NCG140212_COMPLETE FILE - HISTORICAL_20040712

STORMWATER DIVISION CODING SHEET
RESCISSIONS
PERMIT NO.
(�/� /yob J�
DOC TYPE
COMPLETE FILE - HISTORICAL
DATE OF
RESCISSION
❑ joO '4 b 1 �-
YYYYMMDD

Larry H. Spence
Ready Mixed Concrete Company
PO Box 27326
Raleigh, North Carolina 27611
Subject:
Dear Mr. Spence:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Deparlment of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Coleen H. Sullins, Deputy Director
Division of Water Quality
July 12, 2004
Rescission of NPDES Permit
Ready Mixed Concrete Company — Fair Grounds
Permit Number NCG140212
Wake County
It is the understanding of the Division that the subject facility is no longer in operation and/or all
stormwater discharge associated with the permitted site has been eliminated. In accordance with this
information, NPDES General Permit NCG140212 is rescinded, effectively immediately.
Please be advised that this permit rescission is based wholly upon the activities which would require
general permit coverage at the site have ceased or been eliminated. Division staff has not visited the site
to obtain independent verification. Operating a treatment facility, discharging wastewater or discharging
stormwater to waters of the State without a valid NPDES Permit will subject the responsible party to a
civil penalty of up to $25,000 per day. Enforcement action will be certain for persons that have
voluntarily relinquished permit coverage when, in fact, continuing permit coverage was necessary. If, in
retrospect, you feel the site still requires permit coverage, you should notify this office immediately.
Furthermore, if in the future you wish to again discharge to the State's surface waters, you must first
apply for and receive a new NPDES Permit.
If you have questions about this matter, please contact Vanessa Manuel at [phone], extension 532
or the Water Quality staff in the Raleigh Regional Office at [phone],
Sin
3!cle- Alan W. Klimek, P. E.
Cc: ,Ken Schuster, DWQ RRO — w/ attachments i
Bradley Bennett, Stormwater & General Permits Unit
Central Files — w/ original attachments
Fran McPherson, DWQ Budget Office
M
NCDENR
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service
1 800 623-7748

0, 11.T'
�a0° Permit Coverage
° Rescission Request Form
National Pollutant Discharge Elimination System
General Permit NCG140000
Certificate of Coverage Number
NCG140212
The following is the information currently in our database for your facility. Please review this information carefully and
make all corrections as necessary in the space provided to the right of the current information.
Facility Information
Facility Name:
Facility Physical Address:
Facility Contact:
Mailing Address:
Phone Number:
Permit Information
Permit Contact:
Mailing Address:*
Phone Number:
Fax Number:
Ready Mixed Concrete Co - Fair Grounds
N C Highway 54
Raleigh, NC 27636
Larry Spence
PO Box 27326
Raleigh, NC 27611
919-790-1520 Ext.
�)a �
Lyman Austin
PO Box 27326
Raleigh, NC 27611
919-790-1520 Ext.
* This is the address to which the permit rescission notice will be mailed
Reason for re§cission request (this is required information):
REQUEST AND CERTIFICATION
I, as an authorized representative, hereby request rescission of coverage under NPDES Stormwater General Permit
NCG140000 for the subject facility. I am familiar with the information contained in this request and that to the best of
my knowledge and belief such information is true, complete and accurate.
Signature
or type nafne of persoVigning above
Please return this completed rescission request form to:
Date
Title
SW General Permit Coverage Rescission
Attn: Valery Stephens
Stormwater and General Permits Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617

t �♦
100 M Concrete, e Telephone: [phone] u n i co n///
100 Meredith Drive FAX [phone]
Z Suite 200A
Durham, NC 27713 Concrete
Kenneth Schuster, P.E.
Regional Water Quality Supervisor
DENR_
1628 Mail Service Center
Raleigh, N.C. 27699-1628 / `6
Re: NPDES Stormwater Permit Audit
Unicon Concrete Plant No. 2, COC Number NCGY40212,/, '
Highway 54, Wake County
Dear Mr. Schuster:
This letter responds to your letter of October 1, 2002, to Mr. Corbet Strickland of
Unicon Concrete (Unicon) concerning the results of an audit of the Unicon plant listed
above by three staff members from the Division of Water Quality (DWQ) on May 10 with
respect to the plant's stormwater permit. Your letter provided the comments of DWQ
staff from that audit and requested that Unicon respond to those comments within 30
working days. This letter provides Unicon's responses to those comments and the
additional measures undertaken by Unicon to assure compliance with the permit.
First, and foremost, Unicon wished to reiterate its continuing commitment to
meeting all of its environmental and regulatory obligations, and where possible, moving
well beyond those requirements.
However, in this case, Unicon must also acknowledge that certain discrepancies
have occurred at this plant. Unicon is committed to remedying them and working with
DWQ to assure that they do not recur. In addition, Unicon is including specific
responses to some of the points in your letter of October 1, as follows:
Part Il. Section A. Stormwater Pollution Prevention Plan (SPPP). As your letter
noted, Unicon has an established SPPP for the plant under the stormwater program.
However, the May audit determined that some deficiencies exist in the current plan.
With respect to the location map included in the SPPP, Unicon is modifying it to add the
receiving water name, as referenced under point 1(a). No response is necessary to
1(b). The site map, referenced under 1(c), is also being annotated to add additional
information specified under that section.
Your letter also noted under 1(d) that no list of spills or leaks over the past three
years was included; the reason is that no spills or leaks occurred at the plant over that
period, so that no list was necessary. However, it DWQ prefers that some reference or
annotation of that fact be included, Unicon can do so. Please advise us as to your
preference. Point 1(e) notes Unicon's certification; no response is necessary.
With respect to the Stormwater Management Plan, Section 2, your letter noted
the following deficiencies. Under 2(b), your letter noted that the secondary containment
did not appear to be locked. Unicon has corrected this deficiency, and is adding
documentation to confirm that required observations are made and any accumulated

stormwater described. The BMP summary, referenced in 2(c), is also being annotated
to clarify the discharge points and control measures applicable to each.
The plant has its required Spill Prevention and Response Plan (SPRP), but your
letter noted that only limited documentation on implementation was included in our file.
This deficiency has been remedied. Similarly, the Preventative Maintenance and Good
Housekeeping Program and Employee Training documentation, under points 4 and 5, is
being updated and maintained appropriately.
With respect to point 6 of your letter and the SPPP, we believe that a
misunderstanding exists. Your letter notes that the plant manager stated that the SPPP
is being developed. However, our review of your letter with him indicates that he was
commenting on the SPCC, and not the SPPP. As noted in the second paragraph on
page 1 of your letter and our comments above, the SPPP for the plant already exists,
and is currently being updated. Points 7, 8, and 9 are reminders to review, update,
inspect, and document these activities for the SPPP. Unicon has reviewed these
recommendations and is adjusting its approach to assure that these recommendations
are fully implemented.
The next portion of your letter dealt with Part 11.6, Analytical Monitoring
Requirements, cited certain deficiencies. The first point reiterated the initial point of
your letter that the current SPPP plan for the plant needs to be updated; as described
previously, Unicon has made these changes and is updating the plan. Similarly,
Section B.1 deals again with the identification of discharge and sampling points, which
are being added to the site map, as noted previously. The Section B.2 comment notes
that no analytical sampling is needed as the plant uses less than 55 gallons of new
motor oil.
Your comments on Sections C.2, 4 and 5 note that records were not available for
analytical sampling for certain events and time periods. Unicon agrees and is
remedying the lack of monitoring. Similarly, the comments on Section F notes that
records for qualitative monitoring was not available for certain periods, and on Part III
Section D.6 that documentation and records should be maintained on -site for a period
of five years. Unicon has revised its procedures to assure that these records are
properly maintained on -site.
Finally, your comment on Part III Section E.7, 8 and 9 simply notes the
requirements for reporting of abnormal discharges and occurrences. Unicon has noted
this comment, but no response is necessary.
As your letter describes, Unicon staff previously contacted DWQ staff to discuss
the results of the inspection and audit, and particularly to provide information to your
agency on the remedial measures that have been undertaken to remedy the identified
deficiencies. We believe that all of them have been remedied and meet DWQ's
concerns. We also would point out that the deficiencies noted in your letter, while
important to the stormwater permit program and compliance by Unicon with its permit,
all relate to various paperwork, administrative, and training obligations. Most
importantly none of them relate to any improper discharge or instance of environmental
impact.
Thus, Unicon believes that its responses to remedy the cited deficiencies should
be sufficient to fully resolve this matter, and that no further enforcement response by
DWQ is necessary or appropriate. If you believe that some additional action is
-2-

appropriate, we would appreciate an opportunity to meet with you and your staff before
any decision on such action. We appreciate the opportunity to respond on these issues,
and look forward to continuing to work with DWQ. If you have any questions or need
any additional information, please do not hesitate to contact us.
Very truly yours,
9-),
John Holt
Environmental/Technology Manager
Unicon Concrete, LLC
-3-

State of North Carolina
Department of Environment
and Natural Resources
Raleigh Regional Office
Michael F. Easley, Governor
William G. Ross, Secretary
4
NCDENR
ENVIRONMENT AND NATURAL RESOURCE5
DIVISION OF WATER QUALITY
September 13, 2002
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
MR.CORBET STRICKLAND
UNICON CONCRETE, LLC
RDU AREA OFFICE
P. 0. BOX 33636
RALEIGH, NC 27636
Subject: Notice of Violation
NPDES Stormwater Permit
COC Number NCG140212
Unicon Concrete, Plant 2
Wake County
Dear Mr. Strickland:
On May 10, 2002 representatives from this office; Vanessa Manuel, Aisha Lau, and Joe Albiston
conducted an audit with you of the paperwork for the subject facility. The audit was done to ensure
compliance with the stormwater permit. You were asked to provide a copy of the permit and the
associated documentation that accompanies the permit.
Part I1. Section A. Stormwater Pollution Prevention Plan (SPPP) was reviewed and the
following deficiencies were found. The facility did have a SPPP for the facility. However, it was an
older document and has not been updated for the present General Permit effective August 1, 1999.
L(a) The facility did have a USGS quadrangle map showing the location. It also needs to contain
the name of the receiving water(s) to which the stormwater 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.
L(b) The facility did have a narrative description of storage practices, loading and unloading
activities, outdoor process areas, dust or particulate generating or control processes, and waste
disposal practices on site.
Unicon Concrete NOV
1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone [phone] FAX [phone]
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Page 2
L(c) There was a site map that had only minimal information. It needs to be redone specifically as
per the language in this condition.
L(d) There was no list of spills or leaks that have occurred over the last 3 years (as well as corrective
actions for mitigation) as required.
L(e)There was a page for document certification and it was signed.
2.(a) The SPPP did have a Stormwater Management Plan (SMP) feasibility study. This technical
analysis is important in determining how you will meet compliance on the site.
2.(b) Secondary containment was observed at this site and did not appear to be locked. Records
documenting the individual making the observation, and the description of the accumulated
stormwater was not available upon inspection.
2.(c) There was a BMP summary, but it is not clear where all the discharge points are and how each
individual one is being controlled.
3. A Spill Prevention and Response Plan (SPRP) document has been prepared for Unicon Concrete,
LLC. at this location. However, it was written December 14, 1995. It shows what could be
implemented but only one month was documented on what was implemented.
4. The facility shall maintain a Preventative Maintenance and Good Housekeeping Program. The
documentation did have what the program should consist of, but there was only one month of
documentation of what inspections, maintenance, etc. that was actually being conducted.
5. The facility shall maintain an employee training program on spill clean up and preventative
maintenance. One month of documentation was provided of this activity.
6. The SPPP shall identify a specific person who will coordinate the SPPP and ensure the
implementation as per permit condition Part 11 Section A 6. The plant manager stated that the SPPP
is being developed at this time.
"Plan amendment" needs to be continuously updated. The SPPP shall be reviewed and updated
on an annual basis.
8. The facility is required to have a "facility inspection program" that inspects all stormwater systems
at least on a semiannual basis and records maintained of this activity.
9. The facility shall implement the plan and document all monitoring, measurements, inspections
and maintenance. The facility did have some minimal documentation, including the use of the DENR
monitoring form.
Unicon Concrete NOV
1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone [phone] FAX [phone]
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Page 3
Part 11 Section B: Analytical monitoring requirements- Stormwater discharge (SPPP) was
reviewed and the following deficiencies were found. The facility did have a SPPP for the facility.
However, it was an older document and has not been updated for the present General Permit
effective August 1, 1999.
Section B 1. States that the permittee shall perform analytical sampling of the stonnwater discharge
from the facility. No results were available on site for the August 1, 2000 to July 31, 2001. Since no
stormwater discharge points were labeled on site map, where is the sampling point for the January
23, 2002 data and are there any more discharge points?
Section B 2. States that the permittee shall perform analytical sampling of the stormwater associated
with on -site vehicle maintenance discharge from the facility. Facility uses less than 55 gallons of
new motor oil so analytical sampling is not needed.
Section C 2,4,5. States that the permittee shall perform analytical sampling of discharge of process
wastewater associated with the four distinct activities listed in the permit from the facility. This site
had a discharge outfall monitoring report, but failed to record Total Suspended Solids and Settleable
solids for the January 23, 2002 event. No discharge outfall monitoring report was available on site
for the August 1, 2000 to July 31, 2001.
Section F states that the permittee shall perform qualitative monitoring of the stormwater outfalls
on a semiannual basis. This is done to assess the effectiveness of the SPPP and assess new areas of
stonnwater pollution at the facility. This site had a qualitative monitoring discharge outfall
monitoring report for January 23, 2002, but no records for previous years were available.
Part III Section D 6. states that all documentation and records associated with the permit shall be
maintained on site for a period of 5 years. There was a discharge monitoring report dated January
23, 2002 but, no other records were available during the audit.
Part I❑ Section E 7,8,9. Reporting Requirements states that pernittee shall report occurrence
discharges of abnormal quantity waste, unit failure, or by-pass directly to receiving waters within
24 hours from the time the permittee became aware of the circumstances.
As per your telephone call you are making the necessary changes to your SPPP and other documents
relative to the permit. Please respond to the above comments in this Notice within 30 working days
after its receipt detailing the actions taken to ensure compliance with the stormwater permit. If you
have any questions regarding the inspection or this notice please contact Mr. Albiston at 919-571-
4700 ext 267.
Sincerely,
Kenneth Schuster, P.E.
Regional Water Quality Supervisor
cc: NPDES Compliance Unit
Wake Co. Health Dept.
Central Files

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Alan W. Klimek, P.E. Director
LYMAN AUSTIN
READY MIXED CONCRETE CO
PO BOX 27326
RALEIGH, NC 27611
Dear Permitter:
A, T 0 WA MN
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
January 24, 2003
JAN 2 8 2003
i
Subject: NPDES Permit Modification -Name and/or Ownership Change
Permit Number NCG 140212
Ready Mixed Concrete Co - Fair Grounds
Unicon Concrete LLC
Wake County
In accordance with your request received November 27, 2002, the Division is forwarding the subject permit
modification. This modification documents the change in the ownership of the subject facility. All other terms and
conditions in the original permit remain unchanged and in full effect. This permit modification is issued under the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U. S. Environmental Protection Agency dated December 6, 1993.
This permit modification does not affect the legal requirement to obtain other permits which may be
required by the Division of Water Quality, the Division of Land Resources, Coastal Area Management Act, or any
other Federal or Local government permit that may be required. If you have any questions concerning this permit,
please contact Valery Stephens at the telephone number or address listed below.
Sincerely,
'Fti I in",rC.P.
Jbr Alan W. Klimek, P.E.
cc: Central Files
�Rzlcigh-Regional Office, Water Quality Section
Stormwater and General Permits Unit Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
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STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140212
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,
READY MIXED CONCRETE CO
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
READY MIXED CONCRETE CO - FAIR GROUNDS
N C HIGHWAY 54
RALEIGH
WAKE COUNTY
to receiving waters designated as Raleigh MSSS to Simmons Branch, a class C NSW stream, in the Neuse River
Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, IV, V, and VI of General Permit No. as attached.
This certificate of coverage shall become effective January 24, 2003.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day January 24, 2003.
A11tliu.�p1�••_•7'
for Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission

W
State of North Carolina
Department of Environment
and Natural Resources
Raleigh Regional Office
Michael F. Easley, Governor
William G. Ross, Secretary
4
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT ANc N/ URAL RESOURCES
DIVISION OF WATER QUALITY
October 1, 2002
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
MR.CORBET STRICKLAND
UNICON CONCRETE, LLC
RDU AREA OFFICE
P. O. BOX 33636
RALEIGH, NC 27636
Subject: Notice of Violation
NPDES Stormwater Permit
COC Number NCG 140212
Unicon Concrete, Plant 2, Hwy. 54
Wake County
On May 10, 2002 representatives from this office; Vanessa Manuel, Aisha Lau, and Joe Albiston
conducted an audit with you of the paperwork for the subject facility. The audit was done to
ensure compliance with the stormwater permit. You were asked to provide a copy of the permit
and the associated documentation that accompanies the permit.
Part II. Section A. Stormwater Pollution Prevention Plan (SPPP) was reviewed and the
following deficiencies were found. The facility did have a SPPP for the facility. However, it was
an older document and has not been updated for the present General Permit effective August 1,
1999.
L(a) The facility did have a USGS quadrangle map showing the location. It also needs to contain
the name of the receiving water(s) to which the stormwater 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.
L(b) The facility did have a narrative description of storage practices, loading and unloading
activities, outdoor process areas, dust or particulate generating or control processes, and waste
disposal practices on site.
1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycledl10% post -consumer paper

Unicon Concrete NOV
Page 2
L(c) There was a site map that had only minimal information. It needs to be redone specifically
as per the language in this condition.
L(d) There was no list of spills or leaks that have occurred over the last 3 years (as well as
corrective actions for mitigation) as required.
1.(e)There was a page for document certification and it was signed.
2.(a) The SPPP did have a Stormwater Management Plan (SMP) feasibility study. This technical
analysis is important in determining how you will meet compliance on the site.
2.(b) Secondary containment was observed at this site and did not appear to be locked. Records
documenting the individual making the observation, and the description of the accumulated
stormwater was not available upon inspection.
2.(c) There was a BMP summary, but it is not clear where all the discharge points are and how
each individual one is being controlled.
3. A Spill Prevention and Response Plan (SPRP) document has been prepared for Unicon
Concrete, LLC. at this location. However, it was written December 14, 1995. It shows what
could be implemented but only one month was documented on what was implemented.
4. The facility shall maintain a Preventative Maintenance and Good Housekeenine Proa_ram. The
5. The facility shall maintain an employee training program on spill clean up and preventative
maintenance. One month of documentation was provided of this activity.
6. The SPPP shall identify a specific person who will coordinate the SPPP and ensure the
implementation as per permit condition Part II Section A 6. The plant manager stated that the
SPPP is being developed at this time.
7. "Plan amendment" needs to be continuously updated. The SPPP shall be reviewed and updated
on an annual basis.
8. The facility is required to have a "facility inspection program" that inspects all stormwater
systems at least on a semiannual basis and records maintained of this activity.
9. The facility shall implement the plan and document all monitoring, measurements, inspections
and maintenance. The facility did have some minimal documentation, including the use of the
DENR monitoring form.
1628 Mail Service Center, Raleigh, NC 27699.1628 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

Unicon Concrete NOV
Page 3
Part II Section B: Analytical monitoring requirements- Stormwater discharge (SPPP) was
reviewed and the following deficiencies were found. The facility did have a SPPP for the facility.
However, it was an older document and has not been updated for the present General Permit
effective August 1, 1999.
Section B 1. States that the permittee shall perform analytical sampling of the stormwater
discharge from the facility. No results were available on site for the August 1, 2000 to July 31,
2001. Since no stormwater discharge points were labeled on site map, where is the sampling poin t
for the January 23, 2002 data and are there any more discharge points?
Section B 2. States that the permittee shall perform analytical sampling of the stormwater
associated with on -site vehicle maintenance discharge from the facility. Facility uses less than 55
gallons of new motor oil so analytical sampling is not needed.
Section C 2,4,5. States that the permittee shall perform analytical sampling of discharge of process
wastewater associated with the four distinct activities listed in the permit from the facility. This
site had a discharge outfall monitoring report, but failed to record Total Suspended Solids and
Settleable solids for the January 23, 2002 event. No discharge outfall monitoring report was
available on site for the August 1, 2000 to July 31, 2001.
Section F states that the permittee shall perform qualitative monitoring of the stormwater outfalls
on a semiannual basis. This is done to assess the effectiveness of the SPPP and assess new areas
of stormwater pollution at the facility. This site had a qualitative monitoring discharge outfall
Part III Section D 6. states that all documentation and records associated with the permit shall be
maintained on site for a period of 5 years. There was a discharge monitoring report dated Januar y
23, 2002 but, no other records were available during the audit.
Part III Section E 7,8,9. Reporting Requirements states that permittee shall report occurrence
discharges of abnormal quantity waste, unit failure, or by-pass directly to receiving waters within
24 hours from the time the permittee became aware of the circumstances.
As per your telephone call you are making the necessary changes to your SPPP and other
doucments relative to the permit. Please respond to the above comments in this Notice within 30
working days after its receipt detailing the actions taken to ensure compliance with the stormwater
permit. If you have any questions regarding the inspection or this notice please contact Mr.
Albiston at 919-571-4700 ext 267.
Si cerely
Bonet chuster, P.E.
Regional Water Quality Supervisor
cc: NPDES Compliance Unit
Wake Co. Health Dept.
Central Files

State &,North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
JOHN WATKINS
UNICON CONCRETE INC. - PLANT 2
POST OFFICE BOX 33097
RALEIGH, NC 27636
1�
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
July 26, 1999
Subject: Reissue - NPDES Stormwater Permit
Unicon Concrete Inc. - Plant 2
COC Number NCG140212
Dear Permittee: Wake County
In response to your renewal application for continued coverage under general permit NCG140000, the Division of
Water Quality (DWQ) is forwarding herewith the reissued Stormwater general permit. This permit is reissued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between the state of North Carolina and the U.S. Environmental Protection Agency, dated December 6, 1983.
The following information is included with your permit package:
• A copy of general stormwater permit NCG140000
* A Stormwater Pollution Prevention Plan (SPPP) Certification Form. Completion of this form is required to
certify that you have developed and implemented the SPPP as per the conditions of the permit. This form
must be completed and returned to the Division within 30 days of receipt of this letter.
DO NOT SEND the SPPP with the signed form.
* Five copies of the Analytical Monitoring form and five copies of the Qualitative Monitoring_ form
* A copy of a Technical Bulletin for the general permit which outlines changes in the permit, key requirements,
and addresses frequently asked questions
* A Certificate of Coverage
Your coverage under this general permit is not transferable except after notice to DWQ. The Division 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 by DENR or relieve the permittee from responsibility
for compliance with any other applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or
decree. _
If you have any questions regarding this permit package please contact Bill Mills of the Central Office Stormwater
and General Permits Unit at [phone], ext. 548
Sincerely,
for Kerr T. Stevens
cc: Central Files
Stormwater and General permits Unit Files
Raleigh Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
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STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140212
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,
UNICON CONCRETE INC. - PLANT 2
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
UNICON CONCRETE INC. - PLANT 2
N. C. HWY 54
RALEIGH
WAKE COUNTY
to receiving waters designated as Raleigh MSSS to Simmons Branch in the Neuse River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III,
IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective August 1, 1999.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day July 26, 1999.
for Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

)Y State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Gary McLamb
Unicon Concrete, Inc.
100 Meredith Dr. Suite 200A
Durham, NC 27713
Dear Mr. Gary McLamb:
December 15, 1995
Subject: General Permit No. NCG140000
Unicon Concrete, Inc.
COC NCG 140212
Wake County
In accordance with your application for a stormwater discharge permit received on July 18, 1995, we are
forwarding herewith the subject certificate of coverage 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
December 6, 1983.
The stormwater permit you are receiving, NCG140000, does not permit wasting concrete, dumping excess
concrete, directly into storm sewer outfalls or into waters of the state. Any facility which either dumps excess
concrete or washes excess concrete into storm sewers or waters of the state will be operating in direct violation to
both the terms of this permit and the North Carolina General Statutes. Such a discharge shall be considered an
illegal discharge and may subject the owner to enforcement actions in accordance with North Carolina General
Statutes 143-215.6A
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to
you, you have the right to request an individual permit by submitting an individual permit application. Unless
such demand is made, this certificate of coverage shall be final and binding.
Please take notice that this certificate of coverage is not transferable except after notice to the Division of
Environmental Management. The Division of Environmental Management may require modification or revocatior
and reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which may
Division of Environmental Management or permits required by the Division of Land R ur ON
Management Act or any other Federal or Local governmental permit that may be required. C
If you have any question concerning this permit, please contact Mr. Bill Mills at telepho e r cithber c
5083, extension 548.
\'
Sincerely, OhfC,A,'nl S1*NFt10y
A. Preston Howard, Jr. P.E.
cc: Raleigh Regional Office
Mr. Roger O. Pfaff, P.E., EPA
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140212
STORMWATER 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,
Unicon Concrete, Inc.
is hereby authorized to discharge stormwater and rinse waters from a facility located at
Unicon Concrete - Plant 2
N.C. Hwy 54
Raleigh
Wake County
to receiving waters designated as the City of Raleigh Storm Sewer System and Simmons Branch in the Neuse River
Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, B, III
and IV of General Permit No. NCG 140000 as attached.
This Certificate of Coverage shall become effective December 15, 1995.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day December 15, 1995.
f 3 BY
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

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