40 CFR Part 467 — Aluminum Forming Point Source Category

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PART 467—ALUMINUM FORMING POINT SOURCE CATEGORY Authority: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) and the Water Quality Act of 1987 (the “Act”); 33 U.S.C. 1311, 1314(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), 1318 and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4. Source: 48 FR 49149, Oct. 24, 1983, unless otherwise noted. General Provisions § 467.01 Applicability. (a) Aluminum forming includes commonly recognized forming operations such as rolling, drawing, extruding, and forging and related operations such as heat treatment, casting, and surface treatments. Surface treatment of aluminum is any chemical or electrochemical treatment applied to the surface of aluminum. Such surface treatment is considered to be a part of aluminum forming whenever it is performed as an integral part of aluminum forming. For the purposes of this regulation, surface treatment of aluminum is considered to be an integral part of aluminum forming whenever it is performed at the same plant site at which aluminum is formed and such operations are not considered for regulation under the Electroplating and Metal Finishing provisions of 40 CFR parts 413 and 433. Casting aluminum when performed as an integral part of aluminum forming and located on-site at an aluminum forming plant is considered an aluminum forming operation and is covered under these guidelines. When aluminum forming is performed on the same site as primary aluminum reduction the casting shall be regulated by the nonferrous metals guidelines if there is no cooling of the aluminum prior to casting. If the aluminum is cooled prior to casting then the casting shall be regulated by the aluminum forming guidelines. (b) This part applies to any aluminum forming facility, except for plants identified under paragraph (c) of this section, which discharges or may discharge pollutants to waters of the United States or which introduces or may introduce pollutants into a publicly owned treatment works. (c) This part is applicable to indirect discharging aluminum forming plants that extrude less than 3 million pounds of product per year and draw, with emulsions or soaps, less than 1 million pounds per year. Note: This paragraph is promulgated as an Interim Final Rule. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984] § 467.02 General definitions. In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part: (a) Aluminum forming (b) Ancillary operation (c) Contact cooling water (d) Continuous casting (e) Degassing (f) Direct chill casting (g) Drawing (h) Emulsions (i) Cleaning or etching (j) Extrusion (k) Forging (l) Heat treatment (m) Hot water seal is a heated water bath (heated to approximately 180 °F) used to seal the surface coating on formed aluminum which has been anodized and coated. In establishing an effluent allowance for this operation, the hot water seal shall be classified as a cleaning or etching rinse. (n) In-process control technology (o) Neat oil (p) Rolling (q) The term Total Toxic Organics (TTO) p-chloro-m-cresol 2-chlorophenol 2,4-dinitrotoluene 1,2-diphenylhydrazine ethyblenzene fluoranthene isophorone napthalene N-nitro sodi phenyl amine phenol benzo(a) pyrene benzo(ghi)perylene fluorene phenanthrene dibenzo(a,h) anthracene indeno(1,2,3-c,d)pyrene pyrene tetrachloroethylene toluene trichloroethylene endosulfan sulfate bis(2-ethyl hexyl)phthalate diethylphthalate 3,4-benzofluoranthene benzo(k)fluoranthene chrysene acenaphthylene anthracene di-n-butyl phthalate endrin endrin aldehyde PCB-1242, 1254, 1221 PCB-1232, 1248, 1260, 1016 acenaphthene (r) Stationary casting (s) Wet scrubbers (t) BPT (u) BAT (v) BCT (w) NSPS (x) PSES (y) PSNS (z) The production normalizing mass (/kkg) for each core or ancillary operation is the mass (off-kkg or off-lb) processed through that operation. (aa) The term off-kilogram (off-pound) [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.03 Monitoring and reporting requirements. The following special monitoring and reporting requirements apply to all facilities controlled by this regulation. (a) Periodic analyses for cyanide as may be required under part 122 or 403 of this chapter are not required when both of the following conditions are met: (1) The first wastewater sample of each calendar year has been analyzed and found to contain less than 0.07 mg/l cyanide. (2) The owner or operator of the aluminum forming plant certifies in writing to the POTW authority or permit issuing authority that cyanide is not and will not be used in the aluminum forming process. (b) As an alternative monitoring procedure for pretreatment, the POTW user may measure and limit oil and grease to the levels shown in pretreatment standards in lieu of measuring and regulating total toxic organics (TTO). (c) The “monthly average” regulatory values shall be the basis for the monthly average discharge limits 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. (Information collection requirements in paragraph (a) were approved by the Office of Management and Budget under control number 2040-0033) [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984, as amended at 50 FR 4515, Jan. 31, 1985] § 467.04 Compliance date for PSES. The compliance date for Pretreatment Standards for Existing Sources (PSES) is October 24, 1986. [48 FR 49149, Oct. 24, 1983; 49 FR 11631, Mar. 27, 1984] § 467.05 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 467 when used as indicator pollutants. [49 FR 11631, Mar. 27, 1984] Subpart A—Rolling With Neat Oils Subcategory § 467.10 Applicability; description of the rolling with neat oils subcategory. This subpart applies to discharges of pollutants to waters of the United States, and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the rolling with neat oils subcategory. § 467.11 Specialized definitions. For the purpose of this subpart: (a) The “core” of the rolling with neat oils subcategory shall include rolling using neat oils, roll grinding, sawing, annealing, stationary casting, homogenizing artificial aging, degreasing, and stamping. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the rolling operation. The ancillary operations shall include continuous rod casting, continuous sheet casting, solution heat treatment, cleaning or etching. § 467.12 Effluent limitations 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 for the core operation and for the ancillary operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.0360 0.0147 Cyanide 0.0237 0.0098 Zinc 0.119 0.0498 Aluminum 0.525 0.257 Oil and grease 1.634 0.980 Suspended solids 3.348 1.593 pH ( 1 ( 1 1 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.0244 0.010 Cyanide 0.0161 0.0067 Zinc 0.0808 0.0338 Aluminum 0.356 0.174 Oil and grease 1.11 0.664 Suspended solids 2.27 1.079 pH ( 1 ( 1 1 Subpart A Continuous Sheet Casting Spent Lubricant Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum sheet cast by continuous methods Chromium 0.00086 0.00035 Cyanide 0.00057 0.00024 Zinc 0.0029 0.0012 Aluminum 0.0127 0.0063 Oil and grease 0.0393 0.0236 Suspended solids 0.0805 0.0383 pH ( 1 ( 1 1 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Bath Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.110 Aluminum 1.15 0.573 Oil and grease 3.58 2.15 Suspended solids 7.34 3.49 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 6.12 2.51 Cyanide 4.04 1.67 Zinc 20.31 8.49 Aluminum 89.46 44.52 Oil and grease 278.24 166.95 Suspended solids 570.39 271.29 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 7.00 2.86 Cyanide 4.61 1.91 Zinc 23.22 9.70 Aluminum 102.24 50.88 Oil and grease 318.00 190.80 Suspended solids 651.90 310.05 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984] § 467.13 Effluent limitations 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 must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.036 0.015 Cyanide 0.024 0.0098 Zinc 0.119 0.050 Aluminum 0.525 0.257 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.025 0.010 Cyanide 0.016 0.0067 Zinc 0.081 0.034 Aluminum 0.356 0.174 Subpart A Continuous Sheet Casting Spent Lubricant Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum sheet cast Chromium 0.00086 0.00035 Cyanide 0.00057 0.00024 Zinc 0.00287 0.0012 Aluminum 0.0127 0.0062 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.897 0.367 Cyanide 0.591 0.245 Zinc 2.974 1.243 Aluminum 13.10 6.518 Subpart A Cleaning or Etching Bath Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 Aluminum 1.151 0.573 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.612 0.251 Cyanide 0.404 0.167 Zinc 2.031 0.849 Aluminum 8.944 4.45 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.851 0.348 Cyanide 0.561 0.232 Zinc 2.822 1.179 Aluminum 12.43 6.186 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984] § 467.14 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. The mass of pollutants in the core and ancillary operations' process wastewater shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.030 0.0123 Cyanide 0.016 0.0065 Zinc 0.084 0.0343 Aluminum 0.499 0.221 Oil and grease 0.817 0.817 Suspended solids 1.225 0.980 pH ( 1 ( 1 1 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.021 0.0083 Cyanide 0.011 0.0044 Zinc 0.057 0.023 Aluminum 0.338 0.150 Oil and grease 0.553 0.553 Suspended solids 0.830 0.664 pH ( 1 ( 1 1 Subpart A Continuous Sheet Casting Spent Lubricant Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.00073 0.00029 Cyanide 0.00039 0.00016 Zinc 0.0020 0.00082 Aluminum 0.012 0.0053 Oil and grease 0.0197 0.019 Suspended solids 0.0295 0.022 pH ( 1 ( 1 1 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.066 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 Aluminum 8.50 3.70 Oil and grease 13.91 13.91 Suspended solids 20.87 16.69 pH ( 1 ( 1 1 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.715 0.29 Cyanide 0.387 0.16 Zinc 1.97 0.81 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984] § 467.15 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 aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.036 0.015 Cyanide 0.024 0.010 Zinc 0.119 0.050 TTO 0.057 Oil and grease (alternate monitoring parameter) 4.3 2.1 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.025 0.010 Cyanide 0.016 0.007 Zinc 0.081 0.034 TTO 0.038 Oil and grease (alternate monitoring parameter) 2.9 1.5 Subpart A Continuous Sheet Casting Lubricant Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.00086 0.00035 Cyanide 0.00057 0.00024 Zinc 0.0029 0.0012 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.10 0.052 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart A Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.61 0.25 Cyanide 0.41 0.17 Zinc 2.03 0.85 TTO 0.96 Oil and grease (alternate monitoring parameter) 73 36 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.82 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984, as amended at 53 FR 52369, 52370, Dec. 27, 1988] § 467.16 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 aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart A Core With an Annealing Furnace Scrubber Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.030 0.013 Cyanide 0.017 0.007 Zinc 0.084 0.035 TTO 0.057 Oil and grease (alternate monitoring parameter) 0.817 0.817 Subpart A Core Without an Annealing Furnace Scrubber Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils Chromium 0.021 0.009 Cyanide 0.011 0.005 Zinc 0.057 0.024 TTO 0.038 Oil and grease (alternate monitoring parameter) 0.54 0.54 Subpart A Continuous Sheet Casting Lubricant Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.00073 0.00029 Cyanide 0.00039 0.00016 Zinc 0.0020 0.00082 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.020 0.020 Subpart A Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart A Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart A Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart A Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984] § 467.17 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] Subpart B—Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the rolling with emulsions subcategory. § 467.21 Specialized definitions. For the purpose of this subpart: (a) The “core” of the rolling with emulsions subcategory shall include rolling using emulsions, roll grinding, stationary casting, homogenizing, artificial aging, annealing, and sawing. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the rolling operation. The ancillary operations shall include direct chill casting, solution heat treatment, cleaning or etching, and degassing. § 467.22 Effluent limitations 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. Subpart B Core Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions Chromium 0.057 0.024 Cyanide 0.038 0.016 Zinc 0.19 0.079 Aluminum 0.84 0.416 Oil and grease 2.60 1.56 Suspended solids 5.33 2.53 pH ( 1 ( 1 1 Subpart B Direct Chill Casting Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 Aluminum 8.55 4.26 Oil and grease 26.58 15.95 Suspended solids 54.49 25.92 pH ( 1 ( 1 1 Subpart B Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Bath Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 Aluminum 1.15 0.573 Oil and grease 3.58 2.15 Suspended solids 7.34 3.49 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Rinse Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 6.12 2.51 Cyanide 4.04 1.67 Zinc 20.31 8.49 Aluminum 89.46 44.52 Oil and grease 278.24 166.95 Suspended solids 570.39 271.29 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 7.00 2.86 Cyanide 4.61 1.91 Zinc 23.22 9.70 Aluminum 102.24 50.88 Oil and grease 318.00 190.80 Suspended solids 651.90 310.05 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.23 Effluent limitations 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 must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of process wastewater pollutants from the core shall not exceed the values set forth below: Subpart B Core Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions Chromium 0.057 0.024 Cyanide 0.038 0.016 Zinc 0.19 0.079 Aluminum 0.84 0.42 Subpart B Direct Chill Casting Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 Aluminum 8.55 4.26 Subpart B Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT Effluent Limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 Aluminum 13.10 6.52 Subpart B Cleaning or Etching Bath Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.26 0.109 Aluminum 1.15 0.573 Subpart B Cleaning or Etching Rinse Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.61 0.25 Cyanide 0.41 0.17 Zinc 2.03 0.85 Aluminum 8.95 4.45 Subpart B Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.82 1.18 Aluminum 12.43 6.19 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, Mar. 27, 1984] § 467.24 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. The discharge of process wastewater pollutants from the core shall not exceed the values set forth below: Subpart B Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions Chromium 0.048 0.020 Cyanide 0.026 0.011 Zinc 0.133 0.055 Aluminum 0.80 0.35 Oil and grease 1.30 1.30 Suspended solids 1.95 1.56 pH ( 1 ( 1 1 Subpart B Direct Chill Casting Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinuous methods Chromium 0.49 0.20 Cyanide 0.27 0.11 Zinc 1.36 0.56 Aluminum 8.12 3.60 Oil and grease 13.29 13.29 Suspended solids 19.94 15.95 pH ( 1 ( 1 1 Subpart B Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 Aluminum 8.50 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.70 pH ( 1 ( 1 1 Subpart B Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.25 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 aluminum forming process wastewater introduced into a POTW shall not exceed the following values: Subpart B Core Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions Chromium 0.057 0.024 Cyanide 0.038 0.016 Zinc 0.190 0.079 TTO 0.090 Oil and grease (alternate monitoring parameter) 6.8 3.4 Subpart B Direct Chill Casting Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast by semi-continuous methods Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 TTO 0.92 Oil and grease (alternate monitoring parameter) 69 35 Subpart B Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart B Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart B Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.61 0.25 Cyanide 0.41 0.17 Zinc 2.03 0.85 TTO 0.96 Oil and grease (alternate monitoring parameter) 73 36 Subpart B Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.83 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, 11633, Mar. 27, 1984, as amended at 53 FR 52369, 52370, Dec. 27, 1988] § 467.26 Pretreatment standards for new sources. Except as provided in § 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 process wastewater pollutants from the core and ancillary operations introduced into a POTW shall not exceed the values set forth below: Subpart B Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rolled with emulsions Chromium 0.048 0.020 Cyanide 0.026 0.011 Zinc 0.133 0.055 TTO 0.090 Oil and grease (alternate monitoring parameter) 1.30 1.30 Subpart B Direct Chill Casting Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinuous methods Chromium 0.49 0.20 Cyanide 0.27 0.11 Zinc 1.36 0.56 TTO 0.92 Oil and grease (alternate monitoring parameter) 13.29 13.29 Subpart B Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart B Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart B Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart B Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, Mar. 27, 1984] § 467.27 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] Subpart C—Extrusion Subcategory § 467.30 Applicability; description of the extrusion subcategory. This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core and the ancillary operations of the extrusion subcategory. § 467.31 Specialized definitions. For the purpose of this subpart: (a) The “core” of the extrusion subcategory shall include extrusion die cleaning, dummy block cooling, stationary casting, artificial aging, annealing, degreasing, and sawing. (b) The term “extrusion die cleaning” shall mean the process by which the steel dies used in extrusion of aluminum are cleaned. The term includes a dip into a concentrated caustic bath to dissolve the aluminum followed by a water rinse. It also includes the use of a wet scrubber with the die cleaning operation. (c) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the extrusion operation. The ancillary operations shall include direct chill casting, press or solution heat treatment, cleaning or etching, degassing, and extrusion press hydraulic fluid leakage. § 467.32 Effluent limitations 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: Subpart C Core Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.16 0.066 Cyanide 0.11 0.044 Zinc 0.53 0.22 Aluminum 2.34 1.16 Oil and grease 7.32 4.39 Suspended solids 15.0 7.13 pH ( 1 ( 1 1 Subpart C Extrusion Press Leakage Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.65 0.27 Cyanide 0.43 0.18 Zinc 2.16 0.90 Aluminum 9.51 4.73 Oil and grease 29.56 17.74 Suspended solids 60.60 28.82 pH ( 1 ( 1 1 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 Aluminum 8.55 4.26 Oil and grease 26.58 15.95 Suspended solids 54.49 25.92 pH ( 1 ( 1 1 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Bath Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.26 0.109 Aluminum 1.15 0.573 Oil and grease 3.58 2.15 Suspended solids 7.34 3.49 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 6.12 2.51 Cyanide 4.04 1.67 Zinc 20.31 8.49 Aluminum 89.46 44.52 Oil and grease 278.24 166.95 Suspended solids 570.39 271.29 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 7.00 2.86 Cyanide 4.61 1.91 Zinc 23.22 9.70 Aluminum 102.24 50.88 Oil and grease 318.00 190.80 Suspended solids 651.90 310.05 pH ( 1 ( 1 1 Subpart C Degassing Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum degassed Chromium 1.15 0.47 Cyanide 0.76 0.32 Zinc 3.81 1.59 Aluminum 16.78 8.35 Oil and grease 52.18 31.31 Suspended solids 106.97 50.88 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. (a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable: (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The discharge of wastewater pollutants from the core and ancillary operation except those in (b) of this section, shall not exceed the values set forth below: Subpart C Core Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.15 0.061 Cyanide 0.098 0.041 Zinc 0.49 0.21 Aluminum 2.19 1.09 Subpart C Extrusion Press Leakage Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.65 0.27 Cyanide 0.43 0.18 Zinc 2.16 0.90 Aluminum 9.51 4.73 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 Aluminum 8.55 4.26 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 Aluminum 13.10 6.52 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 Aluminum 13.10 6.52 Subpart C Cleaning or Etching Bath Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 Aluminum 1.15 0.58 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 1.7 0.7 Cyanide 1.2 0.5 Zinc 5.7 2.4 Aluminum 25 13 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.82 1.18 Aluminum 12.43 6.19 [48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, 11634, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.34 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. (a) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (b) The discharge of wastewater pollutants from the core and ancillary operations except those listed in paragraph (a) shall not exceed the values set forth below: Subpart C Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.13 0.051 Cyanide 0.068 0.027 Zinc 0.35 0.14 Aluminum 2.07 0.92 Oil and grease 3.39 3.39 Suspended solids 5.10 4.07 pH ( 1 ( 1 1 Subpart C Extrusion Press Leakage Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum extruded Chromium 0.11 0.045 Cyanide 0.060 0.024 Zinc 0.31 0.126 Aluminum 1.82 0.81 Oil and grease 2.98 2.98 Suspended solids 4.47 3.58 pH ( 1 ( 1 1 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast by semicontinuous methods Chromium 0.49 0.20 Cyanide 0.27 0.11 Zinc 1.36 0.56 Aluminum 8.12 3.60 Oil and grease 13.29 13.29 Suspended solids 19.94 15.95 pH ( 1 ( 1 1 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 Aluminum 8.50 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.70 pH ( 1 ( 1 1 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11634, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988] § 467.35 Pretreatment standards for existing sources. (a) 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. (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The mass of wastewater pollutants from the core and ancillary operations except those identified in paragraph (b), introduced into a POTW shall not exceed the following values: Subpart C Core Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of extruded Chromium 0.15 0.061 Cyanide 0.098 0.041 Zinc 0.49 0.21 TTO 0.23 Oil and grease (alternate monitoring parameter) 18 8.8 Subpart C Extrusion Press Leakage Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of extruded Chromium 0.65 0.27 Cyanide 0.43 0.18 Zinc 2.16 0.90 TTO 1.02 Oil and grease (alternate monitoring parameter) 77 39 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.59 0.24 Cyanide 0.39 0.16 Zinc 1.94 0.81 TTO 0.92 Oil and grease (alternate monitoring parameter) 69 35 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.90 0.37 Cyanide 0.59 0.25 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart C Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.26 0.109 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 1.7 0.7 Cyanide 1.2 0.5 Zinc 5.7 2.4 TTO 2.7 Oil & Grease (alternate monitoring parameter) 200 100 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.35 Cyanide 0.56 0.23 Zinc 2.82 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11634, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.36 Pretreatment standards for new sources. (a) 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. (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The mass of wastewater pollutants from the core and ancillary operations except those identified in paragraph (b) introduced into a POTW shall not exceed the values set forth below: Subpart C Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of extruded Chromium 0.13 0.05 Cyanide 0.07 0.03 Zinc 0.35 0.15 TTO 0.24 Oil and grease (alternate monitoring parameter) 3.40 3.40 Subpart C Extrusion Press Leakage Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of hard alloy aluminum extruded Chromium 0.11 0.05 Cyanide 0.06 0.03 Zinc 0.31 0.13 TTO 0.21 Oil and grease (alternate monitoring parameter) 2.98 2.98 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.49 0.20 Cyanide 0.27 0.11 Zinc 1.36 0.56 TTO 0.92 Oil and grease (alternate monitoring parameter) 13.29 13.29 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart C Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11634, Mar. 27, 1984] § 467.37 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] Subpart D—Forging Subcategory § 467.40 Applicability; description of the forging subcategory. This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core of the forging subcategory and the ancillary operations. § 467.41 Specialized definitions. For the purpose of this subpart: (a) The “core” of the forging subcategory shall include forging, artificial aging, annealing, degreasing, and sawing. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the forging operation. The ancillary operations shall include forging air pollution scrubbers, solution heat treatment, and cleaning or etching. § 467.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. [Reserved] § 467.43 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. [Reserved] § 467.44 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below: Subpart D Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.019 0.008 Cyanide 0.010 0.004 Zinc 0.051 0.021 Aluminum 0.305 0.135 Oil and grease 0.50 0.50 Suspended solids 0.75 0.60 pH ( 1 ( 1 1 Subpart D Forging Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.035 0.014 Cyanide 0.019 0.008 Zinc 0.096 0.04 Aluminum 0.576 0.256 Oil and grease 0.943 0.95 Suspended solids 1.42 1.13 pH ( 1 ( 1 1 Subpart D Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.163 Zinc 2.08 0.86 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart D Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.066 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart D Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 Aluminum 8.5 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.69 pH ( 1 ( 1 1 Subpart D Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.155 Zinc 1.97 0.812 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984] § 467.45 Pretreatment standards for existing sources. Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduced 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart D Core Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.022 0.009 Cyanide 0.015 0.006 Zinc 0.073 0.031 TTO 0.035 Oil and grease (alternate monitoring parameter) 2.6 1.3 Subpart D Forging Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.042 0.017 Cyanide 0.028 0.011 Zinc 0.14 0.058 TTO 0.065 Oil and grease (alternate monitoring parameter) 4.9 2.5 Subpart D Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.897 0.37 Cyanide 0.591 0.25 Zinc 2.98 1.24 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart D Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.26 0.11 TTO 0.123 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart D Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mb/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 1.7 0.7 Cyanide 1.2 0.5 Zinc 5.7 2.4 TTO 2.7 Oil and grease (alternate monitoring parameter) 200 100 Subpart D Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.851 0.35 Cyanide 0.561 0.23 Zinc 2.82 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11635, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.46 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart D Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.019 0.008 Cyanide 0.010 0.004 Zinc 0.051 0.021 TTO 0.035 Oil and grease (alternate monitoring parameter) 0.50 0.50 Subpart D Forging Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum forged Chromium 0.035 0.014 Cyanide 0.019 0.008 Zinc 0.096 0.040 TTO 0.065 Oil and grease (alternate monitoring parameter) 0.95 0.95 Subpart D Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.16 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart D Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart D Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart D Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.812 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, Mar. 27, 1984] § 467.47 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] Subpart E—Drawing With Neat Oils Subcategory § 467.50 Applicability; description of the drawing with neat oils subcategory. This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core of the drawing with neat oils subcategory and the ancillary operations. § 467.51 Specialized definitions. For the purpose of this subpart: (a) The “core” of the drawing with neat oils subcategory shall include drawing using neat oils, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operation shall include continuous rod casting, solution heat treatment, and cleaning or etching. § 467.52 Effluent limitations representing the degree of effluent reduction attainable by the application of 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 technology currently available: Subpart E Core Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/per million off-lbs) of aluminum drawn with neat oils Chromium 0.022 0.0090 Cyanide 0.015 0.0050 Zinc 0.073 0.031 Aluminum 0.32 0.160 Oil and grease 0.97 0.598 Suspended solids 2.04 0.972 pH ( 1 ( 1 1 Subpart E Continuous Rod Casting Spent Lubricant Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.00086 0.00035 Cyanide 0.00057 0.00024 Zinc 0.00287 0.0012 Aluminum 0.0127 0.0063 Oil and grease 0.0393 0.0236 Suspended solids 0.0805 0.0383 pH ( 1 ( 1 1 Subpart E Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.684 0.28 Cyanide 0.451 0.187 Zinc 2.271 0.949 Aluminum 10.00 4.976 Oil and grease 31.10 18.66 Suspended solids 63.76 30.322 pH ( 1 ( 1 1 Subpart E Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Bath Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.26 0.11 Aluminum 1.150 0.57 Oil and grease 3.58 2.15 Suspended solids 7.34 3.49 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Rinse Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 6.12 2.51 Cyanide 4.04 1.67 Zinc 20.31 8.49 Aluminum 89.46 44.52 Oil and grease 278.24 166.95 Suspended solids 570.39 271.29 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 7.00 2.86 Cyanide 4.61 1.91 Zinc 23.22 9.70 Aluminum 102.24 50.88 Oil and grease 318.00 190.8 Suspended solids 651.90 310.05 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984] § 467.53 Effluent limitations 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 must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below: Subpart E Core Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils Chromium 0.022 0.009 Cyanide 0.015 0.006 Zinc 0.073 0.031 Aluminum 0.321 0.16 Subpart E Continuous Rod Casting Spent Lubricant Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.00086 0.0004 Cyanide 0.0006 0.0002 Zinc 0.0029 0.0012 Aluminum 0.0127 0.0063 Subpart E Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.086 0.035 Cyanide 0.056 0.024 Zinc 0.283 0.118 Aluminum 1.247 0.621 Subpart E Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.896 0.367 Cyanide 0.591 0.245 Zinc 2.974 1.243 Aluminum 13.10 6.519 Subpart E Cleaning or Etching Bath Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 Aluminum 1.151 0.563 Subpart E Cleaning or Etching Rinse Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.612 0.251 Cyanide 0.404 0.167 Zinc 2.031 0.849 Aluminum 8.944 4.451 Subpart E Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.851 0.348 Cyanide 0.561 0.232 Zinc 2.82 1.179 Aluminum 12.43 6.19 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984] § 467.54 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below: Subpart E Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils Chromium 0.019 0.008 Cyanide 0.010 0.004 Zinc 0.051 0.021 Aluminum 0.304 0.135 Oil and grease 0.498 0.498 Suspended solids 0.747 0.598 pH ( 1 ( 1 1 Subpart E Continuous Rod Casting Spent Lubricant Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0008 0.0003 Cyanide 0.0004 0.0002 Zinc 0.002 0.0008 Aluminum 0.012 0.006 Oil and grease 0.02 0.02 Suspended solids 0.03 0.024 pH ( 1 ( 1 1 Subpart E Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.072 0.029 Cyanide 0.039 0.016 Zinc 0.198 0.082 Aluminum 1.185 0.526 Oil and grease 1.939 1.939 Suspended solids 2.909 2.327 pH ( 1 ( 1 1 Subpart E Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.754 0.306 Cyanide 0.408 0.163 Zinc 2.08 0.856 Aluminum 12.45 5.52 Oil and grease 20.37 20.37 Suspended solids 30.56 24.45 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.066 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.485 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.515 0.209 Cyanide 0.278 0.111 Zinc 1.42 0.584 Aluminum 8.50 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.70 pH ( 1 ( 1 1 Subpart E Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.715 0.290 Cyanide 0.387 0.155 Zinc 1.97 0.812 Aluminum 11.81 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984] § 467.55 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart E Core Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils Chromium 0.022 0.009 Cyanide 0.015 0.006 Zinc 0.073 0.031 TTO 0.035 Oil and grease (alternate monitoring parameter) 2.6 1.3 Subpart E Continuous Rod Casting Lubricant Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0009 0.0004 Cyanide 0.0006 0.0003 Zinc 0.0029 0.0012 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.10 0.052 Subpart E Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.086 0.035 Cyanide 0.057 0.023 Zinc 0.283 0.118 TTO 0.133 Oil and grease (alternate monitoring parameter) 10 5.1 Subpart E Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.896 0.367 Cyanide 0.591 0.245 Zinc 2.98 1.24 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart E Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.033 Cyanide 0.052 0.022 Zinc 0.262 0.109 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart E Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.612 0.251 Cyanide 0.404 0.17 Zinc 2.03 0.85 TTO 0.96 Oil and grease (alternate monitoring parameter) 73 36 Subpart E Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.851 0.348 Cyanide 0.561 0.232 Zinc 2.82 1.18 TTO 1.34 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11635, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.56 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart E Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils Chromium 0.019 0.008 Cyanide 0.010 0.004 Zinc 0.051 0.021 TTO 0.035 Oil and grease (alternate monitoring parameter) 0.50 0.50 Subpart E Continuous Rod Casting Lubricant Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0007 0.0003 Cyanide 0.0004 0.0002 Zinc 0.0020 0.0008 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.020 0.020 Subpart E Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.072 0.029 Cyanide 0.039 0.016 Zinc 0.198 0.134 TTO 0.082 Oil and grease (alternate monitoring parameter) 1.94 1.94 Subpart E Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.306 Cyanide 0.41 0.163 Zinc 2.08 0.856 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart E Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart E Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart E Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.812 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633,,11635, Mar. 27, 1984] § 467.57 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved] Subpart F—Drawing With Emulsions or Soaps Subcategory § 467.60 Applicability; description of the drawing with emulsions or soaps subcategory. This subpart applies to discharges of pollutants to waters of the United States and introduction of pollutants into publicly owned treatment works from the core and the ancillary operations of the drawing with emulsions or soaps subcategory. § 467.61 Specialized definitions. For the purpose of this subpart: (a) The “core” of the drawing with emulsions or soaps subcategory shall include drawing using emulsions or soaps, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging. (b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operations shall include continuous rod casting, solution heat treatment and cleaning or etching. § 467.62 Effluent limitations representing the degree of effluent reduction attainable by the application of 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: Subpart F Core Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.205 0.084 Cyanide 0.135 0.056 Zinc 0.680 0.285 Aluminum 3.00 1.50 Oil and grease 9.33 5.60 Suspended solids 19.12 9.10 pH ( 1 ( 1 1 Subpart F Continuous Rod Casting Spent Lubricant Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.0009 0.0004 Cyanide 0.0006 0.0003 Zinc 0.0029 0.001 Aluminum 0.013 0.007 Oil and grease 0.040 0.024 Suspended solids 0.081 0.039 pH ( 1 ( 1 1 Subpart F Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.684 0.28 Cyanide 0.450 0.187 Zinc 2.27 0.949 Aluminum 10.00 4.976 Oil and grease 31.10 18.66 Suspended solids 63.76 30.323 pH ( 1 ( 1 1 Subpart F Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 3.39 1.39 Cyanide 2.24 0.93 Zinc 11.25 4.70 Aluminum 49.55 24.66 Oil and grease 154.10 92.46 Suspended solids 315.91 150.25 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Bath Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.109 Aluminum 1.15 0.573 Oil and grease 3.58 2.15 Suspended solids 7.34 3.49 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Rinse Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 6.12 2.51 Cyanide 4.04 1.67 Zinc 20.31 8.49 Aluminum 89.46 44.519 Oil and grease 278.24 166.95 Suspended solids 570.39 271.29 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BPT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 7.00 2.86 Cyanide 4.61 1.91 Zinc 23.22 9.70 Aluminum 102.24 50.88 Oil and grease 318.00 190.80 Suspended solids 651.90 310.05 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984] § 467.63 Effluent limitations representing the degree of effluent reduction attainable by the application of best available technology economically achievable. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. The discharge of wastewater pollutants from the core shall not exceed the volumes set forth below: Subpart F Core Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.205 0.084 Cyanide 0.135 0.056 Zinc 0.681 0.285 Aluminum 3.00 1.49 Subpart F Continuous Rod Casting Spent Lubricant Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0009 0.0004 Cyanide 0.0006 0.0003 Zinc 0.0029 0.0012 Aluminum 0.013 0.0063 Subpart F Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.086 0.035 Cyanide 0.056 0.024 Zinc 0.283 0.118 Aluminum 1.25 0.62 Subpart F Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.897 0.37 Cyanide 0.591 0.25 Zinc 2.98 1.24 Aluminum 13.10 6.52 Subpart F Cleaning or Etching Bath Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.11 Aluminum 1.15 0.57 Subpart F Cleaning or Etching Rinse Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.612 0.251 Cyanide 0.404 0.167 Zinc 2.03 0.849 Aluminum 8.95 4.45 Subpart F Cleaning or Etching Scrubber Liquor Pollutant or pollutant property BAT effluent limitations Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.85 0.348 Cyanide 0.561 0.232 Zinc 2.82 1.18 Aluminum 12.43 6.19 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, 11636, Mar. 27, 1984] § 467.64 New source performance standards. Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core shall not exceed the values set forth below: Subpart F Core Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.173 0.070 Cyanide 0.094 0.038 Zinc 0.476 0.196 Aluminum 2.85 1.27 Oil and grease 4.67 4.67 Suspended solids 7.00 5.60 pH ( 1 ( 1 1 Subpart F Continuous Rod Casting Spent Lubricant Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0008 0.0003 Cyanide 0.0004 0.0002 Zinc 0.0020 0.0008 Aluminum 0.012 0.0053 Oil and grease 0.020 0.020 Suspended solids 0.030 0.024 pH ( 1 ( 1 1 Subpart F Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.072 0.029 Cyanide 0.039 0.016 Zinc 0.198 0.081 Aluminum 1.184 0.526 Oil and grease 1.940 1.940 Suspended solids 2.91 2.33 pH ( 1 ( 1 1 Subpart F Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.754 0.31 Cyanide 0.408 0.16 Zinc 2.08 0.86 Aluminum 12.450 5.52 Oil and grease 20.37 20.37 Suspended solids 20.56 24.45 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Bath Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.066 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 Aluminum 1.094 0.49 Oil and grease 1.79 1.79 Suspended solids 2.69 2.15 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Rinse Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.515 0.21 Cyanide 0.278 0.11 Zinc 1.42 0.59 Aluminum 8.50 3.77 Oil and grease 13.91 13.91 Suspended solids 20.87 16.70 pH ( 1 ( 1 1 Subpart F Cleaning or Etching Scrubber Liquor Pollutant or pollutant property NSPS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.72 0.290 Cyanide 0.387 0.155 Zinc 1.97 0.812 Aluminum 1.18 5.24 Oil and grease 19.33 19.33 Suspended solids 29.00 23.20 pH ( 1 ( 1 1 [48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11636, Mar. 27, 1984] § 467.65 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below: Subpart F Core Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.205 0.084 Cyanide 0.135 0.056 Zinc 0.681 0.285 TTO 0.32 Oil and grease (alternate monitoring parameter) 25 12 Subpart F Continuous Rod Casting Lubricant Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0009 0.0004 Cyanide 0.0006 0.0003 Zinc 0.0029 0.0012 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.10 0.052 Subpart F Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.086 0.035 Cyanide 0.056 0.024 Zinc 0.283 0.119 TTO 0.134 Oil and grease (alternate monitoring parameter 10 5.1 Subpart F Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthy average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.896 0.367 Cyanide 0.591 0.245 Zinc 2.98 1.25 TTO 1.41 Oil and grease (alternate monitoring parameter) 110 53 Subpart F Cleaning or Etching Bath Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthy average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.079 0.032 Cyanide 0.052 0.022 Zinc 0.262 0.11 TTO 0.124 Oil and grease (alternate monitoring parameter) 9.3 4.7 Subpart F Cleaning or Etching Rinse Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthy average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.612 0.251 Cyanide 0.404 0.167 Zinc 2.03 0.849 TTO 0.96 Oil and grease (alternate monitoring parameter) 73 36 Subpart F Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthy average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.851 0.348 Cyanide 0.561 0.232 Zinc 2.82 1.18 TTO 1.33 Oil and grease (alternate monitoring parameter) 100 50 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11636, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988] § 467.66 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 aluminum forming process wastewaters introduced into a POTW shall not exceed the values set forth below: Subpart F Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps Chromium 0.173 0.070 Cyanide 0.094 0.038 Zinc 0.48 0.196 TTO 0.32 Oil and grease (alternate monitoring parameter) 4.67 4.67 Subpart F Continuous Rod Casting Lubricant Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.0008 0.0003 Cyanide 0.0004 0.0002 Zinc 0.0020 0.0008 TTO 0.0014 Oil and grease (alternate monitoring parameter) 0.020 0.020 Subpart F Continuous Rod Casting Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum rod cast Chromium 0.072 0.029 Cyanide 0.039 0.016 Zinc 0.198 0.082 TTO 0.134 Oil and grease (alternate monitoring parameter) 1.94 1.94 Subpart F Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.306 Cyanide 0.41 0.163 Zinc 2.08 0.856 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart F Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart F Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart F Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched Chromium 0.715 0.290 Cyanide 0.387 0.155 Zinc 1.97 0.812 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11636, Mar. 27, 1984] § 467.67 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

40 CFR Part 467 — Aluminum Forming Point Source Category

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