NCC191258_MODIFICATION Supporting Documents_20190924 (2)

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— PLAN PO FOR CONSTRU TIONSF =4 �>
\ This Ian complies with Chapter C Article 4 - Erosion Co tr o
�s J 21045 sf �� p p p
\ ds \ I thejown of Lewisville Unified Development Ordinance. _
o � printeclset of the'stamped/approved plans must be kept on the NOTE:
MODIFICATION OF THIS PLAN MAY BE NECESSARY
constri site for reference when installing required erosion
�� I \' ' \ \ I control measures. IF WORKING OUTSIDE OF THE PROPOSED
L ' x 1 / DISTURBED LIMITS SHOWN ON THIS PLAN.
SF —`� $ {— matthewo 08/30/2019 2:42:37 PM
SF� SFI ' / NOTE:
/ U) r Is SEDIMENT BAGS TO BE INSTALLED ON ALL
EXISTING CURB INLET'S.
/\-70
� \/�b / NOTE:
/fv I I I ADDITIONAL EROSION CONTROL MEASURES MAY
BE REQUIRED DURING THE COURSE OF THIS
— SF SFI ,� SF I �I / PROJECT. NOTE: TEMPORARY INDIVIDUAL CONSTRUCTION
417 8 if �� / I ' / ENTRANCES NOT REQUIRED. ONE SINGLE POINT
ENTRANCE ALLOWED CONTINGENT ON NO MUD
NOTE: BROUGHT INTO THE STREET.
w I I ��`-� / I CONTRACTOR TO VERIFY LOCATION OF ALL
I
ILT FENCE 4 V V �\ � EXISTING UTILITIES PRIOR TO CONSTRUCTION. ANY
•�• / ----1 ��...��� ' / r I ' ' .� DISCREPANCIES TO BE REPORTED TO PROJECT WHEN THE PERSON FINANCIALLY RESPONSIBLE FOR THE
/ / MANAGER AND/OR ENGINEER OVERALL PROJECT IS NOT THE PERSON FINANCIALLY
RESPONSIBLE FOR OFF -SITE BORROW/WASTE AREAS
X NOT REGULATED BY THE PROVISIONS OF THE MINING
NOTE: ACT OF 1971 AND OFF -SITE WASTE AREAS OTHER
GROUND COVER SHALL BE ESTABLISED ON ALL EXPOSED THAN LANDFILLS REGULATED BY THE DEPARTMENT OF
SLOPES AND FILLS WITHIN 7 CALENDAR DAYS FOLLOWING WING HUMAN RESOURCES, SUCH AREAS SHOULD BE
THE COMPLETION OF ANY PHASE OF GRADING. CONSIDERED SEPARATE LAND DISTURBING ACTIVITIES
PERMANENT GROUND COVER SHALL BE ESTABLISHED ON SUBJECT TO THE SEDIMENTATION POLLUTION CONTROL
ALL DISTURBED AREAS WITHIN 14 CALENDAR DAYS ACT OF 1973. OFFSITE BORROW AREAS ARE SUBJECT
\ ` OOP` FOLLOWING THE COMPLETION OF CONSTRUCTION. TO THE REQUIREMENTS OF THE MINING ACT OF 1971.
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NOT TO SCALE
POST
METAL= 6' LONG, TRIANGLE STEP
MAX. HOR. SPACING= 6' O.C.
PLASTIC OR WIRE TIES
18-24" SYNTHETIC FILTER FABRIC
(EXTRA STRENGTH)
8 . FEOW
2BACKFILL TRENCH AND
4" COMPACT THOROUGHLY
NOTES:
1. TOTAL DRAINAGE AREA FLOWING TO
SILT FENCE MAY NOT EXCEED 2 ACRS,
IN DRAINAGE AREAS OVER 1 ACRE THE
SILT FENCE SHOULD HAVE A STORAGE PIT.
2. SILT FENCES SHOULD NOT BE USED AT
PIPE OUTLETS OR IN AREAS OF
CONCENTRATED FLOW ( CREEKS, DITCHLINES,
SWALES, ETC.)
SILT FENCE DETAIL
N TS
DISTURBED AREA REVISIONS:
ORIGINAL D.A. = 11.91± AC
ADDITIONAL D.A = +14.66± AC
LOT *'S (1-3, 10 -12, 16 -19, 46 -4 7,
49-50, 52, 185, 194-1R7)
NEW DIMRSED AREA = 26.57± AC
TOTAL DISTURBED AREA= ±26.57 AC ::1
i OUTLET /
60
EROSION CONTROL LEGEND
CONSTRUCTION ENTRANCE
—x—x--x x x TEMPORARY SILT FENCE
x
10 STONE WEIR OUTLET
—� �� DIRECTION OF FLOW
DISTURBED LIMIT LINE CONTACT INFO:
HOUSE PAD JESSICA MEYER, CPESC,CESSWI
D.R. HORTON, INC.
SPLME SEPTIC SUPPLYLINE GREENSBORO NPDES MANAGER
MAINTENANCE EASEMENT PHONE: [phone]
P.D.E PRIVATE DRAINAGE JAMEYERQdrhorton.com
EASEMENT
TOPO AND PAD GRADES PROVIDED BY JAMESTOWN
ENGINEERING. NO FIELD WORK HAS BEEN PERFORMED BY
EVANS ENGINEERING, INC.
GRAPHIC SCALE
0 30 60 120
( IN FEET )
I inch = 60ft.
PROJECT TITLE:
CONRAD FARMS
PHASE 1
CON3AD FARM ROAD FORSYTH COUNTY
PFAFFTOWN, NORTH CAROLNA
OWNER/DEVELOPER:
D.R. HORTON, INC.
4006 MENDENiALL OAKS PARKWAY, SUITE 1W
HM POW, NC 272M
.JESS CA Mill 9W460-2M
-� vans
\,,����'ot�", ���A„R�<'''%,
- gineenng, Inc.
=
SEAL
—Since 1974—
I Engineers Surveyors Planners
_ z 18914 = Q;
=
4609 Dundaa Drive Greensboro, NC 27407
i "In
'�i�o•
Phone 336-854,8877 Fax 336,854-8876
Phone
`gG�►\\����
FIRM LICENSE #C-0168
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PROJECT: 125-308 DESIGN BY: TTS DRAWN BY: TTS
DWG: H:\DRAVANGS\D R HORTON\CONRAD FARMS\PH 1 LOT EROSION CONTROL 5..dwg
SHEET DESCRIPTION:
LOT EROSION CONTROL
SCALE: 1"=60' DATE: JANUARY 31, 2017
REVISIONS:
SHEET NO.:
02/27/2019:ADD LOT 86
08/26/2019:ADD LOTS. 1-3. 1D-12. 16-19, 46-47. 49-50. 52,185 & 194-197
A
2400

EROSION CONTROL CONSTRUCTION SEQUENCE
Iilstons" 2-12-13
1. Obtain gradinglerosion control plan approval and permit from the City of Winston-
Salem Inspections.
POMK Works
° partn �t 2. Contact Erosion Control Inspector to establish a pre -construction conference and
stotmwater/Etoioo ad inspection schedule.
sedimentation Cantor Pnwm
Self Inspection -Effective October 1, 2010, persons conducting land -disturbing
activities, larger than one (1) acre, must inspect their project after each phase of the
ioz project, and document the inspection in writing on approved forms available from
(:in L.nk ill +36.-'".80M.
tluµj�Y�fm,nn the City of Winston-Salem Inspections office.
The phases are as follows:
1. Installation of perimeter Erosion and Sediment Control measures-
2. Clearing and grubbing of existing ground cover.
3. Completion of any phase of grading of slopes or fills.
4. Installation of storm drainage facilities.
5. Completion of construction or developmerrt.
6. Establishment of permanent ground cover sufficient to restrain
Erosion.
3. Clear site ONLY as necessary to install initial Erosion Control measures as follows:
a Temporary construction entrancelexit
b. Temporary diversion berms
C. Temporary silt fencing
SILT FENCE -TO BE
PLACED ON LOW
SIDE OF EACH LOT
Seed embankments and disturbed areas of devices (including "clean" water
diversion) upon completion of construction. See Ground Stabilization Criteria
below for more information.
4. Begin clearing, grubbing, and stripping of site as required. Earthen -material
stockpiles on -site for later distribution and/or removal, areas dedicated for management of
land clearing and demolition debris, construction and domestic waste, and hazardous or
toxic waste shall be located at least 50 feet away from storm drain inlets and surface
waters (unless it can be shown that no other alternatives are reasonably available), and
within areas protected by Erosion Control measures.
5. Begin site grading. Maintain Erosion Control devices in accordance with the
maintenance plan. Install additional Erosion Control measures as required.
6. Install storm drainage system and utilities. Storm piping shall be installed to the point
where it enters each device. Completion of piping will ONLY be allowed once the site
has been deemed stable by the Erosion Control Inspector. Install protection around all
inlets as storm drain system is installed.
��ti'1I11I! 2'1r1'll ll'!'�J �lii.t)l�.l l �-i L�
SITE MU
STAMILIZATION
STAMLIZAIION
DESMPIION
TIMFRAW
M MEFRAM
EXCEPTIONS
Perimeter
dikes, swales,
7 days
None
ditches, &
slopes
Slopes
steeper than
3:1
7 days
If slopes are 10' or less in
length & are not steeper
than 2:1,14 days allowed
Slopes 3:1 or
flatter
14 days
7 days for slopes > SO feet
in length
All other
areas with
14 days
None
slopes flatter
than 4:1
7. Prior to the Contractor demobilizing from the site (at approximately 45 days prior to
demobilization), the Financially Responsible Party (or their designee) will notify Joe
Fogarty (City of Winston-Salem Stormwater Engineer, 336-747-6961) and the designated
Erosion Control Inspector of their anticipated date to leave the site. An on -site inspection
will be conducted prior to the leave date by Mr. Fogarty and the designated Erosion
Control Inspector to make certain all action items have been addressed by the Contractor.
8. Continue to maintain Erosion Control measures until vegetative cover has been
established over all disturbed areas and site has been stabilized. Remove Erosion Control
measures ONLY after final inspection and approval by Inspector.
EROSION CONTROL MAi WENANC'E PLAN
1. Inspect all sedimentation and Erosion Control devices for stability and function
each week and following each rainfall event.
2. Remove silt/sediment from temporary devices when accumulated volume has
reached 50% capacity.
3. Remove accumulated silt(sediment from behind temporary sediment fence when
depth exceeds approximately 0.5'. Repair and replace silt fence as necessary.
4. Seed and stabilize temporary diversion berms immediately after construction
including "clean" water diversion berms. Re-gradefrepair berms as required.
5. Contractor shall appoint an on -site inspector and maintain records of inspections in
accordance with the provisions of the general NPDES Stornwater discharge permit for
construction activities.
STREET
TYPICAL LOT EROSION CONTROL PLAN
DENOTES DRAINAGE
FLOW ARROWS -MAY
NOT DEPICT ACTUAL
FLOW DIRECTION ON
EACH LOT
CONSTRUCTION
ENTRANCE(TYP)
HERBtACEOLN PLAT 4keding rsconrrwlr�da�lolts for ply shlftedon
t;lenllelopnwxit Imp a do Ilse p"rg tab SW: 6 mm - 3 ym wNhimA w n galIto in Doe plrl w m)
NON-MATWF SPFCNM
Table 6.11.b
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Ptacdice SrwAwds and Speafrcadons
Table 6.24c Permanent Seeding Recommendations - Piedmont Region
Pereentageof
Optimal Planting
Soil Drainage
Sthade
Common Napa
Scienlitk Nam i
cullivas
Type'
Nix
Dates
Adaptation
Toleranm
Heigh
SATikhgrass
Panicum,igalun
8A*"-- Well dairw
Sheller'- Well diained
waml
1015%
Dec.1-Apr 1
CWMr
Poor
8
Ka�or_-
Se
D "andert
Catlgge - AAddTflCd
9wilehgrass
Parlictxrr uirgatlm
10.15%
Dec. 1- May 1
� �
Poor
6
Alamo - poorly �
Swett
Indtangrass
Sorghastrum
wane
M114raired to
10 30%
Dec.t • Apr. t
Poor
8
rulans
RwwW.0sxAChrpm
Season
Droughty
llQlangrass
Sorghaseum
Warts
well-drainedb
1030%
Dec.1-Mayt
Poor
8
nubns
Lomb
Season
Droughty
Deerbngue
Diichaaelium
Warm
Pood"rainedb
5.25%
Dec. 1-Aprt
Moderate
2
clandestnum
Troga
Season
Don
Big Buestem
Andropogon
Warts
V*1l dr=Ldta
10 30%
Dec.1-Apr.1
Poor
8
erardi
Rondlrse, Kw. fed
Season
DA ou
LilkMoslem
Set"aechymni
Warm
Wag-dtairedb
' 430%
Dec 1-Apr 1
Poor
4
sco Pa rium
chmm"
Season
Droa
warm
db
t -70%
Dec. 1 - Apr t
Moderate
5
SweetWoodreed
Clans srund'nsces
Season
d�
Yllann
5.25%
Dec. t - Apr.1
Poodydrained
Poor
5
Rice Cu4rass
Leersia ay®ides
Season
warm
10-20%
Dec. t - Apr. t
Well -drained
Poor
3.5
Redlop Pankgrass
Paricum Nidulum
Season
Warm
10-20%
Me. 1-Apr.1
Poodydr ned
Moderate
3.5
Beaked Pankgrass
Pmktan anceps
Season
VIhm
edb
510%
Dec. 1-Apr.1
�
Poor
25
Pwpletop
Tridenstaws
Season
Eastern
Tripsecum
wamr
YIk1•drailedto
'des
5-10%
Dec.1-Apr1
Poor
4.5
Gammagrass
do
Season
Poo"ined
Qlasmanirum
Cold
Feb.15-Apr1,
Merl-drairedto
110%
Moderate
4
Indian Woodoets
latilolum
Season
Aug. 15- Oct 15
Droughty
cold
Feb. 15-Apr.1,
Vhf-dratledb
5-25%
Moderate
3
LlrginisWiWrye
Bymuseirginkus
Season
Aug. 15.Oct 15
DroughtV
FastemBot/o-
Colo
Feb. 15-Apr.1,
Wel-drairedto
5 70%
Moderate
3
brush Grass
aftnus horit
Season
Vg.15 - Oct 15
Droughty
cow
Feb. 15-Apr 1.
10.20%
Poody fined
Poor
25
Rough Bentgraa
Agrods scabra
Season
Aa415 - Oct 15
Cold
Feb. 15-Apr 1,
2 5%
Wet drained
Moderate
3 5
Writer 8entgrass
Agrostis try is
Season
Aug.5 - Oct 15
Dec. 1- May 1,
Wetland
110%
Pm drabed
Poor
4
SohRluh
1111cuseNsus
sepi-Novi
Dec.1- May 1,
Welland
1-10%
Poodydraired
Poor
3
shallow Sedge
CaTex gdda
Sep.1- Not 1
Dec. 1- May 1,
WeWnd
110%
PoM
Poor
3
Fox Sled
Canal olden
.1- Not /
Wetland
2-5%
Dec-t Mayt,
Pbokgka , ed
Poor
2
LeaftryRush
Jtncus corisceus
Sep.1- Not 1
* Pick at least four species, including one from each type.
6.24.6
Rev. Sn3
Temp Drive: 15 X 20 with
angles at front
2-3"
coarse aggregate
Figure C06a Gravel entranmilexit keeps sedmwd from leaving the consrucrion site (modified from Ve SWCG).
STONE CONSTRUCTION ENTRANCE
NTS
table 6.10a
temporary seeding
Recommendations for 1 ate
winter and early spring
FROM CATCH RAM
Ncu-uoml /
NBDE THEBAG
DEPTH = D
e �
wum =w
LENGTH = L d a
a
4 "
STANDARD
INSTALLATION DETAIL
SOIL PREPARATION
Proper soil preparation is necessary for successful seed germination and root establishment. It is also necessary for establishment of rooted sprigs, sod and woody plants. Heavily
compacted soils prevent air, nutrients and moisture from reaching roots thereby retarding or preventing plant growth The success of site stabilization and reduction of future maintenance
are dependent on an adequately prepared soil bed. Following are the requirements for preparation of areas to be vegetated by grassing, sprigging, sodding, and/or planting of woody
plants:
General Requirements:
• Preparation for primary/permanent stabilization shall not begin until all construction and utility work within the preparation area is complete. However, it may be necessary to
prepare for nurse crops prior to completion of construction and installation of utilities.
• A North Carolina Department of Agriculture Soils Test (or equal) shall be obtained for all areas to he seeded, sprigged, sodded or planted. Recommended fertilizer and pH
adjusting products shall be incorporated into the prepared areas and backfill material per the test
• All areas to be seeded or planted shall be tilled or ripped to a depth specified on the approved plans, construction sequence and/or construction bid. list. Ripping consists of creating
fissures in a criss-cross pattern over the entire surface area, utilizing an implement that will not glaze the side walls of the fissures. Site preparation that does not comply with
these documents shall not be acceptable. The depth of soil preparation may be established as a range based on the approval of the reviewing state or local agency. Once tilled or
ripped according to the approved plan, all areas are to be returned to the approved final grade. pH modifiers and/or other soil amendments specified in the soil tests can be added
during the soil preparation procedure or as described below.
• All stones larger than three (3) inches on any side, sticks, roots, and other extraneous materials that surface during the bed preparation shall be removed.
Areas to be Seeded:
• Till or disc the prepared areas to be seeded to a minimum depth of four (4) inches. Remove stones larger than three (3) inches on any side, sticks, roots and other extraneous materials
that surface. If not incorporated during the soil preparation process, add pH modifier and fertilizers at the rate specified in the soil test report.
• Re -compact the area utilizing a cultipacker roller. The finished grade shall be a smooth even soil surface with a loose, uniformly fine texture. All ridges and depressions shall be
removed and filled to provide the approved surface drainage. Seeding of graded areas is to be done immediately after finished grades are obtained and seedbed preparation is completed.
Areas to be Sprigged, Sodded, and/or Planted:
• At the time of planting till or disc the prepared areas to a depth of four (4) to six (6) inches below the approved finished grade. Remove all stones larger than three (3) inches on any
side, sticks, roots and other extraneous materials that surface. If not incorporated in the ripping process, add pH modifier, fertilizer, and other recommended soil amendments.
• Re -compact the area utilizing a cultipacker roller and prepare final grades as described above. Install sprigs, sod and plants as directed immediately after fine grading is complete.
Mulch, mat and/or tack as specified.
pH AND NUTRIENT AMENDMENTS
Determining the nutrients that enable seed and container plants to grow, flourish, and become established after planting are critical elements of the design and stabilization process.
The soils tests previously described will provide a recipe for amendments based on particular plants and particular soils. The test results will recommend the amounts of base
elements (nitrogen, phosphorous, potassium), pH modifiers and other trace elements that should to be added to the soil for selected species of seeds and plants.
The acid/base characteristic of the soil is a primary component of soil fertility. If the soil acidity is not in the proper range, other nutrients will be ineffective, resulting in less productive
plant growth. Most plants grow best in a pH range of 6.5 - 7.0 (slightly acidic to neutral). The soil tests will recommend the specific amendments and application rates required to
achieve this range. These amendments must be incorporated into the soil (not applied on the surface) to be effective. (See the General Requirements for soil preparation specifications
and timing for incorporation of soil amendments.)
The base elements are easily found in bulk quantities. Lime can also be obtained in large quantities. They all must be thoroughly incorporated into the soil through appropriate
mechanical means. Ground surface applications without proper soil mixing will result in poor results.
In addition to the base fertilizers, other trace elements are needed to produce healthy and vigorous growth. These include but may not be limited to sulfur, manganese, zinc, boron,
chlorine and molybdenum. If not already included with bulk mixes of the base elements, they can be obtained from commercial suppliers.
Provisions for soils test during and/or after initial grading is complete shall be included on the approved plan, in the approved construction sequence, and on the bid item list utilize
for the project If you did not obtain a soil test: Follow these recommendations for all grasses except centipedegrass.
1. Apply 75 pounds of ground limestone per 1,000 sq. ft.
2. Apply a starter type fertilizer (one that is high in phosphorus) based on the type of grass and planting method. Fertilizer bags have a three -number system indicating the primar
nutrients, such as 8-8-8 or 5-10-10. These numbers denote the N-P-K ratio -the percentage of each nutrient in a fertilizer The percentages are always noted in the following order:
N Nitrogen for green color and growth.
P O Phosphorus for good establishment and rooting.
K O Potassium to enhance pest and environmental stress tolerance.
Some common examples of starter type fertilizers required for a 1,000 sq. ft. area include 40 pounds of 5-10-10, 20 pounds of 10-20-20, or 16 pounds of 18-24-6. For sandy soil:
typical to coastal plain and sandhills of North Carolina, fertilizer rates should be increased by 20 percent.
Where available, it is recommended that the design professional specify organic compounds that meet the fertilization requirements, pH and other element requirements. Initu
studies have indicated that these compounds have a more positive effect on the environment than some of the synthetic compounds used to manufacture inorganic fertilizers. Theti
materials are readily available in the commercial trade as well as found in recycled yard waste debris, sewerage sludge, lime -stabilized sludge and animal manures. Materials propose
for use must be industry certified and/or privately tested and certified to be acceptable for proposed areas of use and application prior to approval.
seeding mixture
species Rate (lb/acre)
Rye (grain) 120
Annual lespedeza (Kobe in
Piedmont and Coastal Plain,
Korean in Mountains) 50
Omit annual lespedeza when duration of temporary cover is not to
extend beyond June.
seeding dates
Mountains -Above 2500 feet: Feb. 15 - May 15
Below 2500 feet: Feb. 1- May 1
Piedmont -Jan. 1 - May 1
Coastal Plain -Dec. 1 -Apr. 15
soil amendments
Follow recommendations of soil tests or apply 2,000 lb/acre ground
agricultural limestone and 750 lb/acre 10-10-10 fertilizer.
mulch
Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
maintenance
Refertilize if growth is not fully adequate. Reseed, refertilize and mulch
immediately following erosion or other damage.
table 6.10b
temporary seeding
Recommendations for
summer
1•F69AR N®® � CURB
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(lF APPUCA13L
DEPTH = D
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wum =w
LENGTH = L a a
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CURB OPENING
INSTALLATION DETAIL
INSTALLATION AND USE GUIDELINES
*M 1WA"MM OF nE WET 8ACKal A CATCH SABN
PULL 7HE GRATE FROM RE CATCH MM NO PLACETHE EM OW N THE CPEWML
4aREP "ICiES OF THE 00 AWW THE FRAW OF THE LAW
-FW"M THE ORATE ON 71E BASH TO KEEP TM BAG N PLACE
4F 8mpB1r rs DOWELING 7W0RANGE REM01r OOMn M IT 6TOE TO BWff TIE NtErWA
To F03KNE THE MET BAG
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{FT THE BAG NO GRATE FROM THE CATCH 11AW
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4NOMA RERAR THROUGH THE 80TW11 STRAPS AND UFF
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CLEM our THE rHAG NO RNBE
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610015 NO CLERK STORE 7HE aa.ET BAGS OUT OF DIRECT SUNLAG T tWrL THE NEXT PRM)Wr
WTMSCSiLL91001WA48THEPROVIO ,NBTALLNRWWAWAMD
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" » " HAKES GEO COMPONENTS
Pit easase4sw- FAX 316747-lean
eHANES',�­E--=l INLET PRO SEDIMENT BAG
WIN,�r
WQVEN FILTER FABRIC
seeding mixture
species
German millet
Rate (Ib/acre)
40
In the Piedmont and Mountains, a small -stemmed Sudangrass may be
substituted at a rate of 50 lb/acre.
seeding dates
Mountains -May 15 -Aug. 15
Piedmont -May 1 -Aug. 15
Coastal Plain -Apr. 15 -Aug. 15
soil amendments
Follow recommendations of soil tests or apply 2,000 lb/acre ground
agricultural limestone and 750 lb/acre 10-10-10 fertilizer.
mulch
Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
maintenance
Refertilize if growth is not fully adequate. Reseed, refertilize and mulch
immediately following erosion or other damage.
SEEDING SPECS
GENERAL NOTES:
I. SEDMAENT FILTER OUTLET SWILL BE 16 INCHES HIGH BUT No TALLER THAN 18 INCHES.
2. CLASS 1 OR 2 RIP -RAP SHALL BE USED AND COVERED WITH 66 NCNES OF NCDOT #5 OR
#57 WASHED STONE ON THE UPSLOPE SIDE.
J. POSTS SWILL BE NO MORE THAN 4 FEET APART.
4. SITE OUTLETS AT ANY POW SMALL CONCEWRATED FLOWS ARE ANTICIPATED AND AT THE
DIRECTiom OF THE INSPECTOR.
5. ONE ACRE MAXIMUM DRAINAGE AREA PER OUTLET.
CLASS 1 OR 2
RIP -RAP
Material
organic Mulches
Straw
Wood chips
Wood fiber
Bark
Corn stalks
Sericea
lespedeza
seed -bearing
stems
nets and Mats'
Jute net
Fiberglass net
Excelsior
(wood fiber)
mat
Fiberglass roving
Table 6.14a
Mulching Materials and Application Rates
Rate Per Acre Quality
notes
1-2 tons
Dry, unchopped,
Should come from wheat or oats;
unweathered; avoid
spread by hand or machine; must
weeds.
be tacked down.
5-6 tons
Air dry
Treat with 12 Ibs nitrogen/ton. Apply
with mulch blower, chip handler, or
by hand. Not for use in fine turf.
0.5-1 tons
Also referred to as wood cellulose.
May be hydroseeded. Do not use in
hot, dry weather.
35 cubic yards
Air dry, shredded or
Apply with mulch blower, chip
hammer -milled, or chips.
handler, or by hand. Do not use
asphalt tack.
4-6 tons
Cut or shredded in 4-6
Apply with mulch blower or by hand.
in. lengths.
Not for use in fine turf.
1-3 tons
Green or dry; should
contain mature seed.
Cover area Heavy, uniform; woven Withstands waterflow. Best when
of single jute yarn. used with organic mulch.
Cover area Withstands waterflow. Best when
used with organic mulch.
Cover area Withstands waterflow.
0.5-1 tons Continuous fibers of Apply with a compressed air ejector.
drawn glass bound Tack with emulsified asphalt at a
together with a non -toxic rate of 25-35 gal/1,000 sq ft.
agent.
Chemical stabilizers2
Aquatain follow
Aerospray manufacturer's
Curasol AK specifications
Petroset SB
Terra Tack
Crust 500
Genaqua 743
M-145
'Refer to Practice No. 6.30, Grass Lined Channels.
2Use of trade names does not imply endorsement of product.
table 6.10c
temporary seeding
Recommendations for fall
TONE
5 oa #57)
MAINTENANCE NOTES:
1. FILTER OUTLETS SHALL BE INSPECTED BY THE nNANCALLY RESPONSIBLE PARTY OR
HIS AGENT WMIEDtATELY AFTER EACH RAINFALL ANO AT LEAST DAILY DURING
PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE *AMEDMTELY.
2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY EVENT THAT HAS CLOGGED
OR REMOVED iI.
3 SEDIMENT DtEPOSrrs SHOULD BE REMOVED WHEN DEPOSITS REACH HALF THE HEIGHT
OF THE RAMER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SH.T
FENCE OUTLET IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING
GRADE. PREPARED AND SEEDED.
STONE WEIR OUTLET DETAIL
NTS
Not beneficial to plant growth.
seeding mixture
species Rate (lb/acre)
Rye (grain) 120
seeding dates
Mountains -Aug. 15 - Dec. 15
Coastal Plain and Piedmont -Aug. 15 - Dec. 30
soil amendments
Follow soil tests or apply 2,000 lb/acre ground agricultural limestone
and 1,000 lb/acre 10-10-10 fertilizer.
mulch
Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt, netting,
or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
maintenance
Repair and refertilize damaged areas immediately. Topdress with 50
lb/acre of nitrogen in March. If it is necessary to extent temporary
cover beyond June 15, overseed with 50 lb/acre Kobe (Piedmont and
Coastal Plain) or Korean (Mountains) lespedeza in late February or
early March.
PROJECT TITLE:
CONRAD FARMS
PHASE 1
CON4AD FARM ROAD FORSM COMITY
PFAFFrOWN, NORTH CAROLNA
OWNER/DEVELOPER:
D.R. HORTON, INC.
4006 OAKS PARKWAY, SUM IM
HUI PONr, NC 27265
J1ESSCA MEYER 9ID-440•-290
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SEAL -
18914 - -
I Engineers Surveyors Planners
70 > ,=
4609 Dundas Drive Greensboro, NC 27407
Phone [phone] Fax 336-854-M76
INE°#�
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FIRM LICENSE #C-0168
PROJECT: 125-308 DESIGN BY: TTS DRAWN BY- TTS
DWG: H:\DRAWINGS\D R HORTON\CONRAD FARMS\PH 1 LOT EROSION CONTROL XO.dwg
SHEET DESCRIPTION:
LOT EROSION CONTROL
SCALE: 1"=60' DATE: JANUARY 31, 2017
REVISIONS:
SHEET No.:
08/26/2019:ADD LOTS: 1-3. 10-12, 16-19, 46-47, 49-50, 52, 185 & 194-197
G 3

NCGOI SELF -INSPECTION, RECORDKEEPING AND REPORTING
EFFECTIVE: 04/01/19
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
NCGO I GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/19
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Anytime when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must Include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
event > 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDOs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part III, Section C, Item (2)(a) of this permit
of this permit.
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization
of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that must be reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(a) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(b) Anticipated bypasses and unanticipated bypasses.
(c) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Division's Emergency Response personnel at [phone], (800)
858-0368 or [phone].
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
•
Within 24 hours, an oral or electronic notification.
deposition in a
e
Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
•
If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
•
Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill or release.
substances per Item
1(b)-(c) above
(c) Anticipated
•
A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
•
Within 24 hours, an oral or electronic notification.
bypasses 140 CFR
•
Within 7 calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass.
(e) Noncompliance
•
Within 24 hours, an oral or electronic notification.
with the conditions
•
Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(1)(7)]
prevent reoccurrence of the noncompliance. (40 CFR 122.41(1)(6).
•
Division staff may waive the requirement for a written report on a
case -by -case basis.
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
The following items pertaining to the E&SC plan shall be documented in the manner
described:
Item to Document
Documentation Requirements
(a) Each E&SC Measure has been installed
Initial and date each E&SC Measure on a copy
and does not significantly deviate from the
of the approved E&SC Plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC Plan.
E&SC Measure shown on the approved E&SC
Plan. This documentation is required upon the
initial installation of the E&SC Measures or if
the E&SC Measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
Plan or complete, date and sign an inspection
Plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC Measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC Measures.
Plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation
In addition to the E&SC Plan documents above, the following items shall be kept on the
site
and available for agency inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make this
requirement not practical:
(a) This general permit as well as the certificate of coverage, after it is received.
(b) Records of inspections made during the previous 30 days. The permittee shall record
the required observations on the Inspection Record Form provided by the Division or
a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
(c) All data used to complete the Notice of Intent and older inspection records shall be
maintained for a period of three years after project completion and made available
upon request. [40 CFR 122.41]
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCG01 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCG01 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization
Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1,14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilintion
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
S. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
S. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
S. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
1 tA
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9MUCTURES CAPACITY To PROVIDE
ADEQUATE HQIBROCAPACITYWTHA
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NOTTOSCNE
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
S. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
PROJECT TITLE:
CONRAD FARMS
PHASE 1
Cot~ FARM ROAD FORSYTH COMITY
PFAFFrOWK NOM CAROLINA
OWNER/DEVELOPER:
D.R. HORTON, INC.
4= ME DEWiAl1 OAKS PAFMAY, SUTE 1D1
HIGH PorTlr, NC 272M
JEBSICA bEYM 90-460-2M
'1�► CARD
vans
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=
-a gineering, Inc.
-Since 1974 -
_ s ".CIA
- - -
I Engineers Surveyors Planners
A 18914
4W9 Dun" Drive Grembom NC 27407
#
""'
Phase 336.854-8877 Fax [phone]
Ili n, "° 0
�j IQr
FIRM LICENSE #C-0168
PROJECT. 125-MB DESIGN BY: TTS DRAWN BY: TTS
DWG: H:\DRAVANGS\D R HORTON\CONRAD FARMS\PH 1 LOT EROSION CONTROL 5.O.d
SHEET DESCRIPTION:
EROSION CONTROL
DETAIL SHEET
SCALE: 1"=60' DATE: JANUARY 31, 2017
REVISIONS:
SHEET NO.:
02/27/2019: ADD LOT 88
08/26/2019-ADD LOTS: 1-3, 10-14 16-19, 46-47, 49-50. 52. 185 dL 194-197
3