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40 C.F.R. § 421.314

Standards of performance for new sources.

§ 421.314 Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Tungsten detergent wash and rinse.

NSPS for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten scrap washed
Copper0.2500.119
Nickel0.1070.072
Ammonia (as N)25.99011.430
Cobalt0.5380.236
Tungsten0.6790.302
Oil and grease1.9501.950
Total suspended solids2.9252.340
pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Tungsten leaching acid.

NSPS for the Secondary Tungsten and Cobalt Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten produced
Copper3.2911.569
Nickel1.4140.951
Ammonia (as N)342.700150.700
Cobalt7.0963.111
Tungsten8.9473.985
Oil and grease25.71025.710
Total suspended solids38.57030.850
pH( 1)( 1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Tungsten post-leaching wash and rinse.

NSPS for the Secondary Tungsten and Cobalt Subcategory

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