40 CFR § 424.25 - Standards of performance for new sources.

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§ 424.25 Standards of performance for new sources.

The following standards of performance establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a new source subject to the provisions of this subpart:

Effluent characteristic Effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed—
Metric units (kg/Mwh)
TSS 0.032 0.016
Chromium total .001 .0005
Chromium VI .0001 .00005
Manganese total .011 .005
Cyanide total .0005 .0003
Phenols .0004 .0002
pH ( 1) ( 1)
English units (lb/Mwh)
TSS .071 .035
Chromium total .002 .0012
Chromium VI .0002 .0001
Manganese total .023 .012
Cyanide total .001 .0006
Phenols .0009 .0005
pH ( 1) ( 1)

1 Within the range 6.0 to 9.0.

Provided, however, That for nonelectric furnace smelting processes, the units of effluent limitations set forth in this section shall be read as “kg/kkg of product” rather than “kg/Mwh,” and the limitations (except for pH) shall be 3.3 times those listed in the table in this section (or, for English units, “lb/ton of product” rather than “lb/Mwh,” and the limitations (except for pH) shall be three times those listed in the table).
[39 FR 6809, Feb. 22, 1974, as amended at 39 FR 17841, May 21, 1974]