APPENDIX L-EXAMPLE REGULATIONS FOR PREVENTION OF AIR POLLUTION EMERGENCY EPISODES

The example regulations presented herein reflect generally recognized ways of preventing air pollution from reaching levels that would cause imminent and substantial endangerment to the health of persons. States are required to have emergency episode plans for Priority I regions, but they are not required to adopt the regulations presented herein.

1.0 Air pollution emergency. This regulation is designed to prevent the excessive buildup of air pollutants during air pollution episodes, thereby preventing the occurrence of an emergency due to the effects of these pollutants on the health of persons.

1.1 Episode criteria. Conditions justifying the proclamation of an air pollution alert, air pollution warning, or air pollution emergency shall be deemed to exist whenever the Director determines that the accumulation of air pollutants in any place is attaining or has attained levels which could, if such levels are sustained or exceeded, lead to a substantial threat to the health of persons. In making this determination, the Director will be guided by the following criteria:

(a) "Air Pollution Forecast": An internal watch by the Department of Air Pollution Control shall be actuated by a National Weather Service advisory that Atmospheric Stagnation Advisory is in effect or the equivalent local forecast of stagnant atmospheric condition.

(b) "Alert": The Alert level is that concentration of pollutants at which first stage control actions is to begin. An Alert will be declared when any one of the following levels is reached at any monitoring site: SO-800 μg/m3 (0.3 p.p.m.), 24-hour average.

Particulate-3.0 COHS or 375 μg/m3, 24hour average.

SO2 and particulate combined-product of SO2 p.p.m., 24-hour average, and COHS equal to 0.2 or product of SOμg/m3, 24-hour average, and particulate ug./m3, 24-hour average equal to 65 × 103. CO-17 mg./m3 (15 p.p.m.), 8-hour average. Oxidant (O3)-200 μg/m3 (0.1 p.p.m.)1-hour average.

NO2-1130 ug/m3 (0.6 p.p.m.), 1-hour average, 282 μg/m3 (0.15 p.p.m.), 24hour average.

and meteorological conditions are such the pollutant concentrations can be expected to remain at the above levels for twelve (12) or more hours or increase unless control actions are taken.

(c) "Warning": The warning level indicates that air quality is continuing to degrade and that additional control actions are

necessary. A warning will be declared when any one of the following levels is reached at any monitoring site:

SO-1,600

μg./m.3 (0.6 p.p.m.), 24-hour

average. Particulate 5.0 COH's or 625 μg./m.3, 24hour average.

SO and particulate combined-product of SO, p.p.m., 24-hour average and COH's equal to 0.8 or product of SO2 μg./m.3, 24-hour average and particulate ug./m.3, 24-hour average equal to 261 × 103.

CO-34 mg./m.3 (30 p.p.m.), 8-hour average. Oxidant (Os)-800 μg./m.3 (0.4 p.p.m.), 1hour average.

NO 2,260 μg./m.3 (1.2 p.p.m.)-1-hour average; 565 μg./m.3 (0.3 p.p.m.), 24-hour average.

and meteorological conditions are such that pollutant concentrations can be expected to remain at the above levels for twelve (12) or more hours or increase unless control actions are taken.

(d) "Emergency”: The emergency level indicates that air quality is continuing to degrade toward a level of significant harm to the health of persons and that the most stringent control actions are necessary. An emergency will be declared when any one of the following levels is reached at any monitoring site:

SO-2,100 μg./m.3 (0.8 p.p.m.), 24-hour average.

Particulate-7.0 COH's or 875 μg./m.3, 24hour average.

SO, and particulate combined--product of SO2 p.p.m., 24-hour average and COH's equal to 1.2 or product of SO2 μg./m.3, 24-hour average and particulate μg./m.3, 24-hour average equal to 393 X 103. CO-46 mg./m.3 (40 p.p.m.), 8-hour average. Oxidant (O3)-1,200 μg./m.3 (0.6 p.p.m.), 1-hour average.

NO 3,000 uμg./m.3 (1.6 p.p.m.), 1-hour average; 750 μg./m.3 (0.4 p.p.m.), 24-hour average.

and meteorological conditions are such that this condition can be expected to remain at the above levels for twelve (12) or more hours.

(e) "Termination": Once declared, any status reached by application of these criteria will remain in effect until the criteria for that level are no longer met. At such time, the next lower status will be assumed.

1.2 Emission reduction plans. (a) Air Pollution Alert-When the Director declares an Air Pollution Alert, any person responsible for the operation of a source of air pollutants as set forth in Table I shall take all Air Pollution Alert actions as required for such source of air pollutants and shall put into effect the preplanned abatement strategy for an Air Pollution Alert.

(b) Air Pollution Warning-When the Director declares an Air Pollution Warning, any

person responsible for the operation of a source of air pollutants as set forth in Table II shall take all Air Pollution Warning actions as required for such source of air pollutants and shall put into effect the preplanned abatement strategy for an Air Pollution Warning.

(c) Air Pollution Emergency-When the Director declares an Air Pollution Emergency, any person responsible for the operation of a source of air pollutants as described in Table III shall take all Air Pollution Emergency actions as required for such source of air pollutants and shall put into effect the preplanned abatement strategy for an Air Pollution Emergency.

(d) When the Director determines that a specified criteria level has been reached at one or more monitoring sites solely because of emissions from a limited number of sources, he shall notify such source(s) that the preplanned abatement strategies of Tables, I, II, and III or the standby plans are required, insofar as it applies to such source(s), and shall be put into effect until the criteria of the specified level are no longer met.

strategies,

1.3 Preplanned abatement (a) Any person responsible for the operation of a source of air pollutants as set forth in Tables I-III shall prepare standby plans for reducing the emission of air pollutants during periods of an Air Pollution Alert, Air Pollution Warning, and Air Pollution Emergency. Standby plans shall be designed to reduce or eliminate emissions of air pollutants in accordance with the objectives set forth in Tables I-III which are made a part of this section.

(b) Any person responsible for the operation of a source of air pollutants not set forth under section 1.3 (a) shall, when requested by the Director in writing, prepare standby plans for reducing the emission of air pollutants during periods of an Air Pollution Alert, Air Pollution Warning, and Air Pollution Emergency. Standby plans shall be designed to reduce or eliminate emissions of air pollutants in accordance with the objectives set forth in Tables I-III.

(c) Standby plans as required under sections 1.3(a) and 1.3(b) shall be in writing and identify the sources of air pollutants, the approximate amount of reduction of pollutants and a brief description of the manner in which the reduction will be achieved during an Air Pollution Alert, Air Pollution Warning, and Air Pollution Emergency.

(d) During a condition of Air Pollution Alert, Air Pollution Warning, and Air Pollution Emergency, standby plans as required by this section shall be made available on the premises to any person authorized to enforce the provisions of applicable rules and regulations.

(e) Standby plans as required by this section shall be submitted to the Director upon request within thirty (30) days of the receipt of such request; such standby plans shall be subject to review and approval by the Director. If, in the opinion of the Director, a standby plan does not effectively carry out the objectives as set forth in Table I-III, the Director may disapprove it, state his reason for disapproval and order the preparation of an amended standby plan within the time period specified in the order.

Source of air pollution

1. Coal or oil-fired electric power generating facilities.

Control action

a. Substantial reduction by utilization of fuels having low ash and sulfur content. b. Maximum utilization of mid-day (12 noon to 4 p.m.) atmospheric turbulence for boiler lancing and soot blowing.

c. Substantial reduction by diverting electric power generation to facilities outside of Alert Area.