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HomeMy WebLinkAboutWPO201500044 Plan - Stormwater 2015-08-29VICINITY MAP - scale- 1" = 2000' E&SC MEASURES THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE CE CONSTRUCTION ENTRANCE: E&SC STD. 3.02 SF SILT FENCE E&SC STD. 3.05 0 CULVERT INLET PROTECTION E&SC STD. 3.08 RR RIP RAP E&SC STD. 3.19 C9 ROCK CHECK DAM E&SC STD. 3.20 LS LEVEL SPREADER &SC STD. 3.21 TO TOPSOILING E&SC STD. 3.30 TS TEMPORARY SEEDING: E&SC STD. 3.31 PS PERMANENT SEEDING: E&SC STD. 3.32 ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. MULCHING E&SC STD. 3.35 EM SOIL STABILZATION BLANKETS & MATTING E&SC STD. 3.36 pC DUST CONTROL E&SC STD. 3.39 SOILS INFO: SOILS GROUP 4E - ASHE LOAM, 25 TO 45% SLOPES SOILS GROUP 14E - CHESTER LOAM, 25 TO 45% SLOPES SOILS GROUP 15E - CHESTER VERY STONY LOAM, 25 TO 45% SLOPES SOILS GROUP 36C - HAYESVILLE LOAM, 7 TO 15% SLOPES SOILS GROUP 38C - HAYESVILLE VERY STONY LOAM, 7 TO 15% SLOPES SOILS GROUP 38D - HAYESVILLE VERY STONY LOAM, 15 TO 25% SLOPES SOILS GROUP 56D - MYERSVILLE SILT LOAM, 15 TO 25% SLOPES SOILS GROUP 66D - PARKER VERY STONY LOAM, 15 TO 25% SLOPES ENERAL EROSION & SEDIMENT CONTROL NOTE 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYE GRASS OR KENTUCKY WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/1 OOSF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 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 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. STRUCTURAL MEASURES IS TO BE REPAIRED 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 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DIKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANSINCLUDING, BUT STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL NOT LIMITED TO, OFF-SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARRY EROSION INSPECTOR. CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PROTECTION ORDINANCE SECTION 17-204G.) PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE ((9) MONTHS AFTER THE DATE THE LAND 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-207B. ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. MAINTENANCE NOTES 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 IN GENERAL ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR. DEVICES SHALL BE MADE IMMEDIATELY. 1. THE INLET PROTECTION WILL BE CHECKED REGULARLY FOR SEDIMENT CLEANOUT. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 2. THE GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP WHICH WOULD PREVENT DRAINAGE. IF THE 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE IS CLOGGED BY SEDIMENT, IT SHALL BE REMOVED AND CLEANED OR REPLACED. OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. OF 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 3. THE SILT FENCE BARRIER WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF WAY TO THE TOP OF THE BARRIER. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 4. THE SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHALL BE 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00 FERTILIZED AND RESEEDED AS DETERMINED NECESSARY BY VIRGINIA TECH SITE DEVELOPMENT DEPARTMENT. AM TO 9:00 PM. CONSTRUCTION SEQUENCE 15. BORROW, FILL OR WASTE ACTIIVITY 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 1. CLEARLY MARK LIMITS OF WORK THEN INSTALL CONSTRUCTION ENTRANCE AND PERIMETER SILT FENCE. PUBLIC STREET BECAUSE O SLIDES SINKING OR COLLAPSE. ' 2. COMMENCE CLEARING AND GRUBBING ACTIVITY OF ROAD ALIGNMENT, DISPOSE OF DEBRIS APPROPRIATELY, UTILIZE EXISTING 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER STREAM CROSSIING BUT LIMIT CROSSING ACTIVITIES. 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. 3. ESTABLISH DRIVEWAY AND DRIVEWAY DITCH GRADES AND INSTALL BASE GRAVEL ON DRIVEWAY AND ROCK CHECK DAMS IN DITCHES. 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 RYE GRASS AND CEREAL WINTER RYE, OR IN 4. INSTALL RIP RAP APRONS AT DITCH TERMINATION POINTS. 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 5. INSTALL SPAN STRUCTURE FOR STREAM CROSSING. INSPECTOR. 6. INSTALL RIP RAP LINING IN ROAD DITCHES, APPLY EROSION CONTROL MATTING ON SIDE SLOPES. 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 7. INSTALL STREAM MITIGATION PLANTINGS AND APPLY PERMANENT SEEDING TO ALL OTHER DENUDED AREAS. APPLIED AT 1000LBS/ACRE AND CONSIST OF A 16-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 8. 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"(� 9 TO�RMVIiATER / / / / l l $ / I \ \ J SOIL 56C \ �\ - _ - _ \ --- --- � / / / / // r r NAGEME1rIT .-� / % b / \ \ \ \ \ 11 \ _- --- - / r / / ✓ / / `"/ / /i il / r' / r / / '' ACCi=SS EASEi fd4-` / / ' iiot f,%8 °�C / / j l / 1 \ -�- - - \ ✓ll / \ \ / S 0RM WATER \ \ ` \ '� __ ` \ \ \ \ _ - / / / / /� / ✓ /\r / / ( �, rMAG{EMENT \ \ \ ' \ __. \ \ \ \ \ / / / / / / /% / / / /\ i v / • / \ \ \ ,� \ / / / / _ / ,- / / / �„ STORMVGATER / / / / 1• /''{/' / i \ / �o'� / \ i o / / l \ \ \ / 4 \ \ \ ` __ / / .-- MANAGEMENT �CGES/ / / S,4t S, o T� OF / / Tb t AC SSS EASEMENT / \ \� \ _ - - \ \ �` / /„�/ / / / / FASEMENrt, TYPE / / /� 1 ,3 __ /- y _(411,3U0SFL / ° . \\ \\S \ \ \ \ \ \ \ - _ _ _ V, / / /1-11 l / -1 LEVEL 2E,,AEE13.3 / N i ' ... / / 100' SCREAM e l 3, A. = 255 A� ES \ \ \ \ \ \ \ \ \- \ \ ,_ / ' / / RIP SAP PiPR�QN-& 'I.3' LE / / ` �: ' . ,,1* � r / BUFFER, TYi' \JB° C = 53 / \ \ \ \ - _ \ • \. \ \ \ \ �..,, __ -. --- 'g"- -- -"' _ � ---. __ . __ �- / / / / / ,'' / / / �"\ \ / - - ' ' - . / / ' - - - \ \ \ \ \ `- -- -- - -- - / ' SPREAD�R'W/ RI�ID�L115 L RR / / / � / f .... - _ ` - - f �� / / / / / / / r / / / / , b \ ✓ y / '�' / / / $ T 43 IVJ1N. i \ CONSTRUCTIO \ \ \ \ \ I-, \ ~ - - _ - - __ / / / / / / / -{SEE T'1�PICAt DEYAIL)/ / / / \\ o ' ®' r r� ,P - o-�- aQ+oo z . o,aD w�� Q„o - 3 CFS / \ \ ENTRANCE CE / \y'` \ _ \\ __ - \, �- `>' -- - _ '_ / / / / / .,e; = / /'� / / / / feeS� / / ° 1° � y �� =- % 141'-16'' 1 GE SPAN OF \ O / \ \ \ \ - - \ \ -.. Q _ "'� - „-. f / / / / / / / / / % •�• • ..y, / / / / / / / A / i \ \ \ \ _ � � / ,i ✓ -,/ -•• l \,,., -'• � .- / + SITR�AM - OWN) OR DOUBLE \ \ �--. / \\ / -' -.- / / 11-1 / /L VEL SP/RI=ADF_R 1 �..., 11 ;_ SF- sem.. r , P `��C6' BOX C ERT \ \\ _ / / / 1 \ \ \ \ - _ ,.,. -- - / / /11.1 / ,,. • i� RAP AP�C�N &,13' LEV / / \ s °' .�- S_�F A , i 1 1 T - / / / \ - -m- - - .- ' _ � ` / / //' / SP�E`ADER W/RIGID ItCP LrS RR . / •v. / ° o / � 'i - -�� + \ \ � .. - jr - -� �. / / / _ - - / '' '" -- - ! - / / / / (SEE ICAL' DE L) / / / I / � p6 �`Q'CJ / / / k / tet+ / oo / /- - I ,M sF�sF / / 1 ' �sF-� '=T• / 1 / / • �5v i/ .,4-.-., _.- 7/ A / /r //, � / 11F _ X ✓ I I/ -r HIGHTOP DRIVE .�+ . . / 40' Private 0- 9 Right-of-ways on / / \ \ - - r / `. - / / / / D / / .\ / / / v o; cow ' F /_� i� ' ! �` asst was d cdnstrttcted. / -_--- - /1 _l �- __ / J ,wpo,i� / ,00 / y / __ c� o f /8 V1 / / - - _ ro - / / wQoyoo �-wPo-,00.�.--? -7-' i'^- / % °p ,C.�wPo- / / / - / Y LL / / y` i Do / r / \ \ _ Q =wPo-,00 - _ wPo- wPo,00 wPo-,00�i\ _ - / -' / / / / / / / / I ✓ / / / f__ l • •1-1 19 / / \ \ - - '`-, Po-&iw -� _ / �'/ / / / "I 1Z/ / / / / I / / / //�sE! 1 / 0. / ^ \1, Sff - -"i \ - 0 1 1 / / / / (\ _ _ ...- _ .\- / / / / / / / / / / / / r / / I / 8'(W) x 8'(L) x (D) / / / / 'A / ,/ N - , ' � ``'- rI i 1 a IQ + / / 1 \. - f _ . -' - __ ~' I-- -' __ / / / / / / / I 1 _ 1 _ 7� _l _ U _ _ LASS 1 RIP RAP - - - - - - `�' - -� O - - ^ - - - - m \ ` Jl 1/ I _ / / / / 57.7$' Y2=7'° 7"3 - + r / �- `1-1 / IS / OUTLET P OTECTIO 11\ ITS OF A ILT I ! / / / I�EGEL SPtEADJFR� / / I .� - - - - DISTURB N� P. Q FENCE ` / a\ \ / \ / / ✓ / �►, / / / / / / / RIP RAP APRON & 13' L / / SOIL 56 / / i ..- - ...f OP _ �{�. A v / .. � i ISIS„� \ / / I \ , / / / PR�ADER VI)/ RIGID LS I / \ �-... _ 2 5 F \� T'1�P.O +I I / / I !' / / \ / / .. / / / / -- - - - --SZREAM \ -~. SF / I6' _ / l I 1 / / / i / �, 1' �' 'f /'� / / / ( < (SE AIL) i 1 / / ...-- -- /` " \ -- . \ --- �-- -- - .- \ - - - / �' / 18,000 SF 100 STREAM __ l \ / / / / , '`,< ( \ \ \ RR I / ,� ' <_�- - .-:® _:�,.BUFFER_D�STURBANCE \ �\ \\ �` \ \ `•N \ \ I I ' / / / / r \ \ \ / - '''' 20 DOO-SF-X-2 = 40,.,000 SF- gi'S�CRES \ �.`- ) �� - - \\ \ i I I i\ \ / / / \ / / /_ -- . •! - \ _M[ TIGgTION REQUIR--MECIT = 0:31B XZr �Q X551 RA DWQOD ANS/OR \ i l \ .._` - - -. _ - _ ,� . \ \ \ \ / / / / / I I \ / / \ / - , .�-' - - - - PINE SEEDLiNGS Q"PPROXIMATE'LY,8 'X 8' GE�I Ti�R WI TREE TUIBES \ \ __ " - \ \ \ \ I I i / / / / I 1 / \ \ ) / - -_ - - .-- -- - - ' - -- \ \ `�. ._ i \ \ \ \ i / ' -- __ / I / \. / < --'E --- _ -_ _ _-_ . �- `-_ _---.._ - -_ -WAND �`__ \\ \ --:� \ \ \ \_ \ i \ _ _ _ _ �, L \ i \ \ \ \-- - - _ 1 ~' _ '' _ - -`-" �- ~ `� - -. y'� - - r - 40Q'St�eam �ZREAM �iJFFE1 1Clf1 ,GA�I,ON PLANT�INQS OCCUR 6NZO1 STr 1M,� \ I ( \ I \ I _ \\ \ - - - _ _ - / ' --- _ .. " - z '� '- - - •� _ ^ _ - - -►= - - C;ULVERT 2 - - _ - - - - _ - BufferiTylr. r=- - iroE{GFS �` \ \ I 1 \ \ \ \ \ \ \ \ �... _ . t .. - . ----- ... - - - \ - ~- - - - - _ . - _ i ~ R ! g86 -103,-I04, &- 4 Q5, WHICF1'AR WN \ - \ \ \ \ __ -_ \ \ `. �. -- -� - - - - __ - - - 2,3 CF 0 1.5 PIPE W/ - _ - _ - - B�?R NGFA C -EL,, �M \ \ \ \ - �E , � ED �'i\I - l STREAM \ / .. \ -- - - - - - - \ \; - - - -- - --_Bl1N[3t�RAIRML - \ \ \e, \ I _-... .` I f \ -_. \ \ \ \ \ \ _ 1 - \ \�~ - _ - - - - \ - - \ \ %- .., ,,c.,, . ,�-- -•... _ ` -, -� - - - - EIN S�GT10N - - -- - - - - -_ _ - - ` •- `\ \ -. \ \ \ \ \ \ - - _ - -- - - •- - _ - - -- - _ •_..._ -- -- - �SF�.,EXHIBTON §i4l % __ \ \ \ \ \ / \ \ \ _ _ ..._ _ _ -_... - - -- � / . __ _ \ \ \ \ - - -~ \ _..... _ ....- - - [NiV-.l N-69J�.00 --SOIL 4F -- l - - - _ - _ _ _\ `` - _ \ _ � _`� \ \ \ \ \ \ \ `* . `� 1 \ \\ � 1 \ - ` \11 ~_ \ - __ - '~ - -' -- - \ -- -- _._ __ `~ \ \ \ - - _ __ - - - - - -IAdV fliJL892._ 0 - - - - -- - _ - -_ __ __ _ _- \ \\ \ ". \ \ \ \ \ ` \ - _` \ _ `_- `\ \_`-.. _ \ \ -� ____---__ _-__----- _-------- ~- ~\ ao-,00 - - \ \ \ \__\ \ \ 4e r \ 8 \ •�.\ \ �^ \ \ _ �.y�p6i ®w waa�oo- "`u�m`t7�oe - \1va� \ \ \ \ -- 1-- _ - -._ ~ \ \\ --,. _ `- - \ \--- - - ---' ---.--_...---__ _ - \ \ \ 1;°'1°77* p \ \ \ \ \\ �` - \ --_. -^ __ \ �. \ - ` ..,.� -_. „�.. ._. \ \ \ `"� \ - - -- - - _ ..-- - p0-'10"D'e .-'", - -- -- - \ \ \ \ \ \ \ \ ~ \ \ �\ •`V � \\ \7 7\ , �.�(1 a t / \ \ . �• \ \ • .,�\ \ \ _- -- \ \ - \ \ __ \\ \ - .-----_-------- -..--- - _ _ ..,.!N -- __ --- - \ \ \ \ \ \ \\\ �r�\ \ \ \\\\ \\ \\ \\\\\\ \\ \" \ \ _. _ _ __ \ -_ \ - ` __ ` _. - \. - ._ wPo^°°�`_lNm Q \ \ -- \ \ \ \ \ \ \ \ �"`�a1 I.,�\ \\ \\ \ \ \\ \\\ \ \ ~ \ \-, \ 2 C Q, ® .0 g tj vy r-_ V 11 � '!•= u w L5 W Cu L u 0 4--J a! A Ci) s �r t � - Q) nu � 4-J m c u ' tv Czum -j„} W 2 !; � ALTH OF . Lj�c t �o �r . .y Ian . anklin ot Lic. No. 35326 W ,,,, 5- .2 7- t) ,�t 41 &sjONAL .�� z I IV F V_ t Q I a� UG �'O C 0 E �- Cr Eo °, - Q< 0 Cl TE I E o o UU.._. n mml � � w w O O 0 U O O Ld Lc•i O N 0 0 LO 6 M CD w 0- 0 rr V 2 I rA2 0. LL z 9 O 0 z D m I 0 00 O -1 U) z O W I_I_I 1020.0( 1010.0( 1000.01 990.0 980.01 970.0 960.0 950.0 940.0 930.0 920.0 910.( 900.( 890.( 880.( 870.( 860.( 0 0 0 0 T 9+7010+00 11+00 12+00 DRIVEWAY PROFILE. SCALE: H: 1 "=50', V: 1 "=25- 30, EASEMENT TAR & CHIP SURFACE - 8" VDOT #21A STONE - COMPACTED SUBGRADE DRIVEWAY TYPICAL SECTION 61 2' 3' LANE SHOULDER 2.0%--- 2:1 TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR COASTAL PLAIN AREA Total Lbs. Per Acre Minimum Care Lawn c - Commercial or Residential PLANTING DATES - Kentucky 31 or Turf -Type Tall Fescue 175-200 lbs. or - Common Bermudagrass * * 75 lbs. Hip -Maintenance Lawn r.F - Kentucky 31 or Turf -Type Tall Fescue 200-250 lbs. or Hybrid Bermudagrass (seed) * * 40 lbs. (unhulled) - or 30 lbs. (hulled) - Hybrid Bermudagrass (by other vegetative 60-100 establishment method, see Std. & Spec. 3.34) GERMAN MILLET General Slope or less'; - Kentucky 31 Fescue 128 lbs. - Red Top Grass 21bs. - ---- - - -- Q u ---- ------ - Common Bermudagrass * * 0-15 lbs. - ---- - - 20 lbs. - Sericea Lespedeza * * 20 lbs. 150 lbs. 10 _ --- ---�-- Foxtail Millet September, October through November 15th ...... Annual Rye November 16th through January ............... Winter Rye -_ periods, use unhulled seed. Weeping Lovegrass may be added to any slope or law - maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. 1- � 10 - I - ------ Q N / __ _ = - w m Cn II119 10 i "-" _ I CO w / / = � CD w w / 8 - -� - ( -- I I 7 _ = I ( EXISTING PROPOSE RADE GRAD / 6 - _ I PV STA: 12+70.00 PVI ELEV: K: 8.70 LVC: 50.00 881.08 P F1 j I STA: VI ELE K: 1 LVC: 14+00.0 : 891.4 .48 0.00 P �VI I STA: ELE K: LVC: 15+00.0 : 896.4 66 0.00 - NN- j J_ - FUTURE CO D TINU IVEW ION Y 115.70% 5 - - - i I = oo o -- ! I I O0 0 - O r- C14 ti O � M N - o - I 3 2 _=C) -- _= - _ o II ---d oo O N °Oo 00 O N 0) O Lo + Y `0 r N CO 00 rn N Co N rn _ = - == _ = Y mix �- LLI _- I -- uw a - Y aw w �w w X4.9'7%_ aw w �w w / Y - 1 0 9 - C, ' � 0 > J wW__�_ I 8 - - i I 7 - ° - -- -- - - - 1 O '-16' SPAN STREAM I 6 ��- �tO O C>Nl!j L6 100 O(o O L6 L!i 00 000 �N LO O ll7 ttj NiO (`') (O lC) O� (CO O (D �r ti Cr)� N O ti <1 ti colco CO CD n 1 (O (Do 00 M;N I Mi Ch C01 h CO CO NO M - a0 ti f\ M I(* t.O Lt) O) d7 co Co (DO i !FN �tO i O N O h O O ; O 00 Co CD O 00 OD: 00 C0 Oa0 ti N r (�i CO O (:0 M Oo0 N (0 C7 Ln 00 N W et N: O Ln °D °0 O co M o0 NCo N O O °o O (D co O0) N O d7 e= O O Co M N �t r- M O O) Co 10000 I'IttN O(o I I� t 0� N �F , d7 O) 00 OO co M L6 d) O co C0 O� N N L6 (O 0) O) M1' �� O ti 0) OCO 00, (h O K O 0) O MCW rte N et (W Co 4 0) 0o N O O, O O tl N � r O ti �0) O M O ri r- a) M �N O C`') � O O N 0) M 0)� O C`') M 0o N N 0) 0)0) �f` Co �' f` Cp N MIM (DO � CO I r CV �! 7) 0)0)CDCb ON CO co L() � M d N� (q (0 0) � M O !t O �t M eY N CD N: N ti � Olt) O) CON 03 Cl) r (O O, ON C) N O � l[) O N O (� ll) Cb O) c� O oti N (O 0) O °0 N � r` � � " 0) OD Q) C� m �t t� r - ... _ ..., nn ..nn t)4 inn 9+7010+00 11+00 12+00 DRIVEWAY PROFILE. SCALE: H: 1 "=50', V: 1 "=25- 30, EASEMENT TAR & CHIP SURFACE - 8" VDOT #21A STONE - COMPACTED SUBGRADE DRIVEWAY TYPICAL SECTION 61 2' 3' LANE SHOULDER 2.0%--- 2:1 TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR COASTAL PLAIN AREA Total Lbs. Per Acre Minimum Care Lawn c - Commercial or Residential PLANTING DATES - Kentucky 31 or Turf -Type Tall Fescue 175-200 lbs. or - Common Bermudagrass * * 75 lbs. Hip -Maintenance Lawn r.F - Kentucky 31 or Turf -Type Tall Fescue 200-250 lbs. or Hybrid Bermudagrass (seed) * * 40 lbs. (unhulled) - or 30 lbs. (hulled) - Hybrid Bermudagrass (by other vegetative 60-100 establishment method, see Std. & Spec. 3.34) GERMAN MILLET General Slope or less'; - Kentucky 31 Fescue 128 lbs. - Red Top Grass 21bs. - Seasonal Nurse Crop * 20 lbs. Qj 150 lbs. Low Maintenance Slope (Steeper than 3.11 u - Kentucky 31 Tall Fescue 43-108 lbs. - Common Bermudagrass * * 0-15 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop * 20 lbs. - Sericea Lespedeza * * 20 lbs. 150 lbs. * Use seasonal nurse crop in accordance with seeding dates as statted below: February, March through April ... " ..... , ...... Annual Rye May 1st through August .................... Foxtail Millet September, October through November 15th ...... Annual Rye November 16th through January ............... Winter Rye * * May through October, use hulled seed. All other seeding periods, use unhulled seed. Weeping Lovegrass may be added to any slope or law - maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. PERMANENT SEEDING 4' TYR N.T.S. 13+00 14+00 15+00 16+UU SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood & Wyant PLATE. 3.05-1 CLASS Al RIP RAP ON FILTER 1. SET POSTS AND EXCAVATE A4'X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE FABRIC DITCH LINING OF POSTS. (2' MIN. DEPTH) ILI FLOW 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. C FLOW G EXTENSION OF FABRIC AND WIRE INTO TIHE TRENCH. 1 t+UU 10-rUU 1 Z7TVV VDOT #1 COARSE AGGF FLOW (DOWNSTREAM VIEW) CLASS I RIPRAP ROCK CHECK DAM DRAINAGE SWALE DIRECTS FLOW TO SEDIMENT BASIN 70' MIN. 3" SM -2A ASPHALT TOP COURSE A 2% 2% 6 DIVERSION DITCH A SIDE ELEVATION EXISTING GROUND 70' MIN. IC] - CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS QUICK REFERENCE FOR ALL REGIONS TEMPORARY SEEDING EXISTING PAVEMENT 6" VDOT #21A AGGREGATE BASE ASPHALT PAVED WASHRACK 10' MIN. i2% 12' MIN. EXISTING PAVEMENT 2% 2% w�vv SOURCE: VDOT ROAD AND BRIDGE STANDARDS FILL SLOPE SECTION SOIL STABILIZATION MATS SHOULD Q BE INSTALLED VERTICALLY Q 5' DOWNSLOPE FOR BEST RESULTS. / TOE MAINTAIN SLOPE ANGLE SLOPE LINING DIVERSION DITCH MIN. POSITIVE DRAINAGE 10' MIN. (WET SLOPE) WIDTH AT DESIGN WATER TO SEDIMENT ELEVATION IS 4.0' TRAPPING DEVICE PLAN VIEW MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION 70' MIN. 2% --- NOTE: A MINIMUM WATER TRAP OF 1" IS REQUIRED WITH A MINIMUM WASH HOSE DIA. OF 1.5" SECTION A -A TREATMENT -2 POLYPROPELYENE NON -WOVEN SET 1y" WATER HYDRANT WITH (NEEDLE PUNCHED) FROST PROOF HYDRANT 3' CLOT (BEHTILE IND CLOTH (BEHIND ABOVE GRADE AND 4' OFF TREATMENT -2) EDGE OF PAVEMENT SOIL-� PAVED CONSTRUCTION ENTRANCE 5' El 20.00 10.00 00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Jg0 �Qv ',Q-4� e PLATE: 3.36-5 NOTE: SLOPE SURFACE SHALL BE SMOOTH AND FREE OF ROCKS, LUMPS OF DIRT, GRASS AND STICKS. MAT SHALL BE PLACED FLAT ON SURFACE FOR PROPER SOIL CONTACT. 4' - 2' DIRT SHALL BE TAMPERED PRIOR TO LAYING TOP LAP OVER BERM TRENCH INTO BERM AND PROGRESS DOWNSLOPE TOP OF SLOPE LINING CUT SLOPE (DRY SLOPE) .�, 2' TREATMENT -2 =\LSE �� S0 GS \ERl a Pgo . , �Pa BOTTOM OF FILL SLOPE BOTTOM OF CUT SLOPE BOTTOM OF CUT SLOPE 4' OR SHOULDER BREAK POINT SOIL STABILIZATION BLANKET TYPICAL TREATMENT - 1 INSTALLATION CRITERIA c RATE PLANTING DATES SPECIES (LBS/ACRE) SEPT. 1- FEB. 15 50/50 MIX OF ANNUAL r.F RYEGRASS & CEREAL +a WINTER RYE 50-100 FEB. 16 - APR. 30 ANNUAL RYEGRASS 60-100 MAY 1 - AUG. 31 GERMAN MILLET 50 TEMPORARY SEEDING EXISTING PAVEMENT 6" VDOT #21A AGGREGATE BASE ASPHALT PAVED WASHRACK 10' MIN. i2% 12' MIN. EXISTING PAVEMENT 2% 2% w�vv SOURCE: VDOT ROAD AND BRIDGE STANDARDS FILL SLOPE SECTION SOIL STABILIZATION MATS SHOULD Q BE INSTALLED VERTICALLY Q 5' DOWNSLOPE FOR BEST RESULTS. / TOE MAINTAIN SLOPE ANGLE SLOPE LINING DIVERSION DITCH MIN. POSITIVE DRAINAGE 10' MIN. (WET SLOPE) WIDTH AT DESIGN WATER TO SEDIMENT ELEVATION IS 4.0' TRAPPING DEVICE PLAN VIEW MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION 70' MIN. 2% --- NOTE: A MINIMUM WATER TRAP OF 1" IS REQUIRED WITH A MINIMUM WASH HOSE DIA. OF 1.5" SECTION A -A TREATMENT -2 POLYPROPELYENE NON -WOVEN SET 1y" WATER HYDRANT WITH (NEEDLE PUNCHED) FROST PROOF HYDRANT 3' CLOT (BEHTILE IND CLOTH (BEHIND ABOVE GRADE AND 4' OFF TREATMENT -2) EDGE OF PAVEMENT SOIL-� PAVED CONSTRUCTION ENTRANCE 5' El 20.00 10.00 00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Jg0 �Qv ',Q-4� e PLATE: 3.36-5 NOTE: SLOPE SURFACE SHALL BE SMOOTH AND FREE OF ROCKS, LUMPS OF DIRT, GRASS AND STICKS. MAT SHALL BE PLACED FLAT ON SURFACE FOR PROPER SOIL CONTACT. 4' - 2' DIRT SHALL BE TAMPERED PRIOR TO LAYING TOP LAP OVER BERM TRENCH INTO BERM AND PROGRESS DOWNSLOPE TOP OF SLOPE LINING CUT SLOPE (DRY SLOPE) .�, 2' TREATMENT -2 =\LSE �� S0 GS \ERl a Pgo . , �Pa BOTTOM OF FILL SLOPE BOTTOM OF CUT SLOPE BOTTOM OF CUT SLOPE 4' OR SHOULDER BREAK POINT SOIL STABILIZATION BLANKET TYPICAL TREATMENT - 1 INSTALLATION CRITERIA �,Lzx of r Alan G. Franklin Lic. No. 35326 w ,o w. LIP ' o NAL O (6 RLLLLLLL4t! p Uj 0 06 O U Uj W U) / Z � W J 0- � o- O Z OV o ren 1 _V 75 Q LL Z LLL Q O m Q Z W 00 > IIII - W 00 O 0-- ~ ® O J z z W W U) 0 0 Z U U O z z U) O O \ Lt) lf") W O N 0 0 c fnr✓ ¢ v� c r.F +a .5 Lei CU vis a Qj #� u to -0 c o° �,Lzx of r Alan G. Franklin Lic. No. 35326 w ,o w. LIP ' o NAL O (6 RLLLLLLL4t! p Uj 0 06 O U Uj W U) / Z � W J 0- � o- O Z OV o ren 1 _V 75 Q LL Z LLL Q O m Q Z W 00 > IIII - W 00 O 0-- ~ ® O J z z W W U) 0 0 Z U U O z z U) O O \ Lt) lf") W O N 0 0 PROTECTIVE BIRD NETTING ROT RESISTANT WHITE OAK STAKE -DRIVE 1/3 LENGTH INTO GROUND MIN. (2) CABLE TIES 4" DIA. X S HT. TREE SHELTER -MADE BY TUBEX -SET 2" BELOW GRADE 2 - 3' HT. TREE -PRUNE TO SINGLE STEM PRIOR TO TREE TUBE INSTALLATION 3'x 3' VISPORE TREE MATS -INSTALL PER MANU.'S SPECIFICATIONS (,!___1!'� -- -I I I BACKFILL PLANTING PIT 1=I I I; �-=-2 , I III-- WITH 2 SOIL, 3 COMPOST I -SCARIFY BOTTOM AND SIDES OF PIT REMOVE CONTAINER AND SCARIFY PERIMETER ROOTS SEEDLING PLANTING DETAIL SHEET FLOW TO FILTER OR OPEN ;'SPACE X �,;°� W `+..I� �,4• Ge%mphloData SwAm - x'* ,} www.slbsmef.org .Y. ") 28&6832 uu��• •.: ."mak, .�i'4 .�$(. � .f� 1 A A 9t 3. .k .11. .iV. moi. .96 L .r. 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No. 35326 O s I0NAL V4 L�J W F - z w O U z O U Id T O O O z J z O F— I..L W LL LL D m 75 W F— U) O 0- F_ z w O U z O U I6 r M N O Ln r 0 M CU O \W `O 1T �3: V 2 1 LL z 9 O 0 z m 1 W 2 O J U) z 0 W W N I.d— G18 Web -sF Ge%mphloData SwAm - x'* ,} www.slbsmef.org - ") 28&6832 J* 23, 2815 o�A�TH Op t Alan G. Franklin Lic. No. 35326 O s I0NAL V4 L�J W F - z w O U z O U Id T O O O z J z O F— I..L W LL LL D m 75 W F— U) O 0- F_ z w O U z O U I6 r M N O Ln r 0 M CU O \W `O 1T �3: V 2 1 LL z 9 O 0 z m 1 W 2 O J U) z 0 W W N I.d— r+' t +/+ + 'T + i-1 a- /+- -+/++ / -+ + -- i r i / l l / I / e , r r l ' ' f 1 , { \ \ \ \ ' • ` \ \ \ , \ , , \ � \ \ --'-- - \ \ \" � -e -_ \ . _- •-'� „, --- "- -•� / / / / " X / // / � i � � / . +-r,+ +-'+ + +/+ +7 + /+f+i+ ; / f l l l l l 1 j I ! i I i I i i \ 1 \ \ \\\\\ \\ \\ 1 \ \ \ _ -__ /// / // /// + + +-/+ +�� + +/+ ,� ++�t+�+/r / ( I I 1 \ \ \ \ \ \ \ \ \ \\ \\ \� \ _ \-� / l / / / / / / / SCALE:1"=40' � +-� + +++t �-++ ++/ t +++// I I t / / l l I I I I I I I I I I \ \ \ \ \ \ \ \ \ \ \ \ \ - _ - - / / / \ \ \ \ \ \ \ r \ \ / VRRM COMPLIANCE BREAKDOWN '+ +/+- + y + +,� + + / + /+ / / / / I i / / r l r ; I i I I I 1 ( \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ , \ \- ' ; \ -- - - '� , / / gREA ANALYZED IS TOTAL LOT H8R &H8D AREA = 29.79 ACRES 0 20' 40' 80' 120' /+ /// / 1I// fl I l l I I I �, \ \ \\ \\ \ \ -f + � + '++ +/t + + + + t + -� / / / l f / / I I 1 1 1 r1_ "o -...r.: I � � \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ '_ '"� ...._ - / r / / / + + ,+ \ \ \ \ \ \ \ - ,_ - / IMPERVIOUS COVER = [2 X 7,000 SF ]FOR BLDGS AND PAVING + 16,050 SF LONG DRIVE & HIGHTOP DRIVE = 0.69 ACRES + + +/ + ,-• + +/+ + + + // / / / i / l / I f l / / / / I I I+ t +- r + r� \ \ \ \ \ \ 1 _ -- _ __ / / MANAGED TURF = 2.00 ACRES (ASSUMES 1 ACRE PER LOT OF MANAGED TURF YARD AREAS) + 0.75 ACRES ASSOCIATED WITH DRIVEWAY + + .+ + +� + +\°+/r + ,� +�/ / / / / / / l f l l f l l f f r I +I ��A` R(%1-€� ` `\ \�•;,� \ \ \\ \ \\ \ \\ \ \\ \ \ \ \� \ - . J / PROTECTED FOREST/OPEN SPACE = 26.35 ACRES / + .F - + + �+ + + +� + + + + / / / DITCH & LVERT � \ ` \ \ \ - / + +� - + +- + + +/ / / / / / / / / / / / 11 �+ + + + + +\ +\++ +\ +\ + \+ \+ \+\+ `- �...� �3�0� \' \ \ \ \ r \ / * 7 000 SF MAXIMUM ALLOWABLE IMPERVIOUS AREA WITHIN BUILDING AREA P'ER BUNDORAN FARM COVENANT AND RESTRICTIONS J + + + + r+ +'+ +++�+ ,4• "` % / / / l / +D:A. 0:25+ACr.\+ \+ h V 'r + t\+ \ +\ + +. h + r �r 9'\C \ \ I \ ) - '' i l + + + + + + ++ + goy + / / / / / / l / r I 't \ \+ +\ \ \ \ \ \ \ �+ +q r EACH BUILDING SITE IS < 1.0 ACRE. / ( / / / +r + + + `+ *+ �+ + j + {�\�+, + + aj(d / / / / / / / / f f / f I \ ,�+� �} T + +\ + \+ \r \ +.�_ + \ + \+ + t� � \++\+ \ \ \+ \ \ [ - - J ***RESTRICTED AND PROTECTED BY BUNDORAN FARM EASEMENTS I I l f' ! l J� /l (� /* if / /+ / / I � \ \ t+G,;=tMl1V.++\ +i k++�+ ++ t + t t + + + + \+ + t \ +\ +\ '� \ \ \ - -_ / / 1 / / / +�� -� + + + + + + °+ + r / r l l f l \ \ \ e \ \ 74 -- I I f,% l +/ ° / / / / I I \ \ i d2 .3s CFs F+ + + + 4- + +\ +1 � \+. � +\ \ + + \+ `+ \+ \ + \+\ \ + +\ + \+ t \ _._ - I / + + + + + + + -+ / q / ' + + + +--+ + + ,�- ���- +/ / �O / / J ! l / f ( \ + 1- \ +\ h \ + +r ;-\ + , +- +- +. + \ +\+ \+ \+ + \ fit\ + + �\+\+ + .+ + +� 1�'!'! - y - _ •TOTAL LOAD TP REDUCTION REQUIRED LB/YR 0 LBS/YR ( I I l l l l l +- + + + +,,+ + +° +/ / q� / / ! % / \ \ \ \ \ I Qua= 6,; 7 CFS + + + + +! + `+ t +� + +. L +\ \+ \+ \ \+ +\ \ �\ +\+\' \+ \+ + + +\+ ,� ( ) ( ) = I / `- - - . +.•.F + + + + + + + t / / / °� ! / I I , r�.... t 1 .�..*�-..}i ..L .h • �, �' +\•r --;f' -.A • +'-�i- t " i + , + + + \ T\ -r, ,-,+ + + + + + + + + t - t + + + + +\ + \ \ 1 \• / + + + + + +'* / ,� ! , \ \ \ \ .-.�. •, r l {" . _ .__ 1 \ Q\N \ \+\ \ \ �+ �"� tom. '1 '\ I\ / ` l / \ / +--'h--+-+--I-_.-+�+ + +/ \ r / / / \OJ / / \ \ 1 � ` \ \ 3� r-� r r - / / \ + + -+- + + } + + + +y\� k � + + +� 1r + + \+ +�+ + +\ +\ F �AI#�IAa�' HyhC L �F + + + + + `+ + + + ` /�,y/� y� + \ \ \ \ \ _F t + + t t +,t + + / 9 / / { S \ t } 'rte _ b ^' � t D } '---ISI--� �--n.' .�}- -•-'{� t , 7\ t I + \+ i + `+ i + \ -!� �+, : \ + \ + , \ \+\ -F \ t \+ • 1 �{ Lk ` W L +. 'EA� C I \ + +\ + + 1; + +l + + + + + / \ I / V Il V - t t f / 1' I I I I I I i I I I I , ` \ \ \ \ \ \ \ \ \ \ __ - + + + 'P" �- ..+.- +- + 4.- / / / / / / / I 1 \ - \- _ - - ...- - -- It p Dn" 1'-DA•`�=?DAI r pA-- ' +� + +` ^�- i. r + + �-�- t +1 +i +ti + t + + +\ + + tl + +\ + + + t•�1 L \+ + -+\ + + + + + + + t + + t + I t N 805 I I' I I I \ \ �`. w + + + r+- � \ / J 9 -- - - 4___-�-----\--- D * + + + + t + +r + IAPr 4b + It �� + + �� 1+ + + \+ +\ kC ��'• .. I \+\� t +� +\ + + +\+ \+ +\ + t t t +; + + + + '+ + + + + + + - X29" fiance tia�d Trust 11 f \ \ \ \ \ . _ _ _ . / / _ d� -pA-�= f +- + + +1 + + + �+-. oA +I +� + � + + + + + \+ + � +\ + • \+ �c +A t E Y r J I ! 1 1 1 1 I I 1 1 \ \ \ \ \ , + + + + + +- + + / o / / / / / �a��- ��� - C J r �* I I + (7A o .I \+ �' \ '� + \+ �, + + \+ + + + + t.�+ +f + + +� + +/ + + + + + - DB 2188 \646JB 58� 282 (' 1! a I i I ( \ \ \ • \ \ -- --I—+-_-�+_++_+ - f + �+_. +++..+I++-k+i+. + \t•:,I t \+.\-+\+\+-\+\-++ +\+\+�+ p28 +\+�- + +++�++ t++t��t t++++.+++/+++- r p 1 1 IIIII ; Ii1\\\\ \\ \\ __..- +++++++ --'�b, ,---�____ _>_----r�"+-++i+,+ +,+++t++t+,++7. ,,I--.++++++,+\+\ '� ,;�+\++� +�r,++�� �+�t \++\++ +`-- +-- +++1++++,,+t++++ �...�,� \\ \ , IP I' I I \ \�\• �_ _ +_ +--�---t--h } + / y �e i I I 1 t_�_ 1_� 1 i a�8�4 a t + + + 71 + + l+ +r t + +4+. 'r \ \ \ \ '�'+ . 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I I \ \ / \ BUILDING SITE -tl / ,", r + I+ l+ +�+ ]+ +l + + +� 1 \ +\ +\ +\ + + + + +•\+ �+�+Q+ � 5 + + + ��,A + + + + + + + + + + + + + + + + -- i l \ \ 0 i h -0h.\ r&n \ \ + +--+-+-+-+ \ * I SITE ++ +++++{ - - + \ \ �� \ +\+ ++ + \+ + + + I 1 i i A g \ _ /� \ IMPERVIOUS COVER = 7 000 SF FOR BLDGS AND PAVING I ,� i+ 1 +j + b� + + + + + +/ + ,, i -a - + +' -. + 7 � , RE� 2- �+ , _+_ + /+ + + + + + + + + + + + + + \+ +\ + + i , 1 \1 1 i \ \ \ \ - - r - -- +- + _+_+ +1 I I h +� +� + + �+ \ \ + ,D �o�F5 \t )+1 / III 1 \ \ Roi'nsot� Hollov�to Ri s��!. _ _ - -- - -- +-* +-# + MANAGED TURF = 1.00ACRE MAXIMUM ASSUMED 1 1 I + I+ + 1 -+ + + + +- + + -\ \�+ +++ +., +++ }+ ++-+++\+ 0,2 ++++\++�++ + _f ++ +t+++++ +' + + ++ T,,#EA +++++ +++++++++ ++tt ++++-+ F+++ ++ ++ 1 ��+' I \ \ -- - -- + + + + + + �+, \ \ ** ( ) j / + •,;y + +I + 1 + I-` + °+ as + / + / + / + p L+ + + + \ + + + oo \ `1 \ *+e � 5.Ac�\ \r \ .. tC . / 1 + + +' \ \ DB 1 4, X32 l2t \ \ ~ - �t�+ + + +� +�\ \ + + +s + + + + + I+�+t'� 4 + + fr + + b +l +�+ + + +\ +\ + \+ +•., + + + + + +\ +\+ \ , + + +\ + + + + + +`?" + + + + + + + + + + + + + + + + + t,+ + + +I + + + +�' 1+ - \ \ \ \ p� � �.-, ~-- -- ' + + + \ 1 I I/+ +[ + I+ $-•1 + 1 t +- + +- +gib, + /+ { + +\+ \ + Z- ,\+ + r• + t r:,+ +\+ a + � +\+\+ +\+ + t \- + +\+\+ +++� +- + + + + h +- + \ + +_ 1� + l++I +\+ t aB �,�9•��\ \\ __ --- - '� �� \\ \\ o\ / I I I \ I ` / + + + + + +�'�Fv + I+ 1 + + b + + + + tl°� + � + + + �oc�soa +\+ fir +\ +\+ \+ + + + + Nq E E F rVE + +�+ + + + + + + + + +� + +�+ �\+ + \+ +i + �� �+ + +\+ + + \ ��\ '- ` - - + + + -`+ + \ + + 1 \ 1 I + -� + , + 1+ -4 +1 + I r�`1• �+. + + ; + J1- + � + bp�,�•\ l + + +\ + \ + N- +\ +\ + \ \ � ' "-F �., +\ +\ + \+ + \ + \+ + y- `! 1 `+� �Fz + + + + + + + + + + + + �+ + + �t + + + °mow. 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D Soils ..... ....... 0.03 A soils B Sods G So ils D Soils Totals Forest/Open Space (acres) -undisturbed, 0.25 Impervious Cover 0.95 0.95 :,;4,. ; . `x`44 ,� , protected forest/open space or reforested land 0.00,;, 26.35 0.00 0.00' 2.3a >., ;; Managed Turf (acres) -- lis#urbed, graded for L Lr W O ards r other turf to be mowed/rnana ed o g 0.00" 2.75. 0.00 '' 0.00' �. i,'S. �: Impetuous Cover (acres) 0.00 :0:69`: 0.00 0.00 ,, `,0 - . - Tota l i - - -`- - - A soils B Soils C Soils D Soils Forest/Open Space 0.02 0.03 0.04 0.05 Managed Turf 0.15 0.20 0.22 0.25 Impervious Cover 0.95 0.95 0.95 0.95 ..... ........ .I....... ....... ..1111... Land Cover Summary 1 ace Cove r acres Forest O en S ) p p ( :: % Forest Manaqed Turf Cover (acres) O :. , 0 /o Managed Turf >: .y<:f.9' z:;`"# r c rs `4!':6, Im eru us ave e a C a ( ) % Impervious Total Site Area Site Rv Post -Development Treatment Volume (acre -ft) ost- evelopment Treatment Volume (cubic 4 Past Deveioprnent Laad (TP) (1bJyr) Tata[ Laad (fP) Reduc#ion Required (Iblyr) Load STORMWATER MANAGEMENT CALCULATIONS VSMP CHANNEL PROTECTION CRITERIA FLOOD PROTECTION CRITERIA Post -Development stormwater will be converted to sheet flow via four rigid lip, engineered level spreaders to existing forested areas and stream buffer so that the runoff will not negatively impact down -gradient properties or resources; therefore ,per 9VAC25-870-66, the VSMP Channel Protection Criteria and Flood Protection Criteria is satisfied. WATER QUALITY CONTROL (See attached Spreadheet) The Stormwater Management Plan and calculations demonstrate compliance with 9VAC25-870-65 wtihout BMPs for Bundoran Farm Lots H8R and H8D by utilizing recorded Greenbelt/Farmbelt easements, Sustainable Design Development Guidelines, and Community Charter which limit the building site acreages, the maximum amount of impervious areas associated with development, and the activities permitted in forested and olpen spaces on these lots. See below for applicable excerpts from these documents. DB 3486 / PG.153: Overview of Green Belt and Farm Belt Easement, Operational Areas and Potential Homesites, Plat Notes for Bundoran Farm, Note 4. reads in part: "Farm belt and Green belt Easements: All portions of lots outside of the homesites shown on this plat, as it may be revised, amended or supplemented, are subject to farm belt and green belt easements, as defined in the Community Charter referenced in Note 1, above.... Use of any portion of the lot outside of the homesite is restricted by such easements and otherwise as provided in the Community Charter. Such easements are for the purpose. of engaging in agricultural operations and activities and such farm, forest, land, water and wildlife management and environmental activities and practices as may be authorized pursuant to the Community Charter." BK 3500 PG 1-112: Community Charter for Bundoran Farm (Charter) Charter, Ch. 3.1, pg. 12 (2nd paragraph) "All portions of a Lot outside of the Homesite(s) on such Lot shall be subject to the Farmbelt and Greenbelt Easement described in Chapter 13." Charter, Ch. 13.9, pg. 49 "The Founder hereby grants to the Association, its successors, .and assigns, a perpetual, exclusive easement (subject to any pre-existing rights and easements) over all portions of the Community lying outside the boundaries of the Homesites ("Farmbelt and Greenbelt Easement") for the purposes of: (a) engaging in agricultural operations and activities within those portions of the easement area consisting primarily of pastures and fields suitable for such activities ... b) engaging in ...timbering, logging, and silviculture activities as the Farm Management Committee deems appropriate for maintenance of the Greenbelt Zone in its natural condition as forest or open space, wildlife management activities, and recreational pursuits such as hiking, horseback riding, and other recreational activities... c) engaging in such other forest, land, water, and wildlife management and environmental activities and practices as the Board, upon recommendation of the Farm Management Committee, deems appropriate." Bundoran Farm, A Property Owner's Guide to Sustainable Design & Development (Guidle) pg. 37: "Impervious Cover Threshold: To preserve the function of exiisting natural systems to the greatest possible extent, Bundoran Farm has defined a threshold of impervious area within the Development Zone of a homesite. The threshold is intended to help maintain groundwater recharge rates and reduce localized and downstreaim stormwater problems. The impervious cover threshold for a Development Zone is consistent with the Virginiia Chesapeake Bay Preservation Act, which requires stormwater management on development projects that create more than 16 percent impervious area. , The average size of a Development Zone at Bundoran Farm is 1 acre, or 43,560 square feet, and the 16 percent impervious area threshold is roughly 7,000 square feet. Development Zones with more than 7,000 square feet of total impervious cover must employ LID techniques to mitigate for the impervious area that exceeds 7',000 square feet. Impervious surfaces can include the roof area of the house, aro e, outbuildin s, and outdoor areas made with im ermeable materials, such as the patio, parking and driveway section 9 9 9 P located within the Development Zone." j C oC 'Grp �S �, ��,LTH OF O� �j�C r (O �7 . Alan G. Franklin Id 9 Lic. No. 35326 W ,o w. c{'�4P 0 ti_�~ NAL w w �Z� Q� a p z ~ o = Ll1 � Q w � � o 0 CD � z CD t - z O�� 2 W ~rn°>o o z 0 O V / > J CD � z CD t - z 2 2 W 2 o z 0 O Z Z O O \ L Lr W O N 0. 00 0 r- 0 J