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Location: PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue: of 1 Sheets

GENERAL NOTES: Vicinity Map Z
1. BOUNDARY SURVEY INFORMATION PROVIDED BY LANCE SCHAMBACK, PLS. fly o
2. CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION OF ALL _ V
EXISTING UTILITIES (SHOWN OR NOT SHOWN ON PLANS) PRIOR TO ANY GRADING
ACTIVITIES. ANY CONFLICTS SHALL BE BROUGHT TO THE ATTENTION OF THE
ENGINEER. r „
3. OFF-SITE BORROW OR WASTE SHALL COME FROM OR GO TO AN APPROVED SITE. �f W 4 Nh
4. ALL EROSION CONTROL MEASURES MUST BE MAINTAINED UNTIL ALL DISTURBED 'a=
V AV JI / /I I Vv�=� vA vV I \sC�• // 1 I m A �i \ I 1 I I V A A V AREAS HAVE BEEN PERMANENTLY STABILIZED. ADDITIONAL MEASURES MAY BE (A w���
\°O l l / \ l \\ REQUIRED AS SITE CONDITIONS WARRANT. S-pie Rd.
II \ \ V AV 6. ALL STORM5 SEE S C-2 AND IN INLETS EC-3 FOR
PROTECTEDIOBY ONTROL EXCAVATED EDROPAINONS AND LET PROTEDETAILS.
R U�d
\ \ \ V \V AS PER. DETAIL ON SHEET EC-3. SEE SHEET EC-2 FOR STORM DRAIN DATA. z .� .ag 8
146.s-a4_rss� ���- 1-- / A V v A 7. GRADES MAY BE ADJUSTED IN THE FIELD TO OBTAIN BALANCE OF CUT AND FILL. c�Z�'a
1 I enddre ceea LLe ��� A v 0
COORDINATE ANY CHANGES WITH ENGINEER AND SURVEYOR. ALL DRAINAGE FLOW c_w`zJ
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- 1 492 I \ V A V\ A LINES MUST MAINTAIN A MINIMUM SLOPE OF 1%. y w
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TEMP.SEDIINTENC C� �N 0TOU ------ -\^ ME= STABILIZED CONSTRUCTION ENTRANCE
°\ WEIR OUTLETS PER DTLS ON S EC- . \ \kA aeL R ___ -- \\ \ \
A°����' aop AAE ------ v A LIMITS�OF�L A NG A V {� PER DETAIL 6.06 Dote: 05/12/2022
/ I A �. I // 1 \ \ VA dQneK RF ---- �,�-'`A \�\\ V A 1 A �`V A Know what's below. EXISTING CONTOURS
/ AI v A v v - _ - v / / V A \\ TYP. v 1"=100 N
C111 before you dig. PROPOSED coNTouRs z' contours
n 500 / I \ I I F\ \\ \ \\Z o \ --- -� / //�\\ l \\\ \\\\\\ / \\11 -\\ Il \t�� \ -\ -may- TEMP.POROUS BAFFLES Drawn:
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� GRAPHIC SCALE PER DETAIL sss Checked:DLM
-03-03
TEMP.SKIMMER Pr.jot:2019-03-03
PER LET It 6.64 0 25 50 100 A
d Sheet
RIP RAP OUTFACE PROTECTION 1 inch=50 feet IIII C TjI
PER DETAIL 6.41
A 06/16/22
Location: PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue: of 3 Sheets

NARRATIVE: Z
AmityHill LCID, LLC is proposing to ex and the existing Land Clearing & Inert Debris LCID Landfill on TEMP.SKIMMER SEDIMENT BASIN WrnH BAFFLES DATA ��1Yyy
p p 9 p 9 9 ( ) 5. Rough grade site as shown by proposed contours. Stabilize disturbed areas as the site is brought SED. SED. SED. WEIR SKIMMER \/ o
Highway 3 In lredell County, North Carolina. The scope of work will Involve Stripping topsoil & to grade. Once the 24" RCP is intalled and the area around it filled in, contractor to continue SEDIMENT DRAIN. DENUDED MIN.RED. MN.RED. STORAGE STORAGE STORAGE WEIR FLOW TOP TOP BOT. BOT. BOT. SIZE SKIMMER �4
stockpiling, preparing subgrade, grading and seeding. A screening berm will be installed along the diversion around the northern end of the creek per sheet EC-1. The angle for graded slopes and BASIN AREA AREA STORAGE D SURF.ARE DEPTH WIDTH LENGTH LENGTH DEPTH WIDTH LENGTH WIDTH LENGTH BASIN N ORIFICE .�, a
southern property line of the site. Off site areas will be protected from sediment using temporary fills shall be no greater than the angle that can be retained by vegetative cover or other NUMBER ACRES ACRES CF CPS SF F F F F F El (FT) DIA IN
construction entrance, temporary silt fencing with rock wier outlets, temporary double row high hazard adequate erosion control devices or structures. In any event, slopes left exposed will, within 14 1 9.42 9,42 16956 20.06 6521 5.0 58 116 TO 0.97 66 124 3a 96 762.00 2.00 2.50 (*] 4
sediment fencing with rock weir outlets, temporary diversions with straw wattles, temporary slope drains, calendar days of completion of any phase of grading, be planted or otherwise provided with 2 4,48 44fi 8064 9.54 3101 5.0 40 80 3-5 094 46 ea 20 60 74a.00 2.00 175 Ia�r a, �
and two skimmer basins with porous baffles. The limits of construction shall be as shown on plans. temporary or permanent ground cover, sufficient to restrain erosion. The angle for graded slopes pearl Requirements: Freeboard 2o0 Feet
Total disturbed is estimated to be no more than 8 acres. Upon completion all disturbed areas shall be and fills must be demonstrated to be stable. Stable is the condition where the soil remains in its to Yr Stormhtensity rm imx C=Oa to w��..
permanently stabilized with gravel and grass as per the seeding specifications. original configuration, with or without mechanical restraints. Additional measures to control and ALL TEMPORARY SKIMMER SEDMENT BASINS TO BE CONSTRUCTED ASPER DETAL 6.64
sediment may be required by Iredell County Erosion Control Office. �_ie„
Z �y
GENERAL: 6. Contractor to get roadway to final grade so that gravel base can be installed. Site shall be grade.
ht to brought g .s of being g
oC�
A"
The work shall consist of furnishing labor and material, equipment and performing all operations seeded within 7 day � 0 UZ �2
necessary for a complete installation of all work as specified herein and as shown on the drawings. Vl �
7. The Contractor shall sow groundcover (including fertilizer and mulch) on all exposed earth areas
1. Work shall consist of installation of temporary erasion control measures; stripping topsoil, preparing within 14 calendar days following completion of any phase of grading; sow permanent groundcover A Q C
3 o 'z
for all disturbed areas within 14 calendar days following completion of construction or
subgrade, relocation of excess soils located on site to adjacent site placement of stone, concrete & Skimmer Basin#1 Skimmer Basin#2
asphalt; redistribution of topsoil strippings, and permanent seeding. All disturbed areas shall be left development. Contractor shall inspect seeded areas at 14 days after initial seeding and repair all o
other t k b t i with d bi t shall b h d bi t N are areas. Non-stabilized areas sae stabilized w erosion control lanes or oer
in a stabilized condition upon completion of this project. b w~we
acceptable methods as approved by the Engineer. (See Stabilization time frame table this sheet). Okay Okay 1� c
2. The Contractor is expected to examine the site to familiarize himself with site conditions. The 942 Disturbed Area Acres 4.48 Disturbed Area Acres m w
Contractor shall carefully read all the specifications and examine the drawings and details in order to 8. The Contractor shall be responsible for maintaining all sediment and erosion control measures (Acres) (Acres)
thoroughly familiarize himself with the work to be done. Any work shown on the drawings or included throughout the duration of the construction project. Maintenance shall include, but not be limited 2006. Peak Flaw from l O-year Storm lots) 9.54 Peak Flow from 10year Storm(cfs)
in the specifications, or reasonably implied by either, shall be performed the same as if called for by to: cleaning silt out of drain structures, adding extra gravel or riprap; regrading berms/swales
both. and washed out areas; repairing, replacing, or adding silt fence, etc., all as required. 16956 Required Volume ft' 8064 Required Volume ft'
6521 Required Surface Area if 3101 Required Surface Area fte
EARTHWORK:
9. Contractor shall clean all all impacted storm drainage structures, flumes, pipes, culverts, etc. 57.1 Suggested Width ft 39.4 Suggested Width ft
1. A temporary bench mark shall be established on site. prior to final payment. Contractor to clean affected pavement areas daily. Contractor shall 1142 Suggested Length ft 78.8 Suggested Length ft
communicate directly with the Owner or the Owners representative to coordinate the relocation of a L0
2. The Contractor shall be thoroughly familiar with the Erosion Control Sequence as stated hereafter automobiles to prevent damage directly or indirectly as a result of these site improvements. Trial Top Width at Spillway Invert ft 1P 40.Tria Top Width at Spillway Inert ft
rt ft
and shall follow this sequence to insure that no off site pollution occurs during or after construction. Trial Top Length at Spillway Inve 80 Trial Top Length at Spillway Imamft
Any deviation from this stated sequence or plans and details shall have prior approval of the 10. At the end of the project construction and after permanent ground cover is established, the ^Q DO
Owner's Engineer and Iredell County Erosion Control Office. Contractor shall request an inspection from Iredell County Erosion Control Inspector prior to Trial Side Slope Ratio Zl 2 Trial Side Slope Ratio Zl O
I-I
receiving permission to remove all temporary erosion control structures grading these areas as Trial Depth ft (2 to 3.5 feet above grade) 5Trial Depths (2to3.5 feet abigrade) I--I IY
3. Top Soil: Strip all top soil from the area to be graded and stockpile on site for redistribution shown by the proposed contours on Sheet EC-1 and seed all remaining disturbed areas, including 38 Bottom Width It 20 Soll Width ft O
upon completion of grading. any areas of poor quality vegetation. 96 Bottom Length ft 60 Batton Length ft 0 Z
3648 Bottom Area ft2 1200 Bottom Area ft2 J
4. If required, soil borings shall be taken in the area of the building pads by a certified soils engineer 12. Contractor shall "hold the Owner harmless" from financial penalty, which could be invoked by 25607 Actual Volume ft' Okay 10667 Actual Volume fl Okay I� W Lj
and the results reported to the Owner's Engineer. This work shall be done if directed by the Owner's government authority, due to Contractor's negligence. 6728 Actual Surface Area ft2 Okay 3200 Actual Surface Area ftt Okay I� W J
Engineer. I�I�----II Q J
13. Contractor is responsible for performing self-inspections and reporting in accordance with NCDENR Trial Weir Length ft Trial Weir Len gthft I-r-I M 0
5. Fill Dirt shall be placed in the areas indicated on the plan. Fill material shall be free of brush, DWQ General Permit NCG 010000 Section 11.6, paragraph 3. -Trial Depth of Flow ft -Trial Depth dFlewft
rubbish, and other material that will be detrimental to construction of a stable fill. All fill shall be 20.06 Spillway Capacity cfs Okay 9.63 Spillway Capacity A Okay
compacted to a minimum of 95% Standard Proctor with proper moisture control. Maximum thickness SEEDING SPECIFICATIONS: 00
of
of layers of fill to be compacted shall not exceed 8". No slopes shall be steeper than 2:1. The SLOPES 3:1 or FLATTER -Skimmer Size(inches) Skimmer Size Skimmer see(inches) Skimmer See Lu i N O
entire sub-grade after compaction shall be smooth and uniform slope. ac r�I
1. Apply agricultural lime at the rate of 90 Ib/1000 sf.
0.167 Head on Skimmer(feet) (Inches) 0.167 Head on Skimmer(feet) (Inches) a ,c :5
ai Qi
6. Subgrade and fill to be verified and tested by geotechnical engineer. See(114 inch increments)
2. Apply 10-10-10 commercial fertilizer at the rate of 20 Ib/1000 sf. ®Orifice Size(1/4 inch increments) 1.5 �Orifce ments) 1
.5
3. Seed in accordance with the following schedule and application rate: 2.87 Dewatering Time(days) 2 2.79 Dewaterhg Time(days) 2 a
7. Cut Material to be excavated is assumed to be earth and other materials that can be removed by Suggest about 3days 15 Suggest about 3days 2.5
power-shovel, bulldozer, motorized pan, or normal excavating equipment; but not requiring the use DATE TYPE PLANTING RATE 3 3
of explosives or drills. If rock (as defined herein) is encountered within the limits of excavation, the 4 4
Contract Sum will be adjusted in compliance with provisions for "Changes in the Work" of the Aug 15 - Nov 1 Tall Fescue 200 Ib/ac or 7 Ib/1000 sf 5 5 Z
"Conditions of the Contract". When rack is encountered, Contractor shall notify the Engineer F-i ly
immediately; and shall not proceed further until instructions are given and measurements made for Nov 1 - Mar 1* Tall Fescue and 200 Ib/ac or 7 Ib/1000 sf 6 6 O O O-i
the purpose of establishing volume of rock and the value of excavating same. Rock is defined hereby Abruzzi Rye 25 Ib/ac or 1/2 Ib/1000 sf .. 8 8 ~LL� 1--1 �-I C>
as that material which cannot be ripped by a crawler-tractorrated at a minimum of 50,000 lbs. E-
drawbar pull at one mile per hour, pulling a single-tooth ripper. Equipment shall be in good repair, Mar 1 - Apr 15 Tall Fescue 200 lb/cc or 7 Ib/1000 sf Al Volume Per Contour of Basin 1 Area&Volume Per Contourof Basin 2
and shall be in proper working condition.
Apr 15 - Jul 30 Hulled Common or Bermuda 30 Ib/oc or 1 Ib/1000 sf Conic Incremental Conic Total Vol. Conic Incremental Conic Total Vol. �
Rock is further defined hereby as boulders larger than 1/2 cubic yard in size. No payment will be Elevation Area(5F) Vol.(Cu.Ft.) (Cu.Ft.) Elevation Area(SF) Vol.(Cu.Ft.) (Cu.Ft.) i0,
made on the basis of unit-price for rock unless minimum-sized equipment or better is utilized as Jul 15 - Aug 15 Tall Fescue and 200 Ib/ac or 7 Ib/1000 sf 762 4,380.40 N/A 0 bottom 748 1,758.61 N/A 0 bottom � ✓Y W E-
required hereinbefore. Rock work is defined hereby as removal of material by drilling, blasting or Brown Millet or 35 Ib/ac or 7/8 Ib/1000 sf 763 5,337.38 4851.02 4851.02 7qg 2,210.64 1980.32 1980.32 �..� W W Q
wedging. Rock shall be stripped for measurement before excavating, and no rock excavated or Sorghum-Sudan Hybrids 30 Ib/ac or 3/4 Ib/1000 sf 764 6,319.64 5821.60 10672.62
750 Z697.18 2449.88 4430.20
104
loosened before measurement will be allowed or paid for as rock. Measurement and payment, Zr
Y Y 9 9 q * Heavily mulched during January- March period. Coat applied at the rate of 5-7 gal/1000 sf 765 7,327.17 6817.20 17489.82 ^ I_
therefore, shall be b number of cubic aids required to brim the excavation to the required surface 751 3,218.25 2953.88 7384.08 F+�1
or grade as required by the Contract Documents. The Owner may adjust the grades should excessive or 200-300 gal/ac. 766 8,359.97 7837.90 25327.71 752 3,773.94 3492.36 10876.44 a
rock be encountered. 767 9,418.05 8883.76 34211.47 top of berm IWa
753 4,363.95 3776.59 11160.67 top of berm
EROSION CONTROL SPECIFICATIONS 4. Mulch with straw applied at the rate of 75-100 Ib/1000 sf. and anchor with asphalt emulsion � ^ A
Requirements of the Contract Documents a to all work in this section. tack coat applied at the rate of 5-7 gal/1000 sf or 200-300 gal/co.
9 apply STORM DRAINAGE CALCULATIONS:
GENERAL: Provide the work of this section for erosion and sediment control as indicated and SLOPES GREATER THAN 3:1 TO 2:1 AREA SUB CUMM. PIPE MIN. 7y rw�
specified as follows: LOCATION LOCATION SUB INTENSITY FLOW FLOW n SIZE SLOPE F+1 vA
1. Apply agricultural lime at the rate of 90 Ib/1000 sf.
2. Apply 10-10-10 commercial fertilizer at the rate of 20 Ib/1000 sf. FROM TO (AC) C (IN/HR) (CFS) (CFS) VALUE (IN) (%) I w
Construction entrance; rock Wier outlets, temporary sediment fencing, temporary double row high Z
hazard sediment fencing, diversion swales, temporary diversions, straw wattles, skimmer basin 3. Seed in accordance with the following schedule and application rate. FES1 FES2 11.76 D.30 7.in 25.05 25.05 0.013 24 1.22 O A
.� and permanent seeding. DATE TYPE PLANTING RATE *INDICATES BEGINNING OF NEW RUN
� a
a Q
CONTRACTOR'S RESPONSIBILITY: The Contractor shall furnish the Owner a system of temporary Mar 1 - Jun 1 Sericea Lespediza (scarified) & 50 Ib/oc or 11 Ib/1000 sf
controls to minimize soil sediment erosion during the construction period caused by storm water
runoff. Work shall be performed as called for on the drawings and as site conditions warrant. All Z x
Mar - Apr Add Tall Fescue or 150 lb/cc or 3-1/2 Ib/1000 sf
erosion control measures shall be constructed in accordance with the NC Erosion and Sediment Q 5
Control Planning and Design Manual Latest Edition. l-1
Jun - Sep 1** German Millet or 40 Ib/ac or 1 Ib/1000 sf ✓ice' ]may
OWNER'S RESPONSIBILITY: After the acceptance, it is the Owner's responsibility to properly maintain Small-Stemmed Sudan Grass 50 Ib/ac or 1.2 Ib/1000 sf Q f�
the work. py x O
Sep - Mar 1 Sericea Lespediza 70 Ib/ac or 1-3/4 Ib/1000 sf
EROSION AND SEDIMENT CONTROL: The Contractor shall provide erosion and sediment control during (unhulled-unscarified) 150 lb/cc or 3-1/2 Ib/1000 sf w r�
w the period of construction of this project. The Contractor shall protect and maintain the temporary Tall Fescue
erosion and sediment control structures which provide temporary sediment pollution control, as shown Millet or Sudan 20 Ib/ac or 1/2 Ib/1000 sf
on the drawings. The Contractor shall protect and maintain the temporary facilities as necessary to `xv111111rrr1r7
trap soil erosion and sediment pollution created by storm water runoff. Maintenance of these facilities ** Temporary- Reseed September 1 at recommended rates. ` 4 7
shall include, but not be limited to, regrading and filling of washed out areas, adding erosion control p y p :`�' q
blankets, adding silt fence, adding additional wattles and reseeding and mulching of the swales during
the construction period if deemed necessary by the Owner, Owner's Engineer, or the Iredell County 4. Mulch with 3" straw applied at the rate of 50-90 Ib/1000 sf and anchor with asphalt
emulsion tack coat applied at the rate of 5-7 gal/1000 sf or 200-300 gal/cc.
oErosion Control Office.
EROSION CONTROL SEQUENCE: Q`
The following sequence of construction shall be staged as required to provide acceptable erosion and (p f11x`
a sediment control. 7gtr�r It111y
1. Contractor shall arrange a pre-construction meeting with the Owner, the Owner's Engineer, and a NEW STABILIZATION TIMEFRAMES REVISIONS BY
representative from the Iredell County Erosion Control Office prior to any land disturbing activity. An
Erosion Control Plan Approval Certificate shall be displayed and a copy of the approved erosion Site Area Description Stabilization Tlmelrame Exceptions ineoeu counn eery
control plan must be available on site at all times during construction. Contractor shall install all A cM�az2)erasT^ aF
❑ Perimeter dikes,swales,ditches and slopes 7days None
erosion control measures.
High Quality Water(HOW)Zones 7days None
2.Barricade off construction area. Construct access drive which shall receive a minimum of 6" depth
of 2"-3" coarse aggregate in loose measurement at locations shown on the plan. Any sediment Slopes steeper than 3:1 7days If slopes are 10'or less in length and are not
accumulation on adjacent public roads or areas not within limits of construction as a result of steeper than 2:1,14 days are allowed.
this project and traffic from this project shall be immediately cleaned off by the Contractor. bi,Slopes 3:1 or flatter 14 days 7 days for slopes greater than Win length.
_ (Minimum Stabilized Construction Entrance Length = 100' as per detail 6.06.)
�All other areas with slopes flatter than 4:1 14 days None,except for perimeters and HOW Zones.
_ 3.Install/use existing construction entrance, sediment fencing along with rock weir outlets, temporary
diversions with straw wattles as shown on plan sheet EC-1. Install proposed 24" RCP from the
northern clean water diversions to the mouth of the creek per sheet EC-1. Install double row high
hazard sediment fencing along mouth of creek as shown on sheet EC-1. Contractor shall change Data: 05/12/2022
the shape/size of existing pond to allow for increased drainage area. Any diversion swales with
anticipated velocities of greater than 2 ft./sec. shall be matted. Install temporary slope drains for AS
diversion swales entrances into basins. Scale:SHOWN
a Drawn: CLF
*No prefabricated silt fence is to be used on this project.* checked:DLM
v Project:2019-03-03
4. Once all measures are in place, a site inspection by Iredell County Erosion Control Office shall Job:2019-03-03
d be administered prior to any earth moving activities.
a Strip topsoil and stockpile in areas as shown on the plans. Sheet
NOTE: No offsite work shall take place offsite until approval from property owner is in place. -
A 06/16/22
Location: PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue: of 3 Sheets

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snouts be in tailed berwee sorer/�n'1.`w»` V✓ x
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orgn.an n.m<r.e, 6.A < a n<ienrtwo DIAGRAM
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e dorm n. it I a M1 b be based on P - z`^
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�lnr m.Lrrtnc on seoees a DIAGRAM
�j, ;, am aa�m 6 D 6 b b DIAGRAM REVISIONS BY
m besrwr<a�.. „ee.iig o.a b,nma, ti r oaa aPm <. rae<a<oamramrePr«<aemwr<aem
s16 A nwr 6e req a rn dire empling re9air p m rr ma-nasal
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.. S masaege pr a<P e - dew
I .�. After rM1e comib'rig tin areaM1 be xyroperly embiliud remove alON
LOPE EDE OF wan
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S �.� .�.a.iuwr.rm ffumm.xorc:cr axx.ro mmua ire..moome. b�'ci'�r �' -
em, Date: 05/19/2022
M�Maintenanee;.ma coon e<.w<,a.aa.n<r,a<nmmrll.mat«m " „oa ama.,m„re remooea • HARDWARE CLOTH SHOULD TIE AS
F irc »ma m.wr..awnrr.a..Am dorm mrar,awnw a,er r«r,ro ma,sax."�a�ma or,am mm..mm, mLLmx,<r$.a,.,».,.�< INTO THE STEEL POSTS. ,wcxoR slaRr 6 MMINUN Scale:SHOWN
a,<,ollma,.mm.a„omroa,or n,om< IT IS NOT NECESSARY TO Drawn: CLF
m,a,mw. r ,arm `^`" '°I""°""°"°""""°""`"`"""fir"'`" mµa<®m °mgr°,°°awwroTME rm��c. INCLUDE STONE DOWNSTREAM OF Checked:DLM
THE HARDWARE CLOTH
$ aa,r,a,,.,ate®rem,w,m remva. NGED RAINFAu. erar Project:2019-03-03
aaa<aa rm=ea oar. .awm�am,memmax maawa,aamm...rear.,.a as am,a REPAIRS NEEDED E—BE mAOE ImNEDIATay. ,lob:2019-03-03
q a`®,ebmme;m,u``e:. �'oamew srma,°m°,`� nloT To scALE
HIGH HAZARD EEDB TEMPORARY ROCK WEIR sneEC-3
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TEMPORARY SILT FENCE "" PREPARED uSl l-EEEO EED To CONFORI To THE EIEDING GRADE 00.00 JI.J —@J
Location: PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue: of 3 Sheets

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W 4 m=3
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
EQUIPMENT AND VEHICLE MAINTENANCE ONSITE CONCRETE WASHOUT n 4u
THE NCG01 CONSTRUCTION GENERAL PERMIT 1. Maintain vehicles and equipment to prevent discharge of fluids. STRUCTURE WITH LINER
Implementing the details and specifications on this plan sheet will result in the construction 2, Provide drippans under an stored equipment. • Z •u
P Y 0 0 z
activity being considered compliant with the Ground Stabilization and Materials Handling ..T.� ,,, 0
3. Identify leaks and repair as soon as feasible,or remove leaking equipment from the m„ ,,,,
sections of the NCG01 Construction General Permit(Sections E and F,respectively). The project. �� "`"'a z
permittee shall comply with the Erosion and Sediment Control plan approved by the A Q a��
4. Collect all spent fluids,store in separate containers and properly dispose as w
delegated authority having jurisdiction.All details and specifications shown on this sheet 1..� ��o
y g y g j hazardous waste(recycle when possible). a
may not apply dependingon site conditions and the delegated authority having jurisdiction.
5. Remove leaking vehicles and construction equipment from service until the problem
SECTION E:GROUND STABILIZATION has been corrected. • �„"°;�,,C11e :T - � � N 6. Bring used fuels,lubricants,coolants,hydraulic fluids and other petroleum products
Required Ground Stabilization Timeframes aeti ELM
to a recycling or disposal center that handles these materials. �.. �.. ,ten ..•,,,,�,�
Stabilize within this
many calendar Timeframe variations BELOW GRADE ASI WAIT STRICTURE ABOVE GRAl1E VASia11T STRICTURE
Site Area Description days after ceasing LITTER,BUILDING MATERIAL AND LAND CLEARING WASTE _4
land disturbance 1. Never bury or burn waste. Place litter and debris in approved waste containers. Q 00
(a) Perimeter dikes, 2. Provide a sufficient number and size of waste containers(e.g dumpster,trash CONCRETE WASHOUTS Q
swales,ditches,and 7 None receptacle)on site to contain construction and domestic wastes. 1. Do not discharge concrete or cement slurry from the site. o z
perimeter slopes 3. Locate waste containers at least 50 feet awayfrom storm drain inlets and surface J
2. Dispose of,or recycle settled,hardened concrete residue in accordance with local w
(b) High Quality Water 7 None waters unless no other alternatives are reasonably available. and state solid waste regulations and at an approved facility. L, J
(HQW)Zones 4. Locate waste containers on areas that do not receive substantial amounts of runoff 3. Manage washout from mortar mixers in accordance with the above item and in x m >
from upland areas and does not drain directly to a storm drain,stream or wetland. addition lace the mixer and associated materials on im impervious barrier and within w
(c) Slopes steeper than If slopes are 10'or less in length and are p p o w
7 not steeper than 2:1,14 days are 5. Cover waste containers at the end of each workday and before storm events or lot perimeter silt fence. C E1 � o
3:1 provide secondary containment. Repair or replace damaged waste containers. 4. Install temporary concrete washouts per local requirements,where applicable. If an O
CoJ
allowed p Y p 4 PP•
-7 days for slopes greater than 50'in 6. Anchor all lightweight items in waste containers during times of high winds. alternate method or product is to be used,contact your approval authority for
length and with slopes steeper than 4:1 7. Empty waste containers as needed to prevent overflow. Clean up immediately if review and approval. If local standard details are not available,use one of the two
-7 days for perimeter dikes,swales, containers overflow. types of temporary concrete washouts provided on this detail.
(d) Slopes 3:1 to 4:1 14 ditches,perimeter slopes and HQW 8. Dispose waste off-site at an approved disposal facility. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk Z
Zones 9. On business days,clean up and dispose of waste in designated waste containers. sections. Stormwater accumulated within the washout may not be pumped into or ZO 1--1
-10 days for Falls Lake Watershed discharged to the storm drain system or receiving surface waters. Liquid waste must 1--� CD
be pumped out and removed from project. 0 U1
-7 days for perimeter dikes,swales, PAINT AND OTHER LIQUID WASTE 1--1 �
ditches,perimeter slopes and HQW Zones 1. Do not dump paint and other liquid waste into storm drains,streams or wetlands. 6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it x U
(e) Areas with slopes can be shown that no other alternatives are reasonably available. At a minimum,
flatter than 4:1 14 -10 days for Falls Lake Watershed unless 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface Q+ x x
install protection of storm drain inlet(s)closest to the washout which could receive x W E-
there is zero slope waters unless no other alternatives are reasonably available. spills or overflow. W W
Note:After the permanent cessation of construction activities,an areas with temporary 3. Contain liquid wastes in a controlled area. (�
P Y p Y 7. Locate washouts in an easily accessible area,on level ground and install a stone
ground stabilization shall be converted to permanent ground stabilization as soon as 4. Containment must be labeled,sized and placed appropriately for the needs of site. entrance pad in front of the washout. Additional controls may be required by the i
practicable but in no case longer than 90 calendar days after the last land disturbing 5. Prevent the discharge of soaps,solvents,detergents and other liquid wastes from approving authority. I--I � a o
activity. Temporary ground stabilization shall be maintained in a manner to render the construction sites.
8. Install at least one sign directing concrete trucks to the washout within the project
surface stable against accelerated erosion until permanent ground stabilization is achieved. Z A a
limits. Post signage on the washout itself to identify this location.
PORTABLE TOILETS o OU W
GROUND STABILIZATION SPECIFICATION 9. Remove leavings from the washout when at approximately 75/o capacity to limit nn ,
1. Install portable toilets on level ground,at least 50 feet away from storm drains, overflow events. Replace the tarp,sand bags or other temporary structural W W
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the streams or wetlands unless there is no alternative reasonably available. If 50 foot components when no longer functional. When utilizing alternative or proprietary Q co
techniques in the table below: offset is not attainable,provide relocation of portable toilet behind silt fence or place products,follow manufacturer's instructions. U �.
Temporary stabilization permanent stabilization on a gravel pad and surround with sand bags. 10. At the completion of the concrete work,remove remaining leavings and dispose of
•Temporary grass seed covered with straw or Permanent grass seed covered with straw or 2. Provide staking or anchoring of portable toilets during periods of high winds or in high in an approved disposal facility. Fill pit,if applicable,and stabilize any disturbance
other mulches and tackifiers other mulches and tackifiers foot traffic areas. caused by removal of washout. TTk U`
• Hydroseeding • Geotextile fabrics such as permanent soil 3. Monitor portable toilets for leaking and properly dispose of any leaked material.
• Rolled erosion control products with or reinforcement matting Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace 0
without temporary grass seed • Hydroseeding with properly operating unit.
•Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered HERBICIDES,PESTICIDES AND RODENTICIDES
• Plastic sheeting with mulch 1. Store and apply herbicides,pesticides and rodenticides in accordance with label
• Uniform and evenly distributed ground cover EARTHEN STOCKPILE MANAGEMENT ,
restrictions.
sufficient to restrain erosion 1. Show stockpile locations on plans. Locate earthen material stockpile areas at least 2• Store herbicides,pesticides and rodenticides in their original containers with the
• structural methods such as concrete,asphalt or 50 feet away from storm drain inlets,sediment basins,perimeter sediment controls label,which lists directions for use,ingredients and first aid steps in case of z `
retainingwalls 8'ar
and surface waters unless it can be shown no other alternatives are reasonably "s
• Rolled erosion control products with grass seed available. accidental poisoning. �Q,:
3. Do not store herbicides,pesticides and rodenticides in areas where flooding is ���6„`
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of possible or where they may spill or leak into wells,stormwater drains,ground water
- POLYACRYLAMIDES(PAMS)AND FLOCCULANTS five feet from the toe of stockpile. or surface water. If a spill occurs,clean area immediately. REVISIONS BY
1. Select flocculants that are appropriate for the soils being exposed during 3. Provide stable stone access point when feasible. 4. Do not stockpile these materials onsite.
construction,selecting from the NC DWR List of Approved PAMS/Flocculants. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. with the approved plan and any additional requirements. Soil stabilization is defined
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved as vegetative,physical or chemical coverage techniques that will restrain accelerated HAZARDOUS AND TOXIC WASTE
PAMS/Flocculants and in accordance with the manufacturer's instructions. erosion on disturbed soils for temporary or permanent control needs.
1. Create designated hazardous waste collection areas on-site.
4. Provide ponding area for containment of treated Stormwater before discharging �n 2. Place hazardous waste containers under cover or in secondary containment.
a offsite.
%y r 3. Do not store hazardous chemicals,drums or bagged materials direct) on the round.
m 5. Store flocculants in leak-proof containers that are kept under storm-resistant cover !� � NORTH CAROLI NA gg Y g
or surrounded by secondary containment structures. q'" f' Environmental Quality
Dete. 05/1 2/2022
ee:N/A
NCGOI GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19 h-kCLF
Check U
ed_DLM
Project:201 9-03-03
Job:201 9-03-03
Sheet
NCGOI-1.0
- 1 Location. PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue- of 2 sheets

z
0 9
waa�
PART III PART III PART III Q 'A
SELF-INSPECTION,RECORDKEEPING AND REPORTING SELF-INSPECTION,RECORDKEEPING AND REPORTING SELF-INSPECTION,RECORDKEEPING AND REPORTING
z
SECTION A:SELF-INSPECTION SECTION B:RECORDKEEPING SECTION C:REPORTING •0
Self-inspections are required during normal business hours in accordance with the table 1.E&SC Plan Documentation 1.Occurrences that Must be Reported s 115
below. When adverse weather or site conditions would cause the safety of the inspection A Q a°lz
The approved E&SC plan as well as any approved deviation shall be kept on the site. The Permittees shall report the following occurrences: o2.
personnel to be in jeopardy,the inspection may be delayed until the next business day on approved E&SC plan must be kept up-to-date throughout the coverage under this permit. w
which it is safe to perform the inspection. In addition,when a storm event of equal to or (a) Visible sediment deposition in a stream or wetland. �+ N
The following items pertaining to the E&SC plan shall be kept on site and available for I�
greater than 1.0 inch occurs outside of normal business hours,the self-inspection shall be inspection at all times during normal business hours. a
performed upon the commencement of the next business day. Any time when inspections (b) Oil spills if:
were delayed shall be noted in the Inspection Record. Item to Document Documentation Requirements • They are 25 gallons or more,
Frequency (a) Each E&SC measure has been installed Initial and date each E&SC measure on a copy • They are less than 25 gallons but cannot be cleaned up within 24 hours,
Inspect (during normal Inspection records must include: and does not significantly deviate from the of the approved E&SC plan or complete,date
business hours) locations,dimensions and relative elevations and sign an inspection report that lists each • They cause sheen on surface waters(regardless of volume),or a 1_0
(1)Rain gauge Daily Daily rainfall amounts. shown on the approved E&SC plan. E&SC measure shown on the approved E&SC . They are within 100 feet of surface waters(regardless of volume). o
maintained In If no daily rain gauge observations are made during weekend or plan. This documentation is required upon the Q 00
good working holiday periods, and no individual-day rainfall information is Q O N
order available,record the cumulative rain measurement for those un-
initial installation of the E&SC measures or if - Qf
-
attended days (anc this will determine if a site inspection is the E&SC measures are modified after initial (c) Releases of hazardous substances in excess of reportable quantities under Section 311 a o Z
needed). Days on which no rainfall occurred shall be recorded as installation. of the Clean Water Act(Ref:40 CFR 110.3 and 40 CFR 117.3)or Section 102 of CERCLA
"zero" The permittee may use another rain-monitoring device (Ref:40 CFR 302.4)or G.S.143-215.85. a w LI
approved by the Division.
(b) A phase of grading has been completed. Initial and date a copy of the approved E&SC J
li�
(2) E&SC At least once per 1. Identification of the measures inspected, plan or complete,date and sign an inspection � JQ
Measures 7 calendar days 2. Date and time of the inspection, report to indicate completion of the x m
(d) Anticipated bypasses and unanticipated bypasses.
and within 24 3. Name of the person performing the inspection, construction phase.
hours of a rain 4. Indication of whether the measures were operating 00 O
(c) Ground cover is located and installed Initial and date a copy of the approved E&SC o 00
event>1.0 inch in properly, LaO
in accordance with the approved E&SC plan or complete,date and sign an inspection (eoncompance we conditions of permit may endanger ea or e
24 hours 5. Description of maintenance needs for the measure, P g Pe ) Noncompliance with the diti f this it that d health th
6. Description,evidence,and date of corrective actions taken. plan. report to Indicate compliance with approved environment. w Q
(3)Stormwater At least once per 1. Identification of the discharge outfalls inspected, ground cover specifications. a
discharge 7 calendar days 2. Date and time of the inspection,
outfalls(SDOs) and within 24 3. Name of the person performing the inspection, (d) The maintenance and repair Complete,date and sign an inspection report. 2.Reporting Timeframes and Other Requirements
hours of a rain 4. Evidence of indicators of Stormwater pollution such as oil requirements for all E&SC measures z
event 1.0 inch in sheen,floating or suspended solids or discoloration, have been performed. After a permittee becomes aware of an occurrence that must be reported,he shall contact �j z
24 hours 5. indication of visible sediment leaving the site, the appropriate Division regional office within the timeframes and in accordance with the
6. Description,evidence,and date of corrective actions taken. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC other requirements listed below. Occurrences outside normal business hours may also be C tj �(4)Perimeter of At least once per If visible sedimentation is found outside site limits,then a record to E&SC measures. plan or complete,date and sign an inspection reported to the Department's Environmental Emergency Center personnel at(800) ICI Z U
site 7 calendar days of the following shall be made: report to indicate the completion of the reported. �I Qi x
and within 24 1. Actions taken to cleanup or stabilize the sediment that has left corrective action. � � W F
I
ours of a rain the site limits,
event>1.0 inch in 2. Description,evidence,and date of corrective actions taken,and 2.Additional Documentation to be Kept on Site Occurrence Reporting Timeframes(After Discovery)and Other Requirements W W O
24 hours 3. An explanation as to the actions taken to control future In addition to the E&SC plan documents above,the following items shall be kept on the (a)Visible sediment • Within 24 hours,an oral or electronic notification. U
releases• site and available for inspectors at all times during normal business hours,unless the deposition in a • Within 7 calendar days,a report that contains a description of the 1--I U Z
(5)Streams or At least once per If the stream or wetland has Increased visible sedimentation or a Division provides a site-specific exemption based on unique site conditions that make
stream or wetland sediment and actions taken to address the cause of the deposition. tool
wetlands onslte 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: this requirement not practical: Division staff may waive the requirement for a written report on a A (�
(where hours of a rain 1. Description,evidence and date of corrective actions taken,and case-by-case basis.
accessible) event>1.0 inch in 2. Records of the required reports to the appropriate Division (a) This General Permit as well as the Certificate of Coverage,after it is received. • If the stream is named on the NC 303(d)list as impaired for sediment- W Z
24 hours Regional Office per Part III,Section C,Item(2)(a)of this permit. related causes,the permittee may be required to perform additional n A
(6)Ground After each phase 1. The phase of grading(Installation of perimeter E&SC monitoring,inspections Of apply more Stringent practices if Staff w v
stabilization ofgrading measures,clearing and grubbing,installation of storm (b) Records of inspections made during the previous twelve months. The permittee shall W
determine that additional requirements are needed to assure compliance
measures drainage facilities,completion of all land-disturbing record the required observations on the Inspection Record Form provided by the
activity,construction or redevelopment,permanent with the federal or state impaired-waters conditions.
Division or a similar inspection form that includes all the required elements. Use of
ground cover). (b)Oil spills and • Within 24 hours,an oral or electronic notification. The notification a Q
electronically-available records in lieu of the required paper copies will be allowed if r-1
2. Documentation that the required ground stabilization release of shall include information about the date,time,nature,volume and
measures have been provided within the required shown to provide equal access and utility as the hard-copy records. hazardous location of the spill cr release. O in
timeframe or an assurance that they will be provided as substances per Item CJ
soon as possible. 3.Documentation to be Retained for Three Years
All data used to complete the a-NCI and all inspection records shall be maintained for a period (c)Anticipated
above
NOTE:The rain inspection resets the required 7 calendar day inspection requirement. of three ears after project completion and made available upon request. 40 CFR 122.41 (c)Anticipated Areportatleasttendaysbefore the dateofthebypass,ifpossible. p
P q y p q y p ] p p q ( ) bypasses[40 CFR The report shall include an evaluation of the anticipated quality and
122.41(m)(3)] effect of the bypass. l�-I
PART II,SECTION G,ITEM(4) (d)Unanticipated • Within 24 hours,an oral or electronic notification.
bypasses[40 CFR • Within 7 calendar days,a report that includes an evaluation of the
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT pp
122.41(m)(3)] quality and effect ofthe bypass. dl ,
(e)Noncompliance • 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 P g with the conditions • Within 7 calendardays,a report that contains a description of the
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). of this permit that noncompliance,and its causes;the period of noncompliance, 6 ?0'
Non-surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met: 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
(a) The E&SC plan authority has been provided with documentation of the non-surface withdrawal and the specific time periods or conditions in which it will occur. The non-surface withdrawal environment[ao continue;and steps taken or planned to reduce,eliminate,and REVISIONS BY
CFR 222.41(1)(7)] prevent reoccurrence of the noncompliance.[40 CFR 122.41(1)(6).
shall not commence until the E&SC plan authority has approved these items, • Division staff may waive the requirement for a written report on a
(b) The non-surface withdrawal has been reported as an anticipated bypass in accordance with Part 111,Section C,Item(2)(c)and(d)of this permit, case-by-case basis.
(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
properly sited,designed and maintained dewatering tanks,weir tanks,and filtration systems,
(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, W
(e) Velocity dissipation devices such as check dams,sediment traps,and riprap are provided at the discharge points of all dewatering devices,and NORTH CA RO LI N A
(0 Sediment removed from the dewatering treatment devices described in Item(c)above is disposed of in a manner that does not cause deposition of sediment into waters of the United States. t � Environmental Quality
Data 05/12/2022
NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19 raw N
Drawn: CLF
7
Checked:DLM
t? Project:2019-03-03
Job:2019-03-03
Sheet
NCG01-2.0
Location: PUBLICATION OR REUSE OF THESE DRAWINGS OR ANY DETAILS WITHIN MUST BE WITH THE WRITTEN CONSENT OF PIEDMONT DESIGN ASSOCIATES, P.A. Owner: Approved: Date of Issue: of 2 Sheets