AQ_F_1900099_20190522_CMPL_InspRpt (4)

NORTH CAROLINA DIVISION OF Raleigh Regional Office
AIR QUALITY S.T.Wooten Corporation/Apex Plant-Plant No. 18
NC Facility ID 1900099
Inspection Report County/FIPS:Chatham/037
Date: 05/30/2019
Facility Data Permit Data
S.T.Wooten Corporation/Apex Plant-Plant No. 18 Permit 08704/R07
51 Red Cedar Way Issued 2/27/2018
Apex,NC 27502 Expires 1/31/2026
Lat: 35d 44.2788m Long: 78d 57.6923m Class/Status Small
SIC: 3273/Ready-Mixed Concrete Permit Status Active
NAILS: 32732/Ready-Mix Concrete Manufacturing Current Permit Application(s)None
Contact Data Program Applicability
Facility Contact Authorized Contact Technical Contact SIP
James Washburn Amzie Hoffner III James Washburn
Environmental Vice President Environmental
Compliance Manager [phone] Compliance Manager
[phone] [phone]
Compliance Data
Comments: In compliance.
Inspection Date 05/22/2019
Inspector's Name Mary Rose Fontana
Inspector's Signature: , '� Operating Status Operating
Compliance Code Compliance-inspection
L Action Code FCE
Date of Signature: ( On-Site Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP S02 NOX VOC CO PM10 *HAP
2016 0.9900 --- --- --- --- 0.4700 0.0580
2012 0.8300 --- --- --- --- 0.3800 0.0480
*Hi hest HAP Emitted(in pounds)
Five Year Violation History:None
Date Letter Type Rule Violated Violation Resolution Date
Performed Stack Tests since last FCE:None
Date Test Results Test Method(s) Source(s)Tested
(1) DIRECTIONS: From Raleigh Regional Office,take 1-440 heading south to Highway 64. Take the Highway 64/Tryon Road
exit number 98B towards Pittsboro. Once on Highway 64 West, travel approximately 9 miles to Builders First Source on the
left(south)side of Highway 64 in Apex. The concrete plant is located just to the right(west)of Builders First Source.

(In FACILITY DESCRIPTION:The facility is a truck mix concrete batch plant with a maximum output of 120 cubic yards per
hour.The facility is located on a track of land shared with two other businesses,which results in all three businesses sharing a
common access to US 64.
Safety Note: A hard hat,safety vest,safety glasses,and safety shoes are required for this inspection.
(III) INSPECTION SUMMARY: On May 22,2019,I,Mary Rose Fontana,inspected the ST Wooten-Apex-Plant#8.I met with
Mr.George Dutton,the plant manager.Mr.Dutton showed me around the facility.While I was there,none of the equipment was
in operation.Mr.Dutton provided a copy of the permit,bagfilter inspection records,and production records for review.These
records appeared complete and up to date.
(IV) PERMITTED EMISSION SOURCES:
Emission Emission Source Control Control System
Source ID Description System ID Description
Truck Mix Concrete Batch Plant(120 cubic yards per hour maximum
throughput)
SIL-181,SIL- two compartment cement I CD-RA200-18 bagfilter(2,148
182 flyash silo(side"A"has a square feet of filter
capacity of 109.4 tons and area)
side"B"has a capacity of
36.5 tons)
BAT-181 cement weigh batcher
TLP-181 truck loading point
BAT-182 aggregate weigh batcher NIA NIA
All equipment was viewed at the time of this inspection,but the facility was not operating.No additional
permitted sources were observed.
(V) SPECIFIC CONDITIONS AND LIMITATIONS:
A.1. Any air emission sources or control devices authorized to construct and operate above must be operated and
maintained in accordance with the provisions contained herein.The Permittee shall comply with applicable
Environmental Management Commission Regulations,including Title 15A North Carolina Administrative
Code(NCAC), Subchapter 21) .0202,2D .0515,2D .0521,21).0535,2D .0540,2D.0611 and 21).1806.
In Compliance.This facility appears to be in compliance with all applicable state and federal regulations.
A.2. PERMIT RENEWAL AND EMISSION INVENTORY REQUIREMENT-The Permittee,at least 90 days prior
'to the expiration date of this permit,shall request permit renewal by letter in accordance with 15A NCAC 2Q
.0304(d)and(f).Pursuant to 15A NCAC 2Q .0203(i).
In Compliance.Mr.Dutton was reminded of this requirement. A
A TTT/".T Tr r+� iTll/lT nTy'lli77D�r,��rTr A., L.. 1 G A rT(`1--1,'2D.05i5 ��pa.'-t:CL'1ateS fi'Om
A.J. r!iRTIC LATE CO 11\VL ERE01 11,1. 1L 1 -Al s required by I rA Nw. av
Miscellaneous Industrial Processes,"particulate matter emissions from the emission sources shall not exceed
allowable emission rates.
In Compliance.The facility uses a central baghouse to control particulate emissions.This system is an
effective control for particulate matter and should insure compliance with this requirement.
A.4. VISIBLE EMISSIONS CONTROL REQUIREMENT-As required by 15A NCAC 2D .0521 "Control of
Visible Emissions,"visible emissions from the emission sources,manufactured after July 1, 1971, shall not be
more than 20 percent opacity when averaged over a six-minute period,except that six-minute periods averaging
not more than 87 percent opacity may occur not more than once in any hour nor more than four times in any 24-
hour period.However, sources which must comply with 15A NCAC 2D .0524"New Source Performance
Standards" or.1110"National Emission Standards for Hazardous Air Pollutants" must comply with applicable
visible emissions requirements contained therein.
In Compliance.No visible emissions were observed at the time of the inspection coming from the stack;
however,the equipment was not in operation.

A.5. NOTIFICATION REQUIREMENT-As required by 15A NCAC 2D .0535,the Permittee of a source of excess
emissions that last for more than four hours and that results from a malfunction,a breakdown of process or
control equipment or any other abnormal conditions.Notify the Director by the next business day.
In Compliance.Mr.Dutton stated that there were no such occurrences.
A.6. FUGITIVE DUST CONTROL REQUIREMENT-As required by 15A NCAC 2D .0540"Particulates from
Fugitive Dust Emission Sources,"the Permittee shall not cause or allow fugitive dust emissions to cause or
contribute to substantive complaints or excess visible emissions beyond the property boundary.
In Compliance.No fugitive dust was observed within nor without the plant boundaries.No current complaints
are on file.
A.7. FABRIC FILTER REQUIREMENTS including cartridge filters,baghouses,and other dry filter particulate
collection devices-As required by 15A NCAC 2D .0611,particulate matter emissions shall be controlled as
described in the permitted equipment list.
a. Inspection and Maintenance Requirements-To comply with the provisions of this permit and ensure that
emissions do not exceed the regulatory limits,the Permittee shall perform,at a minimum,an annual(for
each 12-month period following the initial inspection)internal inspection of each bagfilter system.In
addition,the Permittee shall perform periodic inspections and maintenance as recommended by the
equipment manufacturer.
In Compliance.The bagfilter system is checked daily,weekly,and annually.The collector has a pressure
gauge;its readings are recorded in an onsite logbook.
b. Recordkeeping Requirements-The results of all inspections and any variance from manufacturer's
recommendations or from those given in this permit(when applicable)shall be investigated with
corrections made and dates of actions recorded in a logbook.Records of all maintenance activities shall be
recorded in the logbook.The logbook(in written or electronic format)shall be kept on-site and made
available to DAQ personnel upon request.
In Compliance.All maintenance and checks are entered into the site's logbook.Multiple years of logbooks
were available for review.
A.8. CONTROL AND PROHIBITION OF ODOROUS EMISSIONS-As required by 15A NCAC 2D .1806
"Control and Prohibition of Odorous Emissions" the Permittee shall not operate the facility without
implementing management practices or installing and operating odor control equipment sufficient to prevent
odorous emissions from the facility from causing or contributing to objectionable odors beyond the facility's
boundary.
In Compliance.No objectionable odors were detected either inside or outside property boundaries.No
complaints are on file.
(VI) EXEMPT EMISSIONS SOURCES:No exempt/insignificant sources were observed during the inspection.
(VII) 112r APPLICABILITY:This regulation is not applicable to this facility.
(VIII) STACK TEST REVIEW: There are no stack tests on record for this facility.
(IX) EMISSIONS INVENTORY REVIEW: Through-put was increased by 20.4% between CY 2012 and CY 2017, which is
reflected in emissions.
(X) COMPLIANCE HISTORY:No recent violations.
(XI) CONCLUSIONS AND RECOMMENDATIONS: At the time of this inspection, S. T. Wooten Corporation/Apex Plant—
Plant No. 18 appeared to be in compliance with all permitting requirements. I recommend the facility be re-inspected within
two years.
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