NCG140392_COMPLETE FILE - HISTORICAL_20190731

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
Iv C& /LYD39A
DOCTYPE
Q�HISTORICALFILE
❑ MONITORING REPORTS
DOC DATE
❑ O� �
YYYYMMDD

Permit NCG140392
SOC
County Forsyth
Region Winston-Salem
Compliance Inspection Report
Effective 06/08/09 Expiration 07/31/09 Owner Concrete Supply Co
Effective Expiration Facility Central Carolina Concrete -Winston Salem
Plant
195 Apac St
Contact Person Robert Crews
Directions to Facility
System Classifications
Primary ORC
Secondary ORC(s)
On Site Representative(s)
Related Permits
Inspection Elate 03/1212009
Primary Inspector Rose Pruitt
Secondary Inspector(s)
Title
EntryTime 10 00 AM
Winston Salem NC 27106
Phone [phone]
Certification
Exit Time 11 00 AM
Phone
Phone [phone]
Reason for Inspection Other Inspection Type Compliance Evaluation
Permit Inspection Type Ready Mix Concrete StormwaterANastewater Discharge
COC
Facility Status ❑ Compliant 0 Not Compliant
Question Areas
E Storm Water
(See attachment summary)
CAROLINAS AGC
PINNACLE AWARD WINNER
S
BEST SUPPLIER
JOHNIE ALEXANDER
ENVIRONMENTAL MANAGER
OFRCE [phone] EXT 2071
MOBILE [phone] RALEIGH STREEa 28206
FAX [phone] P 0 BOX 5247
NEXTEL ID 150 202 131 CHARLOTTE NC 28299
E-MAIL Johnoe Alexander@CpncreteSuppl Co corn
Page 1

It
Permit NCG140392 Owner Facility Concrete Supply Co
Inspection Date 03/12/2009 Inspection Type Compliance Evaluation Reason for Visit Other
Inspection Summary
Site visit 3/12/2009 at request of Johnny Alexander wl Concrete Supply to see if site was exempt from stormwater
permitting Facility had submitted NOI (ncg140357) in 912005 to SW permitting unit which was returned to facility 2/08
Reccomend facility reapply for permit Noted that with a couple of minor corrections all stormwater flows to a large SW
pond that will rarely discharge Spoke to Ken Pickle in SWPU about issuing permit
Permit and Outfalls
# Is a copy of the Permit and the Certificate of Coverage available at the site?
# Were all outfalls observed during the inspection?
# If the facility has representative outfall status is it properly documented by the Division?
# Has the facility evaluated all illicit (non stormwater) discharges?
Comment
Yes No NA NE
Page 2

Apac St Winston Salem, NC by MapQuest http //www mapquest com/maps9clty=Winston+Salem&state=NC&ad
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41 195 Apac St
Winston Salem NC 27107
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CONCRETE SUPPLY CO
STORMWATER COMPLIANCE SURVEY
FACILITY IN
NONCOMPLIANCE
PLANT
NAME
COST TO BRING FACILITY
INTO COMPLIANCE
TIME TO BRING FACILITY
INTO COMPLIANCE
A
CSC NORTH
$59 500 00
Jun-06
B
CSC SOUTH
$42 000 00
Jun-06
C
CSC WEST
$97 000 00
Dec-06
D
CSC CROFT
$99 00000
Se -06
E
CSC MOORESVILLE
$9 500 00
Mar-06
F
CSC ARROWOOD
$80 00000
Jun-06
G
CSC MATHEWS
$61 00000
Se -06
H
CSC MONROE
S79 000 00
Dec-06
I
CSC GASTONIA
$50 500 00
Se -06
J
CSC SHELBY
$96 000 00
Dec-06
K
CSC LINCOLNTON
$82 000 00
Se -06
L
CSC DENVER
$82 000 00
Dec-06
M
CSC CONCORD
$63 500 00
Mar-07
N
CSC KANNAPOLIS
$14 000 00
Dec-06
O
CSC SALISBURY
$14 000 00
Dec-06
P
CSC ALBEMARLE
$75 50000
Mar-07
Q Not
CSC MOCKSVILLE
$8 000 00
Mar-06
R ma's-
CCC PLANT 1 4,w
ep $849 000 00
Dec-07
S >if
CCC PLANT 2
$51 000 00
Mar-07
T t4 OI
CCC PLANT 3 r-iu
r,K $30 000 00
Jun-06
U
TRI CITY
$34 00000
Dec-07
--), 7- 'is go
$1 976 500 00 TQTAL
+�u-cctrtivkr� c�•r�-�-M{ � n-o.,� .��..�1
MA—{ ^tcT AjMD i 2r(i
To DtSu
f7c-A-r4T � ,�t�r .v GatiC2gT� dC3
CAROLINAS AGC
a PINNACLE AWARD WINNER
i BEST SUPPLIER
HENRY R BATTEN
EXECUTIVE VICE PRESIDENT
nu t-!F-
DIRECT [phone]
OFFICE [phone] 3823 RALEIGH STREET
FAX [phone] PO BOX 5247
MOBILE (704} 201 6197 E rt I IgyygypCH CHARLOTTE NC 28299
Hoorn

Beverly Eaves Perdue
Governor
�1 ds �®
■ CDE
North Carolina Department of Environment and Natural
Division of Water Quality
Coleen H Sullins
Director
June 8, 2009
Mr Johnie Alexander, Environmental Manager
Concrete Supply Company
3823 Raleigh Street
POB 5247
Charlotte, North Carolina
Subject
Dear Mr Alexander
RECEiVEOX
N C Dect of ENii
JUN0920M
lJrceSVinstcn Sale-
` Regional p ,cv
Dee Freeman
Secretary
General Permit No NCG 140000
Central Carolina Concrete — W-S Plant
COC No NCG140392
Forsyth County
In accordance with your application for a discharge permit received on April 2, 2009, we
are forwarding herewith the subject certificate of coverage (COC) to discharge under the subject
state — NPDES general permit This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215 1 and the Memorandum of Agreement between North Carolina
and the US Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended)
Please note that this certificate of coverage is not transferable except after notice to, and
specific action by, the Division of Water Quality fhe Division of Water Quality may require
modification or revocation and reissuance of the certificate of coverage This permit does not
affect the legal requirements to obtain- other permits which may be required 6y the Division of
Water Quality or permits required by the Division of Land Resources, Coastal Area Management
Act, or any other federal or local governmental permit that may be required
Please note that any future construction, installation, or modification of wastewater
treatment facilities (including process wastewater recycle systems) will require an Authorization
to Construct (ATC) prior to construction per 15A NCAC 2H 0138 & 0139 You must submit,
in triplicate, plans/specifications and design calculations, stamped and sealed by a professional
engineer, with a letter requesting an ATC to the Stormwater Permitting Unit, 1617 Mail Service
Center, Raleigh, NC 27699-1617 ]
Wetlands and Stormwater Branch One
1617 Mail Service Center Raleigh North Cadma27699 1617 Not thCaroltna
Lucabon 512 N Salisbury St Raleigh North Caro li. 21604
Phone 91M07 63001 FAX [phone] Custa* Service 1 877-623 6748 Naturally
Intemet www ncwaterquality org i/
An Equal Opportunity 1 Affirmative Adhon Employa

Mi Johnle Alexander
Ceiitral Carolina Concrete
NCG 140392
.tune 8, 2009
Please contact Ken Pickle at telephone number [phone] with any questions
Sincerely,
4� /Vzze__�
for Coleen H Sullins
(IC, Winston-Salem Regional Office, Rose Pruitt
DWQ Central Files
Stormwater Perniiaffig Unit files
enclosure

r
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO NCG140000
CERTIFICATE OF COVERAGE No NCG140392
STORMWATER AND PROCESS WASTEWATER DISCHARGES
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,
Concrete Supply Company
is hereby authorized to operate a process wastewater treatment system, and is hereby authorized to discharge process
wastewater and stormwater from a facility located at
Central Carolina Concrete — Winston-Salem Plant
195 Apache Drive
Winston-Salem, North Carolina
Forsyth County
to receiving waters designated as unnamed tributary to Fiddler's Creek, a class C water in the Yadkin -Pee Dee River
Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts 1,
II, Ili, IV, V, and VI of General Permit No NCG140000 as attached
This certificate of coverage shall become effective June 8, 2009
This Certificate of Coverage shall remain in affect for the duration of the General Permit
Signed this day June 8, 2009
Irw Coleen H Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Markers
Name Discharge Site - NCG140392
Short Name Dschrg
Coordinates 036' 03' 15 9' N 0800 12' 27 0" W
Comment Central Carolina Concrete - Winston-Salem Plant subbasin 03-07-04 Yadkin -Pee
Dee River Basin Forsyth County, unnamed tributary to Fiddler's Creek class
C, USGS quad C18SE

ML 'r
Akvi!A�`
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
Coleen H Sullins
Director
June 8, 2009
Mr Johme Alexander, Environmental Manager
Concrete Supply Company
3823 Raleigh Street
POB 5247
Charlotte, North Carolina
Dear Mr Alexander
Subject General Permit No NCG140000
Dee Freeman
Secretary
Central Carolina Concrete — W-S Plant
COC No NCG 140392
Forsyth County
In accordance with your application for a discharge permit received on April 2, 2009, we
are forwarding herewith the subject certificate of coverage (COC) to discharge under the subject
state — NPDES general permit This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215 1 and the Memorandum of Agreement between North Carolina
and the US Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended)
Please note that this certificate of coverage is not transferable except after notice to, and
specific action by, the Division of Water Quality The Division of Water Quality may require
modification or revocation and reissuance of the certificate of coverage This permit does not
affect the legal requirements to obtain -other permits which may be required 6y the Division of
Water Quality or permits required by the Division of Land Resources, Coastal Area Management
Act, or any other federal or local governmental permit that may be required
Please note that any future construction, installation, or modification of wastewater
treatment facilities (including process wastewater recycle systems) will require an Authorization
to Construct (ATC) prior to construction per 15A NCAC 21-I 0138 & 0139 You must submit,
in triplicate, plans/specifications and design calculations, stamped and sealed by a professional
engineer, with a letter requesting an ATC to the Stormwater Permitting Unit, 1617 Mail Service
Center, Raleigh, NC 27699-1617 j
Wetlands and Stonwater Branch One
1617 Mail Service Center Ralegh North Carolina 27699 1617 Noi thCarolina
Location 512 N Salisbury St Ralegh North Carolina 27604
Phone [phone] FAX [phone] Customer Service 1 877-623 6748 �atur�iCtr�
internet www ncwaterquality org
An Equal Opportunity 1 Affirmative Acton Employer

Mr Johnie Alexander r •
Central Carolina Concrete
NCG 140392
tune 8, 2009
Please contact Ken Pickle at telephone number [phone] with any questions
S111cciely,
for Coleen H Sullins
cc Winston-Salem Regional Office, Rose Pruitt
DWQ Central Files
Stormwater Permitting Unit Liles
enclosure

STATE OF NORTI I CAROLINA
DEPARTMENT OF ENVIRONMEN C AND NATURAL RESOURCES
DIVISION OF WA I ER QUALITY
GENERAL PERMIT NO NCG140000
CERTIFICATE OF COVERAGE No NCG140392
STORMWATER AND PROCESS WASTEWATER DISCHARGES
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,
Concrete Supply Company
is hereby authorized to operate a process wastewater treatment system, and is hereby authorized to discharge process
wastewater and stormwater from a facility located at
Central Carolina Concrete — Winston-Salem Plant
195 Apache Drive
Winston-Salem, North Carolina
Forsyth County
to receiving waters designated as unnamed tributary to Fiddler's Creek, a class C water in the Yadkin -Pee Dee River
Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
1I, III, 1V, V, and Vt of General Permit No NCG 140000 as attached
This certificate of coverage shall become effective June 8, 2009
This Certificate of Coverage shall remain in effect for the duration of t17e General Permit
Signed this day June 8, 2009
Irw Coleen H Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

ark'
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Markers
Name Discharge Site - NCG140392
Short Name Dschrg
Coordinates 0360 03 15 9" N, 0800 12 27 0' W
Comment Central Carolina Concrete - Winston-Salem Plant subbasrn 03-07-04, Yadkin -Pee
Dee River Basin, Forsyth County, unnamed tributary to Fiddler's Creek, class
C, USGS quad C18SE

�`+�g '
.-�.�
NCDENR
*icm+. G.rso� D + ev or
F�rx wV Nlr Mn NIW,fw FF cj%C a
NOTICE OF INTENT
n6�
Division of Water Quality / Surface Water Protection
National Pollutant Discharge Elimination System
NCG140000
FOR AGENCY USE ONLY
Date Received
Year
I Month
Da
0
D
6 Z
Certificate of Covers e
N C G 1 40
Check #
I Amount
2- 1
6 --
Pcmut A,,, ed to
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 NOI 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 existin plant sites discharging or recycling process wastewater (even if commingled with
stormwater) This NOI is also an APPLICATION FOR Authorization to continue tooperate 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 flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H 0138 The 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 treatment 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 staff2 along with this application A copy of the design
calculations should be included Please see questions 14 & 15
�� i I For questions, please contact the DWO Regional Office for your area (See page 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be mailed)
Name Cor1<e,e4e 5,Aooki (-0rA0crtLA - Alexander 'r
Street Address
City
Telephone No
392
I�crlot�� State NC ZIP Code 26206
70q_ 3 rz - Zel30 Fax 70q 3 31/- 965
2) Location of facility producing discharge
Facility Name Cren r4[ Crk;-a I -'2a Gon�-,Eet-erA plwi+__
Facility Contact �So tN n i e A lex nn X-P-T
Street Address 1 qS Anncke_ vim_
City Q,A,�i 0A - Satf tw State N C. ZIP Code Z 7-lo --
County _ For .5*-rh �.
Telephone No 7oq 372 v Z5 3© Fax 70 l 33q 86 5-0
Page 1 of 5
'As per 15A NCAC 2H 0106
2Unless 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 7/14/08

�r r
NCG140000 N O 1
,/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 TinaiAes vi 1I-e ilk" } T 'ID Trtirvi?-1 0 3
M•1Its so-A-ke,;-0 tW At2acktt Oi-f+2 _ iutn 1e_­P+ o1 ApCLL-k.p_ cAA -304e+-
(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 36' 03' ` -21/'' N Longitude 90 12' 51" E (deg, min, sec)
5) This NPDES Permit Application applies to which of the following
❑ New or Proposed Facility Date operation is to begin
N 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 )
✓ 8) Discharge points 1 Receiving waters
How many discharge points (ditches, pipes, channels, etc ) convey stormwater and/or wastewater from the
property !h cr-
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 ins _ F - del 1-zr s Cc�e_h _
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) Iy A ^
Receiving water classification (if known) C
Note Discharge of process wastewater to receiving waters classified as WS-11 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)
X 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)?
® 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
15� Yes 11
If yes, please briefly describe J Zec rt-2 (cSS c 4.cr ►J�t ��� �'''� v
) �, H--
Page 2 of 5
SWU 229 071408 Last revised 7/14/2008

NCG140000 N O 1
/12) Does this facility have a Stormwater Pollution Prevention Plan
❑ No
CM Yes
If yes, when was it implemented? Z OU 7
13) Are vehicle maintenance activities occurring or planned at this facility')
X No
❑ 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 ® No
Mixing drum cleaning (A Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater
'=1r For a sufficient application, you must provide design specifics (e g , design volume, retention time, surface
1 � 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 mlll ) [Use separate sheet(s)]
If all these discharges are recycled, please refer to Question 15
For Wants that recycle and/or 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, etc
Please note If new treatment systems are planned for an existin_g 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 DWQ may
request the status of your plans for requesting an ATC upon issuance of the COC
,i 15) Does the facility use or plan to use a recycle system')
❑ No
19 Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24 hr)
410 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)]
For a sufficient application, the information must demonstrate compliance of final discharge with permit
1 effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) — 5 mill), 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 3of5
5WU 229 071408 Last revised 7/14/2008

NCG140000 N O 1
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain)
(9 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 fatality a Hazardous Waste Treatment, Storage, or Disposal Facility?
]� No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg of hazardous waste generated per month) of
hazardous waste?
No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg or more of hazardous waste generated per month) of
hazardous waste9
N No
❑ Yes
d) If you answered yes to questions b or c , please provide the following information
Type(s) of waste A
How is material stored
Where is material stored
Haw 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 maintainer♦ under this 4rtiLle or a rule implementing this Article or who knowingly makes a false
statement of a material fact in a ruiemakmg proceeding or contested case under this Article or who falsifies 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 shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10 000)
I hereby request coverage under the referenced General Permit I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable to 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 true, complete, and accurate
Printed Name of Person Signing ,,"e i i31 f��
Title /- ✓Q 7-
__ r
of Apphcant)
`4 7.1 6rf
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100 00 made payable to
NC.DENR
Page 4 of 5
^"" -- -- Last retitsed 7/14/2008

t
NCG140000 N Q 1
Final Checklist
This application will be returned as incomplete unless all of the following items have been included
d Check for $100 made payable to NCDENR
EF" This completed application and all supporting documentation (including design details and calculations for
treatment systems)
—r ❑ 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
1 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)
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 onl if plans not available a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping , set 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
stormwaterlwastewater 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
[phone]
Wilmington Office
[phone]
Winston-Salem
[phone]
Central Office
[phone]
-exit t Il/C�1 7��d7� /r+'lle Lam/
ire %t24 7lo�may
Ne- [e&,xve /p c.
rles70 bt4sis
✓5���!'rr37�ia�.
swU 229.7i408
c�PsIpr! Cafes, t
-/-A' " e{�/u� `/ylDa r �WY�H4 Is /!)
Page 5 of 5 47
Last revised 7/14/2008

SUPPORTING DOCUMENTS FOR
NOTICE OF INTENT
GENERAL PERMIT NCG140000
CENTRAL CAROLINA CONCRETE
WINSTON-SALEM PLANT
Prepared for
Central Carolina Concrete
Charlotte, North Carolina
Prepared by
TrigonEKlemfelder, Inc
6200 Harris Technology Blvd
Charlotte, North Carolina 28269
Michael A Sussman, PE
Signature
Date
Kleinfelder Project No 018-07-005
March 26, 2009
�ttttttii�rir►r++�
CARpC�'''''%
SEAL.
275 ;
P ==
iC FNGIN� �Q'
/Z1 &0 r P111Fk) s e

TABLE OF CONTENTS
1 0 Facility Data
1 1 Facility Description
2 0 Drainage Characteristics
2
2
3
3 0 Water Quality Control Structures 3
31 Sediment Control Pond 4
32 Process Water Control System 4
3 2 1 Curbed Area for Truck Washdown/Washout 4
3 2 2 Four (4) In -ground Concrete Sumps 4
323 Portable Recycle Pump 5
324 Carbon Dioxide Distribution System 5
325 Detention Pond Controlling Site Wide Discharges 6
4 0 Permit Compliance
FIGURES
Figure 1 Site Location
Figure 2 Site Layout and Drainage Map
Figure 3 Process Water Detail
ATTACHMENTS
Site Photos
Carbon Dioxide Distribution System Data
Calculations
6

I r t
Central Carolina Concrete — V`mston Salem Plant March 26 2009
Supporting Document of NO] Winston Salem, North Carolina Protect No 018 07 005
10 Facility Data
Project Concrete Supply Co
Project Location 195 Apac Street, Winston-Salem, NC
River Bann Yadin-Pee Dee
Sub -basin Lower Yadkin
Receiving Waters Unnamed Tributary to Fiddlers Creek
Current Classification C ✓
Total Project Drainage Area 9 15 Acres
Major Drainage Areas 2 (one industrial and one non -industrial)
Soils CcB (Cecil Sandy Loam), PaB (Pacolet Fine Sandy Loam), PaF (Pacolet
Fine Sandy Loam), PcC2 (Pacolet Clay Loam)
Site Figures (included as attachments to this plan) arc detailed below
+ Figu re l Site Location Map —a topographic map with the approximate location of
property boundaries at the site
• Figure 2 Site Layout and Drainage Map - a site map which details building locations,
stormwater conveyance structures, stormwater outfall, surface flow directions, and
industrial process areas of the facility
• Figure 3 Process Water Detail — a detail from Figure 2 showing the process water
management system
1 1 Facility Description
Central Carolina Concrete's Winston-Salem plant is a ready mix concrete batching plant located at 195
Apache Drive in Winston-Salem, Forsyth County, North Carolina The entire area of the property is
approximately 9 15 acres of which the majority is developed Industrial activities exposed to stormwater
include the concrete batch plant, truck parking, truck load -out, truck wash -down, aggregate storage piles,
4 t/ L ✓ � r
aggregate hoppers, aggregate conveyors, admixture tanks, material storage, vehicle parkmg, diesel fuel
V
storage and dispensing, and wash -water recycling system The facility includes two primary water quality
v
control features, a sediment control pond and a process water capture and recycle/treatment system
TRIGom I KL$whFLUFR /NC Page 2

� , a
Central Carolina Concrete — Winston Salem Plant March 26 2009
Supportmg Document of NDI_ Wtosion Salem, North Carolina Protect No 018 07 005
2 0 Drainage Characteristics
A Site Location Map for the facility, Figure 1, shows the site proximity to the drainage ditches and the
ultimate receiving water for stormwater and process wastewater The site is divided into two separate
drainage areas (as detailed in Figure 2) Drainage Area I consists of the process areas of the site and ✓
Drainage Area 2 consists of wooded land
(Stormwater runo0rom the portions of the site on which industrial activities take place, as detailed in
Figure 2, discharges through a drainage Swale into an on -site detention pond The detention pond
discharges into an overflow pipe at Outfall 001
Outfall 001 is located at the point where the steel overflow pipe in the detention pond discharges into a
rip -rap lined drainage ditch that flows away from the facility The rip -rap lined drainage ditch channels
flow south then easttapproximately 300 yards where it discharges into an unnamed tributary to Fiddlers
Creek Con r-us�ar G�"i"Pc�r��s '%
Stormwater drainage in Drainage Area 1 is channeled by s}te grading and a drainage Swale that flows
L1
from the�soufh'sid)eof the aggregate storage bin (South and eas�to the detention pond on the southeast)
portion of the property The detention pond would discharge in the event of an overflow and the discharge)
would flow through an overflow pipe where it would discharge northeast of the wet detention pond into a
rip -rap lined ditch at Outfall 001
Stormwater drainage in Drainage Area 2 flows as sheet flow to the wooded area east of the process area
where it eventually is collected in the ditch that flows from Outfall 001
Stormwater leaving the site eventually flaw east and south to an unnamed tributary to Fiddlers Creek,
approximately 300 yards southeast of the site
3 0 Water Quality Control Structures
The facility includes two primary water quality control features, a sediment control' p�d and a process water
control systell - These systems are presented on the original site development plan (developed by Chas H
Sells, Inc in August of 2004) which has been used as the basis for the attached Figures 2 and 3
TRIGON I KLEINFFI DER, INC Page 3

Central Carolina Concrete — Winston Salem Plant March 26 2009
Supporting Document ofAOL ii"mston Salem North Carolina y __. Protect No 018 07-005
3 I Sediment Control Pond
Stormwater runoff from the portions of the site on which industrial activities take place discharges
through a drainage swale into an on -site detention pond The final outfall is located at the point where the
steel overflow pipe in the detention pond discharges into a rip -rap lined drainage ditch that flows away
from the facility
3 2 Process Water Control System
The process water control system is designed to primarily capture and recycle process water back to the batch
making process in the event that the system capacity is overwhelmed and complete capture and recycle is not
possible, the system then provides for treatment of the water prior to release
The existing process water control system consists of the following
• Curbed area for truck washdown/washout,
• Four (4) in -ground concrete sumps, 1/
• Portable recycle pump, /
• Carbon dioxide distribution system, and, ✓ /
• Detention pond controlling site wide discharges J
Each component of the system and its function is described in the following sections
3 2 1 Curbed Area for Truck Washdown/Washout
To ensure that process water is not discharged prior to entering the recycle/treatment system, a concrete curb
is being added to surround the truck wash dow�nararear(See Figure 3) truck wash -down area existing
grading slopes to the first water collection sump "Tlte curbing also functions to reduce the total drainage area
feeding to the recycle/treatment system which reduces the likelihood of exceeding the system recycling ✓
capacity
3 2 2 Four (4) In -ground Concrete Sumps
The rinse water from the truck wash area is directe by the existing grade and the curbing described above
into a succession of four in -ground concrete sumps The sumps collect the water and provide retention time
such that settleable solids and suspended solids will settle out of the water Water fills each sump in
succession and then passes through a weir located in the sump walls into the next sump for additional settling iX
TRIGON I KLEINFEI DF$ INC Page 4

Central Carolina Concrete — Winston Salem Plant March 16 2009
Supporlin Document ofN01. Winston Salem, North Carolina _ Protect No 018.07 005 /
Water from the final sump (or earlier sumps) can be recycled into the batch process via a portable water V
recycle pump Alternatively; —the water in the final sump can be treated for pH via the carbon dioxide
distribution system d released l_
3 2 3 Portable Recycle Pump
During normal system operation the treated process water in the final sump (or earlier sumps) is recycled to
the batch process by a portable submersible pump Based on typical batch production rates it has been
determined that the total water volume of last three (3) sumps can be utilized in the process within one (1) or
(2) business days
3 2 4 Carbon Dioxide Distribution System
In the event that the system capacity is overwhelmed and complete recycle of the process water is not
possible, the system will discharge water from the final s p Based on standard operating procedures this
would require precipitation exceeding a 10-year design storm Prior to allowing this discharge the water is
treated for settleable solids, suspended solids, and pH
Prior to reaching the final sump the water has been treated for settleable solids and suspended solids via the
sump and weir system Treatment for pH is provided by a carbon dioxide distribution system The carbon
dioxide distribution system is a Model 5000S pH Control and Monitoring system produced by,Fortrans The
system has been specifically designed and tested for concrete batch plant applications V
System specifications as provided by the manufacturer are presented in the following table
System Make
Fortrans
System Model
Model 5000S
Maximum Water Volume Treatment
100,000 gallons per day
Maximum Water Treatment Rate
57 gallons per minute
pH Discharge
75
Typical TSS Discharge Concentration
5-18 mg/l
As presented above the manufacturer the carbon dioxide system has documented effective TSS control based
entirely on the action of the carbon dioxide system, therefore, the expected actual TSS concentration in the
discharge is expected to be below this value due to the combined effect of the settling sumps and the carbon
dioxide system
MGOV IKLEINFELDFR, INC Page 5

Central Carolina Concrete — Winston Salem Plant March 26 2009
Supporting Document o
f NOI. Winston Salem North Carolina _ Project No 018 07 005
3 2 5 Detention Pond Controlling Site Wide Discharges
As previously described, runoff from the portion of the site on which industrial activities take place,
which would include any discharge from the process water control system, flows through a drainage
swale into an on -site detention pond prior to final discharge at Outfall 001 Although the detention pond
is designed and intended to control stormwater, it will also act as secondary treatment for solids that may
be present in the discharge from the process water system
4 0 Permit Compliance
The following systems have been put in place to meet the permit requirements
rP&mit Condition Number
a �'�
Permit Condition Requirement
System To'Achieve Compliance
Part Ll, Section A
Implement a SWPPP
A SWPPP has been developed and
implemented for the site The SWPPP
was last updated in September of 2007
Part II, Section 8
Analytical monitoring for
Not ap hcab no such stormwa
stormwater associated with
discharge exists
industrial activity not combined
with process wastewater
Part II, Section C I
Analytical monitoring for process
The-proc water recycle system
water associated with vehicle and
sho�'Minimize potential discharges
equipment cleaning
The following systems are in place to
provide treatment if a discharge occurs
pH 6-9
COz distribution system
(discharge pH 7 5 per manufacturer)
TSS <30 mgll
Primary control - Sumps and COz
distnbution system (discharge 5-18 mg/I
per manufacturer)
Secondary control — Detention pond
SS < 5 mVl
Primary control - Sumps
Secondary control — Detention pond
TRIGON IKLEINFELDFR INC
Page 6

Central Carolina Concrete — Winston Salern Plant Match 16 2009
Supporting Document ofNOl, Winston Salem, North Carolina Protect No_018 07 005
Part 11, Section C 2
Analytical monitoring for process
The process water recycle system
water associated with recycle
should minimize potential discharges
systems
fhe following systems are in place to
provide treatment if a discharge occurs
pH 6-9
CO2 distribution system
(discharge pH 7 5 per manufacturer)
TSS <30 mg/l
Sumps and CO2 distribution system
(discharge 5-18 mg/l per manufacturer)
SS < 5 mVl
Primary control - Sumps
Secondary control — Detention pond
Part 11, Section C 3
Analytical monitoring for process
Wetting of raw material stockpiles is
water associated with wetting of
limited and is not expected to generate a
raw material stockpiles
process water discharge I he following
systems are in place to provide
treatment should a discharge occur
pH 6-9
Not expected to be affected by raw
material aggregates
TSS <30 mg/l
Detention Pond
SS < 5 mVl
Detention pond
Part 11, Section C 4
Analytical monitoring for process
The process water recycle system
water associated with mixing
should minimize potential discharges
drum cleanout
The following systems are in place to i
provide treatient if a discharge occurs
pH 6-9
CO2 distribution system
(discharge pH 7 5 per manufacturer)
17SS <30 mg/1
Primary control - Sumps and CO2
distribution system (discharge 5-18 mg/l
per manufacturer)
Secondary control — Detention pond
SS < 5 ml/l
Primary control - Sumps
Secondary control — Detention pond
M
TWoN I KLEINFFLDER INC Page 7

SITE
-j
1� L
7
v
U�
1) 0 0.2 0.4 0.6 0.8 1 mi
Map Center is 36" 03' 19"N, 80' IT3 1 "W (NAD27)
Easton View. USGS Winston-Salem East (NC) Ql-ladi-angle
Projection is UTM Zone 17 NAD83 DItLI111
Site Location Map
centrat Cal-olino Concrete - Winston-Salem. North Carolillil
JOB N(i: 018-07-005
DATE: September 2007
ITRIGC3 DRAWN BY: P.M I I
NGINEFnING CON611. rANTS. M. Scalc: As Noted h2LII-C I

. .................. . -
.. . . ........ . ..
.... . ..... .
ccww�
N�m
WALL
EMS
TM
SITE NrORP,.!,A T
GRAPHIC SCALE

P C -. j " N
"F-J I ..... ..I IIij
SYSTEM
I
REMOVABLE "
SUBMERSIBLE
PUMP LOCATION
F- V N I (--" ED E- T E-
CONCRETE
RETAINING
/ALL (TYP)
TALL
JCK \
SITE INI ow,lAT i.)r.J
GRAPHIC SCALE
'rF%131K3r%A
PROCESS WATER
DETAIL
CENTRAL
CAROLINA
CONCRETE
-$
5y YK
3.0

ATTACHMENTS

CENTRAL CAROLINA CONCRETE WINSTON-SALEM
314109
RAINFALL
24hrl10yr Storm = 4.87 inches
Area collecting runoff 6928 ft
Volume of runoff 2755 ft
BASINS
Wier
Basin DimensionsF15.
mp Dimensions
Containment
Capacitystandingwater
Volume of
Volume of
freeboard
Available
Containment
Cumulative
Containment
Discharge
X
Y
Z
Y
Z
Yes/No
Volume
(ft)
(ft)
(ft)
;ft)
(ft)
(ft')
(ft')
(ft')
(ft`}
{it')
(fC)
4
12.5
4.00
12.5
4.00
594
544
49
0
2287
Yes
469
4
12.75
4.00
12.75
4,00
606
0
50
555
4
17.75
4.00
17.75
4.00
843
0
70
773
0
0
0.00
17 75
4001
10651
01
1071
9591
CALCULATION NOTES
Volume of runoff = Area * Rainfall (ft) * Dicharge coifficaint (0.98 in this instance)
Containment Capacity = (X * Y "Z ) + 0.5(R * Y ' Z)
Volume of Standing water accounts for first basin being ful• to the wier prior to storm event
Volume of Freeboard =0.2 foot of freeborad in each basin = (X ' Y " 2) + (R ` Y - .2)
Exerpts from Permit No. NCG140000
SECTION C: ANALYTICAL MONITORING REQUIREMENTS - PROCESS WASTEWATER
This general permit authorizes the discharge of process wastewater associated with four distinct activities 1 j 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 permit. 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 it that recycle
system discharges only as a result of a 10 year - 24 hour precipitation event.
SECTION C.2. Process Wastewater Associated with Recycle Systems
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 the overflow of 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.

TRIGON KLEINFELDER, INC.
Subject: WaterQuanfifyAnalysis �,F.��°°°" {gate: 10/13/2008
Set Up By: LJV e
Work: Wet Detention Pond Sizing for 85/0 TSS Removal � Computed By: LJV
-._ Checked By: JO ..
n- x,
Project: Concrele Supply .JOB N10. 018-07-005 Page No. 1 OF 5
inage Area: 3.85 AC.
lirainca_(,Area Breakdown:
Impervious Area:
Buildings/Equipment
1662
SF -OR-
0,18
AC.
Concrele Purls
4852
SF -C)R-
0.11
AC.
Aggregate Pile
7,758
SF -OR-
0.1 B
AC.
Gravel Area
1241,716
S_ -OR--
2.863
AC -
Total
144,988
S= -OR-
3.33
AC.
Impervious F. of Total -
8&5
to
Assume Permanent Pool Aw roge Depi.h = 3.0 f=.
For 85%TSS Removal (Interpol cited)-.*
SA/DA = 3.61 0
See iloched Tc e for 85 o TSS Removal
SA = SA/DA " DA " 43560 Sf/A(= \i
Actual SA Cc) 897' lNo,mal Pour`) i 0.443
Actual Permanent Pool Avercige Del);h 3.16
For 857.TSS Removal
SA/DA 3.51 la
Requ'ri. d SA - .,,i38v Si
5F
OK
6054 SF

,,L { l of 3
POINT PRECIPITATION
(i) FREQUENCY ESTIMATES
FROM NOAA ATLAS 14
GRF ENSBORO PIMP STN, NORTH ('AROLINA (31-3625) 36.0833 N 79.8 W 793 feet
fmn, pmrip!atkm-prequcncy Art,, ,1 dtc 1'wwd Staley" Nf1AA A' 1- 14. Volume 2. Vrtsinn 3
G.M. 1111n0in. D Martin, R 1.111. -1'. ?;-0 k. l7-Y,kla. and 1) R9cy
NOAA. N1 irrn;rl WG Alta Srrcicc, Siivet Sprrnq, !.7aty €uatd, 21 tl:W
1� stj.,tcd: 'k,,i Mnr 4 2(KN7
Confidence Limits seasonality I Location Maps I Oihar info. I GIs data Maps Does Return to State
Precipitation Frequency Estimates (inches)
3U 6U 1_(1 L lU _
a Itl 5 1 fl 15 f U �o a i fdl
* ❑ 3 I)r I f� hr _ ❑ 18 hr 3 dati 7 da}
years) ruin min n,tn rmn mm rnfn L hr hr day day da dny c� tv
0_i U.61 0.7G I.€14 I.3U 1.53 C64 1.99 2.3(i 2.79 3?5 3.G4 4.17 4.71 6.34 7.85 9.$9 I1.87
(1.4$ U.7Z (1.91 1.26 1 18 l.Rfi 1.99 2.4i 2.81i 3.33 i.91 4."i7 4.98 5.61 7,49 9 23 ] 1.58 I3.84
0.53 1).85 1.07 1.52 FE 232 2E 3.fH) I 3.57 4.21 4.84 EEI 6.04 ETIF 10.72 13.28 15.G3
1U (1.SH LI-y2 1.17 1.6I 2.21 2b5 2.84 }.45 4.14 $.87 5.55 6.15 li,88 7.63 9.97 11.88 14.6U 17.01
4o
20a ELJ 1.14 ILL43JL2 _s5 17.92 8.76 9711_II
500 0.74 1.17 1.47 E.34 3,?fi F..i4 4 Cr9 (,.(}6 7.7$ B.yS 9-8U I0.98
100U 0.75 1 8
' These pleC�p100,r hegAxy eslimales are based o:^. a pat1,i,$I,.jwpol: Sd-'!es ARI cv lfie Average nec,,once
please toter la h'O,,A. AgA_1.a p,:_n�n3 for more inloalton. NOTE Frxma[k-g Inrnea eea b4mztas nr :era to aCVea+ as zeta
* Upper bound of the �i0% confidence interval
Precipitation Frequency Estimates (inches)
all* -IF30 6€► 1zo 3 6 i2 za as a [Z] l0 �0 30 a, bcl
{years)[4jF,-6-1F-15
rnin min min min min I,r fir fir fir fir day day day day day day
�0.4[ U.f,6 0.83 1.13 1.41 1.67 1.79 2.18 ?.58 3.(12 3-511 3.41 4.47 S.U4 6.77 828 10.45 12.46
�0.49 0.79 U.49 1.37 1.72 2.U3 2.17 2.63 3.13 3.fi5 4.2] 4.69 5.33 6.UO B.OU 9.72 12.23 L4.Sa
I I0.57 0.92 1.1G 1.65 2.1? 2,53 2.7U 3.27 3.911 4.5a 5.2(1 5.76 6.46 7.2U 9.a6 ]1.19 14.('12 16.42
1U {).fi3 LO0 1.27 1.84 2.39 2.fiH
3.(18
3.56
3.75 4.5] 5.25 5.96 .
G61
4.39 5.33] fi.21 fi.98 7.75
7.B.IS
3G
IQG3 12.51
15.41 17-85
25 {).b8 1.09 1.38 2.0S 2.73 3.33
8.>9 9.44
I2?4 t4.14
17.2fi 1971.
�U (1.72 [.l5 1.45 2.19 2.97 3.fi6
3,yZ
4.H8 5.49 fi.97 7.79 8.65
9.5H ]U.bB
13.53 ]5.40
18.68 21.12
IUlI (1.7] [.ZU I.51 2.31 3.19 3.)9
a 2H
5.37 (r.67 7.7G 8.(il 9.58
]0.58 11.53
14.84 1G.Gfi
20.10 22.48
2UU U.78 1.23 1.56 ?.42 3,4() 4.311
4,fr2
.5,H7 7.37 8.-5y t}.4fi 1U.55
lI.G2 ]2.62
16.19 17.95
21.52 23.R0
5U{I 0.8U 1.27 t.6f) 2.54 3.65 4.7C)
5.116
(r,54 8. 17 <1.71 10.fi1 ] 1.H7
13,U5 14.1 1
l8.(I i 14.67
23.39 25.5U
1!}oU U.82 1.29 1.61 2.61 3.8`2 4.99
5.39
7,I1fi �3,18 IU.G2 ll.$2 12,92
14,20 15.29
19.48 ZI).9$
24.82 2fi_78
E Ile upper oouno or too conuaonce miewar at su , cur,[roence ievei is Eno vawe wmcn rro oE,rre srmmatea quanme vawes for a given Frequency are gma,ee Inan.
" Theso precipitalron IrequenCy eslimales are based on a pkijta1 duration SP.nP , ARI i811w Average Recurrence Inlerval.
please refar to NOAA Aeas 14 Lacumenl for more rnformal_on. NOTES Formatting prevenls 0,0nrale5 near zero In appear as zero.
* bower bound of the 907c confidence interval
Precipitation Frequency Estimates (inches)
ARI** IU 15 3U 60 12U Ftflr
� 12 2a a8 a❑ W
{years) mm mm mm nnn min mm fir fir fir hr d"da
0.35 0.56 0.7U 0.9Fi 1.2C1 1.41 1.51 1,84. 2 18 2.59 3.03 3.39 l ].32
F-27 4 U.67 O94 I.1G l.•1G 1.71 I:84 2?3 2,fi3 3.13 3.f4 4,U7 4��� 13,21
�U.49 0.78 0.98 ].40 1.79 2.13 ?.?<) 2.7ti 3,28 3.y{) 4.511 5UU 5.fi3 6.2y H.31 ]0.15 12.58 44.91
to CI.53 0.85 1.07 1.55 2.02 2.42 2.f(1 3.t6 3.79 4,44 514 5.72 {_41 7.10 4,3+ ll.'_3 13.81 to-19
25 0.5R U.92 1.17 1.73 2.3i) 2.79 3,(X):4.68 4.16 5.29 fi,(x) 6.63 7.44 8.2(} 1(}.68 L2.GS 15.d1 17.93
SU U.H) 0.96 1.22 1.84 2.49 :3.(X, r.3(1 4.67 4.ys 5.9'_ 6.67 7.43 8.2(i 9.05 I1.7fi 13.72 1664
- 19.05
I-00 U.b3 I.(� 1.2E 1.93 2.56 3.31 357 4.45 S.S{) 6 56 7.33 8.1y 9.07 9.41 12.h3 14.76 17.80 20.2U
20U 0.65 1.02 1.29 2.(11 2-F2 '.3.54 3.83 4.H2 6.03 7.21 8.(M) H.9G 9.90 10.77 I3.89 15,8( 18.96 21.31
5{)fl 0.66 1.l}4 1.31 2,U9 3.0U 3.Ei3 4.14 5. 9 sfi.7l 8.U9 H.4(1 9,98 11,01 ll.y2 15.32 17,15 2U4F 22.7U
111C)U 0.67 1,05 1-32 2.I3 3.11 4.U3 4,,6 5.63 l7.2'_ 8.77 9.59 1U.76 11.87 12,8(1 1G.41 18,1$ 21.5<} 23.72
7
203Ua,day day
Zday
day
day
3.4U
4.41
5.96
7.45
9.3H
4.f,4
5.24
7.U3
8.75
10.97
na 10WW bound Of Ilre =409rrce in E.erat at WJ' comiaence level %i ne va€ue wren ,,w 01 ine smwFale7 auanive vaises tot a green IreQuency e'e less filar.
January 2009

4.� L. l Of 3
Fortrans. pH Control Systems and Fbnra1 s-
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Fortrans Inc. announces a new self-
. • • • • • • I • • .. • ... • • •
contained pH control and monitoring
About Fortrans
system designed specifically for the
neutralization of high pH process water
Contact Us
produced at ready mixed concrete
Biodegradable Info
plants.
Safety
The Model 5000S pH Control and
Home Page
Monitoring System offers precise
monitoring and pH control of process
water in settling basins, lagoons and
other outfall containment devices.
Toll Free:
877-387-8509
Office:
919-365-8004
Mobile:
919-624-8832
Durham, North Carolina This system has been certified by an independent engineering firm to perform as
specified. The units are shipped fully assembled and only require an electrical connection
and a supply of carbon dioxide gas. The system will treat approximately 100,000 gallons
per day. The system is also available as a skid mounted unit. (Model 5000SK) These
systems are highly reliable and affordable to purchase and operate.
The Model 5000E pH Control and Monitoring System enables operators of ready mixed
concrete plants to effectively control the pH and Total Suspended Solids of both process
water and/or stormwater run-off. After the pH is lowered to 7.5 the typical total suspended
solids are between 5-18 mg/L without filtration. This enables the facility to meet the pH
requirements as well as the 30 mg/L TSS most permits demand before the water can be
released. The treated water may be used to batch concrete, to irrigate rock, to rinse the
interiors of the drums on the concrete trucks and rinse the exteriors of the trucks as well.
Our systems offer precise monitoring and control of the pH in
pit systems, settling basins, lagoons and other containment
areas.
We are currently using 9 of the Model 5000 pH Control Systems supplied by
Fortrans at our ready mixed concrete plants and are very pleased with them. in fact,
they are not only helping us to control the pH in our pi systems but also help us
deal with the solids build-up as well- They are reliable and virtually maintenance
free and one of the best method that I have found in dealing with high pH process
water which is on of the most critical and increasingly regulated issues in our
industry. We currently operate 30 plants and I intend to purchase several more
Model 5000 systems."
Jeff Lamm, Environmental Manager Southern Concrete Materials Asheville, NC
e The pH CONTROL SYSTEMS will treat up
January 2009

2of3
to 57 gallons per minute - max 20' head
pressure. Unique water circulation design
eliminates the need for separate
neutralization tank.
1.5" quick connect fittings on inlet and
return for easy hook-up. The standard unit
is equipped with 2-20' sections of 1.5"
flexible hose with quick connect fittings.
Inlet and outlet fittings at the basin or
lagoon are per our specifications.
Unit is shipped completely assembled.
The chemical controller is preprogrammed
to maintain a pH of 7.5. Just attach hoses
and PVC fittings.
1 year warranty on all component parts
and housing.
The pH CONTROL_ SYSTEMS are designed to treat and maintain a specified pH level in a
body of water usually 100,000 gallons or less to allow the permitted discharge of treated
water to the environment. Permits must be obtained from the local governing agency to
allow any discharge to the environment. Treated water may be used for wetting of rock
and/or dust control to aid compliance with storm water run off regulations and may be
used in water recycling systems
pH Control System - Skid Mounted
January 2009

F� � �

t * !
Division of Water Quality / Surface Water Protection
NCDENRNational Pollutant Discharge Elimination System
V-a H CAO*L DLWftfY!]�ZL�.�. OF
FN'/R mx%T "n Ni gLrw ;tF ry orF
NCG140000
NOTICE OF INTENT
FOR AGENCY USE ONLY
Bate Received
Year I Month m
Certificate of Coverage.
Check # Amount
Permit Assigned to
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 NOI 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 ex►st►np plant sites discharging or recycling process wastewater (even if commingled with
stormwater) This NO] 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 fatalities used to treat or rec cle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC pnor to construction
per 15A NCAC 211 0138 The 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 treatment 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 staffz along with this application A copy of the design
calculations should be included Please see questions 14 & 15
WKI-'ar I For questions, please contact the DWQ Regional Office for your area (See page 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be mailed)
Name
Street Address
City
Telephone No
iL 5Lt00f l f-Ornoe"ALA
3923 S--Pee:
70�z 3772- Zg3Q
2) Location of facility producing discharge
State �X ZIP Code Z8206
Fax Tq 334!- 9650
Facility Name CeA-T-1 Ccgoi,'ri=- C-vnc�,L4-e— - t 2,As40n - S- -e-M PItvi_+
Facility Contact Alesconae-v -
Street Address I q-T A(2.1Gke- fit•,'v, _
City iJ,'n-Aon-half'. State —i/CZIPCode 2-7lo7-
County For snt
Telephone No 70q 3724 2-530 Fax 70-1 _ 334-1- 96C`0
Page 1 of 5
'As per 15A NCAC 2H 0106
2Unless 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 7/14/08

t
NCG140000 N O 1
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) Fror^ T1nQM<s v,11-e- hoc t 6x, a I -40 T ruwcl 0 3
M IC 5akt6tel,-, o 4 QqCkC 0tr ,/ _ —1 Uf n -Ft 00 A PCtE-L4,.P_'Dr-r/.it_ 0.4 t-mile/ SO
(A copy of a county map or USGS quad sheet w1h facility clearly located on the map is a required part of this application )
4) Latitude .gib Ua 11't rJ Longitude 90 12 ` 51" a (deg, min, sec)
5) This NPDES Permit Application applies to which of the following
❑ New or Proposed Facility Date operation is to begin
(9 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 Z 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 )
8) Discharge points / Receiving waters
How many discharge points (ditches, pipes, channels, etc) convey stormwater and/or wastewater from the
property? Ofi-e_ s,rti�i
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? F dA I�i _s Ccy�e.K
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)
Note Discharge of process wastewater to receiving waters classified as WS-11 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?
119 No
❑ Yes
If yes, fist the permit numbers for all current NPDES permits for this facility
10) Does this facility have any Non -Discharge permits (ex recycle permits)9
® 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'P
❑ No
CK Yes
If yes, please briefly describe j?c r css �,jm4 J`
r"JCQ1 S0±
Page 2of5
SWU 229 071408 Last revised 7/14/2008

NCG140000 N Q 1
12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
A Yes
If yes, when was it implemented?
ZCO:7
13) Are vehicle maintenance activities occurring or planned at this facility)
(9 No
❑ 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 ® No
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
I For a sufficient application, you must provide design specifics (e g , design volume, retention time, surface
I area, etc ) and calculations to demonstrate compliance with permit effluent limits (pH — 6 9 SU, Total
Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 mill) [Use separate sheet(s)]
If all these discharges are recycled, please refer to Question 15
For plants that recycle and/or 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 NOl 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, etc
Please note If new treatment systems are planned for an ex►stinq 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 DWO 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
Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
,� 10 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)]
otFor a sufficient application, the information must demonstrate compliance of final discharge with permit
—1 effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mgll, and Settleable Solids (SS) — 5 mill), or
must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24 hr
rainfall event plus one toot of freeboard under design operating conditions
Page 3 of 5
SWU 229 071403 Last revised 7/14/2008

NCG140000 N O 1
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
0 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?
A No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg of hazardous waste generated per month) of
hazardous waste?
X No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg or more of hazardous waste generated per month) of
hazardous waste?
N No
❑ Yes
d) If you answered yes to questions b or c , please provide the following information
Type(s) of waste A
How is material stored
Where is material stored
How many disposal shipments per year
Name of transport f 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 matenat fact in a rulemaking proceeding or contested case under this Article or who falsifies 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 shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10 000)
I hereby request coverage under the referenced General Permit I 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 true, complete,
and accurate
Printed Name of Person Signing
Title E ljo
%4turd of Applicant)
3 Zv M
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $100 00 made payable to
NCDENR
Page 4of5
SWU 229 071408 Last revised 7/1412008

NCG140000 N 0 1
Final Checklist
This application will be returned as incomplete unless all of the following items have been included
Check for $100 made payable to NCDENR
This completed application and all supporting documentation (including design details and calculations for
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
1 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)
G( For existing sites three (3) copies of plans and specifications for wastewater treatment facilities (including
I recycle systems) as built, stamped and sealed by a Professional Engineer, or(only if plans not available a
detailed diagram of treatments stems in place that includes information such as tank volumes, dimensions,
retention time piping, settlinq 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 DWO Regional Office for your area
DWQ Regional Office Contact Information
Asheville Office
[phone]
Fayetteville Office
[phone]
Mooresville Office
[phone]
Raleigh Office
[phone]
Washington Office
[phone]
Wilmington Office
[phone]
Winston-Salem
[phone]
Central Office
[phone]
Page 5 of 5
5WU 229 071408 Last revised 7/14/2008

SUPPORTING DOCUMENTS FOR
NOTICE OF INTENT
GENERAL PERMIT NCG140000
CENTRAL CAROLINA CONCRETE
WINSTON-SALEM PLANT
Prepared for
Central Carolina Concrete
Charlotte, North Carolina
Prepared by
TrfgonIKlelnfelder, Inc
6200 Harris Technology Blvd
Charlotte, North Carolina 28269
Michael A Sussman, P>
Signature ';A�
Date
Klemfelder Project No 018-07-005
March 26, 2009
`\I1j1N 4l I t If I q ,It��'
CAAo(�
0Fessroti
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9275 ;
IoZf ' • .. .....
S �

y
TABLE OF CONTENTS
10 Facility Data
1 1 Facility Description
2 0 Drainage Characteristics
2
2
3
3 0 Water Quality Control Structures 3
31 Sediment Control Pond 4
32 Process Water Control System 4
3 2 1 Curbed Area for Truck Washdown/Washout 4
322 Four (4) In -ground Concrete Sumps 4
323 Portable Recycle Pump 5
3 2 4 Carbon Dioxide Distribution System 5
325 Detention Pond Controlling Site Wide Discharges 6
4 0 Permit Compliance
FIGURES
Figure 1 Site Location
Figure 2 Site Layout and Drainage Map
Figure 3 Process Water Detail
ATTACHMENTS
Site Photos
Carbon Dioxide Distribution System Data
Calculations
6

Central Carolina Concrete — Winston Salem Plant March 26 2009
Sunnort+ng Document ofN01, Winston Salem, North Carolina ProIect No 018 07 005
10 Facility Data
Project
Project Location
River Basin
Sub -basin
Receiving Waters
Current Classification
Total Project Drainage Area
Major Drainage Areas
Soils
Concrete Supply Co
195 Apac Street, Winston-Salem, NC
Yadin-Pee Dee
Lower Yadkin
Unnamed Tributary to Fiddlers Creek
C
9 15 Acres
2 (one industrial and one non -industrial)
CeB (Cecil Sandy Loam), PaB (Pacolet Fine Sandy Loam), PaF (Pacolet
Fine Sandy Loam), PcC2 (Pacolet Clay Loam)
Site Figures (included as attachments to this plan) are detailed below
• Figure 1 Site Location Map —a topographic map with the approximate location of
property boundaries at the site
• Figure 2 Site Layout and Drainage Map - a site map which details building locations,
stormwater conveyance structures, stormwater outfall, surface flow directions, and
industrial process areas of the facility
• Figure 3 Process Water Detail — a detail from Figure 2 showing the process water
management system
1 1 Facility Description
Central Carolina Concrete's Winston-Salem plant is a ready mix concrete batching plant located at 195
Apache Dave in Winston-Salem, Forsyth County, North Carolina The entire area of the property is
approximately 9 15 acres of which the majority is developed industrial activities exposed to stormwater
include the concrete batch plant, truck parking, truck load -out, truck wash -down, aggregate storage piles,
aggregate hoppers, aggregate conveyors, admixture tanks, material storage, vehicle parking, diesel fuel
storage and dispensmg, and wash -water recycling system The facility includes two primary water quality
control features, a sediment control pond and a process water capture and recycle/treatment system
TRIGON I Kl FINFFI DER INC
Page 2

Central Carolina Concrete — Wrnston Salem Plant March 26 2009
Supporting Document o NOI Wm ton Salem North Carolina Protect No 018 07-005
2 0 Drainage Characteristics
A Site Location Map for the facility, Figure 1, shows the site proximity to the drainage ditches and the
ultimate receiving water for stonnwater and process wastewater The site is divided into two separate
drainage areas (as detailed in Figure 2) Drainage Area 1 consists of the process areas of the site and
Drainage Area 2 consists of wooded land
Stormwater runoff from the portions of the site on which industrial activities take place, as detailed in
['figure 2, discharges through a drainage swale into an on -site detention pond The detention pond
discharges into an overflow pipe at Outfall 001
Outfall 001 is located at the point where the steel overflow pipe in the detention pond discharges into a
rip -rap lined drainage ditch that flows away from the facility The rip -rap lined drainage ditch channels
flow south then east approximately 300 yards where it discharges into an unnamed tributary to Fiddlers
Creek
Stormwater drainage in Drainage Area I is channeled by site grading and a drainage swale that flows
from the south side of the aggregate storage bins south and east into the detention pond on the southeast
portion of the property The detention pond would discharge in the event of an overflow and the discharge
would flow through an overflow pipe where it would discharge northeast of the wet detention pond into a
rip -rap lined ditch at Outfall 001
Stormwater drainage in Drainage Area 2 flows as sheet flow to the wooded area east of the process area
where it eventually is collected in the ditch that flows from Outfall 001
Stormwater leaving the site eventually flows east and south to an unnamed tributary to Fiddlers Creek,
approximately 300 yards southeast of the site
3 0 Water Quality Control Structures
The facility includes two primary water quality control features, a sediment control pond and a process water
control system These systems are presented on the original site development plan (developed by Chas H
Sells, Inc in August of 2004) which has been used as the basis for the attached Figures 2 and 3
TwGON jK1 EINFPLDER INC Page 3

Central Carolina Concrete — Winston Salem Plant March 26 2009
Supporting Document ofN01, Winston Salem, North Carolina Project No 018 07 005
3 1 Sediment Control Pond
Stormwater runoff from the portions of the site on which industrial activities take place discharges
through a drainage swale into an on -site detention pond The final outfall is located at the point where the
steel overflow pipe in the detention pond discharges into a rip -rap lined drainage ditch that flows away
from the facility
3 2 Process Water Control System
The process water control system is designed to primarily capture and recycle process water back to the batch
making process In the event that the system capacity is overwhelmed and complete capture and recycle is not
possible, the system then provides for treatment of the water prior to release
The existing process water control system consists of the following
• Curbed area for truck washdown/washout,
• Four (4) in -ground concrete sumps,
• Portable recycle pump,
• Carbon dioxide distribution system, and,
• Detention pond controlling site wide discharges
Each component of the system and its function is described in the following sections
3 2 1 Curbed Area for Truck Washdown/Washout
To ensure that process water is not discharged prior to entering the recycle/treatment system, a concrete curb
is being added to surround the truck wash down area (See Figure 3) The truck wash -down area existing
grading slopes to the first water collection sump The curbmg also functions to reduce the total drainage area
feeding to the recycle/treatment system which reduces the likelihood of exceeding the system recycling
capacity
3 2 2 Four (4) In -ground Concrete Sumps
I he rinse water from the truck wash area is directed by the existing grade and the curbing described above
into a succession of four in -ground concrete sumps The sumps collect the water and provide retention time
such that settleable solids and suspended solids will settle out of the water Water fills each sump in
succession and then passes through a weir located in the sump walls into the next sump for additional settling
DuGON jKLEivFELDFR, INC Page 4

Central Carolina Concrete — Winston Salem Plant March 26 2009
Supporting Document of A'01, Winston Salem, North Carolina Protect No 018 07 005
Water from the final sump (or earlier sumps) can be recycled into the batch process via a portable water
recycle pump Alternatively, the water in the final sump can be treated for pH via the carbon dioxide
distribution system and released
3 2 3 Portable Recycle Pump
During normal system operation the treated process water in the final sump (or earlier sumps) is recycled to
the batch process by a portable submersible pump Based on typical batch production rates it has been
determined that the total water volume of last three (3) sumps can be utilized in the process withm one (1) or
(2) business days
3 2 4 Carbon Dioxide Distribution System
In the event that the system capacity is overwhelmed and complete recycle of the process water is not
possible, the system will discharge water from the final sump Based on standard operating procedures this
would require precipitation exceeding a 10-year design storm Prior to allowing this discharge the water is
treated for settleable solids, suspended solids, and pH
Prior to reaching the final sump the water has been treated for settleable solids and suspended solids via the
sump and weir system Treatment for pH is provided by a carbon dioxide distribution system The carbon
dioxide distribution system is a Model 5000S pH Control and Monitoring system produced by Fortrans The
system has been specifically designed and tested for concrete batch plant applications
System specifications as provided by the manufacturer are presented in the following table
System Make
Fortrans
System Model
Model 5000S
Maximum Water Volume Treatment
100,000 gallons per day
Maximum Water Treatment Rate
57 gallons per minute
pH Discharge
75
Typical TSS Discharge Concentration
5-18 mg/1
As presented above the manufacturer the carbon dioxide system has documented effective TSS control based
entirely on the action of the carbon dioxide system, therefore, the expected actual TSS concentration in the
discharge is expected to be below this value due to the combined effect of the settling sumps and the carbon
dioxide system
TRIGON JKLEINFELDER INC
Page 5

Central Carolina Concrete — Winston Salem Plant March 26 2009
Supporting Document o NDI Winston Salem North Carolina Protect No 018 07 005
3 2 5 Detention Pond Controlling Site Wide Discharges
As previously described, runoff from the portion of the site on which industrial activities take place,
which would include any discharge from the process water control system, flows through a drainage
swale into an on -site detention pond prior to Final discharge at Outfall 001 Although the detention pond
is designed and intended to control stormwater, it will also act as secondary treatment for solids that may
be present in the discharge from the process water system
4 0 Permit Compliance
The following systems have been put in place to meet the permit requirements
Peirnrt Condition Number
1
Permit Condition R4 q4u ement
SystemiTo Achieve Compliance i
7i
Part E, Section A
Implement a SWPPP
A SWPPP has been developed and
implemented for the site The SWPPP
was last updated in September of 2007
Part 1I, Section B
Analytical monitoring for
Not applicable as no such stormwater
stormwater associated with
discharge exists
industrial activity not combined
with process wastewater
Part E, Section C I
Analytical monitonng for process
The process water recycle system
water associated with vehicle and
should minimize potential discharges
equipment cleaning
The following systems are in place to
provide treatment if a discharge occurs
pH 6-9
CO2 distribution system
(discharge pH 7 5 per manufacturer)
TSS <30 mg/l
Primary control - Sumps and CO2
distribution system (discharge 5-18 mgll
per manufacturer)
Secondary control — Detention pond
SS < 5 ml/l
Primary control - Sumps
Secondary control — Detention pond
TRIGON,KI.EINFEIDER INC
Page 6

Central Carolina Concrete — Winston Salem Plant
March 26 2009
SupporlrnF Document ofNOI Winston Salem North Carolina Protect No 018 07 005
Part Il, Section C 2
Analytical monitoring for process
The process water recycle system
water associated with recycle
should minimize potential discharges
systems
The following systems are in place to
provide treatment if a discharge occurs
pH 6-9
CO2 distribution system
(discharge pH 7 5 per manufacturer)
TSS <30 mg/l
Sumps and CO2 distribution system
(discharge 5-18 mg/l per manufacturer)
SS < 5 ml/1
Primary control - Sumps
Secondary control -- Detention pond
Part]], Section C 3
Analytical monitoring for process
Wetting of raw material stockpiles is
water associated with wetting of
limited and is not expected to generate a
raw material stockpiles
process water discharge The following
systems are in place to provide
treatment should a discharge occur
pH 6-9
Not expected to be affected by raw
material aggregates
TSS <30 mg/l
Detention Pond
SS < 5 mVl
Detention pond
Part II, Section C 4
Analytical monitoring for process
The process water recycle system
water associated with mixing
should minimize potential discharges
drum cleanout
The following systems are in place to
provide treatment if a discharge occurs
pH 6-9
CO2 distribution system
(discharge pH 7 5 per manufacturer)
rSS <30 mg/l
Primary control - Sumps and CO2
distribution system (discharge 5-18 mg/l
per manufacturer)
Secondary control -- Detention pond
SS < 5 ml/l
Primary control - Sumps
Secondary control — Detention pond
TRIGON I KLUNFELDER INC Page 7

7AIZ
TRIGON
0 0.2 0.4 0.6 0.8 1mi
Map Center is 36" 03' 19"N, 80' 12' 31 "W (NAD27)
Easton View, USGS Winston-Salem East (NC) Quadrangle
Projection is UTM Zane 17 NAD83 Datum
Site Location Map
Central Carolina Concrete - Winston-Salem, Norlh Carolinfi
JOt3 No: 018-07-005
DAIT: September 2007
DRAWN BY: PMtl
Scale: As Noted } i-I'un I

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F- V l--) N ; ,--\ ID F- ' T 1--
C IL\ H
E) 10 x
SYSTEM
REMOVABLE
SUBMERSIBLE
PUMP LOCATION
CONCRETE
RETAINING
fiALL (TYP)
TALL
JCK 1
GRAPHIC SCALE
FORMATION
41!
V!OFMI I F=Ml M3 V"41
PROCESS WATER
DETAIL
CENTRAL
CAROLINA
CONCRETE
3.0

ATTACHMENTS

CENTRAL CAROLINA CONCRETE WINSTON-SALEM
314109
RAINFALL
24hr110yr Storm = 4,87 inches
Area collecting runoff 6928 ft`
Volume of runoff 2755 ft'
BASINS
bNiar
F ree4o<>.:�cf Z
Y
R X
Basin Dimensions
Ramp Dimensions
Containment
Capacity
Volume of
standino water
Volume of
freeboard
Available
Containment
Cumulative
Containment
Dischar e
X
Y
Z
R
Y
Z
Yes/No
Volume
(ft)
(ft)
(ft)
A
(ft)
(ft)
(ft)
(ft)
(ft
(ft')
{ft )
4
12 5
400
15.75
12.5
4.00
594
544
49
0
2287
Yes
469
4
12.75
4.00
15.75
12.75
4.00
606
0
50
555
4
17.75
400
15.75
17.75
4.00
843
0
70
773
0
0
0.00
30
17,751
4,001
10651
01
1071
9591
CALCULATION NOTES
Volume of runoff = Area ' Rainfall (ft) ' Dicharge coifficaint (0.98 in this instance)
Containment Capacity = (X ` Y 'Z ) + 0.5(R ' Y " Z)
Volume of Standing water accounts for first basin being full to the wier prior to storm event
Volume of Freeboard =0.2 foot of freeborad in each basin = (X ' Y '.2) + (R ' Y ' .2)
Exerpts from Permit No. NCG140000
SECTION C: ANALYTICAL MONITORING REQUIREMENTS - PROCESS WASTEWATER
This general permit 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 permit. 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.
SECTION C.2. Process Wastewater Associated with Recycle Systems
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 the overflow of 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 thls permit.

d
TRIGON I KLEINFEIDER, INC.
Subject: Wafer Quontity Analysis Date: 10/13/2008
Set Up By: L.JV
Work: We+ Defenlion Pond Sizings for 85%TSS Removal Computed By: LJV
Checked By: J0
Project: Concrete Supply JOB NO. 018-07-005 Page No. I OF 5
Drainage Area: 3.85 AC,
prainoq e. /,rea.. B ec kdown:
!nioervious Area:
Buildings/Equipment
Concrete Fads
Aggregate file
Gravel Area
Total
Impervicus % of Total
7662
SF -OR-
0.18
A:.::.
4852
SF -OR-
0.1I
A(
7,758
SF -OR-
0.18
AC..
124,71 6
5F -OR-
2.863
AC.
144,?88
SF -Olt,-
3.33
AC:.
86.5 %
Assume Permanent pool Average Depth mm 3,0 ft.
For 85! TSS Removal (Interpolated):'
:SA/DA = 3.6171.
" See Att(�chec: Table for 85 o TSS Removal
5A = SA/DA * DA' 43560 SF/ AC mm
Actuol SA (A 897' (NDrrnal POO') 10A43 SF
Acival Permanent Fool Average Depth = 3.16
For 857. TSS Removal
SAIDA W 3.51 %
Rea,uTred SA = 5,886 SF
dK
6054 SL

I of 3
(i
- POINT PRECIPITATION'
FREQUENCY ESTIMATES
FROM NOAA ATLAS 14 '•.,, r
GRUNISItOR0 PUMP STN, NORTH CAROLTNA (31-3625) 36.0833N 79.8 W 793 feet
f?,rn "I',cEihi� n-Pr�-�,rte Arbw of din l;nitmi �rarec' NOAA Ail. 14. Vrr3untc 2. Ycrsi,�n 3
U�%1 lionnin. €1, Martin. It, Lin, T Paraybonk M.Yekra, and D H'deg
NOAA, NarirH,al Wrathrr $en'icc, SA-r Spnng. 14-yian1. 2f1(Il
F.xtrac[rd. Wrd Mar 4 -'(8))
Confidence Limits Seasonality Location Maps Other Info. I G]S data Maps Docs Return to State Map
Precipitation Frequency Estimates (inches)
5 1(] 15 30 6O I .i ( J 4 �jjjj 10 0 l(1 '5 r (tll
ARI*� 3 hr I61)r� 48 hrll4 r1a17 der ����I y�
Years) nun min mrn Hilo min mrn hr hr dav dav_ d tv dav da
1.53 1 (i4 1.99 2.36.79 3 25 3.(4 4.17 4.71 6.34 7.x5 9.89 11.87
2 1 0.45� ).72 r},9l 1.26 �1 58 Ir.Bfi 1 1.99 2.41 ?.861C3.3H 1 3 91 1 4.i f 14.9x 5-6] 7.49 9.23 11.581 13,84
10
25
50
201)
500
'rnese precipltalron Ill estimates are based 01 a jAirtipi_dtlr.alion AN is the Average ReC_rre^fR'riewal.
Please reler to NpAA Atlas 14. [)oewm�rt for more rnlormat er_ NUTE. ro m !l:ng forces eslin,ass nea• rero to appea, as zero.
* Upper bound of the 90% confidence interval
Precipitation Frequency Estimates (inches)
ARt
(Years)
[;;U
1D
non
41�
30
rain
6D
min
120
mrn
3
hr
6
hr
12
br
2�7
hr
r
[:�8
1
Fay
7
davI
l0
day
20
day 11
3D
day
45
j[i!2yjj
60
day
[--I-] 0.41
U.rif 0 8-1 1.13 1.41 1,67 l .79 2.18 2.58 3.02 3.50 3,91 4.47 5.{)4 6.77 8.2R
I U.45 12.46
` 1 O.A9
O.E9 0-99 1.37 1.72 2.03 2.17 2,63 3.13 3.65 4.21 4,69 5.33 6 U(1 8.U{} 9,72 12.23 14.54
U.92 l.lfi l ?.12 2S3 2.7€) 3.27 3-90 4.54 5.2(I 5.76 6.4(i 7.2(1 4.46 11.29 14.02 Ifi.a2
�I
L ' (1.57
tD ().63
LU() 1.27 1.84 2.39 288 3.U8 3.75 4,51 5.25 5.96 6.61 7.3(i 8.ij 1(1.63 12.5] 15.41 17.x5
25 0.68
1,09 1-38 2.C15 2.73 3.33
3.56 4.39 5.i3 fi.21
Ci.98 7.75 8.59 9.44 32.24 14.14 ]7.2619.71
50 (}.72
1.15 L45 2.19 2.97 3.6Ei
3. 92 4.8x 5.99 6.97
7.79 8.6i 9.58 lI1.48 13.53 15.4( 18.68 21.12
1D0 0.75
I.20 1.51 2.3 ] 3.19 3.99
4.28 5.37 G.67 7.76
8.61 9.58 t U.58 1 1.53 14.84 16.66 20.10 22.4x
21H1 0.78
l.?3 j. 2.42 3.4p 4.3()
4.62 5.87 7.37 8,59
9.46 I(}.i5 Il.62 l2.(i2 ]6,19 17.95 ?t.52 23.8t)
5D9 0.80
1.27 l -6-0 2.54 3.65 4E
1-29 161 2.(i1 3.82 4.99
5.[J6 Ffl 8.37 9,71
111,fi] 11. 77 13.05 14.I l 18.[I3 14.67 23,i9 25 50
1152 12.92 14.20 15.29 19,48 20.98 '24T82 2678
1DDD )S2
5.39 706 9.16 30.62
r ne upper bounp or me conhaence mlorvnl a€ stir. camiaenea €eve€ is iris value wn�b 5s of ire slmuraleo quamae varues rot a given nmuercy are greater man_
"7hese precipitation hegaen y eshmales are bn2e3 on a part a, duratia.� series. ARI 'is the Ava•sge Re9ureeri„o interval.
_
Please °stet to NAIlzr -.,14
€}vci mrn ,eo for me information_ NOI F, formalt.ng prevart5 es[males • ex z. -c lc appear as zero.
,
* Lower bound of the 90% confidence interval
Precipitation Fregnency Estimates (inches)
[years) min min h(45AR.I*10 7 10
ifirh16}
un mnmhhr r hrAdy day day day day day
3.U3 3,:39 3.9U 4.41 5.96 7.45 9.3x 11.32
U.42 U.67
D.49 U.7h
U_8q I.I6
0.98 I . IU
t.4{i
i .7�}
1.71 1.R4
2, l3 2.29
2.23
2.7fi
?,fi3 3.13
3 28 3.9(I
3.Erf 4,()7 4.64
4.50 FIE] 5.(
5.24 7.(J3 8.75
10.97 1321
fi 8.31
I0. ] 5 12.5tt 14.91
to 0.53 U.85 1.07 M55
2.02
2,42 2.6(I
3.16
3,71) 4.49
5.14 5.72
fi.41
7.10 9.33
11.2:1 13.81
1(.19
25 IJ.58 0.92 l.il 1.73
2.3(1
2,79 3.€)ll
3.68
4.46 5,29
6-iN) 6.G8
7.44
8. 0 lU.fiB
12.65 15.41
17.83
50 0.6(} 0.9ti 1.22 I.S4
2. 99
106 3.31)
4.U7
4.1) 5,92
6-fr7 7.43
8?6
9.05 11.76
13.72 1fi.64
)9_U5
100 (1.63 l.(H} 1.26 1.93
200 0.65 1-()2 129 2.01
2.(ifi
2.82
3.31 3.57
3.54 3.83
4.45
4.x2
5.5(} 6 SCa
ti.U3 7?I
7.33 8.19
9.()7
9.91 12.x3
14.7fr 17.80
26.20
B.(i() 8.96
9-90
I(1.77 33.89
I1.92 15,32
15.8U 18.96
[J.15 2U.46
21-31
?"_.7U
5DD 0.66 l.()_4 1.31 2.(}9
3.f)p
3.83 4.14
5.29
6.71 i0{)
8.9U 9-98
11.01
100D ().67 1.f}5 1.32 ?_l i
3.i l
4.03 4.36
5,63
7.22 S_77
fJ.59 10,7(i
i 1.87
l'_.x0 16.41
18.18 21-59
?3 72
The lower boijnrt o1 iris cznllaenCe irtti%al ul 90%conhei level 15 the value wlh.5". A it e SmJ!atea Guannla yBlaeS for a given 1rfigUDIey are less Inan.
January 2009

of
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PH Control Systems >
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Concrete Removers >
Automotive Products >
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REQUEST A QUOTE
Fortrans Inc. announces a new self-
• • • • • • • .. • • • • • . • • • •
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system designed specifically for the
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Contact Us
produced at ready mixed concrete
Biodegradable Info
plants.
Safety
The Model 5000S pH Control and
Home Page
Monitoring System offers precise
monitoring and pH control of process
water in settling basins, lagoons and
other outfall containment devices.
Toll Free,
877-387-8509
Office,.
919-365-8004
Mobile:
919-624-8832
Durham. North Caroiina This system has been certified by an independent engineering firm to perform as
specified. The units are shipped fully assembled and only require an electrical connection
and a supply of carbon dioxide gas. The system will treat approximately 100,000 gallons
per day. The system is also available as a skid mounted unit. (Model 5000SK) These
systems are highly reliable and affordable to purchase and operate.
The Model 5000S pH Control and Monitoring System enables operators of ready mixed
concrete plants to effectively control the pH and Total Suspended Solids of both process
water and/or stormwater run-off. After the pH is lowered to 7.5 the typical total suspended
solids are between 5-18 mg/L without filtration. This enables the facility to meet the pH
requirements as well as the 30 mg/L TSS most permits demand before the water can be
released. The treated water may be used to batch concrete, to irrigate rock, to rinse the
interiors of the drums on the concrete trucks and rinse the exteriors of the trucks as well.
Our systems offer precise monitoring and control of the pH in
pit systems, settling basins, lagoons and other containment
areas.
We are currently using 9 of the Model 5000 pH Control Systems supplied by
Fortrans at our ready mixed concrete plants and are very pleased with them. In fact,
they are not only helping us to control the pHl in our pi systems but also help us
deal with the solids build-up as well. They are reliable and virtually maintenance
free and one of the best method that I have found in dealing with high pH process
water which is on of the most critical and increasingly regulated issues in our
industry. We currently operate 30 plants and I intend to purchase several more
Model 5000 systems."
Jeff Lamm, Environmental Manager Southern Concrete Materials Asheville, NIC
The pH CONTROL SYSTEMS will treat up
January 2009

,r of.'3
to 57 gallons per minute - max 20' head
pressure. Unique water circulation design
eliminates the need for separate
neutralization tank.
1.5" quick connect fittings on inlet and
return for easy hook-up. The standard unit
is equipped with 2-20' sections of 1.5"
flexible hose with quick connect fittings.
Inlet and outlet fittings at the basin or
lagoon are per our specifications.
Unit is shipped completely assembled.
The chemical controller is preprogrammed
to maintain a pH of 7.5. Just attach hoses
and PVC fittings.
I year warranty on all component parts
and housing.
The pH CONTROL SYSTEMS are designed to treat and maintain a specified pH level in a
body of water usually 100,000 gallons or less to allow the permitted discharge of treated
water to the environment. Permits must be obtained from the local governing agency to
allow any discharge to the environment Treated water may be used for wetting of rock
and/or dust control to aid compliance with storm water run off regulations and may be
used in water recycling systems.
pH Control System - Skid Mounted
January 2009

t.r

TRIGON
March 26, 2009
Mr. Ken Pickle
NCDFNR
Division of Water Quality — Storinwater Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Reference: Central Carolina Concrete - Winston-Salem Plant
Notice of Intent — NCG140000
Application 140357 Resubmittal
Winston-Salem, Forsyth County, North Carolina
Dear Mr. Pickle:
lli�tl:
TrigonjKleinfelder Inc. is submitting this revised Notice of Intent (NOI) on behalf of our client, Central
Carolina Concrete. Please find enclosed three copies of the NOI Form and supporting documentation
If you have any questions concerning the submittal, please contact the undersigned at [phone] or
Mr. Johnie Alexander at [phone].
Sincerely,
TRIGONJKI.[�rtiFELDEx, ING,
Michael A. Sussman, PE
Senior Engineer
Enclosures
CC: Ms. Rose Pruitt
NCDF,NR-Division of Water Quality
Winston-Salem Regional 011ice
585 Waughtown Street, Winston-Salem, North Carolina, 27107
CC: Mr. Johnie Alexander
Central Carolina (.'oncretc
'192'168.53, 7 `.voll l l4'cirking'.Share!Irulustrial I)n,istorrl04512009'J'r'giectslSmith .Atilhvork10d0 Smith Millwork .4El.doc