Title 40—Protection of Environment--Volume 1
PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
§ 421.1   Applicability.
This part applies to facilities producing primary metals from ore concentrates and recovering secondary metals from recycle wastes which discharge or may discharge pollutants to waters of the United States or which introduce or may introduce pollutants into a publicly owned treatment works. The applicability of this part to alloying or casting of nonferrous metals is limited to alloying or casting of hot metal directly from the nonferrous metals manufacturing process without cooling. Remelting followed by alloying or cooling is included in the aluminum forming, nonferrous metals forming, or metal molding and casting point source categories.
§ 421.2   [Reserved]
§ 421.3   Monitoring and reporting requirements.
The following special monitoring requirements apply to all facilities controlled by this regulation:
(a) The monthly average regulatory values shall be the basis for the monthly average discharge in direct discharge permits and for pretreatment standards. Compliance with the monthly discharge limit is required regardless of the number of samples analyzed and averaged.
(b) Periodic analysis for cyanide are not required for a facility in the primary beryllium subcategory (subpart O of this part) when both of the following conditions are met:
(1) The first wastewater sample taken in each calandar year has been analyzed and found to contain less than 0.07 mg/1 cyanide.
(2) The owner or operator of the primary beryllium manufacturing facility certifies in writing to the POTW authority or permit issuing authority that cyanide is neither generated nor used in the beryllium manufacturing process employed at that facility.
§ 421.4   Compliance date for pretreatment standards for existing sources (PSES).
The PSES compliance deadline in subparts A through M is March 8, 1987. The PSES compliance deadline for plants in subparts N through AE is September 20, 1988.
§ 421.5   Removal allowances for pretreatment standards.
Removal allowances pursuant to 40 CFR 403.7(a) may be granted for the toxic metals limited in 40 CFR part 421 when used as indicator pollutants.
§ 421.10   Applicability; description of the bauxite refining subcategory.
The provisions of this subpart are applicable to discharges resulting from the refining of bauxite to alumina by the Bayer process or by the combination process.
§ 421.11   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.
(b) The term bauxite shall mean ore containing alumina monohydrate or alumina trihydrate which serves as the principal raw material for the production of alumina by the Bayer process or by the combination process.
(c) The term product shall mean alumina.
(d) For all impoundments the term within the impoundment for purposes of calculating the volume of process wastewater which may be discharged, shall mean the surface area within the impoundment at the maximum capacity plus the area of the inside and outside slopes of the impoundment dam and the surface area between the outside edge of the impoundment dam and seepage ditches upon which rain falls and is returned to the impoundment. For the purpose of such calculations, the surface area allowance for external appurtenances to the impoundment shall not be more than 30 percent of the water surface area within the impoundment dam at maximum capacity.
(e) The term pond water surface area for the purpose of calculating the volume of waste water shall mean the area within the impoundment for rainfall and the actual water surface area for evaporation.
§ 421.12   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart, shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
(a) Subject to the provisions of paragraph (b) of this section, the following limitations establish the quantity or quality of pollutants or pollutant properties which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available: There shall be no discharge of process waste water pollutants to navigable waters.
(b) During any calendar month there may be discharged from the overflow of a process waste water impoundment either a volume of process waste water equal to the difference between the precipitation for that month that falls within the impoundment and the evaporation within the impoundment for that month, or, if greater, a volume of process waste water equal to the difference between the mean precipitation for that month that falls within the impoundment and the mean evaporation for that month as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located (or as otherwise determined if no monthly data have been established by the National Climatic Center).
§ 421.13   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subject to the provisions of paragraph (b) of this section, the following limitations establish the quantity or quality of pollutants or pollutant properties which may be discharged by a point source subject to the provisions of this subpart after application of the best available technology economically achievable: There shall be no discharge of process waste water pollutants to navigable waters.
(b) During any calendar month there may be discharged from the overflow of a process waste water impoundment either a volume of process waste water equal to the difference between the precipitation for that month that falls within the impoundment and the evaporation within the impoundment for that month, or, if greater, a volume of process waste water equal to the difference between the mean precipitation for that month that falls within the impoundment and the mean evaporation for that month as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located (or as otherwise determined if no monthly data have been established by the National Climatic Center).
§ 421.14   [Reserved]
§ 421.15   Standards of performance for new sources.
(a) Subject to the provisions of paragraph (b) of this section, the following standards of performance establish the quantity or quality of pollutants or pollutant properties which may be discharged by a new source subject to the provisions of this subpart: There shall be no discharge of process waste water pollutants to navigable waters.
(b) During any calendar month there may be discharged from the overflow of a process waste water impoundment either a volume of process waste water equal to the difference between the precipitation for that month that falls within the impoundment and the evaporation within the impoundment for that month, or, if greater, a volume of process waste water equal to the difference between the mean precipitation for that month that falls within the impoundment and the mean evaporation for that month as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located (or as otherwise determined if no monthly data have been established by the National Climatic Center).
§ 421.16   Pretreatment standards for new sources.
Any new sources subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403.
§ 421.20   Applicability: description of the primary aluminum smelting subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of aluminum from alumina in the Hall-Heroult process.
§ 421.21   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter, shall apply to this subpart.
(b) The term product shall mean hot aluminum metal.
(c) If a permittee chooses to analyze for benzo(a)pyrene using any EPA-approved method, any “non-detected” measurements shall be considered zeroes for the purpose of determining compliance with this regulation.
§ 421.22   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available (BPT):
1 Within the range of 6 to 9 at all times.
§ 421.23   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart B—Anode and Cathode Paste Plant Wet Air Pollution Control
BAT Effluent Limitations
(b) Subpart (B)—Anode Contact Cooling and Briquette Quenching.
BAT Effluent Limitations
(c) Subpart (B)—Anode Bake Plant Wet Air Pollution Control (Closed Top Ring Furnace).
BAT Effluent Limitations
(d) Subpart B—Anode Bake Plant Wet Air Pollution Control (Open Top Ring Furnace With Spray Tower Only).
BAT Effluent Limitations
(e) Subpart B—Anode Bake Plant Wet Air Pollution Control (Open Top Ring Furnace With Wet Electrostatic Precipitator and Spray Tower).
BAT Effluent Limitations
(f) Subpart B—Anode Bake Plant Wet Air Pollution Control (Tunnel Kiln).
BAT Effluent Limitations
(g) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).
BAT Effluent Limitations
(h) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).
BAT Effluent Limitations
(i) Subpart B—Cathode Reprocessing (Operated With Wet Potline Scrubbing).
BAT Effluent Limitations
(j) Subpart B—Potline Wet Air Pollution Control (Operated Without Cathode Reprocessing).
BAT Effluent Limitations
(k) Subpart B—Potline Wet Air Pollution Control (Operated With Cathode Reprocessing and Not Commingled With Other Process or Nonprocess Waters).
BAT Effluent Limitations
(l) Potline Wet Air Pollution Control Cooperated With Cathode Reprocessing and Commingled With Other Process or Nonprocess Wastewaters).
BAT Effluent Limitations
(m) Subpart B—Potroom Wet Air Pollution Control.
BAT Effluent Limitations
(n) Subpart B—Potline SO 2 Emissions Wet Air Pollution Control.
BAT Effluent Limitations
(o) Subpart B—Degassing Wet Air Pollution Control.
BAT Effluent Limitations
1 There shall be no discharge allowance for this pollutant.
(p) Subpart B—Pot Repair and Pot Soaking.
BAT Effluent Limitations
(q) Subpart B—Direct Chill Casting Contact Cooling.
BAT Effluent Limitations
1 There shall be no discharge allowance for this pollutant.
(r) Subpart B—Continuous Rod Casting Contact Cooling.
BAT Effluent Limitations
1 There shall be no discharge allowance for this pollutant.
(s) Subpart B—Stationary Casting or Shot Casting Contact Cooling.
BAT Effluent Limitations
§ 421.24   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart B—Anode and Cathode Paste Plant Wet Air.
Pollution Control—NSPS
1 Within the range of 7.0 to 10.0 at all times.
(b) Subpart B—Anode Contact Cooling and Briquette Quenching.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(c) Subpart B—Anode Bake Plant Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(d) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(e) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(f) Subpart B—Potline Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(g) Subpart B—Potroom Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(h) Subpart B—Potline SO 2 Emissions Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(i) Subpart B—Degassing Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(j) Subpart B—Pot Repair and Pot Soaking.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(k) Subpart B—Direct Chill Casting Contact Cooling.
NSPS
1 There shall be no discharge allowance for this pollutant.
2 The pH shall be maintained within the range of 7.0 to 10.0 at all times except for those situations when this waste is discharged separately and without commingling with any other waste-water in which case the pH shall be within the range of 6.0 to 10.0 at all times.
(l) Subpart B—Continuous Rod Casting Contact Cooling.
NSPS
1 There shall be no discharge allowance for this pollutant.
2 Within the range of 7.0 to 10.0 at all times.
(m) Subpart B—Stationary Casting or Shot Casting Contact Cooling.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
§ 421.25   [Reserved]
§ 421.26   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary aluminum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart B—Anode and Cathode Paste Plant Wet Air Pollution Control.
PSNS
(b) Subpart B—Anode Contact Cooling and Briquette Quenching.
PSNS
(c) Subpart B—Anode Bake Plant Wet Air Pollution Control.
PSNS
(d) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).
PSNS
(e) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).
PSNS
(f) Subpart B—Potline Wet Air Pollution Control.
PSNS
(g) Subpart B—Potroom Wet Air Pollution Control.
PSNS
(h) Subpart B—Potline SO 2 Emissions Wet Air Pollution Control.
PSNS
(i) Subpart B—Degassing Wet Air Pollution Control.
PSNS
(j) Subpart B—Pot Repair and Pot Soaking.
PSNS
(k) Subpart B—Direct Chill Casting Contact Cooling.
PSNS
1 There shall be no discharge allowance for this pollutant.
(l) Subpart B—Continuous Rod Casting Contact Cooling.
PSNS
1 There shall be no discharge allowance for this pollutant.
(m) Subpart B—Stationary Casting or Shot Casting Contact Cooling.
PSNS
§ 421.27   [Reserved]
§ 421.30   Applicability: Description of the secondary aluminum smelting subcategory.
The provisions of this subpart are applicable to discharges resulting from the recovery, processing, and remelting of aluminum scrap to produce metallic aluminum alloys.
§ 421.31   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations and methods of analysis set forth in part 401 of this chapter shall apply to this subpart.
(b) The term product shall mean hot aluminum metal.
(c) At-the-source means at or before the commingling of delacquering scrubber liquor blowdown with other process or nonprocess wastewaters.
§ 421.32   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) The following limitations establish the quantity or quality of pollutants or pollutant properties, which may be discharged by a point source subject to the provisions of this subpart and which uses water for metal cooling, after application of the best practicable control technology currently available: There shall be no discharge of process wastewater pollutants to navigable waters.
(b) The following limitations establish the quantity or quality of pollutants or pollutant properties which may be discharged by a point source subject to the provisions of this subpart and which uses aluminum fluoride in its magnesium removal process (“demagging process”), after application of the best practicable control technology currently available: There shall be no discharge of process wastewater pollutants to navigable waters.
(c) The following limitations establish the quantity or quality of pollutants or pollutant properties controlled by this section, which may be discharged by a point source subject to the provisions of this subpart and which uses chlorine in its magnesium removal process, after application of the best practicable control technology currently available:
Effluent Limitations
1 Within the range of 7.5 to 9.0.
(d) The following limitations establish the quantity or quality of pollutants or pollutant properties which may be discharged by a point source subject to the provisions of this subpart and which processes residues by wet methods, after application of the best practical control technology currently available:
Effluent Limitations
1 Within the range of 7.5 to 9.0.
§ 421.33   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart C—Scrap Drying Wet Air Pollution Control.
BAT Effluent Limitations
(b) Subpart C—Scrap Screening and Milling.
BAT Effluent Limitations
(c) Subpart C—Dross Washing.
BAT Effluent Limitations
(d) Subpart C—Demagging Wet Air Pollution Control.
BAT Effluent Limitations
(e) Subpart C—Delacquering Wet Air Pollution Control.
BAT Effluent Limitations
1 At the source.
(f) Subpart C—Direct Chill Casting Contact Cooling.
BAT Effluent Limitations
(g) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).
BAT Effluent Limitations
(h) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chloride Demagging Wet Air Pollution Control is Practiced On Site).
BAT Effluent Limitations
(i) Subpart C—Stationary Casting Contact Cooling.
BAT Effluent Limitations
(j) Subpart C—Shot Casting Contact Cooling.
BAT Effluent Limitations
§ 421.34   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart C—Scrap Drying Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times
(b) Subpart C—Scrap Screening and Milling.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(c) Subpart C—Dross Washing.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(d) Subpart C—Demagging Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(e) Subpart C—Delacquering Wet Air Pollution Control.
NSPS
1 At the source.
2 Within the range of 7.0 to 10.0 at all times.
(f) Subpart C—Direct Chill Casting Contact Cooling.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(g) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(h) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Practiced On Site).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(i) Subpart C—Stationary Casting Contact Cooling.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(j) Subpart C—Shot Casting Contact Cooling.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
§ 421.35   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary aluminum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart C—Scrap Drying Wet Air Pollution Control.
PSES
(b) Subpart C—Scrap Screening and Milling.
PSES
(c) Subpart C—Dross Washing.
PSES
(d) Subpart C—Demagging Wet Air Pollution Control.
PSES
(e) Subpart C—Delacquering Wet Air Pollution Control.
PSES
1 At the source.
(f) Subpart C—Direct Chill Casting Contact Cooling.
PSES
(g) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).
PSES
(h) Subpart C—Ingot Conveyor Casting Contact Cooling. (When Chlorine Demagging Wet Air Pollution Control is Practiced On Site.)
PSES
(i) Subpart C—Stationary Casting Contact Cooling.
PSES
(j) Subpart C—Shot Casting Contact Cooling.
PSES
§ 421.36   Pretreatment standards for new sources.
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. The mass of wastewater pollutants introduced in secondary aluminum process wastewater into a POTW shall not exceed the following values:
(a) Subpart C—Scrap Drying Wet Air Pollution Control.
PSNS
(b) Subpart C—Scrap Screening and Milling.
PSNS
(c) Subpart C—Dross Washing.
PSNS
(d) Subpart C—Demagging Wet Air Pollution Control.
PSNS
(e) Subpart C—Delacquering Wet Air Pollution Control
PSNS
1 At the source.
(f) Subpart C—Direct Chill Casting Contact Cooling.
PSNS
(g) Subpart C—Ingot Conveyor Casting Control Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).
PSNS
(h) Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control Is Practiced on Site).
PSNS
(i) Subpart C—Stationary Casting Contact Cooling.
PSNS
(j) Subpart C—Shot Casting Contact Cooling.
PSNS
§ 421.37   [Reserved]
§ 421.40   Applicability: Description of the primary copper smelting subcategory.
The provisions of this subpart apply to process wastewater discharges resulting from the primary smelting of copper from ore or ore concentrates. Primary copper smelting includes, but is not limited to, roasting, converting, leaching if preceded by a pyrometallurgical step, slag granulation and dumping, fire refining, and the casting of products from these operations.
§ 421.41   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 apply to this subpart.
(b) In the event that the waste streams covered by this subpart are combined for treatment or discharge with waste streams covered by Subparts E—Primary Electrolytic Copper Refining and/or Subpart I—Metallurgical Acid Plants, the quantity of each pollutant or pollutant property discharged shall not exceed the quantity of each pollutant or pollutant property which could be discharged if each waste stream were discharged separately.
(c) For all impoundments constructed prior to the effective date of the interim final regulation (40 FR 8513), the term “within the impoundment,” when used to calculate the volume of process wastewater which may be discharged, means the water surface area within the impoundment at maximum capacity plus the surface area of the inside and outside slopes of the impoundment dam as well as the surface area between the outside edge of the impoundment dam and any seepage ditch adjacent to the dam upon which rain falls and is returned to the impoundment. For the purpose of such calculations, the surface area allowances set forth above shall not exceed more than 30 percent of the water surface area within the impoundment dam at maximum capacity.
(d) For all impoundments constructed on or after the effective date of the interim final regulation (the interim regulation was effective February 27, 1975; 40 FR 8513, February 27, 1975), the term “within the impoundment,” for purposes of calculating the volume of process wastewater which may be discharged, means the water surface area within the impoundment at maximum capacity.
§ 421.42   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
(a) Except as provided in 40 CFR 125.30 through 125.32 and paragraph (b) of this section, 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 (BPT): There shall be no discharge of process wastewater pollutants to navigable waters.
(b) A process wastewater impoundment which is designed, constructed, and operated so as to contain the precipitation from the 10-year, 24-hour rainfall event as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located may discharge that volume of process wastewater which is equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 10-year, 24-hour rainfall event, when such event occurs.
§ 421.43   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subject to the provisions of paragraph (b) of this section, there shall be no discharge of process wastewater pollutants into navigable waters.
(b) A process wastewater impoundment which is designed, constructed, and operated so as to contain the precipitation from the 25-year, 24-hour rainfall event as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located may discharge that volume of process wastewater which is equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 25-year, 24-hour rainfall event, when such event occurs.
§ 421.44   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards: There shall be discharge of process wastewater pollutants into navigable waters.
§ 421.45   [Reserved]
§ 421.46   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary copper smelting process wastewater introduced into a POTW shall not exceed the following values: There shall be no discharge of process wastewater pollutants into a publicly owned treatment works.
§ 421.47   [Reserved]
§ 421.50   Applicability: Description of the primary electrolytic copper refining subcategory.
The provisions of this subpart apply to process wastewater discharges resulting from the electrolytic refining of primary copper, including, but not limited to, anode casting performed at refineries which are not located on-site with a smelter, product casting, and by-product recovery.
§ 421.51   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 apply to this subpart.
(b) The term product means electrolytically refined copper.
§ 421.52   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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 (BPT):
Effluent Limitations
1 Within the range of 6.0 to 9.0.
§ 421.53   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart E—Casting Contact Cooling.
BAT Effluent Limitations
(b) Subpart E—Anode and Cathode Rinse.
BAT Effluent Limitations
(c) Subpart E—Spent Electrolyte.
BAT Effluent Limitations
(d) Subpart E—Casting Wet Air Pollution Control.
BAT Effluent Limitations
(e) Subpart E—By-Product Recovery.
BAT Effluent Limitations
§ 421.54   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart E—Casting Contact Cooling.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart E—Anode and Cathode Rinse.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart E—Spent Electrolyte.
NSPS
1 Within the range 7.5 to 10.0 at all times.
(d) Subpart E—Casting Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart E—By-Product Recovery.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
§ 421.55   [Reserved]
§ 421.56   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary electrolytic copper refining process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart E—Casting Contact Cooling.
PSNS
(b) Subpart E—Anode and Cathode Rinse.
PSNS
(c) Subpart E—Spent Electrolyte.
PSNS
(d) Subpart E—Casting Wet Air Pollution Control.
PSNS
(e) Subpart E—By-Product Recovery.
PSNS
§ 421.57   [Reserved]
§ 421.60   Applicability: Description of the secondary copper subcategory.
The provisions of this subpart are applicable to discharges resulting from the recovery, processing, and remelting of new and used copper scrap and residues to produce copper metal and copper alloys, but are not applicable to continuous rod casting.
§ 421.61   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
(b) For all impoundments constructed prior to the effective date of this regulation the term “within the impoundment” when used for purposes of calculating the volume of process wastewater which may be discharged shall mean the water surface area within the impoundment at maximum capacity plus the surface area of the inside and outside slopes of the impoundment dam as well as the surface area between the outside edge of the impoundment dam and any seepage ditch immediately adjacent to the dam upon which rain falls and is returned to the impoundment. For the purpose of such calculations, the surface area allowances set forth above shall not be more than 30 percent of the water surface area within the impoundment dam at maximum capacity.
(c) For all impoundments constructed on or after the effective date of this regulation, the term “within the impoundment” for purposes of calculating the volume of process wastewater which may be discharged shall mean the water surface area within the impoundment at maximum capacity.
(d) The term pond water surface area when used for the purpose of calculating the volume of wastewater which may be discharged shall mean the water surface area of the pond created by the impoundment for storage of process wastewater at normal operating level. This surface shall in no case be less than one-third of the surface area of the maximum amount of water which could be contained by the impoundment. The normal operating level shall be the average level of the pond during the preceding calendar month.
§ 421.62   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available: Subject to the provisions of paragraphs (b), (c), and (d) of this section, there shall be no discharge of process wastewater pollutants into navigable waters.
(b) A process wastewater impoundment which is designed, constructed, and operated so as to contain the precipitation from the 10-year, 24-hour rainfall event as established by the National Climatic Center, National Oceanic and Atmospheric Administration for the areas in which such impoundment is located may discharge that volume of process wastewater which is equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 10-year, 24-hour rainfall event, when such event occurs.
(c) During any calendar month there may be discharged from a process wastewater impoundment either a volume of process wastewater equal to the difference between the precipitation for the month that falls within the impoundment and either the evaporation from the pond water surface area for that month, or a volume of process wastewater equal to the difference between the mean precipitation for that month that falls within the impoundment and the mean evaporation from the pond water surface area as establsihed by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located (or as otherwise determined if no monthly data have been established by the National Climatic Center), whichever is greater.
(d) Any process wastewater discharged pursuant to paragraph (c) of this section shall comply with each of the following requirements:
1 Within the range of 6.0 to 9.0.
§ 421.63   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subject to the provisions of paragraph (b) of this section, there shall be no discharge of process wastewater pollutants into navigable waters.
(b) a process wastewater impoundment which is designed, constructed, and operated so as to contain the precipitation from the 25-year, 24-hour rainfall event as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located may discharge that volume of process wastewater which is equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 25-year, 24-hour rainfall event, when such event occurs.
§ 421.64   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards: There shall be no discharge of process wastewater pollutants into navigable waters.
§ 421.65   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary copper process wastewater introduced into a POTW shall not exceed the following values:
(a) There shall be no discharge of process wastewater pollutants into a publicly owned treatment works subject to the provisions of paragraph (b) of this section.
(b) A process wastewater impoundment which is designed, constructed, and operated so as to contain the precipitation from the 25-year, 24-hour rainfall event as established by the National Climatic Center, National Oceanic and Atmospheric Administration, for the area in which such impoundment is located may discharge that volume of process wastewater equivalent to the volume of precipitation that falls within the impoundment in excess of that attributable to the 25-year, 24-hour rainfall event, when such event occurs.
§ 421.66   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary copper process wastewater introduced into a POTW shall not exceed the following values: There shall be no discharge of process wastewater pollutants into a publicly owned treatment works.
§ 421.67   [Reserved]
§ 421.70   Applicability: Description of the primary lead subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead smelters and refineries.
§ 421.71   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.72   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart G—Blast Furnace Slag Granulation.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart G—Dross Reverberatory Slag Granulation.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart G—Hard Lead Refining Slag Granulation.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart G—Hard Lead Refining Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart G—Facility Washdown.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart G—Employee Handwash.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart G—Respirator Wash.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(l) Subpart G—Laundering of Uniforms.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
§ 421.73   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
BAT Effluent Limitations
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
BAT Effluent Limitations
(c) Subpart G—Blast Furnace Slag Granulation.
BAT Effluent Limitations
(d) Subpart G—Dross Reverberatory Slag Granulation.
BAT Effluent Limitations
(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
BAT Effluent Limitations
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
BAT Effluent Limitations
(g) Subpart G—Hard Lead Refining Slag Granulation.
BAT Effluent Limitations
(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.
BAT Effluent Limitations
(i) Subpart G—Facility Washdown.
BAT Effluent Limitations
(j) Subpart G—Employee Handwash.
BAT Effluent Limitations
(k) Subpart G—Respirator Wash.
BAT Effluent Limitations
(l) Subpart G—Laundering of Uniforms.
BAT Effluent Limitations
§ 421.74   Standards of performance for new sources.
Any new source subject to this subpart must achieve the following performance standards:
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart G—Blast Furnace Slag Granulation.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart G—Dross Reverberatory Slag Granulation.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart G—Hard Lead Refining Slag Granulation.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart G—Facility Washdown.
NSPS
Within the range of 7.5 to 10.0 at all times.
(j) Subpart G—Employee Handwash.
NSPS
Within the range of 7.5 to 10.0 at all times.
(k) Subpart G—Respirator Wash.
NSPS
Within the range of 7.5 to 10.0 at all times.
(l) Subpart G—Laundering of Uniforms.
NSPS
Within the range of 7.5 to 10.0 at all times.
§ 421.75   Pretreatment standards for existing sources.
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 mut comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in primary lead process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
PSES
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
PSES
(c) Subpart G—Blast Furnace Slag Granulation.
PSES
(d) Subpart G—Dross Reverberatory Slag Granulation.
PSES
(e) Subpart G—Dross Reverberatory Furnance Wet Air Pollution Control.
PSES
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
PSES
(g) Subpart G—Hard Lead Refining Slag Granulation.
PSES
(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.
PSES
(i) Subpart G—Facility Washdown.
PSES
(j) Subpart G—Employee Handwash.
PSES
(k) Subpart G—Respirator Wash.
PSES
(l) Subpart G—Laundering of Uniforms.
PSES
§ 421.76   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary lead process wastewaters introduced into a POTW shall not exceed the following values.
(a) Subpart G—Sinter Plant Materials Handling Wet Air Pollution Control.
PSNS
(b) Subpart G—Blast Furnace Wet Air Pollution Control.
PSNS
(c) Subpart G—Blast Furnace Slag Granulation.
PSNS
(d) Subpart G—Dross Reverberatory Slag Granulation.
PSNS
(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.
PSNS
(f) Subpart G—Zinc Fuming Wet Air Pollution Control.
PSNS
(g) Subpart G—Hard Lead Refining Slag Granulation.
PSNS
(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.
PSNS
(i) Subpart G—Facility Washdown.
PSNS
(j) Subpart G—Employee Handwash.
PSNS
(k) Subpart G—Respirator Wash.
PSNS
(l) Subpart G—Laundering of Uniforms.
PSNS
§ 421.77   [Reserved]
§ 421.80   Applicability: Description of the primary zinc subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of primary zinc by either electrolytic or pyrolytic means.
§ 421.81   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
(b) The term product shall mean zinc metal.
§ 421.82   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
Effluent Limitations
Within the range of 6.0 to 9.0.
§ 421.83   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart H—Zinc Reduction Furnace Wet Air Pollution Control.
BAT Effluent Limitations
(b) Subpart H—Preleach of Zinc Concentrates.
BAT Effluent Limitations
(c) Subpart H—Leaching Wet Air Pollution Control.
BAT Effluent Limitations
(d) Subpart H—Electrolyte Bleed Wastewater.
BAT Effluent Limitations
(e) Subpart H—Cathode and Anode Wash Wastewater.
BAT Effluent Limitations
(f) Subpart H—Casting Wet Air Pollution Control.
BAT Effluent Limitations
(g) Subpart H—Casting Contact Cooling.
BAT Effluent Limitations
(h) Subpart H—Cadmium Plant Wastewater.
BAT Effluent Limitations
§ 421.84   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart H—Zinc Reduction Furnace Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart H—Preleach of Zinc Concentrates.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart H—Leaching Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart H—Electrolyte Bleed Wastewater.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart H—Cathode and Anode Wash Wastewater.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart H—Casting Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart H—Casting Contact Cooling.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart H—Cadmium Plant Wastewater.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
§ 421.85   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary zinc process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart H—Zinc Reduction Furnace Wet Air Pollution Control.
PSES
(b) Subpart H—Preleach of Zinc Concentrates.
PSES
(c) Subpart H—Leaching Wet Air Pollution Control.
PSES
(d) Subpart H—Electrolyte Bleed Wastewater.
PSES
(e) Subpart H—Cathode and Anode Wash Wastewater.
PSES
(f) Subpart H—Casting Wet Air Pollution Control.
PSES
(g) Subpart H—Casting Contact Cooling.
PSES
(h) Subpart H—Cadmium Plant Wastewater.
PSES
§ 421.86   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary zinc process wastewaters introduced into a POTW shall not exceed the following values:
(a) Subpart H—Zinc Reduction Furnace Wet Air Pollution Control.
PSNS
(b) Subpart H—Preleach of Zinc Concentrates.
PSNS
(c) Subpart H—Leaching Wet Air Pollution Control.
PSNS
(d) Subpart H—Electrolyte Bleed Wastewater.
PSNS
(e) Subpart H—Cathode and Anode Wash Wastewater.
PSNS
(f) Subpart H—Casting Wet Air Pollution Control.
PSNS
(g) Subpart H—Casting Contact Cooling.
PSNS
(h) Subpart H—Cadmium Plant Wastewater.
PSNS
§ 421.87   [Reserved]
§ 421.90   Applicability: Description of the metallurgical acid plants subcategory.
The provisions of this subpart apply to process wastewater discharges resulting from or associated with the manufacture of by-product sulfuric acid at primary copper smelters, primary zinc facilities, primary lead facilities, and primary molybdenum facilities, including any associated air pollution control or gas-conditioning systems for sulfur dioxide off-gases from pyrometallurgical operations.
§ 421.91   Specialized definitions.
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 apply to this subpart.
(b) The term product means 100 percent equivalent sulfuric acid, H 2 SO 4 capacity.
§ 421.92   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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 (BPT):
Subpart I—Metallurgical Acid Plant
1 For Molybdenum Acid Plants Only.
2 Within the range of 6.0 to 9.0 at all times.
§ 421.93   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
Subpart I—Metallurgical Acid Plant—BAT Effluent Limitations
1 For Molybdenum acid plants only.
§ 421.94   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
Subpart I—Metallurgical Acid Plant—NSPS
1 For Molybdenum acid plants only.
2 Within the range of 7.5 to 10.0 at all times.
§ 421.95   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in metallurgical acid plant blowdown introduced into a POTW shall not exceed the following values:
Subpart I—Metallurgical Acid Plant—PSES
§ 421.96   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in metallurgical acid plant blowdown introduced into a POTW shall not exceed the following values:
Subpart I—Metallurgical Acid Plant—PSNS
1 For Molybdenum acid plants only.
§ 421.97   [Reserved]
§ 421.100   Applicability: Description of the primary tungsten subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of tungsten at primary tungsten facilities.
§ 421.101   Specialized definitions.
For the purpose of this subpart the general information, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.102   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Subpart J—Tungstic Acid Rinse.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(b) Subpart J—Acid Leach Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(c) Subpart J—Alkali Leach Wash.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(d) Subpart J—Alkali Leach Wash Condensate.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
2 The effluent limitation guideline for this pollutant does not apply if (a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; (b) this mother liquor or raffinate is treated by ammonia steam stripping; and (c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.
(g) Subpart J—Calcium Tungstate Precipitate Wash.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(h) Subpart J—Crystallization and Drying of Ammonium Paratungstate.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(k) Subpart J—Reduction to Tungsten Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(l) Subpart J—Reduction to Tungsten Water of Formation.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(m) Subpart J—Tungsten Powder Acid Leach and Wash.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
(n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.0 to 10.0 at all times.
§ 421.103   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart J—Tungstic Acid Rinse.
BAT Effluent Limitations
(b) Subpart J—Acid Leach Wet Air Pollution Control.
BAT Effluent Limitations
(c) Subpart J—Alkali Leach Wash.
BAT Effluent Limitations
(d) Subpart J—Alkali Leach Wash Condensate.
BAT Effluent Limitations
(e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
BAT Effluent Limitations
(f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
BAT Effluent Limitations
1 The effluent limitation for this pollutant does not apply if a) the motor liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/1; b) this mother liquor or raffinate is treated by ammonia steam stripping; and c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.
(g) Subpart J—Calcium Tungstate Precipitate Wash.
BAT Effluent Limitations
(h) Subpart J—Crystallization and Drying of Ammonium Paratungstate.
BAT Effluent Limitations
(i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
BAT Effluent Limitations
(j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
BAT Effluent Limitations
(k) Subpart J—Reduction to Tungsten Wet Air Pollution Control.
BAT Effluent Limitations
(l) Subpart J—Reduction to Tungsten Water of Formation.
BAT Effluent Limitations
(m) Subpart J—Tungsten Powder Acid Leach and Wash.
BAT Effluent Limitations
(n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.
BAT Effluent Limitations
§ 421.104   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart J—Tungstic Acid Rinse.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(b) Subpart J—Acid Leach Wet Air Pollution
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(c) Subpart J—Alkali Leach Wash.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(d) Subpart J—Alkali Leach Wash Condensate.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
NSPS
1 Within the range of 7.0 to 10.0 at all times.
2 The new source standard for this pollutant does not apply if (a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; (b) this mother liquor or raffinate is treated by ammonia steam stripping; and (c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.
(g) Subpart J—Calcium Tungstate Precipitate Wash.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(h) Subpart J—Crystallization and Drying of Ammonium Paratungstate.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(k) Subpart J—Reduction to Tungsten Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(l) Subpart J—Reduction to Tungsten Water of Formation.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(m) Subpart J—Tungsten Power Acid Leach and Wash.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
(n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.
NSPS
1 Within the range of 7.0 to 10.0 at all times.
§ 421.105   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary tungsten process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart J—Tungstic Acid Rinse.
PSES
(b) Subpart J—Acid Leach Wet Air Pollution Control.
PSES
(c) Subpart J—Alkali Leach Wash.
PSES
(d) Subpart J—Alkali Leach Wash Condensate.
PSES
(e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
PSES
(f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
PSES
1 The pretreatment standard for this pollutant does not apply if (a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; (b) this mother liquor or raffinate is treated by ammonia steam stripping; and (c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.
(g) Subpart J—Calcium Tungstate Precipitate Wash.
PSES
(h) Subpart J—Crystallization and Drying of Ammonium Paratungstate.
PSES
(i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
PSES
(j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
PSES
(k) Subpart J—Reduction to Tungsten Wet Air Pollution Control.
PSES
(l) Subpart J—Reduction to Tungsten Water of Formation.
PSES
(m) Subpart J—Tungsten Powder Acid Leach and Wash.
PSES
(n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.
PSES
§ 421.106   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary tungsten process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart J—Tungstic Acid Rinse.
PSNS
(b) Subpart J—Acid Leach Wet Air Pollution Control.
PSNS
(c) Subpart J—Alkali Leach Wash.
PSNS
(d) Subpart J—Alkali Leach Wash Condensate.
PSNS
(e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
PSNS
(f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
PSNS
1 The pretreatment standard for this pollutant does not apply if a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; b) this mother liquor or raffinate is treated by ammonia steam stripping; and c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.
(g) Subpart J—Calcium Tungstate Precipitate Wash.
PSNS
(h) Subpart J—Crystallization and Drying of Ammonium Paratungstate.
PSNS
(i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
PSNS
(j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
PSNS
(k) Subpart J—Reduction to Tungsten Wet Air Pollution Control.
PSNS
(l) Subpart J—Reduction to Tungsten Water of Formation.
PSNS
(m) Subpart J—Tungsten Powder Acid Leach and Wash.
PSNS
(n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.
PSNS
§ 421.107   [Reserved]
§ 421.110   Applicability: Description of the primary columbium-tantalum subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of columbium or tantalum by primary columbium-tantalum facilities.
§ 421.111   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.112   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart K—Solvent Extraction Raffinate.
BPT Effluent Limitations
Within the range of 7.5 to 10.0 at all times.
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart K—Precipitation and Filtration.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart K—Tantalum Salt Drying.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart K—Reduction of Tantalum Salt to Metal.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart K—Tantalum Powder Wash.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart K—Consolidation and Casting Contact Cooling.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
§ 421.113   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
BAT Effluent Limitations
(b) Subpart K—Solvent Extraction Raffinate.
BAT Effluent Limitations
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
BAT Effluent Limitations
(d) Subpart K—Precipitation and Filtration.
BAT Effluent Limitations
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
BAT Effluent Limitations
(f) Subpart K—Tantalum Salt Drying.
BAT Effluent Limitations
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
BAT Effluent Limitations
(h) Subpart K—Reduction of Tantalum Salt to Metal.
BAT Effluent Limitations
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
BAT Effluent Limitations
(j) Subpart K—Tantalum Powder Wash.
BAT Effluent Limitations
(k) Subpart K—Consolidation and Casting Contact Cooling.
BAT Effluent Limitations
§ 421.114   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart K—Solvent Extraction Raffinate.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart K—Precipitation and Filtration.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart K—Tantalum Salt Drying.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart K—Reduction of Tantalum Salt to Metal.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart K—Tantalum Powder Wash.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart K—Consolidation and Casting Contact Cooling.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
§ 421.115   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary columbium-tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
PSES
(b) Subpart K—Solvent Extraction Raffinate.
PSES
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
PSES
(d) Subpart K—Precipitation and Filtration.
PSES
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
PSES
(f) Subpart K—Tantalum Salt Drying.
PSES
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
PSES
(h) Subpart K—Reduction of Tantalum Salt to Metal.
PSES
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
PSES
(j) Subpart K—Tantalum Powder Wash.
PSES
(k) Subpart K—Consolidation and Casting Contact Cooling.
PSNS
§ 421.116   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary columbium-tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart K—Concentrate Digestion Wet Air Pollution Control.
PSNS
(b) Subpart K—Solvent Extraction Raffinate.
PSNS
(c) Subpart K—Solvent Extraction Wet Air Pollution Control.
PSNS
(d) Subpart K—Precipitation and Filtration.
PSNS
(e) Subpart K—Precipitation and Filtration Wet Air Pollution Control.
PSNS
(f) Subpart K—Tantalum Salt Drying.
PSNS
(g) Subpart K—Oxides Calcining Wet Air Pollution Control.
PSNS
(h) Subpart K—Reduction of Tantalum Salt to Metal.
PSNS
(i) Subpart K—Reduction of Tantalum Salt to Metal Wet Air Pollution Control.
PSNS
(j) Subpart K—Tantalum Powder Wash.
PSNS
(k) Subpart K—Consolidation and Casting Contact Cooling.
PSNS
§ 421.117   [Reserved]
§ 421.120   Applicability: Description of the secondary silver subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of silver from secondary silver facilities processing photographic and nonphotographic raw materials.
§ 421.121   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.122   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Subpart L—Film Stripping.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart L—Electrolytic Refining.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart L—Furnace Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart L—Leaching.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart L—Precipitation and Filtration of Nonphotographic Solutions.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart L—Floor and Equipment Washdown.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
§ 421.123   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart L—Film Stripping.
BAT Effluent Limitations
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
BAT Effluent Limitations
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
BAT Effluent Limitations
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
BAT Effluent Limitations
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
BAT Effluent Limitations
(f) Subpart L—Electrolytic Refining.
BAT Effluent Limitations
(g) Subpart L—Furnace Wet Air Pollution Control.
BAT Effluent Limitations
(h) Subpart L—Leaching.
BAT Effluent Limitations
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
BAT Effluent Limitations
(j) Subpart L—Precipitation and Filtration of Nonphotographic Solutions.
BAT Effluent Limitations
(k) Subpart L—Floor and Equipment Washdown.
BAT Effluent Limitations
§ 421.124   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart L—Film Stripping.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart L—Electrolytic Refining.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart L—Furnace Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart L—Leaching.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart L—Precipitation and Filtration of Nonphotograhic Solutions.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart L—Floor and Equipment Washdown.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
§ 421.125   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary silver process wastewater introduced into a POTW must not exceed the following values.
(a) Subpart L—Film Stripping.
PSES
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
PSES
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
PSES
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
PSES
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
PSES
(f) Subpart L—Electrolytic Refining.
PSES
(g) Subpart L—Furnace Wet Air Pollution Control.
PSES
(h) Subpart L—Leaching.
PSES
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
PSES
(j) Subpart L—Precipitation and Filtration of Nonphotographic Solutions.
PSES
(k) Subpart L—Floor and Equipment Washdown.
PSES
§ 421.126   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary silver process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart L—Film Stripping.
PSNS
(b) Subpart L—Film Stripping Wet Air Pollution Control and Precipitation and Filtration of Film Stripping Solutions Wet Air Pollution Control.
PSNS
(c) Subpart L—Precipitation and Filtration of Film Stripping Solutions.
PSNS
(d) Subpart L—Precipitation and Filtration of Photographic Solutions.
PSNS
(e) Subpart L—Precipitation and Filtration of Photographic Solutions Wet Air Pollution Control.
PSNS
(f) Subpart L—Electrolytic Refining.
PSNS
(g) Subpart L—Furnace Wet Air Pollution Control.
PSNS
(h) Subpart L—Leaching.
PSNS
(i) Subpart L—Leaching Wet Air Pollution Control and Precipitation of Nonphotographic Solutions Wet Air Pollution Control.
PSNS
(j) Subpart L—Precipitation and Filtration of Nonphotographic Solutions.
PSNS
(k) Subpart L—Floor and Equipment Washdown.
PSNS
§ 421.127   [Reserved]
§ 421.130   Applicability: Description of the secondary lead subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of lead by secondary lead facilities.
§ 421.131   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.132   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Subpart M—Battery Cracking
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart M—Kettle Wet Air Pollution Control
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart M—Lead Paste Desulfurization
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart M—Casting Contact Cooling
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart M—Truck Wash.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart M—Facility Washdown
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart M—Battery Case Classification.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart M—Employee Handwash.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart M—Employee Respirator Wash.
BPT Effulent Limitations
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart M—Laundering of Uniforms.
BPT Effluent Limitations
1 Within the range of 7.5 to 10.0 at all times.
§ 421.133   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Subpart M—Battery Cracking.
BAT Effluent Limitations
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.
BAT Effluent Limitations
(c) Subpart M—Kettle Wet Air Pollution Control.
BAT Effluent Limitations
(d) Subpart M—Lead Paste Desulfurization.
BAT Effluent Limitations
(e) Subpart M—Casting Contact Cooling.
BAT Effluent Limitations
(f) Subpart M—Truck Wash.
BAT Effluent Limitations
(g) Subpart M—Facility Washdown.
BAT Effluent Limitations
(h) Subpart M—Battery Case Classification.
BAT Effluent Limitations
(i) Subpart M—Employee Handwash.
BAT Effluent Limitations
(j) Subpart M—Employee Respirator Wash.
BAT Effluent Limitations
(k) Subpart M—Laundering of Uniforms.
BAT Effluent Limitations
§ 421.134   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Subpart M—Battery Cracking.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Subpart M—Kettle Wet Air Pollution Control.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(d) Subpart M—Lead Paste Desulfurization.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(e) Subpart M—Casting Contact Cooling.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Subpart M—Truck Wash.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(g) Subpart M—Facility Washdown.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(h) Subpart M—Battery Case Classification.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(i) Subpart M—Employee Handwash.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(j) Subpart M—Employee Respirator Wash.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
(k) Subpart M—Laundering of Uniforms.
NSPS
1 Within the range of 7.5 to 10.0 at all times.
§ 421.135   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary lead process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart M—Battery Cracking.
PSES
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.
PSES
(c) Subpart M—Kettle Wet Air Pollution Control.
PSES
(d) Subpart M—Lead Paste Desulfurization.
PSES
(e) Subpart M—Casting Contact Cooling.
PSES
(f) Subpart M—Truck Wash.
PSES
(g) Subpart M—Facility Washdown.
PSES
(h) Subpart M—Battery Case Classification.
PSES
(i) Subpart M—Employee Handwash.
PSES
(j) Subpart M—Employee Respirator Wash.
PSES
(k) Subpart M—Laundering of Uniforms.
PSES
§ 421.136   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary lead process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart M—Battery Cracking.
PSNS
(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.
PSNS
(c) Subpart M—Kettle Wet Air Pollution Control.
PSNS
(d) Subpart M—Lead Paste Desulfurization.
PSNS
(e) Subpart M—Casting Contact Cooling.
PSNS
(f) Subpart M—Truck Wash.
PSNS
(g) Subpart M—Facility Washdown.
PSNS
(h) Subpart M—Battery Case Classification.
PSNS
(i) Subpart M—Employee Handwash.
PSNS
(j) Subpart M—Employee Respirator Wash.
PSNS
(k) Subpart M—Laundering of Uniforms.
PSNS
§ 421.137   [Reserved]
§ 421.140   Applicability: Description of the primary antimony subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of antimony at primary antimony facilities.
§ 421.141   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.142   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
(a) Sodium Antimonate Autoclave Wastewater.
BPT Limitations for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Fouled anolyte.
BPT Limitations for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Cathode Antimony Wash Water.
BPT Limitations for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.143   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Sodium Antimonate Autoclave Wastewater.
BAT Limitations for the Primary Antimony Subcategory
(b) Fouled Anolyte.
BAT Limitations for the Primary Antimony Subcategory
(c) Cathode Antimony Wash Water
BAT Limitations for the Primary Antimony Subcategory
§ 421.144   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Sodium Antimonate Autoclave Wastewater.
NSPS for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Fouled Anolyte.
NSPS for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Cathode Antimony Wash Water.
NSPS for the Primary Antimony Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.145   [Reserved]
§ 421.146   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary antimony process wastewater introduced into a POTW shall not exceed the following values:
(a) Sodium Antimonate Autoclave Wastewater.
PSNS for the Primary Antimony Subcategory
(b) Fouled Anolyte.
PSNS for the Primary Antimony Subcategory
(c) Cathode Antimony Washwater.
PSNS for the Primary Antimony Subcategory
§ 421.147   [Reserved]
§ 421.150   Applicability: Description of the primary beryllium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of beryllium by primary beryllium facilities processing beryllium ore concentrates or beryllium hydroxide raw materials.
§ 421.151   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.152   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Solvent Extraction Raffinate from Bertrandite Ore.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times
(b) Solvent Extraction Raffinate from Beryl Ore.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Beryllium Carbonate Filtrate.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Beryllium Hydroxide Filtrate.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Beryllium Oxide Calcining Furnace Wet Air Pollution Control.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Beryllium hydroxide supernatant.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Process water.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Fluoride furnace scrubber.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Chip treatment wastewater.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Beryllium Pebble Plant Area Vent Wet Air Pollution Control.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Beryl Ore Gangue Dewatering.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Bertrandite Ore Gangue Dewatering.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Beryl Ore Processing.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Aluminum Iron Sludge (AIS) Area Wastewater.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Bertrandite Ore Leaching Scrubber.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.
BPT Limitations for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.153   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Solvent extraction raffinate from bertrandite ore.
BAT Limitations for the Primary Beryllium Subcategory
(b) Solvent extraction raffinate from beryl ore.
BAT Limitations for the Primary Beryllium Subcategory
(c) Beryllium carbonate filtrate.
BAT Limitations for the Primary Beryllium Subcategory
(d) Beryllium Hydroxide Filtrate.
BAT Limitations for the Primary Beryllium Subcategory
(e) Beryllium oxide calcining furnace wet air pollution control.
BAT Limitations for the Primary Beryllium Subcategory
(f) Beryllium hydroxide supernatant.
BAT Limitations for the Primary Beryllium Subcategory
(g) Process water.
BAT Limitations for the Primary Beryllium Subcategory
(h) Fluoride furnace scrubber.
BAT Limitations for the Primary Beryllium Subcategory
(i) Chip treatment wastewater.
BAT Limitations for the Primary Beryllium Subcategory
(j) Beryllium pebble plant area vent wet air pollution control.
BAT Limitations for the Primary Beryllium Subcategory
(k) Beryl Ore Gangue Dewatering.
BAT Limitations for the Primary Beryllium Subcategory
(l) Bertrandite Ore Gangue Dewatering.
BAT Limitations for the Primary Beryllium Subcategory
(m) Beryl Ore Processing.
BAT Limitations for the Primary Beryllium Subcategory
(n) Alumium Iron Sludge (AIS) Area Wastewater.
BAT Limitations for the Primary Beryllium Subcategory
(o) Bertrandite Ore Leaching Scrubber.
BAT Limitations for the Primary Beryllium Subcategory
(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.
BAT Limitations for the Primary Beryllium Subcategory
§ 421.154   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Solvent extraction raffinate from bertrandite ore.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Solvent extraction raffinate from beryl ore.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Beryllium carbonate filtrate.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Beryllium hydroxide filtrate.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Beryllium oxide calcining furnace wet air pollution control.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Beryllium hydroxide supernatant.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Process water.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Fluoride furnace scrubber.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Chip treatment wastewater.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Beryllium pebble plant area vent wet air pollution control.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Beryl Ore Gangue Dewatering.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Bertrandite Ore Gangue Dewatering.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Beryl Ore Processing.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Aluminum Iron Sludge (AIS) Area Wastewater.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Bertrandite Ore Leaching Scrubber.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.
NSPS for the Primary Beryllium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.155   [Reserved]
§ 421.156   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary beryllium process wastewater introduced into a POTW shall not exceed the following values:
(a) Solvent extraction raffinate from bertrandite ore.
PSNS for the Primary Beryllium Subcategory
(b) Solvent extraction raffinate from beryl ore.
PSNS for the Primary Beryllium Subcategory
(c) Beryllium carbonate filtrate.
PSNS for the Primary Beryllium Subcategory
(d) Beryllium Hydroxide Filtrate.
NSPS for the Primary Beryllium Subcategory
(e) Beryllium oxide calcining furnace wet air pollution control.
PSNS for the Primary Beryllium Subcategory
(f) Beryllium hydroxide supernatant
PSNS for the Primary Beryllium Subcategory
(g) Process water.
PSNS for the Primary Beryllium Subcategory
(h) Fluoride furnace scrubber.
PSNS for the Primary Beryllium Subcategory
(i) Chip treatment wastewater.
PSNS for the Primary Beryllium Subcategory
(j) Beryllium pebble plant area vent wet air pollution control
PSNS for the Primary Beryllium Subcategory
(k) Beryl Ore Gangue Dewatering.
PSNS for the Primary Beryllium Subcategory
(l) Bertrandite Ore Gangue Dewatering.
PSNS for the Primary Beryllium Subcategory
(m) Beryl Ore Processing.
PSNS for the Primary Beryllium Subcategory
(n) Aluminum Iron Sludge (AIS) Area Wastewater.
PSNS for the Primary Berryllium Subcategory
(o) Bertrandite Ore Leaching Scrubber.
PSNS for the Primary Beryllium Subcategory
(p) Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.
PSNS for the Primary Beryllium Subcategory
§ 421.157   [Reserved]
§ 421.180   Applicability: Description of the primary and secondary germanium and gallium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of germanium or gallium from primary and secondary germanium and gallium facilities.
§ 421.181   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.182   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Still liquor.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Chlorinator wet air pollution control.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Germanium hydrolysis filtrate.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Acid wash and rinse water.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Gallium hydrolysis filtrate.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Solvent extraction raffinate.
BPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.183   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Still liquor.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
(b) Chlorinator wet air pollution control.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
(c) Germanium hydrolysis filtrate.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
(d) Acid wash and rinse water.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
(e) Gallium hydrolysis filtrate.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
(f) Solvent extraction raffinate.
BAT Limitations for the Primary and Secondary Germanium and Gallium Subcategory
§ 421.184   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Still liquor.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Chlorinator wet air pollution control.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Germanium hydrolysis filtrate.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Acid wash and rinse water.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Gallium hydrolysis filtrate.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Solvent extraction raffinate.
NSPS for the Primary and Secondary Germanium and Gallium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.185   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary and secondary germanium and gallium process wastewater introduced into a POTW must not exceed the following values:
(a) Still liquor.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
(b) Chlorinator wet air pollution control.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
(c) Germanium hydrolysis filtrate.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
(d) Acid wash and rinse water.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
(e) Gallium hydrolysis filtrate.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
(f) Solvent extraction raffinate.
PSES for the Primary and Secondary Germanium and Gallium Subcategory
§ 421.186   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary and secondary germanium and gallium process wastewater introduced into a POTW shall not exceed the following values:
(a) Still Liquor.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
(b) Chlorinator Wet Air Pollution Control.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
(c) Germanium Hydrolysis Filtrate.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
(d) Acid Wash and Rinse Water.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
(e) Gallium Hydrolysis Filtrate.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
(f) Solvent Extraction Raffinate.
PSNS for the Primary and Secondary Germanium and Gallium Subcategory
§ 421.187   [Reserved]
§ 421.190   Applicability: Description of the secondary indium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of indium at secondary indium facilities processing spent electrolyte solutions and scrap indium metal raw materials.
§ 421.191   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§§ 421.192-421.193   [Reserved]
§ 421.194   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Displacement Supernatant.
NSPS for the Secondary Indium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Spent Electrolyte.
NSPS for the Secondary Indium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.195   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary indium process wastewater introduced into a POTW must not exceed the following values:
(a) Displacement Supernatant.
PSES for the Secondary Indium Subcategory
(b) Spent Electrolyte.
PSES for the Secondary Indium Subcategory
§ 421.196   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary indium process wastewater introduced into a POTW should not exceed the following values:
(a) Displacement Supernatant.
PSNS for the Secondary Indium Subcategory
(b) Spent Electrolyte.
PSNS for the Secondary Indium Subcategory
§ 421.197   [Reserved]
§ 421.200   Applicability: Description of the secondary mercury subcategory.
The provision of this subpart are applicable to discharges resulting from the production of mercury from secondary mercury facilities processing recycled mercuric oxide batteries and other mercury containing scrap raw materials.
§ 421.201   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§§ 421.202-421.203   [Reserved]
§ 421.204   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Spent battery electrolyte.
NSPS for the Secondary Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Acid wash and rinse water.
NSPS for the Secondary Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Furnace wet air pollution control.
NSPS for the Secondary Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.205   [Reserved]
§ 421.206   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary mercury process wastewater introduced into a POTW shall not exceed the following values:
(a) Spent battery electrolyte.
PSNS for the Secondary Mercury Subcategory
(b) Acid wash and rinse water.
PSNS for the Secondary Mercury Subcategory
(c) Furnance wet air pollution control.
PSNS for the Secondary Mercury Subcategory
§ 421.207   [Reserved]
§ 421.210   Applicability: Description of the primary molybdenum and rhenium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of molybdenum and rhenium facilities.
§ 421.211   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.212   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitation representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Molybdenum sulfide leachate.
BPT Limitations for the Primary Molybdenum Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Roaster SO 2 scrubber.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Molybdic oxide leachate.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Hydrogen reduction furnace scrubber.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Depleted rhenium scrubbing solution.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.213   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Molybdenum sulfide leachate.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
(b) Roaster SO 2 scrubber.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
(c) Molybdic oxide leachate.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
(d) Hydrogen reduction furnace scrubber.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
(e) Depleted rhenium scrubbing solution.
BAT Limitations for the Primary Molybdenum and Rhenium Subcategory
§ 421.214   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Molybdenum sulfide leachate.
NSPS for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Roaster SO 2 scrubber.
NSPS for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Molybdic oxide leachate.
NSPS for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Hydrogen reduction furnace scrubber.
NSPS for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Depleted rhenium scrubbing solution.
NSPS for the Primary Molybdenum and Rhenium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.215   [Reserved]
§ 421.216   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary molybdenum and rhenium process wastewater introduced into a POTW shall not exceed the following values:
(a) Molybdenum sulfide leachate.
PSNS for the Primary Molybdenum and Rhenium Subcategory
(b) Roaster SO 2 scrubber.
PSNS for the Primary Molybdenum and Rhenium Subcategory
(c) Molybdic oxide leachate.
PSNS for the Primary Molybdenum and Rhenium Subcategory
(d) Hydrogen reduction furnace scrubber.
PSNS for the Primary Molybdenum and Rhenium Subcategory
(e) Depleted rhenium scrubbing solution.
PSNS for the Primary Molybdenum and Rhenium Subcategory
§ 421.217   [Reserved]
§ 421.220   Applicability: Description of the secondary molybdenum and vanadium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of molybdenum or vanadium by secondary molybdenum and vanadium facilities.
§ 421.221   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.222   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Leach tailings.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Molybdenum filtrate solvent extraction raffinate.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Vanadium decomposition wet air pollution control.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Molybdenum drying wet air pollution control.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Pure Grade Molybdenum.
BPT Limitations for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.223   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Leach Tailings.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
(b) Molybdenum filtrate solvent extraction raffinate.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
(c) Vanadium decomposition wet air pollution control.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
(d) Molybdenum drying wet air pollution control.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
(e) Pure Grade Molybdenum.
BAT Limitations for the Secondary Molybdenum and Vanadium Subcategory
§ 421.224   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Leach tailings.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Molybdenum filtrate solvent extraction raffinate.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Vanadium decomposition wet air pollution control.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Molybdenum drying wet air pollution control.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Pure Grade Molybdenum.
NSPS for the Secondary Molybdenum and Vanadium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.225   [Reserved]
§ 421.226   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary molybdenum and vanadium process wastewater introduced into a POTW shall not exceed the following values:
(a) Leach tailings.
PSNS for the Secondary Molybdenum and Vanadium Subcategory
(b) Molybdenum filtrate solvent extraction raffinate.
PSNS for the Secondary Molybdenum And Vanadium Subcategory
(c) Vanadium decomposition wet air pollution control.
PSNS for the Secondary Molybdenum and Vandadium Subcategory
(d) Molybdenum drying wet air pollution control.
PSNS for the Secondary Molybdenum and Vandadium Subcategory
(e) Pure Grade Molybdenum.
PSNS for the Secondary Molybdenum And Vanadium Subcategory
§ 421.227   [Reserved]
§ 421.230   Applicability: Description of the primary nickel and cobalt subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of nickel or cobalt by primary nickel and cobalt facilities processing ore concentrate raw materials.
§ 421.231   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.232   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Raw Material dust control.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Nickel wash water.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Nickel reduction decant.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Cobalt reduction decant.
BPT Limitations for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.233   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Raw material dust control.
BAT Limitations for the Primary Nickel and Cobalt Subcategory
(b) Nickel wash water.
BAT Limitations for the Primary Nickel and Cobalt Subcategory
(c) Nickel reduction decant.
BAT Limitations for the Primary Nickel and Cobalt Subcategory
(d) Cobalt reduction decant.
BAT Limitations for the Primary Nickel and Cobalt Subcategory
§ 421.234   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Raw Material Dust Control.
NSPS for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Nickel wash water.
NSPS for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Nickel reduction decant.
NSPS for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Cobalt reduction decant.
NSPS for the Primary Nickel and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.235   [Reserved]
§ 421.236   Pretreatment standards for new sources.
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 a 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary nickel and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Raw material dust control.
PSNS for the Primary Nickel and Cobalt Subcategory
(b) Nickel wash water.
PSNS for the Primary Nickel and Cobalt Subcategory
(c) Nickel reduction decant.
PSNS for the Primary Nickel and Cobalt Subcategory
(d) Cobalt reduction decant.
PSNS for the Primary Nickel and Cobalt Subcategory
§ 421.237   [Reserved]
§ 421.240   Applicability: Description of the secondary nickel subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of nickel by secondary nickel facilities processing slag, spent acids, or scrap metal raw materials.
§ 421.241   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR 401 shall apply to this subpart.
§§ 421.242-421.243   [Reserved]
§ 421.244   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Slag reclaim tailings.
NSPS for the Secondary Nickel Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Acid reclaim leaching filtrate.
NSPS for the Secondary Nickel Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Acid reclaim leaching belt filter backwash.
NSPS for the Secondary Nickel Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.245   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary nickel process wastewater introduced into a POTW must not exceed the following values:
(a) Slag reclaim tailings.
PSES for the Secondary Nickel Subcategory
(b) Acid reclaim leaching filtrate.
PSES for the Secondary Nickel Subcategory
(c) Acid reclaim leaching belt filter backwash
PSES for the Secondary Nickel Subcategory
§ 421.246   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary nickel process wastewater introduced into a POTW shall not exceed the following values:
(a) Slag reclaim tailings.
PSNS for the Secondary Nickel Subcategory
(b) Acid reclaim leaching filtrate.
PSNS for the Secondary Nickel Subcategory
(c) Acid reclaim leaching belt filter backwash.
PSNS for the Secondary Nickel Subcategory
§ 421.247   [Reserved]
§ 421.250   Applicability: Description of the primary precious metals and mercury subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of gold, silver, or mercury by primary precious metals and mercury facilities.
§ 421.251   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.252   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Smelter wet air pollution control.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Silver chloride reduction spent solution.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Electrolytic cells wet air pollution control.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Electrolyte preparation wet air pollution control.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Calciner wet air pollution control.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Calcine quench water.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Calciner stack gas contact cooling water.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Condenser blowdown.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Mercury cleaning bath water.
BPT Limitations for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.253   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Smelter wet air pollution control.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(b) Silver chloride reduction spent solution.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(c) Electrolytic cells wet air pollution control.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(d) Electrolyte preparation wet air pollution control.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(e) Calciner Wet Air Pollution Control.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(f) Calcine quench water.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(g) Calciner stack gas contact cooling water.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(h) Condenser blowdown.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
(i) Mercury cleaning bath water.
BAT Limitations for the Primary Precious Metals and Mercury Subcategory
§ 421.254   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Smelter wet air pollution control.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Silver chloride reduction spent solution.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Electrolytic cells wet air pollution control.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Electrolyte preparation wet air pollution control.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Calciner wet air pollution control.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Calcine quench water.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Calciner stack gas contract cooling water.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Condenser blowdown.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Mercury cleaning bath water.
NSPS for the Primary Precious Metals and Mercury Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.255   [Reserved]
§ 421.256   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary precious metals and mercury process wastewater introduced into a POTW shall not exceed the following values:
(a) Smelter wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory
(b) Silver chloride reduction spent solution.
PSNS for the Primary Precious Metals and Mercury Subcategory
(c) Electrolytic cells wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory
(d) Electrolyte preparation wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory
(e) Calciner wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory
(f) Calcine quench water.
PSNS for the Primary Precious Metals and Mercury Subcategory
(g) Calciner stack gas contact cooling water.
PSNS for the Primary Precious Metals and Mercury Subcategory
(h) Condenser blowdown.
PSNS for the Primary Precious Metals and Mercury Subcategory
(i) Mercury cleaning bath water.
PSNS for the Primary Precious Metals and Mercury Subcategory
§ 421.257   [Reserved]
§ 421.260   Applicability: Description of the secondary precious metals subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of precious metals at secondary precious metals facilities.
§ 421.261   Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
(b) The term precious metals shall mean gold, platinum, palladium, rhodium, iridium, osmium, and ruthenium.
(c) The term Combined Metals, shall mean the total of gold, platinum and palladium.
§ 421.262   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Furnace wet air pollution control.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Raw material granulation.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Spent plating solutions.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Spent cyanide stripping solutions.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Refinery wet air pollution control. 2
2 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at alltimes.
(f) Gold solvent extraction raffinate and wash water.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Gold spent electrolyte.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Gold precipitation and filtration.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Platinum precipitation and filtration.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Palladium precipitation and filtration.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Other platinum group metals precipitation and filtration.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Spent solution from PGC salt production.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Equipment and floor wash.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Preliminary treatment.
BPT Limitations for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.263   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Furnace wet air pollution control.
BAT Limitations for the Secondary Precious Metals Subcategory
(b) Raw material granulation.
BAT Limitations for the Secondary Precious Metals Subcategory
(c) Spent plating solutions.
BAT Limitations for the Secondary Precious Metals Subcategory
(d) Spent cyanide stripping solutions.
BAT Limitations for the Secondary Precious Metals Subcategory
(e) Refinery wet air pollution control 2 .
2 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
BAT Limitations for the Secondary Precious Metals Subcategory
(f) Gold solvent extraction raffinate and wash water.
BAT Limitations for the Secondary Precious Metals Subcategory
(g) Gold spent electrolyte.
BAT Limitations for the Secondary Precious Metals Subcategory
(h) Gold precipitation and filtration.
BAT Limitations for the Secondary Precious Metals Subcategory
(i) Platinum precipitation and filtration.
BAT Limitations for the Secondary Precious Metals Subcategory
(j) Palladium precipitation and filtration.
BAT Limitations for the Secondary Precious Metals Subcategory
(k) Other platinum group metals precipitation and filtration.
BAT Limitations for the Secondary Precious Metals Subcategory
(l) Spent solutions from PGC salt production.
BAT Limitations for the Secondary Precious Metals Subcategory
(m) Equipment and floor wash.
BAT Limitations for the Secondary Precious Metals Subcategory
(n) Preliminary treatment.
BAT Limitations for the Secondary Precious Metals Subcategory
§ 421.264   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Furnace wet air pollution control.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Raw material granulation.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Spent plating solutions.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Spent cyanide stripping solutions.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Refinery wet air pollution control 2 .
2 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Gold solvent extraction raffinate and wash water.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Gold spent electrolyte.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Gold precipitation and filtration.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Platinum precipitation and filtration.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Palladium precipitation and filtration.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.00 at all times.
(k) Other platinum group metals precipitation and filtration.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Spent solution from PGC salt production.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Equipment and floor wash.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Preliminary treatment.
NSPS for the Secondary Precious Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.265   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary precious metals process wastewater introduced into a POTW must not exceed the following values:
(a) Furnace wet air pollution control.
PSES for the Secondary Precious Metals Subcategory
(b) Raw material granulation.
PSES for the Secondary Precious Metals Subcategory
(c) Spent plating solutions.
PSES for the Secondary Precious Metals Subcategory
(d) Spent Cyanide stripping solutions.
PSES for the Secondary Precious Metals Subcategory
(e) Refinery wet air pollution control. 1
1 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
PSES for the Secondary Precious Metals Subcategory
(f) Gold solvent extraction raffinate and wash water.
PSES for the Secondary Precious Metals Subcategory
(g) Gold spent electrolyte.
PSES for the Secondary Precious Metals Subcategory
(h) Gold precipitation and filtration.
PSES for the Secondary Precious Metals Subcategory
(i) Platinum precipitation and filtration.
PSES for the Secondary Precious Metals Subcategory
(j) Palladium precipitation and filtration.
PSES for the Secondary Precious Metals Subcategory
(k) Other platinum group metals precipitation and filtration.
PSES for the Secondary Precious Metals Subcategory
(l) Spent solution from PGC salt production.
PSES for the Secondary Precious Metals Subcategory
(m) Equipment and floor wash.
PSES for the Secondary Precious Metals Subcategory
(n) Preliminary Treatment.
PSES for the Secondary Precious Metals Subcategory
§ 421.266   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary precious metals process wastewater introduced into a POTW shall not exceed the following values:
(a) Furnace wet air pollution control.
PSNS for the Secondary Precious Metals Subcategory
(b) Raw material granulation.
PSNS for the Secondary Precious Metals Subcategory
(c) Spent plating solutions.
PSNS for the Secondary Precious Metals Subcategory
(d) Spent cyanide stripping solutions.
PSNS for the Secondary Precious Metals Subcategory
(e) Refinery Wet Air Pollution Control. 1
1 This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility the same allowance applies to each.
PSNS for the Secondary Precious Metals Subcategory
(f) Gold solvent extraction raffinate and wash water.
PSNS for the Secondary Precious Metals Subcategory
(g) Gold spent electrolyte.
PSNS for the Secondary Precious Metals Subcategory
(h) Gold precipitation and filtration.
PSNS for the Secondary Precious Metals Subcategory
(i) Platinum precipitation and filtration.
PSNS for the Secondary Precious Metals Subcategory
(j) Palladium precipitation and filtration.
PSNS for the Secondary Precious Metals Subcategory
(k) Other platinum group metals precipitation and filtration.
PSNS for the Secondary Precious Metals Subcategory
(l) Spent solution from PGC salt production.
PSNS for the Secondary Precious Metals Subcategory
(m) Equipment and floor wash.
PSNS for the Secondary Precious Metals Subcategory
(n) Preliminary treatment.
PSNS for the Secondary Precious Metals Subcategory
§ 421.267   [Reserved]
§ 421.270   Applicability: Description of the primary rare earth metals subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of rare earth metals and mischmetal by primary rare earth metals facilities processing rare earth metal oxides, chlorides, and fluorides.
§ 421.271   Specialized definitions.
In addition to what is provided below:
(a) The general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
(b) The term rare earth metals refers to the elements scandium, yttrium, and lanthanum to lutetium, inclusive.
(c) The term mischmetal refers to a rare earth metal alloy comprised of the natural mixture of rare earths to about 94-99 percent. The balance of tha alloy includes traces of other elements and one to two percent iron.
§§ 421.272-421.273   [Reserved]
§ 421.274   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Dryer Vent Water Quench and Scrubber.
NSPS for the Primary Rare Earth Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Dryer vent caustic wet air pollution control.
NSPS for the Primary Rare Earth Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Electrolytic cell water quench and scrubber.
NSPS for the Primary Rare Earth Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Electrolytic cell caustic wet air pollution control.
NSPS for the Primary Rare Earth Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Sodium hypochlorite filter backwash.
NSPS for the Primary Rare Earth Metals Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.275   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary rare earth metals process wastewater introduced into a POTW must not exceed the following values:
(a) Dryer vent water quench scrubber.
PSES for the Primary Rare Earth Metals Subcategory
(b) Dryer vent caustic wet air pollution control.
PSES for the Primary Rare Earth Metals Subcategory
(c) Electrolytic cell water quench and scrubber.
PSES for the Primary Rare Earth Metals Subcategory
(d) Electrolytic cell caustic wet air pollution control.
PSES for the Primary Rare Earth Metals Subcategory
(e) Sodium hypochlorite filter backwash.
PSES for the Primary Rare Earth Metals Subcategory
§ 421.276   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary rare earth metals process wastewater introduced into a POTW shall not exceed the following values:
(a) Dryer vent water quench and scrubber.
PSNS for the Primary Rare Earth Metals Subcategory
(b) Dryer vent caustic wet air pollution control.
PSNS for the Primary Rare Earth Metals Subcategory
(c) Electrolytic cell water quench and scrubber.
PSNS for the Primary Rare Earth Metals Subcategory
(d) Electrolytic cell caustic wet air pollution control.
PSNS for the Primary Rare Earth Metals Subcategory
(e) Sodium hypochlorite filter backwash.
PSNS for the Primary Rare Earth Metals Subcategory
§ 421.277   [Reserved]
§ 421.280   Applicability: Description of the secondary tantalum subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of tantalum at secondary tantalum facilities.
§ 421.281   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.282   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Tantalum alloy leach and rinse.
BPT Limitations for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Capacitor leach and rinse.
BPT Limitations for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tantalum sludge leach and rinse.
BPT Limitations for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Tantalum powder acid wash and rinse.
BPT Limitations for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Leaching wet air pollution control.
BPT Limitations for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.283   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Tantalum alloy leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
(b) Capacitor leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
(c) Tantalum sludge leach and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
(d) Tantalum powder acid wash and rinse.
BAT Limitations for the Secondary Tantalum Subcategory
(e) Leaching wet air pollution control.
BAT Limitations for the Secondary Tantalum Subcategory
§ 421.284   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tantalum alloy leach and rinse.
NSPS for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Capacitor leach and rinse.
NSPS for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tantalum sludge leach and rinse.
NSPS for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Tantalum powder acid wash and rinse.
NSPS for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Leaching wet air pollution control.
NSPS for the Secondary Tantalum Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.285   [Reserved]
§ 421.286   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary tantalum process wastewater introduced into a POTW shall not exceed the following values:
(a) Tantalum alloy leach and rinse.
PSNS for the Secondary Tantalum Subcategory
(b) Capacitor leach and rinse.
PSNS for the Secondary Tantalum Subcategory
(c) Tantalum sludge leach and rinse.
PSNS for the Secondary Tantalum Subcategory
(d) Tantalum powder acid wash and rinse.
PSNS for the Secondary Tantalum Subcategory
(e) Leaching wet air pollution control.
PSNS for the Secondary Tantalum Subcategory
§ 421.287   [Reserved]
§ 421.290   Applicability: Description of the secondary tin subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin facilities utilizing either pyrometallurgical or hydrometallurgical processes to recover tin from secondary materials.
§ 421.291   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.292   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Tin smelter SO 2 scrubber.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Dealuminizing rinse.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tin mud acid neutralization filtrate.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Tin hydroxide wash.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Spent electrowinning solution from new scrap.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Spent electrowinning solution from municipal solid waste.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Tin hydroxide supernatant from scrap.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Tin hydroxide supernatant from plating solutions and sludges.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Tin hydroxide filtrate.
BPT Limitations for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.293   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Tin smelter SO 2 scrubber.
BAT Limitations for the Secondary Tin Subcategory
(b) Dealuminizing rinse.
BAT Limitations for the Secondary Tin Subcategory
(c) Tin mud acid neutralization filtrate.
BAT Limitations for the Secondary Tin Subcategory
(d) Tin hydroxide wash.
BAT Limitations for the Secondary Tin Subcategory
(e) Spent electrowinning solution from new scrap.
BAT Limitations for the Secondary Tin Subcategory
(f) Spent electrowinning solution from municipal solid waste.
BAT Limitations for the Secondary Tin Subcategory
(g) Tin hydroxide supernatant from scrap.
BAT Limitations for the Secondary Tin Subcategory
(h) Tin hydroxide supernatant from plating solutions and sludges.
BAT Limitations for the Secondary Tin Subcategory
(i) Tin hydroxide filtrate.
BAT Limitations for the Secondary Tin Subcategory
§ 421.294   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tin smelter SO 2 scrubber.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Dealuminizing rinse.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tin mud acid neutralization filtrate.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Tin hydroxide wash.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Spent electrowinning solution from new scrap.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Spent electrowinning solution from municipal solid waste.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Tin hydroxide supernatant from scrap.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Tin hydroxide supernatant from plating solutions and sludges.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Tin hydroxide filtrate.
NSPS for the Secondary Tin Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.295   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in secondary tin process wastewater introduced into a POTW must not exceed the following values:
(a) Tin smelter SO 2 scrubber.
PSES for the Secondary Tin Subcategory
(b) Dealuminizing rinse.
PSES for the Secondary Tin Subcategory
(c) Tin mud acid neutralization filtrate.
PSES for the Secondary Tin Subcategory
(d) Tin hydroxide wash.
PSES for the Secondary Tin Subcategory
(e) Spent electrowinning solution from new scrap.
PSES for the Secondary Tin Subcategory
(f) Spent electrowinning solution from municipal solid waste.
PSES for the Secondary Tin Subcategory
(g) Tin hydroxide supernatant from scrap.
PSES for the Secondary Tin Subcategory
(h) Tin hydroxide supernatant from plating solutions and sludges.
PSES for the Secondary Tin Subcategory
(i) Tin hydroxide filtrate.
PSES for the Secondary Tin Subcategory
§ 421.296   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary tin process wastewater introduced into a POTW shall not exceed the following values:
(a) Tin smelter SO 2 scrubber.
PSNS for the Secondary Tin Subcategory
(b) Dealuminizing rinse.
PSNS for the Secondary Tin Subcategory
(c) Tin mud acid neutralization filtrate.
PSNS for the Secondary Tin Subcategory
(d) Tin hydroxide wash.
PSNS for the Secondary Tin Subcategory
(e) Spent electrowinning solution from new scrap.
PSNS for the Secondary Tin Subcategory
(f) Spent electrowinning solution from municipal solid waste.
PSNS for the Secondary Tin Subcategory
(g) Tin hydroxide supernatant from scrap.
PSNS for the Secondary Tin Subcategory
(h) Tin hydroxide supernatant from plating solutions and ludges.
PSNS for the Secondary Tin Subcategory
(i) Tin hydroxide filtrate.
PSNS for the Secondary Tin Subcategory
§ 421.297   [Reserved]
§ 421.300   Applicability: Description of the primary and secondary titanium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of titanium at primary and secondary titanium facilities. Facilities which only practice vacuum distillation for sponge purification and which do not practice electrolytic recovery of magnesium are exempt from regulations. All other primary and secondary titanium facilities are covered by these regulations.
§ 421.301   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.302   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Chlorination off-gas wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Chlorination area-vent wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) TiCl 4 handling wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Reduction area wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Melt cell wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Chlorine liquefaction wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Sodium reduction container reconditioning wash water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Chip crushing wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Acid leachate and rinse water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Sponge crushing and screening wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Acid pickle and wash water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Scrap milling wet air pollution control.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Scrap detergent wash water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Casting crucible wash water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Casting contact cooling water.
BPT Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.303   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Chlorination off-gas wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(b) Chlorination area-vent wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(c) TiCl 4 handling wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(d) Reduction area wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(e) Melt cell wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(f) Chlorine liquefaction wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(g) Sodium reduction container reconditioning wash water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(h) Chip crushing wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(i) Acid leachate and rinse water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(j) Sponge crushing and screening wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(k) Acid pickle and wash water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(l) Scrap milling wet air pollution control.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(m) Scrap detergent wash water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(n) Casting crucible wash water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
(o) Casting contact cooling water.
BAT Limitations for the Primary and Secondary Titanium Subcategory
§ 421.304   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Chlorination off-gas wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Chlorination area-vent wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.0 to 10.0 at all times.
(c) TiCl 4 handling wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Reduction area wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Melt cell wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Chlorine liquefaction wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Sodium reduction container reconditioning wash.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Chip crushing wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Acid leachate and rinse water.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Sponge crushing and screening wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Acid pickle and wash water.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Scrap milling wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Scrap detergent wash water.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Casting crucible wash water.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Casting contact cooling water.
NSPS for the Primary and Secondary Titanium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.305   Pretreatment standards for existing sources.
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. The mass of wastewater pollutants in primary and secondary titanium process wastewater introduced into a POTW must not exceed the following values:
(a) Chlorination off-gas wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(b) Chlorination Area-vent wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(c) TiCl 4 handling wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(d) Reduction area wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(e) Melt cell wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(f) Chlorine liquefaction wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(g) Sodium reduction container reconditioning wash water.
PSES for the Primary and Secondary Titanium Subcategory
(h) Chip crushing wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(i) Acid leachate and rinse water.
PSES for the Primary and Secondary Titanium Subcategory
(j) Sponge crushing and screening wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(k) Acid pickle and wash water.
PSES for the Primary and Secondary Titanium Subcategory
(l) Scrap milling wet air pollution control.
PSES for the Primary and Secondary Titanium Subcategory
(m) Scrap detergent wash water.
PSES for the Primary and Secondary Titanium Subcategory
(n) Casting crucible wash water.
PSES for the Primary and Secondary Titanium Subcategory
(o) Casting contact cooling water.
PSES for the Primary and Secondary Titanium Subcategory
§ 421.306   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary and secondary titanium process wastewater introduced into a POTW shall not exceed the following values:
(a) Chlorination off-gas wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(b) Chlorination area-vent wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(c) TiCl 4 handling wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(d) Reduction area wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(e) Melt cell wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(f) Chlorine liquefaction wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(g) Sodium reduction container reconditioning wash water.
PSNS for the Primary and Secondary Titanium Subcategory
(h) Chip crushing wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(i) Acid leachate and rinse water.
PSNS for the Primary and Secondary Titanium Subcategory
(j) Sponge crushing and screening wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(k) Acid pickle and wash water.
PSNS for the Primary and Secondary Titanium Subcategory
(l) Scrap milling wet air pollution control.
PSNS for the Primary and Secondary Titanium Subcategory
(m) Scrap detergent wash water.
PSNS for the Primary and Secondary Titanium Subcategory
(n) Casting crucible wash water.
PSNS for the Primary and Secondary Titanium Subcategory
(o) Casting contact cooling water.
PSNS for the Primary and Secondary Titanium Subcategory
§ 421.307   [Reserved]
§ 421.310   Applicability: Description of the secondary tungsten and cobalt subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of tungsten or cobalt at secondary tungsten and cobalt facilities processing tungsten or tungsten carbide scrap raw materials.
§ 421.311   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.312   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Tungsten detergent wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Tungsten leaching acid.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tungsten post-leaching wash and rinse.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Synthetic scheelite filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Tungsten carbide leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Tungsten carbide wash water.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Cobalt sludge leaching wet air pollution control.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Crystallization decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Acid wash decant.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Cobalt hydroxide filtrate.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Cobalt hydroxide filter cake wash.
BPT Limitations for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.313   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Tungsten detergent wash and rinse.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(b) Tungsten leaching acid.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(c) Tungsten post-leaching wash and rinse.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(d) Synthetic scheelite filtrate.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(e) Tungsten carbide leaching wet air pollution control.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(f) Tungsten carbide wash water.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(g) Cobalt sludge leaching wet air pollution control.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(h) Crystallization decant.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(i) Acid wash decant.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(j) Cobalt hydroxide filtrate.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
(k) Cobalt hydroxide filter cake wash.
BAT Limitations for the Secondary Tungsten and Cobalt Subcategory
§ 421.314   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tungsten detergent wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Tungsten leaching acid.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Tungsten post-leaching wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Synthetic scheelite filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Tungsten carbide leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Tungsten carbide wash water.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Cobalt sludge leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Crystallization decant.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Acid wash decant.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Cobalt hydroxide filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Cobalt hydroxide filter cake wash.
NSPS for the Secondary Tungsten and Cobalt Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.315   Pretreatment standards for existing sources.
Except as provided in 40 CFR 403.7, any existing source subject to this subpart which introduces polutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Tungsten detergent wash and rinse.
PSES for the Secondary Tungsten and Cobalt Subcategory
(b) Tungsten leaching acid.
PSES for the Secondary Tungsten and Cobalt Subcategory
(c) Tungsten post-leaching wash and rinse.
PSES for the Secondary Tungsten and Cobalt Subcategory
(d) Synthetic scheelite filtrate.
PSES for the Secondary Tungsten and Cobalt Subcategory
(e) Tungsten carbide leaching wet air pollution control.
PSES for the Secondary Tungsten and Cobalt Subcategory
(f) Tungsten carbide wash water.
PSES for the Secondary Tungsten and Cobalt Subcategory
(g) Cobalt sludge leaching wet air pollution control.
PSES for the Secondary Tungsten and Cobalt Subcategory
(h) Crystallization decant.
PSES for the Secondary Tungsten and Cobalt Subcategory
(i) Acid wash decant.
PSES for the Secondary Tungsten and Cobalt Subcategory
(j) Cobalt hydroxide filtrate.
PSES for the Secondary Tungsten and Cobalt Subcategory
(k) Cobalt hydroxide filter cake wash.
PSES for the Secondary Tungsten and Cobalt Subcategory
§ 421.316   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Tungsten detergent wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(b) Tungsten leaching acid.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(c) Tungsten post-leaching wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(d) Synthetic scheelite filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(e) Tungsten carbide leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(f) Tungsten carbide wash water.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(g) Cobalt sludge leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(h) Crystallization decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(i) Acid wash decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(j) Cobalt hydroxide filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory
(k) Cobalt hydroxide filter cake wash.
PSNS for the Secondary Tungsten and Cobalt Subcategory
§ 421.317   [Reserved]
§ 421.320   Applicability: Description of the secondary uranium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of uranium (including depleted uranium) by secondary uranium facilities.
§ 421.321   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.322   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practiacable technology currently available:
(a) Refinery sump filtrate.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Slag leach reslurry.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Solvent extraction raffinate filtrate.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Digestion wet air pollution control.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Evaporation and denitration wet air pollution control.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Hydrofluorination alkaline scrubber.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Hydrofluorination water scrubber.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Magnesium reduction and casting floor wash.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Laundry wastewater.
BPT Limitations for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.323   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Refinery sump filtrate.
BAT Limitations for the Secondary Uranium Subcategory
(b) Slag leach reslurry.
BAT Limitations for the Secondary Uranium Subcategory
(c) Solvent extraction raffinate filtrate.
BAT Limitations for the Secondary Uranium Subcategory
(d) Digestion wet air pollution control.
BAT Limitations for the Secondary Uranium Subcategory
(e) Evaporation and denitration wet air pollution control.
BAT Limitations for the Secondary Uranium Subcategory
(f) Hydrofluorination alkaline scrubber.
BAT Limitations for the Secondary Uranium Subcategory
(g) Hydrofluorination water scrubber.
BAT Limitations for the Secondary Uranium Subcategory
(h) Magnesium reduction and casting floor wash.
BAT Limitations for the Secondary Uranium Subcategory
(i) Laundry wastewater.
BAT Limitations for the Secondary Uranium Subcategory
§ 421.324   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Refinery sump filtrate.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Slag leach reslurry.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Solvent extraction raffinate filtrate.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) Digestion wet air pollution control.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Evaporation and denitration wet air pollution control
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Hydrofluorination alkaline scrubber.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Hydrofluorination water scrubber.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Magnesium reduction and casting floor wash.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Laundry wastewater.
NSPS for the Secondary Uranium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.325   [Reserved]
§ 421.326   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in secondary uranium process wastewater introduced into a POTW shall not exceed the following values:
(a) Refinery sump filtrate.
PSNS for the Secondary Uranium Subcategory
(b) Slag leach reslurry.
PSNS for the Secondary Uranium Subcategory
(c) Solvent extraction raffinate filtrate.
PSNS for the Secondary Uranium Subcategory
(d) Digestion wet air pollution control.
PSNS for the Secondary Uranium Subcategory
(e) Evaporation and denitration wet air pollution control.
PSNS for the Secondary Uranium Subcategory
(f) Hydrofluorination alkaline scrubber.
PSNS for the Secondary Uranium Subcategory
(g) Hydrofluorination water scrubber.
PSNS for the Secondary Uranium Subcategory
(h) Magnesium reduction and casting floor wash.
PSNS for the Secondary Uranium Subcategory
(i) Laundry wastewater.
PSNS for the Secondary Uranium Subcategory
§ 421.327   [Reserved]
§ 421.330   Applicability: Description of the primary zirconium and hafnium subcategory.
The provisions of this subpart are applicable to discharges resulting from the production of zirconium or hafnium at primary zirconium and hafnium facilities. There are two levels of BPT, BAT, NSPS, PSES and PSNS provisions for this subpart. Facilities which only produce zirconium or zirconium/nickel alloys by magnesium reduction of zirconium dioxide are exempt from regulations. All other facilities are subject to these regulations.
§ 421.331   Specialized definitions.
For the purpose of this subpart the general definitions, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.
§ 421.332   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Sand drying wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Sand chlorination off-gas wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Sand chlorination area-vent wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) SiCl 4 purification wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Feed makeup wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Iron extraction (MIBK) steam stripper bottoms.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Zirconium filtrate.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Hafnium filtrate.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Calcining caustic wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Pure chlorination wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Reduction area-vent wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Magnesium recovery off-gas wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Magnesium recovery area-vent wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0. .
(n) Zirconium chip crushing wet air pollution control.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Acid leachate from zirconium metal production.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(p) Acid leachate from zirconium alloy production.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(q) Leaching rinse water from zirconium metal production.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0.
(r) Leaching rinse water from zirconium alloy production.
BPT Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.333   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
(a) Sand drying wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(b) Sand chlorination off-gas wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(c) Sand chlorination area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(d) SiCl 4 purification wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(e) Feed makeup wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(f) Iron extraction (MIBK) steam stripper bottoms.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(g) Zirconium filtrate.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(h) Hafnium filtrate.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(i) Calcining caustic wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(j) Pure chlorination wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(k) Reduction area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(l) Magnesium recovery off-gas wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(m) Magnesium recovery area-vent wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(n) Zirconium chip crushing wet air pollution control.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(o) Acid leachate from zirconium metal production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(p) Acid leachate from zirconium alloy production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(q) Leaching rinse water from zirconium metal production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
(r) Leaching rinse water from zirconium alloy production.
BAT Limitations for the Primary Zirconium and Hafnium Subcategory
§ 421.334   Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Sand drying wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(b) Sand chlorination off-gas wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(c) Sand chlorination area-vent wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(d) SiC 14 purification wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(e) Feed makeup wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(f) Iron extraction (MIBK) steam stripper bottoms.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(g) Zirconium filtrate.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(h) Hafnium filtrate.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(i) Calcining caustic wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(j) Pure chlorination wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(k) Reduction area-vent wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(l) Magnesium recovery off-gas wet air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(m) Magnesium recovery area-vent wet air pollution control.
NSPS Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(n) Zirconium chip crushing west air pollution control.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(o) Acid leachate from zirconium metal production.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(p) Acid leachate from zirconium alloy production.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(q) Leaching rinse water from zirconium metal production.
NSPS Limitations for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
(r) Leaching rinse water from zirconium alloy production.
NSPS for the Primary Zirconium and Hafnium Subcategory
1 Within the range of 7.5 to 10.0 at all times.
§ 421.335   [Reserved]
§ 421.336   Pretreatment standards for new sources.
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. The mass of wastewater pollutants in primary zirconium and hafnium process wastewater introduced into a POTW shall not exceed the following values:
(a) Sand drying wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(b) Sand chlorination off-gas wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(c) Sand chlorination area vent wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(d) SiCl 4 purification wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(e) Feed makeup wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(f) Iron extraction (MIBK) steam stripper bottoms.
PSNS for the Primary Zirconium and Hafnium Subcategory
(g) Zirconium filtrate.
PSNS for the Primary Zirconium and Hafnium Subcategory
(h) Hafnium filtrate.
PSNS for the Primary Zirconium and Hafnium Subcategory
(i) Calcining caustic wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(j) Pure chlorination wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(k) Reduction area-vent wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(l) Magnesium recovery off-gas wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(m) Magnesium recovery area-vent wet air pollution control.
PSNS Limitations for the Primary Zirconium and Hafnium Subcategory
(n) Zirconium chip crushing wet air pollution control.
PSNS for the Primary Zirconium and Hafnium Subcategory
(o) Acid leachate from zirconium metal production.
PSNS for the Primary Zirconium and Hafnium Subcategory
(p) Acid leachate from zirconium alloy production.
PSNS for the Primary Zirconium and Hafnium Subcategory
(q) Leaching rinse water from zirconium metal production.
PSNS Limitations for the Primary Zirconium and Hafnium Subcategory
(r) Leaching rinse water from zirconium alloy production.
PSNS for the Primary Zirconium and Hafnium Subcategory
§ 421.337   [Reserved]