**Oil may be analytically separated into olar and non-

polar components

.

If such separation is done, neither

of the com onents ma exceed 15 m /1

(i .e ., 15 m /1

po ar materials and 15 mg 1 non-polar materials .

Com-

pliance with this numerical standard shall be determined

on the basis of 24 hour composite samples,

averaged over

any monthly period; provided, however, that no single 24

hour composite shall be greater than 2 times the numeri-

cal standard and no grab sample shall be greater than 5

times the numerical standard ."

IT IS SO ORDERED

.

I, Christan L. Moffett, Clerk of the Illinois Pollution Control

Board, hereby certify the above Order was adopted on the Q3 RO

day

of

1977 by a vote of

'sl

_ D

Christan L. Mof

-47

Clerk

Illinois Pollution ontrol Board

ILLINOIS POLLUTION CONTROL BOARD

November 23, 1977

IN THE MATTER OF

:

)

WATER QUALITY AMENDMENTS,

)

R74-1, -8, -9

HEXANE SOLUBLES

)

ORDER OF THE BOARD (by Mr . Goodman)

:

Rule 408(a), Chapter 3: Water Pollution, of this Board's

Rules and Regulations, insofar as it regulates oil (hexane solu-

bles or equivalent) shall be amended as follows

:

"Constituent

Storet Number

Concentration

(mg/1)

ei1-~kexane--

99559

9:579

equivalent)

Oil,

fats and

00550,

00556

greases

00560

15.00**