The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.
(a) Galvanizing, terne coating and other coatings--(1) Strip, sheet, and miscellaneous products.
Subpart L------------------------------------------------------------------------
New source performance
standards
---------------------------
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......................................... 0.0438 0.0188O&G.........................................; 0.0188 0.00626
Lead........................................ 0.000282 0.0000939Zinc........................................ 0.000376 0.000125Chromium (hexavalent) \1\................... 0.0000376 0.0000125pH.......................................... (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step.\2\ Within the range of 6.0 to 9.0.
(2) [Reserved]
(b) Galvanizing and other coatings--(1) Wire products and fasteners.
Subpart L------------------------------------------------------------------------
New source performance
standards
-------------------------
Average of
Pollutant or pollutant property Maximum daily values
for any 1 for 30
day consecutive
days------------------------------------------------------------------------
Kg/kkg (pounds per 1,000
lb) of product
-------------TSS........................................... 0.175 0.0751O&G...........................................; 0.0751 0.0250Lead.......................................... 0.00113 0.000376Zinc.......................................... 0.00150 0.000500Chromium (hexavalent) \1\..................... 0.000150 0.0000501pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step.\2\ Within the range of 6.0 to 9.0.
(2) [Reserved]
(c) Fume scrubbers.
Subpart L------------------------------------------------------------------------
Pollutant or pollutant
property
------------------------
Average of
New source performance standards daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
kg/per day
-------------TSS............................................ 5.72 2.45O&G............................................; 2.45 0.819Lead........................................... 0.0368 0.0123Zinc........................................... 0.0491 0.0164Chromium (hexavalent) \1\...................... 0.00490 0.00163pH............................................. (\2\) (\2\)------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step.\2\ Within the range of 6.0 to 9.0. The above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above. [47 FR 23284, May 27, 1982, as amended at 49 FR 21036, May 17, 1984]