kg/1,000 kkg (pounds per million pounds) of metal poured. 2 These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a spe3 Within the range of 7.0 to 10.0 at all times. (b) Die Casting Operations. cific plant NSPS (mg/1)2 (mg)2 Copper 0.77 0.42 0.345 Lead (T) 0.53 0.26 0.304 Zinc (T) .. 0.76 0.29 0.365 Total phenols 0.86 0.3 0.406 Oil and grease 30 10 10.1 TSS 15 12 5.27 pH (3) (*) (3) kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed. 2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. Within the range of 7.0 to 10.0 at all times. kg/1,000 kkg (pounds per million pounds) of metal poured (mg) ? (mg) 2 Copper 0.77 0.42 0.0015 Lead (T) 0.53 0.26 0.0013 Zinc (T) 0.76 0.29 0.0016 Total phenols 0.86 0.3 0.0017 Oil and grease 30 10 0.0432 TSS 15 12 0.0225 (3) (3) kg/1,000 kkg (pounds per million pounds) of metal poured. pH Annual av Maximum for any 1 day Maximum for monthly aver age (c) Melting Furnace Scrubber Operations. erage' (mg) 2 (mg/l) 2 Copper (T) 0.77 0.42 0.067 Lead (T) 0.53 0.26 0.0591 Zinc (T) 0.76 0.29 0.071 Oil and grease 30 10 1.97 TSS 15 12 1.03 PH (3) (3) (3) kg/1,000 kkg (pounds per million pounds) of metal poured. 2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. 3 Within the range of 7.0 to 10.0 at all times. (50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986) 60.8 20.3 465.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. 465.33 New source performance standards. 465.34 Pretreatment standards for existing sources. 465.35 Pretreatment standards for new sources. Subpart D-Canmaking Subcategory 465.40 Applicability: description of the canmaking subcategory. 465.41 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. 465.42 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. 465.43 New source performance standards. 465.44 Pretreatment standards for existing sources. 465.45 Pretreatment standards for new sources. 465.46 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Re served] AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 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) (the “Act'); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92–500; 91 Stat. 1567, Pub. L. 95–217. SOURCE: 47 FR 54244, Dec. 1, 1982, unless otherwise noted. coated stock. Usually cleaning, conversion coating, and painting are performed on the basis material. This regulation covers processes which perform any two or more of the three operations. (C) "Basis material” means the coiled strip which is processed. (d) “Area processed" means the area actually exposed to process solutions. Usually this includes both sides of the metal strip. (e) “Steel basis material” means cold rolled steel, hot rolled steel, and chrome, nickel and tin coated steel which are processed in coil coating. (f) "Galvanized basis material" means zinc coated steel, galvalum, brass and other copper base strip which is processed in coil coating. (g) “Aluminum basis material" means aluminum, aluminum alloys and aluminum coated steels which are processed in coil coating. (h) The term “can” means a container formed from sheet metal and consisting of a body and two ends or a body and a top. (i) The term "canmaking" means the manufacturing process processes used to manufacture a can from a basic metal. (j) The term “Total Toxic Organics (TTO)” shall mean the sum of the mass of each of the following toxic organic compounds which are found at a concentration greater than 0.010 mg/1. 1,1,1-Trichloroethane 1,1-Dichloroethane 1,1,2,2-Tetrachloroethane Bis (2-chloroethyl) ether Chloroform 1,1-Dichloroethylene Methylene chloride (dichloromethane) Pentachlorophenol Bis (2-ethylhexyl) phthalate Butyl benzyl-phthalate Di-N-butyl phthalate Phenanthrene Tetrachloroethylene Toluene [47 FR 54244, Dec. 1, 1982, as amended at 48 FR 52399, Nov. 17, 1983) or GENERAL PROVISIONS $ 465.01 Applicability. This part applies to any coil coating facility or to any canmaking facility that discharges pollutants to waters of the United States or that introduces pollutants to a publicly owned treatment works. [48 FR 52399, Nov. 17, 1983) 8 465.02 General definitions. In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part: (a) “Coil” means a strip of basis material rolled into a roll for handling. (b) “Coil coating ” means the process of converting basis material strip into $ 465.03 Monitoring and reporting re quirements. The following special monitoring requirements apply to all facilities controlled by this regulation. (a) Periodic analyses for cyanide are not required when both of the following conditions are met: (1) The first wastewater sample taken in each calendar year has been analyzed and found to contain less than 0.07 mg/l cyanide (2) The owner or operator of the coil coating facility certifies in writing to the POTW authority or permit issuing authority that cyanide is not used in the coil coating process. (b) 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 dischar limit is required regardless of the number of samples analyzed and averaged. (c) The following determination method shall be used for the determination of the concentration of oil and grease in wastewater samples from all subcategories of coil coating (Based on Standard Methods, 15th Edition, Methods 503A and 503E). In this method, a partition gravimetric procedure is used to determine hydrocarbon (petroleum based) oil and grease (O&G-E). (1) Apparatus. (i) Separatory funnel, 1 liter, with TFE1 stopcock. (ii) Glass stoppered flask, 125 ml. (vii) Magnetic stirrer and Teflon coated stir bar. (2) Reagents. (i) Hydrochloric acid, HCl, 1+1. (ii) Trichlorotrifluoroethane. 3 (1,1,2trichloro-1,2,2-trifluoroethane), boiling point 47 °C. The solvent should leave no measurable residue on evaporation; distill if necessary. Do not use any plastic tubing to transfer solvent between containers. (iii) Sodium sulfate, Na2 SO4, anhydrous crystal. (iv) Silica gel, 60 to 200 mesh. 4 Dry at 110 °C for 24 hours and store in a tightly sealed container. (3) Procedure. To determine hydrocarbon oil and grease, collect about 1 liter of sample and mark sample level in bottle for later determination of sample volume. Acidify to pH 2 or lower; generally, 5 ml HCl is sufficient. Transfer to a separatory funnel. Carefully rinse sample bottle with 30 ml trichlorotrifluoroethane and add solvent washings to separatory funnel. Preferably shake vigorously for 2 minutes. However, if it is suspected that a stable emulsion will form, shake gently for 5 to 10 minutes. Let layers separate. Drain solvent layer through a funnel containing solvent-moistened filter paper into a tared clean flask. If a clear solvent layer cannot be obtained, add lg Na2 SO4 to the filter paper cone and slowly drain emulsified solvent onto the crystals. Add more Na2 SO4 if necessary. Extract twice more with 30 ml solvent each but first rinse sample container with each solvent portion. Combine extracts in tared flask and wash filter with an additional 10 to 20 ml. solvent. Add 3.0 g silica gel. Stopper flask and stir on a magnetic stirrer for 5 minutes. Filter solution through filter paper and wash silica gel and filter paper with 10 ml solvent and combine with filtrate in tared distilling flask. Distill solvent from distilling flask in a water bath at 70 °C. Place flask on a water bath at 70 °C for 15 minutes and draw air through it with an applied vacuum for the final 1 minute. Cool in a desiccator for 30 minutes and weigh. (4) Calculations—calculation of O&G-E. If the organic solvent is free of residue the gain in weight of the tared distilling flask is due to hydrocarbon oil and grease. Total gain in weight, E, is the amount of hydrocarbon oil and grease in the sample (mg): mg (hydrocarbon oil and grease) / 1 = Ex 1000 ml/sample (5) Use of O&G-E. The value, O&G-E shall be used as the measure of compliance with the oil and grease limitations and standards set forth in this regulation. (d) The owner or operator of any canmaking facility subject to the provisions of this regulation shall advise the permit issuing authority or POTW authority and the EPA Office of Water 1 Teflon® or equivalent. 2 Whatman No. 40 or equivalent. 3 Freon or equivalent. 4 Davidson Grade 950 or equivalent. |
