AQ_F_1900077_20170120_ST_RvwMemo

DIVISION OF AIR QUALITY
January 20, 2017
MEMORANDUM
To: Patrick Butler,P.E.,Raleigh Regional Office Supervisor
Through: Michael Pjetraj,P.E. Stationary Source Compliance Branch Supervis 4r
From: Shannon Vogel, Stationary Source Compliance Branch%
Subject: Triangle Brick Company—Merry Oaks, "`
Merry Oaks, Chatham County,North Carolina
Facility ID 1900077,Permit No. 06897T10
Filterable Particulate Matter,Hydrogen Chloride,and Hydrogen Fluoride Testing of
Kiln K-3 Performed September 12, 2016 by Environmental Resource Management(ERM)
Tracking No. 2016-204st
ERM performed EPA Method 5 for filterable particulate matter(PM)and EPA 26A for hydrogen chloride
(HCl)and hydrogen fluoride(HF)emissions at brick kiln K-3. The results are acceptable as discussed
below. The filterable PM results demonstrate an exceedance of the 2D .1109 case-by-case MACT limit.
Emission Source ID K-3 is a natural gas/No. 2 fuel oil/No. 6 fuel oil-fired brick tunnel kiln controlled by
CD-K3 dry lime cascade adsorber unit. The maximum permitted brick production rate is 29 tons per hour
(tph). Triangle Brick reported an average production rate of 25.17 tph during testing. The test results are
tabulated below. The pounds per day(lb/day)results are based on 24 hours per day.
The following regulations apply to Kiln K-3:
15 NCAC 2D .0515 Particulates From Miscellaneous Industrial Processes which limits PM in pounds
per hour(lb/hr)based on actual production rate.
15A NCAC 2D .1109 1126) Case-by-Case Maximum Achievable Control Technology(MACT) which
limits the HCl-equivalent to 21.19 lb/hr(K-1,K-2 and K-3 combined)and filterable PM to 0.17
pounds per ton of brick produced(lb/ton).
15A NCAC 2D .1100 Control of Toxic Air Pollutants which limits HCl emissions to 115.441b/hr and
HF emissions to 878.11 lb/day and 41.21 lb/hr.
Pollutant Test Results Emission Limit Standard Compliance
10.60 lb/hr 35.6 lb/hr 2D .0515 Yes
Filterable PM 0.42 lb/ton 0.17 lb/ton 2D .1109 No
Case-by-Case MACT
HCl 0.060 lb/hr 115.44 lb/hr 2D .1100 Yes
HF 0.352 lb/hr 41.21 lb/hr 2D .1100 Yes
8.4 lb/day 878.11 lb/day 2D .1100 Yes
HCl-Equivalent 0.563 lb/hr 21.19 lb/hr 2D .1109 yes
Case-by-Case MACT
The test results demonstrated an exceedance of the 2D .1109 case-by-case MACT permitted PM emission
limit. The test results indicated compliance with the other listed emissions limits. If you have any
questions,please contact me at shannon.vogel@nedenngov or 919-707-8416.
cc: Central Files, Chatham County IBEAM Documents- 1900077