| (A) if a control device meeting the requirements of subsection (g) of this section is used, §106.261 of this title (relating to Facilities (Emission Limitations)) or §106.262 of this title (assuming 100 feet), whichever is more stringent; (B) if a control device is not used, 10% of the values determined by subparagraph (A) of this paragraph; (C) the maximum allowable emission rate limit for any individual compound must be 0.04 lb/hr, regardless of the control method unless §106.261 or §106.262 of this title specify a higher emission rate. (2) For facilities with equal to or greater than 100 feet to the nearest off-site receptor, emissions of each individual compound from each facility must meet the emissions and distance requirements of §106.261 and §106.262 of this title. The maximum emission rate limit for any individual compound must be 0.04 lb/hr, regardless of the control method unless §106.261 or §106.262 of this title specify a higher emission rate. (3) If a control device is needed to meet the emission limits of this section, only a carbon adsorption system (CAS) that meets the requirements of subsection (g) of this section may be used. (4) Additional technical and administrative requirements for the remediation of dry cleaning sites may be found in Texas Health and Safety Code, §§374.001 - 374.253. (f) Requirements for all other sites and affected properties. For the remediation of sites not covered by subsections (d) or (e) of this section, the following requirements must be met. (1) The emission rates are limited to the following requirements. (A) Hourly emissions of each individual organic and inorganic compound from each facility (other than products of combustion) must meet the most stringent of the following: (i) §106.261 of this title; (ii) §106.262 of this title; or (iii) if not specifically listed in §106.262 of this title and is on the ESL list, effective October 1, 2003, with a short-term ESL for the compound of less than or equal to 100 micrograms per cubic meter (µg/m3 ) but greater than or equal to 2 µg/m 3 , emissions may not exceed 0.04 lb/hr. If the short-term ESL for the compound is less than 2 µg/m3 , emissions may not exceed 0.01 lb/hr. (B) Total annual emissions of each organic or inorganic compound are limited to five tons per year for each facility. (2) If a control device is needed to meet the emissions limits of this section, the device must satisfy the appropriate conditions listed under subsection (g) of this section. (3) All emission points and area sources associated with each facility must be located at least 100 feet from any off-site receptor. (g) Control devices. When a control device is used at a facility, the device must satisfy one of the following conditions. If a thermal control device is used, the products of fuel combustion (nitrogen oxides, sulfur dioxide, carbon monoxide, volatile organic compounds (VOC), or total inhalable particulate matter) are authorized if the facility is operated in compliance with this section, and all control devices must comply with applicable opacity restrictions in Chapter 111 of this title (relating to Control of Air Pollution from Visible Emissions and Particulate Matter). (1) Direct-flame combustion. The vapors may be burned in a direct-flame combustion device (incinerator, furnace, boiler, heater, or other enclosed direct-flame device) that meets the following requirements. (A) Design requirements. Each direct-flame combustion device must be automatically controlled to maintain a minimum temperature of 1,400 degrees Fahrenheit or higher in the combustion chamber (secondary chamber, if dual-chamber) and have a gas retention time of 0.5 second or greater. (B) Operational restrictions. The temperature of the device must be maintained at a minimum of 1,400 degrees Fahrenheit. (C) Compliance demonstrations. Continuous temperature monitors to record the temperature of the combustion chamber (secondary chamber, if dual-chamber) must be installed and maintained. Records of temperature data must be maintained. (2) Flare. The vapors may be burned in a flare that meets the following requirements. (A) Design requirements. (i) The flare must be equipped with a flare tip designed to provide good mixing with air, flame stability, and meet the most stringent of either §106.492 of this title (relating to Flares); or 40 Code of Federal Regulations (CFR) §60.18, General Control Device Requirements (as published in the October 17, 2000 issue of the Federal Register. (ii) The flare must be equipped with a continuously burning pilot or other automatic ignition system that assures gas ignition and provides immediate notification of appropriate personnel when the ignition system ceases to function. (B) Operational restrictions. Under no circumstances may liquids be burned in the flare. (C) Compliance demonstrations. Visible emissions must not be permitted for more than five minutes in any two-hour period. (3) Catalytic oxidizer. The vapors may be burned in a catalytic oxidizer that meets the following requirements. (A) Design requirements. The design destruction efficiency of the catalytic oxidizer must be at least 90% for the contaminants at the site. (B) Operational restrictions. The appropriate catalyst must be used depending on the type of contaminants in accordance with the manufacturer's guidelines. (C) Compliance demonstrations. An evaluation of oxidizer effectiveness must be made initially (within two hours of startup), and at least weekly, using a portable flame ionization detection (FID) or photo-ionization detector (PID) in conjunction with a flow meter to determine the quantity of carbon compounds in the inlet and outlet of the catalytic oxidizer and to demonstrate compliance with the emission rate limits of this section. The FID or PID instrument chosen must be capable of properly detecting the types of contaminants present. Records of oxidizer effectiveness must be maintained. (4) Internal combustion engine. The vapors may be burned in an internal combustion engine that meets the following requirements. (A) Design requirements. The design destruction efficiency of the internal combustion engine must be at least 99% for the contaminants at the site. (B) Operational restrictions. Chlorinated or sulfur compounds must not be burned in these facilities. (C) Compliance demonstrations. An evaluation of engine effectiveness must be made initially (within two hours of startup) and at least weekly, using a PID or FID in conjunction with a flow meter to determine the quantity of carbon compounds in the inlet gas stream and the engine exhaust, and to demonstrate compliance with the emission rate limits of this section. The FID or PID instrument chosen must be capable of properly detecting the types of contaminants present. Records of engine effectiveness must be maintained. (5) CAS. The vapors may be routed through a CAS consisting of at least two activated carbon canisters that are connected in a series. The system must meet the following additional requirements. (A) Design requirements. Prior to the use of a CAS at a site, there must be a demonstration that activated carbon is an appropriate choice for control of the contaminants at the site. (B) Operational restrictions. The CAS must be operated to minimize breakthrough and maintain compliance with the emission limits of this section. When the VOC breakthrough is detected in the outlet of the initial canister, the waste gas flow must be switched to the second canister immediately. Within four hours of detection of breakthrough, a fresh canister must be placed as the new final polishing canister. Sufficient fresh activated carbon canisters must be maintained at the site to ensure fresh polishing canisters are installed within four hours of detection of breakthrough. (C) Compliance demonstrations. (i) The CAS must be sampled initially (within two hours of startup) and periodically to determine breakthrough. Breakthrough is defined as a measured VOC concentration of 100 parts per million by volume (ppmv) in the outlet of the initial canister. The sampling point must be at the outlet of the initial canister, but before the inlet to the second or final polishing canister. Sampling must be performed while venting maximum emissions to the CAS (e.g., during loading of tank trucks, during tank filling, during process venting). The CAS must be monitored on a weekly basis or 20% of the design carbon replacement interval, whichever is less. (ii) An FID or PID instrument capable of properly detecting the types of contaminants present must be used for VOC sampling. Cont'd... |
