Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources:
(a) Galvanizing, terne coatings and other coatings--(1) Strip, sheet, and miscellaneous products.
Subpart L------------------------------------------------------------------------
Pretreatment standards for
new sources
---------------------------
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
---------------Lead........................................ 0.000282 0.0000939Zinc........................................ 0.000376 0.000125Chromium (hexavalent) \1\................... 0.0000376 0.0000125------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step.
(2) [Reserved]
(b) Galvanizing and other coatings--(1) Wire products and fasteners.
Subpart L------------------------------------------------------------------------
Pretreatment standards
for new sources
-------------------------
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
-------------Lead.......................................... 0.00113 0.000376Zinc.......................................... 0.00150 0.000500Chromium (hexavalent) \1\..................... 0.000150 0.0000501------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step.
(2) [Reserved]
(c) Fume scrubbers.
Subpart L------------------------------------------------------------------------
Pretreatment standards
for new sources
------------------------
Average of
Pollutant or pollutant property daily
Maximum values for
for any 1 30
day consecutive
days------------------------------------------------------------------------
Kilograms per day
-------------Lead........................................... 0.0368 0.0123Zinc........................................... 0.0491 0.0164Chromium (Hexavalent) \1\...................... 0.00490 0.00163------------------------------------------------------------------------\1\ The limitations for hexavalent chromium shall be applicable only to
galvanizing operations which discharge wastewaters from the chromate
rinse step. 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 21037, May 17, 1984]