Hawaii Administrative Rules
Title 11 - DEPARTMENT OF HEALTH
Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS
Chapter 60.1 - AIR POLLUTION CONTROL
Subchapter 2 - GENERAL PROHIBITIONS
Section 11-60.1-32 - Visible emissions

Universal Citation: HI Admin Rules 11-60.1-32

Current through February, 2024

(a) Visible emission restrictions for stationary sources which commenced construction or were in operation before March 21, 1972, shall be as follows:

(1) No person shall cause or permit the emission of visible air pollutants of a density equal to or darker than forty percent opacity, except as provided in paragraph (2);

(2) During start-up, shutdown, or when a malfunction of equipment occurs, a person may discharge into the atmosphere from any single source of emission, for a period aggregating not more than six minutes in any sixty minutes, air pollutants of a density not darker than sixty percent opacity.

(b) Visible emission restrictions for stationary sources which commenced construction, modification, or relocation after March 20, 1972, shall be as follows:

(1) No person shall cause or permit the emission of visible air pollutants of a density equal to or darker than twenty percent opacity, except as provided in paragraph (2);

(2) During start-up, shutdown, or when a malfunction of equipment occurs, a person may discharge into the atmosphere from any single source of emission, for a period aggregating not more than six minutes in any sixty minutes, air pollutants of a density not darker than sixty percent opacity.

(c) Compliance with visible emission requirements shall be determined by evaluating opacity of emissions pursuant to 40 CFR Part 60, Appendix A, Method 9, other EPA approved methods, or any other credible evidence.

(d) Emissions of uncombined water, such as water vapor, are exempt from the provisions of subsections (a) and (b), and do not constitute a violation of this section.

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