AQ_F_1900023_20180828_ST_RvwMemo

DIVISION OF AIR QUALITY
August 28, 2018
MEMORANDUM
To: Ray Stewart, P.E.,Raleigh Regional Office
From: Shannon Vogel, Stationary Source Compliance Branch,/��'vt�U.
Subject: S. T. Wooten—Pittsboro Asphalt Plant
Pittsboro, Chatham County,North Carolina
Facility ID 1900023, Permit No. 01887R21
Total Particulate Matter and Visible Emissions Testing of
Asphalt Plant ES-14ES 1 Performed May 2 and 3, 2018 by
TRC Environmental Corporation
Tracking No. 2018-082st
TRC performed total particulate matter(PM) emissions testing in accordance with EPA Methods
1 through 5/202. The test results demonstrate compliance with the applicable emissions
standards for asphalt plant ES-14ES1. The tested source is drum-mix hot mix asphalt plant, 250
tons per hour(tph)production capacity, consisting of natural gas/No. 2 fuel oil/recycled No. 2
fuel oil/No. 4 fuel oil/recycled No. 4 fuel oil-fired rotary drum aggregate dryer/mixer ES-14ES1
controlled by horizontal cyclone CD-HC 1 in series with bagfilter CD-BH 1.
40 CFR 60 Subpart I Standards of Performance for Hot Mix Asphalt Facilities and 15A NCAC
2D .0506 Particulates From Hot Mix Asphalt Plants apply to ES-14ES 1. 60 Subpart I limits
filterable PM to 90 milligrams per dry standard cubic meter(mg/dscm). 2D .0506 limits total
PM based on actual production rate. TRC reported the average asphalt rate during testing was
212.3 tph. The 2D .0506 total PM emission limit is 51.6 pounds per hour(lb/hr). The test results
are tabulated below.
Pollutant Test Results Emission Limit Standard Compliance
Filterable PM 2.0 m dscm 90 m dscm 60 Subpart I Yes
0.13 lb/hr --- --- ---
Condensible PM 0.84 lb/hr --- ---
Total PM 0.971b/hr 51.6 lb/hr 2D .0506 Yes
Process Rate 212.3 tph 250 tph --- ---
Compliance was demonstrated. If you have any questions regarding the results of this review,
please contact me at 919-707-8416 or shannon.vogel,a ncdenr ov.
cc: Central Files, Chatham County
IBEAM Documents, 1900023