MOJAVE DESERT AIR QUALITY MANAGEMENT DISTRICT
RULE 476 - STEAM GENERATING EQUIPMENT
(Adopted: 5/7/76; Amended: 10/8/76; Readopted: 7/25/77; Amended: 3/16/81;
Amended: 1/22/96; Amended: 10/28/96; Amended: 8/25/97)
(a) The purpose of this rule is to limit emissions of oxides of nitrogen (NOx) and Particulate Matter from non-Mobile, Steam Generating Equipment.
(a) The rule applies to non-Mobile Steam Generating Equipment having a maximum heat input rate of:
(i) more than 50 million BTU (MMBtu) but no greater than 500 MMBtu per hour, for which a permit to build, erect, install or expand was required after May 7, 1976; or
(ii) more than 500 MMBtu per hour, regardless of whether new or existing.
(b) The NOx emission limits of this rule shall not apply to Steam Generating Equipment which is subject to a NOx emission limit in District Rule 1157 or 1158.
For the purposes of this rule, the following definitions shall apply:
(a) NOx, expressed as nitrogen dioxide (NO2), referenced at dry stack-gas conditions and 3.0 percent by volume stack-gas oxygen, in excess of:
(i) 125 parts per million by volume (ppmv), when operated on gaseous fuel;
(ii) 225 ppmv, when operated on liquid or solid fuel;or
(iii) the heat input weighted average of the limits specified in (C)(1)(a)(i) and (ii) above, when operated on combinations of both gaseous and liquid and/or solid fuels.
(iv) Emission concentrations shall be corrected to 3.00 percent oxygen as follows:
(b) Particulate matter that exceeds both of the following two limits:
(i) 5 kilograms (11 pounds) per hour; and
(ii) 23 milligrams per cubic meter (0.01 gr/SCF)
(a) which has a Rated Heat Input of 50 MMBtu per hour or less; and/or
(b) that continues to operate less than 200 hours within any continuous four consecutive calendar quarter period.
(E) Monitoring and Records
(a) All Steam Generating Equipment subject to the requirements of subsection (C)(1)(a) shall demonstrate compliance with the NOx emission limits through emission compliance testing not less than once every 12 months. This 12 month period shall be measured based upon the permit renewal date.
(b) Steam Generating Equipment shall demonstrate compliance with the Particulate Matter emission limits through emission compliance testing not less than once every 12 months, unless the equipment is fired exclusively on natural gas. Steam Generating Equipment fired exclusively on natural gas shall demonstrate compliance with the Particulate Matter emission limits not less than once every 60 months. If the Steam Generating Equipment is fired on any fuel other than natural gas within the 60 month period, compliance with the Particulate matter emission limits shall be demonstrated when firing natural gas and when firing the fuel other than natural gas not less than once every twelve months.
(a) Compliance testing required by this rule shall follow the administrative procedures outlined in the District's Compliance Test Procedural Manual. All emission determinations shall be made as stipulated in the test protocol accepted by the District.
(b) All emission concentrations and emission rates shall be based upon hourly averages.
(c) The owners or operators of Steam Generating Equipment subject to this rule shall submit all required compliance test reports to the District.
(d) Any owner or operator of Steam Generating Equipment subject to the NOx limits of this Rule shall submit a Monitoring Plan to the District for approval. Upon approval of the Monitoring Plan, the District will notify the owner or operator in writing. The owner or operator shall keep current and on site for a minimum of two years such records as are specified in the District-approved Monitoring Plan. Records shall be updated routinely and made available to the District, CARB and USEPA upon request.
(e) Any owner or operator of Electric Power Generating Equipment subject to the Particulate Matter limits of this Rule shall keep records current and on site for a minimum of two years.
(F) Test Methods
(a) USEPA Method 7, 7A, 7C, or 7E.
(a) USEPA Method 5, 5B, 5D, or 5F.
[SIP: Submitted as amended 08/25/97 on _______; Submitted as amended 10/28/96 on 11/1/96; Approved 09/08/78, 43 FR 40011, 40 CFR 52.220(c)(39)(ii)(C); Approved 06/14/78, 43 FR 25684, 40 CFR 52.220(c)(37)(i)(A).]