Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm\3\ or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.
(a) Casting Cleaning Operations.
NSPS------------------------------------------------------------------------
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 0.0431Oil and grease.............................. 3.0 1.0TSS......................................... 3.8 1.5pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum Maximum for
for any 1 monthly Annual
day average average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................ 0.77 0.42 0.017Lead (T).......................... 0.79 0.39 0.022Zinc (T).......................... 1.14 0.43 0.027Oil and grease.................... 30 10 0.501TSS............................... 38 15 1.0pH................................ (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (12/x) where
x is the actual normalized process wastewater flow (in gallons per
1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(b) Casting Quench Operations.
NSPS------------------------------------------------------------------------
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 0.0052Oil and grease.............................. 0.363 0.121TSS......................................... 0.46 0.182pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.77 0.42 0.0021Lead (T)............................. 0.79 0.39 0.0027Zinc (T)............................. 1.14 0.43 0.0033Oil and grease....................... 30 10 0.0605TSS.................................. 38 15 0.121pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.45/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(c) Die Casting Operations.
NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
one 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 0.0026Oil and grease.............................. 0.259 0.0864TSS and..................................... 0.33 0.13pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)........................... 0.77 0.42 0.0015Lead (T)............................. 0.79 0.39 0.0019Zinc (T)............................. 1.14 0.43 0.0023Total phenols........................ 0.86 0.3 0.0017Oil and grease....................... 30 10 0.0432TSS and.............................. 38 15 0.0864pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.\2\ These concentrations must be multiplied by the ratio of (1.04/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured)\3\ Within the range of 7.0 to 10.0 at all times.
(d) Dust Collection Scrubber Operations.
NSPS------------------------------------------------------------------------
Maximum for
Pollutant of pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
kg/62.3 million Sm \3\
(pounds per billion SCF) of
air scrubbed
-----------------------------Cooper (T)................................ 0.231 0.126Lead (T).................................. 0.237 0.117Zinc (T).................................. 0.343 0.129Total phenols............................. 0.258 0.09Oil and grease............................ 9.01 3.0TSS....................................... 11.4 4.51pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Cooper (T)........................... 0.77 0.42 0.0511Lead (T)............................. 0.79 0.39 0.0661Zinc (T)............................. 1.14 0.43 0.0811Total phenols........................ 0.86 0.3 0.0601Oil and grease....................... 30 10 1.5TSS.................................. 38 15 3.0pH................................... (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.036/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.
(f) Investment Casting.
NSPS------------------------------------------------------------------------
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 4.74Oil and grease............................ 330 110TSS....................................... 419 165pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.77 0.42 1.87Lead (T)........................... 0.79 0.39 2.42Zinc (T)........................... 1.14 0.43 2.97Oil and grease..................... 30 10 55.1TSS................................ 38 15 110pH................................. (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds) of metal poured\2\ These concentrations must be multiplied by the ratio of (1,320/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(g) Melting Furnace Scrubber Operations.
NSPS------------------------------------------------------------------------
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 1.17Oil and grease............................ 117 39.1TSS....................................... 148 58.6pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\Copper (T)......................... 0.77 0.42 0.664Lead (T)........................... 0.79 0.39 0.859Zinc (T)........................... 1.14 0.43 1.05Total phenols...................... 0.86 0.3 0.781Oil and grease..................... 30 10 19.5TSS................................ 38 15 39.1pH................................. (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.\2\ These concentrations must be multiplied by the ratio of (0.468/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 SCF of air scrubbed) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times.
(h) Mold Cooling Operations.
NSPS------------------------------------------------------------------------
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 0.166Oil and grease............................ 11.6 3.86TSS....................................... 14.7 5.79pH........................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\Copper (T)......................... 0.77 0.42 0.0656Lead (T)........................... 0.79 0.39 0.0849Zinc (T)........................... 1.14 0.43 0.104Oil and grease..................... 30 10 1.93TSS................................ 38 15 3.86pH................................. (\3\) (\3\) (\3\)------------------------------------------------------------------------\1\ kg/1,000 kkg (pounds per million pounds of metal poured.
\2\ These concentrations must be multiplied by the ratio of (46.3/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.\3\ Within the range of 7.0 to 10.0 at all times. [50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]