mg/off-kg (lb/million off-lbs) of

aluminum forged

0.019 0.010 0.051 0.035

0.008 0.004 0.021

Chromium
Cyanide
Zinc
TTO
oil and grease (alternate

monitoring parameter)

Chromium
Cyanide
Zinc
TTO
Oil and grease (alternate

SUBPART D

from the core of the drawing with neat oils subcategory and the ancillary operations.

Cleaning or Etching Rinse

§ 467.51 Specialized definitions.

For the purpose of this subpart:

(a) The “core” of the drawing with neat oils subcategory shall include drawing using neat oils, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging.

(b) The term “ancillary operation" shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operation shall include continuous rod casting, solution heat treatment, and cleaning or etching.

0.59

13.91

13.91

$ 467.52 Effluent limitations rep

resenting the degree of effluent reduction attainable by the applica. tion of best practicable control

technology currently available. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:

SUBPART E

Core

$ 467.47 Effluent limitations

representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. (Reserved]

Subpart E-Drawing With Neat Oils

Subcategory $ 467.50 Applicability; description of

the drawing with neat oils sub

category. This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works

Maximum for any 1

day

Maximum for monthly average

Pollutant or pollutant property

Maximum for monthly