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Home My WebLink AboutNCC230867_Site Plan or Location Map_20230329WS/FC EROSION CONTROL NOTICE /0,. i \\i �\ I � J /111 r I �� II; ^ \ �\\\�\ \ 1\ \\\ \\ i o � \I PANS APPROVED FOR CONSTRUCTION 1 I \ 1_ ; ��` \\`� \ `-- \ \ I \ \ � r\ / I I \�1 / A / - _ \\ \ 11\l I I i� I I / / � '� - _�� \\ \ (( i This plan complies with Chapter 8, Section 4 - Erosion Control k/ \\ \ 1 / / / / \\ - - �\ \; I I of the Winston-Salem/Forsyth County Unified Development / \ \I {I 1 I , / , / \� - - _ _� - �, - o \ Ordinance. A printed set of the stamped/approved plans must / �/! I / � / / o / / / -::-,:�, 1, - =�. be kept on the construction site for reference when installing �/ l �l 1 '�I 111 l / / l l / __;\,\--; -a�� -�I - � ,-_ 11 / �/ I I I / / / / / � / , - \\ �;\, � \ \ \ _ - I required erosion control measures. - t ( 11 f i l / / -+�11 II -\-- ( ' I////I/ �I� III / / / /o / / *#/ / _ �\\\\�\_ -__ _ ` \--------- -k \ / \ I// / l l / l l ^ / / i _ _____- _� /-- __ / . lIl •Cu Ill / / 1. 1 / / / L \\\ - -_` �\ II�\ \ \ 1 \ , \ �-j_ atth�wo 03/16/2023 3:50:04 PM /-zz _ \ / I w I/I/ / , l �l / I / //l ('( (�( \�� '�_�-��-- �� I11 Illu \\\ \ / I \ "' �' I / / z I l / / B D IM(T i , �� - �� I� I I I I . \ / - - - - <I I I \� // N I J//////� / / � Is � �} / �/ �--t--_\ \� %_ �� II) i Ili l� ul�i II II \ o \\\ S/FC FLOODPLAIN ADMINISTRATOR NOTICE \ \ �,,� /// I I I � ,("( ( (l ( (( / ( / \ \--- `-� - 71 --�,\ I IIII II I /1 II. \\ \ I \ \III I --- -J ��///�// I l 1 I II I I II I I yJ \\\�-;;`----_\ \ IIIIIIilll�l IIIIt�l1I1 \ \ `-___` �ANSAPPROVEDFORCONSTRUCTION \I I I . /// I I \I I I I I 1 \ _1' 111 IIII II IIII11f r I I I \ \ / \ I I I // I I I I I \_ _� _ \ I I I I I I l i I I I 0 j/ I D I I\ /\ a R EP �MIT6 ` 1 I I I I I I r>J N I \ \ / \ I I 1 \ \ \ \ \ I I 1 I I I 1 I II I I I I I I �zq I 1 \ \ \ /\ \ \ \ TIC plies with Chapter 8, Section 1 - Floodway and 11 111 \I ,y ' ; I 1 1 I I 1 { \ \ \ ` \ \\ \ - - ` \ - ` / I I I I I I 1I I I I I I III r rr1 I I \ \\ \ _ - \ `� FloodW6y- a ulations of the Winston-Salem/Forsyth \Io �` I / II I \ {\ \��' { \ \\ \�\ 5\\\\\ \ \\ 11 \ \ \ - \ \ _ _ _ i I I 1 III 1 I i i i I I III , I r� I I \ ` \ O �- - - ` 11 \ - County Unified\4eve ment Ordinance. A printed set of the \ \ \ \ \ \ \ \ 111 I 11' IIII I I \ I �`` \� / \ � \\ \ ` ,/ i I { ��1 \ \ \ \ \ \ \ \ \ \ , \ �� - \ 1 11111 1111 11� I I I I I I 1 \ \ � _ _ � - / stamped/approve'd plans must be kept on the construction site / \)1 \ \ \ 1 \ \ \ \ \ \ �- �, \j c ♦ I I \ \i \ \ \ \ \ \ - - -' I 1 \ \ \ \\\ \\\ \ \\jI I \ \ � - - , / r - I for reference duMg construction. \ \ \ \ \, \ \ \ \ / 1 1 1 1 \ \ \ \l \ \ { \ I I \ 68' R/W ` � ` \ \ / -////�/ / / B 1 ��.. \ 'l \\ \ \,\ \\\\ \\ 1 \ \ \ III\ \\\\ \\\\\\ \\\ �I� o / \`\ \ { //// I 11 r. F� ��. \ \ \ \ \ \ \ \ ., \\ \ \ 1 I \\ \\ \\\ \ M /11 \ I- _ ---'- I /Imo. \ \ �\ \ III {\\ \ \\\ � , \ / \ / _ / 11 1 N„'i / ' \ / . \ I \ \ \ \ \ \ \ \ \ \ I I I { \ \\ \ \ \\ \ �\ \ \ \ \ % m�the)a/o - - -�� 03/16/2023 3:50:16 PM \ 111Iz1 / H I . \ ) \ \ \ \ \ -- \ \ \ \ . I I 1\ \\ \ \, \ \.\ \ / � - ----- I 1 �1 m 1 'F j.. I . lz/ \ I I I \ \ \ \ X. \ \ \ \ I I { \ \ \ \ \\ \ \ \ \ \ \ `\ \ \ - / \ 1 \\I 1. r. 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I.. I. I I / -- / I I / '\ / / I , I I /1 1 I I I 1 \ \ �n / -- 11) 11 I KMMEFa I I I 1 I \ .�l i /171 ..1 1. 'I l / \l 1 // / ' // // // I /l C // / I 1111 I I I \\ \- x�, /'' -11 PROPERTY OWNER: PARCEL ID NUMBER: A PORTION OF 6812-82-2274 ROBERT G. CARPENTER 156 FOX MEADOW LANE WINSTON SALEM, NC 27107 DEVELOPER: ISENHOUR HOMES 3411 HEALY DRIVE, SUITE A WINSTON SALEM, NC 27103 PHONE: (336) 345-1214 EMAIL: TODDISENHOUR@ISENHOURHOMES.COM ENGINEER: ALLIED DESIGN, INC. 4720 KESTER MILL ROAD WINSTON-SALEM, N.C. 27103 PHONE: (336) 765-2377 EMAIL: SCAUSEY@ALLIED-ENGSURV.COM THE INSIDE SLOPES OF THE SKIMMER SEDIMENT BASIN SHALL BE STABILIZED WITH NORTH AMERICAN GREEN S75 (STAPLE PATTERN D) EROSION CONTROL MATTING UPON COMPLETION OF CONSTRUCTION. EXISTING TREES/WOODS TO BE REMOVED TO LIMITS OF DISTURBANCE. EXISTING TREE TO BE REMOVED TO THE STUMP. NO STUMPS MAY BE REMOVED UNTIL STAGE 1 EROSION CONTROL MEASURES HAVE BEEN INSTALLED AND APPROVED BY EROSION CONTROL INSPECTOR. EXISTING SITE CONDITIONS ARE SHOWN ON THIS SHEET. REFER TO SHEET C1.1 FOR DETAILED INFORMATION ON DEMOLITION/REMOVAL REQUIREMENTS. STAGE 1 CONSTRUCTION SEQUENCE OBTAIN GRADING/EROSION CONTROL PERMIT AND PLAN APPROVAL FROM THE FORSYTH COUNTY INSPECTIONS DIVISION. 1P 2 SDDTHFO MODDV-08',F/� I R LN m MCI z1 4 %, z TIG EYE CT m SITE ooU`F✓9o'r-zN I a , IRONSTONE CT Z U Q V P FR/FgFR �� " 01V "D VICINITY MAP NOT TO SCALE KEY NOTES OA NEW TEMPORARY CONSTRUCTION ENTRANCE/EXIT OB NEW TEMPORARY SEDIMENT FENCE. GR O NEW TEMPORARY SEDIMENT FENCE WITH STONE OUTLET OD NEW TEMPORARY DIVERSION BERM. OE NEW TEMPORARY SKIMMER SEDIMENT BASIN. THE INSIDE SLOPES OF THE SKIMMER SEDIMENT BASIN SHALL BE STABILIZED WITH NORTH AMERICAN GREEN S75 EROSION CONTROL MATTING UPON COMPLETION OF CONSTRUCTION. O NEW COIR, JUTE OR BURLAP BAFFLES. ONEW TEMPORARY EMERGENCY SPILLWAY. OH NEW TEMPORARY 10'x10' CLASS "B" RIP RAP OUTLET STABILIZATION PAD. lO NEW TEMPORARY SKIMMER DEVICE. EXISTING TREESNVOODS TO BE REMOVED TO LIMITS OF DISTURBANCE. EXISTING TREE TO BE REMOVED TO THE STUMP. NO STUMPS MAY BE REMOVED UNTIL STAGE 1 EROSION CONTROL MEASURES HAVE BEEN INSTALLED AND APPROVED BY EROSION CONTROL INSPECTOR. \ I I 1 I I I I 1. / ...I . \ \ / I / / / / - - I I 1 11 I \ -0 `< - � - � 2. CONTRACTOR IS REQUIRED TO FILL OUT AND SUBMIT AN ELECTRONIC NOTICE / III D MENl1 I 1 l �.<.�.�. / \ \ / 1 / / / / / _ _ - I I \ \ m� r / I I I I l , I { \ / / / / I X - - - I / 1 I I I I I \CP #1 (MAG NAIL) j < OF INTENT (e-NOI) FORM. ALL CONTRUCTION ACTIVITIES ARE REQUIRED TO l/ II I BASIN 2 I \ \ \ . f. . .. \ \ \ \ / / / / / / / / / l / - I I I I I I I -0 c m / / .. - I I 1 \ I� $21,658.39' FOLLOW THE NEW NCG01 PERMIT. \ ///1 II I 1�►-- \ \\ C I �..j.... \ \ \ / / / / / / / / / / J / I I I Imo\ -0 C: �/ Y \ /' \ \ / - - - - - - - 1 \ �8 460..50; TEMPORARY SKIMMER // / I I I \� \ I 1 I <'I .. . \ \ f I l l / l 1 - / / I \\ \ { ` r \ \ \ I I / / / / I I I I I \ `\ NAD83/2011 \ \ c� SEDIMENT BASIN #1 DI�TURB D LIMI/fS / / X, � I \ \( ) � < - -' 3. CONTACT EROSION CONTROL INSPECTOR TO ESTABLISH A MANDATORY l l I/ 1 1 1 \ 1 I I �\ I \ I I 1 / I I I I l / // / / I j i 1 ` � /` I IBI I II \ \ . \--� \ - - I \\ I I I _ � i- � / / X / � X I I 1 I \ GGF: 0.99992685 r^ - - - - ' PRECONSTRUCTION CONFERENCE AND AN INSPECTION SCHEDULE. / / J I _ / / I _ / I I I I \ - (SIZED FOR STAGE 2) I 1 / I l / I / // \\ c ♦ I I I I 1�\ I I I 1 I �- / O / I / / I 1 1\ CB - DISTURBED AREA=1.30 AC I 1 I I / / / 1 ,/ \\ I I I { \ -.\1. \ \ \ / J I I / _ / / / , I I I 1 \ \ \ \ - -� - 4. THE CONTRACTOR SHALL CONDUCT SELF -INSPECTIONS OF THE EROSION AND / I I l / / I / I 1 // ' `\\ = I \ \ . -' \ \ "-ENCERe 1/ 1 I \ I I C / / X / I I I I I \\ \ SOP=751.72' �- SEDIMENT CONTROL MEASURES AND COMPLETE THE FOLLOWING COMBINED DRAINAGE AREA=1.30 AC / / / 1 � - - , � \ y I I I \ --.. \. _ X - - - - \ \ o \ \ I - I INV IN=74495_ _ TOP=748.95' REQ'D VOLUME=2,340 CF / / / / / / / I /', //� / \ \ I I \ \ / - - \ \ \ \ \ \ _ \ � I - I / / \ �`_ i I � I I \ B \ INV UT-744.71' \ INV IN=743.09' SELF -INSPECTION FORM FOUND ON THE DEMLR WEBSITE; Q10=CxIxA / / / I // / \ \ \ \ F � � \ \ \ _ \ r t I \`_ � 1 \ � { \ _ \ - - _ (http://deq.nc.gov/about/divisions/energy-mineral-land-resources/erosion-sediment-control/forms). (0.25x5.5 IN/HRx5.00 AC)-1.8 / / / l l / / I I I / I ///)-/_ / ® \{\ \\ I \ � / f - - - - - - - - -- - - - - - - \ �\ ISINJRB�R LIMI \ \ I '\� /- I \ \ \ - _ - - _ COMPLETE INSPECTIONS FORMS SHALL BE KEPT ON -SITE AND AVAILABLE FOR REQ'D SURFACE AREA=Q10x325= / / / I / �'/�/ -/ { \\ I \ \ \ \ / - - - - - - - - _ - -- \ \ \ \ \ O / I --- 1.8x325=585SF / / / / ,\ I I _ _ \ `so \ 2 I I I AREA- - // MH-S PERMITS BOX. SELF -INSPECTIONS FOR STABILITY AND FUNCTION OF EROSION \ \ \ \ / - SURFACE AREA LENGTH=173' / // / I I 1 I // �/ / \\ \\� \ \�� \ \ I. I I- / - - - - ` ", \ \ I C ' 1 I z - - - I` -4 = AND SEDIMENTATION CONTROL MEASURES ARE TO BE PERFORMED AT LEAST _ RIM 7�0�� / / / / / / // /// /// \\ \\\ �j \ \ \ \. . I I / \ \ 1 \ \ \\ \ \\ \\ \\ \ \ I I I , \ \ INV IN=742.65'. ONCE EVERY SEVEN CALENDAR DAYS AND WITHIN 24 HOURS OF EACH SURFACE AREA WIDTH-25' / // / / / / /// /I I \�\\ \-1 \ \ ...� . I I \ 0� � \ \ \ - � \ \ \ \ \ \ ' I IX / I / \ EX 6" DI VV/L / II WEIR LENGTH=8' / / // / / \\ 1 1 [k \ I o / o o a OWS PRE #11402 \N INV 0UT=742. RAINFALL EVENT OF GREATER THAN 0.5 INCH. ANY NEEDED REPAIRS SHALL BE / / / / / / / / - - - _ \\ l \ 1 \ - \, \ \ \ I < ( W BOTTOM OF BASIN=720.0 / / / / / // // /// / `- . _ \ 1 \ A\ \\\ \ \ / \ \ \ I I U oVENN X - \ - MADE IMMEDIATELY TO MAINTAIN MEASURES AS DESIGNED. ALL EROSION AND \ I I \ \ 1 - - \ 740- \ \ \ Z / \ SURFACE AREA=725.0 / // / \ / \ I I I / FENCE \ \ SEDIMENTATION CONTROL MEASURES SHALL BE MAINTAINED AS SPECIFIED IN / / 1 \ \ \ - \ \ _ / / I- \ TOP OF DAM=726.0 / / / / // / /// /// HI I / \ 11 �- �\ " \ \ \ \ \ \ \; - - ) / 1 - C I " / / , / ' \ - J�� E- - ]- J - - \ THE CONSTRUCTION DETAILS ON THIS PLAN. A RAIN GAUGE SHALL BE DEPTH OF STORAGE=5' / / / - // / / ,------ / 1 / 1 y.. \ .. \ \ \ \ 40 / / / I / / \TIGEREY ' I I I / _ / ! COURT ;� /- INSTALLED AT THE PROJECT SITE FOR MONITORING. / I - \ r, SURFACE AREA PROVIDED=585 SF / �, l / / // �- - \ I // /' \ \ \ \ 1 - _ \ � / I , / I I I 1 I I T - DIS RBED LIMITS/ / I I \ (50' PUBLICR1Wj - i� / , /, /� ,------- \ I I //. �. . .-\ \ \ \ \ �-- --11 � / / ) I I I o 1 / ' I IIl I CB \` I SURFACE AREA ELEVATION=721.18 \ 5. A COPY OF THE EROSION AND SEDIMENT CONTROL PERMIT, A HARD COPY OF ' �� - '� , - _ I / \ \ \ \ \ `� / / / I I / / / / I 1 I \ { TOP=751.74' \ / VOLUME PROVIDED=2,356 CF �, ,� , _ / \ \ \ \ / / / I x / , / �i\ I \ THE PLAN, AND ALL SELF -INSPECTION RECORDS MUST BE KEPT ON -SITE, %- _ �-� j / / ' - - - - - \ \ \\ { I \ \ \ \ \ \ \ / 0 1 1 I / I ' 1 1 INV IN=745.38' - - VOLUME ELEVATION=722.22 �%-`�� - - i / / / - - - \ \ \ \ \ \\ \ \ \ I \ \ \ ` - - - - 15 O J I / - 1 1 PREFERABLY IN A PERMITS BOX, AND ACCESSIBLE AT ALL TIMES FOR � 11 \ \ \ \ \ - ) / - / r I I I I / i ' / / 1 \ f I I I 1 INV OUT=745.32' MH-S I INSPECTION. 1.5" SKIMMER W/ 1.00" ORIFICE -�///'ri - _ \ \\\ / ..\ \ \ \ \ \ \ \ ---- -,' �/ --/ /' /' / � / / / / \ .■ III I \RIM=754.31' DEWATERING TIME=2.68DAYS v j ,/ /- \� \ \ \. \ \ \ \ \ \ r_-\ -- I- - / / / / / / I I INVOTJ�Z45.46' -j / - - _ _ \ \ \ \ C \ \ \ \ \ \ \ \ \ \ \ - � - - / / / I / - - I I CB - - - - - - 6. INSTALL THE CONSTRUCTION ENTRANCE AND SEDIMENT FENCE ALONG EDGE. --.0 �' / / /' z- - \ \ \ \ � \ \ / \ .. �. \ \ \ \ \ \ \ \ I - �- - - ' - , / I / / / / - I ✓ 1 III I \ TOP=752.03 01 / - - - -, // "- - - - - - \ \ \ \ \ g \ \ \ \IF I \ \ \ \ \ \\ \ \ \ I / - - - -' ` A /' -' � I I I I /INV OUT=745 J� - - 7. BEGIN CLEARING AND GRUBBING JUST ENOUGH TO ALLOW FOR INSTALLATION TEMPORARY SKIMMER - - � , - - \ \ \ \ �- \ \ \ \ / \.. � \ \ - - -' - - _ - - - � / , / � I I OF THE SEDIMENT SKIMMER BASINS AND SEDIMENT FENCE. STOCKPILE SEDIMENT BASIN #3 - - -' - - \ \ { \\ \ - - - - \ \ r\ 1 I \ \ \ \ \ \ I - - - - - - C - ' .�, - - - � { 1 I \ \ TOPSOIL ON -SITE WITHIN AREAS PROTECTED BY EROSION CONTROL (SIZED FOR STAGE 1) /'/ /- - i i � \ \ \ \ \ \\ \ \ \ \ \ \ - / - 1 _ 1.\ MEASURES FOR LATER DISTRIBUTION. / ' / �',' -'-'' /---\ \ \\ \ \ \ \---'`�` Q \ \ \ �'N \\ / �. \ \ \ \ \\ \ \\ 1 1 I /- -- --' '-' / '' /- -'- i' '-/ / -'' { \ {I 1 \`� \ DISTURBED AREA=0.80AC / ' \ \ � � \ \ / { \ / , I- - - - � 1 _ DRAINAGE AREA=0.80 AC / / / / - - / . ' - \ \ \ \ � �\ G \ \ / \ \ \ { I I - - - - - - - - / I \ \ { \ \ 8. THE SEDIMENT SKIMMER BASINS CAN NOW BE INSTALLED BEGINNING WITH / / / / / / - - - \ \ \ \ \ - - - \\ - \ \ / I ..1 \ \ \ I I I / / -' - - - - ' - - \ \✓ { \ \ \ REQ'D VOLUME=1,=C CF / / / / / / - - - \ \ \ \ \- - - - \\ \ R\ \ \ / I.. \ \ \ 1 I 1 I / -/ - - - - / - - - 1 \ \ \ THE REAR DAM ALONG WITH CORRESPONDING COMPONENTS. Q10=CxIxA i // / - - � \ \ \ \ 10 \ I I I I I / 1--� O� - - - \ \-- -_ / / / / ' -' \ \ �C`--�i� \ _ \ \ �\ \ \ I I I I 1 I I I I / / / - �I - ,,�? C - -' � - - �► . \ \ _ \\ (0.25x5.5 1N/HRx0.80 AC)=1.1 \ \ - ` \ 1 I I / - - - - \ _ - 9. ONCE THE DAM FOR THE SEDIMENT SKIMMER BASINS HAVE BEEN INSTALLED,/// / / / / � - - - \ 1 `\ \N \ \ I 1 I I I I I I / / - - - L / - - - I / \ \ ` REQ'D SURFACE AREA=Q10x325= / / // - / / - - - \ \ \ \ \ - - \ \ \ \ \\ y � I I I I I I I I / ' / -� - - - - - - �, r I \ \\ _ _ _ _ \ \ 11 THEN SEDIMENT FENCE SHOULD BE INSTALLED AT THE TOE OF SLOPE WITH 1.1x325=358 SF - / / / - / ^ \ TCMROR Rl�` SMER \ \ 1 \�\\\, \ \ j 1 I I I I I / / - - -' - - - I - - ' - ---' \ \ \ \ \ \ _ - THE OCCASIONAL SECTION OF SEDIMENT FENCE WITH STONE STABILIZATION. SURFACE AREA LENGTH=66' "-Z/ / /' -' // Z \ \ \ � EDIM NT-BASIN #1\ I I I I� \1 \ \\ \\\ \\ \ .... I I I 11 i I 1 I I I I I I / �- - -� , - - - -� - - - - - _ _ \ \ \\ � \1 `\ \ ` SURFACE AREA WIDTH=20' - , / / , - ,' ` \ \ \ I I \ \ \ \ \ �.... I .. I I I I I / -� - - _ - - - - - - - \ \ \ \ 10.ONCE THE SEDIMENT SKIMMER BASINS HAVE BEEN INSTALLED AS SHOWN, WEIR LENGTH=6' \ \ I \ I I I I 1 IST B D-eIrAITS � - _ - - - - - \ \ \ / / / / ' �' \ \ \ - - \ 1 I I � \ ; .. j.. 1 1 I I I I E � , C - - - -ice- - ' \ \ / \ \ \ \ - - - - - - THEN CONSTRUCTION OF DIVERSION DITCHES AND BERMS CAN BEGIN. BOTTOM OF BASIN=712.0 / / / \ \ � I I I C\ \ ... \ I I I I \ ( (`- _ ITS_--------- \. \ \ / / / / / i - \ \ \ \ 1 I I I \ { \ I { I \ C - - gED {�ll�- �,-- 11 _ - SURFACE AREA=714.0 / / / x / - \ \ \ \ _ \ I I \ \ "� � Ir\ � .. \ 1 r��7 .I.. \ \ (I( -� --pfiS�R- - \ \ _ , \ - - - - 11. BEGIN DEMOLITION OPERATIONS AS SHOWN ON SHEET C1.1 / / / i \ \ - \ I I i I- -\ \\\ I \ \ ((\((� ( /-' \ \ \ _ TOP OF DAM=715.0 / / / - \ \ I I I - \ / r { y I \ / \ \ \ \ - - - - - - DEPTH OF STORAGE=2' , / / � - \ \ \ \ 1 I I \ / � . I 1 { ` � . ,( -7 10 I I \ I � . \ \ \ � / / /, - \\ \ . \ \ \ \ \ I I III I I \ - -. -\ \ �\ \ \\ �/ � \r�\ \ l \ 1 I { ( � (N \ \ 1\ I \ \ \ { \ - \ _ \ \ \ \ \ _ - - ` _ 12. SEED EMBANKMENTS AND DISTURBED AREA OF BASINS, DITCHES, AND BERMS SURFACE AREA PROVIDED=531 SF / ' \ - \ 1 (� \ O \ - \ - UPON COMPLETION OF CONSTRUCTION. PERMANENT GROUNDCOVER SHALL / / , , , \ \ ) I I 1 { ✓ - \ \ \ f ( (1 ( \ \ \ \ \ \ \ _ \ \ - - \ \ \ - - _ SURFACE AREA ELEVATION=712.0 \ i - \\ \\ \ � \ �� I \ \ \ - - - - - - - - - \ - \ - _ BE ESTABLISHED IN 15 WORKING DAYS OR 90 CALENDAR DAYS, WHICHEVER IS ,/ // ,' \ \\ \ \ I / I I I �- - -- \\\ \ \\\ \\\ �. \ \ \ " \ \ D\ \C \ \ /---- \ � �--_\ _-- -- VOLUMEPROVIDED=1,443CF / / / - t \ \ \ \ \ I I { - - ' \ \ �\ \\\ \\\ \ \ \ ` �\ \ \ \ \ \ \ \ \ \ I \ / - _ \ \ - - - - - - - - SHORTER. HOWEVER, NPDES GROUNDCOVER REQUIREMENTS TAKE - \ \ \ I I - , \ \ \\� \ \\\ \� �\ \ \ \\\ \ \ \ \ \ \ \ \ VOLUME ELEVATION=713.83 / / / \ \ \ I I , / \ \ \\ \ \ �\ \ \ \ \ \ \ -_ \ �� --------_-� \ PRECEDENCE. I - _ \ _ - \ / / / ^ \ I I l �' \ \\ \ \\\ � � go ® \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ I \ - - - - - \ \ \ _ - - - _ - - - \ \ DEWATERING TIME=3.14 DAYS �\\ \ \ I �- \ \ \ \ \ \ \ \ \ \ _ - \ \ 13.TEMPORARY SEDIMENT BASINS TO REMAIN IN PLACE UNTIL THE SITE DRAINING \ I 1 \ - , \ � \\ \ \\ \� \\ D \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1 \ \ \. \ \ \ \ \\ \ \\i \ \ \ � \ \ \\ \ \ \ \ O \ \ \ \ \ \ _ / � \ \ \ TO THESE BASINS HAS BEEN SUFFICIENTLY STABILIZED. I // // /� \\ \\ "I \11 \ I \ \ \ \ /i 1*1 \\\\`\` \\ �\ \ �\ \\ \� \\ , \\\ \ � \ \ C \\ \ \ \ \ \ \ \ --- \ \ / / \\ -\\ \ \ \ I \ / \ \\ \ * \ ` \ \ \ \ \ \ \ \ \ \ \ / \ \ / \ \ \ I / / \\ �\� \ \ \ \ \ / , // \\ \\ \\`,,- �\- �� \ 1 \ I \ I 1 \I \ \ \ \ \ \ \ \ ` \ / / \ II \ / / \ \ \ / \ \ , --\ \ / \ I I I \ \ \ \ \ ,\ / -I \ \ \ \ / // _ `� \ \ \\\\\\ `� // '/`\� \\� \`\\\�\�� ` =- ��1 I I / I I I I I ) \ \ \ \ \\ \\ \\ \ \\ \\ \\ �-,\ \\\ I -_ - \ / / \ \ \ / _ \ \ \ / / / \ \_ \ �_ \� \ \�_ 11 �) / I I I , I I , I \ \ CJ \ . \ \ � I \ / i / I \ I I TEMPORARY SKIMMER t►y=191ILTA I=1►Ir 1G 1I01F.yj (SIZED FOR STAGE 1) DISTURBED AREA=7.34 AC DRAINAGE AREA=7.34 AC REQ'D VOLUME=13,212 CF Q10=CxIxA (0.25x5.5 IN/HRx7.34 AC)=10.1 REQ'D SURFACE AREA=Q10x325= 1 0. 1 x325=3,283 SF SURFACE AREA LENGTH=79' SURFACE AREA WIDTH=58' WEIR LENGTH=10' BOTTOM OF BASIN=716.0 SURFACE AREA=720.0 TOP OF DAM=721.0 DEPTH OF STORAGE=4' SURFACE AREA PROVIDED=3,284 SF SURFACE AREA ELEVATION=717.38 VOLUME PROVIDED=13,219 CF VOLUME ELEVATION=719.96 2.5" SKIMMER W/ 2.0" ORIFICE DEWATERING TIME=3.14 DAYS TEMPORARY SKIMMER SEDIMENT BASIN #4 (SIZED FOR STAGE 2) DISTURBED AREA=2.30 AC DRAINAGE AREA=2.30 AC REQ'D VOLUME=4,140 CF Q10=CxIxA (0.25x5.5 IN/HRx2.30 AC)=2.3 REQ'D SURFACE AREA=Q10x325= 2.3x325=1,040 SF SURFACE AREA LENGTH=66' SURFACE AREA WIDTH=20' WEIR LENGTH=6' BOTTOM OF BASIN=710.0 SURFACE AREA=714.0 TOP OF DAM=715.0 DEPTH OF STORAGE=4' SURFACE AREA PROVIDED=1,042 SF SURFACE AREA ELEVATION=710.60 VOLUME PROVIDED=4,151 CF VOLUME ELEVATION=713.03 1.75" SKIMMER W/ 1.25" ORIFICE DEWATERING TIME=3.25 DAYS GRAPHIC SCALE 60 0 30 60 120 " ( IN FEET ) 1 inch = 60 ft» 240 M 0 Z CV 57- Z_ U � J °� 0 0 E Z J Q � O ❖ C� 00 � II Z I = y - . (n Z M co J N ao � c 0 W W 2 W (0 � �<-(0= 76 Z W()cor-ca U) Z M (O � a) J Y0 a�� Q a dii�-< 0 -� FIRM LICENSE C-1891 LLI LUz 0. C)o J ° U W w � _ = 0 IY 0Y O _ � v z 0 � orf LU W LU LU �2- Co In � CU � Z 0 Q LL I- Z LU I- a0 m M >Q> 0 > N (n N N � M 0 O Z U m W Z m 0 W Y 0 iu 0 0- 0 0 w w z z w 0 U) U) a � � z O Z U z O C/) I-- o 0 � w � wo � U) U) w 0 0 Ir d U U O� Q� Q� O w w LL a a- m 0 0 w LU LU m cn L Ir Ir ro Ih w N_ N N Q 0 rn N 0 0 0 °I<Imlul SITE STAGE 1 EROSION CONTROL PLAN SHEET C2.2