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HomeMy WebLinkAboutWPO201900035 Plan - VSMP 2019-09-12I PROJECT INFORMATION 1. PROJECT NAME: 2265 DECCA LANE 2. OWNER OF LAND: LEIGH & CRAIG JOHNSON 2265 DECCA LANE CHARLOTTESVILLE, VA 22901 PHONE: (804) 201-082Q 3. APPLICANT: LEIGH & CRAIG JOHNSON 2265 DECCA LANE CHARLOTTESVILLE, VA 22901 PHONE: (804) 201-0820 4. CONTACT PERSON: KURT M. GLOECKNER, P.E., P.L.S, GLOECKNER ENGINEERING & SURVEYING, INC. 1980 FOX RUN LANE CHARLOTTESVILLE, VIRGINIA 22901 PHONE: (434) 971-1591 FAX: (434) 293-7612 5. BOUNDARY DESCRIPTION BY: GLOECKNER ENGINEERING & SURVEYING, INC. 1980 FOX RUN LANE CHARLOTTESVILLE, VIRGINIA 22901 PHONE: (434) 971-1591 FAX: � (434) 293-7612 6. BENCHMARKS AND DATUM ELEVATION INFORMATION BY: GLOECKNER ENGINEERING & SURVEYING, INC. 1980 FOX RUN LANE CHARLOTTESVILLE, VIRGINIA 22901 PHONE: '(434) 971-1591 NAVD '88, BENCHMARK ELEV: 603.439 ADDITIONAL BENCHMARKS PROVIDED AS SHOWN ON EXISTING CONDITIONS SHEET 2 7. SOURCE OF TOPOGRAPHY: GLOECKNER ENGINEERING & SURVEYING, INC. 1989 FOX RUN LANE CHAR LQTTESVI LLE, VIRGINIA 22901 PHONE ` (434) 971-1591 FAX; (434) 293-7612 FIELD SURVEY PERFORMED: 10/2018 8. LEGAL INFORMATION: TAX MAP 42 PARCEL 59B DEED BOOK 5097, PAGE 354 DEED BOOK 130, PAGE 613 DEED BOOK 413, PAGE 211 DEED BOOK 413, PAGE 205 DEED BOOK 344, PAGE 215 DEED BOOK 1583, PAGE 223 9. ZONING: RURAL AREA WHITE HALL MAGISTERIAL DISTRICT 10. SETBACKS ARE AS FOLLOWS: PRIMARY STREET FRONTAGE: SEVENTY FIVE (75) FEET MINIMUM. SECONDARY STREET FRONTAGE: TWENTY FIVE (25) FEET MINIMUM SIDE: TWENTY FIVE (25) FEET MINIMUM REAR: THIRTY FIVE (35) FEET MINIMUM 11. PRESENT USE: RESIDENTIAL 12. PROPOSED USE: RESIDENTIAL ICI' A �BEMARLE 42 PARCEL 59B COUNTY, V-RGI-N - 1A VICINITY MAP SCALE: 1 "=900' SHEET INDEX # Sheet Title i COVER SHEET 2 EXISTING CONDITIONS PLAN 3 GRADING PLAN 4 POND GRADING PLAN 5 EROSION AND SEDIMENT CONTROL PLAN -PHASES 1 AND 2 6 DRAINAGE PLAN 7 STORM SEWER PROFILE 8 EROSION AND SEDIMENT CONTROL DETAILS 9 EROSION AND SEDIMENT CONTROL DETAILS 10 EROSION AND SEDIMENT CONTROL NARRATIVE APPROVAL BLOCK ALBBEMARLE COUNTY ENGINEER DATE VRRM Project Name Date. 61WP Design, Specifications List2013 Draft $tds & Specs. Site Information T ) Cold "V L� A��� �)> SPREADSHEET�r`` Post- eveloPment Project (Treatment Volume and Loads) Cover (acmes) Runoff Coefficients (Rv) A Soils B Soils ic Soils D Soils Forest/ Space 0 OZ. Q Q3 (.04 D Da ,Managed.Turf D 15, a 2Q:; � 4•25 lmpervious Cover Q.9,5. d 95: 0.953,9�a 13. THIS SITE IS WITHIN THE LOWER MECHUMS RIVER WATERSHED 14. THIS PROPERTY LIES IN AN AREA DESIGNATED AS ZONE X" AND AS ZONE "AE" RANGING FROM ELEVATION 467 TO 470 INSURANCE RATE MAP COMMUNITY PANEL #51003CO255D, EFFECTIVE DATE FEBRUARY 4, 2005 REVISIONS JULY 16, 2019 DATE MAY 28, 2019 SCALE N.T.S. ;1 15. ABUTTING PROPERTIES: TMP 42-59D t. TMP 42-36 LOWD.ON, JOSEPH DEVON & WRIGHT, VIRGINIA C. ABRAMS, ASHLEIGH B. & MICHAEL B. CO -TRUSTEES OF J.D. LOWDON,. & V.C. WRIGHT LIVING TRUST D.B. 4997 P. 651 D.B. 3516 P. 533 2241 DECCA LANE, CHARLOTTESVILLE VA 22901 2337 DECCA LANE, CHARLOTTESVILLE VA 22901 TMP 42-59 TMP 42-59C HICKS, BARBARA M. HICKS, NEIL WALLACE D.B. 130 P. 354 D.B. 4345 P. 735 2301 DECCA LANE, CHARLOTTESVILLE VA 22901 2351 DECCA LANE, CHARLOTTESVILLE VA 22901 TMP 42-59A TMP 42-58A FOX, RICHARD A. STRICKLER, ELLIOT BROCK TRUSTEE OF THE RICHARD A. FOX TRUST TRUSTEE OF THE BETTY STRICKLER ASSET PROTECTION TRUST D.B. 4391 P. 158 D.B. 4493 P. 744 2345 DECCA LANE, CHARLOTTESVILLE VA 22901 2415 FROG ROCK LANE, CHARLOTTESVILLE VA 22901 TMP 42-58A1 BUFORD, ASHLEY V. & WARREN B. III D.B. 4655 P. 227 2405 FROG ROCK LANE, CHARLOTTESVILLE VA 22901 16. PLAN PREPARED BY KURT M. GLOECKNER, P.E. & P.L.S. 17. WATER PPROVIDED BY ONSITE WELL DRAINFIELD DESIGN BY OTHERS 18. ACREAGE CALCULATIONS: TOTAL ACREAGE = 47.30 ACRES (2,060,388 SQ. FT.) 100% DISTURBED AREA = 3.20 AC, ; t PRE —DEVELOPMENT IMPERVIOUS AREA = 0.18 ACRES (7,681 SQ.FT.) POST DEVELOPMENT IMPERVIOUS AREA = 0.32 ACRES (14,087 SQ.FT.) 19. RELATED DOCUMENTS: WATER QAULITY AND QUANTITY APPENDICES APPROVED by the Albemarle County Community Develop ent Department Date S`Z ------ File __ v ©i_-- �Tx of � --- 6 KJRT M. DEt tNER y Lic. No. OD5649 7/1 e-- - J 'i jCNAL MIN JOB NUMBER 18-013-00 DWG. NAM E S\ P�, v 11 SHEET OF1 0 LOWDON, JOSE CO -TRUSTEES OF J.1 TN ABRAMS, ASHLI D.B. '4 MAGNETIC MERIDIAN SCALE IN FEET 1 "=150' I YEAR FEMA FLOODPLAIN PER AARLE COUNTY GIS I WATER QUALITY SUMMARY TO EXCEED THE TARGET POLLUTANT REMOVAL RATE OF 0.41 LBS/YEAR, THE OWNER IS DEDICATING 2.5 AC. OF FOREST/OPEN SPACE EASEMENT. REFER TO SEPARATE PLAT AND AGREEMENT AND REFER TO VRRM SPREADSHEET FOR COMPLIANCE CALCULATIONS ON SHEET 1 ;HUMS RIVER PROPOSED FOREST/OPEN SPACE EASEMENT A=2.5 AC. TER QUANTITY SUMMARY AT POINT OF OUTFALL YEAR PREDEVELOPMENT PEAK FLOW = 1.42 CFS -YEAR PREDEVELOPMENT PEAK FLOW = 5.61 CFS YEAR POSTDEVELQPMENT PEAK FLOW =0.18 CFS (87% REDUCTION) YEAR POSTDEVELOPMENT PEAK FLOW 3.11 CFS (45% REDUCTION) TE 1: 2 AND 10 YEAR PEAK RUNOFF OUTFALLS VIA OVERLAND SPILLWAY TO '-RAP OUTLET AND FLOWS BY SHEET FLOW ACROSS THE PROPOSED LEVEL READER DIRECTLY INTO THE 100-YEAR FLOODPLAIN FOR MEHCUMS RIVER. TE 2: REFER TO HYDROLOGY AND HYDRAULICS CALCULATIONS FOR BACKUP DN ER PER NOTE JTY GIS NO GRADING OR FILL WILL OCCUR IN FEMA MAPPED FLOODPLAIN. REVISIONS JOLY 16, 2019 DATE MAY 28, 2019 SCALE 1 "=150' „r'p"TH pp J�TM. aoEaaNE uc. No. 005649 JOB NUMBER 18-013-00 DING. NAM E REVISIONS Iwo JULY 16, 2019 MAGNETIC MERIDIAN 0 5 10 20 SCALE IN FEET 1 "=10' MAY 28, 2019 SCALE 1 "=10' $WL� H of �M. GLOECKNER F" �► Lit No. OD5649 ; I a i; IA 11910molummowL 18-013-00 DWG. NAME g0 / g8 $6 g4/ 82 o" 695 0+39.76 10+46.62 10+49.18 1 0+53.19 VDOT S CL1 RIP- DIMENSIOi ._ PERMANENT \ �' - 4 \POOL=472.5 \ \ :'r74 ,.tom XOb74 . � 5'�• 19 )O-YEAR FEMA \ .� .00DIPLAIN PER Z .E COUNTY GIS �f Channel Report HY�«f4pw zpr x# ns! t feT A+atc� s!€�A t¢ At �,1viP ti+AutQ k. Inc, y2. �0 t <Na'me> Tra,ppzwit l t�i�hligh l Bottom �flltitltlt ft 60(9 Diet h ft _ • 02, ,1._ sideSlope4� � } r}s - �.aa, ,a0(r� Q(, f) = 3.110 4t�I D �` Total h ft R � � -� 1 40 A,'re� 8 f t = 0 .76 47,Qi00 VeiwitY (fils,� = 4.0.7 _ 4 S � to e _ _ �` 1300 Wetted .66 f P.... nn = , �, .6 ? : � V� u _ 0 0�o CrtD�th,Cft t Y 0 20, Top W dtn (ft) ,� ,s 7 CaI "I fli% EG1 {ft� -, 03.8 EIeV 472,�,0 471.5b 10 47,E 470.:50 (ft) \V1 POND GRADING PLAN SCALE: 1 "=20' Section Qepth (ft) 2.00 1,5,0 1.0Q o.00 Qa to , Known : _.. mpg by , _ ... .... .... 469.54 -0,50 2' (1 4 6 8 10 12 14 is Reach POND OUTFALL DITCH COMPUTATIONS SECTION A -A (1 0-YEAR DESIGN FLOW) 34.0' 12.0' 10.0' 12.0' TOP OF DAM=477.0 3.2' FREEBOARD ' 1 3'� 100-YEAR WSE=473.77 10-YEAR WSE=473.19 SPILLWAY EL=473.0 2-YEAR WSE=473.01 Q 0 66 ro / XTRAZOIDAL GRADED GRA SPIILLWAY IMUM 6'-WI DITC AND 3:11 SID DE CL S 1 RIP -RAP UTLET PROTECTIO TO LEVEL SPIR ADER TO PROM TE SHEET FLOW NTO FLOODP AIN (SEE DETAI /THIS SHEET 660 PROVIDE 44'- NGTH LEVEL SPREADER E DETAIL. THIS SHEET) MAGNETIC MERIDIAN 0 10 20 40 SCALE IN FEET 1 "= 20)' NOTES: 1. ALTHOUGH WET POND IS DESIGNED FOR WATER QUALITY ONLY. VA DEQ DESIGN SPECIFICATION NO. 14 CONSTRUCTION AND INSPECTION DESIGN STANDARDS APPLY. 2. AN AS -BUILT SURVEY OF THE SWM FACILITY, INCLUDING THE LEVEL SPREADER IS REQUIRED, INCLUDING TH PREPARATION AND COUNTY ACCEPTANCE OF CONSTRUCTION RECORD DRAWINGS. Meg 480 475 470 465 460 455 f} o j..... a m � j `_ m �,.v..:_,. .. a m -.,..»...,,.......«..........�.... tee..__,.,.,.,-..._.....,.... ....._.,...�.._r..,.:,..,..-. _ � � M7p 'ter ,r�...,..-.,..:-�1:_�/...._.....::..+....:-,..........::.ti. :.-.,f,.:,_. �.••,�, i CD 46 An 0 0 I _ . 03 0 PERM POOL 472 5 ._.M.._\ , I 3 _ . 20� SAFETY 1 uj I m m I m Q I .,...,,_�..,. �«...:.....,..,.� E. .,v_...•.:..-..-,._..._.ao' .���w...� _....,.w..�_....��._�._ww.....,w._.,I.....a..�.__....�.._�,� ,•_.....,.w_,..�;� ,o �W I.-c ..0 .: y.......� ,�..- ..0 �. � 1C:, � -,... II�i I�-....::.«...-a..,r.+..,.-..,.. Y ♦ �. _ 1 ,V, 'M. :....�..ur...c,... ♦,..r.. ...,. �. © ...- � _ e� I... 0 w ...,a...,. . ......,. ....., ,•.. .N,..., .;.4_... cm t bee ,Q 56 I 10+00 10+50 11 +00 11 +50 12+00 12+50 REVISIONS E JULY 16, 2019 485 480 475 470 465 mm 455 POND CROSS-SECTION HORIZ. SCALE: 1 "=30' VERT. SCALE: 1 "=7.5' �.` NOTE: CL 1 RIP -RAP OUTFALL CONSIISTS OF APPROXIMATELY 32 CY CL I RIP 0 RAP. PROVIDE FILTER FABRIC UNDERLAYMENT KEYED IN TO GRADE AS SHOWN �• ` 66 ON FIGURE 2 6 THIS SHEET POND OUTFALL DITCH - SEE �Q` TYPICAL SECTION THIS SHEET \ 0 0 � \ 67- 66- 0 \ CL 1 RIP -RAP PLUNGE POOL CL 1 RIP -RAP OUTLET PROTECTION 57 66� DIMENSIONS = 10' L X WIDTH DIMENSIONS = 10' L X WIDTH VARYING O - VARYING FROM 16' TO 30' X FROM 6' TO 20' X 2' DEPTH p 6fi- 1' DEPTH fi60 -66 �t "_ AGGREGATE 1 3 COARSE 40-LF LEVEL SPREADER (FOUR TREATED 6X6 TIMBERS - STACKED AND ANCHORED r, 6 _• WITH #5 REBAR 0 4 Qo n . P 'o j 100-YEAR FLOODPLAIN •ps PER ALBEMARLE � COUNTY GIS MAGNETIC MERIDIAN ' 0 5 10 20 �0 SCALE IN FEET 1 "=10' I x R a H Arl If :� F1 N TE��. 1 i�AY '� EQ.lCE UN it E C Ea >nNt.U�i � Ei�E 0 H BE R G' T N. 1 NUV�'4LL-YIQULQ, PTiaTRUO£ e1BQ C: SHOULDER LINE, '6, BE;VQL EQ� R.c-QUIREU".UN TI;tE FiEAGYiPL� 'AT THE INLET ENU, OF THE e 1N Q CA. $BALL T 7�''•{JF END. Rf3O�EQT :*A*_0YE ;"ILL ai�R(, CULVERT tWHERI T14E f;L¢(1"i ENTERS THE CV0ERR, f T .H � I ft. L F F I 1A T T I G VF T AY ITt1 €i SQ tiFi 7. 1 AL? LL T H_ U LE €NCJ F ``Tf1E UL wR M a,. E � Q E i4 CY K1 2: Tkil5 IFEM MAY BEm'PRECA�'T OR CAS f iN. PLACE. EQ� CJR HEvu €w,; ... s " T A QU �? A G. ;. Q r3E L A3: P13E., T nR i 5 ,: EL Y� � L ER 3. �:,; G S H PLACE .C�J1�1,.RE7� . G .S. FSH AS SEE �3. Q '�Sti � 1_t7'eV. l"II:LS NEf?E ECTCiti'ALLS' ARE .1 _ S E 2 H L . I _ . SAL _ K _. . . �. SHEET 1Q1,C?2, L1NTriIE';T:1}P 9F T,F1 EMW'ALL ��HAIIR:F3F G{T�.fR�J.OTFO'PPx�I1EL'T�J THE e a R •QF N �. Q. T C � .� se �s�a 'tY1IH 'STRAIGHT GR05S N .s • ALL �4, 7H15 si�G.�•z 1 1. � SKEW 10' TR AS") 4. }fit ` HAh1F l : MAY 8E ARbVIF}E[} QM; ALL E[l%ES AT MANUFAC.TUR R'S, OF T14rd_ 5. t}E Q%AN LL TO BE UEVEL;EQ ITS ALL ARE kS Ek�EPT 1`��iERc "A C�1NFL14 T WITH NvEt�T; 1 ",? EDIY-1� C PIPE ;EI'+ID,WALL F'OR IRC LAR, P IAk4E ER Ci14 ;, .FRY 19 , 1 0[j 3fk 3 ok 3fi,` 34 1. 1 23°I4'; r.iJ$I..Q YARQ? ; QE • �Q.NQQ E'TE 'QNG. PIPE 0.241 0'.492 , 0.; 33 1, 3 2 0 7 2.947 f :i.1r PIPE U 25? U.52, Q 73� 1..399 2,196 ,195 F I I IRE E,ND.W OR L P T CAL P A� l',. . E t� _ QF'ElLIPTiC'A P'f"F CLIL1l£f?T Sq.,Ate c Ri E}. 3',� 14 t} 3x 3 ��'' 38'e�` i �.f � �? 4 'A��J" a f It f� �, EI I'-2" 1'-•5" 1'-.0. t'=8" ;I -9 1 �t(3-> 1 -ii;: 1'-1,1"• n 1 -zw r. 1 s � z s'' z' a n,1g"t.g'd:; Q'•9" Q.`.,g• {".! tJ`-9" t 4 5„ b. CU$C YARD5 OF £L�t.�CRETE GQNCJIIPE 0.5[ 2 0.$55 1.23ki 1, U0, 1,d11' l:1G11 %2,512 2189'..1 LEVEL SPREADER DETAIL SCALE: 1 "=10' KEY [L 6 16VER Ind " Exl TIP4 cap, 4 TREATEU t TE LIP .1 cr.�,,. .,. h, I_ F T CA I N I�EGI IPA FL- p,. / i r�e t TO.: A. "L SF "ice L _ j I P. y, H1 i_ 8EAT 1-3' IN. I- AJR A �, QF`IIECA_ 1 R tQ.1 FF F.1 11`4II-I� A 13 ��8i a�t� - F�STABILITY FBI_ t J 1'3�8E E�TuTtt e.� t�'�1� 1:! .� t 11IViE 4810NI Eli tt 1 c � �� Il T -0 IL: EF+' t~ .. 'S�'i'i .tea .. $ j E t1 ' qf_ 1! . _� , � A 3'rlfPt,4 Tl!i�l''>i 3' MIN MIN u. Iyitv a 4{ t. _ y f .. • t 9 l . ''ra � et • '�a v t �"r�' � art �r�r Pre, d red .�' � �` , . ►�► �• ure �e � � _. FIGURE 2.6 BMP CLEARINGHOUSE SPECIFICATION NO. 2 (PAGE 8) A':Gt?PY Q� Tt F��CINA 5E L4U fu`t� . IGhiE,Q gRAV�IN IS Qf{ FILE I, rsE tVTRk C�FFiGE. 1VC �T S'TA(`�LARQ EJDV'ALL FOR PIPE .�JLEIS rr1�,cI��� R Aria 12'' .3#a"' CIRCULAR i41�1D 23�' x 14,"' - ,53 ", x 34" ELLIPTICAL PIPES I�Evl�lct� QATE !41E i �� I VDOT STD. EW-1 DETAIL FOR STRUCTURE 1 V.IRGINIA DEPARTMENT OF TRANSFOR:TATION C� €/ 19 1pj r�} DATE MAY 28, 2019 SCALE 1 "=20' op r� KURT M. GLOECKNER �. Lie. No. 005649 w z z � o W � Q a LO � as C\2 C\2 JOB NUMBER 18-013-00 DWG. NAME 00 S 'c;'3 rye. GP �G SHEET �ti 4 OF10 POND SPILLWAY DETAIL SCALE: 1 *= 10' EROSION AND SEDIMENT CONTROL PLAN - PHASE 1 EROSION AND SEDIMENT CONTROL LEGEND PROVIDE WATER SOURCE TO CLEAN MUD FROM CONSTRUCTION VEHICLES BEFORE LEAVING THE SITE — DIRECT WASH WATER TOWARDS SILT FENCE, SILT SACK OR OTHER APPROVED FILTERING DEVICE 45 —8" HDPE 05.63% LIMITS OF CLEARING AND GRADING (AREA = 3.2 AC.) 52 —8" HDPE 0 12.05% /-58 -=8" HDPE @ 15.96% EX. CRITICAL SLOPES PER ALBEMARLE COUNTY GIS (TYP) REVISIONS JULY 16, 2019 F'AVW L(JNb I KULFIUIN ENTKANLF SILT FENCE DIVERSION DIKE OUTLET PROTECTION TEMPORARY SEEDING PERMANENT SEEDING MULCH SOIL STABILIZATION BLANKET/MATTING LEVEL SPREADER (TEMPORARY FOR E&S) 0 30 fiO 120 SCALE IN FEET 1 "=60' TEMPORARY STOCKPILE NOTE: IN THE EVENT THAT A TEMPORARY STOCKPILE AREA IS NEEDED FOR STRIPPED TOPSOIL, CONTRACTOR TO PROVIDE SILT FENCE DOWNSTREAM OF STOCKPILE LOCATED ALONG CONTOUR. 100—YEAR FLOODPLAIN PER ALBEMARLE COUNTY GIS PROVIDE RIP —RAP OUTLET PROTECTION AT POND SPILLWAY OUTFALL AND 40—LF LEVEL SPREADER TO PROMOTE SHEET FLOW OUTFALL INTO FLOODPLAIN. REFER TO DETAILS ON SHEET 4. EROSION AND SEDIMENT CONTROL PLAN - PHASE 2 /� �vo DATE MAY 28, 2019 SCALE 1 "=60' H 0p D Kt1RT M. GLOECKNER a Lic. No. 005649 V; ln�__ olip) JOB NUMBER 18-013-00 DWG. NAM E �G ANN 1�0 h' GGP �T SHEET 5 OF10 PRE -DEVELOPMENT DRAINAGE AREA TO POND PRE -DEVELOPMENT COMPOSITE CN CALCULATIONS SOIL TYPE BREAKDOWN SOIL # SOIL NAME1 ACRES , % E SOIL GROUP 2B ALBEMARLE 1.32 34.8%.__...__ . _._..0 21C ...._ CULPEPER 0.35 9 2% 21D _._.... �........ CULPEPER 1.56 .. 412% _ B 22C3 j i 0.42 _.._ ....E 11 1% ... B 8613 „CULPEPER TURBEVILLE 0,14 3.7% $ TOTALS 3.79 100.00/0 I COMPOSITE CN CALCULATIONS / SOIL 'GROUP; CN PASTURE (GOOD) WOODS/RURAL AREA (GOOD) IMPERVIOUS AREA ._ ...__. SOIL GROUP SUMMARY A B C ; D TOTALS 0 2.47 1.32 0 3.79 I _. 3 5 !o 1 0 /o 10 0 /o NOTE: COMPOSITE CN VALUE USES BASE CN VALUES WEIGHTED 66% TYPE B AND 34% TYPE C COMPOSITE TOTAL 3.79 272 66 POST- DEVELOPMENT DRAINAGE AREA TO POND REVISIONS JULY 16, 2019 CALC U LATI O N S [L GROUP B B B B DTALS 4.0 9._..._...,.._.. .00% COM POSITE AREA CN 243 _.,....__.....2T5...._ ..__......... ... .. __.._._.._......_._..._,_...._. _.._.284 67 TE: COMPOSITE CN VALUE USES BASE CN _UES WEIGHTED 71 % TYPE B AND 37% TYPE C DATE MAY 28, 2019 SCALE 1 "=60' 441H op KURT M. GL4ECKNER y Uc. No. 005649 xMAL �t RIM 18-013-00 DWG. NAME SCALE IN FEET 1 "=60' O I A= MAGNETIC MERIDIAN 62 61 61 60 6 59 59 58 52 51 51 50 049 49 48 48 47 47 a 45 1+00 N 3+00 4+00 5+00 6+00 r: 7+00 REVISIONS JULY 161 2019 DATE MAY 28, 2019 SCALE N/A KURT M. GLOECKNER �. Uc. No. 005649 1; `1,, , x�� t JOB NUMBER 18-013-00 DWG. NAM E �G 0�p tK y� �G SHEET ��° � of 10 19 3 ,3 I snurm: war Roadera ar dp-Standards- Plate. 3.364, ^A�SOILSTABILIZATION BLANKET/MATTING TREATMENT - 2 (VDOT STD. EC-3) VESCH STD. 3.36 LEVEL SPREADER PERSPECTIVE VIEW NOTE,4" TEMF'ORR►RY WW.S., SWALE. M.Q $PREADER DITCH MAST REC�E TE MRO Y T �4 aEEdif�G ItM4#��i?IA. id�� �fi"fER I��TAk»k.,A � . LEVEL SPREADER (TEMPORARY E&S VESCH STD. 3.21 (FIGURE 2-1) 1992 3.36 TI.WIPEi3Et1' P'R*R. TQ. LAYING 7Q' .w Ar.� DOE BERM NT'AW'SL ANGLE TRENC 1 9 mAIV) LOPE LI I II N G TCP L.O I ,.I KI N G CUT or: . WETSLOP. +�T:�7.L (DR 1 SLOP.E) 7EATMENI -- 4hYPft?PLYt 2. NQN W.y+EN Q:EQTEXTli9' F GL TRFATMENT — 2 R 9401�1i... flEfltl�a 7RF�4TM NT - 2) AtR . ,R Or pgtT_QM 4F FILL $LQPE vQrTQm POTTOM OF OUT' SLOPE Source: vnor aoaa ,ne s i9ec,Lei,ro air,-s ,,,) SOIL STABILIZATION BLANKET/MATTING TREATMENT - 2 (VDOT STD. EC-3) VESCH STD. 336 Alb6mdrte C0u4ty D6:4 t Standards m8nuat En neenh L Y s` J, PAVED CONSTRUCTION ENTRANCE DETAIL C'c�mn�r#�ri :knit ALB CO DESIGN STANDARDS MANUAL DD DIVERSION DIKE BLOCK AND GRAVEL CURB INLET SEDIMENT FILTER VESCH STD. 3.09 De �r m�r�t � i Comm L Q�tiel rn nL 1 h . p }; p . , #r c t ► ; ev rd Dwir :s- ►u l } f.Qr !IP : t _ 5 * ,. .. , r. 7 s ` h ,: 'c l in .is a: p t ,cif ivm_vm tic n r uir+~ ari c�a�n�tru�:t on xc � �rcl dra in��, Fc'r stc�zrrwatr failitrlsreerence`atr �'rct�cf�n Crdtan 1?-.42. It is : t str�ccctrr�tr cvt-cl rc �l�irtg Vic:. p qq� 7 r �zn the , t a r. Pler s .dt� o p �► cue des �ft� iw ,* s� ii�� cr str � �. n re co �raW-0,����: A►. stged ard,datd parofessional..:eal Oft1� prrtr� .nsnr sir s,tF�rr. Thy nar><le and address; cif t fir r atYd ncti�rdual prep►rtn tl�etv�rtsn the t,tle.;ct, � ` .4o cc n tructecl tacat,i n fall itcanS a aoeiated.wltkl,each fac,rll y, an ;the j:n peIq*gn.records tq v�erlf pt�t c�perxtrtsx�n, rt�ltrla[sl��it�stlattcrt, filmts tal>d.; bt nct lmtd t? the f�la.wa Ir peci cart +e+a�ds and p>���t.4 -a hs � r pips trench s,; rttl ddip �n�aucl .n� un�d;erdra�n�. p►e I sp+�et��n fir at y paps v�=h eh are axnt act thl!.or v ew ble, t Uatcd i�aca�trlth Leo-eerdines,. ,; ' .e �d l ara >r s ge. A4lrea 'irin�aps frar ,Ihe dr,, in.�,ig,e area Cre�ile i; acid i6r dr.<ii.rtn 'tl the lac line . . C��tr��t pk�yS. Iml:;a0d:totra�rah��.su��rye� sir al.Loa him s(r t ut s, �`��4d sh,0u,1d.iri*.tt�cie::�u suirve of thy pr; d t c ttot�z SCl vey : hciula �er :ly pe%in volu. rTe are<por c ensign.:'Corxec.;I. ons x ay be �re,qu eci lQr alteratiQttsrsant the �te�l�;:n, f'!AP4,,I0c;40-on ,agdjype, 7. ns and era ile nr::ail culvec s 1' ,. �a�ers 'V4�e�rs.an.� 0raina a Strigoures - pis 'ta tt e :.a I F: P Iltstailed type c f.ciraina 5trnct e, cul eTtlp: pe, s de, �reirs, marer�alsa inlets orend treatmen. (sj t Let op 0 protectton, afignik.t.1t and .Li1vert e10Vat�o-W Ca 1k -ared . 0 �estgg, 8 Q:an1pu l#loftsl �t � iy s� r fea xt dev.�.ait� s frl °a d� i�,a, provii:1e.scal d �- Inpulat ons.:verifyingimat th. ' afi-.k�ui It c:anditic xr t s in iv 1. r r r l eikter t inti ,design, ., it i -, f � p� y the l c,nstra Led l atio cif: �tll dil h li d h i �tiels, "inclvoiing typi ,all p.1. ►rtec( as � nt. v��itb clew h�41 ref eTtc w lah le t,.: F, �.ililies asld dr WITI. 11'tIJ� tie .vVtthtrt p14gpd e,asetl pint , Previde c to � f r c tie dc? tt aettt x 11. Q arc raal, a Qr c tier safety �r+�v i+� i spt y tlae c:p€ strpetec `lacatign.iod'gill safety pr4v siarrs, fet><ce5:, ardrail, ncl, in lie types den zb and pf'tied end, treat net ,-compared to igm. 12, K terial layers — W 01ter tnedint slQri ;i�t e , ss nd [avers lC yw�iys:anti.cor s mint l verified as.tc) rna1Xr�at type;;:��ne;depth, [��I>�de;�r�.sp+tiein repc.rt,,,brtn Or tet:�t reportsu1d.«�4tr�al.s (.@rtifIGa`1tlutlS.. �1()ttlCer mtwdlA tnu t be an app vved itat ItliX. l Acemss rOa�cls ;h � F luc�atic n .rf` ac c!4-s r � cl, , u t4zce r� to entiraiq gpi etc,.4 applicable, 14. C-ompalction reparts.a requ red'ttu verity till compact �n its dan k. 1 . Mangfa Curers e.ertif cati ns for prOpr etaly Bllilf'' ec rtify'tr►g. raper tnstatlata.c n ,anci'f ltictiotlita , CONSTRUCTION RECORD DRAWINGS REQUIREMENTS ALBEMARLE COUNTY Source: Va..DS1NC ro P) OUTLET PROTECTION VESCH STD. 3.18 REVISIONS JULY 16, 2019 3.18 DATE MAY 28, 2019 SCALE 1 "=20' ��Z,T H OF !+ v RT M. GLOEOCNER y Uc. No. 005649 �&`hc,!`AJ xQVAL Vt;A w z �a � o W � (2) In Cfl � C� C\2 cf) wQ (7—)Q wz q cf) Z W 0 z z 0 �­I cf) �_4 o� E" w z 0 JOB NUMBER 18-013-00 DWG. NAM E �G GGP R9ate.3.1Fi-1 !�`C� .r��c? � c�N SHEET 8 OF10 Vkrgi4ii StOrinWA,ter..iN,I;w,nake.meiit:Han400*qk� Chaptejr,9 J Wy 2101 3 . . - - I � I . �.... I I . . .1 I _ . I I 07C.15.0-WET PONPP.4 Q4M CHECKLIST I _. .-I � � � . ,� . .1 ­ .11 '__ .11.'. - I tos I pe,qtjoh, vate .�­ . �. � .. ­ . 1. . I—. I ' ' . Project . Site. Plap/Perm!0 - .. umoe.� .1 - III." .. I I—, I � ­ I . ­.- 1. .. 1 �... I . IL: �"It �­ .. 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I d �i dparty.mark. eboun anes; . . I .%,. . . -, '' .,Prbiess�16n;Il .( - ". ­�. . and p ,�rti�ps � _1 - . I � (r.o6tinue-d) -1 11 . . ,.. �tuctLdes, � . 011he'lecewing pervious � . � 11 - , 64� . aroa,,�,as,ned. . . . ... , 1he.1606M.r.) 7. I 1. - . Iv -$Aty, I§Igna�e '. I I . P ldi� SAMe nt,)0011ble rov . I q I m ;oWnef or I ... , I .1 I 11 .. � � . .1.. - I aaeq(,1-a101"` ,. . ,.-..' � .. saifety..Signagq,� -, .. . . - I . I I I profe*4100*1 I., . . . I � I . WET POND PERIODIC MAINTENANCE INSPECTION SCHEDULE I REF: VA SWM HANDBOOK - CHAPTER 9 (PAGES 9-C-47 THRU 9-C-51) PIPE ANCHOR DETAIL VDOT ROAD AND BRIDGE STANDARD PI-1 . . : I � � � I . %�.­­­­­­­- � 1. .. � I �­. ­­ I I . I - I ". I... � I . . . . ��W.,1.32�D : I ___ ...... _1__.._..__ . . � . I .1. . . � 1, . � '' 1;­ 9 F , P. . SITE. SPECWIC SEEDINO. MIXTURE, OR.J. 11EDMONT ARE* I I I . . .,.. ­ � . . I . . I Total Lb$. . 1. 1, ; . I I - I I � Pe .&� . I I . . I I . � � ., M.14imu .iCarc 'Lawn, ....- . . I .. I , .�.Commcr W:o Residential C11, ''.. r I I 11� -1 � 175-200 1�s, �. . ..: ...." I I . . . - . � , mu.c�y:31,orTii f7 I -C , . r Type� Tallfe�cu - Ko. I �.. I � - I . I . - 1. 11 95-1100% I - �. I 1. I . I - ­ I I , - - �d , ennial- Ryograss - Im Arove, Pe-r . I . _P ,� 0_ I ., 5 t7o .. 1. I . I—. , :K6_6(u.�k - _'s.s . ...y Blulegra I.. ' , ­ . . 0-5% ., 1: � H ig- ` h4-Maintananov, � LaWn 1 I P. . . .1 . . 1. � .1 Z.00_Z50 tbs. - .1 . ... � I - )�-entu �OtorTutf- , .eT-411 . "Foscue . � I ''I"... 11 � - Typ., I . f00%: I . . I � ':.General Slope (3:4 or I I ess), ', . . - I.. 1. I I . . . � I - Kentatky 31. Fescue , I I 128 tbs, - I , I - :R dd. Top 0- rass � . , Z tbs" ­I I I -1 ,$easonal Nurse Crop. -A I - I 2.0 lbs. _. . �x ­ '150 lbs . � , . I . ­ .1 . - : � .LA)w Maintenance. Slope (Stee-per'.1han JJ) I . � - m . - ­_­ � i - . . 1. . 11 K ntuc 3i F I escu - iQ$,,Ibs, .,, .1-.1­4 1, ., '.. ­:� 1. I ''.. . - � ' , . � . R,''.ed- Top Grass 2- Ibs. 1.� � I - soasp]W N4tse, CtQp 20 lbs. . I—. � . I.. " C r I w vetch " 20 Lbs. .. o n . 11 11 , . . . 150 tbs, . I . I � I *E�5 - * Use �easotial mitse crop 'in a", Qrdonc;�. with s,eed" daics _,gatcd �elowa. I . 1. �. I .. . ­ I . . Mg, , . ­_­ - . . 1. . F e. . . h A 61 I ....m.....,........ AnnuatRive '. �1744q: 1 ot h. lhto,u 9 I �.,. I . I I - � i - , , _ � I I ­ . V__. I . . . .� I .11 . . I . . M' lstthrough.Au' 45"th 4 , ­ . _ ay - , - � gu% , , . . 4 i . . I ,. 0" * 4, & *.� k . . 4 . . . FoxitallMillet I � .. I . I I _. " . 11 I 1. . I , AU , gus th tb'mp� 0iipto'',her I I ... . , . � - !''. . -v .�� ......... Annual Rye - . � � ­__ - . ­ � 1, I .1,1� , I ­ I .1 - ­ � � . I 1. , , . I 15,th ,I ., �. 4 . ­,,.,..,,,,,­ Winte,rRye I No OA'bet Lthrough F�brggy ', � I ­19'.­­ . I , . I .. . . � . . I - � - I �,�t Substitptp ,.S4�rjc.p. Iespede; for Crow vet,ob past of Fa mville, Va, (May, .... � '', za I -A - �;� �� .'. ..:r , � I - .11 ath �, - , _ � , . - I I I—. �: 1. iqe 1. I .1 � I., r pe I ri , ' d I r*'C..,'% I I rpugh $eptp,mbor use. hulled 'SeT' 4, all b,t.he use Unbutled, Se i V�Q/4 I , . .1 �. I I I ­ . I.— _: , : I ­ . I I.: I I I 1� - 11�_. - , I I I. I.' .. . I .: I.. , ... I I Q s., ... . I � . , �.ti . , .1 I ,egume , lfflatpeajs_ip�ed in 110 of Crownvetch� increowrate 9 30 lb$,/acre, All 1. � I..- - . I ....� - ­ . 1, .� �_ ,. � . , � ''. I .­_ I ­­ I ...1 � _,,0,.,._ . . m ' I"'. � i �' , . e . P Q . I I 11, � 1. I I -;W -' eping � 1, vqi�iis in.,Ay be 4d.dod to any, stone .s po, pg �6. r pe�.rly inoc6lated. .. e Lo : - 1. . - - .1 � ­. I I - - . . - ' . ..%.,* � I- : � I .., , t.. ;.�,,, :... . - .. , � ,X ' :A. el ­',vl_'_:: � __ �', -, a 0 lbs",/aict 4 � ' " - ­1 I " , . � �or ow-maititenance tnix Ourl' �' va � ' 11 e A ' _'er i s- d,d 1.0-2 .. .n� ,_ rmer Is P, , P e I 6 - . . . . . ,w ,,, ing I I I I . I I . I I I _.�A � I . .. rnmes. pS)PERMANENT SPEEDING SPECFICATIONS REF: VIA E AND S HANDBOOK (SPEC 3.32) . REVISIONS JULY 16, 2019 SECTION:81. C0N1s-rR.VC'r_1QN _­' ­­_­ � ­ I.., � ­ .1 - . I I 11. 1. : . p III - ­ J ' �-&L Construdion -Sequence I , ''... 1. t "'. ,­1 I., I ,.. ­ , 1 0;1 , 1r.b,,,,$1,P,,r,,.1 TJ o,fol '' - - -.11; - �411_�qfts,JN� ib - .a .. 0, _ I I lowing.As a-.37p in,.,s q , oT ,, "I. . ­ , , � i­ � .- - , 401qq,, 9 i r . ly. i!h sta I I t , . .b I I I . �­,� . '' . . - ,,.� P _ -, ,Nyp. p , 4y, . el . . , 1­11-- ,; ­ .. I p, I I . " , _ _ - I 11 �.. - - , . _1i , !_ ifi 5" , po) moo�fw.o to refloct --4i,ffq , $;- te c,00 19-ji o , I ,'-s.tKot ,ity0d . 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No. 005649 ' - - "" '; ;!CWAL ' i�g �4 �� _!:� 1_� 4 <� 154 �,,,,,I,I,IIIIII,� x > <� >-; E-4 U z �Z) U 0 �4 C-) 1 1 P4 �4 X LO 9� �� P4 Q0 m C\11.2 Cf) i._4 E___q l!"'I"""""I"I"I <� ZE-IIIIII-1 F4 4:� (:::� IIIIIIIIIIIII"I"""'I"I (2) r-) i:4 Z Cf) <� (2) Cn z �4 <� E___q 0 z z 0 i,-,,II,,,,,,,,,,,,,I,i M �_4 (:) 0 Q� 12� E---q F4 Z 0 U 18-013-00 DWG. NAM E . / WET POND TYPICAL SEQUENCE OF CONSTRUCTION AP L / 0 INSPECTION NOTES REF: VA DEQ DESIGN SPECIFICATION NO 14 WET POND (SECTIONS 8.1 AND 8.2) ,C-) IR / N �# �� IV (V I I � �,, A"�-- �� \ I C� 0 <_� -) I ,_ . , / / ��\� �� .//,�) , D%�Sej /C� 0 \C� :,(\, , �, %: � / 1�; '. 1k (T ,-. , �3 '4� �qj 1+1 <�� SHEET ( I __ r­\i-,11.1 X OF 10 EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THE PURPOSE OF THIS PLAN IS TO DEMOLISH AN EXISTING BARN AND CONSTRUCT A NEW DWELLING IN APPROXIMATELY THE SAME LOCATION. ACCESS TO THE HOUSE IS FROM DECCA LANE AT THE NORTHERN MOST POINT OF THE PROPERTY VIA AN EXISTING DRIVEWAY THAT RUNS ALONG A RIDGE AT THE NORTHEASTERN SITE BOUNDARY. TO CREATE THE FILL NEEDED FOR THE PROPOSED DWELLING, THE CONTRACTOR WILL EXCAVATE MATERIAL AT THE EXISTING WET POND LOCATED DOWNHILL TO THE SOUTHEAST OF THE NEW DWELLING. WITH THE EXCAVATION, THE POND WILL ALSO BE RE -GRADED AND RE -SHAPED TO BE MORE AESTHETICALLY PLEASING AND WILL PROVIDE WATER QUANTITY CONTROL FOR A 6,406-SF INCREASE IN IMPERVIOUS AREA. REFER TO STORMWATER MANAGEMENT NARRATIVE SECTION OF THIS NARRATIVE. THE OWNER WILL DEDICATE A FOREST/OPEN SPACE EASEMENT ACROSS A WOODED PORTION OF THE WATER PROTECTION ORDINANCE BUFFER LOCATED AT THE SOUTHEAST CORNER OF THE SITE IN ORDER TO MEET THE WATER QUALITY CONTROL REQUIREMENTS FOR THE PROPOSED INCREASE IN IMPERVIOUS AREA. EXISTING CONDITIONS THE PROPERTY IS CURRENTLY DEVELOPED WITH A BARN, OUTBUILDINGS, MEADOWS, AND VARIOUS DIRT AND GRAVEL TRAVELWAYS. THE SITE IS MOSTLY CLEARED PASTURE AREA WITH TREES ALONG THE SITE PERIMETER, THERE ARE ALSO SEVERAL AREAS OF TREE GROUPINGS LOCATED ACROSS THE SITE. SITE HAS A RIDGE ALONG THE NORTHERN EDGE OF THE SITE AND RUNOFF FLOWS VIA 15% TO 25% SLOPES OFF THE RIDGE TOWARDS THE WEST TO A TRIBUTARY OF MECHUMS RIVER AND TOWARDS THE SOUTH TO THE MAIN BRANCH OF MECHUMS RIVER, WHICH RUNS ALONG THE SOUTHERN SITE PERIMETER. THE 100-YEAR FLOODPLAIN AND WATER PROTECTION ORDINANCE BUFFER ARE CONTIGUOUS AND LOCATED ALONG THE SOUTHERN SITE BOUNDARY. ADJACENT AREAS THE SITE IS BORDERED BY ADJACENT RURAL PROPERTY ON ALL SIDES. DECCA LANE RUNS ALONG THE WESTERN EDGE OF THE PROPERTY. MECHUMS RIVER BORDERS THE SITE ALONG THE SOUTHERN EDGE AND FLOWS TOWARDS THE EAST. SOIL DESCRIPTIONS THE SITE SOILS ARE CHARACTERIZED BY ALBEMARLE, CULPEPER AND TURBEVIILLE SOILS. THESE SOILS ARE RELATIVELY WELL -DRAINED AND ARE SANDY/LOAMY. THE CONTRACTOR SHOULD ENSURE THAT ANY EXCAVATED MATERIALS USED TO RECONSTRUCT THE POND EMBANKMENT HAVE ADEQUATE CLAY CONTENT AS DETERMINED BY A GEOTECHNICAL ENGINEER. CRITICAL AREAS THERE ARE AREAS OF STEEP SLOPES ON THE PROPERTY AS SHOWN ON ALBEMARLE COUNTY GIS. THE GRADING PLAN HAS BEEN DESIGNED TO AVOID DISTURBANCE OF THE COUNTY -DEFINED STEEP SLOPES. EROSION AND SEDIMENT CONTROL MEASURES ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE MINIMUM STANDARDS AND SPECIFICATIONS IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK UNLESS OTHERWISE DIRECTED BY THE ALBEMARLE COUNTY INSPECTIONS DEPARTMENT. THE FOLLOWING EROSION AND SEDIMENT CONTROL PRACTICES (VESCHB REFERENCE NUMBER INCLUDED) MAY BE IMPLEMENTED WITH THIS PLAN AND IS NOT AN EXHAUSTIVE LIST: VESCH REFERENCE# 3.01 - SAFETY FENCE (SAF) A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. 3.02 - TEMPORARY CONSTRUCTION ENTRANCE (CE) A CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT THE ENTRANCE OF THE PROJECT SITE TO PROVIDE A MEANS OF REMOVING SEDIMENT FROM THE 11RES OF CONSTRUCTION VEHICLES LEAVING THE WORK SITE. THE CONTRACTOR SHALL REMOVE ANY MUD FROM THE EXISTING ROAD SURFACE BY MEANS OF SWEEPING AND SHOVELING, IN THE EVENT THE WASH AREA IS NOT ADEQUATE IN SEDIMENT REMOVAL. 3.03 - CONSTRUCTION ROAD STABILIZATION (CRS) THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ONSITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER GRADING. 3.05 - SILT FENCE (SF) SILT FENCE IS TYPICALLY INSTALLED AS A FIRST STEP IN CONSTRUCTION ACTIVITIES. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. 3.07 - INLET PROTECTION (IP) A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDMENT AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET TO MINIMIZE SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. 3.09 - DIVERSION DIKE (DD) A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED RIGHT-OF-WAY AND SIMILAR SLOPING AREAS. LOCATION AND DETAILS OF THE RIGHT OF WAY DIVERSION ARE SHOWN ON THE PLANS. 3.14 - TEMPORARY SEDIMENT BASIN (SB) A TEMPORARY SEDIMENT BASIN WILL BE INSTALLED BEFORE SITE GRADING BEGINS, FOR THE PURPOSE OF DETAINING SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS. A SEDIMENT BASIN CONSTRUCTED WITH BLOCK D2 -PHASE ONE WORK IS EXISTING AND IS LOCATED ON PHASE TWO. 3.21 - TEMPORARY LEVEL SPREADER AN OUTLET FOR DIKES AND DIVERSIONS CONSISTING OF AN EXCAVATED DEPRESSION CONSTRUCTED AT ZERO GRADE ACROSS A SLOPE. 3.31 - TEMPORARY SEEDING (TS) TO THE MAXIMUM EXTENT POSSIBLE, TEMPORARY SEEDING SHALL BE APPLIED TO DENUDED AREAS THAT REMAIN DORMANT FOR 7 DAYS. SEEDED AREAS SHALL BE LIMED WHEN NECESSARY AT A RATE OF 2 TONS/ACRE, AND FERTILIZED AT A RATE OF 600 LBS/ACRE OF 10-20-10 (14 LBS. PER 1,000 SQUARE FEET) OR EQUIVALENT. CONTRACTOR SHALL SELECT TEMPORARY SEEDING PLANT MATERIALS FROM TABLE 3.31-B OR C FROM THE VESCH. 3.32 - PERMANENT SEEDING (PS) A PERMANENT VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN 7 DAYS OF BEING BROUGHT TO FINAL GRADE AND THAT WILL NOT BE PAVED OR OTHERWISE BUILT UPON. CONTRACTOR TO SELECT THE PERMANENT SEEDING MIXTURE IN ACCORDANCE WITH THE SPECIFICATIONS IN THE VESCH. 3.35 - MULCHING (MU) ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS. STRAW MULCH SHALL BE APPLIED AT A RATE OF 1.5 TO 2 TONS/ACRE. OTHER ALTERNATIVES MAY BE SELECTED FORM TABLE 3.35-A OF THE VESCH. EROSION AND SEDIMENT CONTROL MEASURES -MAINTENANCE 1. THE CONSTRUCTION ACTIVITY OPERATOR OR HIS DESIGNEE, SHALL INSPECT ALL EROSION AND SEDIMENT CONTROL DEVICES IN ACCORDANCE WITH THE SCHEDULE PROVIDED IN THE GENERAL CONSTRUCTION PERMIT. IT IS RECOMMENDED THAT DEVICES BE CHECKED EACH DAY AND CERTAINLY AFTER EACH RAIN EVENT, AND THAT REPAIRS ARE MADE IMMEDIATELY AND AREAS ARE RE -SEEDED AND MULCHED AS APPROPRIATE. 2. ALL SEDIMENT -TRAPPING DEVICES AND FENCES SHALL BE CLEANED OUT AT 50 PERCENT CAPACITY OR HEIGHT, AND SEDIMENT SHALL BE DISPOSED OF BY PUMPING INTO A SILT -SACK OR OTHER APPROVED MEANS. 3. GRAVEL OUTLETS SHALL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP AND BE CLEANED WHEN SEDIMENT IS VISIBLY CLOGGING THE VOID SPACES. 4. DIVERSIONS SHALL BE CHECKED TO ENSURE PROPER RE-ROUTING OF DRAINAGE. DAMAGES THAT INTERRUPT THE EFFECTIVE FUNCTIONING OF THE DIVERSION SHALL BE REPAIRED IMMEDIATELY. 5. ALL SEEDED AREAS SHALL BE INSPECTED REGULARLY TO ENSURE THAT A VEGETATIVE COVER IS BEING ESTABLISHED. IN THE EVENT THAT THE SEEDING DOES NOT TAKE, CONTRACTOR TO TROUBLESHOOT AND TAKE REMEDIAL ACTION UNTIL THE APPROPRIATE VEGETATIVE COVER IS ESTABLISHED. GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 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 SPECIFICATION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND CONTROL SEDIMENT 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. S. 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 FOR 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 7:00 AM TO 9:00 PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 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. CONSTRUCTION SEQUENCE ANTICIPATED START DATE: AUGUST 2019 ANTICIPATED COMPLETION DATE: JULY 2020 PHASE 1 WORK 1. INSTALL CONSTRUCTION ENTRANCE AS SHOWN ON PLAN. 2. INSTALL SILT FENCE AND DIVERSION DIKES IN THE LOCATIONS AS SHOWN ON THE PLAN. THE DIVERSION DIKES ARE TO BE UTILIZED AS CLEAN WATER DIVERSIONS TO DIRECT RUNOFF AWAY FROM THE EXISTING POND DURING POND EXPANSION. CONTRACTOR TO PROVIDE SEEDING IMMEDIATELY ON DIVERSION DIKES TO PROMOTE STABILIZATION AS SOON AS POSSIBLE. 3. PERFORM DEMOLITION OF BARN AND CLEAR AND GRUB DISTURBED AREA. 4. DO NOT INSTALL 8APVC DRAINAGE PIPE UNTIL POND RE -GRADING IS COMPLETED IN PHASE 2. 5. ONCE THE HOUSE AREA IS CLEARED AND GRUBBED, THE CONTRACTOR MAY PROCEED TO PHASE 2 CONSTRUCTION WITH THE APPROVAL OF THE COUNTY E+S INSPECTOR. PHASE 2 WORK 1. ENSURE DIVERSION DIKES DIVERTING UPSTREAM RUNOFF AROUND THE POND HAVE BEEN CONSTRUCTED, STABILIZED, AND ARE OPERATIONAL. 2. BEGIN POND EXCAVATION TO BUILD UP PAD FOR HOUSE CONSTRUCTION. 3. CONSTRUCT HOUSE AND POND, EXTENDING THE 8" PVC STORM DRAIN PIPE UP THE SLOPE TO THE FRENCH DRAIN ALONG THE HOUSE PERIMETER AND STUB THE PIPE. 4. ONCE POND HAS BEEN CONSTRUCTED AND STABILIZED, CONNECT 8"PVC STORM DRAIN PIPE TO FRENCH DRAIN. ` 5. COMPLETE THE REMAINING SITE CONSTRUCTION AND STABILIZE AREAS NOT TO BE PAVED OR BUILT UPON WITH PERMANENT SEEDING. 6. REMOVE THE TEMPORARY SEDIMENT CONTROL MEASURES ONLY AFTER ALL UPSTREAM AREAS HAVE BEEN PERMANENTLY STABILIZED AND PERMISSION IS GRANTED FROM THE COUNTY E+S INSPECTOR. EROSION AND SEDIMENT CONTROL PLAN MINIMUM STANDARDS (PER 9VAC25-840-40) 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN 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 FOR LONGER THAN 14 DAYS, OR 7 DAYS IF REQUESTED BY THE LOCAL INSPECTOR. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT ER01SION. 4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. 7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. 8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. 9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. 10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. 11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. 13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN AN` SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONERODIBLE MATERIAL SHALL BE PROVIDED. 14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. D. , MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER. F. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH. 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR 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 PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES. 18. 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 VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. 19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS. THE SITE COMPLIES WITH MS-19. STORMWATER MANAGEMENT NARRATIVE THE PROPOSED CONSTRUCTION OF A SINGLE-FAMILY DWELLING ON THE SUBJECT PROPERTY ENTAILS A DISTURBED AREA OF GREATER THAN 1 ACRE, WHICH REQUIRES THE APPROVAL OF A VIRGINIA STORMWATER MANAGEMENT PROGRAM (VSMP) PERMIT. THE PROPOSED CONSTRUCTION RESULTS IN A NET INCREASE IN IMPERVIOUS AREA OF 6,406-SF (0.15 AC.). IN ORDER TO MEET THE WATER QUANTITY AND QUALITY REQUIREMENTS, THE OWNER IS PROPOSING THE FOLLOWING: FLOOD CONTROL NARRATIVE THE MAJORITY OF THE NEW IMPERVIOUS AREA WHICH INCLUDES THE ROOFS OF THE NEW HOUSE AND GARAGE WILL CONNECT VIA ROOF DRAINS TO A PROPOSED PERIMETER FRENCH DRAIN ALONG THE WEST AND SOUTH SIDE OF THE HOUSE SITE. THE ROOF DRAINAGE ALONG WITH SOME OVERLAND FLOW THAT WILL BE INTERCEPTED BY THE FRENCH DRAIN WILL DRAIN VIA AN 8° PVC OUTFALL PIPE TO A WET POND. THE WET POND WILL PROVIDE ADEQUATE FLOOD CONTROL AS SHOWN BELOW. A SMALL PORTION OF THE NEW IMPERVIOUS AREA WILL FLOW VIA SHEET FLOW AS IT DOES TODAY. THE OVERALL QUANTITY OF RUNOFF FLOWING BY WAY OF SHEET FLOW IS BEING REDUCED DUE TO THE FRENCH DRAIN AND 8" PVC PIPE, WHICH DRAIN THE MAJORITY OF THE NEW NET IMPERVIOUS AREA. CALCULATIONS FOR FLOOD CONTROL: PROVISION OF A WET POND FACILITY THAT WILL SERVE TO PROVIDE THE REQUIRED STORMWATER DETENTION TO REDUCE THE PEAK FLOW FOLLOWING DEVELOPMENT TO BELOW PREDEVELOPMENT LEVELS. CURRENTLY, THERE IS AN EXISTING WET POND LOCATED DOWNSTREAM OF THE PROPOSED HOUSE SITE. THIS POND WILL BE RE -GRADED AS SHOWN. HYDROLOGY AND HYDRAULIC CALCULATIONS ATTACHED TO THE VSMP PLAN SUBMISSION INDICATE THE PROPOSED RE -GRADED POND WILL PROVIDE ADEQUATE STORMWATER DETENTION IN ACCORDANCE WITH THE FOLLOWING SUMMARY OF PRE AND POST -DEVELOPMENT PEAK FLOW RATES. 2-YEAR PREDEVELOPMENT PEAK FLOW = 1.42 CFS 10-YEAR PREDEVELOPMENT PEAK FLOW = 5.61 CFS 2-YEAR POSTDEVELOPMENT PEAK FLOW = 0.18 CFS (87% REDUCTION) 10-YEAR POSTDEVELOPMENT PEAK FLOW = 3.11 CFS (45% REDUCTION) OUTFALL FROM THE POND IS VIA AN OVERLAND SPILLWAY THAT CONNECTS TO RIP -RAP OUTLET PROTECTION. THE RIP -RAP OUTLET PROTECTION INCLUDES A PLUNGE POOL FOR THE RUNOFF TO SETTLE PRIOR TO DISCHARGING AS SHEET FLOW INTO THE 100-YEAR FLOODPLAIN VIA A LEVEL SPREADER. REFER TO SHEET 3 FOR DIMENSIONS OF OUTLET PROTECTION. CHANNEL PROTECTION NARRATIVE THE OUTFALL TO THE WET POND WILL FLOW VIA SHEET FLOW DIRECTLY INTO THE MECHUMS RIVER 100-YEAR FLOODPLAIN. THE CONTRIBUTING DRAINAGE AREA AT THE POINT OF OUTFALL IS GREATER THAN 100 TIMES THE SITE AREA, AND THEREFORE, NO ADDITIONAL ANALYSIS IS REQUIRED. ALSO, THE PORTION OF THE NEW IMPERVIOUS AREA THAT DOES NOT DRAIN TO THE WET POND WILL FLOW VIA SHEET FLOW AND NO FURTHER ANALYSIS IS REQUIRED. WATER QUALITY NARRATIVE IN ORDER TO PROVIDE WATER QUALITY FOR THE INCREASE IN IMPERVIOUS AREA, THE OWNER IS PROPOSING TO DEDICATE APPROXIMATELY 0.90 ACRES OF FOREST/OPEN SPACE EASEMENT. THIS DEDICATION WILL OFFSET THE REQUIRED PHOSPHORUS REDUCTION AS SHOWN VIA THE VRRM SPREADSHEET PROVIDED ON THIS SHEET. REVISIONS JULY 16, 2019 DATE MAY 28, 2019 SCALE N/A OF ci KURT M. GLOECKNER Lic. No. 005649 1 ;,tCWAL 18-013-00 DWG. NAM E �G CbCA h� tK GP �G ° SHEET 10 of 10