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 Quench Operations.
PSES------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/1000 kkg (pounds per
million pounds) of metal
poured
---------------------------Copper (T).................................. 0.0307 0.0168Lead (T).................................... 0.0211 0.0104Zinc (T).................................... 0.0303 0.0116TTO......................................... 0.0335 0.0109Oil and grease (for alternate monitoring)... 1.2 0.399------------------------------------------------------------------------
(b) Direct Chill 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)................................ 0.928 0.506Lead (T).................................. 0.639 0.314Zinc (T).................................. 0.916 0.35------------------------------------------------------------------------
(c) 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)................................ 0.552 0.301Lead (T).................................. 0.38 0.187Zinc (T).................................. 0.545 0.208Total phenols............................. 0.617 0.215TTO....................................... 1.65 0.54Oil and grease (for alternate monitoring). 21.5 7.18------------------------------------------------------------------------
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(e) 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).................................. 5.84 2.86Zinc (T).................................. 8.37 3.19TTO....................................... 25.4 8.29Oil and grease for alternate monitoring).. 330 110------------------------------------------------------------------------
(f) 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)................................ 1.81 0.988Lead (T).................................. 1.25 0.612Zinc (T).................................. 1.79 0.673Total phenols............................. 2.02 0.706TTO....................................... 5.41 1.77Oil and grease (for alternate monitoring). 70.6 23.5------------------------------------------------------------------------
(g) 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)................................ 0.392 0.214Lead (T).................................. 0.27 0.132Zinc (T).................................. 0.387 0.148TTO....................................... 0.428 0.14Oil and grease (for alternate monitoring). 15.3 5.09------------------------------------------------------------------------