AQ_F_0000041_20210730_CMPL_CAV-Rpt (4)

NORTH CAROLINA DIVISION OF Asheville Regional Office
AIR QUALITY Southern Concrete Materials, Inc. - Burnsville
NC Facility ID 0000041
Compliance Assurance Visit(CAV)Report County/FIPS: Yancey/199
Date: 08/02/2021
Facility Data Permit Data
Southern Concrete Materials, Inc. -Burnsville Permit n/a
129 Depot Street Issued n/a
Burnsville,NC 28714 Expires n/a
Lat: 35d 54.9010m Long: 82d 16.7930m 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
Terryl Ponder Jeff Lamm Jeff Lamm
Plant Operator Vice Vice
[phone] President/Environmental President/Environmental
Affairs Affairs
[phone] [phone]
Compliance Data
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cvtrn�liw�ce wi-i-h ���(ic�hle r�nles. Inspection Date 07/30/2021
Inspector's Name Lisa Whitaker
Inspector's Signature: _ ) Operating Status Operating
it - Compliance Status Compliance- inspection
�� 1 Action Code FCE
Inspection Result Compliance
Date of Signature:Actotn5-t� 2, 2021
Total Actual emissions in TONS/YEAR:
TSP S02 NOX VOC CO PM10 * HAP
2012 2.57 --- --- --- --- 0.7700 0.2212
2007 0.5770 --- --- --- --- 0.2650 0.1586
* Highest 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
FACILITY REVIEW
1. DIRECTIONS: From Swannanoa, take I-40W to exit 53B to I-240 to I-26 N via Exit 4A toward
Woodfin/Weaverville. Take exit 9 toward Burnsville,travel to Burnsville and turn right onto
Depot Street. The facility is located on the left.

2. FACILITY DESCRIPTION: This facility is a truck-mix concrete batch plant rated at 80 cubic
yards per hour.
3. SAFETY NOTES: Safety Shoes, Hard Hat and Ear plugs. No unusual safety concerns were
observed.
4. VISIT SUMMARY: On July 30, 2021 I (Lisa Whitaker) conducted a compliance assurance visit
at the concrete batch plant. The facility was found to be tidy and orderly. No accumulations
were observed under the load-out. While on-site no trucks arrived or departed; Mr. Ponder
stated that 3 trucks were out making deliveries and no orders were awaiting delivery. Mr.
Ponder confirmed that the facility automatic rinse system was still functional. No fugitive dust
was observed off premise directly from this deposit, the potential exists for windy conditions to
create such.
On the day of the site visit, Mr. Ponder provided access to the bag filter records and searched for
production records but was not able to locate them. On August 2, I email Jeff Lamm, technical
contact, and requested production for 2020. Mr. Lamm provided the records the same day.
Mr. Ponder stated that the facility had received no complaints regarding dust or odor. The DAQ
- ARO office has also received no complaints.
5. SOURCES:
Emission Emission Source Control Control System
Source ID Description System ID Description
.........
one truck mix concrete batch plant(maximum concrete process rate of 40 cubic yards per hour)consisting of the
following:
ES-1 one cement silo(150 tons of cement CD-1 cement silo bagfilter
.storage capacity) (170 square feet of filter area)
ES-2 :one flyash silo CD-2 flyash silo bagfilter
(40 tons of flyash storage capacity) .(80 square feet of filter area)
ES-3 one cement weigh hopper CD-3 weigh hopper bagfilter
(1.5 tons holding capacity) (52 square feet of filter area)
ES-4 one concrete truck load-out operation N/A N/A
All sources and control devices were observed not in operation. According to Mr. Ponder,
facility staff are observing bag filters for dusting every day. Inspection and Maintenance records
document monthly internal checks of the fly-ash bagfilter. Mr. Ponder stated that the cement silo
bag filter is not inspected as frequently because it has an automatic shaker that is triggered by
pressure monitors.
6. COMPLIANCE HISTORY: A review of DAQ records revealed no history of violations or
deficiencies since 2006 when Angela Hopper, of this office, observed dusting bag filter on the
flyash silo.
PERMIT EXEMPT STATUS REVIEW
According to Mr. Lamm's email, this facility processed 14,621 cubic yards of concrete in 2020.
From the last emission inventory (2012),the truck loadout (TLO) reported a throughput of
12,235 cu yds and 0.68 tons of PM10, before controls. Using PM10 as a single pollutant check,
and based on this rate, the facility would be extremely unlikely to trigger permitting by
emissions:

5 tons PM 10 x 12,235 cu yd/0.68tons = 101,95 8.3 cu yds
Since the facility annual production remains well below the calculated threshold, this facility is
eligible to remain permit exempt.
1. According to the permit rescission request 0000041.16A review,Both (2012 and 2007)
Emissions Inventories indicates that the facility qualifies for exemption under NCAC 2Q
.0102(d). This rule states that any facility whose actual emissions of particulate matter (PM10),
sulfur dioxide, nitrogen oxides, volatile organic compounds, carbon monoxide, hazardous air
pollutants, and toxic air pollutants are each less than five tons per year and whose actual total
aggregate emissions are less than 10 tons per year shall not be required to obtain a permit
pursuant to 1 5A NCAC 02Q.0300.