NCG140397_COMPLETE FILE - HISTORICAL_20080122

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NORTH CAROLINA
Department of Environmental Qua!

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STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
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DOC TYPE
HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑
YYYYMMDD

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NOTICE OF INTENT
Division of Water Quality / Surface Water Protection
National Pollutant Discharge Elimination System
��41 NCG140000
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National Pollutant Discharge Elimination System application for coverage under General Permit
NCG140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even if commingled with
stormwater): This N01 is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For existing plant sites discharging or recycling process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities in place. Construction, modification, or installation of any new treatment components
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater Bows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. Tlie authorization to construct or continue to operate will be issued at the
Same time as the Certificate of Coverage (COC) for the NCG14 permit. Design of treatinetft facilities
must comply with requirements of 15A NCAC 2H .0138 & .0139.
Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant
sites requires submission of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified Staff 2 along with this application. A copy of the design
calculations should be included. Please see questions 14 & 15.
I For questions, please contact the D WO Regional Office for your area. (See page 5)
(Please print or type)
1) Mailing address of ownerloperator (address to which all permit correspondence will be mailed):
Name Johnny Maroney _
Street Address P - 0 . Box 2594
City Weaverville State NC ZIP Code 28787
Telephone No. 828 450-4706 Fax: [phone] (call first)
2) Location of facility producing discharge:
Facility Name Blue Ridqe Conc-rete
Facility Contact Johnny Maroney
Street Address 50 Murphy Hill Road
City Weaverville State NC ZIPCode 28787
County Buncombe _
Telephone No. 828 450-4706 Fax: [phone] (call first)
Page 1 of 5
IAs per 15A NCAC 2H .0106
;Unless treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E.
SWU-229-071408 Last revised 7114/08

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NCG140000 N.O.I.
3) Physical location information:
Please provide a narrative description of how to get to the facility (use street names, state road numbers, and
distance and direction from a roadway intersection). From Aaheville. take [iS•19N/US-?3N 10 miles toward weavervi,lle. Take
Exit 17 toward Flat Creek and turn lntt on N Buncombe SChool RME. ACterM3.1e. to o s a s oi cne ri<jnt onto
MUruhv Hill R°i&j, S1Le is 0.2 milga on the left. _
(A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application_)
4) Latitude 35d 43' 34 -83" Longitude 82d 33' 11.37" (deg, min, see)
5) This NPDES Permit Application applies to which of the following:
eNew or Proposed Facility Date operation is to begin 2010
❑ Existing
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 2 7 3
7) Provide a brief description of the types of industrial activities and products produced at this facility:
(Include a site diagram showing the process areas present at this facility.)
Concrete Batch. Plant
8) Discharge points / Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? One
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? Flat Creek
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). N/A
Receiving water classification (if known): N/A
Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must
be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage
under NCG140000 cannot be granted. No new discharges of process wastewater are
permitted in receiving waters classified as WS-I or freshwater ORW.
9) Does this facility have any other NPDES permits?
_01—j?No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
10) Does this facility have any Non -Discharge permits (ex: recycle permits)?
'O>No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11) Does this facility employ any best management practices for stormwater control?
❑ No
0Yes
If yes, please briefly describe: Stormwat er will be directed to a retention basin on -site. Stormwa[ar will not be allowed to flew
into the truck wash out area. and washout fluids will not he allowed Co flow over the bermed ed9c of the truck washout area aad be
discharged with the stormwater.
Page 2 of 5
SWIJ-229-071408 Last revised 7/14/2008

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NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
Yes
If yes, when was it implemented? To be implemented post construction.
13) Are vehicle maintenance activities occurring or planned at this facility?
NONo
❑ Yes
Wastewater Treatment Design Information
14) Are discharges occurring or planned from any of the following process wastewater generating activities?
Vehicle and equipment cleaning ❑ Yes �No
Wetting of raw material stockpiles ❑ Yes VWNo
Mixing drum cleaning ❑ Yes % No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
rVFor a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
aah area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total
Suspended Solids (TSS) — 30 mgll, and Settleable Solids (SS) — 5 mill.) (Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For plants that re Vcle andlor discharge process wastewater:
When applying for this permit, you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOI. For new sites, you must submit three (3) sets of design plans and
specifications with this application and provide supporting calculations that predict
compliance of final discharge with permit limits. For existing sites, applicants should submit
three (3) sets of plans and specs for facilities as -built and provide as many design details as
possible, or submit a detailed diagram of treatment systems in place that includes information
such as tank volumes, dimensions, retention time, piping, settling basin details, eta
Please note: If new treatment systems are planned for an existing site, an ATC will be required
prior to construction of those facilities. Plans/specs/calculations prepared by a P.E. and the
request for an ATC may be submitted with this NOI, or separately at a later date. DWG? may
request the status of your plans for requesting an ATC upon issuance of the COC.
15) Does the facility use or plan to use a recycle system?
❑ No only in a limited capacity depending on the amount of water present within the washout basin. There will not be
1Y�/� Ye$ an effluent discharge from the washout basin,
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
25 year, 24-hr rainfall event
For a recycle system (regardless of when it overflows), please provide plans, calculations, and design
specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of
freeboard in design storm event, etc.)_ )Use separate sheet(s)].
'WNk'— For a sufficient application, the information must demonstrate compliance of final discharge with permit
effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mgA, and Settleable Solids (SS) —5 ml/1), or
must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr
rainfall event plus one foot of freeboard under design operating conditions.
Page 3 of 5
SWU-229-071408 Last revised M412008

_------------
NCG140000 N.O.I.
16) Ar wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
No ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design
requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.)
17) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
0
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
haz rdous waste?
f. �' .
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
ha rdous waste?
— „A
❑ Yes
d) If you answered yes to questions b. are., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
North Carolina General Statute 143-215.6 B(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifios, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shaft be guilty of a Class 2 misdemeanor which may include a tine
not to exceed ten thousand dollars ($10,000).
hereby request coverage under the referenced General Permit. t understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is Iete, aV accurate.]
Printed Name of P rson Signing; / rA��r- �•
Title: Z .CI srvr f
(Siynafure of Applicant)
/2 14IC17
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR
Page 4 of 5
SW U-229-091007 Last revised 09107/2007

NCG140000 N.O.J.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
V Check for $100 made payable to NCDENR.
This completed application and all supporting documentation (including design details and calculations for
V treatment systems).
If an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR)
1 or local designee: documentation verifying applicant has developed and submitted that Plan to the governing
agency (required per 15A NCAC 02H .0138).
For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and
specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a
Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7).
'-771 ❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
1 recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping, settling basin details, etc,
A site map showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of
stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
(e) areas where materials are stored, (f) impervious areas, and (g) site property lines.
A county map or USGS quad sheet with location of facility clearly marked.
Mail the entire package to:
Stormwater Permitting Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit.
For questions, please contact the DWQ Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ...
[phone]
Mooresville Office ...
[phone]
Raleigh Office ........
[phone]
Washington Office ...(252)
946-6481
Wilmington Office ...
[phone]
Winston-Salem ......
[phone]
Central Office .........(919)
807-6300
Page 5 of 5
5WU-229-071408 Last revised 7/14/2008

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C AVA N A U G H
Solutions throu;h integrity and paitnership
December 31, 2007
Mr, Michael Brookshire, CPESC
Buncombe County
Erosion and Sedimentation Control
46 Valley Street
Asheville, NC 28801
Re: Re -submittal of Erosion Control Permit Application for
Blue Ridge Concrete, Inc.
Dear Michael,
Based on your Letter of Disapproval dated December 19, 2007, we have revised the
plans accordingly. Please find enclosed:
a one (1) complete set of revised plays
We have revised the plans according to the following responses in the order they are
listed in the `reasons for disapproval' letter dated December 19, 2007:
1. We have shown additional Limits of Disturbance around the proposed
septic area. This additional area of 0.06 Acres did not change the total
Limits of Disturbance area.
2. We have added applicable notes to Sheet C.3.2 which refer to leaving the
xi�ting erosion control measures intact.
3. The Stormwater plan has been prepared by another firm and our
understanding is that it has been submitted and is under review by the
Buncombe County Stormwater Department.
Thank you for your valuable time in reviewing this re -submittal. Please don't hesitate to
call with any questions.
Sincerely,
CAVANAUGH & ASSOCIATES, P.A.
Larry Lewlson
Enclosures
Cc: Johnny Maroney
Dana Bolden, P.E.

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Blue Ridge Concrete, Inc.
Weaverville, North Carolinw,
Calculations for Retention Sizing, NCDENR
Runoff Volume (using Simple Method)
Requirement to Capture First i Inch of Stormwater and Retain for 2-5 Days
Runoff Volume (in cubic feet) = 3630 * Rp * Rv * Area
RE) = Design Storm Rainfall Depth in inches, assume 1 inch
1 inches
Rv = 0.05 + 0.91A, IA = Impervious Fraction
Impervious Fraction = Impervious ArealTotal Area
Assume Areas of Gravel, Concrete, and Roof are Impervious
Impervious Fraction = IA = 2.72 acres/2.997 acres =
0.91
Rv = 0.05 + 0.9*IA =
0.87
Runoff Volume = 3630 * 1 ` 0.87 * 2.997
9,430 cubic feet
Runoff Volume = 9,430 cubic feet =
70,538 gallons
Runoff Volume =
71,000 gallons
(rounded up)

BLUE RIDGE CONCRETE, INC
MEW CONCRETE PLAINT
BUNCOMBE COUNTY, NORTH CAROLINA
OWNER
BLUE RIDGE CONCRETE, INC
MARK TURNER
MURPHY HILL RD.
P.O. BOX 2594
WEAVERVILLE, NORTH CAROLINA 28787
(252) 946-00791(252) 946-7722 (FAX)
ENGINEER
CAVANAUGH 8, ASSOCIATES, P.A.
1200 CENTREPARK DR. SUITE 100
ASHEVILLE, NORTH CAROLINA 28805
[phone]/[phone] (fax)
SURVEYOR
RANDY A. CARPENTER, PLS
P.O. BOX 567
SPRUCE PINE, NC 28777
[phone]
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LEGEND 6 NOTES
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SITE PLAN
C.3.2
SEDIMENT AND EROSION CONTROL PLAN
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£AOS!ON CONTROL OETAILS
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Solutions through integrity and partnership
OATIT: CECEMaER 2W? PROD. NO.: 0.1!.o3.010 SFim r.

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MEASURING STAKE MARKED ATTER FABRIC
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NOI.E.S: CROSS SECTION
I. USE FOR DRAINAGE AREAS a
NOT EXCEEDING 2 (TWO) ACRES. 4 OVERFILL 6- FOR
2. EARTH BERM SHALL BE STABILIZED wJ SEE13tlTC R� SETTLEMENT
SEf EROSION CONTROL PACKABE A
EMERGENCY
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TRAP. PLACE THE SEDIMENT THAT IS REUQVED IN k DESIGNATED DISPOSAL AREA AND REPLACE THE CONTAMINATEO
CHECK THE STRUCTURE FOR DAMAGE FROM EROSION OR PIPING. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY
TO ENSURE IT IS A MINIMUM OF 1.5 FT. BELOW THE LOW PONT OF THE EMBANKMENT. IMMEDIATELY FILL ANY SETTLEMENT
OF THE EMBANKMENT TO SU%tTLY ABOVE DESIGN GRADE. ANY RIP RAP DISPLACED FROM THE SPILLWAY MUST BE
REPLACED IMMEDIATELY.
Iy' 11 ]17i1►7A W 2/�Iii71A1I�1:�:1'
DETAIL
NOT TO SCALE
SWALE TO DIRECT FLOW AWAY
-� CUMPACILU SOILS MIN FROM EROSION SENSITIVE AREAS 2� �-
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EOUNAI D47 HUGHT s0 CHIWNEiJZE RUNOFF
SUPPLY WATER TO WAS"
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TRACKING CR FLOWING OF SFDIMENT ONTO PVOLIC RIGHT-011 WAYS. THIS kW(
REQUIRE TOP DRESSING. REPAIR MID/OR CLEANOUT OF ANY MEASURES USED
CLEANED PRIOR TO ENTRANCE ONTO PUBLIC
3. WHEN WASHING 15 REQUIRED IT SHALL BE
DONE ON AN AREA STASUI WITH CRUSHED
A. CONSTRUCTION E TTTWaGE/E70T TO BE INSPECTED AND MAINTAINED
TO 2. WHFB1 NECESSARY, WHEELS SHALL 8E
RIGHT-OF-WAY.
STONE THAT DRAINS INTO AN APPROVED
SEDIMENT TRAP OR SEDIMENT DASIN.
AFTER EACH STORM EVENT.
TE1A�)RARY tEL CONSTRUCTION
�l.�XLx
DETAIL
2' MAN.
COMPACTED GRAVEL
•._ tz' MIN.
IigI._ (.
+R . i 3i i'rriklI�i"lA211i -. i-L
a' TYPICAL
NOTE: DIVERSIONS MUST BE MAINTAINED THROUGHOUT CONSTRUCTION
WATER BAR
DETAIL
NOT TO SCALE
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WINTER - EARLY SPRim;
jI`EmNr MIXTURF
Species Rats Ib Acref
Ze (grain) 120
raon lesped4za 50
Omit annual lespede2o when duration of ternporory cover is not to extend beyond June.
Mountains - Above 7500 tt: Feb. 15 to May 15
Below 2500 It: Feb. I to May I
CENT AAIFNT)MFNTS
Follow recommendCtions of soil tests or apply 2,000 lb/Acre ground ogriculturnl liniestane and 750
lb/Acre 10-10-10 fertilizer.
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MA!J4TFNANC£
RefertifiZe if growth is not Imply adaquata. Reseed. Wertilize and mulch immediately following erosion
or other damage_
wRC InICE FILTER FANK
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-
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NARE MY REORTEO REPAIRS W4E01a TLLT.
1. 4ROVLD THE FABRIC EEcounsE OR Kco4E FIErrECrnE PRTan m n+E END Or INL
fryCC1EO USABLE LIFE AND NE BARRIER ETLI DE NECESSART, ritE rAERiC SNALL
sE REPLACED P TS SI T.
3. SEh4ENT UE Fa 5 NG THE FENCE
CE PURIM AFTER WTL &TIXRM E4EI3 r, rAKL DARE
TO AN]ID ,'EF4w:Nc TE FCNCE 11) ONI CLLE wai
•. ARO, E KL DE AND 4ATEIe AILS MID ERR$TABLC AOIIrrr OL RAI TS AND EA M THE
AREA ID ERLI A 5TA6Tl1ZE II AFTER nlE OOIIA:EV TING pRANAC[ AAEa NAS
BEEN aROP[FL+ )TAOILIZED.
TEMPORARY SILT
DETAIL
SCALE: NOT TO SCALE
NOTES.
N1PL: M tMVM 14 GAUGE
' E'ARRIC, SYNINETIC FLnLR FABRIC CERTIFIED AST4 B 646,
• STONE: 14 WASNED STOVE, TO BE PLACED 6' BEEP
• Po$TS: STrEL - MVI. 5' LONG, 1.33 1.0"CAR FT
' VQWL` POSTS ARE TO BE A MAIouUN O' a APART
FM
MTE:
SEE PLANS FOR BuEw.04:
ua0 4ATERIALS r0 BE DSED
NOTES
J 1. L. li LENGRI OF RIP
RAP A11rON
1. FILLER FABRIC SHOIRA
K INS I ALLEII BETILECN RW
IAA AND S FauNaATEON
L.
21 _�ALFE
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2I AR, SrAPLCO DR TRENCHED
INTO BOTTD" OR SOE OF BASN
DAPPLE FENCE
DETAIL
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__...._.__..........
VXAENGINEERING, ENVIRONMENTAL
& CONSTRUCTION SERVICES
Stormwater Management
Wwwwpeeng.Coln
Plan
Blue Ridge Concrete
Weaverville, North Carolina
WPC Project # WPC3407.00168
PREPARED FOR:
Blue Ridge Concrete
50 Murphy Hill Road
Weaverville, North Carolina 28787
PREPARED BY:
WPC, Inc.
2201 Rowland Avenue
Savannah, Georgia 31404
[phone]
January 22, 2008
L[STEN - RESPOND - PERFORM
2201 kowLm) AVFiNUI - SAVANNAH, GA 31404 - TEL [phone] - FAX 912,629.4001
CHARI.F.ST0N • CHAK1,01"rr #A( KSCINVIIA-H • MYRTI.L I$FACII • SAVANNA1{

�•-f.+i7 = 9VJJJ �i��..-s-.-_.�rrsrr. ar....� � ..-..___-.._-.-_-.__
Bhre Ridge Concrete Stornawater rlkmragement Plan JVPC Project # WPC3407.001 d8
Weaverville, North Carolina January 22, 2008
TABLE OF CONTENTS
SECTION PAGE
RECORD OF DOCUMENT REVISIONS................................................................................................. I
I.() INTRODUCTION..........................................................................................................................2
2.0 FACILITY AND CONTACT INFORMATION......................................................................... 2
3.0 SITE DESCRIPTION....................................................................................................................3
3.1 GENERAL SITE FEATURES....................................................................................................3
3.2 SITE DRAINAGE FEATURES.................................................................................................. 3
4.0 CALCULATIONS..........................................................................................................................4
4.1 RUNOFF VOLUME..................................................................................................................... 4
4.2 TRUCK WASHOUT SYSTEM ................................ ....................5
...............................................
4.3 STORMWATER RETENTION BASIN ................................................ ............. 7
5.4 STABILIZATION......................................................................................................................14
GA CONSTRUCTION SEQUENCE AND COST........................................................................... 15
6.1 CONSTRUCTION SEQUENCI: FOR PERMANENT STORMWATER MANAGEMENT
MEASURES
6.2 ESTIMATED COST OF PERMANENT STORMWA`I'EIt MEASURES ................................ 15
APPENDICES
.Appendix 1: Stonnwater Pollution Prevention Plan (SWPPP)
r
l'4 N.M.WpCeng.cofu

Blue Ridge Concrelc Stoninvaler Manage777e711 Plai7
I eaverville, IVorlh Carolina
RECORD OF DOCUMENT REVISIONS
Initial Document Date Prepared
Name Of Preparer:
Revision Number 1
Date:
Signature of Authorized Representative
Revision Number 2
Date:
Signature of Authorized Representative:
Revision Number 3
Date:
Signature of Authorized Representative:
VYC
1W.
�www.wpcen� com
WPC Project ## E,VPC3407.00168
Jani(a y 22, 2008
December 4, 2007
WPC,.Inc.rara�v
67
10907 Downs Road
Pineville, NC 28134
lip
4 ^a AP •e
S y
SEAL = W
January 22 2008
- No,02i400
s -. r
a�eau�na�,ac+
Page I

Blue Ridge Concrele Stornnivaler Managemej?t Plan
Weaverville, Norlh Carolina
1.0 INTRODUCTION
WPC Project # WPC3407.00168
January 22, 2008
The purpose of the construction activity that is the subject of this Stormwater Management
Plan is to build a concrete batch plant that will supply needed concrete to construction
projects in the community. Preparation of this Stormwater Management Plan for the planned
Blue Ridge Concrete facility is a requirement of the Buncombe County Planning and
Development Department. The plan contains facility and contact information, a site
description, stormwater calculations, a narrative that includes the construction sequence and
the estimated cost of permanent stormwater measures, and a copy of the Stormwater
Pollution Prevention Plan (SWPPP) prepared for the facility, which outlines operations and
maintenance procedures associated with the stormwater controls. Site figures are included in
the SWPPP.
2.0 FACILITY AND CONTACT INFORMATION
Facility Title: Blue Ridge Concrete
50 Murphy Hill Road
Buncombe County
Weaverville, North Carolina 28787
Owner Name and Address: Blue Ridge Concrete
50 Murphy Hill Road
P.O. Box 2594
Weaverville, North Carolina 28787
End User Responsible for Annual Inspection, Maintenance, anti Repair of Stormwater
Management System:
Johnny Maroney
Blue Ridge Concrete
50 Murphy Hill Road
P.O. Box 2594
Weaverville, North Carolina 28787
Telephone: [phone]
Email: [e-mail]
Page 2 ,
wwNV. wpceng.corn

Blue Ridge Concrete S10rrJ11vater Management Plan
Weaverville, North Carolina
3.0 SITE DESCRIPTION
IYPC Project # IYPC.3407.00168
January 22, 2008
The Blue Ridge Concrete facility is located to the west of US Highways 19123, off Old Mars
Hill Road in Weaverville, Buncombe County, North Carolina (see Figure I of the SWPPP —
Blue Ridge Concrete Site Topographic Map). The site is bordered to the north by
undeveloped land; to the east by Murphy Hill Road beyond which is undeveloped land; to the
west by a stream beyond which is undeveloped land; and to the south by undeveloped land.
The site address is 50 Murphy Hill Road; however, the address of 110 0ld Mars Hill Road is
also associated with the property.
3.1 GENERAL SITE FEATURES
This property currently consists of approximately 12.95 acres of undeveloped land, of which
approximately 3.93 acres will be developed as the concrete plant that is the subject of this
Stormwater Management Plan. The remaining 9.02 acres will be undisturbed and reserved
for undetermined future development. The 3.93-acre concrete plant will include an office
building, a storage building, a silo and two conveyor belt systems (approximately 0.06 acres
in total). The remaining areas are 2.66 acres of gravel base, including an unpaved parking lot
for employee and concrete truck parking that is planned near the southern boundary of the
concrete plant, 0.277 acres of vegetated, landscaped areas, and 0.933 acres of undeveloped
land. A 50-foot diameter, berriled, truck washout area will be constructed near the fiortheastf
corner of the concrete plant. A stormwater retention area is located at the: south "end of the
property. Refer to Figure 2 for additional site details.
3.2 SITE DRAINAGE FEATURES
The 1997 "Weaverville, NC" United State Geological Survey (USGS) Quadrangle
topographic maps indicates that the slope is in a southwesterly direction across the site with.
the elevation ranging from 2,165 to 2,105 feet above mean sea level (see Figure 1). The
existing drainage pattern in the area of the planned concrete plant is mainly southwesterly
flow in accordance with the topography; however, at the western edge of the area, drainage
flows west through the sloped undeveloped area of the site towards Flat Creek.
The planned drainage pattern is described in the following paragraphs. Surface water (via
the onsite stormwater retention area) will be discharged during the 25-year rain event to an
unnamed existing drainage ditch. Two drainage areas are planned for the site.
Page 3
wtvw.Nvpccnt,xoni

Blue Ridge Concrete Sionnivater Maiiagement Plmi
lveaverville, North Carolina
WPC Project # WPC3407.001 G8
January 22, 2008
• Drainage Area 1 (DAl) drains the gravel and building pad areas. Surface flow is
directed to the stormwater retention area located along the southern boundary of the
concrete plant. The truck washout area is designed not to discharge storinwater or
concrete truck washout water.
C DA2 is located in the vegetated area along the northern boundary of the concrete
plant. The drainage in this area flows southward to the stormwater retention area
located along the southern boundary of the concrete plant.
Based on information provided by the Buncombe County Soil and Water Conservation
District, soils at the site consist of Clifton Series soils. Clifton Series soils consist of very
deep, well drained soils on gently sloping to very steep ridges and side slopes of the Southern
Appalachian Mountains. Slopes are 2 to 95 percent. The soils formed in' residuum
weathered from intermediate and mafic igneous and high-grade metamorphic rocks such as
hornblende gneiss, antphibolite, and gneiss or schist that is high in ferromagnesian minerals.
Near the type location mean annual air temperature is about 51 degrees Fahrenheit and mean
annual precipitation is about 53 inches. Clifton Series soils at the site are in Hydrologic Soil
Group B.
4.0 CALCULATIONS
4.1 RUNOFF VOLUME
The difference between pre- and post -construction runoff volumes was calculated as 15,500
gallons using the Discrete SCS Method. Calculations and applicable reference values are
shown below in Table 1.
Page A
www WPCen�.con1

Blue: Ridge Concrete Stormlvater Management Plan
11"eaverville, North C(IrOlinel
Table - SCS Calculations for Stormwater Runoff
Btuo Ridge Concrete, Inc.
Weavervllle, North Carolina
Calculatlons for Retention Sizing, Buncombe County
A. Runoff Volume (using SCS Method)
Pre -Development
Q• = ((P-0, 2S)2y(P+0.88)
S T (10001CN)-10
CN = Composite Curve Number Using Table 3-5 of NCDENR Manual
(Clifton Series Soil is "Group B" Soil)
WPC Project # PIIPC3407 00168
January 22, 2008
Land thm
Aren
(acres)
Curve Number
(dimensionless)
Area -Weighted
Curve Number
Open' pace, Poor Condition, <50% Grass Cover
d
2.99
79
23
Total
2.997
-
237
Composite Curve Number
7
S = (lowa9}10
P = Design Storm Rainfall Depth, 1-yr, 24-hr (from NOAA)
Q- = ((P-0.2Sf y(P+0.8S)
V = Q' ' A, V = Runoff Volume, A = 2.997 acres
Vrta
S. Runoff Volume (using SCS Method)
Post -Development
Q' = ((P-0.2S)2y(P+D.8S)
S = (WIXIIGN j 10
CN = Composite Curve Number lasing Table 3-5 of NCDENR Manual
(Clifton Series Soil Is "Group B" Soil)
2.66
2.50 inches
0.84 Inches
9,110 cubic feet
Land Use
Area
(acres)
Curve Numbs
dimensionless
Area -Weighted
Curve Number
Roof/Concrete
0.06
9
Gravel
2,66
85
22
Woods (Protected From Grazing; Littcrand Brush Cover Soil)
0.277
55
Is
Total
2.99
Z47
Corn asite Curve Number
N2
S = (10001(;N)-10 = 2.12
P = Design S1olm Rainfall Depth. 1-yr. 24-hr (from NORM 2.50 inches
Q- = ((P-0.2S)2y{P+0.8S) 1.03 inches
V = Q' ' A. V = Runoff Volume, A = 2.997 acres
Vp'r = 11.161 cubic feet
C. Post -Development Volume- Pre -Development Volume
Requirement to Capture Difference Between Post -and Pre -Development Stormwaler and Retain for 2-5 Days
VPW- Vpo = 2,051 cubic feet
VP0% - Vr,14 - 15 338 gallons
VPoU - VF4 = 15,500 gallons (rounded up
4.2 TRUCK WASHOUT SYSTEM
The truck washout system is a conical bermed basin 50 feet in diameter at ground surface and
10 feet deep. The side of the truck Washout basin will be sloped 4,1 to a bottom diameter of
45 feet. Each concrete truck will be washed out at the end of each workday with up to 150
gallons. Wash water will be captured by and retained in the truck washout basin. As water
\v\V kv. W(TCCI1 .Cp111
Page S

Blue Ridge Concrete Storntwater Manageirrent Plan
Weaverville, North Carolina
WPC Project # DVI'C3407.00168
January 22, 2008
accumulates within the basin a floating pump could be used, when sufficient water is present,
as recycle water for truck washout operations. Water�WOLJld then be pumped from the basin
and used to help rinse sediment from the trucks, thereby reducing the total amount of fresh
water used during the process. As needed, maintenance will occur to maintain the basin side
walls and the surrounding berm.
The capacity of the truck washout basin,—118,000 gallons with one foot of freeboard
(-14,000 gallons), exceeds the combined volume (22,500 gallons) of 1) washing operations,
2) one foot of freeboard required by North Carolina Department of Environment and Natural
Resources, and 3) precipitation, resulting from a 25-year 24-Dour storm, 5.25 inches. Even in
the case in which the truck washout basin is filled with 5 feet of washout sediment, 55,000
gallons can be contained in the basin while still maintaining 1 foot of freeboard. Calculations
and applicable reference values are shown below in Table 2,
The truck washout basin, surrounding berm, water level, and the amount of material within
the basin will be inspected and monitored daily. As discussed above, the wash out basin will
fill over time with wash water, rain water in varying amounts, sand, aggregate and minimum
amounts of cement. Once the washout basin has filled with five feet of washout material the
material will be excavated and disposed of properly. if needed, the water within the washout
basin will be pumped from the washout basin into the water storage tank to be used in the
concrete bitching operations. This will accommodate settling of the truck drum contents,
maintain the required free board, as well as allow for potential water use and prevent any
wastewater effluent overflow of the washout collection area.
The facility's standard operating procedure will be to monitor pl-1, by Method 9040C, pl-1
Electrometric Measurement, of the washout collection area on a weekly basis. Based on the
measurements, Flue Midge Concrete will manually adjust the pH in the basin to maintain the
water within the regulated pH limit of 6.0 to 9,0.
min
Page 6
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Rhie Ridge C'oiwreie Slorniivaler Mcrncrgeriient Plan
Ifeaverville, Ne,,rih Cal•oliraa
Table 2: Truck Washout Area Calculations
Blue Ridge Concrete, Inc.
Weaverville, North Carolina
Calculations for Truck Washout System
WPC Project # WPC3407.00168
Awiar y 22, 2008
A, Design Volume = Operating Volume +Design Storm Volume +Volume for 1 foot of freeboard
A,1 Operating Volume
Operating Volume = volume per truck" trucks per day
Assumption: 150 gallonsllruck
Assumption: 10 trucks/day
Operating Vorume (per day)=
Or
A,2 Design Stone Voluma
Design Stone Volume - Surface Area ` Design precipitation Depth
Surface Area = Tr-7
r = 25 feet for 50-foot-diameter Basin
Surface Area =
Design storm is 25-year, 24-hour storm
Design Preap0lation Depth is 5.25 inches based on NOAA data for area
Design Storm Volume = 1,963 square feet' 5.25 inches' t foodl2 inches
Design Storm Volume -
Or
A.3 Volume for 1 Foot of Freeboard
Volume of Frustrum of Right Circular Cone = tr,2 + r, r2 +r22)h13
r, - 25 feet
r2 = 24.75 feet for 50-foot-diameter hole with 4:1 slope
h - 1 fool of freeboard
Volume of 1 foot of freeboard (assumes worst case: freeboard is top 1 foot of conical basin)
Volume
Or
AA Required Design Volume
Required Design Volume - Operating Volume + Design Storm Volume + Volume for 1 foot of freeboard
Required Design Volume -
Or
B. Required Depth of Washout Basin
Depth = It = 3V/(m(r,2 + r, r2 +r22))
Depth =
C, Total Volume of Washout Basin
Volume = Lower 9 feet (maintaining 1 foot of freeboard)
r, _
r2 =
Volume -
Or
D. Volume of Washout Basin if bottom filled with 5 feet of sediment
Volume - From 1 to 5 feet below ground surface (maintaining 1 foot of freeboard)
r,
r2 =
Volume
Or
4.3 STORMWATER RETENTION BASIN
1,500 gallons
201 cubic feet
1,963 square feet
659 cubic feet
6,424 gallons
25 feet
24.75 feet
1 fact
1,944 cubic feet
14,541 gallons
22,464 gallons
3,003 cubic feet
1.5 feet
24.75 feet
22.5 feet
t5,793 cubic feet
t18,131 gallons
24.75 feet
23.75 feet
7.391 cubic feet
55,284 gallons
The stormwater retention basin is designed to be 200 feet long and 30 feet wide at the
surface, and S feet deep with sides constructed with 3:1 slopes. Its construction volurne,
Page 7
ww��.�wpern�;.col I t.

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
WPC Project # WPC3407.00168
January 22, 2008
exceeds the Buncombe County requirement to retain the difference between the pre -
construction runoff volume and the post -construction runoff volume (15,500 gallons), The
volume of the retention basin also exceeds the state requirement to capture at least the first
one inch of stormwater resulting from a 1-year 24-hour storm at the site (71,000 gallons).
The results of the HydroCAD Modeling assessment are shown below.
Ashevdie Concrete pre - HydroCAD 0.50 Sampler (5 nude atn 15097)
ti -
iL— -
ANrswb Concrete Pre Asheville Conueta POst
A=8.46 Y-9.92 51.07
am" _ax
Page 8

Blue Ridge Concrete Sto+-nnvater Management Plan
9'eaverville, North Carolina
WPC Project # WPC3407.00168
January 22, 2008
Table 2: Pre -Construction Input Data Summary
Summary for Sub catch menlIS: Sheet Flow
Runoff = 2,09 cfs @ 12.25 hrs, Volume= 0.209 af, Depth= 0.84"
Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-26.00 hrs, dt= 0.05 hrs
Type II 24-hr 1-Year 24-Hour Rainfall=2.50"
Area (ac)
GN
Description
0.277
79
<50% Grass cover, poor, HSG B
2.720
79
<50% Grass cover, poor, HSG B
2.997
79
Weighted Average
2.997
Pervious Area
Tc
Length
Slope
Velocity
Capacity Description
(min)
(feet)
(ft#t)
(fttsec)
(cis) _
J 1.5
41
0,3415
0.46
Sheet Flow, Steep Sheet
Grass: Short n= 0.150 P2= 3.50"
27.5
491
0.0326
0.30
Sheet Flow, Sheet
Crass: Short rF 0.150 P2= 3.50" _
29.0 532 Total
r
Type It 24-hr 1-Year 24-Hour
2 Rainfall=2.50"
Runoff Area=2.997 ac
Runoff Volume=0.209 of
Runoff Depth=0.84"
Flow Length=532'
Tc=29.0 min
CN=79
0 1 2 3 4 5 6 7 8 0 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
Figure 1: Hydrograph for Sheet Flow prior to Construction for 1-Year 24-Hour
Event
Page 9

Blue Ridge Concrefe Slorrnwater Management Plan
Weaverville, North Carolina
AsAwdk [.node Past - My& CAD 0.50 Sa.pin 45 node :fn M97) .t
41 ---.-— — -
m-rM CanaMR PaN I ASIN A Carcnft ►Is 11
*4M N—fWao I:M
WPC Project # WPC3407.00168
January 22, 2008
"" -us
?JC
Table 3: Post -Construction Input Data Summary -- Sheet Flow
Summary for Subcatchment 15: Sheet Flow
Runoff — 5.54 cfs @ 11.98 Ms, Volume= 0.269 af, Depttw 1.05"
Runoff by SCS TR-20 method, UH=SCS, Time Span-- 0.00-24.00 hrs. dt= 0.05 hrs
Type II 24-hr 1-Year 24-Hour Rainfall=2.50"
Area (ac)
CN
Description
0,277
55
Woods, Good, HSG B
0.060
98
Paved parting & roofs
2,720
85
Gravel roads HSG B
1057
83
Weighted Average
2.997
Pervious Area
0.060
Impervious Area
Te
Length
slope
Velocity
Capacity Description
(min)
(feet)
(fVfl)
(ft)sec)
(cfs)
3.2
41
0,3415
0.21
Sheet Flow, Steep Sheet
Woods: Light underbrush n= 0.400 P2= 3.50"
3.4
491
0.0326
2.40
Sheet Flow, Sheet
Smooth surfaces n= 0.011 P2= 3.50"
6.6 532 Total
N YA
Page 10
Wkv%%.t,,i., I, 1 r,

Blue Ridge Concrete Storfrlwater Management Plan
Weaverville, North Carolina
WPC Project # WPC3407.00168
January 22, 2008
� Rana
Type II 24-hr 1-Year 24-Hour
Rainfall=2.50"
Runoff Area=3.057 ac
Runoff Volume=0.269 of
Runoff Depth>1.05" I
Flow Length=532'
Tc=6.6 min
CN=83
i
0
tl 1 2 3 ! 5+ 7 B 9 10 11 IZ 13 14 15 15 17 18 19 26 21 22 23 24
ram. i„o.,.l
Figure 2: Hydrograph for Sheet Flow following Construction for I -Year 24-Hoar Event
Table 4: Post -Construction Input Data Summary - Retention Pond
Summary for Pond 2P! Retention Pond
InflowArea = 3.057ac, 1.96%Impervious, Inllo Depth> 1.05" for 1-Year 24-Ftourevent
Inflow = 5.54 cfs 11 98 hrs, Volume= 0 269 of
Outflow = 0.00 cis 0 00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min
Primary - 9,00 cfs ® 0.00 hrs, Volume= 0,009 of
Rot,4ing by Stor-Ind melhod, Time Span= 0.00.24.00 hrs, dt= 0.05 hrs
Peak Elev= 2,065.91' ® 24.00 hrs Surf.Area= 0.144 ac Storage= 0,268 of
Plug -Flow detention time- (not calculated: in:Ual storage excedes outflow)
Center -of -Mass det. time= (not calculatedno outflow)
Volume Invert Avall.Stornge Storage Description
#1 2,064-00' 0,729 of 30.00'W x 200.001 x 5.00'H Prismatold Z=0.3
Device Routing Invert Outlet Devices
41 Primary 2,069,00' 6.0' long x 4.0' breadth Broad -Crested Rectangular Weir
Head (feet) 0 20 0.40 0.60 0.80 1.00 1 20 1.40 1.60 1.80 2.00 2.50 3.00 3.50
4.00 4.50 5.00 5 50
Coe(. (English) 2.38 2.54 2.69 2.68 2.67 2.67 2.65 2.66 2.66 2.68 2.72 2.73 2.76
2.79 2.88 3.07 3.32
PrimaryOutFlow Max4.00cfs@0.00hrs FIW=2,064,00' (Free Discharge)
L1=13road-Crested Rectangular Weir (Controls 0.00 cfs)
Page 11

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
3
2
WPC Project # WPC3407.00168
January 22, 2008
5 N cry Pm„
Inflow Area=3.057 ac
Peak Elegy=2,065.91' '
Storage=0.268 of
0 t 2 ] A 5 n 7 ® 0 io 1i U 13 14 15 10 17 IS 19 70 71 77 77 74 - — -�
Figure 3: Hydrograph for Retention Pond Flow following Construction for 1-Year 24-
Hour Event
i
I
e
-'wN'YA-
www.WpCeII., , 0111
Figure 4: Storage Volume for Retention Pond based on Elevation
Page 12

Blue Ridge Concrete Stornmater Management Plan
Weaverville, North Carolina
WPC Project # WPC3407.00168
January 22, 2008
Table 5: Post -Construction Summary — Retention fond (Multiple Events)
Events for Pond 2P: Retention Pond
Event
inflow
(cfs)
Primary
(cfs)
Elevation
(feet)
Storage
(acre-feet)
1-Year 24-Hour
5.54
0.00
2,065.91
0.268
2-Year 24-Hour
T65
0.00
2,066.62
0.372
5-Year 24-Hour
10.93
0.00
2,067.73
0.535
10-Year 24-Hour
13,62
0.00
2,068.64
0.673
25-Year 24-Hour
17.32
0.47
2,069.12
0.729
fton*" pow 66Mw
1 Srore e
IYgYYC gMg11vNy
Figure 5: Storage Volume Required based on Design Outflow —1-Year 24-Hour Event
Page 13
wtivN%'.wPCeII".corr►

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
5.0 STABILIZATION
WPC Project # WPC3407.00168
January 22, 2008
a.wn Id.]
Figure G: Discharge Rate based on Water Elevation
Methods used to stabilize the site include the following:
1. Maintaining a gravel bed across unpaved and non -landscaped areas of the site to
reduce the potential for ponding and promote flow to the Stormwater retention area.
2. Maintain rip rap at the discharge (west end) of the stormwater retention area to
control flow, particularly during storm events.
3. Maintaining a grassy retention basin and a grassy berm around the truck washout
basin.
Page 14
%VWxV.WPCCD:"

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
6.0 CONSTRUCTION SEQUENCE AND COST
WPC Project # WPC3407.00168
January 22, 2008
6.1 CONSTRUCTION SEQUENCE FOR PERMANENT STORMWATER
MANAGEMENT MEASURES
Construction of the permanent stormwater management measures will be completed prior to
initiation of concrete plant operations.
6.2 ESTIMATED COST OF PERMANENT STORMWATER MEASURES
The estimated cost of the permanent stormwater measures is as follows:
Materials $5,000
Installation $15,000
Total Estimated Cost $20,000
Page 15
wvww.wprc11g.ccx11

TOPS! map pnnte(i on I I/IZ/i)7 from '"Norm Carolina.tpo" ana "UnaUea.tpg"
82,35.000' W 82*34.000W 92-33.000' W 62032.000' W WGS84 82'31.000' W
ate
q� A
IM
_ l ,ter 1 - s.,� c� • . .� ? ` r-, N
-17
Z.
Subject Property
' � ��L y �:.f li7u +I- •• C ram. '.!.
IPA
A.
J.
se El
Pal
sJ�• , � -. '1``I � }L � .- _ � \ '%J � � _., '\ - .ter �� v ,. ,- -
`vt _ f:
t . •
v
1R } � a: � � 4� - .�,•/ . � ,,,:. _ �.-,� , l� - --tip• ��- Dult•�d��l� `-,�'~ .. '� _
82*35,000, W 82134.000' W 82-33.000' W 82^32.0ou, w WGS84 82-31A00' W
61 mEt lcel U ._. SD7,_ _-?nflo eal llAS
Pnatad f —TOPOI 40=1 Nuintal L:engrpine HAWW (—.topo.com)
10907 Downs Road Blue Ridge Concrete Site Topographic Map
WPC ENGINEERING, ENVIRONMENTAL Pineville, NC 28134 50 Murphy Hill Road
& CONSTRUCTION SERVICES Phone [phone] Weaverville, Buncombe County, North Carolina
0 dAN Fax [phone] Source: National Geographic TOPO "Weaverville, NC" 1997 USGS
SCALE: As Shown DATE: 11/12/2007 1 PREPARED BY: MEF1 PROJECT NO: WPC3407.00168 FIG. NO: 1

APPENDIX N
STORMMIAT ER POLLU 1 RUN PREVENTION PLAN

Stormwater Pollution
Prevention Plan
Blue Ridge Concrete
Weaverville, North Carolina
WPC Project # WPC3407.00168
PREPARED FOR:
Blue Ridge Concrete
50 Murphy Hill Road
Weaverville, North Carolina 28787
PREPARED BY:
WPC, Inc.
2201 Rowland Avenue
Savannah, Georgia 31404
[phone]
.January 22, 2008

Blue Ridge Concrete Stormwcater Management Plan
WPC Project 4 WI'C3407.00168
Weaverville, North Carolina
January 22, 2008
TABLE OF CONTENTS
SECTION
PAGE
RECORD OF DOCUMENT REVISIONS ........................................ ...................................
....................... I
PROFESSIONAL.
ENGINEER'S CERTIFICATION...............................................................................2
1.0
INTRODUCTION...........................................................................................................................3
2.0
FACILITY INFORMATION........................................................................................................3
3.0
SITE DESCRIPTION...........................................................................................................----......4
3.1
SITE CONDITIONS....................................................................................................................4
3.2
EXISTING SITE DRAINAGE 1'EATURES................................................................................4
4.0
SOURCE POLLUTANTS.........................................................................................I....................5
4.1
SOURCE IDENTIFICATION.....................................................................................................5
4.2.
MATERIAL INVENTORY AND OPERA"PIONS .............................
...................... ...................5
4.3
ASSESSMENT OF POTENTIAL POLLUTION SOURCES......................................................6
4.4
SPILL.. HISTORY.........................................................................................................................6
5.0
BEST MANAGEMENT PRACTICES.........................................................................................G
6.0
EROSION AND SEDIMENT CONTROLS................................................................................7
6.1
STABILIZATION MIWASURES....... ....................... .......... :........................................................
.7
6.2
STABILIZATION AFTER ADVERSE WEATHER..............................................................I....7
6.3
STRUCTURAL PRACTICES ......................................................................................I..............7
6.4
STRUCTURAL PRACTICES.....................................................................................................8
7.0
POLLUTION CONTROLS........................................................................................................8
7.1
NO WASTE MATERIAL.... ..... ...... ............... .............................. ....................... I.- .... 11 .......... 8
7.2
EXCAVATE MATERIALS......................................................................................................8
7.3
OFFSITE VEHICLE TRACKINGIDUST & PARTICLE CONTROL ........................................8
7.4
PETROLEUM PRODUCTS ................... .........................
.......................... -,.......... I .... 8
7.5
PROTECTION OF POTABLE WATER WELLS.......................................................................9
7.6
NON-STORMWATERDISCHARGES.......................................................................I..............9
7.6.1
NON -STORMWATER CERTIFICATION .............................................................................................9
8.0
PREVENTIVE MAINTENANCE & GOOD HOUSEKEEPING
..............................................9
9.0
MANAGEMENT PROCEDURES...................................................................................I............9
9.1
INSPECTIONS... ............................ ................... ......................................... - ........... ................ 9
9.1.1
COMPREHENSIVE SITE COMPLIANCE EVALUATION.......................................................................9
9.1.2
OTIIER INSPECTION REQUIREMENTS...........................................................................................10
9.2
EMPLOYEE TRAINING..........................................................................................................10
9.2.1
INITIAL TRAINING PROGRAM......................................................................................................
10
9.2.2
NEW EMPLOYEES........................................................................................................................1
I
9.2.3
ONGOING EDUCATION........................................................... ............
9.3
SPILL PREVENTION AND RESPONSE PROCEDURES.......................................................1
1
9.3.1
OPERATIONS......................................................... ................
9.3.2
DISCOVERY AND IDENTIFICATION...............................................................................................1
1
9.4
STORMWATER SAMPLING ................. I ........ ........ ............. ....... ................ I ... I.- .......... I .........
13
9.5
RLCORDKEEPING...................................................................................................................16

Blue Ridge Concrete Stormwater Management Plan WPC Project 9 WPC3407.00168
Weaverville, North Carolina Janumy 22, 2008
9.6 SWPPP AMENDMENTS..........................................................................................................17
10.0 GENERAL PERMITSISWPPP CROSS REFERENCE...........................................................17
Appendix I
Emergency Contacts
Appendix II
Spill Report Form
Appendix III
Compliance Evaluation Form
Appendix IV
Monthly Stormwater Inspection Fonn
Appendix V
Visual Observation Report
Appendix VI
Record of Training
Appendix VII
Certification of Evaluation of Non-Stormwater Discharges
Appendix VIII
Discharge OutfalI Monitoring Report
Appendix IX
General Permit NCG140000
Figure I
Site "Topographic Map
Figure 2
Facility Layout Map
Figure 3
Facility Drainage Map
Figure 4
Facility Detail Map
Page 2

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
RECORD OF DOCUMENT REVISIONS
Initial Document Date Prepared
Name Of Preparer:
Revision Number l
Date:
Signature of Authorized Representative
Revision Number 2
Date:
Signature of Authorized Representative:
Revision Number 3
Date:
Signature of Authorized Representative:
December 4, 2007
WPC, Inc.
10907 Downs Road
Pineville, NC 28134
January 22 2008
WPC Project # WPC3407.00168
January 22, 2008
Page I

Blue Ridge Concrete Stornmater Management Plan WPC Project 9 WPC3407,00168
Weaverville, North Carolina January 22, 2008
PROFESSIONAL ENGINEER'S CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted, to the best of my knowledge and belief,
is true, accurate and complete. I am aware that there are significant penalties for submitting
false information including the possibility of fine and imprisonment for knowing violations".
SIGNATURE OF REGISTERED PROFESSIONAL ENGINEER
William S. Anderson, III, P.E.
Date: P -22 `©cs
REGISTRATION NUMBER:
STATE: NORTH CAROLINA
Page 2

Blare Ridge Concrete Stormwaler Management Plan
Weaverville, North Carolina
1.0 INTRODUCTION
JfPC Project # WPC3407.00168
January 22, 7008
A Storm Water Pollution Prevention Plan (SWPPP) is a requirement of the State of North
Carolina Department of Environment and Natural Resources (NCDENR), National Pollutant
Discharge Elimination System (NPDES) General Permit No. NCG140000 for Ready Mix
facilities. A SWPPP for the Blue Ridge Concrete facility must be implemented as stated in
the permit conditions, and if requested by the NCDENR, it must be submitted for review. If
the plan is found to be deficient, NCDENR will require the facility to amend the plan and
submit a schedule to correct deficiencies within 30 days.
A SWPPP addresses ways to manage, operate, and react to minimize the likelihood of
causing storm water pollution. This SWPPP provides a flexible means to develop site -
specific measures for storm water pollution reduction and control.
The SWPPP is designed to achieve two main objectives:
1. Identify potential sources of pollution; and
2. Describe the methods by which the facility is to reduce the amount of pollutants
carried in the discharging stormwater to maintain compliance with the state permit
requirements.
A copy of the North Carolina Storm Water General Permit No. NCG 140000 for Ready Mix
facilities is provided in this plan. The on -site representative and appropriate personnel
assigned to the Blue Ridge Concrete facility should become familiar with the specific terms
and conditions of the permit.
2.0 FACILITY INFORMATION
Facility Title: Blue Ridge Concrete
50 Murphy Hill Road
Buncombe County
Weaverville, North Carolina 28787
Owner Name and Address: Blue Ridge Concrete
50 Murphy Hill Road
Asheville, North Carolina 28787
Owner's Representative: Johnny Maroney
District Manager: Mark "Turner
Page 3

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
On -Site Representative
Operations Manager:
Consulting Engineer:
3.0 SITE DESCRIPTION
Johnny Maroney
Mark Turner
WPC, Inc.
10907 Downs Road
Pineville, North Carolina 28134
WPC Project # WPC3407.00168
January 22, 2008
The Blue Ridge Concrete facility is located to the west of US Highways 19/23, off Murphy
Hill Road in Weaverville, Buncombe County, North Carolina. The site is bordered to the
north by undeveloped land, to the east by Murphy Hill Road beyond which is undeveloped
land, to the west by a stream beyond which is undeveloped land, and to the south by
undeveloped land.
3.1 SITE CONDITIONS
A facility map is included as Figure 2. The site consists of approximately 3.93 acres of
which 2.997 acres are to be developed as a concrete plant; the remaining 0.933 acres is
undisturbed. The concrete plant includes an office building, a storage building, a silo, an
aggregate storage area, and two conveyor belt systems. A twelve -space employee parking lot
is located near the south boundary of the concrete plant. An additional parking area (to the
north of the employee parking lot) is used for nine concrete trucks. The remaining areas are
gravel paved or landscaped.
An approximately 50-foot-diameter truck washout basin is located near the northeast corner
of the concrete plant. An approximately 200-foot-long by 30-foot wide stormwater retention
basin is located along the southern edge of the facility limit. The retention basin then drains
down the existing drainage ditch draining to the south.
3.2 EXISTING SITE DRAINAGE FEATURES
"fhe 1997 "Weaverville, NC" United State Geological Survey (USGS) Quadrangle
topographic maps indicates that the slope is south to west across the site with the elevation
ranging from 2,165 to 2,105 feet above mean sea level (see Figure l — Blue Midge Colicrete
Site 'Topographic Map). Surface water (via the onsite storm water retention area) discharges
Page 4

Blue Ridge Concrete Stornmater Management Plan WPC Project # WPC3407.00168
Weaverville, North Carolina January 22, 2008
to an existing drainage ditch. No distinct water bodies were observed on the property. As
shown in Figure 3, there are two drainage areas noted on the site.
Drainage Area 1 (DAI) drains the gravel and building pad areas. Surface flow is directed to
the stormwater retention area located along the southern boundary of the concrete plant. The
truck washout area is designed not to discharge stormwater or concrete truck washout water.
DA2 is located in the vegetated area along the northern boundary of the concrete plant. The
drainage in this area flows southward to the stormwater retention area located along the
southern boundary of the concrete plant.
4.0 SOURCE POLLUTANTS
4.1 SOURCE IDENTII+`ICATION
At the Blue Ridge Concrete facility, the activity with the greatest potential for stormwater
pollution includes the washing out of the concrete trucks,
4.2 MATERIAL INVENTORY AND OPERATIONS
Site operations involve the storage and handling of the following significant outdoor
materials:
Table 1: Inventory of Significant Outdoor Materials
Quantity
Material Stored
Volume r
Type
Location
(gallons)
Unknown
Fine Sand
Not Applicable
Fine Sand
—Aggregate
I Storage Area'
Unknown
Coarse Aggregate
Not Applicable
Coarsey
�� Aggregate
Aggregate
Storage Area
Unknown
Medium
Not Applicable
Medium
; Aggregate {
Aggregate
Aggregate
! Storage Area
Page 5

Glue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
WPC Project tl WPC3407.00168
January 2Z 2008
There is one outdoor feature at the Blue Ridge Concrete facility that has the potential for
carrying stormwater pollutants offsite, as follows:
G The truck washout area, located in the northeast corner of the concrete plant. 'rhe
area is not covered and is open to precipitation, although runoff is contained within
the area due to the depth of the washout area (10 feet), and runoff is prevented from
entering the truck washout area due to the surrounding berm around the perimeter of
the washout basin area.
4.3 ASSESSMENT OF POTENTIAL POLLUTION SOURCES
Potential pollution sources are unknown at this time due to the site not being in operation.
4.4 SPILL HISTORY
The operator is not aware of any significant quantities of toxic or hazardous materials that
have spilled, leaked, or otherwise accidentally been released in area exposed to precipitation
or drained to stormwater conveyance. A record of spills, leaks or similar incidents shall be
maintained with this SWPPP and updated as necessary in accordance with the terms of the
NCDENR NPDES General Permit No. NCG 140000 for Ready Mix facilities.
5.0 BEST MANAGEMENT PRACTICES
A list of Best Management Practices (BMPs) is provided to stabilize the site and maintain
stormwater runoff controls. Drawings for BMPs such as the truck washout basin and the
stormwater retention basin are included in Figure 4.
BMPs include;
I. Truck washout basin area should be bermcd to block stormwater surface flow from
entering the basin. Inspect truck washout basin sediment level and clean out when
necessary.
2. Inspect and maintain stormwater inlet to retention basin located at southeast corner of
parking area for sediment buildup.
3. Inspect and maintain sediment retention basin to ]seep sediment volume below the
calculated cleanout point.
Page 6

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
WPC Project # WPC3407.00168
January 22, 2008
4. Inspect vehicle and truck parking area for signs of any petroleum release and clean as
necessary. This will prevent petroleum from transporting to retention basin and on to
the creek located to the west of the facility.
5. Inspect and maintain outlet protection practices for damage, erosion, and scouring.
Storniwater outlets should contain Turf Reinforcement Mats covered with rip -rap or
lined with sufficient rip -rap along with rock check dams to reduce the effects of
sediment transport and soil erosion.
6. Keep all areas grassed to control sediment load of runoff. A uniform perennial
vegetative cover with a density of at least 80% should be established on all unused
areas.
7. Maintain a clean and sediment -free site entrance.
6.0 EROSION AND SEDIMENT CONTROLS
Crosion must be kept to a minimum and controls must be implemented or in place to comply
with permit conditions. An Erosion and Sedimentation Control flan was prepared for the
site by Cavanaugh & Associates, P.A. in December 2007 and submitted separately to
Buncombe County for review.
6.1 STABILIZATION MEASURES
Stabilization measures shall include temporary and permanent seeding and mulching.
Stabilization measures shall be initiated as soon as practicable in portions of the site that are
not used.
6.2 STABILIZATION AFTER ADVERSE WEATHER
When adverse weather occurs, the initiation of stabilization measures should begin as soon as
possible, but no later than the 141h day after ceasing activity in the affected area. Stabilization
measures, including temporary and permanent seeding and mulching. Stabilization areas
must be inspected and documented as required by Section 8 of this plan.
6.3 STRUCTURAL PRACTICES
Silt fences may be used to control runoff from the piles of materials to be used by the plant.
If; applicable, any and all existing catch basins affected by the activity will be protected by
the use of silt fence around the opening, the use of hay bales and other BMPs.
Page 7

Blue Ridge Concrete Slormwater Management Plan WPC Project # WPC3407.00168
Weaverville, North Carolina Janua)y 22, 2008
6.4 STRUCTURAL PRACTICES
All areas of sheet flow should be protected by silt fence and in accordance with BMPs. If
necessary, geotextile and/or rip rap should be utilized to minimize scour.
7.0 POLLUTION CONTROLS
Pollution controls are necessary to minimize impacts to stormwater runoff and satisfy permit
conditions.
7.1 NO WASTE MATERIAL
No waste materials shall be discharged into the water of the state. Waste materials must be
properly disposed. Waste materials that must be managed separately include paint,
degreasers, used'oil and filters, antifreeze, cleaning solutions, vehicle batteries, and hydraulic
fluid.
7.2 EXCAVATED MATERIALS
All excavated materials, if applicable, shall be removed to an appropriate oftisite disposal
facility in accordance with North Carolina Solid Waste Regulations.
7.3 OFFSITE VEHICLE TRACKING/DUST & PARTICLE CONTROL
Offsite vehicle tracking of dirt soils, sediments, or generation of dust offsite shall' be
minimized to the maximum extent practical. Exits consisting of gravel shall be located at
any point where traffic accesses public streets. Dust control shall be provided.
7.4 PETROLEUM PRODUCTS
All equipment will be observed daily for spills and leaks ofpetrolcum products.
All petroleum product spills shall be quickly cleaned up using absorbent materials • as
necessary and removed to an appropriate off site disposal area.
All petroleum products stored on site will be protected by secondary containment. This will
consist of a containment arca with storage capacity to contain the volume of the largest
container stored plus sufficient freeboard to contain a 25-year 24-hour storm event.
Page 8

Blue Ridge Concrete Stornrwater Management Plan
Weaverville, North Carolina
WPC Project # WPC3407.00168-
January 22, 2008
Any work which may involve the release of petroleum products or chemicals shall be
performed in an area subject to minimal run-on and as far from stormwater inlets as possible.
Maintenance personnel shall place drip pans under equipment to catch any leaks or spills,
when feasible. To the greatest extent possible, no work, which might result in spills, shall be
performed in open areas while it is raining or when rain is threatening. Equipment must be
attended when being fueled. Fuel tanks should not be overfilled.
Any spill of a reportable quantity must be immediately reported to the appropriate
government authority. At no time should petroleum products enter waters of the state.
7.5 PROTECTION OF POTABLE WATER WELLS
At this time there are no potable wells at the Blue Ridge Concrete facility.
7.6 NON-STORMWATER DISCHARGES
There are no non-stormwater discharges at the Blue Ridge facility.
7.6.1 Non-Stormwater Certification
Non-stormwater discharges are not permitted under the general permit.
8.0 PREVENTIVE MAINTENANCE & GOOD HOUSEKEEPING
Areas, which have vegetative cover, shall be reseeded and mulched when less than 80%
coverage exists.
Do not deposit sediment downstream from the embankment, adjacent to a stream or
tloodplain or within a designated wetland area.
9.0 MANAGEMENT PROCEDURES
9.1 INSPECTIONS
9.1.1 Comprehensive Site Compliance Evaluation
Page 9

Blue Ridge Concrete Stormwater Management Plan
Weaveivilie, North Carolina
WPC Project # WPC3407.001 b&
January 22, 2008
A comprehensive site evaluation shall be conducted annually by Blue Ridge Concrete
personnel trained in storm water management. The evaluation shall verify that all elements
of the SWPPP (i.e_ site map, potential pollutant sources, structural and non-structural controls
to reduce pollutants in industrial storm water discharges) are accurate. Based on the results
of the evaluation, the description of potential pollutant sources and pollution prevention
measures and controls shall be revised as appropriate within two weeks following such
inspections. Any necessary changes to the SWPPP will be made in a timely manner, but in
no case, more than 12 weeks after the inspection. Documentation of the evaluation will be
maintained using the form in Appendix C for the Annual Comprehensive Site Compliance
Evaluation.
9.1.2 Other Inspection Requirements
Routine inspections are conducted weekly and monthly at the facility, depending on the
nature of the inspection.
The equipment associated with the dispensing and storage of petroleum and other chernicals
is visually inspected during each transfer. Site personnel are instructed to immediately
report, to the Operations Manager, any noticeable releases or leaks from storage tanks,
piping, fuel pumps or nozzles. Releases or leaks from equipment are also to be reported
immediately.
Stormwater management system structures and the truck washout basin are formally
inspected monthly using the Storm Water Management Monthly Inspection Checklist
(Appendix D).
9.2 EMPLOYEE TCZAINING
9.2.1 Initial Training Program
All employees at the Blue Ridge Concrete facility shall receive initial training regarding
potential causes of pollution as well as practical methods for reducing pollutant contact with
storm water including spill response, good housekeeping and material management practices.
Documentation of the evaluation will be maintained using the form in Appendix F for the
"training Activity Documentation.
Page 10

Blue Ridge Concrete Stormwater Management Plan YYPC Project # WPC3407.D01G8
Weaverville, North Carolina January 2Z, 200S
9.2.2 New Employees
Each new employee shall receive training on the significant aspects of storm water
management. This SWPPP will be located in the office and will be available for review by
all new employees.
9.2.3 Ongoing Education
Annual training of facility employees is conducted to present updated information and to
maintain a level of employee awareness regarding storm water pollution prevention practices.
9.3 SPILL PREVENTION AND RESPONSE PROCEDURES
9.3.1 Operations
The following guidelines will be followed in the event of a spill or other discharge of oil/or
hazardous substances.
Any employee who discovers a discharge of oil and/or hazardous substances should
determine the source of the spill. If the source; of the spill is immediately obvious, the
employee should report the spill to the Operations Manager and/or to the appropriate
designee.
If a spill occurs, regardless of the volume, that is not fully contained and has the potential to
reach the water of the State of North Carolina, then the NCDENR shall be contacted along
with the Operations Manager.
The Operations Manager will determine the cause of the spill, take action to clean up the
spill, and implement measures to prevent a reoccurrence. Additional technical assistance is
available through company resources.
9.3.2 Discovery and Identification
Once a discharge has been discovered and reported to the Operations Manager, an effort
should be made to determine the type of discharge. The following information, if available,
should be recorded on the Spill Report Form found in Appendix B:
Page, 11

Blue Ridge Concrete Stormwater Management Plan
weaverville, North Carolina
WPC Project # WPC3407.00168
January 22,. 2008
a Time of discharge;
O Location and name of nearest waterway or water body;
o Rate and direction of material released (to the greatest extent possible);
o Status of the discharge or release;
o Meteorological conditions prevelant (i.e. rainfall, or pending rainfall which will
rapidly transport the discharged quantity); and
o Once the discharge has been identified, the District Manager will make notifications
to appropriate officials. The following information should be provided:
• The identity of the material;
• The time the discharge began;
• Where the discharge occurred;
• The direction of flow;
91 Cloud cover or the probability of rainfall;
13 How much material was originally present, including type and size of tank or
truck (container); and
13 The condition of the container.
Small quantity spills will be mixed with soil or other absorbent material. The contaminated
absorbent will then be removed and disposed of in accordance with applicable rules,
regulations and guidelines.
If a spill is too large to be cleaned -up using the procedures described above, the District
Manager will contact Local and State authorities for guidance regarding the proper removal
and management of the released product.
Any product which escapes or is spilled outside of secondary containment structures will be
immediately diked using absorbent booms, soil, straw bales or other material to restrict the
flow of product and prevent the discharge to the storm water management system. 'All
contaminated absorbents and soils will be cleaned -up and disposed of in accordance with
applicable rules, regulations, and guidelines set forth by the State of North Carolina.
The materials listed below should be kept on hand at the Blue Ridge Concrete facility for use
in controlling/containing small spills of petroleum or other chemicals. These materials
should be kept in a weather-proof container and be accessible in areas where outside products
are stored at the facility.
Page 12

Blue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
o Spill control booms — 5
o Spill control pads — 5
• Oil dry absorbent — 15 bags
o Flat Shovels - 4
9.4 STORMWATER SAMPLING
WPC Project # WPC3407.00168
January 22, 2068
According to General Permit NCG140000, the following are required at the Blue Ridge
Concrete facility once it is covered under this general permit.
C Inspect all stormwater outfalls twice a year (spring and fall) for things like color,
odor, etc. as shown in the following table.
Discharge L'1�7t'attel'.istics
Fred€1e11C.}'
Monitoring
I,peatintll
Color
Se111i-.1z1€lal
DO
Odor
Semi-.a1u111a1
DO
Clarltzr
Sernl-Aiuulal
DO
F1omilig Solids
Stn11-.Lull€1'11
DO
suspended 5011d5
Seiili-A1u111a1
DO
Foatn
Seiiii-A.1111€1A1
DO
oil Sl1een
Se.nli-:-Uiwal
DO
Other obviom indicators
Of S10111]lt 0iff p011ut1011
DO
Foo€noie.i:
l \tonitoriug Locatia:�: Qtt;li�ati;� mollitori:;� sllsl ne il�rfonilzd at eac�l
stonlla rter.' 1tar ya :tasiectiater discinige ombl; (DO) regordtei5 of
ret�resent. i e osittal4 saris.
Monitor stormwater discharges for pI-I and Total Suspended Solids (TSS) annually
�\ i bring a representative storm event (> 0.1" following at least 72 hrs of no rain).
Record rainfall amount, duration, and flow for sampled storm events.
Page 13

Nue Ridge Concrete Stormwater Management Plan
Weaverville, North Carolina
WPC Project 4 Wl'C3407.00168
January 22, 2008
Discharge
Characteristics
Units
Measurement
Frequency,
Sample
Type
Sample
Location'
H
statulafd
atulltally
Grab
SDO
Total SuslLended Solids
111g; l
annually
Gfab
SDO
Total RainfhW
inches
;ltlttttalls,
-
Event Ditrtttion'
]]unites
at1rttlally
_
-
Total How'
NIG
antlts.11y
Grab
SILO
Footnotes:
l V eisttreuleut Frenuenc,,: Once per year Ring a representative stonn event, A } Q.ar is defined c„ ill:
12 month portod be2iim111a on the ltlondi and da}' of i3suiniee of the C'ertilicale of cover1?e.
-' If the stormmmer rutloff i•; con7olled by a stommater detennon pond. a grab s3wp'.e of the discharge
iron] ibe pond shall be collected is felt][] the first 30 ltlirltlres of dlsc:l: rs=e. If t_:e detemion potld
L—'dlif==eS Only ill re sp411iZ to el Stork] ?t2Jlt zx,:eednlQ �-, c n wiir desq't ston 1, theta do attal tied]
t`1411io-ITi.tg 1'; NylllleG itJl l nlotittonin_ be perfumed.
Srniple Locati ltv Sampl;s =,It,:ll be. colleue:l nt eac_1 ; 3rw.,.Yxer discll-a_R- a LtLtfa:l '00'. tulle=,.
rel;resz'�:a.:i�e outfit]_ s:vtlt>:1;t9 iY.e1l erovt?tl,
e3e!] ;alYtpl2d r2(�rzyellt3tl:`� <[�iIllt @:t'llf ll2 i0i.li l}rzCllNia:t��11, i:G1"C'] dtl?'ttiC)11. fill l tQt3l ZO;l' [:lti:i
be 70Zji ilo,a Baal! 4z eitlJer_ (-. conthato sl_y_'bj calctd, ted b fed on t�,e nnotutt
of area dr, ininL, to the outfall; _he amotl»: of built--Lro u iimtpet :riot]. } area, and the t,t:tl linlot;.-n of
remal"11, •Jr(c) e51111ta ed by die inlm.iltrement of llcw at D tuinuie iatervnh dltrlllp The raillii_l eyent.
If discharges meet the following cut-off concentrations, then analytical data need be
obtained only for the first and last years of permit coverage -
Discharge Characterisfics
Cut-off Concentration
r
pii'
tt:},,lit] rant 6.0 - 9.0
Total Sui )ended Solids
100 111a'1
l 13H ulmo� Ise a'vrraVed du, to the nature of the logmi-lunic p.1l stole. The ]lent recen-.1,,H ,7tnple resale
shall foe [tied for cm -or? co:.certrvion ptlrpo;ei.
o If vehicle maintenance activities use >55 gal new motor oil/month, monitor annually
for Oil & Grease as shown in the; table below,
Page 14

Blue Ridge Concrete Storniwater Management Plan
Weaverville, North Carolina
WPC Project # WPC3 40 7; 00 168
January 22, 2608
Discharge
Characteristics
Units
l-Iensureinent
Fre uellcX1
Sample
Tz' ep
Sample
Location
3H
standard
ammall •
Grab
SDO
Total Suspended Solids
III I
annually
Grab
SDO
Oil and Grease
311%]
anlittally
Grab
SDO
Ne�i; Nioior Oil lisa e
gallotislltioutll
annually
Estimate
-
Toial Rainfall'
incites
annually
-
-
Ev'�nr DIITatxon'
111i1111tCs
annually
-
-
Totai ]"low',
i\..iG
atintially
Grab
SDO
footnotes.;
1 .F!;iliii]'�?l!t'I.tE ]'Ct'.f!ltCi1C[-: �i:iCt Dt'1"�i�itl' dtIri!1� 3 rcl:r@5�'Ili:ii!': c' St01711 @�ctlt. :�.'re�r ". i RtCfl:lc'd i1 itle
12. ni, nth tlerloct beffil_uine on i:!e 111011i11 and day o? i;suauce of the Certifluile of C'Overl-e.
If the sioninlater r=Off ;;,eilzolled b1•a ,tom.nxaarde ,!:;ie pond: a ffrib sinip'e of d)e di.cllarse
o'll the pond shaybe collected v"I'dtin the first 30 aiknnte, ofclisc::arg�. if t::� diet=n:ion pond
disdiar?ei oIll°; 111 response to a v(,r1 n eveill eStZeding aie:3';ecir &311atl stoyni, fuel] no ;in alylical
Lnonitol'1ti8 !i required aitd only citlalitan.ve monitorms be perf"raied.
3 Sanip!e Location- S.inaples dial] be collected at vc) swrinwater discharge outft_l (SDO) that
diwlulvstornnj Itrr rimofi ions ireti(i) where .•ellicle maimenance activities occur.
' �;ltrortnt of area li-aining to
rtal floc' sl all lye; (a) t71e„suted cntuill.tolr,ly, lb,1 al cu ;..11x3t�d bleed cii The
1he Ottti111, [rle 21!IOtltlt 0-1 llu!lt-1ip011 (l:iiDeri'iom) area, raid the total anioLult o= ra:; all, of (C) (nfiniated
by Ow VneastU'Cl en, of f ov: at 20 111in lte IllI@Il`3! i L.'itUhlg t11f C!pl,MiDa Ifni
dtlrltiail of ille rainfall e,e.Fi tt:easltred s:tal: result trot:] the sarltpled represen*w.i'�--e s:onn event.
If discharges meet the following cut-off concentrations, then analytical data need be
obtained only for the first and last years of permit coverage.
Discharge Chnracteristics
Clikiffcoikenfir iti6n
pH'
withill rallgr 6.0 - 9.0
Oil and Grease
30 ingtl
Total Silspencled Solids
100 mg-1
�auil!otes�
^ty! Ci"1:L3i 1)c d:''r1Qc'c dill t::e itd lire of Idle 10�anC11li1tC �71 ;dale. Thel110ii I.Ct':7i S7tI .Salt It t: resit]:
,ilia]( be med for cut•or coilcett:ratioit plot? >e
0 Monitor each type of wastewater discharge for pl-I, TSS, and Settleable Solids (SS) as
shown in the following table. (If wastewaters are combined, one sample Tay
represent multiple types if sufficiently mixed).
Page 15

Blue Ridge Concrete Stormwater Management Plait
Weaverville, North Carolina
Pik
WPC Project # WPC3407.00168
January 22, 2008
Discllarge.
N-leasuremeut
Dail•5autple
5atrlple.
Characteristics
Units
Frequency'
Maxiinutll
Type'
Location'
Unit
PH t
standard
:uulually
-
Grad
E
Total Suspended Solids
1ng,I
arlt1ual1v
30 mjZ1
Grab
E
Settleable Solids
1111:'1
11ulually
5 Illl;'l
Grab
E
EL,�ilt 1)1111, 11411
111111111es
1111111ally
-
Total F1oAv'
Qauolis
antlually
-
E
oomotes:
t Vei3u remeut Frequeaey: Once per year during , recycle System otierklov discharge evelit. I uo
discharge e:'eilt occurs during the nwzliior'iig yeilr, Erie pel'n:itte y .all generate a .signed cenificatiou
vatiliL, ghat 1,0 disc::llr2e occurred and tint no .im,.ole is required for t::0i immtormv vear. A }-tar is.
defilled as t'ne 12-nioiah period begiuniqg on ttie inrxi-.h and da of i.ssili ixe of t',,e Certificate of
t L-vemr-'e_ 1 .-he :e;:','cle in re:,poiise Eo a 10 1 ear - 2 lip lit tSTeCil1i31i10:i eS :'si.
i?6 Ill]IlleJr ilg li regallred.
2 Smir-le r:tthia -he ilrst -`rt :11:LLS:et of 6chime.
3 Sampte Locatiou: Effineut (E) = regcle system discharge ouIall.
1 he }H sh3l' not Ise le:r pia:: 5.fl,tr,l2cllyd 1w1ts t:��r al".,iter 111an 9.0 sEandnrcl l[u::;.
Eor each sampled :rcVC[e s,:stem ci_charee e tu- t:.e t_ al discharge dur'a im and rota] f_o". unlst be
monitored. To'a: do-x can be measured cciiiinucur•t or c al-ctllate .
o Submit a discharge monitoring report (DMR) within 30 days of receiving results. A
copy of the report form is included in Appendix H. Include qualitative monitoring;
results with the first submittal. If there were no discharges, the facility still must
fulfill the reporting requirement. Write "No Discharges" on the DMR.
RECORDKEEPING
A copy of this SWPPP will be retained for one year after coverage of the exiting General '
Pcrmit NCG 140000 expires. The following documentation will be maintained as part of this
S WPPP:
o All Comprehensive Site Compliance Evaluation summaries and all necessary, or
appropriate follow-up actions to an evaluation.
o Routine quarterly inspection records
o Records of personnel training
Page 16

Blue Ridge Concrete Stormwater Management Plan
Weavetville, North Carolina
O Spill Records
WPC Project 9 WPC3407.00168
Januaty 22, 2003
This SWPPP shall be retained on site at Blue Ridge Concrete main office and shall be made
available upon request by an authorized representative of NCDENR.
9.6 SWPPP AMENDMENTS
If notified by NCDIINR that this SWPPP does not meet one or more of the minimum
requirements of Part IV of NCC140000, then Blue Ridge Concrete will respond within 30
days with a revised SWPPP. Blue Ridge Concrete will make the changes to the plan as
necessary to conform to the minimum requirements of the Permit, and shall promptly certify
in writing that the required changes have been made.
This plan shall be amended whenever there is a change in design, construction, operation, or
maintenance, which has a significant effect on the potential for pollutants to discharge to the
waters of the United States. The SWPPP shall also be amended if the plan proves to be
ineffective in eliminating or significantly minimizing pollutants from sources identified as
potential pollutants in this plan, or in other wise achieving the general objectives of
controlling pollutants in the stormwater discharges associated with industrial activity.
10.0 GENERAL PERMITS/SWPPP CROSS REFERENCE
A general permit cross reference with this SWPPP is provided as Appendix 1.
Page 17

i
+ENGiltifkiERINC, ENV1ktpNMIrN7'AL
& CONSTRUCTION SERVICES
1: EMERGENCY CONTACTS

Emergency Telephone Numbers
7
Town of Weaverville Eire Department
911
[phone]
NIA
NCDENR Emergency Reporting
[phone]
NIA
Operations Manager - Mark Turner
[phone]
NIA
Town of Weaverville Police Department
911
[phone]
NIA
National Response Center
[phone]
NIA

ENGINEERING, ENVtROtvnIENTAL
& CONSTRUCTION SERVICES
lld SPILL REPORT FORM
k �fL7f -0n l4 S 6}
h Fl 31 4

Blue Ridge Concrete
Spill Reporting Fqrm
Date of Spill:.
Location of Spill:
Map:
Type of Material Spilled;
Quantity Spilled:
Repairs/Replacements Required:
Other Preventative Measures Required:
Agencies Contacted:
Comments:
(include map if appropriate)
Total Capacity of Unit:

ENGINEERINC, ENVIRONMENTAL
& CONSTRUCTION SERVICES
III. COMPLIANCE EVALUATION FORM

Blue Ridge Concrete
Annual Comprehensive Site Compliance Evaluation
General•
Inspection Team:
Areas Inspected for Potential Pollutants:
Date:
Adequate Measures to Reduce Potential Pollutant Loadings (yes/no for each inspected
area)

Spill Response Equipment:
(Condition of Material/Close to Potential Spill Areas/Adequate Supply)
❑ Oil Dry
❑ Absorbant Socks
o Other:
Recommendations:
Do inspection resultsindicate need for corrective measures? Yes No
Describe areas of concern and suggested improvements:
Area:
Area:
Area:
Area:
Form completed by/inspector's Signature:
Improvement:
Improvement:
Improvement:
Improvement:

ENGINEERING, ENVIRONMENTAL
& CONSTRUCTION SERVICES
IV: MONTHLY STORMWATER
INSPECTION FORM

Blue Ridge Concrete
Monthly Stormwater Inspection Form
(Month)
Date: Time: Inspected by:
Areas Inspected:
❑ Truck Washout Basin Area
❑ Aggregate Hopper Area
❑ Stormwater Inlet at southeast corner of parking lot
❑ Stormwater Retention Basin
❑ Stormwater Retention Basin Outlet on west side of property
General Housekeeping:
EXCELLENT GOOD FAIR NEEDS IMPROVEMENT
Preventative Maintenance:
EXCELLENT GOOD FAIR NEEDS IMPROVEMENT
Spill Prevention and Response:
EXCELLENT GOOD FAIR NEEDS IMPROVEMENT
Recordkee_ping:
EXCELLENT GOOD FAIR NEEDS IMPROVEMENT
Area(s) Needing Improvement:
General Comments:

ENGINEERING, ENVIRONMENTAL
& CONSTRUCTION
Vr
ERV ICES
VISUAL OBSERVATION REPORT'

Blue Ridge Concrete
Visual Observations Report
Quarterly Stormwater Examination
(Month)
Date: Time:
Examined by:
WEATHER CONDITIONS:
ADVERSE OK
IF ADVERSE, INDICATE WHY:
FLOODING HIGH WINDS
HURRICANE TORNADO
ELECTRICAL STORM
SAMPLE CONDITION (CIRCLE ALL THAT APPLY)
COLOR: DARK
NORMAL LIGHT
DESCRIBE:
ODOR: NONE PRESENT SLIGHT ODOR STRONG ODOR
DESCRIBE:
CLARITY: CLEAR SLIGHTLY CLOUDY VERY CLOUDY
DESCRIBE:
FLOATING SOLIDS: PRESENT
NOT PRESENT
DESCRIBE:
SETTLED SOLIDS: PRESENT
NOT PRESENT
DESCRIBE:
FOAM: PRESENT
NOT PRESENT
DESCRIBE:
OIL: PRESENT
NOT PRESENT
DESCRIBE:
SCUM: PRESENT
NOT PRESENT
DESCRIBE:

ENGINEERING, ENVIRONMENTAL
& CONSTRUCTION SERVICES
VI: RECORD oFTRAYNING

Blue Ridge Concrete
Record of SWPPP Training
Date:
Attendees:
Subjects and Issues:
Recommendations and Suggestions:

ENGINEERING, ENVIRONMENTAI.
li & CONSTRUCTION SERVICES
V II: CERTIFICATION OF EVALUATIONOF
NON-STORMW TER DISCHARGES

CERTIFICATION OF EVALUATION OF NON -STORM WATER
IIISCIURGES
This document serves as official certification (as a required component of the SWPPP)
that non-stormwater discharges have been evaluated.
Name of Facility: Blue Ridge Concrete
Address: 50 Murphy Hill Road
Weaverville, NC 28787
Upon inspection of the plant and review of site plans for illicit connections, the SWPPP
Team Leader is unaware of any unauthorized non-stormwater discharges from this site.
No tests, other than visual observation, were performed nor deemed necessary at this
time.
"I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gathered and evaluated the information
submitted. Based on my inquiry of the persons or persons who manage the system,
or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate and complete. I
am aware that there are significant penalties for submitting false information
including the possibility of fine and imprisonment for knowing violations."
Name:
Sign:_
Title:
Date:

f--NGINE2RING, ENVIRONMENTAL
& CONSTRUCTION SERVICES
REPORT
p

A&G-525
NC®ENR
DISCHARGE OUTFALL MONITORING REPORT
GENERAL PERMIT NCG140000
(All sample data shall be reported no later than 30 days after receipt of lab results)
Certificate; of. Coverage: m NCG 14 ❑ ❑ ❑ ❑
Facility:Naine..
County
Phone Number.
Sample Information
Periiiit Teri u"
Year,'"
Year. StaWEnd Dates.
: Place chcck"mark to indicate:
applicahlesampling period
Discharge:Tyne {check as,appr6priate}.
s,Stormwater
Wast.. t..
1
Au Ust I, 2004 to Rily 31, 2005
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
2
Au List 1, 2005 to Jail y 31, 2006
3
—August 1, 2006 to July 31, 2007
4
August 1, 2007 to July 31, 2008
5
August 1, 2008 to July 31, 2009
Part A: Stormwater Discharge Monitoring Data (For stormwater not combined with process wastewater)
Storm Event Characteristics
Date ..Total Event Preci' itatian inches :" Event'Duratio"n hours .:
Stormwater Discharge Monitoring
Oiitfall ` :
No: ; .
'Date Sample
Collected.
moldd/ e)
I'otal'F16W
(MG).-.:-.
Total Everit ..
Precipitation .
inches) `.:
Event'Duratton
hoilrs ..
pH'
.:(Std.., Units)''
:Total
Suspended'
Solids
vl
Does this facility perform Vehicle Maintenance Activities using on average more than 55 gallons of new motor
oil per month? ❑ Yes ❑ No If yes, complete information below.
Stormwater Discharge Monitoring from Vehicle Maintenance Areas
Outfat] ..
No.
Date S inple
Collected.
(ino/dd/yr)
Total Flow
(MG)
.'Total Event
Precipitation
iciclies
Event:.New
Duration-
(hoairs)
"'
Motor Oil -
1Jsage'
(galhno .::
pf
Std. Units
Total
`Suspended"
.Solids
rii I
Oi F aiid
Grease
❑i ..1)
SWU-241-080104 Page €oft

Part B: Process wastewater discharge monitoring data
Sample #
Effluent.S6ufe s for this'sam le "
,1
Vehicle I Equipment Cleaning
❑
Raw Material Stock -pile Wetting
❑
M iki ng Drum Clean -out
❑
Recycle System Overflow
❑
Parameter
Unit
pata
Collection Date
mo/ddlyr
Total Flow
MG
Event Duration
hours
pH
Std. units
TSS
tng/l
Settleable Solids
ml/1
Sample #
.. ' Eitliierit Sources ,for.this:sam le
Vehicle I E uipnient Cleaning
❑
Raw Material Stock -pile Wettin
❑
Mixing Drum Clean -out
❑
Recycle System Overflow
❑
Parameter
Unit
Data
Collection Date
nio/dd/yr
Total Flow
MG
Event Duration
hours
PH
Std. units
TSS
tng/I
Settleable Solids
MIA
Mail original and one copy to:
Atln: Central Files
Division of Water Quality
DENR
1617 Mail Service Center
Raleigh, NC 27699-1617
Sample #
'Effli,ient Sources 'foc;ihis sail le::
❑
Vehicle / E ui ment Cleanin
Raw Material Stock -pile Wetting
❑
Mixing Drum Clean -out
❑
Recycle System Overflow
❑
Paraieter
. Unit
Data
Collection Date
mo/dd/yr
Total Flow
MG
Event Duration
hours
pH
Std. units
TSS
mg/l
Settleable Solids
ml/l
Sample #
:...$fflaent`Soirca s-fot';tlZis sam le.:.
,i
❑
Vehicle I E ui ment Cleaning
Raw Material Stock -pile Wetting
❑
Mixing Drum Clean -out
❑
Recycle System Overflow
❑
Pararriete:
Unit :
` bata
Collection Date
mo/dd/yr
Total plow
MG
Event Duration
hours
pH
Std. units
TSS
mb/l
Settleable Solids
ml/I
"I certify, under penalty of law, that this document And all attachments were
prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. 1 am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing
violations."
(Print Name of Permittee or Designee)
(Signature of Permittee or Designee) (iDwc)
SWU-241-080104 Page 2 of 2

ENGINEERING, ENVIRONMENTAL
& CONSTRUCTION SERVICES
N : cGENLRA , REKNIT NCG140000

`I STATE OF NORTH CAROLINA
DIaPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
TO DISCHARGE STORMWATER / PROCESS WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission and the Federal Water Pollution Control Act, as amended, this permit
is hereby issued to all owners or operators, hereafter permittees, which are covered by this permit
as evidenced by receipt of a Certificate of Coverage by the Environmental Management
Commission to allow the discharge of stormwater and process wastewater to the surface waters
of North Carolina or separate storm sewer systems conveying stormwater to surface waters in
accordance with the terms and conditions set forth herein,
Coverage under this general permit is applicable to all owners or operators of stormwater point
source discharges and process wastewater discharges associated with activities classified as
establishments primarily engaged in Ready Mixed Concrete [Standard Industrial Classification
Code (SIC) 3273].
Also included in this General Permit are stormwater discharges from those areas at the faeilities
described above which are used for vehicle maintenance activities.
The following activities are specifically excluded from coverage under this General Permit:
* Disposal of process wastewater not specifically designated in this permit into stormwater
conveyances, storm sewer autfalls or into waters of the state.
Disposal of return concrete and dumping excess concrete directly into stormwater
conveyances, storm sewer outfalls or into waters of the state.
The General Permit shall become effective on August 1, 1999.
The General Permit shall expire at midnight on July 31, 2004.
Signed this day July 22, 1999.
Orin fined shined by Kerr T. Stevens
Kerr T. Stevens, Director
Division of Water Quality
By the Authority of the Environmental Management Commission

Permit No. NCG 140000
TABLE OF CONTENTS
PART I INTRODUCTION
Section A: General Permit Coverage
Section B: Permitted Activities
Section C: Permit Renewal
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED
DISCHARGES
Section A: Stormwater Pollution Prevention Plan
Section 13: Analytical Monitoring Requirements - Stormwater discharge
Section C: Analytical Monitoring Requirements - Process wastewater discharge
Section D: Qualitative Monitoring; 1icquirements
PART III STANDARD CONDITIONS
Section A: Compliance and Liability
1.
Compliance Schedule
2.
Duty to Comply
3.
Duty to Mitigate
4.
Civil and Criminal Liability
S.
Oil and Hazardous Substance Liability
G.
Property Rights
7.
Severability
8.
Duty to Provide Information
9.
Penalties for Tampering;
10.
Penalties for Falsification of Reports
Section 13: General Conditions
1. Continuation of the Expired General Permit
2. Transfers
3. When an Individual Permit May be Required
4. When an hndividual Permit May be Requested

Permit No. NCG 140000
5. Signatory Requirements
6. General Permit Modification, Revocation and Reissuance, or Termination
7. Certificate of Coverage Actions
Section C: Operation and Maintenance of Pollution Controls
L Proper Operation and Maintenance
2. Need to Halt or Reduce not a Defense
3. Bypassing of Stormwater Control Facilities
Section D: Monitoring and Records
I.
Representative Sampling
2.
Recording Results
3.
Flow Measurements
4.
Test Procedures
5.
Representative Outfall
b.
Records Retention
7.
Inspection and Entry
Section E: Reporting Requirements
1.
Discharge Monitoring Reports
2.
Submitting Reports
3.
Availability of Reports
4.
Non-Stormwater Discharges
5.
Planned Changes
6.
Anticipated Noncompliance
7.
Bypass
8,
Twenty-four Hour Reporting
9.
Other Noncompliance
10.
Other Information
PA Wl' IV LIMITATIONS REOPENER
PART V ADMINIS"fERING AND COMPLIANCE MONITORING FETE REQUIREMENTS
PAWL' VI DEFINITIONS
41

Permit No. NCG 140000
PART I INTRODUCTION
SECTION A: GENERAL PERMIT COVERAGE
All persons desiring to be covered by this General Permit must register with the Division of
Water Quality by the tiling of a Notice of Intent (NOI) and applicable fees. The NOI shall be
submitted and a certificate of coverage issued prior to any discharge of stormwater associated
with industrial activity that has a point source discharge to the surface waters of the state.
Any owner or operator not wishing to be covered or limited by this General Permit may make
application for an individual NPDES permit in accordance with NPDES procedures in 1 SA
NCAC 2H .0100, stating the reasons supporting the request. Any application for an individual
permit should be made at least 180 days prior to commencement of discharge.
This General Permit does not cover activities or discharges covered by an individual NPDES
permit until the individual permit has expired or has been revoked. Any person conducting an
activity covered by au individual pen -nit but which could be covered by this General Permit may
request that the individual pennit be revoked and coverage under this General Penuit be
provided.
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge stormwater and/or process wastewater associated with
industrial activity as defined in this permit. Such discharges shall be controlled, limited and
monitored as specified in this pen -nit.
SECTION B: PERMITTED ACTIVITIES
Until this permit expires or is modified or revoked, the permittee is authorized to discharge
stormwater and process wastewater to the surface waters of North Carolina or separate storm
sewer system which has been adequately treated and managed in accordance with the terms and
conditions of this General Permit, All discharges shall be in accordance with the conditions of
this pennit.
Any other point source discharge to surface waters of the state is prohibited unless it is an
allowable non-stormwater discharge or is covered by another permit, authorization or approval_
This permit does not relieve the permittee from responsibility for compliance with any other
applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
SECTION C: PERMIT RENEWAL,
Dischargers covered by general permits need not submit new Notices of Intent or renewal
requests unless so directed by the Division. If the Division chooses not to renew a general
permit, all facilities covered under that general permit shall be notified to submit applications for
individual permits or notified to take other appropriate actions at the discretion of the Director.
Part I Page 1 of 1

Permit No. NCG 140000
PART II MONITORING, CONTROLS, AND LIMITATIONS FOR
PERMITTED DISCHARGES
SECTION A: STORMWATER POLLUTION PREVENTION PLAN
The Permittee shall develop a Stormwatcr Pollution Prevention Plan, herein after referred to as
the Plan. This Plan shall be considered public information in accordance with Part III, Standard
Conditions, Section E, Paragraph 3 of this general permit. The Plan shall include, at a minimum,
the following items:
Site Plan. The site plan shall provide a description of the physical facility and the
potential pollutant sources which may be expected to contribute to contamination of
stormwater discharges. The site plan shall contain the following:
(a) A general location map (USGS quadrangle map or appropriately drafted
equivalent map), showing the facility's location in relation to transportation
routes and surface waters, the name of the receiving water(s) to which the
stonmvater outfall(s) discharges, or if the discharge is to a municipal separate
storm sewer system, the name of the municipality and the ultimate receiving
waters; and accurate latitude and longitude of the point(s) of discharge.
(b) A narrative description of storage practices, loading and unloading activities,
outdoor process areas, dust or particulate generating or control processes, and
waste disposal practices.
(c) A site map drawn to scale with the distance legend indicating location of
industrial activities (including storage of materials, disposal areas, process areas
and loading and unloading areas), drainage structures, drainage areas for each
outfall and activities occurring in the drainage area, building locations, existing
BMPs and impervious surfaces, and the percentage of each drainage area that is
impervious. For each outfall, a narrative description of the potential pollutants
which could be expected to be present in the stormwater discharge.
(d) A list of significant spills or leaks of pollutants that have occurred at the facility
during the 3 previous years and any corrective actions taken to mitigate spill
impacts.
(e) Certification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges. The certification statement will be signed in
accordance with the requirements found in Part I11, Standard Conditions, Section
B, Paragraph 5.
2. Stonnwater Management Plan. The stormwater management plan shall contain a
narrative description of the materials management practices employed which control or
minimize the exposure of significant materials to stonnwater, including structural and
nonstructural measures. The stormwater management plan, at a minimum, shall
incorporate the following:
Part It Page 1 of 11

Permit No. NCG140000
(a) Feasibility Study. A review of the technical and econornic feasibility of changing
the methods of operations and/or storage practices to eliminate or reduce exposure
of materials and processes to stonnwater. Wherever practical, the pennittee shall
prevent exposure of all storage areas, material handling operations, and
manufacturing or fueling operations. In areas where elimination of exposure is
not practical, the stormwater management plan shall document the feasibility of
diverting the stormwater runoff away from areas of potential contamination.
(b) Secondary Containment Schedule. A schedule to provide secondary containment
for bulk storage of liquid materials, storage of Section 313 of Title III of the
Superfund Amendments and Reauthorization Act (SARA) water priority
chemicals, or storage of hazardous substances to prevent leaks and spills from
contaminating stormwater runoff. If the secondary containment devices are
connected directly to stormwater conveyance systems, the connection shall be
controlled by manually activated valves or other similar devices [which shall be
secured with a locking mechanism] and any stormwater that accumulates ill the
containment area shall be at a minimum visually observed for color, foam, outfall
staining, visible sheens and dry weather flow, prior to release of the accrEmufated
stonnwater. Accumulated stonnwater shall be released if found to be
uncontaminated by the material stored within the containment area. Records
documenting the individual making the observation, the description of the
accumulated stormwater and the date and time of the release shall be kept for a
period of five years.
(c) BMP Summary. A narrative description shall be provided of Best Management
Practices (13MPs) to be considered such as, but not limited to, oil and grease
separation, debris control, vegetative filter strips, infiltration and stormwater
detention or retention, where necessary. The need for structural BMPs shall be
based on the assessment ofpotential of sources to contribute significant quantities
of pollutants to stormwater discharges and data collected through monitoring of
stormwater discharges.
Spill Prevention and Response Plan. The Spill Prevention and Response Plan (SI'R.P)
shall incorporate an assessment of potential pollutant sources based on a materials
inventory of the facility. Facility personnel (or team) responsible for implementing the
SPR.P shall be identified. A responsible person shall be on -site at all times during facility
operations that have the potential to contaminate stormwater runoff through spills or
exposure of materials associated with the facility operations. The SPRP must be site
stonnwater specific. Therefore, a SPCC plan may be a component of the SPRP, but may
not be sufficient to completely address the stormwater aspects of the SPRP. The common
elements of the SPCC with the SPRI' may be incorporated by reference into the SPR.P.
4. Preventative Maintenance and Good Housekeeping Program. A preventative
maintenance program shall be developed. The program shall document schedules of
inspections and maintenance activities of stonnwater control systems, plant equipment
and systems. Inspection of material handling areas and regular cleaning schedules of
these areas shall be incorporated into the program.
Part 11 Page 2 of 11

Permit No. NCG 140000
5. Employee Training. Training schedules shall be developed and training provided at a
minimum on an annual basis on proper spill response and cleanup procedures and
preventative maintenance activities for all personnel involved in any of the facility's
operations that have the potential to contaminate stormwater runoff. Facility personnel
(or team) responsible for implementing the training shall be identified.
Responsible Party. The Stormwater Pollution Prevention Plan shall identify a specific
position(s) responsible for the overall coordination, development, implementation, and
revision to the Plan. Responsibilities for all components of the Plan shall be documented
and position assignments provided.
7. Plan Amendment, 'Elie perinittee shall amend the Plan whenever there is a change in
design, construction, operation, or maintenance, which has a significant effect on the
potential for the discharge of pollutants to surface waters. The Stormwater Pollution
Prevention Plan shall be reviewed and updated on an annual basis.
The Director may notify the perinittee when the .Plan does not nhcet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall
submit a time schedule to the Director for modifying the Plan to meet minimum
requirements. The pertnittee shall provide certification in writing; (in accordance with
Part 1I1, Standard Conditions, Section B, Paragraph S) to the Director that the changes
have been made,
Facility inspection Program. Facilities are required to inspect all stormwater systems on
at least a semiannual schedule, once in the fall (September -November) and once during
the spring (April - June). The inspection and any subsequent maintenance activities
performed shall be documented, recording date and time of inspection, individual(s)
making the inspection and a narrative description of the facility's stormwater control
systems, plant equipment and systems. Records of these Inspections shall be incorporated
into the Stormwater Pollution Prevention Plan,
Stormwater discharge characteristic monitoring as required in Part ll of this permit shall
be performed in addition to facility inspections.
Implementation. The perinittee shall document all monitoring, measurements,
inspections and maintenance activities and training provided to employees, including the
log of the sampling data and of activities taken to implement BMPs associated with the
industrial activities, including vehicle maintenance activities. Such documentation shall
he kept on -site Fora period of five years and made available to the Director or his
authorized representative immediately upon request.
Part ll Page 3 of I l

Permit No. NCG 140000
SECTION B: ANALYTICAL MONITORING REQUIREMENTS - STOWMWATER
DISCHARGE
Stormwater associated with industrial activity that is not combined with process
wastewater
During the period beginning on the effective date of the permit and lasting until
expiration, the Permittee is authorized to discharge stormwater associated with industrial
activity that is not combined with process wastewater subject to the provisions of this
permit. Analytical monitoring of stormwater discharges shall be performed as specified
below in Table 1.
For each parameter, the arithmetic mean of all analytical sampling results collected
during the term of the permit shall be calculated for each individual outfall. The
computed arithmetic mean is then compared to the cut-off concentrations listed below in
Table 2. if the arithmetic mean is less than the specified cut-off concentration for a given
parameter, then the facility is not required to continue annual analytical monitoring for
that parameter (at that outfall) during the remaining term of the permit unless a significant
change in facility operations or configuration occurs. If a cut-off concentration results in
discontinued analytical monitoring at an individual discharge outfall, the permittee is
required to maintain facility operations that ensure the continuation of stormwater runoff
quality.
The pennittee must perform analytical sampling of stormwater discharges during the first
and last year of the pennitcveragg regardless of cut-off concentration conditions.
Analytical results from sampling during the final year of the permit coverage must be
submitted with the permit renewal application. All analytical monitoring shall be
performed during a representative storm event.
Table I. Analytical Monitoring Requirements
Discharge
Units
Measurement
Sample
Sample.
Characteristics
Frequency'
Type
Location'
H
standard
annually
Crab
SDO
Total Suspended Solids
rn T 1
annually
Grab
SDO
Total Rainfal14
inches
annually
-
-
Event Duration
minutes
annually
-
Total Flow 4
MG
annually
Grab
SDO
Footnotes:
1 Measurement Frequency_ Once per year during a representative storm event. A year is defined as the
12 month period beginning on the month and day of issuance of the Certificate of Coverage.
2 If (lie stormwater rrmoff is controlled by a stormwater detention bond, a grab sample of the discharge
from the pond shall be collected within the first•30 minutes of discharge. If the detention pond
Partll Page 4 of t l

Permit No. NCG 140000
discharges only in response to a storm event exceeding a ten year design storm, then no analytical
monitoring is required and only qualitative monitoring shall be performed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless
representative outfall status has been granted.
4 For each sampled representative storm event the total precipitation, storm duration, and total flow must
be monitored. Total flow shall be either; (a) pleasured continuously, (b) calculated based on the amount
of area draining to the outfall, the amount of built -upon (impervious) area, and the total amount of
rainfall, or (c) estimated by the measurement of flow at 20 minute intervals during the rainfall event.
Table 2. Cut-off Concentrations for Analytical Monitoring Requirements
Discharge Characteristics ^
Cut-off Concentration'
H
within range 6.0 - 9.0
Total Suspended Solids
100 trt r 1
Footnotes:
I pH cannot be averaged due to the nature of the logarithmic pl l scale. The most recent PH sample result
shall be used for cut-off concentration purposes.
2. Stortnwater associated with industrial activity from on -site vehicle maintenance areas that
is not combined with process wastewater
Facilities which have any vehicle maintenance activity occurring on -site which uses more
than 55 gallons of new inotor oil per month when averaged over the calendar year shall
perform analytical monitoring as specified below in Table 3. This monitoring shall be
performed at all outfalls which discharge stormwater runoff from the vehicle maintenance
areas.
For each parameter, the arithmetic-incan of all analytical sampling results collected
during the coverage of the permit shall be calculated for each individual outfall. The
computed arithmetic mean is then compared to the cut-off concentrations listed below in
Table 4. If the arithmetic mean is less than the specified cut-off concentration for a given
parameter, then the facility is not required to continue annual analytical monitoring for
that parameter (at that outfall) during the remaining coverage of the permit unless a
significant change in facility operations or configuration occurs. If a cut-off
concentration results in discontinued analytical monitoring at an individual discharge
otttfall, the perntittee is required to maintain facility operations that ensure the
continuation of stormwater runoff quality.
The rermittee must nerform analvtical sampling during the first and last vear of the
permit coverage regardless of cut-off concentration conditions. Analytical results froth
sampling during the final year -of the permit coverage must be submitted with the permit
renewal application. All analytical monitoring shall be performed during a representative
storm event.
Part 11 Page 5 of 11

Permit No. NCG140000
f
Table 3. Analytical Monitoring Requirements for On -Site Vehicle Maintenance
Discharge
g
Units
Measurement ,.,, `t
Measuremelt
.Sample-
Sample,
:Characteristics
frequency.
T eZ
Location�c.
H -
standard
annually
Grab
SDO
Total Suspended Solids
m ]
annually
Grab
SDO
Oil and Grease
mg/1
annually
Grab
SDO
New Motor Oil Usage
allons/month
annually
lstiniate
-
Total Rainfal14
inches
annually-
Event Duration
minutes
annually
-
Total Flow
MG
annually
Grab
SDO
Footnotes:
l Measurement Frequency: Onee per year during a representative storm event. A year is defined as the
12 month period beginning on the month and day of issuance of the Certificate of Coverage.
2 if the stonnwater runoff is controlled by a stormwater detention pond, a grab sample of the discharge
from the pond shall be collected within the first 30 minutes of discharge. If the detention pond
discharges only in response to a storm event exceeding; a ten year design storm, then no analytical
monitoring is required and only qualitative monitoring shall be performed.
3 Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) that
discharges stonnwater runoff from arca(s) where vehicle maintenance activities occur,
4 Total flow shall be; (a) measured continuously, (b) calculated based on the amount of area draining to
the outfall, the amount of built -upon (impervious) area, and the total amount of rainfall, or (c) cstimaled
by the measurement of flow at 20 minute intervals during the rainfall event. Total precipitation and
duration of the rainfall event measured shall result from the sampled representative storm event.
Table 4. Cut-off Concentrations for On -Site Vehicle Maintenance Activities
•Discharge Characteristics.
Ctit--off.Conceniration
pl-l'
within range 6,0 - 9.0
Oil and Grease
30 tng/1
Total Suspended Solids
100 mg/1
Footnotes:
1 pH cannot be averaged due to the nature of the logarithmic pl-I scale. The most recent pill sample result
shall be used for cut-off concentration purposes_
Part 11 Page 6 of 11

Permit No. NCG 140000
SECTION C: ANALYTICAL MONITORING REQUIREMENTS - PROCESS WASTEWATER'
This general pen -nit authorizes the discharge of process wastewater associated with four distinct
activities. 1) Vehicle and equipment cleaning - external surfaces; 2) Overflow from recycle
systems that receive stormwater runoff; 3) Wetting of raw material stockpiles; 4) Mixing drum
cleaning. Discharge of process wastewater generated by any other activity is not authorized
under this pen -nit. In the event that authorized process wastewaters commingle prior to
discharge, sampling the combined discharge will meet the conditions of this permit for those
separate activities, with respect to the annual sample. In the case of commingled process
wastewater, the most stringent of the applicable limits will apply.
Note: For facilities which route stormwater and all process wastewater to a recycle system,
no analytical monitoring of process wastewater discharges is required if that recycle
system discharges only as a result of a 10 year - 24 hour precipitation event.
Effective date of process wastewater discharge limits
The discharge limits promulgated in section C.2 through C.5 will be effective as of August
1, 2001, 24 months from the effective date of this permit. All other requirements of
sections C.2 through C.5 will be in effect as of the effective date of this: permit.
2. Process Wastewater Associated with Vehicie_and_Equipinent C_1_eanin
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge process wastewater associated with vehicle and equipment
cleaning subject to the provisions of this permit, For the purposes of this permit, vehicle and
equipment cleaning is limited to the rinsing of the external surfaces of vehicles and equipment.
If detergents are used, they must be biodegradable and the pfl adjusted to 6 to 9 standard units.
Analytical monitoring of process wastewater associated with vehicle and equipment cleaning
discharges shall be performed as specified below in `fable 5. All analytical monitoring shall be
performed during a process wastewater discharge event associated with vehicle and equipment
cleaning.
'fable 5. Analytical Monitoring; Requirements
Discharge
Measurement
Daily
Sample
Sample
Characteristics
Units
Frequency
MLitnit m
Type'
Location'
H4
standard
annually
-
Grab
E
Total Suspended Solids
mg/1
annually
30 m I
Grab
E
Settleable Solids
1111/1
annually
5 ml/I
Grab
E
Event Durations
minutes
annually-
-
-
Total blows
gallons
annually
-
-
E
Part 11 Page 7 of 11

Permit No. NCG 140000
Footnotes:
l Measurement Frequency: Once per year during a discharge event. A year is defined as the 12 month
period beginning on the month and day of issuance of the Certificate of Coverage.
2 if the discharge is controlled lay a detention pond, a grab sample of the discharge from the pond shall be
collected within the first 30 minutes of discharge.
3 Sample Location: Effluent (E) = vehicle and equipment cleaning wastewater discharge outfall.
4 The pli shall not be less than 6.0 standard units nor greater than 9.0 standard units.
5 For each sampled discharge event the total discharge duration and total flow must be monitored. Total
flow can be measured continuously or calculated.
3. Process Wastewater Associated with Recycle Systems
During the period beginning on the effective date of the permit and lastiltg until expiration, the
Permittee is authorized to discharge process wastewater associated with the overflow oV recycle
systems subject to the provisions of this permit. Overflow discharge refers to a discharge
associated with precipitation events in excess of the design storm, which produces influent that
exceeds the design capacity of the system.
Note: By design, a recycle system is closed loop and should not discharge on a
routine or continuous basis. As such, the routine or continuous discharge of
process wastewater from recycle systems is not authorized under this permit.
Analytical monitoring of process wastewater associated with the overflow of recycle system
discharges shall be performed as specified below in Table 6. All analytical monitoring shrill be
performed during a process wastewater discharge event associated with the overflow of
recycling system.
Table 6. Analytical Monitoring Requirements
Discharge
Measurement
Daily .
Sample
Sample
Characteristics
Units
Frequency`
Maxiimum
Type
Location'
Limit
1-14
standard
annually
-
Grab
E
Total Suspended Solids
m r 1
annually
30 m l
Grab
E
Settleable Solids
I11111
annually
5 tnl/l
Grab
E
Event Durations
minutes
annually_
-
Total Flows
allons
annually
-
-
E
Footnotes:
I Measurement Frequency: Once per year during a recycle system overflow discharge event. if no
discharge event occurs during the monitoring year, the permitte shall generate a signed certification
stating that no discharge occurred and that no sample is required for that monitoring year, A year is
defined as the 12-month period beginning on the month and day of issuance of the Certificate of
Part 11 Page 8 of i l

Permit No. NCO 140000
Coverage_ If the recycle system only discharges in response to a 10 year - 24 hour precipitation event,
no monitoring is required.
2 Sample within the first 30 minutes of discharge.
3 Sample Location: Effluent (E) = recycle system discharge outfall.
4 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
S For each sampled recycle system discharge event the total discharge duration and total flow must be
monitored. Total flow can be measured continuously or calculated.
4. Process Wastewater Associated with Raw Material Stockpiles
During the period beginning on the effective date of the permit and lasting until
expiration, the Permit(ee is authorized to discharge process wastewater associated with
wetting of raw materials stockpiles subject to the provisions of this permit.
Analytical monitoring of process wastewater associated with wetting of raw material
stockpile discharges shall be performed as specified below in Table 7. All analytical
monitoring .shall be perfr)rined during a process wastewater discharge event associated
with wetting of raw material stockpiles.
Table 7. Analytical Monitoring Requirements
Discharge
Measurement
Daily
Sample
Sample
Characteristics
Units
Frequency
Magnum
.
Location`
LimitType
pH
standard
annually
Grab
E
Total Suspended Solids
m I
annually
30 m l
Grab
E
Settleable Solids
mlll
annually
5 tnlll
Grab
17
Event Duration4
minutes
arutuall
-
-
-
Total Flow
gallons
annually
-
-
Footnotes:
1 Measurement Frequency: Once per year during a discharge event. A year is defined as the 12 month
period beginning on the month and day of issuance of the Certificate of Coverage.
2 Sample Location: Effluent (E) = raw material stockpile discharge outfall.
3 The pl-1 shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 For each sampled discharge event.the total discharge duration and total flow must be monitored. Total
flow can be measured continuously or calettlated. For discharges in excess of 24 ]tours, report total flow
in 24-hour period and event duration in days.
.Part 11 Page 9 of i t

Permit No. NCG140000
5. Process Wastewater Associated with Mixing Drum cleanout
During the period beginning on the effective date of the pen -nit and lasting until
expiration, the Permittee is authorized to discharge process wastewater associated mixing
drum cleanout subject to the provisions of this pen -nit.
Analytical monitoring of process wastewater associated with mixing drum cleanout
discharges shall be performed as specified below in Table 8. All analytical monitoring
shall be performed during a process wastewater discharge event associated with mixing
drum cleanout.
'Kahle 8. Analytical Monitoring Requirements
Daily
Discharge
Measurement
Sample
Sample
Characteristics
Onits
Frequency
Maximum
xim m
Type
Locationz
j[['
standard
annually
-
Grab
I;
"Total Suspended Solids
nt ? 1
annual)
30 m I
Grab
I E
Settleable Solids
1111/1
annual)
5 tnl/l
Grab
E
Event Durations
minutes
annually
-
Total Flows
gallons
annually
E
Footnotes:
I Measurement Frequency: Once per year daring a discharge event. A year is defined as the 12 month
period bcginning on the month and clay of issuance of the Certificate of Coverage.
2 Sample Location: Effluent (E) = Mixing drum cleanout area discharge oulfall.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 For each sampled discharge cwnt the total discharge duration and total flow must be monitored. Total
flow can be measured continuously or calculated.
Pail 11 Page 1.0 of 11

Permit No. NCG 140000
SECTION F: QUALITATIVE MONITORING REQUIREMENTS
Qualitative monitoring requires a visual inspection of each stormwater outfall and/or combined
stormwater / process wastewater outfall regardless of representative outfall status and shall be performed
as specified below in Table 9. Qualitative monitoring is for the purpose of evaluating the effectiveness
of the Stormwater Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution.
No analytical tests are required. Qualitative monitoring of stormwater and combined stormwater 1
process wastewater outfalls does not need to be performed during a representative storm event.
The first qualitative monitoring event during the coverage of the pennit must coincide with the initial
analytical monitoringeven k (regardless of the season). All other qualitative monitoring will be
performed twice per year, once in the spring (April - June) and once in the fall (September - November)
Table 9. Qualitative Monitoring Requirements
Discharge Characteristics.
" Frequency
MottLocaationon'
Color
Semi -Annual
DO
Odor
Semi -Annual
DO
Clarity
Semi -Annual
DO
Floating Solids
Semi -Annual
DO
Suspended Solids
Semi -Annual
DO
Foam
Semi -Annual
DO
Oil Sheen
Semi -Annual
DO
Other obvious indicators
of stormwater pollution
Setni-Annual
_
DO
Footnotes:
Monitoring Location: Qualitative monitoring shall be performed at each
stonnwater/process wastewater discharge outfall (DO) regardless of
representative outfall statics.
Part 11 Page I 1 of 1

Pennit No. NCC 140000
PART III STANDARD CONDITIONS FOR NPDES GENERAL PERMITS
SECTION A: COMPLIANCE AND LIABILITY'
Compliance Schedule
The perinittee shall comply with Limitations and Controls specified for stormwater and
process wastewater discharges in accordance with the following schedule:
Existing facilities: The Stormwater Pollution Prevention Plan shall be developed and
implemented within 12 months of the effective date of the initial certificate of coverage
issued pursuant to this general pennit and updated thereafter on an annual basis.
Secondary containment, as specified in Part II, Section A, Paragraph 2(b) of this permit,
shall be accomplished within 12 months of the effective date of the initial certificate of
coverage.
Proposed Facilities: The Stormwater Pollution Prevention Plan shall be developed and
implemented prior to the beginning of discharges from the operation of the industrial
activity and be updated thereafter on an annual basis. Secondary containment, as
specified in Part 11, Section A, Paragraph 2(b) of this permit shall be accomplished prior
to the beginning of discharges from the operation of the industrial activity.
2. Duty to Comply
The permittee must comply with all conditions of this general permit. Any permit
noncompliance constitutes a violation of the Clean Water Act and is grounds for
enforcement action; for certificate of coverage termination, revocation and reissuance, or
inodification; or denial of a certificate of coverage upon renewal application.
a. The periiiittee shall comply with standards or prohibitions established under
section 307(a) of the Clean Water Act for toxic pollutants within the time
provided in the regulations that establish these standards or prohibitions, even if
the permit has not yet been modified to incorporate the requirement.
b. The Clean Water Act provides that any person who violates it permit condition is
subject to a civil penalty not to exceed $25,000 per day for each violation. Any
person who negligently violates any permit condition is subject to criminal
penalties of $2,500 to $25,000 per day of violation, or imprisonment for not more
than I year, or both. Any person who knowingly violates peanut conditions is
subject to criminal penalties of $5,000 to $50,000 per day of violation, or
imprisonment for not more than 3 years, or both. Also, any person who violates a
permit condition may be assessed an administrative penalty not to exceed $10,000
per violation with the maximum amount not to exceed $125,000. [Ref. Section
309 of the federal Act 33 USC 1319 and 40 CFR 122.41(a).]
C. Under state law, a daily civil penalty of not more than ten thousand dollars
($10,000) per violation may be assessed against any person who violates or fails
Part III Page 1 of 12 rages

Pen -nit No. [ECG 140000
to act in accordance with the terms, conditions, or requirements of a permit. [Ref:
North Carolina General Statutes 143-215.6A]
d. Any person may be assessed an administrative penalty by the Director for
violating section 301, 302, 306, 307, 308, 318, or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under
section 402 of the Act. Administrative penalties for Class I violations are not to
exceed $10,000 per violation, with the maximum amount of any Class I penalty
assessed not to exceed $25,000. Penalties for Class 11 violations are not to exceed
$10,000 per day for each day during which the violation continues, with the
maximum amount of any Class 11 penalty not to exceed $125,000.
Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge in
violation of this general permit which has a reasonable likelihood of adversely affecting
human health or the environment.
4. Civil and Criminal Liability
Except as provided in Section C of this permit regarding bypassing ofstormwater control
facilities, nothing in this general permit shall be construed to relieve the permitter from
any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-
215.3, 143-215.6A, 143-215.6I3, 143-215.6C or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the permittee is responsible for consequential damages, such as fish
kills, even though the responsibility for effective compliance may be temporarily
suspended.
5. Oil and Hazardous Substance Liability
Nothing in this general permit shall be construed to preclude the institution of any legal
action or relieve the permittee from any responsibilities, liabilities, or penalties to which
the permittee is or may be subject to under NCGS 143-215.75 et seq. or Section 311 of the
Federal Act, 33 USC 1321.
6. Property Rialits
The issuance of this general permit does not convey any property rights in either real or
personal property, or any exclusive privileges, nor does it authorize any injury to private
property or any invasion of personal rights, nor any infringement ol-l~'ederal, State or local
laws or regulations.
Severabilit}r
The provisions of this general permit are severable, and if any provision of this general
permit, or the application of any provision of this general permit to any circumstances, is
held invalid, the application of such provision to other circumstances, and the remainder
of this general permit, shall not be affected thereby.
Part III Page 2 of 12 Pages

Permit No. NCG 140000
8. Duty to Provide Information
The permittee shall furnish to the Director, within a reasonable time, any information
which the Director may request to determine whether cause exists for modifying,
revoking and reissuing, or terminating the certificate of coverage issued pursuant to this
general permit or to determine compliance with this general permit. The permittee shall
also furnish to the Director upon request, copies of records required to be kept by this
general perinit.
9. Penalties for Tampering
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly
renders inaccurate, any monitoring device or method required to be maintained under this
general permit shall, upon conviction, be punished by a fine of not more than $10,000 per
violation, or by imprisonment for not more than two years per violation, or by both. if a
conviction of a person is for a violation committed after a first conviction of such person
under this paragraph, punishment is a fine of not more that $20,000 per day of violation,
or by imprisonment of not more than 4 years, or both.
10. Penalties for Falsification of Reports
The Clean Water Act provides that any person who knowingly makes any false statement,
representation, or certification in any record or other document submitted or required to
be maintained under this general permit, including monitoring reports or reports of
compliance or noncompliance shall, upon conviction, be punished by a fine of not more
than $10,000 per violation, or by imprisonment for not more than two years per violation,
or by both.
SECTION B: GENERAL CONDITIONS
1. Genera_] Permit Expiration
The pennittee is not authorized to discharge after the expiration date. In order to receive
automatic authorization to discharge beyond the expiration date, the pennittee shall
submit forms and fees as are required by the agency authorized to issue permits no later
than 180 days prior to the expiration date. Any permittee that has not requested renewal
at least 180 days prior to expiration, or any permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will be
subjected to enforcement procedures as provided in NCGS § 143-2153.6 and 33 USC
1251 et. seq.
2, Transfers
The certificate of coverage issued pursuant to this general permit is not transferable to any
person except after notice to and approval by the Director. The Director may require
modification or revocation and reissuanee of the certificate of coverage to change the
name and incorporate such other requirements as may be necessary under the Clean
Part III Page 3 of 12 Pages

Permit No. NCG 140000
Water Act. Perrnittee is required to notify the Division in writing in the event the
permitted facility is sold or closed.
3. When an Individual Permit Maybe Required
The Director may require any owner/operator authorized to discharge under a certificate
of coverage issued pursuant to this general pert -nit to apply for and obtain an individual
permit or coverage under an alternative general permit. Any interested person may
petition the Director to take action under this paragraph. Cases where an individual
permit may be required include, but are not limited to, the following:
a. The discharger is a significant contributor of pollutants;
b. Conditions at the permitted site change, altering the constituents and/or
characteristics of the discharge such that the discharge no longer qualifies for a
general permit;
The discharge violates the terms or conditions of this general permit;
d. A change has occurred in the availability of demonstrated technology or practices
for the control or abatement of pollutants applicable to the point source;
e. Effluent limitations are promulgated for the point sources covered by this general
permit;
A water quality management plan containing requirements applicable to such
point sources is approved after the issuance of this general permit.
g. The Director determines at his own discretion that an individual permit is
required.
4. When an Individual Permit May be Requested
Any permittee operating under this general permit may request to be excluded from the
coverage of this general permit by applying for an individual permit. When an individual
permit is issued to an owner/operator the applicability of this general permit is
automatically terminated on the effective date of the individual permit.
Signatory Requirements
All applications, reports, or information submitted to the Director shall be signed and
certified.
All notices of intent to be covered under this general permit shall be signed as
fol lows:
(1) For a corporation: by a responsible corporate officer. For the purpose of
this Section, a responsible corporate officer means: (a) a president,
Part III Page 4 of 12 Pages

Permit No. NCG140000
secretary, treasurer or vice president of the corporation in charge of a
principal business function, or any other person who performs similar
policy or decision making functions for the corporation, or (b) the manager
of one or more manufacturing production or operating facilities employing
more than 250 persons or having gross annual sales or expenditures
exceeding 25 million (in second quarter 1980 dollars), if authority to sign
documents has been assigned or delegated to the manager in accordance
with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the
proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a
principal executive officer or ranking elected official.
b. All reports required by the general permit and other information requested by the
Director shall be signed by a person described above or by a duly authorized
representative of that person. A person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having
responsibility for the overall operation of the regulated facility or activity,
such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or
position having overall responsibility for environmental matters for the
company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Director.
C. Any person signing a document under paragraphs a, or b. of this section shall
snake the following certification:
"I certify, under penalty of law, that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the infonnation, the
information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing
violations."
G. General Permit Modification, Revocation and Reissuance, or Termination
The issuance of this general permit does not prohibit the Director from reopening and
modifying the general permit, revoking and reissuing the general permit, or terminating
Part III Page 5 of 12 Pages

Permit No. NCG 140000
the general permit as allowed by the laws, rules, and regulations contained in Title 40,
Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-
215.1 et. al.
After public notice and opportunity for a hearing, the general permit may be terminated
for cause. The filing of a request for a general permit modification, revocation and
rcissuance, or termination does not stay any general permit condition. The certificate of
coverage shall expire when the general permit is terminated.
7. Certificate of Coverage Actions
The certificate of coverage issued in accordance with this general permit may be
modified, revoked and reissued, or terminated for cause. The notification of planned
changes or anticipated noncompliance does not stay any general permit condition.
SECTION C: OPERATION AND MAINTENANCE OF POLLUTION CONTROLS
Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of
treatment and control (and related appurtenances) which are installed or used by the
permittee to achieve compliance with the conditions of this general permit. Proper
operation and maintenance also includes adequate laboratory controls and appropriate
quality assurance procedures. This provision requires the operation of back-up or
auxiliary facilities or similar systems which are installed by a permittee only when the
operation is necessary to achieve compliance with the conditions of the general permit.
2. Need to Halt or Reduce not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been
necessary to halt or reduce the permitted activity in order to maintain compliance with
the condition of this general permit.
3. Bypassing of Stormwater Control Facilities
Bypass is prohibited and the Director may take enforcement action against a permittee
for bypass unless:
a. Bypass was unavoidable to prevent loss of life, personal injury or severe property
damage; and
b. There were no feasible alternatives to the bypass, such as the use of auxiliary
control facilities, retention of stonnwater or maintenance during normal periods of
equipment downtime or dry weather. This condition is not satisfied if adequate
backup controls should have been installed in the exercise of reasonable
Part III Page 6 of 12 Pages

Permit No. NCG 140000
engineering judgment to prevent a bypass which occurred during normal periods
of equipment downtime or preventive maintenance; and
The permittee submitted notices as required under Section B of this permit.
If the Director determines that it will meet the three conditions listed above, the Director
may approve an anticipated bypass after considering its adverse effects.
4. Bypassing of Wastewater Treatment Facilities
The permittees may allow any bypass to occur which does not cause effluent limitations
to be exceeded, but only if it also is for essential maintenance to assure efficient
operation. These bypasses are not subject to the provisions of Part II[, Section C.4.a and
.Part 111, Section C.4.b.
a. Notices
(1) Anticipated bypass. If the permittees knows in advance of the need for a
bypass, it.shall submit prior notice, if possible at least ten days before the
date of the bypass, including an evaluation of the anticipated quality and
affect of the bypass.
(2) Unanticipated bypass. The pennittees shall submit notice within 24 hours
of becoming aware of an unanticipated bypass as required in Part 111,
Section E7. of this permit.
b. Prohibition of Bypass
(1) Bypass is prohibited and the Director may take enforcement action against
the pennittees for bypass, unless:
(a) Bypass was unavoidable to prevent loss of life, personal injury or
severe property damage; and
(b) 'There were no feasible alternatives to the bypass, such as the use of
auxiliary control facilities, retention of untreated waste or
maintenance during; normal periods of equipment downtime. This
condition is not satisfied if adequate backup should have been
installed in the exercise of reasonable engineering judgment to
prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(c) The permittees submitted notices as required under Part Ill, Section
CAa orthis pernit.
(2) The Director inay approve an anticipated bypass, after considering its
adverse affects, if the Director deternines that it will meet the three
conditions listed in Part 111, Section C.4.b.(I) of this permit.
Part III Page 7 of 12 Pages

Permit No. NCC140000
SECTION D: MONITORING AND RECORDS
Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic of
the volume and nature of the permitted discharge. Analytical sampling shall be
performed during a representative storni event. Samples shall be taken on a day and time
that is characteristic of the discharge. All samples shall be taken before the discharge
joins or is diluted by any other waste stream, body of water, or substance. Monitoring
points as specified in this permit shall not be changed without notification to and
approval of the Director.
2. Recording Results
For each measurement, sample, inspection or maintenance activity performed or collected
pursuant to the requirements of this general permit, the pennittee shall record the
following information:
a. The date, exact place, and time of sampling, measurements, inspection or
maintenance activity;
b. The individual(s) who performed the sampling, measurements, inspection or
maintenance activity;
The date(s) analyses were performed;
The individual(s) who performed the analyses;
The analytical techniques or methods used; and
The results of such analyses.
Flow Measurements
Where required, appropriate flow measurement devices and methods consistent with
accepted scientific practices shall be selected and used to ensure the accuracy and
reliability of measurements of the volume of monitored discharges.
4. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations
published pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting;
Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the
Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR 136.
To meet the intent of the monitoring required by this general permit, all test procedures
must produce minimum detection and reporting levels and all data generated must be
reported down to the minimum detection or lower reporting level of the procedure.
Part III Page 8 of 12 Pages

Permit No. NCG 140000
Representative Outfall
If a facility has multiple discharge locations with substantially identical stormwater
discharges that are required to be sampled, the permittee may petition the Director for
representative outfall status. if it is established that the stormwater discharges are
substantially identical and the permittee is granted representative outfall status, then
sampling requirements may be performed at a reduced number of outfalls.
G. Records Retention
Qualitative monitoring shall be documented and records maintained at the facility along
with the Stormwater Pollution Prevention Plan. Copies of analytical monitoring results
shall also be maintained on -site. The permittee shall retain records of all monitoring
information, including all calibration and maintenance records and all original strip chart
recordings for continuous monitoring instrumentation, and copies of all reports required
by this general permit for a period of at least 5 years from the date of the sample,
measurement, report or application. This period may be extended by request of the
Director at any time.
7. Inspection and ntry
The pennittee shall allow the Director, or an authorized representative (including an
authorized contractor acting as a representative of the Director), or in the case of a facility
which discharges through a municipal separate storm sewer system, an authorized
representative of a municipal operator or the separate stonn sewer system receiving the
discharge, upon the presentation of credentials and other documents as may be required
by law, to;
Enter upon the permittee's premises where a regulated facility or activity is located
or conducted, or where records must be kept under the conditions of this general
pen -nit;
b. Have access to and copy, at reasonable times, any records that must be kept under
the conditions of this general permit;
G. Inspect at reasonable times any facilities, equipment (including monitoring and
control equipment), practices, or operations regulated or required under this
general pen -nit; and
d. Sample or monitor at reasonable times, for the purposes of assuring general
permit compliance or as otherwise authorized by the Clean Water Act, any
substances or parameters at any location.
Part III Page 9 of 12 Pages

Permit No. NOG 140000
SECTION E: REPORTING REQUIREMENTS
Discharge Monitoring Reports
Samples analyzed in accordance with the terns of this permit shall be submitted to the
Division on Discharge Monitoring Report forms provided by the Director. Submittals
shall be received by the Division no later than 30 days from the date the facility receives
the sampling results from the laboratory.
Documentation of the qualitative monitoring associated with the initial analytical
monitoring event shall be included with the required analytical monitoring submittal for
the first year of the pen -nit coverage.
Analytical results from sampling during the final year of the permit coverage shall be
submitted with the permit renewal application,
2. Submitting Reports
Duplicate signed copies of all reports required herein, shall be submitted to the following
address:
Division of Water Quality
Water Quality Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Availability f Reports
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section
308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms
shall be available for public inspection at the offices of the Division of Water Quality As
required by the Act, analytical data shall not be considered confidential. Knowingly
making any false statement on any such report may result in the imposition of criminal
penalties as provided for in NCGS 143-215.6E or in Section 309 of the Federal Act.
4. . Non-Stormwater Discharges
If the storm event monitored in accordance with this general permit coincides with a non-
stornzwater discharge, the permittee shall separately monitor all parameters as required
under the non-stormwater discharge permit and provide this information with the
storinwater discharge monitoring report.
5. Planned Changes
The perinittec shall give notice to the Director as soon as possible of any planned changes
at the permitted facility which could significantly alter the nature or quantity of pollutants
discharged. This notification requirement includes pollutants which are not specifically
Part III Page 10 of 12 Pages

Permit No. NCG 140000
listed in the general permit or subject to notification requirements under 40 CFR Part
122.42 (a).
Anticipated Noncompliance
The permittee shall give notice to the Director as soon as possible of any planned changes
at the pernitted facility which may result in noncompliance with the general permit
requirements.
Noncompliance Notification
The permittees shall report by telephone to either the central office or the appropriate
regional office of the Division as soon as possible, but in no case more than 24 hours or
on the next working day following the occurrence or first knowledge of the occurrence of
any of the following;
Any occurrence at the wastewater treatment facility which results in the discharge
of significant amounts of wastes which are abnormal in quantity or characteristic,
or any other unusual circumstances.
Any process unit failure, due to known or unknown reasons, that render the
facility incapable of adequate wastewater treatment such as mechanical or
electrical failures of pumps, aerators, compressors, etc.
C. Any failure of a treatment facility resulting in a by-pass directly to receiving
waters without treatment of all or any portion of the influent to such facility.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 5 days following first knowledge of the occurrence.
Bypass
a. Anticipated bypass. If the permittee knows in advance of the need for a bypass, it
shall submit prior notice, if possible at least ten days before the date of the bypass;
including an evaluation of the anticipated quality and affect of the bypass.
Unanticipated bypass. The permittee shall submit notice within 24 hours of
becoming aware of an unanticipated bypass.
Twenty-four Hour Reporting
The permittee shall report to the central office or the appropriate regional office any
noncompliance which may endanger health or the environment. Any information shall be
provided orally within 24 hours from the time the permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the
permittee becomes aware of the circumstances.
Part III Page I I of 12 Pages

Permit No. NCG 140000
The written submission shall contain a description of the noncompliance, and its causes;
the period of noncompliance, including exact dates and times, and if the noncompliance
has not been corrected, the anticipated time compliance is expected to continue; and steps
taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance.
The Director may waive the written report on a case -by -case basis if the oral report has
been received within 24 hours.
10. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under 24 hour
reporting at the time monitoring; reports are submitted.
11. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in a Notice
of Intent to be covered under this general permit or in any report to the Director, it shall
promptly submit such facts or information.
Part Ill Page 12 of 12 Pages

Permit No. NCG 140000
PART IV LIMITATIONS REOPENER
This general permit shall be modified or alternatively, revoked and reissued, to comply with any
applicable effluent guideline or water duality standard issued or approved under Sections 302(b)
(2) (c), and (d), 304(b) (2) and 307(a) of the Clean Water Act, if the effluent guideline or water
quality standard so issued or approved:
a. Contains different conditions or is otherwise more stringent than any effluent limitation in
the general permit; or
b. Controls any pollutant not limited in the general permit.
The general permit as modified or reissued under this paragraph shall also contain any other
requirements in the Act then applicable.
PART V ADMINISTERING AND COMPLIANCE MONITORING FEE
REQUIREMENTS
The permittee must pay the administering and compliance monitoring fee within 30 (thirty) days
after being billed by the Division. Failure to pay the fee in timely manner in accordance with
15A NCAC 2H .0105(b)(4) may cause this Division to initiate action to revoke the Certificate of
Coverage.
PART VI DEFINITIONS
1. Act
See Clean Water Act.
2. Arithmetic Mean
The arithmetic mean of any set of values is the summation of the individual values
divided by the number of individual values.
3. Allowable Non-Stormwater Dischar cs
This permit regulates stormwater and process wastewater discharges. Non-stormwater
discharges which shall be allowed in the stormwater conveyance system are:
(a) All other discharges that are authorized by a non-stormwater NPDES permit.
i
Parts IV, V and VI Page 1 of 6

Permit No. NCG 140000
(b) Uncontaminated groundwater, foundation drains, air -conditioner condensate
without added chemicals, springs, discharges of uncontaminated potable water,
waterline and fire hydrant flushings, water from footing drains, flows from
riparian habitats and wetlands.
(c) Discharges resulting from fire -fighting or fire -fighting training.
4. Best Management Practices (BMPs)
Measures or practices used to reduce the amount of pollution entering surface waters.
BMPs may take the form of a process, activity, or physical structure.
5. Bypass
A bypass is the known diversion of stornnvater and or process wastewater from any
portion of a stormwater or process wastewater control facility including the collection
system, which is not a designed or established operating mode for the facility.
6. Bulk Stora ,e of _iquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a
single above ground storage container having a capacity of greater than 660 gallons or
with multiple above ground storage containers located in close proximity to each other
having a total combined storage capacity of greater than 1,320 gallons.
7. Certificate of Coverage
The Certificate of Coverage (COC) is the cover sheet which accompanies the general
permit upon issuance and lists the facility name, location, receiving stream, river basin,
effective date of coverage under the permit and is signed by the Director.
$. Clean Water Act
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as
amended, 33 USC 1251, et. seq.
9. Division or DWQ
The Division of Water Quality, Department of Environment, Health and Natural
Resources.
10. Director
The Director of the Division of Water Quality, the permit issuing authority.
['art VI Page 2 of 7 Pages

Pennit No. NCG140000
20. Process Wastewater
For the purposes of this permit, process wastewater is wastewater generated from the
following activities:
(a) Vehicle and equipment cleaning operations. For the purposes of this permit, vehicle and
equipment cleaning is limited to the rinsing of the external surfaces of vehicles and
equipment. If detergents are used, they must be biodegradable and the wastewater pH
adjusted to 6 to 9 standard units
(b) Recycle system operations overflow discharge. Overflow discharge refers to a
discharge associated with an excessive precipitation event, which produces influent
that exceeds the design capacity of the system. By design, a recycle system is
closed loop and should not discharge on a routine or continuous basis. As such, the
routine or continuous discharge of process wastewater from recycle systems is not
authorized under this permit.
(c) Raw material stockpile wetting operations. This includes wetting for control of
temperature and moisture content. Washing of raw materials is not authorized
under this permit.
(d) Mixing druni-cleaning operations. This includes vehicle Inixing d111111 and facility
mixing drum cleaning.
21. Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall and that is prec ied by at least 72
hours in which no storm event measuring greater than 0.1 inches has occurred. A single storm
event may contain up to 10 consecutive hours of no precipitation. For example, if it rains for 2
hours without producing any collectable discharge, and then stops, a sample may be collected if a
rain producing a discharge begins again within the next 10 hours.
22. Representative Outfall Status
When it is established that the discharge of stormwater runoff from a single outfall is
representative of the discharges at multiple outfalls, the DWQ may grant representative
outfall status. Representative outfall status allows the permittee to perform analytical
monitoring at a reduced number of outfalls.
23. Secondary Containment
Spill containment for the contents of the single largest tank within the containment
structure plus sufficient freeboard to allow for the 25-year, 24-hour storm event.
Part Vl Page 4 of 7 Pages

I'ennit No. NCG 140000
11. EMC
The North Carolina Enviromner.tial Management Commission.
12. Grab Sample
An individual samples collected instantaneously. Grab samples that will be directly
analyzed or qualitatively monitored must be taken within the first 30 minutes of
discharge.
13. Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean
Water Act_
14. Landfill
A disposal facility or part of a disposal facility where waste is placed in or on land and
which is not a land treatment facility, a surface impoundment, an injection well, it
hazardous waste long-term storage facility or a surface storage facility.
15. Municipal Separate Storm Sewer System
A stormwater collection system within an incorporated area of local self-government such
as a city or town.
16. Notice of Intent
The state application form which, when submitted to the Division, officially indicates the
facility's notice of intent to seek coverage under a general permit.
IT Overburden
Any material of any nature, consolidated or unconsolidated, that overlies a mineral
deposit, excluding topsoil or similar naturally -occurring surface materials that are not
disturbed by mining operations.
18. Permittee
The owner or operator issued a certificate of coverage pursuant to this general permit.
19. Point Source Discharge of Stotmwater
Any discernible, confined and discrete conveyance including, but not specifically limited
to, any pipe, Glitch, channel, tu11116, conduit, well, or discrete fissure from which
stormwater is or may be discharged to waters of the state.
Part VI Page 3 of 7 Pages

Permit No. NCG 140000
24. Section 313 Water Prioritv Chemical
A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund
Amendments and Reauthorization Act (SARA) of 1986, also titled the Emergency
Planning and Community Right -to -Know Act of 1986;
b. Is present at or above threshold levels at a facility subject to SARA title III,
Section 313 reporting requirements; and
That meet at least one of the following criteria:
(1) Is listed in appendix D of 40 CFR part 122 on either Table II (organic
priority pollutants), Table III (certain metals, cyanides, and phenols) or
Table IV (certain toxic pollutants and hazardous substances);
(2) Is listed as a hazardous substance pursuant to section 31 1(b)(2)(A) of the
CWA at 40 CFR 116.4; or
(3) Is a pollutant for which EPA has published acute or chronic water quality
criteria.
25. Severe Property Damage
Means substantial physical damage to property, damage to the control facilities which
causes them to become inoperable, or substantial and pennanent loss of natural resources
which can reasonably be expected to occur in the absence of a bypass. Severe property
damage does not mean economic loss caused by delays in production.
26. Significant Materials
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents,
and plastic pellets; finished materials such as metallic products; raw materials used in
food processing or production; hazardous substances designated tinder section 101(14) of
CLRCLA; any chemical the facility is required to report pursuant to section 313 of Title
1.11 of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that
have the potential to be released with stormwater discharges.
27. Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of
reportable quantities under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and
CFR 1 17.21) or section 102 of CLRCLA (Ref: 40 CFR 302.4).
Part VI Page 5 of 7 Pages

Permit Nu. NCG 140000
2$, Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately
following rainfall or as a result of snowmelt.
29. Stormwater Associated with Industrial Activity
The discharge from any point source which is used for collecting and conveying
storniwater and which is directly related to manufacturing and processing at an industrial
site. Facilities considered to be engaged in "industrial activities" include those activities
defined in 40 CFR 122.26(b)(14). The term does not include discharges from facilities or
activities excluded from. the NPDES program.
30. Stormwater Pollution Prevention Plan
A comprehensive site -specific plan which details measures and practices to reduce
stonnwater pollution and is based on an evaluation of the pollution potential of the site.
31. Ten Year Design Storm
The maximum 24 hour precipitation event expected to be equaled or exceeded on the
average once in ten years. Design storm information can be found in the State of North
Carolina Erosion and Sediment Control Planning and Design Manuai.
32. Total Flow
The flow corresponding to the time period over which the entire storm event occurs.
Total flow shall be either; (a) measured continuously, (b) calculated based on the amount
of area draining to the outfall, the amount of built -upon (impervious) area, and the total
amount of rainfall, or (c) estimated by the measurement of flow at 20 minute intervals
during the rainfall event.
33. Toxic Pollutant
Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
34. Upset
Means an exceptional incident in which there is unintentional and temporary
noncompliance with technology based permit effluent limitations because of factors
beyond the reasonable control of the permittee. An upset does not include
noncompliance to the extent caused by operational error, improperly designed treatment
or control facilities, inadequate treatment or control facilities, lack of preventive
maintenance, or careless or improper operation.
Part VI ['age 6 of 7 Pages

Permit No. NCG 140000
35. Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling, lubrication, operations, or
airport deicing operations.
36. Vehicle and equipment cleaning
For the purposes of this perinit, this cleaning is limited to the rinsing of the external
surfaces of vehicles and equipment. If detergents are used, they must be biodegradable
and the pFI adjusted to 6 to 9 standard units
37. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported
by water, air, gravity, or ice from its site of origin which can be seen with the unaided
eye.
38. 25-year, 24 hour storm event
The maximum 24-11our precipitation event expected to be equated or exceeded, on the
average, once in 25 years.
Part VI Page 7 of 7 Pages

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