Loading (50 kb)...'
(continued)
Zinc (T).................................. 10.8 4.07
TTO....................................... 13.2 4.3
Oil and Grease (for alternate monitoring). 330 110
------------------------------------------------------------------------
(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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)................................ 3.19 1.76
Lead (T).................................. 8.7 4.3
Zinc (T).................................. 16.2 6.17
TTO....................................... 13.2 4.3
Oil and Grease (for alternate monitoring). 330 110
------------------------------------------------------------------------
(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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)................................ 1.02 0.561
Lead (T).................................. 1.86 0.911
Zinc (T).................................. 3.44 1.3
Total Phenols............................. 3.01 1.05
TTO....................................... 8.34 2.73
Oil and Grease (for alternate monitoring). 105 35
------------------------------------------------------------------------
(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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)................................ 1.02 0.561
Lead (T).................................. 2.77 1.37
Zinc (T).................................. 5.15 1.96
Total Phenols............................. 3.01 1.05
TTO....................................... 8.34 2.73
Oil and Grease (for alternate monitoring). 105 35
------------------------------------------------------------------------
(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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).................................. 0.0428 0.0236
Lead (T).................................... 0.0783 0.0384
Zinc (T).................................... 0.145 0.0546
TTO......................................... 0.0797 0.026
Oil and Grease (for alternate monitoring)... 4.43 1.48
------------------------------------------------------------------------
(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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).................................. 0.0428 0.0236
Lead (T).................................... 0.117 0.0576
Zinc (T).................................... 0.217 0.0827
TTO......................................... 0.0797 0.026
Oil and Grease (for alternate monitoring)... 4.43 1.48
------------------------------------------------------------------------
(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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).................................. 0.0527 0.0291
Lead (T).................................... 0.0964 0.0473
Zinc (T).................................... 0.178 0.0673
TTO......................................... 0.0257 0.00838
Oil and grease (for alternate monitoring)... 5.46 1.82
------------------------------------------------------------------------
(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
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).................................. 0.0527 0.0291
Lead (T).................................... 0.144 0.0709
Zinc (T).................................... 0.267 0.102
TTO......................................... 0.0257 0.00838
Oil and grease (for alternate monitoring)... 5.46 1.82
------------------------------------------------------------------------
(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
sand
reclaimed
-----------------------------
Copper (T)................................ 0.217 0.12
Lead (T).................................. 0.396 0.194
Zinc (T).................................. 0.732 0.276
Total phenols............................. 0.642 0.224
TTO....................................... 1.18 0.386
Oil and grease (for alternate monitoring). 22.4 7.47
------------------------------------------------------------------------
(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.
PSNS
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/1,000 kkg
(pounds per
million
pounds) of
sand
reclaimed
-----------------------------
Copper (T)................................ 0.217 0.12
Lead (T).................................. 0.59 0.291
Zinc (T).................................. 1.10 0.418
Total phenols............................. 0.642 0.224
TTO....................................... 1.18 0.386
Oil and grease (for alternate monitoring). 22.4 7.47
------------------------------------------------------------------------
§ 464.37 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
top
Subpart D—Zinc Casting Subcategory
top
§ 464.40 Applicability; description of the zinc casting subcategory.
top
The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from zinc casting operations as defined in §464.02(d).
§ 464.41 Specialized definitions.
top
For the purpose of this subpart:
(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§464.45) and PSNS (§464.46) for the zinc subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:
(1) Casting Quench (§464.45(a) and §464.46(a)):
21. 2,4,6-trichlorophenol
22. para-chloro meta-cresol
31. 2,4-dichlorophenol
34. 2,4-dimethylphenol
39. fluoranthene
44. methylene chloride (dichloromethane)
65. phenol
66. bis(2-ethylhexyl) phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
85. tetrachloroethylene
(2) Die Casting (§465.45(b) and §464.46(b)):
1. acenaphthene
21. 2,4,6-trichlorophenol
22. para-chloro meta-cresol
24. 2-chlorophenol
34. 2,4-dimethylphenol
44. methylene chloride (dichloromethane)
55. naphthalene
65. phenol
66. bis (2-ethylhexyl) phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
85. tetrachloroethylene
86. toluene
87. trichloroethylene
(3) Melting Furnace Scrubber (§464.45(c) and §464.46(c)):
31. 2,4-dichlorophenol
34. 2,4-dimethylphenol
39. fluoranthene
44. methylene chloride (dichloromethane)
55. naphthalene
65. phenol
66. bis(2-ethylhexyl) phthalate
68. di-n-butyl phthalate
85. tetrachloroethylene
86. toluene
87. trichloroethylene
(4) Mold Cooling (§464.45(d) and §464.46(d)):
21. 2,4,6-trichlorophenol
22. para-chloro meta-cresol
31. 2,4-dichlorophenol
34. 2,4-dimethylphenol
39. fluoranthene
44. methylene chloride (dichloromethane)
65. phenol
66. bis(2-ethylhexyl) phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
85. tetrachloroethylene
[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.42 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
top
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, 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 limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to noncontinuous dischargers.
(a) Casting Quench Operations.
BPT Effluent Limitations
------------------------------------------------------------------------
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).................................. 0.0344 0.0187
Lead (T).................................... 0.0353 0.0174
Zinc (T).................................... 0.0509 0.0192
Oil and grease.............................. 1.34 0.446
TSS......................................... 1.7 0.67
pH.......................................... (\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/1) \2\ (mg/1) \2\
Copper (T)........................... 0.77 0.42 0.0076
Lead (T)............................. 0.79 0.39 0.0098
Zinc (T)............................. 1.14 0.43 0.0121
Oil and grease....................... 30 10 0.223
TSS.................................. 38 15 0.446
pH................................... (\3\) (\3\) (\3\)
------------------------------------------------------------------------
\1\ kg/1000 kkg (pound per million pounds) of metal poured.
\2\ These concentrations must be multiplied by the ratio of (5.35/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) Die Casting Operations.
BPT Effluent Limitations
------------------------------------------------------------------------
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 0.0036
Lead (T).................................... 0.0068 0.0034
Zinc (T).................................... 0.0098 0.0037
Total phenols............................... 0.0074 0.0026
Oil and grease.............................. 0.259 0.0864
TTS......................................... 0.328 0.13
pH.......................................... (\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 0.0015
Lead (T)........................... 0.79 0.39 0.0019
Zinc (T)........................... 1.14 0.43 0.0023
Total phenols...................... 0.86 0.3 0.0017
Oil and grease..................... 30 10 0.0432
TSS................................ 38 15 0.0864
pH................................. (\3\) (\3\) (\3\)
------------------------------------------------------------------------
\1\ kg/1000 kkg (pound 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) for a specific plant.
\3\ Within the range of 7.0 to 10.0 at all times.
(c) Melting Furnace Scrubber Operations.
BPT Effluent Limitations
------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average
------------------------------------------------------------------------
kg/62.3
millions Sm
\3\ (pounds
per billion
SCF) of air
scrubbed
---------------------------
Copper (T).................................. 1.56 0.852
Lead (T).................................... 1.6 0.791
Zinc (T).................................... 2.31 0.872
Total Phenols............................... 1.74 0.608
Oil and grease.............................. 60.8 20.3
TSS......................................... 77.1 30.4
pH.......................................... (\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 0.345
Lead (T)........................... 0.79 0.39 0.446
Zinc (T)........................... 1.14 0.43 0.548
Total Phenols...................... 0.86 0.3 0.406
Oil and grease..................... 30 10 10.1
TSS................................ 38 15 20.3
pH................................. (\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 (0.243/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.
(d) Mold Cooling Operations.
BPT Effluent Limitations
------------------------------------------------------------------------
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).................................. 0.304 0.166
Lead (T).................................... 0.311 0.154
Zinc (T).................................... 0.449 0.17
Oil and grease.............................. 11.8 3.94
TSS......................................... 15 5.91
pH.......................................... (\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 0.067
Lead (T)............................. 0.79 0.39 0.0867
Zinc (T)............................. 1.14 0.43 0.106
Oil and grease....................... 30 10 1.97
TSS.................................. 38 15 3.94
pH................................... (\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 (47.3/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 21762, June 16, 1986]
§ 464.43 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
top
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, 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 limitations for copper, lead, zinc, and total phenols. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.
(a) Casting Quench Operations.
BAT Effluent Limitations
------------------------------------------------------------------------
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).................................. 0.0344 0.0187
Lead (T).................................... 0.0237 0.0116
Zinc (T).................................... 0.0339 0.0129
------------------------------------------------------------------------
------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\
------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\
Copper (T)........................... 0.77 0.42 0.0076
Lead (T)............................. 0.53 0.26 0.0067
Zinc (T)............................. 0.76 0.29 0.008
------------------------------------------------------------------------
\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.
\2\ These concentrations must be multiplied by the ratio of (5.34/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.
(b) Die Casting Operations.
BAT Effluent Limitations
------------------------------------------------------------------------
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 0.0036
Lead (T).................................... 0.0046 0.0022
Zinc (T).................................... 0.0066 0.0025
Total phenols............................... 0.0074 0.0026
------------------------------------------------------------------------
------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\
------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\
Copper (T)........................... 0.77 0.42 0.0015
Lead (T)............................. 0.53 0.26 0.0013
Zinc (T)............................. 0.76 0.29 0.0016
Total phenols........................ 0.86 0.3 0.0017
------------------------------------------------------------------------
\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) for a specific plant.
(c) Melting Furnace Scrubber Operations.
BAT Effluent Limitations
------------------------------------------------------------------------
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)................................ 1.56 0.852
Lead (T).................................. 1.07 0.527
Zinc (T).................................. 1.54 0.588
Total phenolse............................ 1.74 0.608
------------------------------------------------------------------------
------------------------------------------------------------------------
Maximum for Annual
Maximum for monthly average
any 1 day average \1\
------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\
Copper (T)......................... 0.77 0.42 0.345
Lead (T)........................... 0.53 0.26 0.304
Zinc (T)........................... 0.76 0.29 0.365
Total phenols...................... 0.86 0.3 0.406
------------------------------------------------------------------------
\1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed.
\2\ These concentrations must be multiplied by the ratio of (0.243/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.
(d) Mold Cooling Operations.
BAT Effluent Limitations
------------------------------------------------------------------------
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).................................. 0.304 0.166
Lead (T).................................... 0.209 0.103
Zinc (T).................................... 0.3 0.114
------------------------------------------------------------------------
------------------------------------------------------------------------
Maximum
Maximum for Annual
for any 1 monthly average
day average \1\
------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\
Copper (T)............................ 0.77 0.42 0.067
Lead (T).............................. 0.53 0.26 0.0591
Zinc (T).............................. 0.76 0.29 0.071
------------------------------------------------------------------------
\1\ kg/1,000 kkg (pounds per million pounds) of metal poured.
\2\ These concentrations must be multiplied by the ratio of (47.3/x)
where x is the actual normalized process wastewater flow (in gallons
per 1,000 pounds of metal poured) for a specific plant.
[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.44 New source performance standards.
top
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 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).................................. 0.0344 0.0187
Lead (T).................................... 0.0237 0.0116
Zinc (T).................................... 0.0339 0.0129
Oil and grease.............................. 1.34 0.446
TSS......................................... 0.67 0.536
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
----------------------------------------------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual average
any 1 day average \1\
----------------------------------------------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\
Copper (T)......................................................... 0.77 0.42 0.0076
Lead (T)........................................................... 0.53 0.26 0.0067
Zinc (T)........................................................... 0.76 0.29 0.008
Oil and grease..................................................... 30 10 0.223
TSS................................................................ 15 12 0.116
pH................................................................. (\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 (5.34/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) Die Casting 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).................................. 0.0066 0.0036
Lead (T).................................... 0.0046 0.0022
Zinc (T).................................... 0.0066 0.0025
Total phenols............................... 0.0074 0.0026
Oil and grease.............................. 0.259 0.0864
TSS......................................... 0.13 0.104
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
----------------------------------------------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual average
any 1 day average \1\
----------------------------------------------------------------------------------------------------------------
(mg/l) \2\ (mg/l) \2\
Copper (T)......................................................... 0.77 0.42 0.0015
Lead (T)........................................................... 0.53 0.26 0.0013
Zinc (T)........................................................... 0.76 0.29 0.0016
Total phenols...................................................... 0.86 0.3 0.0017
Oil and grease..................................................... 30 10 0.0432
TSS................................................................ 15 12 0.0225
pH................................................................. (\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) for a specific plant.
\3\Within the range of 7.0 to 10.0 at all times.
(c) 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)................................ 1.56 0.852
Lead (T).................................. 1.07 0.527
Zinc (T).................................. 1.54 0.588
Total phenols............................. 1.74 0.608
Oil and grease............................ 60.8 20.3
TSS....................................... 30.4 24.3
pH........................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
----------------------------------------------------------------------------------------------------------------
Maximum for
Maximum for monthly Annual average
any 1 day average \1\
----------------------------------------------------------------------------------------------------------------
(mg/l)\2\ (mg/l)\2\
Copper (T)......................................................... 0.77 0.42 0.345
Lead (T)........................................................... 0.53 0.26 0.304
Zinc (T)........................................................... 0.76 0.29 0.365
Total phenols...................................................... 0.86 0.3 0.406
Oil and grease..................................................... 30 10 10.1
TSS................................................................ 15 12 5.27
pH................................................................. (\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 (0.243/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.
(d) 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)................................ 0.304 0.166
Lead (T).................................. 0.209 0.103
Zinc (T).................................. 0.3 0.114
Oil and grease............................ 11.8 3.94
TSS....................................... 5.91 4.73
pH........................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to10.0 at all times. (continued)