NCG140216_COMPLETE FILE - HISTORICAL_20080626

VA
STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/V
DOC TYPE
[y HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ �L)U� O1") a
YYYYM M D D

- Q0O, WATF9
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7
June 26, 2008
Mr. Lyman Austin
Ready Mixed Concrete Co.
P.O. Box 27326
Raleigh, NC 27611
Subject: Stormwater Inspection
Ready Mixed Concrete Co.
NPDES Permit Number NCG140216
NPDES Permit Number NCG140242 and
NPDES Permit Number NCG 140074
Wake County
Dear Mr. Austin:
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
On June 25, 2008, Ms. Stephanie Brixey of the Raleigh Regional Office conducted a stormwater evaluation
inspection of Ready Mixed Concrete Co. facilities located on Unicon Drive, Forestville Road and Old Garner
Road. The assistance of James Walters, Region 1 Manager, Dexter Tart, Asset Manager, and yourself was
appreciated as it eased the inspection process.
The following observations were made:
Ready Mixed Concrete Co. - 5025 Unicon Drive - NPDES Permit Number NCG140216
The facility does have a Stormwater Pollution Prevention Plan (SPPP) on site. The Facility Inspection
program includes monitoring the outfall, semi-annual housekeeping inspections, and secondary
containment inspections semi-annually, annual inspection of the dust filter system and inspecting for
spills and releases. Employee training is documented.
2. The process water is contained in a closed loop system and the water is recycled and mixed with
concrete. The water enters in to a four -pit area, goes through a filtering system, pH adjustment and a
CO2 system before being stored for re -use.
The area is bermed and ditched in such a way that all stormwater will pond on -site near the pit. It
appears that a discharge would only occur if there were continuous heavy rainfall over a period of time.
At his time no analytical monitoring has been conducted due to no discharge. Section C of the General
Permit No. NCG140000 states, "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."
y` rCara ina
ural/y
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: h2o.encstate.nc.us 1628 Mail Service Center Raleigh, NC 27699-1628 FAX [phone]
An Equal OpportunitylAff rmalive Action Employer — 50% Recycled110% Post Consumer Paper

Ready Mixed Concrete Co.
Wake County
Ready Mixed Concrete Co. - 6840 Forestville Road- NPDES Permit Number NCG140242
The facility does have a Stormwater Pollution Prevention Plan (SPPP) on site. The Facility Inspection
program includes monitoring the outfall, semi-annual housekeeping inspections, and secondary
containment inspections semi-annually, annual inspection of the dust filter system and inspecting for
spills and releases. Employee training is documented.
2. There is a process wastewater pit on -site, which overflows into Wake Stone Lake. If the lake overflows
the water goes into the rock quarry.
Qualitative monitoring had been conducted semi-annually. Mr. Austin stated that the analytical
monitoring had been conducted as required but there was no documentation on -site to verify that. Mr.
Austin stated that he would email me the lab results and make sure a copy was on -site. The last
analytical documentation on -site was from 2001. Please submit this documentation within 15 days of
receiving this letter.
Ready Mixed Concrete Co. - 604 Old Gamer Road- NPDES Permit Number NCG 140074
The facility does have a Stormwater Pollution Prevention Plan (SPPP) on site. The Facility Inspection
program includes monitoring the outfall, semi-annual housekeeping inspections, and secondary
containment inspections semi-annually, annual inspection of the dust filter system and inspecting for
spills and releases. Employee training is documented.
2. The washout pits have been relocated to higher ground on the premises to prevent commingling with
stormwater. The water from the pits is recycled and used to wash out the trucks.
3. Analytical and qualitative monitoring has been conducted as required.
Please be reminded that Section B of the general permit describes the analytical monitoring requirements from a
stormwater discharge and that Section C describes the analytical monitoring requirements from the process
wastewater. In the case of commingled process wastewater, the most stringent of the applicable limits will
apply. Section F of the permit describes the qualitative monitoring requirements. "All qualitative monitoring
will be performed twice per year, once in the spring (April - June) and once in the fall (September -
November)."
The overall conditions of Ready Mixed Concrete's stormwater programs at the three facilities listed above are
complaint with Division standards. If you have any questions regarding the attached report or any of the
findings, please contact Stephanie Brixey at: [phone] or email [[e-mail]].
Sincerely,
r�p1�e.n�e bRjj,� CU
Stephanie Brixey
Senior Environmental Specialist
Cc: Central Files
RRO -SWP

Permit: NCG140216
SOC:
County: Wake
Region: Raleigh
Compliance Inspection Report
Effective: 08/01/04 Expiration: 07/31/09 Owner: Southern Equipment Co
Effective: Expiration: Facility: Ready Mixed Concrete Cc - Unicon Drive
5025 Unicon Dr
Contact Person: Lyman Austin
Directions to Facility:
System Classifications:
Primary ORC:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Title: Regional Manager
Certification:
Wake Forest NC 27587 .
Phone:[phone]
Phone:
Inspection Date: 06/25/2008 Entry Time: 10:00 AM Exit Time: 11:00 AM
Primary Inspector: Stephanie Brixey�Phone:
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Stormwater
Permit Inspection Type: Ready Mix Concrete Stormwater/Wastewater Discharge
COC
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1

Permit: NCG140216 Owner - Facility: Southern Equipment Co
Inspection Date: 06125/2008 Inspection Type: Stonnwater
Inspection Summary:
Reason for Visit: Routine
Page: 2

Permit: NCG140216 Owner - Facility: Southern Equipment Co
Inspection Date: 06/25/2008 Inspection Type: Stormwater
Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes
No
NA
NE
Does the site have a Stormwater Pollution Prevention Plan?
■
❑
❑
❑
# Does the Plan include a General Location (USGS) map?
■
❑
❑
❑
# Does the Plan include a "Narrative Description of Practices"?
■
❑
❑
❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
. ■
❑
❑
❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
■
❑
❑
❑
# Has the facility evaluated feasible alternatives to current practices?
■
❑
❑
❑
# Does the facility provide all necessary secondary containment?
■
❑
❑
❑
# Does the Plan include a BMP summary?
■
❑
❑
❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
■
❑
❑
❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
■
❑
❑
❑
# Does the facility provide and document Employee Training?
■
❑
❑
❑
# Does the Plan include a list of Responsible Party(s)?
■
❑
❑
❑
# Is the Plan reviewed and updated annually?
■
❑
❑
❑
# Does the Plan include a Stormwater Facility Inspection Program?
■
❑
❑
❑
Has the Stormwater Pollution Prevention Plan been implemented?
■
❑
❑
❑
Comment:
Qualitative Monitoring
Yes
No
NA
NE
Has the facility conducted its Qualitative Monitoring semi-annually?
■
❑
❑
❑
OT,a,Mn
Analytical Monitoring
Yes
No
NA
NE
Has the facility conducted its Analytical monitoring?
❑
❑
■
❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas?
❑
❑
■
❑
Comment: This site has a closed loop system. Stormwater will pond on site due to the
layout of the land and the way the area around the plant is ditched or bermed.
Permit and Outfalls
Yes
No
NA
NE
# Is a copy of the Permit and the Certificate of Coverage available at the site?
■
Cl
❑
❑
# Were all outfalls observed during the inspection?
■
❑
❑
Cl
# If the facility has representative outfall status, is it properly documented by the Division?
❑
❑
■
❑
# Has the facility evaluated all illicit (non stormwater) discharges?
■
❑
❑
❑
• r�Z7 il'uiaili
Page: 3

a
p,I
Guaranteed Strenath
July 24, 2003
RimAIDY MIXED CONCRETE COMPANY
3610 Bush Street, Raleigh, NC 27609 P.O. Box 27326; Raleigh, NC 27611
Telephone [phone] % r
Fax [phone] _-./
NCDENR
Mr. KENNETH SCHUSTER, P.E.
1628 MAIL SERVICE CENTER
RALEIGH, NC 27699-1628
Dear Mr. Schuster:
In response to the request for copies of the analytical stormwater test data for
2002 calendar year.
I have made copies of the Ready Mixed Concrete Co. analytical test for 2002,
except NCG140077 Ready Mixed Concrete Hargett Street. That plant was taken
down in 1998 and the property is leased.
All of the Unicon plants that we bought December 2, 2002 that we closed and
never operated and two of the plants that we are operating do not have the
Unicon Concrete analytical stormwater test results.
Ready Mixed Concrete / Unicon Concrete Permits Xs:
NCG140063 Smithfield: NCG140062 Garner: NCG140213 Clayton:
NCG140216 Raleigh: NCG140218 Durham: NCG140250 Hillsborough:
NCG140216 Wake Forest:
Unicon Concrete no longer has any operations in the U.S. and we have no way
to get this information.
Sincerely,
Larry Spence
Assets Manager
Member National Ready Mixed Concrete Association

B
Memo to File: @ Site visit to Ready Mixed Concrete Plant # 31 Pernrit #
NCG 140216 and Carolina Sunrock Permit # NCG 140328
I visited the above sites on Monday May 3, 2004 to observe site during a rain event and
after a significant rainfall.
I met Ray Goodwin, acting Plant Manager, at Ready Mixed Concrete Plant # 31 at 09:25
AM and reviewed his stormwater plan. I then took photographs of the site facing north
toward the truck loading area, the southern end of property with trucks and area where
excess concrete is dropped from vehicles as parked, the collection tanks and Flooded area
near the drain collection tanks at the SW corner of property.
No stormwater was discharging from the site. It is collected and used in the mixing of
concrete at the site. The tanks collect all stormwater that is then used on site. Even after
rains the weekend before no discharge was evident at time of inspection.
I did not sample the stormwater, but it appears to be contained on the site during at least
normal rainfall events. It rained steady for two days prior to visit.
While touring the RMC site, I observed a silt pond behind their property that belonged to
Carolina Sunrock located on the hill above the RMC facility.
I took photos of the silt pond and area below the pond. The water observed was cloudy
from TSS in the discharge. The runoff from CS drains into the pond and then discharges
to the area below the pond. There was no discharge at the time of inspection, but the
cloudy conditions in the wet area below pond indicated that discharge had occurred
during the weekend.
I met with Tim Kopec at Carolina Sunrock at 10:00 AM and reviewed CS Stormwater
plan and permit. I took photos of their admix tank area which does not discharge, but is
pumped when needed by Noble Oil Recovery. I look photos of truck cleaning in the area
and the drainage area looking from the plant down the hill to the pond area. Mr. Kopec
stated that CS plans to install a "weir" (catch basin) arrangement similar to RMC in the
near future.
Tony Samples of CS has requested that we meet him at their RDU facility to observe the
changes made at that location.

7`
? 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
January 24, 2003
LYMAN AUSTIN
READY MIXED CONCRETE CO
PO BOX 27326
RALEIGH, NC 27611
MN
1�
82003
r 1/!
n
Subject: NPDES Permit Modification -Name and/or Ownership Change
Permit Number NCG 140216
Ready Mixed Concrete Co - Unicon Drive
Unicon Concrete LLC
Wake County
Dear Permittee:
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, 1983.
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,
for Alan W. Klimek, P.E.
cc: Central Files
(Rt�lcigfi Regional Office, Water Quality Section
Slormwater and General Permits Unit Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140216
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 - UNICON DRIVE
5025 UNICON DRIVE
WAKE FOREST
WAKE COUNTY
to receiving waters designated as a UT of Smith Creek, 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, 11, 111,
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.
e t,q1 n �q n
for Alan W. Klimek, P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission

NGGon (q 0;04
4 ;
MES•B.HUNT JR...
IVERNOR
i•�t.�i
ILL HOLMAN'
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
RALEIGH REGIONAL OFFICE
DIVISION OF WATER QUALITY
September 19, 2000
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
CRETARY Corbitt Strickland
Unicon, Inc
r'= : P.O. Box 33097
r1 Raleigh, NC 27636
X.
w;
Subject: Notice of Violation
Recommendation for Enforcement
-
Stream Standard Violation
Wake County
Dear Mr. Strickland,
On August 17, 2000, Robin Simpson of the Raleigh Regional Office and Kent
Penny'of the Wake County Health Department investigated complaints regarding water
quality at the Unicon, Inc's facility located along One World Way, Raleigh, NC. During
the subject site visit, process wastewater was observed to be discharging into a stream (a
unnamed tributary to Smith Creek, a Class C NSW waters) in the Neuse River Basin. In
addition, approximately 200 feet downstream from this outlet the stream floor was
coated with layers of fine residue/particulate from the process facility.
Accordingly, surface water samples were collected and analyzed. The results
confirm that the stream exhibited a pH of 7.0 upstream and 10.4 downstream. This
- - -•
represents a pH stream standard violation pursuant to 15A NCAC .0211(3)(g), which
states the following:
"I 5A NCAC .0211(3)(g) pH: shall be normal for the water in the area, which
generally shall range between 6.0-9.0 except that swamp waters may have a pH as low as
4.3 if it is the result of natural conditions;"
In addition to stream standard violations, subsequent to the site inspection and
sampling efforts a file review of the Unicon facility was conducted by DWQ staff.
zr
Accordingly, this review confirmed that Unicon, Inc. has a NCG140000 (General
= •• ti"••-.'"c :'' "'
Stormwater Permit) applicable for stormwater discharges for Ready Mix facilities.
The above observations, sample results, and file review confirm violations of
G.S. 143-215.1(6) and G.S. 143-215.1(11) which state the following:
I
_ _
M PILI NO ADDRESS: 1628 MAIL SERVICE CENTER, BALE IGH• NORTH CAROLI NA 27699-1628
..
LOCATION: 3800 BARRETT ORIVE, SUITE 101, RALEI G H• NC 27 609
PHONE [phone] FAX [phone]
' • -'
AN EQUAL OPPORTUNITY I AFFIRMATIVE ACTION EMPLOYER - SO p RECVCLEWIO o POST -CONSUMER PAPER

Mr. Strickland
Unicon Inc. NOV
Page 2
(6) Cause or permit any waste, directly or indirectly, to be discharged to or in any manner
intermixed with the waters of the State in violation of the water quality standards applicable to
the assigned classifications or in violation of any effluent condition of any permit, special order
or other appropriate instrument issued or entered into by the Commission under the provisions of
this Article.
(11) Cause or Permit discharges regulated under G.S. 143-214.7 that result in water pollution.
The illegal discharges and stream standard violations must be abated immediately. The
aforementioned violations and any future violations are subject to civil penalty assessment of
$25,000.00 per day for each violation.
This office requests that you respond in writing within 20 days of receipt of this
correspondence . I In your written response, please clearly indicate your intentions and provide a
schedule with dates that indicate how you propose to abate the above mentioned violations and
prevent future violations. For example, please discuss if you are planning to request an ATC
(Authorization to6nstruct) for additional treatment units. In addition, please detail your plans
and any effort taken thus far to restore the stream and/or remove the product from the stream.
Thank you for your attention to this matter. This Office is considering sending a
recommendation for enforcement action to the Director of the Division of Water Quality. Should
you have any questions regarding this matter, please contact Robin Simpson or myself at
[phone].
Sincerely,
Kenneth Schuster, P.E.
Water Quality Regional Supervisor
cc: Raleigh Regional Office -File Copy
Danny Smith, Central 401/Wetland Unit
Central Files
Non -Point Source Compliance/Enforcement Group
Stormwater, Group -Bradley Bennett

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
July 26, 1999
JOHN WATKINS
UNICON CONCRETE INC. - WAKE FOREST
POST OFFICE BOX 33097
RALEIGH, NC 27636
Subject: -Reissue - NPDES Stormwater Permit
Unicon Concrete Inc. - Wake Forest
_ COC Number NCG140216
Dear Petmittee: Wake County
In response to your renewal application for continued coverage under general permit NCG 140000, 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,
/J"yctlC� J
for Kerr T. Stevens
cc: Central Files
Stormwater and General per . Jnit Files
Raleigh Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140216
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 Norjb Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
UNICON CONCRETE INC. - WAKE FOREST
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. - WAKE FOREST
5025 UNICON DR
WAKE FOREST
WAKE COUNTY
to receiving waters designated as a UT of Smith Creek 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

'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
V
Dear Mr. Gary
In accordance with Yeu,
forwarding herewith the subs
permit. This permit is issued
Memorandum of Agreement
December 6, 1983.
December 15, 1995
General Permit No. NCG140000
Unicon Concrete, Inc.
COC NCG 140216
Wake County
r a stormwater discharge permit received on July 18, 1995, we are
cate of coverage to discharge under the subject state - NPDES general
to the requirements of North Carolina General Statute 143-215 .1 and the
North Carolina and the US Environmental Protection agency dated
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 be required by the
Division of Environmental Management 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.
If you have any question concerning this permit, please contact Mr. Bill Mills at telephone number 919/733-
5083, extension 548. '
Sincerely, GalGii ?i. Sl i<ED BY
3FU:D,-F'! 13ENtdl;:1 i
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 500/6 recycled/ 10%post-consumer paper

s
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140216
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 4
5025 Unicon Drive
Wake Forest
Wake County
to receiving waters designated as an unnamed tributary to Smith Creek in the Neuse River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, 11, III
and IV of General Pernut 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.
jail: _.::': •f H� A'�::'P;
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

41,
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