AQ_F_2000012_20190730_CMPL_CAV-Rpt (4)

2.00OUIZ--CAV
NORTH CAROLINA DIVISION OF Asheville Regional Office
AIR QUALITY Southern Concrete Materials, Inc. -Andrews Plant
NC Facility ID 2000012
Compliance Assurance Visit Report County/FIPS: Cherokee/039
Date: 07/31/2019
Facility Data Permit Data
Southern Concrete Materials, Inc. -Andrews Plant Permit n/a
50 Whittaker Lane Issued n/a
Andrews,NC 28901 Expires n/a
Lat: 35d 11.8460m Long: 83d 50.0040m Class/Status Permit Exempt
SIC: 3273 /Ready-Mixed Concrete Permit Status Inactive
NAICS: 32732/Ready-Mix Concrete Manufacturing Current Permit Application(s)None
Contact Data Program Applicability
Facility Contact Authorized Contact Technical Contact SIP
Doug Hughes Jeff Lamm Jeff Lamm
Manager Vice Vice
[phone] President/Environmental President/Environmental
Affairs Affairs
[phone] [phone]
Compliance Data
Comments:
Inspection Date 07/30/2019
i / n Inspector's Name Richard Morris
Inspector's Signature: rO � n�l tiv��� Operating Status Operating
Compliance Code Compliance- inspection
Action Code FCE
Date of Signature: r On-Site Inspection Result Compliance
Total Actual emissions in'rONS/YEAR:
TSP SO2 NOX VOC CO PM10 *HAP
2010 0.0650 --- --- --- --- 0.0110 0.0030
2005 2.20 --- --- --- --- 0.6600 0.1896
* Highest HAP Emitted(npounds)
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
Compliance Assurance Visit Report:

1) Location: Southern Concrete Materials, Inc., Andrews Plant is located at 50
Whitaker Lane in Andrews,NC, Cherokee County.
Directions: Take U.S. 74, 19, 129, West of Andrews. Stay on the by Pass. At the first
red light in Andrews turn right onto U.S Business 19 (KFC is on the corner). Turn
right at the next red light onto Whitaker Lane. The plant is on the left
2) Facility Overview: Southern Concrete Materials, Inc., Andrews Plant is a batch
concrete plant producing concrete for commercial use. This facility is exempted from
permitting effective date July 22, 2016. Last compliance inspection conducted on
August 10, 2018 by Richard Morris.
Safety: Safety glasses, steel-toed shoes, hearing protection
Current throughputs: 2019
Hours: 40 hr/wk, 7-5
Employees: 6
Production(2016) 20,026 yds3
Production (2017) 20,132 yds3
Production(2018) 22,848 yds3
Pre-inspection Conference: On July 30, 2019 Richard Morris met with the
compliance contact, Doug Hughes, Plant Manager. Based on my conversation with
him, we discussed the following:
a) Verified the contacts based on FACFINDER printout. Doug Hughes is the
plant manager.
b) I was there by appointment to conduct a compliance assurance visit and
observed the cement silo being loaded. I checked their bagfilter logbooks and
found recent entries. They conduct weekly inspections with the last annual
inspection conducted on 05/23/2019.
Process Description: (AP-42)
Concrete is composed essentially of water, cement, sand (fine aggregate), and coarse
aggregate.. Coarse aggregate may consist of gravel, crushed stone, or iron blast furnace
slag. Some specialty aggregate products could be either heavyweight aggregate (of
barite, magnetite, limonite, ilmenite, iron, or steel) or lightweight aggregate (with sintered
clay, shale, slate, diatomaceous shale,perlite, vermiculite, slag, pumice, cinders, or
sintered fly ash). Concrete batching plants store, convey, measure, and discharge these
constituents into trucks for transport to a job site. In some cases, concrete is prepared at a
building construction site or for the manufacture of concrete products such as pipes and
prefabricated construction parts. The raw materials can be delivered to a plant by rail,
truck, or barge. The cement is transferred to elevated storage silos pneumatically or by
bucket elevator. The sand and coarse aggregate are transferred to elevated bins by front
end loader, clam shell crane, belt conveyor, or bucket elevator. From these elevated bins,

i
the constituents are fed by gravity or screw conveyor to weigh hoppers, which combine j
the proper amounts of each material. Truck mixed (transit mixed) concrete involves
approximately 75 percent of U. S. concrete batching plants. At these plants, sand,
aggregate, cement, and water are all gravity fed from the weigh hopper into the mixer
trucks. The concrete is mixed on the way to the site where the concrete is to be poured.
Central mix facilities (including shrink mixed) constitute the other one-fourth of the
industry. With these, concrete is mixed and then transferred to either an open bed dump
truck or an agitator truck for transport to the job site. Shrink mixed concrete is concrete
that is partially mixed at the central mix plant and then completely mixed in a truck mixer
on the way to the job site. Dry batching, with concrete mixed and hauled to the
construction site in dry form, is seldom, if ever, used.
Inspection:
The facility was operating this day. I observed several trucks loading and did not
observe any VE violations.
I observed the cement silo being loaded with no visible emissions. The loading
took approximately 40 minutes.
3) Emission Source and Regulatory Review:
Sources are:
Emission Emission Source Control Control System
Source ID Description System [D Description
one truck mix concrete batch plant(75 cubic yards per hour capacity)with central bag£dter control
including:
ES 1 flyash storage silo
(28 tons of flyash storage capacity)
cement storage silo
ES 2 one central bagfilter(2,148
(62 tons of cement storage capacity) CD-lA
- - - - - square feet of filter area)
ES-3 cement/flyash weigh hopper
(2 5 tons of holding capacity)
ES 4 one concrete truck load-out operation
_ _..—
II
Insignificant Sources:
Source ego ption Source of Source of Tithe V
Re ulation TAPS. Pollutants.
I-1 Sand and aggregate delivery to ground storage, 2Q .0102 No Yes
��
transfer to conveyor, and transfer to elevated storage (c)(2)(E)(i)
c (2 (EO _ No� Yes
I-2 Sand and aggregate weigh hopper
III

Regulation Review: (though not permitted, facility is still subject to these)
2D.0515 —Particulate control. In compliance. Cement and flyash silos are
controlled by bagfrlter.
2D.0521 —Visible Emissions. In compliance. I did not observe any visible
emissions.
2D.0540—Fugitive Dust Control. In compliance. 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. I
did not observe any fugitive dust emissions during my inspection.
Reporting requirements:
This facility is exempt from permitting.
4) Compliance History Review:
There have been no violations at this facility in the previous 5 years.
5) Stack Test Review:
Stack tests are not required at this facility.
6) 112R Status: Based on the facility's inventory, it was decided that they are not
subject to 112R reporting requirements
7) Comments and Compliance Statement:
Based on review of records and visual observations,this facility appeared to be
operating in compliance with the Air Quality standards and regulations at the time of
this inspection.
/rem