AQ_F_1300101_20200515_ST_RvwMemo (4)

DIVISION OF AIR QUALITY
May 15, 2020
MEMORANDUM
To: Bruce Ingle, Mooresville Regional Office
From: James E. Hammond, Stationary Source Compliance Branch
Subject: Blythe Brothers Asphalt Plant, LLC
Concord, Cabarrus County, North Carolina
Facility ID 1300101, Permit No. 07449R11
Total Particulate Matter and Visible Emissions Testing of Asphalt Plant ES-1
Performed June 20, 2019 by Integrity Air Monitoring, Inc.
DAQ Tracking No. 2019-158st
The Stationary Source Compliance Branch has reviewed the subject emissions testing. The
results are acceptable and demonstrate that ES-1 was operating in compliance with the
applicable particulate matter (PM) and visible emissions (VE) limits during the testing period.
ES-1 is a counter-flow drum mix type, natural gas/No. 2 fuel oil/recycled No. 2 fuel oil/recycled
No. 4 fuel oil-fired hot mix asphalt plant controlled by cyclone CD-1 installed in series with
bagfilter CD-2. The maximum permitted capacity is 350 tons per hour (tph). 40 CFR 60
Subpart I Standards of Performance for Hot Mix Asphalt Facilities, 15A NCAC 2D .0506
Particulates From Hot Mix Asphalt Plants and 15A NCAC 2D .0521 Control of Visible Emissions
apply to ES-1. 60 Subpart I limits filterable PM to 90 milligrams per dry standard cubic meter
(mg/dscm) and limits VE to 20% opacity. 2D .0506 limits total PM based on actual production
rate. The test results and emissions limits are tabulated below.
Pollutant Results Emission Limit Standard Compliance
18.23 mg/dscm 90 mg/dscm 60 Subpart I Indicated
Filterable PM 0.0081 r/dscf 0.04 r/dscf
1.22 I b/h r --- --- ---
Condensible PM 0.29 Ib/hr --- --- ---
Total PM 1.51 Ib/hr 60.0 Ib/hr 2D .0506 Indicated
Visible Emissions 0.8% 20% Opacity 60 Subpart I Indicated
Highest 6-min average
The average production rate during testing reported by Blythe personnel was 337 tons per hour.
The tested production rate is acceptable. For production rates >_300 tons/hr the total PM limit is
60.0 lb/hr. The test results demonstrate compliance with the applicable standards. If you have
any questions regarding the results of this review, please contact me at [phone] or
[e-mail].
cc: Central Files, Cabarrus County
IBEAM Documents — 1300101