Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources.
(a) Casting Cleaning Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of metal
poured
---------------------------Copper (T).................................. 0.0771 0.0421Lead (T).................................... 0.0791 0.039Zinc (T).................................... 0.114 0.0431------------------------------------------------------------------------
(b) Casting Quench Operation.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of metal
poured
---------------------------Copper (T).................................. 0.0093 0.0051Lead (T).................................... 0.0096 0.0047Zinc (T).................................... 0.0138 0.0052TT0......................................... 0.029 0.0095Oil and grease (for alternate monitoring)... 0.363 0.121------------------------------------------------------------------------
(c) Die Casting Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of metal
poured
---------------------------Copper (T).................................. 0.0066 0.0036Lead (T).................................... 0.0068 0.0034Zinc (T).................................... 0.0098 0.0037Total phenols............................... 0.0074 0.0026TTO......................................... 0.0308 0.01Oil and grease (for alternate monitoring)... 0.259 0.0864------------------------------------------------------------------------
(d) Dust Collection Scrubber Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/62.3 million Sm \3\
(pounds per billion SCF) of
air scrubbed
-----------------------------Copper (T)................................ 0.231 0.126Lead (T).................................. 0.237 0.117Zinc (T).................................. 0.343 0.129Total phenols............................. 0.258 0.09TTO....................................... 0.613 0.2Oil and grease (for alternate monitoring). 9.01 3.00------------------------------------------------------------------------
(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(f) Investment Casting.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of metal
poured
---------------------------Copper (T).................................. 8.48 4.63Lead (T).................................... 8.7 4.3Zinc (T).................................... 12.6 4.74TTO......................................... 18.1 5.91Oil and grease (for alternate monitoring.... 330 110------------------------------------------------------------------------
(g) Melting Furnace Scrubber Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/62.3 million Sm \3\
(pounds per billion SCF)
of air scrubbed
---------------------------Copper (T).................................. 3.01 1.64Lead (T).................................... 3.09 1.52Zinc (T).................................... 4.45 1.68Total phenols............................... 3.36 1.17TTO......................................... 7.97 2.6Oil and grease (for alternate monitoring)... 117 39.1------------------------------------------------------------------------
(h) Mold Cooling Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1,000 kkg (pounds per
million pounds) of metal
poured
-----------------------------Copper (T)................................ 0.297 0.162Lead (T).................................. 0.305 0.151Zinc (T).................................. 0.44 0.166TTO....................................... 0.935 0.304Oil and grease (for alternate monitoring). 11.6 3.86------------------------------------------------------------------------ [50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]