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 conventional technology.
(a) Sulfuric acid pickling (spent acid solutions and rinse waters)--(1) Rod, wire and coil.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.0819 0.0350O&G; \1\........................................ 0.0350 0.0117pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(2) Bar, billet and bloom.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.0263 0.0113O&G; \1\........................................ 0.0113 0.00376pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(3) Strip, sheet and plate.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.0526 0.0225O&G; \1\........................................ 0.0225 0.00751pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(4) Pipe, tube and other products.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.146 0.0626O&G; \1\........................................ 0.0626 0.0209pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(5) Fume scrubbers.
Subpart I------------------------------------------------------------------------
BCT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kilograms per day
-------------TSS............................................ 5.72 2.45O&G; \1\........................................ 2.45 0.819pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0. The above limitations shall be applicable to each fume scrubber associated with a sulfuric acid pickling operation.
(b) Hydrochloric acid pickling (spent acid solutions and rinse waters)--(1) Rod, wire and coil.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.143 0.0613O&G; \1\........................................ 0.0613 0.0204pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(2) Strip, sheet and plate.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.0819 0.0350O&G; \1\........................................ 0.0350 0.0117pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(3) Pipe, tube and other products.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.298 0.128O&G; \1\........................................ 0.128 0.0426pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0
(4) Fume scrubbers.
Subpart I------------------------------------------------------------------------
BCT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kilograms per day
-------------TSS............................................ 5.72 2.45O&G; \1\........................................ 2.45 0.819pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0. The above limitations shall be applicable to each fume scrubber associated with a hydrochloric acid pickling operation.
(5) Acid regeneration (absorber vent scrubber).
Subpart I------------------------------------------------------------------------
BCT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kilograms per day
-------------TSS............................................ 38.2 16.3O&G; \1\........................................ 16.3 5.45pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0. The above limitations shall be applicable to the absorber vent scrubber wastewater associated with hydrochloric acid regeneration plants.
(c) Combination acid pickling (spent acid solution and rinse waters)--(1) Rod, wire, and coil.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.149 0.0638O&G; \1\........................................ 0.0638 0.0213pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(2) Bar, billet, and bloom.
Subpart I------------------------------------------------------------------------
BCT effluent limitations
-------------------------
Average of
daily
Pollutant or pollutant property Maximum for values for
any 1 day 30
consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
--------------TSS........................................... 0.0672 0.0288O&G; \1\....................................... 0.0288 0.00960pH............................................ (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(3) Strip, sheet, and plate--continuous.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.438 0.188O&G; \1\........................................ 0.188 0.0626pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(4) Strip, sheet and plate--batch.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.134 0.0576O&G; \1\........................................ 0.0576 0.0192pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(5) Pipe, tube, and other products.
Subpart I------------------------------------------------------------------------
BCT 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............................................ 0.225 0.0964O&G; \1\........................................ 0.0964 0.0321pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0.
(6) Fume scrubbers.
Subpart I------------------------------------------------------------------------
BCT effluent
limitations
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kilograms per day
-------------TSS............................................ 5.72 2.45O&G; \1\........................................ 2.45 0.819pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for oil and grease shall be applicable when acid
pickling wastewaters are treated with cold rolling wastewaters.\2\ Within the range of 6.0 to 9.0. The above limitations shall be applicable to each fume scrubber associated with a combination acid pickling operation. [47 FR 23284, May 27, 1982; 47 FR 41739, Sept. 22, 1982]