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) Sulfuric acid pickling (spent acid solutions and rinse waters)--(1) Rod, wire and coil.
Subpart I------------------------------------------------------------------------
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............................................. 0.0818 0.0350O&G; \1\......................................... 0.0350 0.0117Lead............................................ 0.000526 0.000175Zinc............................................ 0.000701 0.000234pH.............................................. (\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------------------------------------------------------------------------
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......................................... 0.0263 0.0113O&G; \1\..................................... 0.0113 0.00375Lead........................................ 0.000169 0.0000563Zinc........................................ 0.000225 0.0000751pH.......................................... (\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------------------------------------------------------------------------
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............................................. 0.0526 0.0225O&G; \1\......................................... 0.0225 0.00751Lead............................................ 0.000338 0.000113Zinc............................................ 0.000451 0.000150pH.............................................. (\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------------------------------------------------------------------------
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............................................. 0.146 0.0626O&G; \1\......................................... 0.0626 0.0209Lead............................................ 0.000939 0.000313Zinc............................................ 0.00125 0.000417pH.............................................. (\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------------------------------------------------------------------------
BPT 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 0.819Lead............................................ 0.0368 0.0123Zinc............................................ 0.0491 0.0164pH.............................................. (\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------------------------------------------------------------------------
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............................................. 0.143 0.0613O&G; \1\......................................... 0.0613 0.0204Lead............................................ 0.000920 0.000307Zinc............................................ 0.00123 0.000409pH.............................................. (\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------------------------------------------------------------------------
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............................................. 0.0818 0.0350O&G; \1\......................................... 0.0350 0.0117Lead............................................ 0.000526 0.000175Zinc............................................ 0.000701 0.000234pH.............................................. (\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------------------------------------------------------------------------
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............................................ 0.298 0.128O&G; \1\........................................ 0.128 0.0426Lead........................................... 0.00192 0.000638Zinc........................................... 0.00255 0.000851pH............................................. (\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------------------------------------------------------------------------
BPT 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 0.819Lead........................................... 0.0368 0.0123Zinc........................................... 0.0491 0.0164pH............................................. (\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------------------------------------------------------------------------
BPT 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 5.45Lead........................................... 0.245 0.0819Zinc........................................... 0.327 0.109pH............................................. (\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------------------------------------------------------------------------
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............................................ 0.149 0.0638O&G; \1\........................................ 0.0638 0.0213Chromium....................................... 0.00213 0.000852Nickel......................................... 0.00192 0.000638pH............................................. (\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------------------------------------------------------------------------
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............................................. 0.0672 0.0288O&G; \1\......................................... 0.0288 0.00960
Chromium........................................ 0.000960 0.000384Nickel.......................................... 0.000864 0.000288pH.............................................. (\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------------------------------------------------------------------------
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............................................ 0.438 0.188O&G; \1\........................................ 0.188 0.0626Chromium....................................... 0.00626 0.00250Nickel......................................... 0.00563 0.00188pH............................................. (\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------------------------------------------------------------------------
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............................................ 0.134 0.0576O&G; \1\........................................ 0.0576 0.0192Chromium....................................... 0.00192 0.000768Nickel......................................... 0.00173 0.000576pH............................................. (\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------------------------------------------------------------------------
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............................................ 0.225 0.0964O&G; \1\........................................ 0.0964 0.0322Chromium....................................... 0.00322 0.00129Nickel......................................... 0.00289 0.000964pH............................................. (\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------------------------------------------------------------------------
BPT 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 0.819Chromium....................................... 0.0819 0.0327Nickel......................................... 0.0735 0.0245pH............................................. (\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, as amended at 49 FR 21030, May 17, 1984]