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APPROVED: CRP
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CONSTRUCTION SEQUENCE: 1
1 . SURVEYOR IS TO STAKE LIMITS OF CLEARING AND EROSION CONTROL FEATURES FOR THE PROJECT
INCLUDING STOCKPILE AND WASTE AREAS. ENGINEER:
� 2. THE SITE SHALL BE ACCESSED BY THE EXISTING HAUL ROAD, THE ENTRANCE TO THE HAUL. ROAD I5
ON DOC BROWN ROAD.
3. INSTALL ALL REQUIRED SILT FENCING AND SILT FENCE OUTLETS WHERE SHOWN ON THE PLANS. RVVK, PA w
! 101 VY. MAIN STREET, SUITE 292 Zog 4. CLEAR AND GRUB AS NEEDED. REMOVE ALL STUMPS AND INERT LANDSCAPING DEBRIS TO A W
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PERMITTED LC1D FACILITY. GARNER, NC 27529 2
PHONE; 91 � 779-48 4 � 0
5. INSTALL BASINS TO THE DIMENSIONS AS SHOWN. THESE BASINS MAY BE LARGER DUE TO SITE � � �/
CONDITIONS, BUT IN NO CASE SHALL ANY BASIN BE SMALLER AS INDICATED ON THE PLANS. ALL W 9
BASINS SHALL BE EQUIPPED WITH A RISER AND BARREL OUTLET SET TO INVERTS ;AS SHOWN. EACH
OUTLET SHALL HAVE A ROCK APRON COMPOSED OF CLASS B RIP RAP ROCK TO THE DIMENSION i
SHOWN. SURVEYOR 0 ,
I 5, EACH ROCK APRON SHALL HAVE A SILT FENCE OUTLET ON THE ON THE DOWNSLOPE SIDE OF THE
! APRON.
I
7. ALL SIDE SLOPES OF ALL BASINS SHALL BE STABILIZED AND EMERGENCY SPILLWAYS SHALL BE Rom ' P
STABILIZED WITH CURLED WOOD MATTING. 101 W, MAIN STREET, t I f E 202
8- INSTALL ALL DIVERSION DITCHES AND STABILIZE ALL DIVERSION DITCHES WITH THE MATTING REQUIRED GARNER, NC 27529
AS SHOWN ON THE PLANS. PHONE: 91 779-4854
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9. EACH SEDIMENTATION AND EROSION CONTROL DEVICE SHALL BE INSPECTED EVERY WEEK AND AFTER
EVERY RAINFALL EVENT 1/2" OR GREATER. SEDIMENT THAT HAS ACCUMULATED SHALL BE REMOVED SHEETS :
ACCORDING TO THE MAINTNANCE REQUIREMENTS OF EACH DEVICE. IN AREAS WHERE SEEDING IS
REQUIRED, PATCHES OF BARE SOIL SHALL BE STABILIZED.
10. BERMS SHALL BE CONSTRUCTED AS THE PROJECT BEGINS, AND SHALL BE JOINED AND GRADED INTO
:P �
THE SLOPES OF THE SEDIMENT BASINS. AS THE SAND MINE I5 GRADED DOWN, AND THE SEDIMENT `� � �� � � �.� �---1 � T �����
i BASINS WITH RELATED PIPES AND OTHER DEVICES SHALL BE REMOVED ONCE THE GRADES ARE 2 _
FEET BELOW THE BOTTOM GRADE OF THE BASINS. THE BERMS SHALL THEN BE COMPLETED AT � � � � � ��a �` � � � k ��� 1 � � �"`j� �; A. � THOSE LOCATIONS. ET
1 2 202I
11 . THE INTERIOR OF THE PIT SHALL BE EXCAVATED TO A DEPTH OF APPROXIMATELY 20 FEET WITH $ MI I `eIy N G ,..X `" LAND QUA
LITY
I� INTERIOR SIDE SLOPES OF 3:i .
MINING FrRQGRAAM
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-4 SE DIME [11 FATIGNAND EROSION CONTROL DE TA I -S
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CsFIOtJIVtT STABILlZATiON AND.MATERIALS HANDLING PRACTICES FORCQ1fV7P LANCE lillilH w
THE NCGOI CONSTRUCT!ON GENERAL PERMIT _�I flifSlrE CONCK-1E WASFiMT z�p�
implementing the details and specifications off this ptan sheet will result in the construction EQUIPMENT AND VEHICLE MAINTENANCE aTeucTuai �;rl LINER _ �` ��� 1,(2F-
activity being considered compliant with the Ground Stabilization and Materials Handling
Maintain vehicles and equipment to prevent discharge of fluids,
Provide drip pans under any stared equipment.
sections of the NCG01 Construction General Permit(Sections E and F, respectively), The ' ' o.
c r ` t �'Z ry a
perrnittee shall comply with the Erosion and Sediment Control plan approved by the 2, f" *y W r o n "
delegated authority having jurisdiction.All details and specifications shown on this sheet 3. Identify leaks and repair as soon as feasible,or remove leaking equipment from the Q a
ALiLl5t , ZC311 m
may not apply depending on site conditions and the delegated authority having project. b o 52 o
jurisdiction. 4. Collect all spent fluids, store in separate containers and properly dispose as ,,, i� of � ���a i �3 c, .,a�sax, ertrt;aa n-a �:.ap :. :�. as•.. cQ e, <'"' g p#'- �`'� ' eC tr
_ hazardous waste(raCyGIEW}enpoSSllJI �. -T� r a z�rmv � �n jor E�e1t ants '1istru Lion � .r ram# tcODw
w t3
SECTION E.GROUND STABILIZATION5. Remove leaking vehicles and construction equipment from service until the problem
l has been corrected. ����;x ns s,�z;uess � � 2 e L�
Required Ground Stabilization 1 irvtefrarnes Y h � i h e w
6. Brio used fuels lubricants coolants,hydraulic fluids and other petroleum products
em e ,
Stabilize within this g p P
to a recyciing far disposal center that handles these materials. � "� This document roritains the major elements of the recentl rer�iced North Carolina Division Of Water Quality(DWQ) Construction
many calendar >; aY r� aura tiJr sr s J '
Site Area Description Tirtteframe variations ---� ( ) p previous permit(expiration on August 2 �� K
t w 0.
days after ceasing __ - - -- - --� 011)a Sin to summary list below cannot oontain details of every change,t the complae om late Pertnit should be used to assure fall
land disturbance �-~--~~~--_-
1w
a Perimeter
,and 7 None
LITTER,BUILDING MATERIAL AND tANi'i CLEARING VilA5T1= - - __. _ .�__�_�� _.�.._ �
(a) ditches, 1. Dever bur or burn waste. Place litter and debris in approved waste containers. CONCRETE WASFIQV. S implementation. St~ta: f tp. {pd f ta I.IIC[ i7i.�?f 1.E V�JC}/i1fS 5t Ct71lS fi[1C$It3fi
it perimeter slopes 2• Provide a suffielent number and size of waste containers(e.g dumpster,trash I. Do nut discharge concrete or cement slurry from the site.
i
(b) Nigh Quality Water receptacle) on site to contain construction and domestic wastes. 2. Dispose of, or recycle settled,hardened concrete residue In accordance with local l
3. Locate waste containers at feast 50 feet away from storm drain Inlets and surface and state solid waste regulations and at an
`r None Y g approved fact) The inaior change in the Permit from the previous one is the shorter
(NQW}Zones waters unless no other alternatives are reasonably available.
3, Manage washout from mortar mixers In accordance with the above item and in 1) Grattttti Stka Isiltz4itiE:art A times to apply ground stabilization such as mulch,wheat straw,or
(c) Slopes steeper than if slopes are 10'or less in length and are 4. Locate waste containers on areas that do not receive substantial amounts of runoff addition place the mixer and associated materials on impervious barrier and within
p i
3:1 7 not steeper than 2:1, 14 days are from upland areas and does not drain directly to a storm drain,stream or wetland, lot perimeter silt fence. grasses. The NC laws and rules rttlating to the Sediment Act rogaire,Site area Stabilization �;fs l3i lixtt.tiufr 'I'ittte �tt'IcaSt plttci�s,ground stabilization within?1 clays, Based on the new
allowed 5. Cover waste containers at the end of each workday and before storm events or 4. Install temporary concrete washouts per local requirements,where applicable. If an EPA requirements tpla ,grbald stabs l stabilization
wont in 2 a perm asvd lgroup,
-7 days for slopes greater than 50' in provide secondary containment. Repair or replace damaged waste containers. alternate method or product is to be used,contact your approval authority for Description Time Frame 1+ra>nic Eaee turns €� Y
length and with slopes steeper than 4:1 6. Anchor all lightweight items in waste containers during times of high winds. review and approval. If local standard details are not available, use one of the two + perimeter'dikes, CT 4.G,the Division and EPA-developed permit, now contains !
p immediately if temporary concrete washouts provided on this detail requirements for ground cc ,tar within lit,and in sdttte places,es, 7 days.
f
-7 clays for perimeter dikes, swales, 7. Empty waste containers as needed to prevent overflow. Glean u types of rem orar p Swltl�.5; ditches ? da�rg ?tiTtane �(d) Slopes 3:3 to 4`1 l q
ditches,perimeter slopes and NQW containers overflow. 5, too not use concrete washouts for dewatering or storing defective curb or sidewalk silo slopes Z
Zones S. Dispose waste Gaff-site at an approved disposal facility, sections. Stormwater accumulated within the washout may not be pumped into,or l �{
-10 days for Falls Lake Watershed discharged to the storm drain system or receiving surface waters. Liquid.waste must • High uali . �
9. Can business days,clean up and dispose of waste in designated wa.st+?containers. 1✓ � � 2) l3ttrlldiltg 1, ;r��ac ,, $i�tit�tliitt; I � `� � CT) LQ �0
be pumped out and removed from project. ; �i > CD 10
.7 days for perimeter dikes,swales, Water(HQ ) 7 days None � �.
5. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it l LE) o
(e) Areas with slopes ditches,perimeter slopes and HQW Zones PAINT AND OTHER LIQUID WASTE Zones � �flatter than 4:1 14 -10 days for Falls Lake Watershed unless can be shown that no other alternatives are reasonably available. At a minimum, e No paint err'liquid was �.
S in streattt or stt�i In dt'ai r€s C!3 r
1, too not dump paint and other liquid waste into storm drains,streams or wetlands, r p
there is zero sloe install protection of storm drain inlet{s)closest to the washout which could receive If sloes are 10 or ()
Note:After the permanent cessation of construction activities,any areas with temporary 2. Locate paint washouts at least SD feet away from storm drain inlets and surface spills or overflow, s Slopes steeper less in length and arc * Dedicated areas for demolitio Constru�tirnl and other 2 E-- U
round stabilization shall be converted to permanent round stabilization as soon as waters unless no other alternatives are reasonably available. 7. Locate washouts in an easily accessible area,on level ground and install a stone 7 days ' '
g than 3:1 nt�# sieirper than 2:1, wastes must be located 50' fitarn storm drains and streams
( Z --.
3. Contain liquid wastes in a-controlled area. entrance ad in front of the washout. Additional controls may be required b the practicable but in no rase longer than 90 calendar days after the Last land disturbing p y �...,
activity. Temporary ground stabilization shall be maintained in a manner to render the 4. Containment roust be labeled,sized and placed appropriately for the needs of site. approving authority. [ I - 14 days are allowed. unless no.reasonable altt matives available. � Z Z It � 0)
Ld
surface stable against accelerated erosion until permanent ground stabilization is achieved. 5. Prevent the discharge of soaps,solvents,detergents and other liquid wastes from 8. Instal)at least one sign directing concrete trucks to the washout within the project 7-days for slopes • Earthen-material stockpiles must be located 50' Jr Om SCEarm
construction sites. Ilrnits. Post signage on the washout'itself to identify this location. ( Slope-, 3:l or
I 14 days greater than 50 fact drains and streams uh1pss no reasonable alternatives -� lt,i lY �
GROUND STABILIZATION SPECIFICAT`IOP! -_-__ -- 9. Remove leavings from the washout when at approximately 75%capacity to limit flatter ng t�.l �
PORTABLE TOILETS overflow events. Replace the tarp,sand bags or other temporary structural in le th avrt lal�li~.
Stabilize the ground sufficiently so that rain will not dislodge the soil, Use one of the t � I.1.
techniques in the labia below 1. Instait portable toilets on level ground,at least SO feet away from storm drains, components when no longer functional. When utilizing alternative or proprietary L� None * Concrt;te matef'ials must be controlled to avoid contact with Z �
-- products,follow manufacturer's instructions. ` (except for t
Temporarlrstal3igt t;o., ertrc3nerit Stabrfezat,ari streams or wetlands unless there is no alternative reasonably available. if SD foot All other are is sutfaGc Watt.ts rutlartds; or buffers. �i
. a 10. At the completion of the concrete work,remove remaining � a, Z
r�r,�c,r ry grass scab rp�G �.!rnaneot brass seed covt�rc�with.zra%,,Wr offset is not attainable, provide relocation of portable toilet behind silt fence or place p g leavings and dispose of LVttl3 slopes flatter 14 [l t 4 p
other mulches and tarkifec, other mulche5.trnd tackiller5 on a gravel pad and surround with sand bags. in an approved disposal facility, Fill pit,if applicable,and stabilize any disturbance ( titan 4:l c t ttnetets brad
ifydrnseed'+ng i . Geatrextiie fabrics such as permanent soli caused by removal of washout. l[ � it' Zones
2_ Provide staking or anchoring of portable toilets during periods of high winds or in high 3) Discharges try Feaierl�;.-ij4.t:ed XV;ate rs
.istlltra#i crtisnrtrrr+scrrrtraia.prr:n:.: wArlr nr -ntrrtrv[aersWri.•nrattmv- :. ;p;
without temporary grass se-i l Hydroseeding root traffic areas. ,
B=nsions of time inay be approved by the permitting aumonty
.Appropriately applied straw or other mulch + 5hm..lbs or other permanent plantlogs covered 3 Monitor portable toilets for leaking and properly dispose of any leaked material. -_ _
based can weather or ether site-specific conditions that make compliance • Requirements are the same as in previous pet°toil.
a Plastic sheeting with mulch utilize a iicensed sanitary waste hauler to remove leaking portable toilets and replace impracticable."(Section TI.13(2)(b))
• Voiform andevenhf distributed ground cover with properly operating unit. HER11100E5,PESTICIDES AND RODENTICIDES * `ne pemT lit allows Pe[lur,60Tl frorn the 20 acre ininimunt if I
aurfident to restrain eroVon 1. Store and apply herbicides,pesticides and rodenticides In accordance with label lire Director of DWQ determines that {atltei'13 s provide
Structural methods such as concrete,asphalt or t uDire t protection, r�
2. Store herbicides, esticides and rodenticides in their on inal containers with the p DESIGNED: SM M -�
restrictions.
retaining walls
re stalled erasion control products with grass seed p B i _
EARTHEN STDCKPI LE MANAGEMENT label,which lists directions for use,ingredients and first aid steps in case of DRAWN:1. Show stockpile locations on plans, Locate earthen-material stockpile areas at least accidental poisoning. SMM
_ - --- 50 feet away froth storm drain inlets,sediment basins,perimeter sediment controls 3. Do not stare herbicides,pesticides and rodenticides in areas where flooding is APPROVED: C R P
POLYACRYLAKDES(DAMS) AND FLOCCULANTS and surface waters unless it can be shown no other alternatives are reasonably possible or where they may spill or leak into Wells,storrnwater drains,ground water
1. Select flocculants that are appropriate for the soils being exposed during available. or surface water. If a split occurs,clean area immediately.
construction,selecting from the NC DWR List of Approved PAMSIFlocrulonts. 2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of 4. Do not stockpile these materials onsite.
2. Apply floccutants at or before the inlets to Erosion and Sediment Control Measures. five feet from the toe of stockpile.
<� .
3. Apply flocculants at the concentrations specified in the NC DWR fist of Approved 3. Provide stable stone access point when feasible, _ August�, 201�
PAi'V�fS/Flecculants and in accordance with the manufacturer's instructions. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance HAZARDOUS AND TOXIC WASTE
4. Provide ponding area for containment of treated Stormwater before discharging with the approved plan and any additional requirements. Soil stabilization is defined 1. Create designated hazardous waste coliecbon areas on-site.
offsite. as vegetative,Physical or chemical coverage techniques that will restrain accelerated 2. Place hazardous waste containers under cover or in secondary containment. Maur Elements of DWQ Construction General PerMit- Continued
5. Store flocculants in leak-proof containers that are kept under storm-resistant cover Erasion on disturbed soils for temporary or permanent control needs. 3. Do not store hazardous chemicals,drums or bagged materials directly on the ground.
T or surrounded by secondary con#ainment stnjrturt.s.
GO ] ti� J1tiTI� 5T �ILI �� TES J_ I i EF EECTIV . ��( ") ��
m Inspections 6) [conditions in Ertisiun & Sedimentitt.if n (�'nutrol Plans"
PART III ---- P-A i �Ri � I PROJECT
CT
SELF-INSPECTION,RECORDKEEPING AND REPORTING 5FLF-VSPECTION,RECORDKEEPING AND PORNNG i I�esiiEan on lice platys k�llci'tr t17� � atlt� 1�-da}' gr£ltrtiCl € - ----_._�_--- _
PART ill O SaMC weekly impection:refit iminents �rtat t[$eCTtON A:SELF-INSPECTION SECTION 8:RECORDKEEPING SELF-WSPECTION, RECORDKEEI>lNt: "EPORTING stabilization requirements of the NPDES permit apply
Self-inspections are required during normal business hours in accordance with the table 1. E&5C Plan Documentation a ]a=Pain gauge&Inspcclions.after 0.5" rain event Designafion can the plans,where basins that t omply whit tile'. Z
below. When adverse weather or site conditions would cause.the safety of the inspection The a p y p SECTION C:REPORTING approved E&SC Ian as well as an approved deviation shall be kept an the site. The -_ -� I surface-vy`itltdrayita(requirements of the NPDES penrrtit afar
personnel to b in je poard#�the�inspection may be delayed until the next business day on approved E&5C plan must be inept up-to-date throughout the coverage under this permlt. 1.Occurrence:s that Must tie Reported I z� located, 0
* Inspections are only required during tttrmial business Q 99
which it is sae o perform e inspection. In addition,when a storm event of equal to or The following items pertaining to the E&SC plan shall be kept art site and available for Permittees shalt report the following occurrences: ,!
greater than 1.0 inch occurs outside of normal business hours,the self-inspection shall be inspection at all times during normal business hours. hours
performed upon the commencement of the next business day. Any time when inspections
(a) Visible sediment deposition in a stream or wetland.
were delayed shall be hated in the Inspection Record. i Inspection repo y is must be availableran-site dutixtg 7) Building W a ,64'e",laridling NJ L
Item to Document Documentation Requirements (b) oil spills if; business hours unless a site-specific exemption is _ '� � 0 �
- - -- -- (a) Each E&SC'measure has been Inssalled Initial and date each E&SC measure on a cr py • They are 25 gallons or more, approved, 're 0
and does not significantly deviate from the of the approved E&SC plan or complete,date . • a�lo point or liquid wastes in stream or storm draim �
tospect tduf d f: Inspection fwarib Must414We: a They are less than 25 gallons but cannot be cleaned up within 24 hours, * Records must be kept for 3 years and available upon Z
t�fgooNO % locations,dimensions and relative elevations , sign an inspection report that 1€sts each WJ ay
(1)Kwn pugs tialiy i€y rainfall amounm - -- shown on the approved E&SC plan. F&SC measure shown on the approved E&SC a They cause sheen on surface waters(regardless of volume),or regti st. • l �CliGBt CI arCaS far dzr€tt7litipn, CUItgtYllG#fpli ai}Ci otltk r `� 0 Z
maintained in if no.daffy rain garage nbwrvatutrts are made during weekend or plan: This documentation is requred upon the • They are within 1GO feet of surface waters(regardless of volume). * Electronically-available records rt1 bar substituted wastes located 50' froth fitt3t�tt chains and streams unless � I �' �
good working holiday perlads, anti no indivldm-day rainfall lnrorrtue n is I Initial installation of the E&SC Measures Or if "� a
order 3 ilabte,rtcvrd lire tumui>stNit rain measurament for those un• ! udder certain conditions, no reasonalblc alternatives are available. 0
fire E&SC measures are ntadifiad after initial
attendad days (and this watt detwmiae if a site inspection is !
Itastalfation. (c) Releases of hazardous substances in excess of reportable quantities under Section 311 ! e n. Z lU
needrp}, h s❑n v icn no rainfall geared shall be rgcordad as j p i l;'slrt It T7-t1lat�rl3l stockpiles located tOrfl storm he
"zero." - m use another rain-ownitoiin device I � _, �- i of the Clean Water Act(Ref:40 CFR 110.3 and 40 CFR 117 3)or Section 102 of CERCtA I drains unless no reasonable alternatives available. A
av g , (b) A phase of grading has been r_ortcptetetl. Initial and date a copy of the approved EBwC
L_ rr 11. 1 (lief;40 CFR 302.4)or G.S, 143-215.85.
ptanorcomplete,dateandsignartinspection ) ItrTplementatipn Dr-Now
(2) E&SC At:JimaaricePer measuresintMl, c
Measures 7 calendar days inspeetlnn.spec report to eradicate completion of the C
i _ • oncretQ materials inust be ooiltrollod to avoid Contact
construction phase, ¢ wetlands buffers.
and wQtiln 24 of the person perrarmtrogtheinspection, I �„ _� I (d) Anticipated bypasses and unanticipated bypasses, f1r-cr_lects permitted loader the previous portrait can with surface waten, ,
haws of a fair; 14. indication of whether the measures were operating (c) Ground cover is located and instalied Initial apd date a copy of the approved E&SC
w D :i°n in accordance a rillrt fi'a approved E&SC plan or eorrtplete:date and sign an snafiaectivn
;.orlon=te7�aaU [�r� t ;u t,r- u ec conditions.
as t3aur S. e :' LsRn of maintenance needs for the rnea8ur$. Plan, report to indicate compliance with approved (e} Noncompliance with the conditions of this permit that may endanger health or the
P I ep P P R g $ ,.OrTll3lt'tt application-,I'E Ceived prior to ti€cti5t , Z(ll �) Sediment B agiins I � �
�6 G _ c 1,r�Y evidenee,anti date of corrective attlan"s tatrem. i
(3)Stormwater At least once gar 1 id, :r of the dscharge outfails lnsmettd, ground cover specifications T� environment. »r
can follow conditions of approved application•
discharge z ralenclar days z r -oi, nspecu �, (d) The maentenant;e and repair Complete,date and sign an inspection report, r
ovtfails tSnasl and within 24 13. E, ofst ., pjr l]lctlon, requirements for all E&5t measures 2.Reporting Timeframes and Other Re ulrements e Applications received after August ?, 2011 tnttst eeatnplgr
• Outlet structures must withdraw from basin.surface
9 :of�tor�k,ac r� #l�rtin�s �n��oii with near permit conditions, unless drainage area is less than 1 acre.
r,anded sntirss arttlassrlaratinat, have been performed. t After a permittee becomes aware of an occurrence that must be reported,he shall contact
hours of a ralh h E+, i
Cv�nt Y i.0;nCft In 3i
24 hours J �,:esedimert ieawng the site, (e) Corrective actions have been taken initial and date a copy of the approved E&SC � the appropriate Division regional office within the tlmeframes and in accordance with the �
r ,Vince,arrd dal t� of r rettive action s taken. P p g pe rE3' vdfl 7Ccul ants,
_ to EErSC measures, tan or carat fete elate and sign an inspection j ` i 3� 011l D �1
141 Perlmezer oF� nx teasran �tsx r��rrrentaiian isfour,dcsb srrzli;rr;ts. a record
other requirements listed below. Occurrences outside normal business hours may also be � 1� I
site 7 calendar days " swing shaft be made: t report to indicate the comp of the reported to aloe Department's Environmental Emergency Center personnel at{SOf]) i■1
a r .rthln 24 1 A � ,s taken:to clean cep sr smbiltxe the wdlmumt that has,left i corrective action.
fr6i r 3 fair, r .. ['1it5,
In carder for the t S flare to satisfy'the a4rtr ittLltt5 of the Constrtactii�n Lscttmal peanut,it mmt iclentafr.meas where the:ground stabihzation tupmn-ents a X and the
ev, in 2 t evidence,and date of corrective actions taker,and x,Additional C3t3Ctttrientatiort to be Keptan Site locationa of rile basins where the surface-withdrawal.requirements apply.
24 no sr, 3 A ;a nacian as to the actions taken to c6mrai Future
In addition to the 1&5C plan documents above,the following items shall be kept on this }
Cacc rrenre Reporting 7imefrarries(After t7t cn+ery)and tither fteyulremerttffi
(sl streains0r At leastancemr If thr -.-Pam wwatland has int:reased vibrate sedimentatis3n or a site and available for inspectors at all times during normal business hours,unless the -
wetlands unsite 7 caientlar da?ys stria , .,ss vl3lO*incteawd turbidity from the ronsuuction Division provides a site-specific exemption based on unique site conditions that make )`t 57bk,wdiment • Within 24 harms at,wai or electronic notification.
oa offslte and within 24 actry rhen a record of the follxwtno shall be made: q �r,>crsiii�n in a s Within y calendar cloys,a report that contains a description,of the
{where hours of a rain a p err t nr,cvidPflc, ran€bate vF carrectr+rrr actions taken,a.nd this requirement not practical: stream+or wetland sediment and actions taken to address the cause of the deposition,
actessible3 event?i,o inth in 2; I cords of the rr ;forts tt+tlt�apprny:riatc Division
tq hnui9 c R Iona c i�Ee� section C,item 2D(al of thispermit Division staff,may walve the requirement for a written report on a
_. _l_ (a) This General Permit as well as the Certificate of Coveyrage,after it is received. Documcntprepated by the Division of Water Quality
r Af .._.h ,
ease-tiy-case pasts.
tsi U quad ter;e�th phase t: 'rite p •:iilaCinn aF perimeter E&SC'
stahitixatian aF giadtng rdeasures r .^uii} nd grobbing,lostaifation of storm + If the Stream is named on the NC 303td1_llst as impaired for sediment-
measures (b) Records of inspections made during the previous twelve months. The permittee shall related causes,the permittee may be re ,,.drainage FacSlities,campretiun of all tonal-dlsnirbing j gusted to perform additional i
activity,construction at redevelopment,permanimt record the required observations on the inspection Record Form provided by the monitoring,inspections or apply more sir nsent practices if staff C.
ground cover;, Division or a similar inspect on form that includes all the required elements. Use of determine that additional requirements are needed to assure compliance 3t
2. Documenfati equired$round stiO49za9an electron Ica tly-ava€!able records in lieu of the required paper copies will be allowed if with the federal orstate!Tpalred-waters conditions. a
t»easure3 h d _:vide$within the required .•_-^-^^:•--•••,• - _ ---..__.-�_._
L i
timeframe n assuranrethat they will be provided as shown to provide equal access and utility as the hard-copy records. (b)Oil spills and • Within 24 hours,an oral or electronic notification. The notiftcatlon
soot)aspos_r;;,. 3.Documentation to be Retained for Three Years
release of shall include information about the date,time,nature,volume and
- All data used to complete the a-NOl and all inspection records shall be maintained for a period hazardous location of the spill or release.
R 122411 substances pert The raid inspection resets the required 7 calendar dayinspection requirement. of three ears after project completion and made available upon request. I40 CF tem
1 ib)-(c)above_ ____ a
IQ Anticipated • A report of least ten drays before the data if MR bypass,if posslbie. - t!7 �
PART I!;SECTION G,ITEM(4) bypasses 140 CFR The.report shall include an evaluation of that anticipated quality and -" c
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT 122.41(m)(3)) � effect of the bypass.
A (d)Unanticipated . Within 24 hours,an oral or electronic notification.
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down bypass f40 CFR " Wlthrp 7 calendar c#rxys,a report that InClttdos an evaluatlon of the i�a3 � A
122.41(m)(3)1 uality and effect of the byfiass. �=
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare(for example,times with extended cold weather), � - _
Noh surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met: eel Nortcam#sftance . Within 24 hours,an oral or electronic not'!flcaUon.
with the condltioFta . tA[lfhin 7 calendar days,a report that Contains a description of the
�CAI.E:
of this permit that noncompliance,and its reuses;the period of noncompliance,
(a) The E&SC plan authority has been provided with documentation of the non-surface withdrawal and the specificAllme periods or conditions in which it will occur, The non-surface withdrawal may endanger including exact dates and times,and if the noncompliance has not DATE --.2 - 0° 0
shall not commence until the E&SC plan authority has approved these Items, health or the been corrected,the anticipated time noncompliance Is expected to -
fb) The non-surface withdrawal has been reported as an anticipated bypass in accordance with Part Ill,Section C, item(2)(c)and(d)of this permit, environ mentf4o continue;and steps takoh or planned to reduce,er:rrinate,and SHEET NO.:
CFR 122.41(lN7)1 prevent reoccurrence of the noncompliance.140 CFR 122.41(I)(6).
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that Is removed from the sediment basin. Examples of appropriate controls include Division staff may walve the requirement fora written report Dn a
properly sited,designed and maintained dewatering tanks,weir tanks,and filtration systems, case-b -case basis.
(d) Vegetated,upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in item(c)above,
(e) Velocity dissipation devices such as check dams,sediment traps, and riprap are provided at the discharge points of all dewatering devices,and
(f) Sediment removed from the dev�Fa ring.treatment devices described in Item (c)above is disposed of in a manner that does not cause deposition of sediment into waters ofthe Lin t:c1 IS tat--5
1",- CGO E .F- NSPECTION, SEC R KEEPING ANT-) RE 'TINE E 171 , i :( -F1 VE 04,01 /

I
I
6
4
2
jr,
3 11
axe i
&' MAX. 1V
ce
w� ra
_ - VARIABLE AS DIRECTED BY THE ENGINEER
w3c0 w
ix
MITI. 12-1/2 GA z�
�,w6cc
INTERMEDIATE r,0 P q
MIN. 10 GA. WIRES
LINE WIRES -
51 FENICE F RIC ca-
IN ALLE TO ECO D vwj-o a
�CL V)
(nI 0a.
a
�U
=wuw,b�w
B
t = APRON THICKNESS ID# do La, FT. W, FT. t, IN. RIP--RAP CLASS
W = APRON WIDTH
vA A La = LENGTH OF RIP RAP APRON DS1 54" 32 37 3C) B
FRONT VIEW w d PIPE DIAMETER
a -_ OS#2 54" 32 37 30 B
- STEEL POST
DS#3 42" 26 30 24 B ,
--- h`?3VEN PIPE
NOTE '-- SILT FENCE GEVTI_XT)LE FABR$C PLAN VIEW
OS#4 54" 32 37 3O B CV
-USE SILT FENCE ONLY WHEN DRAINAGE AREA ---- 0
DOES NOT EXCEED 1/4 ACRE AND NEVER IN R N FILL SLOPE # FOR REPAIR OF SILT
® WaL tQ
L LINODIO
AREAS OF CONCENTRATED FLOW " � � , FENCE FAILURES, USE G � � � � �
No. AN WASHED STONE. 1. ALL OUTLET STABILIZATION APRONS INSTALLED ON THE SITE SHALL HAVE THE OVERLAYING SOIL � � � � 0
-END OF SILT FENCE NEEDS TO BE TURNED UPHILL. `�'�`� FOR ANCHOR VIfMEN SILT
{ `' , ' REMOVED FROM EACH OUTLET STABILIZATION SITE BEFORE INSTALLING THE RIP-RAP APRON. ANY 5 N 0)
,•,7r GRADE FENCE B PROTECTING FILL THAT MUST BE ADDED SHALL BE COMPACTED TO THE DENISTY OF THE SURROUNDING
CATCH BASIN. � ^
UNDERLYING MATERIAL. INCREASING THE THICKNESS OF THE RIP-RAP APRON SHALL ONLY BE DONE t I✓ U �`
tRlN. COVER
OVER SKIRT ' t AT THE DIRECTION OF THE ENGINEERS. Z F
� O '`-- �I
C` EXTEND WIRE C MIN. INTO TRENCH 1
AND ANCHOR SKIRT A5 2. THE APRON SHALL HAVE ZERO GRADE WITH NO OVERFILL AT THE END. THE TOP OF THE . 0) '--'
DIRECTED sr ENGINEER + DOWNSTREAM END SHALL BE LEVEL WITH THE RECEIVING AREAS. w z W
SIDE VIEW 3. THE APRON SHALL BE INSPECTED WEEKLY AND AFTER ALL RAIN EVENTS. DAMAGED OR ERODED � W O
DOWNSTREAM SHALL BE REPAIRER AND ANY MISSING RIP-RAP SHALL BE REPLACED. Z 3: IL:
FILTER FABRIC ° EL
SHALL BE USED z r
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STANDARD TEMPORARY SILT FENCE OUTLET STABILIZATION DETAIL
I
DESIGNED: SMM c;
DRAWN: SMM
SILT FENCE UNDISTURBED
SPILLWAY CONSTRUCTED OVER APPROVED: CRP
4° MIN. UNDISTURBED GROUND AND ARMORED
WITH RIP RAP r-- '" ` ' s wM
I e SEDIMENT TRAP r "�
DISSIPATER PAD
RIP RAP
TOP OF SILT FENCE NOTES:'
MUST BE AT LEAST 1' `, 1. PROVIDE ALL CALCULATIONS FOR ORIFICE DESIGN,
._. . _ _ a
ABOVE THE TOP OF 2. PROVIDE ANTI-FLOTATION BLOCK CALCULATIONS.
THE WASHED STONE 3. ALL SEDIMENT BASINS SHALL HAVE 2.5: 1 SIDE
;.. a
SLOPES. _ SCREEN ACCESSIBLE THROUGH DOOR
STEEL FENCE POST
4, WEIRS FOR ALL SEDIMENT BASINS SHALL HAVE OUTLET PIPE
WIRE FENCE FRONT VIEW 3, 1 SIDE SLOPES. �`'
Ii BURY WIRE FENCE, 5. ALL DISCHARGING PIPES SHALL BE EQUIPPED WITH -- t PROJECT
HARDWARE CLOTH I1 FILTER FABRIC, FLARED-END SECTIONS, EARTH DAM F
CLOTHHARDWARE
NDWTRENCH
FILTER OF #57 STEEL FENCE POST PLAN VIEW ��`
WASHED STONE � ,
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SET MAX 2 APART CMP TRASH RACK & ANTI-VORTEX DEVICE FLOAT
3' FILTER FABRIC MIN, 18°° INTO SOLID
r�° PAINTED RfD GLEANOUT MARK RISER � FLEXIBLE ,JOINT
O 9g4�°o"a�� ON GROUND GROUND LOCATED 40% UP RISER PIPE
J (RADIATOR HOSE)
FLOW ovo-�g� ° J SKIMMER �70P OF DAPS � W
°Q$O °O�o / WATER LEVEL DURING STORM "" "� OUTLET END: CONNECTION
EMERGENCY SPILLWAY ELEVATION TO OUTLET PIPE OR RISER BARREL PIPE LONGER THAN SHOWN. 92
0
� � ! SEDIMENT ST�JR#�Gr: �"
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AREA MINIMUM SLOPES 2-1/2 1 W '
BURY WIRE FENCE �£3URY 6" OF UPPER EDGE OF -I 11- EARTH DAM I 0
AND HARDWARE CLOTH FILTER FABRIC IN TRENCH J "i I 0 6
SECTION VIEW 3" THICK CONCRETE BLOCK I ~ X v Z
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ANTI-�FLGTATION DEVICE DISSIPATER PAD RIP RAP
I ANT!'-SEEP COLLAR - I�- � Q
I NOES: I- U
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CROSS SECTION CMP ouTLET PIP -� + ' I
1. REMOVE SEDIMENT WHEN HALF OF STONE OUTLET IS COVERED. D 0 0'
I 2. REPLACE STONE AS NEEDED TC ENSURE DEWATERING.
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STANDARD SILT FENCE OUTLET SEDIMENT BASIN W/ RISER AND BARREL STANDARD SKIMMER DETAIL
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. . . . . . NOTES: A C
1. BAFFLE.MATERIAL SHALL BE SECURED AT THE BOTTOM AND SIDES A B C D E F G N USING STAPLES OR BY TRENCHING AS FOR SILT FENCE. 0
SB#
2. MOST OF THE SEDIMENT WILL ACCUMULATE IN THE I S.T BAY, TOP OF RISER INV. IN INV. OUT
WHICH SHOULD BE READILY ACCESSIBLE FOR MAINTENANCE. E
Ytictl 2nct Cc3t 3. 3 BAFFLES SHALL BE PROVIDED(USE TWO TR LESS THAN 2D FEET IN LENGTH). --------
z5/o ut'b�ain 2S/of basin 5 SHALL BE PROVIDED FOR BAFFLES IN DRAFNA013AREAS GREATER THAN 10 ACRES. F * 286,0 234.0 281.0 280.5
su,Faccai'w su�Iaccar�a 1 N/A N/A 80 LF
) r �� , F 4• BAFFLE SHALL BE 700 1_'r/M2 COIR EROSION BLANKET.
f z7 i " S. TOPS OF BAFFLES SHALL BE 2 INCHES LOWER THAN THE TOP OF THE BERMS
2 296.0 294.0 291.8 291.4 300.0 298.0 ?5 LF
basin euilnc ,.::, sitt9 Face a. 6: BAFFLES SHALL BE INSPECTED ONCE A WEEK AND AFTER EACH RAINFALL. II� i
BAFFLES SHALL BE REPAIRED OR REPLACED AS NECESSARY.
_I 304,0 302.0 300.0 299.E 307.0 305.5 80 LF
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A C � I I_`- I e ��` SURFACE DEPTH VOLUME
SUPPORT ROPESUPPORT POST, I I I I d E WEIR RISER BARB ANCHOR ANCHOR SKIMMER ORIFICE �
TO WIRE TO 24 INTO BOTTOM Se# AREA FT CF WIDTH
PLAN VIEW OR SIDE j SQ. FT. ) ) (IN.) SIZE SIZE DIMENSIONS SIZE (IN.) SIZE (IN.
PREVENT SAGGINt;
STAKE TO SUPPORT WIRE � CROSS SE i�TICN � � (---�I�I � ) (FT. )
) (IN.) (C.Y. ltl..E;
FENCE AND FABRIC I I 1 100,000 5 456,771 N/A 54 54 2 8'X 'X10" $ 5.50 �_-
BURIED 1N THE C 3'
H
°x6°TRENCH, STEEL POST MtN. 2 36,00t3 4 125,890 110 54 54 1.5 7'x7'x1O" 8 4.0 ' SHEET NO.:
BACKFILLED AND
COMPACTED I COIR MESH OR SIMILAR . STAPLED OP. 3 22,000 4 52,495 70 48 42 1 6'X6'X9" B 3.25
TRENCHED INTO BOTTOM AND S1DE
CROSS-SECTION OF A COIR PORUS BAFFLE IN A SEDIMENT BASIN.
SECTION VIEW AT OPENING * SB#�1 SHALL HAVE TWO IDENTICAL RISERS, BARRELS, ANCHORS, SKIMMERS AND ORIFICES.
STANDARD BAFFLES DETAIL SEDIMENT BASIN W/ RISER AND BARREL SCHEDULE
8 7 6 5

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D L I GN E D: S M M -
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` , ` \ . * _ :.. I ► 1 �` APPROVED: r`,-�'
SEDIMENT BASIN 2 A
SCALE: 1 "=40'
IN
SURFACE AREA: 36,000 S.F.
SUFACE ELEV.: 296,0' r
I Ql� SPILLWAY ELEV.. 298,0'
TOP OF DAM: 300.0'
PROJECT
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LEGEND
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SEDIMENT BASIN 1 DIVERSION SWALE
SCALE: 1 "=40' SEDIMENT 'BASIN 3 a
SCALE: 1 =4D g
°� SURFACE AREA: 100,000 S.F. —SF —SF —Sr /� SILT FENCE � c
SURFACE ELEV.: 286' MATTING SURFACE AREA: 22,00O S.F. ce A
SPILLWAY ELEV.: N/A SURFACE ELEV.: 304.CO'
TOP OF IMAM; 290' � SILT PENCE OUTLET SPILLWAY ELEV.; 305.5' SC, :
_..._._._ .
TOP OF DAM: 307.0' DATE;
a OUTLET STABLIZATION (RIP RAP ROCK APRON) SKEET NO-
--4 COIR BAFFLES
} CMP RISER W/ TRASH RACK
u-11LE f PIPE WITH FLARED END SECTION
7 -
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