achievable (BAT).
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 available technology economically achievable.
(a) Salt bath descaling, oxidizing--(1) Batch, sheet and plate.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Chromium....................................... 0.00292 0.00117Nickel......................................... 0.00263 0.000876------------------------------------------------------------------------
(2) Batch, rod and wire.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Chromium....................................... 0.00175 0.000701Nickel......................................... 0.00158 0.000526------------------------------------------------------------------------
(3) Batch, pipe and tube.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Chromium....................................... 0.00709 0.00284Nickel......................................... 0.00638 0.00213------------------------------------------------------------------------
(4) Continuous.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Chromium....................................... 0.00138 0.000551Nickel......................................... 0.00124 0.000413------------------------------------------------------------------------
(b) Salt bath descaling, reducing--(1) Batch.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Cyanide........................................ 0.00102 0.000339Chromium....................................... 0.00136 0.000542Nickel......................................... 0.00122 0.000407------------------------------------------------------------------------
(2) Continuous.
Subpart H------------------------------------------------------------------------
BAT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per
1,000 lb) of product
-------------Cyanide........................................ 0.00569 0.00190Chromium....................................... 0.00759 0.00304Nickel......................................... 0.00683 0.00228------------------------------------------------------------------------