currently available (BPT).
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 control technology currently available.
(a) Cold rolling mills--(1) Recirculation--single stand.
Subpart J------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
---------------TSS......................................... 0.00125 0.000626O&G.........................................; 0.000522 0.000209Chromium \1\................................ 0.0000209 0.0000084Lead........................................ 0.0000094 0.0000031Nickel \1\.................................. 0.0000188 0.0000063Zinc........................................ 0.0000063 0.0000021Naphthalene................................. 0.0000021 ............Tetrachloroethylene......................... 0.0000031 ............pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold rolling wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(2) Recirculation--multiple stands.
Subpart J------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
---------------TSS......................................... 0.00626 0.00313O&G.........................................; 0.00261 0.00104Chromium \1\................................ 0.000104 0.0000418Lead........................................ 0.0000469 0.0000156Nickel \1\.................................. 0.0000939 0.0000313Zinc........................................ 0.0000313 0.0000104Naphthalene................................. 0.0000104 ............Tetrachloroethylene......................... 0.0000156 ............pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold rolling wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(3) Combination.
Subpart J------------------------------------------------------------------------
BPT 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
-------------TSS............................................ 0.0751 0.0376O&G............................................; 0.0313 0.0125Chromium \1\................................... 0.00125 0.000501Lead........................................... 0.000563 0.000188Nickel \1\..................................... 0.00113 0.000376Zinc........................................... 0.000376 0.000125Naphthalene.................................... 0.000125 ...........Tetrachloroethylene............................ 0.000188 ...........pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold rolling wastewaters are cotreated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(4) Direct application--single stand.
Subpart J------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
---------------TSS......................................... 0.0225 0.0113O&G.........................................; 0.00939 0.00376Chromium \1\................................ 0.000376 0.000150Lead........................................ 0.000169 0.0000563Nickel \1\.................................. 0.000338 0.000113Zinc........................................ 0.000113 0.0000376Naphthalene................................. 0.0000376 ............Tetrachloroethylene......................... 0.0000563 ............pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold rolling wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(5) Direct application--multiple stands.
Subpart J------------------------------------------------------------------------
BPT 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
-------------TSS............................................ 0.100 0.0501O&G............................................; 0.0417 0.0167Chromium \1\................................... 0.00167 0.000668Lead........................................... 0.000751 0.000250Nickel \1\..................................... 0.00150 0.000501Zinc........................................... 0.000501 0.000167Naphthalene.................................... 0.000167 ...........Tetrachloroethylene............................ 0.000250 ...........pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold rolling wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(b) Cold worked pipe and tube--(1) Using water.
Subpart J------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Average of
Pollutant of pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
---------------TSS......................................... 0.00125 0.000626O&G.........................................; 0.000522 0.000209Chromium \1\................................ 0.0000209 0.0000084Lead........................................ 0.0000094 0.0000031Nickel \1\.................................. 0.0000188 0.0000063Zinc........................................ 0.0000063 0.0000021pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold forming wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0.
(2) Using oil solutions.
Subpart J------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
---------------TSS......................................... 0.00125 0.000626O&G.........................................; 0.000522 0.000209Chromium \1\................................ 0.0000209 0.0000084Lead........................................ 0.0000094 0.0000031Nickel \1\.................................. 0.0000188 0.0000063Zinc........................................ 0.0000063 0.0000021Naphthalene................................. 0.0000021 ............Tetrachloroethylene......................... 0.0000031 ............pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for chromium and nickel shall be applicable in lieu
of those for lead and zinc when cold forming wastewaters are treated
with descaling or combination acid pickling wastewaters.\2\ Within the range of 6.0 to 9.0. [47 FR 23284, May 27, 1982, as amended at 49 FR 21034, May 17, 1984; 49 FR 24726, June 15, 1984]