AQ_F_1400188_20190129_CMPL_InspRpt (4)

NORTH CAROLINA DIVISION OF Asheville Regional Office
AIR QUALITY Maymead Materials,Inc. -North 321 Stone Yard
NC Facility ID 1400188
Inspection Report County/FIPS: Caldwell/027
Date: 01/30/2019
Facility Data Permit Data
Maymead Materials,Inc. -North 321 Stone Yard Permit 08589/R05
3540 Blowing Rock Road Issued 1/12/2018
Lenoir,NC 28645 Expires 12/31/2025 —
Lat: 36d1.5000m Long: 81 d 34.6166m Class/Status Small
SIC: 1442/Construction Sand And Gravel Permit Status Active
NAILS: 212321 /Construction Sand and Gravel Mining Current Permit Application(s)None
Contact Data Program Applicability
Facility Contact Authorized Contact Technical Contact SIP
Wiley Roark Wiley Roark Wiley Roark NSPS: Subpart 000
President President President
[phone] [phone] [phone]
Compliance Data
Comments:
Inspection Date 01/29/2019
Inspector's Name Richard Morris
Inspector's Signature: 444AZOperating Status Operating
Compliance Code Compliance-inspection
Action Code FCE
Date of Signature: —34 On-Site Inspection Result Compliance
Total Actual emissions in TONS/YEAR:
TSP S02 NOX VOC CO PM10 *HAP
2016 --- --- ---
2011 0.0150 --- --- --- 0.0070 ---
Highest HAP Emitted inpounds)
Five Year Violation History:None
Date Letter Twe Rule Violated Violation Resolution Date
Performed Stack Tests since last FCE:None
Date Test Results Test Method(s) Source(s)Tested
Inspection Report:

1) Location: Maymead Materials, Inc. -North 321 Quarry is located at 3540 Blowing
Rock Blvd in Lenoir,NC, Caldwell County.
Directions: From Lenoir,travel north on Hwy 321 for about 4 miles towards Patterson
and continue north for another 3 to 4 miles past the Patterson turn-off(Hwy 268). The
facility is located on the right.
2) Facility Overview: Maymead Materials, Inc. -North 321 Quarry is a rock quarry
producing crushed stone for the construction industry. This facility is permitted under
Air Permit No. 08589R05, effective from January 12, 2018, until December 31, 2025.
Last compliance inspection conducted on January 3, 2018 by Richard Morris.
Safety: Hard Hat, safety shoes, hearing protection
Current throughputs: Employees, Hours of operation,production numbers
Not operating
Pre-inspection Conference: On January 29, 2019, Richard Morris arrived on site and
found the facility gate locked and no activity on site.
a) Upon arrival, I found the entrance gate to quarry locked and no activity within
sight. I did not observe any equipment on site.
b) This facility appears to be shut down and not operating.
c) On 01/30/2019 I called and talked with Sean Mackey with Maymead. Sean
stated they have just sold the quarry to Vulcan about two weeks ago and we
(DAQ) should be receiving notice within next couple of days. Sean also
verified there is no equipment on site.
Process Description: (from AP-42)
Rock and crushed stone products generally are loosened by drilling and blasting,then are
loaded by power shovel or front-end loader into large haul trucks that transport the material
to the processing operations. Techniques used for extraction vary with the nature and
location of the deposit. Processing operations may include crushing, screening, size
classification, material handling, and storage operations. All of these processes can be
significant sources of PM and PM-10 emissions if uncontrolled. Quarried stone normally
is delivered to the processing plant by truck and is dumped into a hoppered feeder,usually
a vibrating grizzly type, or onto screens. The feeder or screens separate large boulders
from finer rocks that do not require primary crushing,thus reducing the load to the primary
crusher. Jaw, impactor, or gyrator crushers are usually used for initial reduction. The
crusher product,normally 7.5 to 30 centimeters(3 to 12 inches)in diameter,and the grizzly
throughs (undersize material) are discharged onto a belt conveyor and usually are
conveyed to a surge pile for temporary storage, or are sold as coarse aggregates. The stone
from the surge pile is conveyed to a vibrating inclined screen called the scalping screen.
This unit separates oversized rock from the smaller stone. The undersize material from the

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scalping screen is considered to be a product stream and is transported to a storage pile and j
sold as base material. The stone that is too large to pass through the top deck of the
scalping screen is processed in the secondary crusher. Cone crushers are commonly used
for secondary crushing (although impact crushers are sometimes used), which typically
reduces material to about 2.5 to 10 centimeters (1 to 4 inches). The material (throughs)
from the second level of the screen bypasses the secondary crusher because it is
sufficiently small for the last crushing step. The output from the secondary crusher and the
throughs from the secondary screen are transported by conveyor to the tertiary circuit,
which includes a sizing screen and a tertiary crusher. Tertiary crushing is usually
performed using cone crushers or other types of impactor crushers. Oversize material from
the top deck of the sizing screen is fed to the tertiary crusher. The tertiary crusher output,
which is typically about 0.50 to 2.5 centimeters (3/16th to 1 inch), is returned to the sizing
screen. Various product streams with different size gradations are separated in the
screening operation. The products are conveyed or trucked directly to finished product
bins, open area stockpiles, or to other processing systems such as washing, air separators,
and screens and classifiers (for the production of manufactured sand).
Inspection:
a) The quarry appeared closed with no equipment on site.
If
b) This facility is apparently shut down.
3) Emission Source and Regulatory Review:
Permitted Sources are:
Emission Emission Source Control Control System
Source ID Description _ System ID Description
Non-Metallic Mineral Processing Plant,200 tons per hour rating,equipped with water suppression,with no
other control devices,including:
ES Crush Crushing Operations N/A N/A
- -- - -- -- -- -- - -
ES Screen Screen ng Operations N/A N/A
ES Convey Conveying Operations N/A j N/A
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Insignificant Sources: None
Stipulation Review:
A.3 2D.0501(c)—Equipment Reporting. Incompliance. This facility is
required by to keep and maintain on-site an equipment list and a plant E
diagram of all equipment covered under this permit. No equipment on site.
AA 2D.510—Particulate Control Requirement. In compliance. Shut down.
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A.5 This primary crusher is a 42-inch x 48-inch jaw crusher rated at 200 tons per
hour at a jaw setting of 6 inches, with no grizzly by-pass, per the
manufacturer's specifications as submitted. Any change from this crusher
definition, other than like-for-like, will require a permit application to be
submitted. The purpose of this stipulation is to characterize the primary
crusher and not limit production.
A.6 2D.521 —Visible Emissions. In compliance. Shut down.
A.8 2D.524—NSPS. In compliance. For the nonmetallic mineral processing
equipment(wet material processing operations, as defined in 60.671, are
not subject to this Subpart) including Conveying Operations (ID No.
ES-Convey), Crushing Operations (ID No. ES-Crush) and Screening
Operations (ID No. ES-Screen),the Permittee shall comply with all
applicable provisions, including the notification,testing, reporting,
recordkeeping, and monitoring requirements contained in Environmental
Management Commission Standard 15A NCAC 2D .0524 "New Source
Performance Standards" (NSPS) as promulgated in 40 CFR 60, Subpart
000, including Subpart A "General Provisions."
In compliance. Shut down.
A.10 2D.540—Fugitive dust Control. Incompliance. Shutdown.
Reporting requirements: There are not reporting requirements in the current permit.
4) Compliance History Review:
No document violations in past five years.
5) Stack Test Review: No stack tests have been conducted to date.
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 in
compliance with the Air Quality standards and regulations at the time of this
inspection.
/rem