Current through Register Vol. XLI, No. 50, December 13, 2024
Section 45-2-4 - Weight Emission Standards4.1. No person shall cause, suffer, allow or permit the discharge of particulate matter into the open air from all fuel burning units located at one plant, measured in terms of pounds per hour in excess of the amount determined as follows: 4.1.1. For Type 'a' fuel burning units, the product of 0.05 and the total design heat inputs for such units in million British Thermal Units (B.T.U.'s) per hour, provided however that no more than 1200 pounds per hour of particulate matter shall be discharged into the open air from all such units;4.1.2. For Type 'b' fuel burning units, the product of 0.09 and the total design heat inputs for such units in million B.T.U.'s per hour, provided however that no more than 600 pounds per hour of particulate matter shall be discharged into the open air from all such units; and4.1.3. For Type 'c' fuel burning units, in excess of the values listed in Table 45-2, provided however that no more than 300 pounds per hour of particulate matter shall be discharged into the open air from all such units. 4.1.3.a. For values between any two corresponding consecutive values listed in Table 45-2, linear interpolation is to be used for both columns.4.2. Subject to the provisions of this rule, allowable emission rates for individual stacks shall be determined by the owner and/or operator and registered with the Secretary at the request of, and on forms provided by, the Secretary. Such rates shall be subject to review and approval by the Secretary.4.2.1. The approved set of individual stack allowable emission rates shall become an official part of the compliance schedule and/or any permits concerning such source(s) and shall not be changed without the prior written approval of the Secretary.4.3. If the number of similar fuel burning units located at one plant, each of which is meeting the requirements of this rule, is expanded by the addition of a new unit(s), the total allowable emission rate for the new unit(s) shall be determined by the following formula. However, the maximum allowable emission rates given in subsection 4.1. are not to be exceeded: Click Here To View Image
Where:
Re is the total allowable emission rate in pounds per hour for the new fuel burning unit(s);
Het is the total design heat input in million B.T.U.'s per hour of the existing and new similar units;
Ret is the total allowable emission rate in pounds per hour corresponding to Het; and
He is the total design heat input in million B.T.U.'s per hour for the new fuel burning unit(s).
4.4. The addition of sulfur oxides to a combustion unit exit gas stream for the purpose of improving emissions control equipment efficiency shall be reviewed by the Secretary. No person shall cause, suffer, allow or permit the addition of sulfur oxides as described above unless written approval for such addition is provided by the Secretary.4.5. The provisions of subsection 4.4 shall not apply to combustion units in operation on or before September 1, 1974.