUSLY PERMITTED WITH WPO 201600054) SCOTT R. LLINS'Z 460, /' / /' /' U Lic. No. 035791 �/ �/ / j// 9/3/20 �C 458 / / ✓✓✓ _ I— °t� ti ROSION & SEDIMENT CONTROL / / / v / v �SIONAL �O PRESERVED STEEP PHASES III & IV LIMITS OF SLOPES TYP. DISTURBANCE, TOTAL AREA= ac. IP (3.92 ac. PREVIOUSLY PERMITTED) P o / / \ _ 1n x/ v v 0 / cop 6aj/l / / / / / / / // — I I I II I II I II I I I/ / // // / A\ vv V) co d TS \ \ I 1 \ \ / /' // \ \'P1 \ W o ce q%\�\ EROSIOv& SEDIMENTONTROL PHASES v — / / I I `1 \ \ / t; COINCIDES WIOF TH DISTURBANCE LINE O J� \ /Oj/ r/// /// / / ' / \\ \ \ t 1 1 1 \ \ \ / �4� / III&ICIDES WITH a / a. A I I v / / _ �� / \ PROPOSCD�ONTRACTOR \ I \ \ v� A V V I f. I A \ i / PARKIN & STAGING AREAv� —� A / ION OF D MPSTER0-0 //�V A / z/ / / / / i o — v \' \ \ \ I l THEE FUELING TANK HALL BE COMPLETEL URI�OUNDED BY A z' DEEP \ I o <\�\ \\ \ \ //' z' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING. THE �� A A \ LOCATI�N 0 DOUBLE PROPOSED BERM SHALL CONTAIN FUEL IN THE EVENT OF A SPILL. // / / / / / / / / 1 \ \ `6 — / — ` \ s \ \ \ � \ W4LL� FUELIN,�j TANK CONTRACTOR SHALL ENSURE BERM VOLUME IS io°h LARGER THAN THE / \ PY // /Q / / / / / / J \ \ \ / \ \ \ /L CATION OF PORTA-POTTIES MAXIMUM VOLUME OF STORED FUEL. CONTRACTOR MAY ELECT TO I Q/ \ �\ — r \ \ \ \ `� \ LOCATION OF RAIN AUGE —UTILIZE AN OPEN TOP DUMPSTER IN LIEU OF THE EARTHEN BERM. c' ' \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1 \ \48� 7 up cy) o/ / / /— — v� \ \ V / vv v v vv v\ 8 \ v \ \ \ v CE \ j --� v `v vv vv c j 8Lu �I N �� /�—lv V A V A A vvv A / v V V A A \ V AVA \ v / rca A A _ v / N O l \ \ \ \ \\ \ \ 460 \ P 90 \ \ \ \ N \ _ \ , O z L > < O 1 L z o \ / / \ O \ \ \ \ / \ \ \ 48 j----- �(� U � v o-- — v v \ y v s sv k v — .� / / /— V V ✓� \ �_ o v v v k V A V A A — v \ oLu a -IUJ — / V A qo\ �,/^)Lu 7 or I / / o o�ob NF\�ll �� ���� �.' \. A A \ F — �x v 4oq v AA \\\\V AV A \ \ \ I �I � \ /////'�%'/// ///// / // I ��AL`�� � Z `O ,�' I I 1 I I / /i , -/ / c�Q y v� Y to 0 \.' . . �. \ \ \ \ \\\p \ \ / .r. � . .��� � � �� ' � ��.y. Vv v v VA � /'/ � // cgs/ V � � 2 I / / / �1vI \ \\ � % / � / // /�/ //l5� � \ � � Cn yam.___—�� :��. �- �� ��vvv v vvovVAAA� / �� - '� /// / / // // / W v vvv vvAv/ / �t� / v--- v �I / // / / � �, W W --��_— �.�.y� .y�V v vv�a0w/ / / / / _ �a� ----- A I / / / v// / .p cP /ct VA G A v v �`v O / /off.i. .—asp.. ®-- C°�— `� a // / ?D m H \... APPROVED WPO 201600054 / 1 W \ . \ . \ \ .\ \\ — — �. .—. — �) / / / / / / / / / / / / — SC PHASES I & II LIMITS OF / �L� �. ' .�. ' \ — — o / / — — \ ISTURBANCE TYP. \ / / / I la I / 1 / //'�— \.\. I I =�- \� ��\'\', \ti ' � \ -- ---- — --�.l' .11o I I 1 l of l/ 11 1 1 1 l l I I I I I/ I I I I � / // \/ / �— III / -- i I r. .'. T N l.f. \. I I I I 1 1 I v. v I I I I I I 1 \ .\ \. \ I I STATE DAM BREAK P I I / / u + I _ o W F — — ZONE, E, TY S ----- _ ^p w I. . ' \. ' . I MANAGED S EE \ �. . \.. . \. \. \. \' ./ . / I I I k> IINUNDATION O P. I I I / / \. . . ' \ / ./ ini I LOPES, TYP. \ \ �. \ \ `C I I I I I I I I I I I I I I l II I/ / a Ln \ \\ 1V. '- - ----__- h y 1 / / I I I JOB No . L 122071 ROPOSED SWM FOREST G1�PHIC�SGAIE.& OPEN SPACE ESMT, TYP. SCALE I ISF. ...... . . . . . � .. . '30\diS30A60.120...A1=30' �V ___ Yn.FEEm.). 1.inch.-.30 ft. V .' .' y.\.A\.A�VA\ V A V A A AMENDED SEDIMEN BASIN #3 (PHASE III) / PROPOSED STIR 446 CONTRACTOR _CP�/ / QELAY INSTALLING TH UPPER PO 10 OFTHE \ / N M & ITS FRAME & COVER, ALLOWING FOR THE MANHOLE'S O48" BASE TO SERVE AS A RISER\ RISER RIMDLRING CONSTRUCTION=47430'. \ ' POSED BAFFLES / THE DOWNSTREAM 024" PIPES SHALL SERVE AS THE BARREL & CONVEY THE CLEAN WATER. \ / 473 -478 Sediment Basin 93 (PHASE III) Design drainage area (acres) 3.21 basin volumes: (using 2' contour intervals) elevation (ft) contour area (sf) volume (cy) 468.00 988.0 0 470.00 1301.0 84.5 472.00 1643.0 193.3 473.00 3540.0 287.1 474.00 4009.0 426.8 476.00 5022.0 760.5 478.00 6134.0 1173.0 wet storage: wet storage required (cy) (67*DA) 215.1 dewatering orifice elevation (ft) 472.23 wet storage provided at this elevation (cy) 215.1 available volume before cleanout (cy) (34*DA) 109.1 cleanout elevation (ft) 470.42 distance from cleanout to orifice (ft) (> T) 1.8 dry storage: dry storage required (cy) (67*DA) 215.1 principle spillway crest (ft) 474.50 dry storage provided at this elevation (cy) 295.1 diameter of dewatering orifice (in) 8.0 diameter of flexible tubing (in) (orifice+2") 10.0 runoff: C (use 0.45 for bare earth) 0.45 tc (min) 10 12yr 4.10 Q 2yr 5.92 1 25yr 6.00 Q 25yr 9.53 principle spillway available head (ft) 1.00 diameter riser (in) 48 spillway capacity, Qp (cfs) 9.53 diameter trash rack (in) 72 barrel length (ft) 86.12 head on barrel through embankment (ft) 3.97 diameter of barrel (in) 24 MIN. i' WI SPILLWAY 2' WITHOUT CREST OF EMERGENC/ SPILLWAY DESIGN HIGH WATER (25-YR STORM ELEV) os ------- ------- RISER CREST DW ' STORAGE - DEWATEPoNG DIDACE WET STORAGE SMI'm CLEAHUID POIM (• SET♦ CSTORMDERREDUCED TO design high water (ft) 475.50 top of dam (ft) 478.00 top width of dam (ft) 10.0 bottom of basin (ft) 468.0 approx bottom dimensions: 28'x42' upstream face slope: 2:1 downstream face slope: 2:1 baffles: YES length of flow, L (ft) 25 effective width, We (ft) 170 L I We (baffles not required if > 2) 0.1 collars: YES depth of water at spillway crest (ft) 6.50 slope of upstream face (Z 1) 2:1 slope of barrel (Sb) 0.0453 % length of barrel in saturated zone (Ls) 39.07 number collars required 2 dimension of collars 4.0' x4.0' emergency spillway: NO required capacity (CJ25-Qp) (cfs) 0.00 bottom width (ft) WA slope of exist channel (fUft) WA % minimun length of exit channel (ft) WA crest of spillway (ft) WA Sediment Basin #1 Sediment Basin #2 Sediment Basin #3 Area, ac. Area, ac. Area, ac. Erosion & Sediment Control Phase 1 0.68 4.34 Erosion & Sediment Control Phase II 2.79 2.22 - Erosion & Sediment Control Phase 111 0.41 0.67 3.21 1 SEDIMENT BASIN BAFFLE DETAIL NO SCALE SHEETS OF 4'x8'x§' EXTERIOR PLYWOOD OR EQUIVALENT I I I I I I RISER CREST ELEVATION I I I I I I I 11 4' I I I I I I I POSTS MIN. SIZE 4" SQUARE OR I I I I 5' ROUND. SET AT LEAST 3' INTO 8 THEGROUND 1. SET POSTS AND EXCAVATE A 4'X4" 2. STAPLE WIRE FENCING TO THE POSTS. 3. ATTACH THE FILTER FABRIC TO 4. BACKFILL AND COMPACT THE TRENCH UPSLOPE ALONG THE LINE THE WRE FENCE AND EXTEND EXCAVATED SOIL. OF POSTS. IT INTO THE TRENCH. I L 1= r � -IIII r �r-IIIIII� �/ �l IIIIIIIII -IIII ��I 1=1 FLOW 1= (- FLOW 11III=III- -III- - IIII III- SlL T FENCE EXTENSION OF FABRIC AND HIRE INTO THE TRENCH. sF (WITH WIRE SUPPORT) NOSCALE Sediment Basin #1 Design drainage area (acres) 2.86 basin volumes: (using 2 contour intervals) elevation (ft) contour area (so volume (cy) 418.00 740.0 0 420.00 1568.0 83.6 422.00 2590.0 236.0 424.00 3747.0 469.4 426.00 5205.0 799.5 wet storage: wet storage required (cy)(67*DA) 191.6 dewatering orifice elevation (ft) 421.42 wet storage provided at this elevation (cy) 191.6 available volurne before cleanout (cy) (34*DA) 97.2 cleanout elevation (ft) 420.16 distance from cleanout to orifice (ft) (> 1') 1.3 dry storage: dry storage required (cy) (67*DA) 191.6 principle spillway crest (ft) 423.50 dry storage provided at this elevation (cy) 219.4 diameter of dewatering orifice (in) 4.0 diameter of flexible tubing (in) (orifice+2") 6.0 runoff: C (use 0.45 for bare earth) 0.45 tc (min) 13 1 2yr 3.70 Q 2yr 4.76 1 25yr 6.20 Q 25yr 7.98 Principle spillway: available head (ft) 2.50 diameter riser (in) 30 spillway capacity, Qp (cfs) 4.76 diameter trash rack (in) 42 barrel length (ft) 68 head on barrel through embankment (ft) 9.01 diameter of barrel (in) 15 Sediment Basin #2 (PHASE 1) Design drainage area (acres) 4.34 basin volumes: (using 2' contour intervals) elevation (ft) contour area (so volume (cy) 404.00 3073.0 0 406.00 4103.0 264.9 408.00 5251.0 610.4 410.00 6508.0 1045.1 wet storage: wet storage required (cy) (67*DA) dewatering orifice elevation (ft) wet storage provided at this elevation (cy) available volume before cleanout (cy) (34*DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> 1') dry storage: dry storage required (cy) (67*DA) principle spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) to (min) 12yr 4.00 Q 2yr 125yr 6.60 Q 25yr principle spillway: available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 290.8 406.15 290.8 147.6 405.10 1.05 290.8 407.90 301.9 4.0 6.0 0.35 11.5 6.08 10.03 2.10 30 6.08 42 48 5.76 15 Sediment Basin #2 (PHASE II) Design drainage area (acres) 2.12 basin volumes: (using 2' contour intervals) elevation (ft) contour area (so volume (cy) 404.00 1140.0 0 406.00 1985.0 114.3 408.00 2942.0 295.6 410.00 3999.0 551.7 wet storage required (cy) (67*DA) dewatering orifice elevation (ft) wet storage provided at this elevation (cy) available Volume before cleanout (cy) (34*DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> V) dry storage: dry storage required (cy) (67*DA) principle spillay crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) tc (min) 12yr 4.30 Q 2yr 125yr 7.00 Q 25yr Principle spilMay: available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 142.0 406.31 142.0 72.1 405.24 1.1 142.0 407.90 144.8 4.0 6.0 0.4 9.5 3.65 5.94 2.10 30 3.65 42 48 5.76 15 MIN.1-WISPILOMY Y WITHOUT CREST OF EMERGENCY SPILLWAY DESIGN HIGH WATER -(25-YR. STORM O"E ) S' To ------- ------ .: PoSFR CREST ' DRE' STORGE DEWATERING OE410E ' WET * STORAGE SDIIMEM CLEANOLT POIM (• " REIXICED iWET 0 CSO%A3EX design high water (ft) 424.50 top of dam (ft) 426.00 top width of dam (ft) 10.0 bottom of basin (ft) 418.0 approx bottom dimensions: 19'x74' upstream face slope: 2:1 downstream face slope: 3:1 baffles: NO length of flow, L (ft) 90 effective width, We (ft) 38 L / We (baffles not required if > 2) 2.4 collars: YES depth of water at spillway crest (ft) 5.50 slope of upstream face (Z 1) 2:1 slope of barrel (Sb) 0.75 % length of barrel in saturated zone (Ls) 34.02 number collars required 2 dimension of collars 3.7' x 3.7' emergency spillway: YES required capacity (Q25-Op) (cfs) 3.22 bottom width (ft) 25 slope of exist channel (fUft) 15.0 % minimun length of exit channel (ft) 10 crest of spillway (ft) 424.50 MIN. 1'WISPILLWAY 2'WITHOUT CREST OF EMERGENCI' SPILLWAY DESIGN HIGH WATER (25-YR. STORM E .) o s• wN. Lo• ------- -------- RISER CREST DRY, STORAGE '.'. DEYIATERIND DEVICE WET' STORAGE SMMENT CLEANOUT POINT (• ' REDUCED CSTORACCEE TO design high water (ft) 408.90 top of dam (ft) 410.00 top width of dam (ft) 10.0 bottom of basin (ft) 404.0 approx. bottom dimensions: 38'x95' upstream face slope: 2:1 downstream face slope: 3:1 baffles: YES length of flow, L (ft) 67 effective width, We (ft) 77 L I We (baffles not required if > 2) 0.9 collars: YES depth of water at spillway crest (ft) 3.90 slope of upstream face (Z 1) 2:1 slope of barrel (Sb) 0.75 % length of barrel in saturated zone (Ls) 24.12 number collars required 2 dimension of collars 3.2' x 3.2' emergency spillway: YES required capacity (Q25-Qp) (cfs) 3.95 bottom width (ft) 25 slope of exist channel (fI 15.0 % minimun length of exit channel (ft) 10 crest of spillway (ft) 408.90 MN.I WI SPILLWAY 2WITHOUT CREST OF EMERGENCY SPILLWAY DESIGN HIGH WATER '(25-YR. STORM ELEY.) wN. 10 �. RISER CREST DRY ' STORAGE :.' :.': ": DEWATEPoNG De.TLE WET ' STORAGE .... SEOIMDNT CLEANOUT POINT WET STORGEq EDUCED TO design high water (ft) 408.90 top of dam (ft) 410.00 top width of dam (ft) 10.0 bottom of basin (ft) 404.0 approx bottom dimensions: 21'xE9' upstream face slope: 2:1 downstream face slope: 3.1 baffles: YES length of flow, L (ft) 54 effective width, We (ft) 56 L / We (baffles not required if > 2) 1.0 collars: YES depth of water at spillway crest (ft) 3.90 slope of upstream face (Z 1) 2:1 slope of barrel (Sb) 0.75 % length of barrel in saturated zone (Ls) 24.12 number collars required 2 dimension of collars 3.2' x 3.2' emergency spillwav: YES required capacity (Q25-Qp) (cfs) 2.29 bottom width (ft) 25 slope of exist channel (fUft) 15.0 % minimun length of exit channel (ft) 10 crest of spilWay (ft) 408.90 APPI410VED SEDIMENT BASIN #1 C� 4/ /APPROVED 30" CL. III RCP STANDPIPE W/ TRASHRACK SHALLSERVE AS THE RISER STRUCTURE. RISER RIM ELEV.=423.50' cl/ / Q / If AMENDED 4o' WIDE VDOT CL. I RIPRAP CREST ELEV.=424.50' C Ca / /q / lc4// �, / / /' \ % VAj� V A V A\ \\ Do /Q o Ln \ii\\\ APPROVED iS"CL. III RCP BARREL \ V A A 42 W/ VDOT STD. EW-1 \V A A A (68 LF, INV. IN=416', INV. OUT=415-49') \ \ \ \ \ J�7 \ }g0O0 \ � -' / i'APPROVED VDOT #3 COARSE AGGREGATE OUTLET \ \ \ - - - -' / PROTECTION W/ GEOTEXTILE FILTER FABRIC \ \ \ \ \ O' -UNDERLAYMENT(L=io',W', D=2'MIN.)� a-° - _ - - - N 00 o APPROVED SEDIMENT \ �ASIN#2 (PHASE 1) 0 \\ 404 / \ APPROVED BAFFLE v \ \ + 6-0000- 0 S 404 A A 4 / \ \ 00000 + �, 06) APPROVED 30" CL. III RCP STANDPIPE W/ 'TRASHRACK SHALLSERVE AS THE RISER_ STRUCTURE. RISER RIM ELEV.=407.90' APPROVED 15" CL. III RCP BARREL_ W/ VDOT STD. EW-1 - (48 LF, INV. IN=403.50', INV. OUT=403.14') + \ \ \ \ AMENDED 2 ' WIDE VDOT CL IF AP q \ CREST ELEV.=4o8.90' APPROVED VDOT #3 COARSE AGGREGATE OUTLET a ) \I PROTECTION W/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT (L=12', W=6', D=2' MIN.)\ )�a --_-�----'//�/ n o i \APPROVED SEDIMENT- ASIN #2 (PHASE 11)Y q24 �42 4.16 \ 422 v 420 \ \\ \ k3 \ Q06 APPROVED BAFFLE 04 �P 000000�0� �a + 404 \000 \ 4o6 89, 0,9 APPROVED 30" CL. III RCP STANDPIPE W/ _ -TRASHRACKSHALLSERVEASTHE RISER _ STRUCTURE. RISER RIM ELEV. 407.90' ' APPROVED 15' CL. III RCP BARREL- W/ VDOT STD. Ev. - (48 LF, INV. IN=403.50', INV. OUT=403.14') + ) \ \ AMENDED 2 ' WIDE VD T CL. I IPRAP 1 - I A�N32 CREST ELEV.=4o8.9o' \S APPROVED VDOT #3 COARSE AGGREGATE OUTLET a ) - _ PROTECTION W/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT (L=12', W=6', D=2' MIN.)\ a ) SCOTT R.4 LLINS' Lic. No. 035791 a A 9/3/20 4�j 0 C T_1 co M N ® M z d' LU N Q J z W a N LU LU > Q IU 0-6 LU J Q J ® w � O Q cr-11 J I- `r i Q U > U r ' Z Y lO Lu LJJ L L] 0 LU Ul j Q � ~ = z Z 0-6 w 0 Q � O w W Q C:)Lu w J U I w w a- J) JOB NO. 122071 SCALE 111 = 201 SHEET NO. 8 rKC-UCVCLUYI°ICIV I JA.CINHKIV JL /TLC Ur 1 -=ou ----'' - ,DAA&BExistin Im erviousAreas WaterQuanti // / / --'--- ---' / Total Pre -Development Impervious WaterQualit g p ( tY) i/ / / / /, / / / / r _--' I ' P P ( Y) Existing Residences 5 350 sf /// / / / / ' / --- /-,' /"'// / / / /' ' ' _- �� / �/ //'_ / (Limits Defined by the ESC Limits of Disturbance) Existing Driveway to TMP 32G-01-28 1,300 sf iii i I //' / // /' I /' l / / / i I / / �, -- _ '/' _� _ _ _ _ _ ,/ // Existing Driveway to TMP 32G-01-28 1,300 sf Existing Roads 6,600 sf ///'/ '/' ' //// / // j- _- %%'y;= -----/ -_ ;/ Existing Roads 6,600 sf Existing Sidewalk 100 sf / ///, / , / / ' / / / ( / , / / _ - -" - g / /, / / / / / ,+' / / . I � 7 j � � " j / -- / , r,' _ Existing Sidewalk 100 sf 13,350 sf / /' / I > / r � § ) I / /> / / / j / / _ _ _ 8,000 sf , I I , /- -'' 0:;0 ���"_' // / / . --%9' .OLF'w kE ,' / � l I r / / /' /' / I I / / / '�� //" �' 'F �OA7 s a! /' /' / l // i / ' / / /' Ir>< \- I _I_ I I I \ I I ' �/ I" / /', N / 7 / /' �' / / / / 7 / ' / A / / / I 1 1 1 I / I I / // ' , �13Cy 09 Cyr A ELEvG= fJ'� -, / 1 / I l ! / / / , / ♦ I 1 I / I / 1 / /i/,ice / / - / ' Y / �W / / /, , / / / / I / , / V V 1 I I / /i/ice, / / // / /'/ice «�,.%--' / / l vA A / l lI/ / l l 1 I�/ ///// / / / ;, �,, .y� /� /_, / , / / ///// // /, ////////// ' _Hj , , , , - ,' ( 1 % l-t-F \1 / I/ ,' / / / l - \ \ / / I I 4 I / f ® //%//// //�l// // /// /' / /j /i,�' �' I I\ I I I AIVAAAA\ >/I/ /i//i �� // // I �� , vv \v V ■ / 1 ,-I I ,! / l /,//// �//// // // / '/ /' - 1_- - -\ 11111\ \\\ . / / -/ _/ \ \ \ F --�I I r �j//%//// / / / /' / // /'� �i, \^\ \ 1 1 I I \\IIII \ / //y' L \ IIIII 11 1 11 II ////// elll / / / / / //�/� �(I , / / � � � ; Tc- 0.12 hits. \ \ I I / / / � \ - I 1 I ■ I I I Ir //ii// /////// / / / ! / I I-_/__F 100�EV=I 11 1 I I I , / / �� / \ \ 1 I I ■ I I ii// / i i / j / / I l \ 1\ j ,/ T yhrs�� &\ \ \ \\ 1 \ 1\ h ` 1\ \ \ I J r _ - m��O // b ( SIT \ \\ \, 1� 1 - : T I 1 11 1 1 - C9 y'`/ / , \ / \ / '///////aii / / / / 1 J-. 1 1 \ \ -1- , 35(Y'OF CF w \ .� ty \'\ \ \ \ \ \ \ \\ \/^ ? I ac. \ \ \ \ // ■ I I 2////// / / / / / J f. � 6(�7PNOF ,"� ,V A A A1`1 < 1 1 1 I I ` ■ I_ -,/r// i///' t Q$ /' �,�T-c-0.Q1hr`s� y>< V A V A v v V A 3i \v vv v - 8 ' I v ■ t, A l i////✓°/"/ ' , / \; \ p\RQP ED SWIM /'_y, ", \ \\\� \\\\q$`e\\\\\ \ \ \ Jet .� I I 1-c=o.24 II '�i\ 1 1\\ �'C� 1 ■ k L / / \ / - , A A v ///�`v/% '% / �,\ \ \\ \FACILVTI�'\A' 1 / ,' - _ \ \ \\ \ \\\\\� ,\\\ , \\\\\ \\ \ \\ J 1 �I� \ 11 I k� \\ I ♦ 1 r �' / /a"i // ,.. v A V A V A 1 /� - `v/' `\ A v v A v 9�V A AA V v V V r �+ V 1 /,// /r.� %!\\\\\\\\\1/'/f/_--Y\\\\\\\%��\���\ \\\ \ : I \ \V \\\ ♦ II, I ✓/////.� ,_ ♦♦♦\\ \\\\\\\\ \�/ ,/,//s"�-' \P\ \%: AA\4 B\!�\\\\\\\�\\\\\\ \ \\ \ /Ii` ��\ --- \ ,\ \ \ ♦ II1� 11 / ' �'> /� "��� _ v v A A A 1 A V / / / / /- �v vv v4.'/Q a V A A VAA\A V A A \ V \ V A A � v \ \ / 1 vv v I v,, \\� ♦ A \ 1 6 / / I I.., - � v v V A A V A \ 1 / //'/ /-i� `v vCN-3 zv v A A V A VA V v A\\ V v 7 \ - �, \ \ & \ \ \ ' / / /'7 / ' -L \\ `T\C�.1 hxs., \ \ \ I \ \ \ \ \ \ \ \ I I 1 \ \ \\I i I 11 \ \ ♦ \ \ \ \\ \ \ \ \ \ 4-- / / / / \ \ \ \ \1 \ (l \ \ \ 1 \ \ I \ _ / I f` I \ I \ ♦ \ \ \ \\\I\�E/�I i�' '/-\\\�\\\ \�\\\ I '////'g//// j\ `\\\\\ \\I \\\\\�\\\\\��\l ' \\1 \ \ 'H I■ \ _ ^\ I \ / l 1 I ♦ \\\ 1 \ \ \ ' \ 1 \ \ \ 1 / \ \ \ / / \ \ \ \ \ / / \ \ d \ \ \ \ \ T - MIN. 0.16 hrs. ♦ �0g - ! _� ` \\ \ ` \ \ \ \ \-►/ / ' / / / -I ` \ ` \ ` \ \ \ \ � \ \ \\ \ \� I \ 1 T♦ �y / j / ion' OF OLF w A ELEV.=6' Tc=0.14 hrs. & ♦ \ I °�a°�f_o,o4y$ona-b\{\\`\\\\\\\ \\\ 114- //,/ / I /'-/, /\\ \\ \\\\\\\\\\\`\\\\\\\\\\\\�\\ ���- -�\\�\ l / / ( ) ♦ \ \\ \ NATURAL t \\`,Oa,\\`, , \\\\ 1 //////'�'� ///i\ \ \ \ \ `LgcA.T�0\dF, \\�\\\�\\\ \\\ ��0�1" rS.�\\ ��\\ \\ 260' OF CF w/ A ELEV.=19' (Tc=0.02 hrs.) ♦ \i \\\na\\\\ \� \\\ 1 , / //'/ /I / 'j\ \ `\ \\ \PRQPQSF\P %A/1\\\\\\ \\ I%D \\p)\mob -w � \�\ ,\ \/y/ /, \Ib / �\ ♦v \ \\ LOW O ,.,b \\\\ \ \ \\\,\� \'\\ \ �r / / / / / /, \ \\ \ \-FACKHA-tkk, `\\\`\ \ ` \ ` \ -EAOh rs \&� \\ \ /' \ \ o �__� h \ \ \ / // \ \\ \\\ \\ \ G \\\ ��\\`\\` Ym\\\\"`\ ` '�r /F116,104 / /' 1\\ \ ` \_,__; \\ ,\, \\\` \3 Q\\0 /C'F�w���ELEN, ' \I \ \\\ I \ \ \ \ ■ ---:�vvvvvv v VAAAV A // // W,i v ` ___ v`��vvvv\vvAVAA VA V ICT�-0.01hr�. ,` 1111111111 „/ V/ A A AA\ ■ \ v /, _ `I�� ��v, vy l���vA v �/;�// - i/ i'��# v , v,y vv`Vv`\\vAVAVAI II d\ \ / 1�i%Ii�� ' ■ / 's E _ "�,����vv, vvAAA\ - i /i/'/ ,�' v,.v _ �� �y'% / / ly lrV 1 I11 I III A 1 /j/irij 4'i/ / r y, avvw�\VAAA� �i /,/ �,rr \� av I l / / //'////////�T I l llpV AA A � %/%/%%/ /� / / // �V�P�� / / 1 \ V A\ \V ■ \ v , ��-"L.�y��voAVAA `i / , /,.�'-t . , a� ^/ I I I ! / // / ///r /�ivI I11A /j////,/ //' V J v v vy wwIQ //�//''�v� 111//////iAi�r1A A 111111 I111 �/i l ��/ /� ,I ,/' V vvvv vvI �A- / /,_I _ .�I / / // // ,/> / J A v \vy ` p v 4 , '/ �/ _ -/ I I*0 / / / // / /, -- r �_--'iA/ 1VIVA A \ ROPOSED ESC LIMITS OF DISTURBANCE BOUNDARY / _ _l /---__�yy, yvv,°�'ii i�i'�NATUR�I---/I^61A� 11 ��/ ///'i//�'i%� '� ��AVAVIAAV , �' 13 DEFINES THE VRRM WATER QUALITY BOUNDARY. : ' vA vA/// _..�_ I I / �� / // " p\VAA\ V v / /- - v. v A / - / v vvv v v / y I I d / // / / /- - -' - Y \ / I TOTAL ESC LIMITS OF DISTURBANCE AREA= ac. ` v'vvvgib vvvvv,/, o �� �W-_:� 1 1( 711/l // ///l �� / //-,'; ;'-' v _\VA �1 I / ♦ / 579 / v v / y y v vvvv i p. I / l T l// v VAAAA �v�_�® <w 1 I / 11111 //ill/f///�/� '- - - 1AAA\I ♦ // Ln 1 \ I A� �' / , v .P I��J/l/l,/ l//l 1 // l l'I' ,/-/-- - AAAA\1 A , CI ' \ S IIII ll//lull/ / I /"I/, 1111 '(!� /, / --IIII11 �f- Z \� ��� 1 / / / ! III j III I �# , - III 1 ,'■ , / (' ♦ /' , I-.-, -. Zoo - YEAR ''o ': 1I l I i l l 1111111111 IIII 11111 1 1 I / W# '/'- 11 1 1 ■ 1 1 / // ♦IM I / A -, FLOODPLAIN ®.. o: I I I I I 1 I I l l I I I, /� / I V A I / �* (TYP.) J, "i1 1 111 III IIII Y�}�,^ I I */, L I V 1 ■ < I 051(�5♦ V A / / \ I{ �//'p1110 I I III 1j111111I II1111j111111111 I1ll f" NA GID STEP/�� \ \ 1 L 1 \ - \��(\ / \,\�\I11j11I�1111,IIi11111I1j1illllll11111ij 111 UCFE5(TYP.)( /, \ -/ ,I \� \\---- \ \ i /i �\ PRESERVED STEEP - ,®\ o I11 1 1 I I / ` '� ■ � / ' \ \ \ \ { v SLOPES (TYPJ o I / / OF I I �I A\� , v- - >. A \F�'VA `VII P I T I 1 I I I ■ 1 I I �I I v '`_ I /-v MANAGED SLOPES vv ''v AVAA\VA \\ \ I I II I 11 I I V A\ 1V A 11 11 - - �I♦-- /' % 1 v\ it PRESERVED SLOPES V --_ AVl�' A. AAAAVA AVAAA- A \VAAAVAAVAVAA1 V 1 ,� 111 AV A\ 1 II 1 I\ I\ \V A\ \\ \\ - I I I I - I I III / - f I 1 1 �`� . / V - - \A.A A AAI V A V l \ V I I 1 I I WATERSHED SUMMARY (For Onsite Areas Only & the Energy Balance Computations) Pre -Development 0 Post -Development Area, 1-year 2-year 10-year Area, 1-year 2-year 10-year CN CN ac. Flow, cfs Flow, cfs Flow, cfs ac. Flow, cfs Flow, cfs Flow, cfs 72.7 3.86 0.10 0.18 11.53 EDAA:&:B::::: 59.0 4.70 1.21 2.99 9.93 62.1 0.84 0.10 0.12 0.17 70.8 4.70 0.20 0.30 11.70 WATERSHED SUMMARY (For Basin Capacity / 100-year Freeboard Check only) Area, 100-year Backwater Freeboard During CN ac. Elev., ft 100-yr Design Storm 72.7 3.86 Post-Dev. DA A + DA C 424.97 1.03' 78.8 4.76 76.1 8.62 SWM FOREST & OPEN SPACE EASEMENT (SCALE OF 1"=80') I. \\\\'\\ \-% �-- ��-'_-�\ \\, \ \ \ , \ as° \\, , X\\' \� \.. � I. --, 1111\n�\`,,�\' \\tea° �--- \\ \\\\ \\\ \ \\ �\ \\\` .y \° _ III \�`` \\ = -s °�,. eoaos can-\ \ \\\ \ \ }'\\\�. Y \\,lam/\%\ ti \_/ -\ 7. �a o - x \ - s o _ \ x �\ t d \ \\ \ \ ^<�\\� �� - \ \ \ \ 2 (\' I - \\�_..-7-i/-�.1�\\\fib\\\\\\\\\\ \\\ // \ .a,\ �>,r.\<,\\X \�'-__=k�.,�iri. ---^ \ \ \°ixa \\ \ \\f v, \ \\ /I'' ­/` � �.. "��-t s��\0\ \\ ` \\ \� \ ,\, // °sue - \\� � __ ^A `` I \ \\ \ \ \ \\ \ i \ / - \ / I u I \ \ \ / \ PRZ7P D-S+A/AI \ \ I / / 1 / ! / ... i T O P RACE :�1�1��@\\\\\\ , \\\\\ - s /// i^a. \ j I T / /�//��Gii/,i ��/ FORES &O EN,S a \ / ✓':- EASEMENT, TVP�'' �' �. \'� �.\\\ �\ /' / / ,,q�/ �a °t \. \ / \ ' \ / \ 0 / - \ / - 1 \ \ / - \\ - / \\\ \ - / - .. \ \\ / - � I \ / I � yy\ < / / �. r 1 CS I : \ �\ �\si\;\ �---/}�: �111 //l/lull l I lP � / 'lull\ f \ / I- I ?I: - -:`�� �N�:� '- / IIII: II /1 ////11111 111 - 1111� k h. \ X. / I I I I 1 1 1 1 1 1 1 1 I I I I - I �:! PROPOSED SWIM FOREST&OPEN SPACE �:,,. lr\..�\� - ,\ :_ -_>. !/: J. /IIII III I I11111I I I I I I I i I I1 I 1 I I , ! \/ / II \ \ II 15:: EASEMENT 6.ac. EASEMEN'TTO SERVE- \. e. / 1 I I S 3 \ :.:._�. X.,1 I I III I I I / \ � I I I NA E I. I \ AS ABEST MA GEM NT FI'ZACTi ... /. `` III I II / _ \ I I 11 \ PROHIBITS FUTURE DEVEI{ORMENT \`:. \\*1F w-- \\I\\\( I I � IIB 11I 11 I 1 li 1 1� I IIII I 1 I 1 1 I I ' / / I 0 � DISTURBANCES WITHINfn' \\ S\\\- :(4\\ I I II PROPOSED LIMITS OF 1 I 1 11 / 7 i/ I. \.\�,-.,..\ . \\ 1.. yQ \\\. �\�\\\\R�11\111. DISTURBANCE IS I I 1 / \ ......,. ) ,.,. .. \.\\ \ 1 OUTSIDE THE LIMITS I f 1 _..., ... ...... I ..:... I \. .\ \ $ I f b ... ... ..\ \\ P\\ I 1.0 � \ \ I I 1 s \.\ \ FTHE PROPOSED I_/ �\ - �, . \\ -.` ��11 \\\\l\�\���\\\\1 SWM FOREST&OPEN 11I \ I I I II \ \\ \ \\ IJ-�!� / - I Il \ ��11 - \�� ��\\\�\\\`�'\\\\\\\ SPACE ESMT, TYP. III \ , 1 I\ I 1 \ \ \ I I \ \ ,\\\\\\\\\\\\\�i\\\\ \\\\\\\\ \ \ \ \ \ \ \ \ 1#II I 1 11. .:1:, -.'-ySI'll\.:\\\\l11\.-\\\\\'(k\\\\\�\\�\\\ \ \ \ \\ \ \ \ \ 11 11 \t�\I \ II \ i \ . (1 \� \_�\ \\\\ \ \\\�\\�\\\\\�\\\\\\\\\\\\ \\\\\\\ \ \\ \ \ `\ \ \\\ \ P I \/ \ \\\\ Q\ \' "\\\\\\,, \\ \ \\ \\\ \ \ \ \ \ \\\-\\I )1 \ \\ \\�\\\ \\\\\\\ \\\\\\`\\' \\\\\\\\\\\\\\ \\ 1. 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AA ' I i 111 /Ifll( / i // '� l i v \,I ,' 'J \ ---_-- (Tc-0.08hrs.) & / /„ -/ °1 I / ' / VIVlA1\ ROPOSED ESC LIMITS OF DISTURBANCE BOUNDARY / / / V / - I V A ' - F EV.-40 / 1111�/ A 3 75' OF C w A EL / � z � A �" I -- _ / / / gl - A DEFINES THE VRRM WATER QUALITY BOUNDARY. Tc=O.00hrs. "i'; / LOW4�2V" o 's \\VAVAAA\ y' J I ( ) // o 0 TOW--.� / A- - - 1VA 1AIA 1/I / ♦ >" TOTAL ESC LIMITS OF DISTURBANCE AREA=5.7g ac. / v v v v \IVyvv"G ,}.----_. / I I/ � -III - z I ♦ / A v A. / P I 1 / v A. v - - I / v vv Ay�� too -YEAR I1 III ' / _ II V 1 3 / / �V ' \v�Vv\ FLOODPLAIN I I I V ' 11 1 L I 1 / �� �*� _�V A � (TYP.) I I I , / / �♦ F < 6� \ \ � o NAB D f \ \ _ I / I I I \�,, \ 1 1 \ / \ L - \ LO¢E� .)�' / / / \_tom■- \\ \ - _ �"�(\ , // I \ \ RRESERVED STEEP I c 'I I I ' / 'I ■ \� \- \ \// \ :\\ �yLES (TYP.)', II I l l hill l j 1 111; I 1 11� I 1 ( : @ I ♦ \\ \ \ _ _ � ..... , e1 I C I I� IIII) ! I l l, 1, o 1 !I g 1 1 j°I �_\ ■ I I I e 1 `\ ` -_ - - 1 / MANAGED SLOPES \ ' I I \ 1 I = � / / \ v 0 ! I I I I \ V AV I _ - ■1 I -- - /- / 1 � vvv v v�_ _11 v ` \11I III \V AV v V-Ij II I ! I vv rF PRESERVED SLOPES \ :'.'-�\\.�, o - \ \1, l \. \ \� \ \\ \ \.II I 1 1I IL. \ 1 \ 1 I \\� \ :/ General Construction notes for Stormwater Management Plans i. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. 2. Pipe and riserjoints are to be watertight within stormwater Management facilities. 3. For temporary sediment traps or basins which are to be converted to permanent stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. APPROVED DETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE DETENTION BASIN SHALL HAVE TURF GROUND COVER SUCH AS GRASS MULCH OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT REQUIRED. 2. THE PROPOSED SIDE SLOPES OF THE BASIN SHALL BE A MAXIMUM OF 2:1 TO REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURES. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY STRUCTURE. 4. A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEET OUTWARD FROM THE BASIN TOP OF DAM ELEVATION. PERMANENT STRUCTURES E.G. BUILDINGS SHEDS etc. SHOULD NOT BE CONSTRUCTED WITHIN THE BUFFER AREA. EXISTING TREES SHALL BE PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF AT ALL POSSIBLE. S. THE SOILS IN THE STORMWATER BUFFER AREA ARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS TO ENSURE STABILITY THE DENSITY OF THESE COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT PENETRATION AND, THEREFORE, MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB PLANTING HOLES SHOULD BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOTBALL FOR BALL -AND -BURLAP STOCK AND FIVE TIMES DEEPER AND WIDER FOR CONTAINER -GROWN STOCK. 6. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS STRONGLY RECOMMENDED AS A MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS. CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE THOSE OUTLINED IN THE SPECIFICATIONS MANUAL (COPIES ARE AVAILABLE FOR A FEE FROM THE VIRGINIA CHAPTER OF THE AMERICAN SOCIETY OF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION INC. AND THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS. 3. ALL PLANT MATERIAL SHALL MEET THE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERYSTOCK PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN 1250 STREET NW SUITE 500 WASHINGTON DC 20005. 4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. S. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES ( CALL MISS UTILITY 1-800-552-7001 BEFORE ANY EXCAVATION). 6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. 7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK BUDS BRANCHES STEMS OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE GROWN. 9. ALL PLANT MATERIAL UNLESS OTHERWISE SPECIFIED SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS, AND FREE FROM DEFECTS, DECAY, DISEASES, INSECT PEST EGGS, AND ALL FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH, FREE FROM TRANSPLANT SHOCK OR VISIBLE WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED. 10. ALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE ACCEPTED. 11. PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING AT ALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST WET BURLAP WOOD CHIPS SHREDDED BARK PEAT MOSS OR OTHER SIMILAR MULCHING MATERIAL. 12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY THE INSPECTOR INITIALLY, AND THEN THE DESIGNER. 13. MINOR FIELD ADJUSTMENTS MAY BE NECESSARY DUE TO SITE CONDITIONS (EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER. 14. NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN. 15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENTTO CONTAIN THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT CRAMPING ROOTSTOCK. 16. THE CONTRACTOR SHALL MAINTAIN A ONE (1) CALENDAR YEAR 90% CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS. THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR. 17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS. 18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. FACILITY CONSTRUCTION 1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION POND IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED INTO AN DETENTION BASIN. 2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. 3. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 4. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE. 5. CONTRACTOR SHALL ALSO INSTALLTHE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) DURING THE ESC PHASE TO ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL ATTHE DESIGN ELEVATION. 6. THE CONTRACTOR SHALL THEN CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8TO 12-INCH LIFTS AND COMPACT THE LIFTS WITH APPROPRIATE EQUIPMENT. 7. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTILTHE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN. 8. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 9. THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 10. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. 11. THE CONTRACTOR SHALL THEN INSTALLTHE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. STORMWATER MANAGEMENT NARRATIVE: THE PROPOSED PLAN PROVIDES STORMWATER TREATMENT FOR THE CONSTRUCTION OF BRIARWOOD's LOTS 226-238 (UNDER SEPARATE REVIEW). THIS VSMP PLAN ADHERES TO PART IIB REQUIREMENTS FROM A STORMWATER MANAGEMENT STANDPOINT. THE SUBMITTAL PACKAGE DOCUMENTS ASSOCIATED WITH THIS PLAN SHOW WATER QUALITY COMPLIANCE BEING MET THROUGH THE BEST MANAGEMENT PRACTICE OF OPEN SPACE PRESERVATION. THIS PLAN ALSO COMPLIES WITH PART IIB COMPLIANCE BY THE ATTENUATION OF FLOWS IN THE DETENTION BASINS. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR FULL DETAILS OF THE PLAN's COMPLIANCE. FACILITY MAINTENANCE: MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITIES. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE BASIN. 2. MONITOR THE GROWTH OF THE GROUNDCOVER AND ANY TREES AND SHRUBS PLANTED, AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT BASIN OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc. 6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALL TRASH RACKS REVERSE SLOPED PIPES OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING LEAKAGE DEBRIS ACCUMULATION OR OTHER FAILURES. 8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION AND CHECK TO SEE WHETHER VALVES MANHOLES AND LOCKS CAN BE OPENED AND OPERATED. 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN s ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DETENTION BASIN's CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIALSITE PREPARATION INCLUDING INSTALLATION OF PROJECT E&S CONTROLS 3. EXCAVATION GRADING e.. INTERIM FINAL ELEVATIONS 4. EXTENDED DETENTION BASIN INSTALLATION e.. INTERIM AND FINAL ELEVATIONS 5. INSTALLATION OFTHE EMBANKMENT THE RISER PRIMARY SPILLWAY ANDTHE OUTLET STRUCTURES. 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING) 7. FINAL INSPECTION DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE StormRax- ROUND SERIES TRASH RACK CONCRETE MANHOLE STANDARD 60INCH RACK SHOWN DIMENSIONS IN INCHES PLAN SIDE VIEW StormRax"r Round Series for CDnaete Manhole Part Na NmA I INmB I N.0 I MIMI) I NbI RL24 17% 1 1414 L 24 30 W36 21% 14 404 36 43 " 27M a s7 11540 27% 1 18% 1 66% 1 60 70 Plastic Solutions, Inc. ZFRU'D'Em�77, PO Bn243M. Nlrrhem . VA 22" 7MA1r,CI M.`.w.I..VAi24W M" 877.5127 Phone LUI�MS. G ISOMETRIC 00MRIU E STRUCTURE DIMENSIONS INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OPTIONS GROSS BRACING FOR OVERHAND NDPE ANTI-VORTE K RATE DATE am 6Y_ AMD III DETAIL Lie. No. 035791 9/3/20 14 J r- f m 7 1n J Q F- CD N M L7 Z W W MINIMUM W Ul Z J j U CY) i--1 Cr. M C7 N z MNt W 1 N Q N z J N W 1--4 Q 2: I— > < LU LU J C;6 _jz > Q 2!> a J J LU /� a- 0- 0 0- z J N L.1_ W c G Q � /'� V/ W > U Q z 1 a i V.J C G LLI F- 01� LU �VW / Q Q LU /� LL LU Q 0 F- 00 0 U) ~ 0 LULU Of Q 0 II N co w F_ w w cL JOB NO. 122071 SCALE AS SHOWN SHEET NO. 9 � I UKI°I WA I CK MAINHIoCP'ICIN I rHt.11-1 IT -A UC I ALL I Z:.ALC Ur 1 =JU J IA FR DBASIN OOR' ' PRESERVED SLOPES TO / / `-+' / ,5 HAAL�L HA�E P SITIVE SLOPES REMAIN,UNDISTURBED p /� // ,.�p�-fir' / / / TOTH�RIS 's LOW-FeOW / ORIFI E I ALL L CA IONS ROT�SED , o 0 V�71"D"''T,IN,SWN� �jSS& / I- �/ /MA) TENANCE fiSMT. /�/� AMEND D o' IDEVDOTCL.I / 0 O Cl lqllllllr RIPRAP LLWAY CREST / ELEVATION=424.50' f \ / \ F / (io' TOP OF DAM ELEV. = 426.00') c / /¢v S�c�T, F/6R // / / h A�RVID brr�e RA APPROVED 030" CL. III RCP STANDPIPE w/ \� TRASHRACKS SHALL SERVE AS THE RISER STRUCTURE. RISER STRUCTURE RIM \ ��� \ ELEV.=423.50' w/ ONE (a) 01.5" LOW -FLOW \ ' ' I I I I I \\ \ \ \ y ORIFICE w/INVERT ELEV.=418.00. \ `�������� �R` � \ 1 \ P OD�RISERE AND'BARREL / APPR3YED-0z5""CC III RCP \ \ \ \ �C�N ICE �I�$HgLL�E FIR YEMBEMED � J O BARREL w/ VDOT STD. EWW�(682F, A(EyAiRCYsDi "THICK'CONCRETE �i� NV. IN-,i6:oo—INV.-OU�415,9')\ \ \�B N�ATIOLIi Twl sQ`FH€58 sIi RicDl D / _0TJ I D-0�-v'V \\ \ \ 'DPLl I SOFLOAI(i�iON,�� L /V APPROVEDVDOT#3 COARSEAGGREGATE \ �� /— t :\ o OUTLET PROTECTION w/GEOTEXTILE FILTER FABRIC UNDERLAYMENT (L=10', W=5', D=2' MIN.) . V\ \\@O \ \ \\\\ EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SITE's SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQAPPENDIX A: EARTHEN EMBANKMENT (REQUIREMENTS vs. RECOMMENDATIONS), THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH IS THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON THIS SHEET. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. STORMWATER MANAGEMENT FACILITY'B' DETAIL (SCALE OF 1"=30') / 430 \ \ / 420 / `i'EAAM� / / AMENDED o'WIDE LINED ACCESS ROAD lid `'` \ PPROVED BASIN FLOOR SHALL HAVE 1 / X. �� POSITIVE SLOPES TO THE RISER's Il APPROVED 030" CL. III RCP LOW -FLOW ORIFICE IN ALL LOCATIONS STANDPIPEw/TRASHRACKS SHALL g� SERVE AS THE RISER STRUCTURE. LY G RISER STRUCTURE RIM ELEV.=407.90' w/ONE (1) 02" LOW -FLOW ORIFICE tv sr. +1+0 w/INVERT ELEV.-4o4.00. r / /,�P,P Opa E�IDACC�SS& / 0 a % 'MAINTENANCE ESMT­ 4ot� \ \ I I) I 1 APPROVED RISER BASE AND BARREL CONNECTION PA PROVED.0L5" CL. III RCP I (( PPROVED 25' WIDE GRASS LINED SHALL BE FIRMLY EMBEDDED 6" INTO A °_B&IRREL w/ VDOT STD. EWN y EMERGENCY SPILLWAY CREST � F REINFORCED 18" THICK CONCRETE FOUNDATION t (48LF%IVVdN=y03_5o', INV. 5 I I ELEVATION=4o8.go' 0 THAT IS 5'x5', AND IS BURIED BELOW THE LIMITS °, OUT= 0 1 ) (10' TOP OF DAM ELEV.-J4loioo') , X_ o OF THE BASIN GRADING TO PREVENT FLOTATION. 4 3 4' r _ APPROVED VDOT #3 COARSE AGGREGATE / o APPROVED STORMWATER MANAGEMENT BASIN B NOTES: _ OUTLET PROTECTION w/ GEOTEXTILE FILTER / i. THE REVIEW, PROPOSAL & INSTALLATION OF THE RETAINING FABRIC UNDERLAYMENT (L=12', W=6', D-2' MIN.) WALL ARE NOT PART OF THIS SET OF PLANS. THE RETAINING `� �� P / I I I I / I/ I/ WALL DESIGN WILL BE REVIEWED SEPARATELY. Y / 435 • 1/2" zinc plated hook attached with. 3/8' fastener ®® 2-1/8" dla. holes lsornctric .��.CCt10❑ air arl6ce cde vat.wu DFRRTS CAGE 435 PPROVED 30" CL. III RCP STA 4DPIPE w TRASHRACKS SHALL E ERVE AS FHE RISE 430 STRUCTURE RISER STRUCTI. RE RIM 430 ELE .=423.5o w/ONE() Oi.5"L W-FLO APPR BA VED BA IN FLOOR ORIFICE / INVE ELEV.=4 8.00. SHALL AVE TIVE SL PES TO TH ORIFIC EIN ALL OCATIO S 425 425 _ CONT ACTOR HALL ' STALL HE EMBANKMENT INACC RDANCEw/THE SHOWN p ON HIS SHE T. ' 420 420 PROPO E GRADE o z%MAC, FLOOR ELEV.= 418.00' 415 415 APPROVED RISER BASE AND BARREL EXISTINC CONNECTIC N SHALL BE FIRMLY GRADE EMBE DED 6"INTO AR INFORCE 18" THICK ONCRE E FOUN ATION THAT IS 5'x5', A D IS BURIED BELO THE LIMITS OF APP OVED 0 5 "CL. III CP BARREL BASINGRADING O PREVENT w/VDOTST . EW-1( 8LF, INV. 410TH =416.00', NV. OUT 415 49') 4 10 W W 0 ,°,� n 0 al 0) J J W Lu nM'1 lD W 06 N l7 l7 a s a s a s W LL 0+00 0+50 1+00 1+50 1+75 SWM FACILITY A SECTION HDPE sbvctursl plsatir, wll.h holes and 1/4- plate / manufactured by Plastic s,ol,Awris Inc or equal PLASTIC SOLUTIONS P.O. sox ary8a tfineheeter Ya 22e04 INC. 877-877-67Z7 wn pledr-rsI Wataa ZLI SWM FACILITY A SUMMARY Elevation, ft. Area of Contour, sf Volume, cf 418 616 0 420 1,437 1,996 422 2,558 5,937 424 3,810 12,264 426 5,191 21,229 SPILLWAY CREST ELEVATION=424.50 (2o' TOP OF DAM ELEV. = 426.00') APPROVED VDOT#3 COP AGGREGATE OUTLET PROTECTION w/ GEOTEXT FILTER FABRIC UNDERLAYM (L=10', W=5', D=2' MIN. APPROVED BASIN SPIL SLOPES SHALL BE 4:1 C TO PROVIDE A SM VEHICULAR TRANSITI( THE ACCESS ROAD & T THE GRASS LINED SI 430 114- HDPE plate (optional) HDPE structural plastic with 2-1/8" holeg and 1/4" plate manufactured by Plastic Solutions Inc. or equal shown with optional plate Perforated c FOUNDATION DRAIN SECTION A-9: TYPICAL, GRAPffiC.AL DETAILS Homogeneous fdl r- - - ------� �� \ 4r Ran Cut off trench m110111 ot al eu}la6lsl TYPICAL HOMOGENEOUS EMBANKMENT dram 70041 Of rods outlet -Rock kne zkTrun iiti in filter CHIMNEY DRAIN Transition fill Rock or gravel Blanket drain BLANKET DRAIN Roe< or gravel drain Tronaition faker TOE DRAIN Figure A-Ia. Homogetteons Embankments it S'et7)a?e Controls PROFILE SCALES 430 1"=5, M 1"=5o'(H) RSE EXISTIN GRADE LE ENT 425 425 -WAY SIDE 40' R FLATTER OOTH t PROPOS IN ALONG D ) PROTECT GRADE (LLWAY. 420 1 420 o0 0 o 0 EOLL N N N Sd 0+50 0+75 APPROVED BASINS A & B NOTES: i. SEE DETAIL ON PREVIOUS SHEET FOR RISER TRASHRACK/FRAME & COVER. z. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE DETAIL ON THIS SHEET, OR EQUIVALENT, FOR ORIFICE TRASHRACK DETAIL. 3. A REINFORCED CONCRETE FOUNDATION SHALL BE INSTALLED ON THE RISERS AS SHOWN & SHALL MEETTHE MINIMUM SPECIFICATIONS SET FORTH IN THE VESCH SPEC. #3.14. 420 420 415 410 APPROVED BASIN FLOOR N SHALL HAVE POSITIVE SLOPES .� TO THE RISER's LOW -FLOW ORIFICE IN ALL LOCATIONS 405 A. APPROVED RISER BASE AND BARREL CONNECTION SHALL BE FIRMLY EMBEDDED 6" INTO A REINFORCED 18" THICK CONCRETE FOUNDATION THAT IS S'x5', AND IS BURIED BELOW THE LIMITS OF THE BASIN GRADING TO PREVENT FLOTATION. w w m n o W LU y N w It 0+50 g COUNTY OF ALBEMARLE Department of Community Development Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for a stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not m provide design drawings as construction record drawings. Z� A. A signed and dated professional seal of the preparing engineer or surveyor. O G B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify H z proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. ` 3. Updated Location with geocoordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. W 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey w/ of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required li for alterations from the design. 6. Plants, location and type. 7. Plans and prordes for all culverts, Pipes, Risers, Weirs and Drainage Structures -Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage CD must be within platted easements. Provide copies of recorded documents. r� 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design, 12. Material layers - biofdter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state milt. 13. Access roads show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. SWM FACILITY B SUMMARY Area of Volume, Elevation, ft. Contour, sf cf 404 107 0 406 567 614 408 1,145 2,292 410 1,826 5,237 APPROVED 030" CL. III RCP STANDPIPE w/ IXISTIN TRASHRACKS SHALL SERVE AS THE RISER GRADE 415 STRUCTURE. RISER STRUCTURE RIM ELEV.=407.90'w/ ONE 0z"LOW-FLOW ORIFICE w/INVERT ELEV. =404.00. APPROVED 25' WIDE GRASS LINED EMERGENCY SPILLWAY CREST ELEVATION=4o8.9o' 410 (2o'TOPOFDAM ELEV.=410.00') 4�5 405 CONTRACTOR SHALL INSTALL THE EMBANKMENT IN ACCORDANCE w/THE DETAILS & NOTES SHOWN ON THIS SHEET. APPROVED OiS" CL. III RCP BARREL w VDOT STD. EW-1 8LF INV. / (4 IN=403.50', INV. OUT=403.14') APPROVED BASIN SPILLWAY SIDE SL SHALL BE 4:1 OR FLATTER TO PROVI SMOOTH VEHICULAR TRANSITION A 00 THE ACCESS ROAD & TO PROTECT GRASS LINED SPILLWAY. APPROVED VDOT 43 COARSE `t a)O AGGREGATE OUTLET c0i a0 Ot PROTECTION w/GEOTEXTILE I d S FILTER FABRIC UNDERLAYMENT (L=12', W=6', D=2' MIN.) 1+00 1+25 SWM FACILITY A SPILLWAY SWM FACILITY B SECTION 415 EXISTIN GRADE 410 410 F M v w 25 OPES DE A -ONG THE 405 405 a ELUOUJOL�u S PROPOSED GRADE SWM FACILITY B SPILLWAY SCOTT/R. CZ'LLINS'Z Lic. No. 035791,E 9/3/20�� M 1 N LU M N N Q LLI J J C0 LU F"- 0 J Q U Uj Y I z LU G 0 LauJ 1-1 z Q LU z 0-6 Q J � z LLJ Lu / Q � cz G W LLJ Q ^2 � LL O V) 0 0 I..L fL-L W w J F- w W O W a JOB NO. 122071 SCALE AS SHOWN SHEET NO. 10 �s