R307. Environmental Quality, Air Quality.R307-431. Emission Unit Exemptions From Obtaining an Approval Order Under Section R307-401-8: Permit by Rule for Emission Units.
R307-431-1. Purpose.
This rule lists emission units that are exempt from the requirement to obtain an Approval Order found in Sections R307-401-5 through R307-401-8.
R307-431-2. Definitions.
"Boiler" means the same as defined in Section R307-316-3.
"Confined Blasting" means the same as defined in Section R307-306-2.
"Controlled Landfill" means the same as defined in 40 CFR 62.16730.
"Emergency Engine" means emergency stationary reciprocating internal combustion engine (RICE) as defined in 40 CFR 63.6675.
"Hydroblasting" means the same as defined in Section R307-306-2.
"Major Source" means the same as defined in Section R307-101-2.
"Municipal Solid Waste Landfill" means the same as defined in 40 CFR 62.16730.
"Process Heater" means the same as defined in Section R307-316-3.
"Unconfined Blasting" means the same as defined in Section R307-306-2.
"Wet Abrasive Blasting" means the same as defined in Section R307-306-2.
"Vapor Mitigation System," or VMS, is a sub-slab system whose primary purpose is mitigating vapor intrusion into an occupied, or occupiable, structure and is not intended or designed for the remediation of contaminated soil or groundwater. This definition includes both active and passive systems. Passive systems consist of a vapor barrier either below or above the slab of a structure and a venting system installed under a structure to divert vapor from beneath the structure to the sides or roofline of a structure. Active systems are similar to passive systems but incorporate a blower or fan to actively extract air from beneath the structure.
R307-431-3. Applicability.
Rule R307-431 applies to the emission units listed in this rule. This rule does not exempt emission units from complying with other applicable state and federal rules and requirements.
R307-431-4. Natural Gas-Fired Boilers and Heaters.
An owner or operator of a boiler, process heater, water heater, air heater, forced-air furnace, or steam generator is not required to obtain an Approval Order under Section R307-401-8 if the emission unit meets the requirements of Subsections R307-431-4(1), (2), and (3):
(1) Rated capacity of the emission unit is less than five million BTU per hour;
(2) No other fuel than natural gas or LPG or other mixed gas that meets the standards of gas distributed by a utility in accordance with the rules of the Public Service Commission of the State of Utah is used; and
(3) No other emissions than combustion products are emitted from the emission unit.
R307-431-5. Comfort Heating Equipment.
An owner or operator of comfort heating equipment such as boilers, water heaters, air heaters, and steam generators is not required to obtain an Approval Order under Section R307-401-8 if the emission unit meets the requirements of Subsections R307-431-5(1) and (2):
(1) Rated capacity of the emission unit is less than one million BTU per hour; and
(2) No other fuel than fuel oil numbers 1 -- 6 is used.
R307-431-6. Emergency Heating Equipment.
An owner or operator of emergency heating equipment is not required to obtain an Approval Order under Section R307-401-8 if the emission unit meets the requirements of Subsections R307-431-6(1) and (2):
(1) Rated capacity of the emission unit is less than 50,000 BTU per hour; and
(2) No other fuel than coal or wood is used.
R307-431-7. Exhaust Systems.
An owner or operator of an exhaust system for controlling steam and heat that does not contain combustion products is not required to obtain an Approval Order under Section R307-401-8.
R307-431-8. Vapor Mitigation Systems.
An owner or operator of a Vapor Mitigation System is not required to obtain an Approval Order under Section R307-401-8.
R307-431-9. Fuel Storage Tanks.
