SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT

RULE 1704 - EXEMPTIONS
(Adopted October 7, 1988)(Amended January 6, 1989)(Amended August 13, 1999)

Upon approval by the Executive Officer, an exemption from specified subparagraphs of Rule 1703 shall be allowed, provided that BACT is utilized, for subject permit units which meet any of the following requirements:

(a) Rule 1703(a)(3) shall not apply to a major stationary source or major modification if:

(1) The source or modification is used exclusively for providing essential public services including but not limited to schools, hospitals, or police and fire-fighting facilities.

(2) The modification is air pollution control equipment which is to be constructed solely to reduce the issuance of air pollutants.

(3) The change is exclusively a conversion to an alternative fuel or raw material provided it is:

(A) By reason of an order under Sections 2(a) and (b) of the Energy Supply and Environmental Coordination Act of 1974; or

(B) By reason of a natural gas curtailment plan pursuant to the Federal Power Act; or

(C) By reason of an order or rule under the Clean Air Act; or

(D) At a steam generating unit to the extent that the fuel is generated from municipal solid waste.

(4) The source or modification is a cogeneration project, resource recovery project, or qualifying facility, as defined in California Health and Safety Code Sections 39019.5, 39019.6, 39047.5, 39050.5, and shall be exempt only to the extent required by State law, including Health and Safety Code Sections 42314, 42314.5, 41605 and 41605.5.

(b) The Executive Officer may exempt a stationary source or modification from Rule 1703(a)(3)(D) with respect to monitoring for a particular contaminant if the emission increase from the new source or net emission increase from the modification would cause, in any area, air quality impacts less than the following amounts:

  (Micrograms Per Cubic Meter)
Carbon Monoxide : 8-hr average

575

PM10: 24-hr average

10

Sulfur Dioxide: 24-hr average

13

Lead: 3-month average

0.1

Mercury: 24-hr average

0.25

Beryllium: 24-hr average

0.001

Fluorides: 24-hr average

0.25

Vinyl Chlorides: 24-hr average

15

Total Reduced Sulfur: 1-hr average

10

Hydrogen Sulfide: 1-hr average

0.2

Reduced Sulfur Compounds: 1-hr average

10

Nitrogen Dioxide: annual average

14