ILLINOIS POLLUTION CONTROL BOARD

April

8,

1976

IN

THE

MATTER

OF

INQUIRY

HEARINGS

ON

INTERMITTENT CONTROL SYSTEMS

)

R76-9

FOR THE CONTROL OF SO2 EMISSIONS

ORDER OF THE BOARD

(by Mr. Goodman):

On September

26,

1975,

an amendment to section 10 of the En-

vironmental Protection Act mandating the implementation of Inter-

mittent Control Systems

(ICS)

became effective

(Ill.

Rev.

Stat.

1975, Chapter 111 1/2 §1010(h):

(h)

The Board

shall adopt regulations prescribing

the conditions under which existing fuel combustion emis-

sion sources may use intermittent control systems

in lieu

of compliance with sulfur dioxide emission standards.

Such

sources upon submission of proof that the use

of

a supple-

mental control system will not contribute to a violation of

ambient air quality standards for sulfur dioxide, may utilize

intermittent control systems,

under such conditions

as the

Board deems proper, until December

31,

1985.

Any source

utilizing intermittent control systems pursuant to such Board

regulations shall be

in compliance with sulfur dioxide

emission standards not later than December

31,

1985.

Before implementation of such ICS regulations,

it seems desir-

able to hold several

inquiry hearings in order to provide the Board

with information including but not limited to the following:

1.

The legal limits imposed upon Illinois by the Federal

Clean Air Act on non—degradation insofar as sulfur dioxide

regulations are concerned.

2.

The most recent developments

in ICS methodology.

3.

The effect ICS would have on ambient air quality and

how that effect may be minimized.

4.

The correlation,

if any, between ICS and sulfate levels,

acid rain, mercury and ozone

(photochernical oxidants)

—

igc

---

—2—

5.

The economic implications of ICS.

The Board welcomes public participation in these inquiry hear-

ings and asks that persons interested in testifying make arrange-

ments with the Hearing Officer.

IT IS SO ORDERED.

I,

Christan L.

Moffett,

Clerk of the Illinois Pollutio~iControl

Board, h

eby certify the above Order was adopted on the

~1

day

of

,

1976 by

a vote of

~

Illinois Pollution C

ol Board

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