HomeMy WebLinkAboutWPO200600005 Plan - E&S Erosion Control Plan 2006-01-03y
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E&SC LEGEND
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ESSC STD. ISSPEC
CE TEMP. STONE CONST. ENTRANCE 3.02
SF SILT FENCE 3.05
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CIP CULVERT INLET PROTECTION 3.08 NCESIDE _
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DD TEMPORARY DIVERSION DIKE 3.09
ST TEMPORARY SEDIMENT TRAP 3.13
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INGLERIDGE
TSD TEMPORARY SLOPE DRAIN 3.15 FARM
OP OUTLET PROTECTION 3.18
PLOT
PROJECT
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3.20
LD ROCK LEVEL CSPREADER HECK S 3.21
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TSS TEMPORARY GSEEDING 3.31 O
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PS PERMANENT SEEDING 3.32 NDNNE D
SO SODDING 3.33
MU MULCHING 3.35
B/M SOIL STABILIZATION BLANKETS/MATTING 3.36
SHED B - 5 \�-1 / _ _ -
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DC DUST CONTROL 3.39 00,
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GENERAL EROSION AND SEDIMENT CONTROL NOTES
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529.6 SO8 5 �''- - '
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ES -1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND
ED
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SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING
TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00
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ES -2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-
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S -i t Trap -#1
CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND
DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
_ _Dtaing-e-Area- (ac)-:- - -_ 3.2
2121.E \ \ / \ /
ES -3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS
- Wet-S�or-age_Req (cy):
5"9\5.3
\ \ \ - - - - _ Dry 5tnrage Req (c_ : 214. 4 \ \ \ \ / % /
_ - - - -_ - -- -- - Tot -al- -Re-q fcy) " 428. 8 \ \ / ! / ' / / / \. '
ES -4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE
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_ Storage
1Y7 -- _ ` - -575- _ - _ - - - -Eley \ Side '2,., Area \Vol\ ) Vol // /' ' ! ' �� / _
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ES -5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN
- - - - - 156.(Sf/ / /' /
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Low'P,pint X516. \ 34 \ 34\ 1156.0 I ; i
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INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF-SITE BORROW OR
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Bottom We' 52fl. 42 42 1764.0 8401.0 1P.3 we /( /
WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL
PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
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\ 2: 1 Side slope \ -
Tap of, Weir 52.\4 152. A 2745.8 %5862.7 1/ dr ! / / / %
ES -6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION
CONTROL MEASURES NECESSARY TO PREVENT EROSION SEDIMENTATION AS
1217. ���'
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AND
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\Weir Length (ft):\19.2\. \ 1 I / i hilt/Tram #2l ! \
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\`\ Weir Height (ft) : \2.6 1 1 ; /Drai/nage Ar a (ac) : / 3. 1 \
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E5-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT
\ \ \ To of Berrn, 523\ 1 / \ \
6 j 1 r I 1 1 { { 1 / Wet Storage Req (cy) : 207. 7
Tap of Weir: 522.6 / { { ' I Dry/ Storage/ Req (ryy) : 207.7 / / / \ \
Berm Width (ft).: 3.0 1 0 _.-- Total S/torq�ge Req (cy) : 415. 4
� - 1 I Ix \ \ 1 5577 \
�' \ Ellev Side 1 )Side 2 Area Vo of \
ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELPMENT UNTIL
ES -B: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED
ES -9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND
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AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR
\Lo Point 517.5 60i 18 1080.0 \
\1: side slope /
CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL
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LIMITS OF CLEARING � / / / \ \ glom of 1 Weir: 521.5 6� 26 1768.0 5696.0 211.0 wet \
_ -f--- _ 2: 1 \sioe lope / \
\ / / --"i - / - -I - I \ �` \ \ Tai of k� :LI' 524.0 7a\ 36 20OB/. 0 5720 211.9 dr' \
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We Length ' ft) : 1\6. 6 /
Thomas Property Waste Area
Erosion/Sediment Control Narrative
January l2, 2006
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Top bf Berms. 525. \ /
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PROJECT DESCRIPTION
The project consists of fin in a waste area. The total disturbance for this site is 6.3 acres.
Tip of Weir: \ 0 \ \
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EXISTING SITE CONDITIONS
8�rm VN.dth\ (ft'� a. 5i \ `y/ l
3.2 Ac \ \
The s.r_e -_ mOSHy Cn fer,� ,and xac, to ogra-i y , oiling ,corn 2i to i5a. wicr-, �rvo , ain dra,: sge areas _°;a4 waif !
to a creek below. -r pw_var p N
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ADJACENT PROPERTY
2,arracks Road (Rt 6541 is to the west, Montvue Subdivision to the north and Old Salem Apartmente' to the south.
600 \ / ' / / / / - \ M\ ST NflT GO INTO SILT T� " \ \ ; \ 564,2
OFFSITE AREAS
IT I NOT D€SIGNED TCT TAKE. IT \ X
Waste material will come from an area with an approved ESS plan.
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SOILS
1.:51D : Manteo Channery Silt Loam. bedrock found approximately 18, below the surface, the hazard o' erosion is very
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severe and_ is a" major management concern.
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2_622,8C . Silt Loam, ripable bedrock from 40. to 60. below the surface, this soil has a moat>rote erosion
hazard Low -swell
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warning. strength, shrink potential and excess fines limit the use of the soil as a source of
road fill and house sites.
CRITICAL EROSION AREAS.
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An on site stream is the only critical erosion area.
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EROSION AND SEDIMENT CONTROL MEASURES
Unless otherwise indicated, all vegetative and structural erosion and sediment control practices will ba constructed and
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according to minimum standards and specifications of the Virginia Erosion and Sediment Gentrol Handbook
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(VESGH)d
STRUCTURAL PRACTICES
1. Construction Entrance- 3.02
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A temporary paved construction entrance shall be, installed at the beginning of the project.
DD must be +n e ` % ' / / 131
of The end of brho doy -
2. Silt Fence- 3.05
A temporary sediment barrier consisting of a synthetic filter fabric stretched across and attached 20 supporting posts
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to insure that d omcag are \ ! ' / f RP
1ilt trap 1 \ 1 / / /
P, ; \ { � / to the two the
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and �o pre lit\exessive\ low / / / /
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and entrenched.
3. Temporary Diversion Dike - 3.09
A ridge of compacted soil constructed at the top or base of a sloping disturbed area which diverts sediment -laden runoff
to a sediment trapping structure.
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4. Temporary Sediment Ira - 3.13
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A small ponding area, formed by construction an earthen embankment with a stone outlet across a drainage swale.
VEGETATIVE
PRACTICES
I. Temporary Seeding- 3.31
Establishment of temporary vegetative cover on disturbed areas by seeding with aPpropriate rapidly „jrowing plants on
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sites that will not be brought to final grade for periods of 30 days to one year. German Millet at GO Ib./ac., Weeping
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Lovegrass at 3 Ib./ac., Korean Lespodeza at 20 ib./ac.
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Temporary seeding shall be fertilized. Fertilizer shall be applied at a rate of 600 lbs/acre of 10-20-10 according to
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the handbook. The builder may save considerable funds by having the soil tested by VA TECH (kits are available at the
extension office and the test costs $6.00).
2. Mulch - 3.35
Organic mulch shall be used in conjunction with seeding operations and shall be applied at the rate of 2 tons/acre.
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3. Dust Control- 3.39
Dust control Measures shall be utilized throughout this site when necessary. Typical temporary measures include but are
not limited to, irrigation, temporary seeding barriers. These measures will aid in the prevention of harmful airborne
substances as well the effects of wind erosion.
J IV/✓
MANAGEMENT STRATEGIES
I. Construction should be sequenced so that grading operations can begin and and as quickly as possible.
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2. Sediment trapping measures shall be installed as a first step in grading and shall be seeded and mulched immediately
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following installation.
3. The Dob superintendent shall be responsible for the installation and maintenance of all erosion and sediment control
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4. Temporary seeding or other stabilization will follow immediately after grading.
5. Areas which are not to be disturbed will be, clearly marked by flags, signs, etc.
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PERMANENT STA&LiZATION
All areas disturbed by construction will be stabilized with permanent seeding immediately following f+nia�h grading.
Seeding will be done with Kentucky 31 Tall Fescue according to Std. 9 Spec. 3.32 of The Virginia Erosion 8 Sediment
Control Handbook. 5-20-10 fertilizer be the 1000 Ib/ac and lime at 2 tonsfac. Permanent)
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shall applied at rate of
seeded areas shall be protected during establishment with straw mulch (2 tons/ac). y
STORMWATER MANAGEMENT
There Stormwater
will be, no new impervious area. control will be required when this area is developed.
MAINTENANCE
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In general, all erosion and sediment control measures will be checked weekly and after each significant rainfall. The
following items will be, checked in particular:
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1) The sediment traps and basins will be cleaned and maintained according to the VESCH.
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2) All gravel outlets will be checked regularly for sediment buildup which will prevent drainage. If th', gravel is
596,3
clogged by sediment, it shall be removed and cleaned or replaced.
3) Silt fence will be checked regularly for undermining or deterioration of the fabric and repaired as reciuired.
Sediment shall be removed when the level of sediment deposition reaches half way to the top of the barrier.
4) All seeded areas will be checked regularly to see that a good stand is maintained. Areas should be, fertilized and
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reseeded as needed.
MS -1 Stabilization of Denuded Areas and Soil Stockpiles
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Permanent or temporary soil stabilization must 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 (undisturbed) for longer than 30 days. Permanent stabilization
PARKING // �; / /�
shall be applied to areas that are to be left dormant for more than one year.
Soil stabilization refers to measure which protect soil from the erosive forces of raindrop impact acid flowing water. TH 0
Applicable practices include vegetative establishment, mulching, and the early application of gravel base on areas to be SPL F
Soil stabilization measures should be selected to be appropriate for the time of year, site conditions and
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,6 estimated duration of use.
MS -4 Timing and stabilization of Sediment Trapping Measures
Sediment basins and traps, perimeter dikes, sediment barriers and otber measures intended to trap sediment shall be U v
constructed as a first stopin an land-disturbingactivity and shall be made, functional before up-slope land
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disturbance takes lace. W. THOMAS MUNCASTER, JR.
MS- 5 Stabilization Measures CERT NO. 16242
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Stabilization be applied to earthen as dams, dikes and diversions immediately after cu
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measures shall structures such
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installation.
MS- 17 Vehicle Access �n
Where construction vehicle access routes intersect paved public roads, (revisions shall be made to minimize the
X 5974
transport of sediment by (vehicular) tracking onto the paved surface. Where sediment is transported onto a public road O A
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surface, the road shall be cleaned thoroughly at the and of each day. Sediment shall be, removed from the roads by AOFESSIO�
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shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after
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sediment is removed m this manner. This provision shall apply to individual subdivision lots as well a. to larger land
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disturbingactivities.
MS -18 isposition of Temporary Measures GRAPHIC SCALE 1 =50
All temporary erosion and sediment control measures shall be removed within 30 days after final sito stabilization or
after the temporary measures are no longer needed, unless otherwise authorized by the local progrom administrator.
Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently
stabilized toP revent further erosion and sedimentation. 0 50 100 15 0
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