[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.33] [Page 576-580] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents Subpart C--Ferrous Casting Subcategory Sec. 464.33 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable. Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/1,000 kkg or lb/million lb of sand reclaimed; kg/62.3 million Sm\3\ or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non- continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration [[Page 577]] (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers. (a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0129 0.0071 Lead (T).................................... 0.0237 0.0116 Zinc (T).................................... 0.0437 0.0165 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum Maximum for Annual for any 1 monthly average \1\ day average ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ ........... Copper (T)......................... 0.29 0.16 0.0029 Lead (T)........................... 0.53 0.26 0.0067 Zinc (T)........................... 0.98 0.37 0.0116 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (5.33/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0129 0.0071 Lead (T).................................... 0.0353 0.0174 Zinc (T).................................... 0.0656 0.025 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum Maximum for Annual for any 1 monthly average \1\ day average ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)......................... 0.29 0.16 0.0029 Lead (T)........................... 0.79 0.39 0.0098 Zinc (T)........................... 1.47 0.56 0.0179 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (5.33/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/100 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0138 0.0076 Lead (T).................................... 0.0252 0.0124 Zinc (T).................................... 0.0466 0.0176 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l)\2\ (mg/l)\2\ Copper (T)........................ 0.29 0.16 0.0031 Lead (T).......................... 0.53 0.26 0.0071 Zinc (T).......................... 0.98 0.37 0.0124 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (5.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0138 0.0076 Lead (T).................................... 0.0376 0.0185 Zinc (T).................................... 0.0699 0.0266 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l)\2\ (mg/l)\2\ Copper (T)........................ 0.29 0.16 0.0031 Lead (T).......................... 0.79 0.39 0.0105 Zinc (T).......................... 1.47 0.56 0.019 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (5.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. [[Page 578]] (c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed ---------------- Copper (T)................................ 0.218 0.12 Lead (T).................................. 0.398 0.195 Zinc (T).................................. 0.736 0.278 Total phenols............................. 0.646 0.225 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l)\2\ (mg/l)\2\ Copper (T)....................... 0.29 0.16 0.0488 Lead (T)......................... 0.53 0.26 0.113 Zinc (T)......................... 0.98 0.37 0.195 Total phenols.................... 0.86 0.3 0.15 ------------------------------------------------------------------------ \1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed. \2\ These concentrations must be multiplied by the ratio of (0.09/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed ---------------- Copper (T)................................ 0.218 0.12 Lead (T).................................. 0.593 0.293 Zinc (T).................................. 1.1 0.421 Total phenols............................. 0.656 0.225 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l)\2\ (mg/l)\2\ Copper (T)....................... 0.29 0.16 0.0488 Lead (T)......................... 0.79 0.39 0.165 Zinc (T)......................... 1.47 0.56 0.3 Total phenols.................... 0.86 0.3 0.15 ------------------------------------------------------------------------ \1\ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed. \2\ These concentrations must be multiplied by the ratio of (0.09/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. (d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters. (e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured ---------------- Copper (T)................................ 3.19 1.76 Lead (T).................................. 5.84 2.86 Zinc (T).................................. 10.8 4.07 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)....................... 0.29 0.16 0.716 Lead (T)......................... 0.53 0.26 1.65 Zinc (T)......................... 0.98 0.37 2.86 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (1,320/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured ---------------- Copper (T)................................ 3.19 1.76 Lead (T).................................. 8.7 4.3 Zinc (T).................................. 16.2 6.17 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)....................... 0.29 0.16 0.716 Lead (T)......................... 0.79 0.39 2.42 Zinc (T)......................... 1.47 0.56 4.41 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (1,320/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are [[Page 579]] casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed ---------------- Copper (T)................................ 1.02 0.561 Lead (T).................................. 1.86 0.911 Zinc (T).................................. 3.44 1.3 Total Phenols............................. 3.01 1.05 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ .......... Copper (T)........................ 0.29 0.16 0.228 Lead (T).......................... 0.53 0.26 0.526 Zinc (T).......................... 0.98 0.37 0.911 Total Phenols..................... 0.86 0.3 0.701 ------------------------------------------------------------------------ \1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed \2\ These concentrations must be multiplied by the ratio of (0.42/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm\3\ (pounds per billion SCF) of air scrubbed ---------------- Copper (T)................................ 1.02 0.561 Lead (T).................................. 2.77 1.37 Zinc (T).................................. 5.15 1.96 Total Phenols............................. 3.01 1.05 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ .......... Copper (T)........................ 0.29 0.16 0.228 Lead (T).......................... 0.79 0.39 0.771 Zinc (T).......................... 1.47 0.56 1.4 Total Phenols..................... 0.86 0.3 0.701 ------------------------------------------------------------------------ \1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed. \2\ These concentrations must be multiplied by the ratio of (0.42/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. (g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0428 0.0236 Lead (T).................................... 0.0783 0.0384 Zinc (T).................................... 0.145 0.0546 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)........................ 0.29 0.16 0.0096 Lead (T).......................... 0.53 0.26 0.0222 Zinc (T).......................... 0.98 0.37 0.0384 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (17.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0428 0.0236 Lead (T).................................... 0.117 0.0576 Zinc (T).................................... 0.217 0.0827 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average\1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)........................ 0.29 0.16 0.0096 Lead (T).......................... 0.79 0.39 0.0325 Zinc (T).......................... 1.47 0.56 0.0591 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (17.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. [[Page 580]] BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0527 0.0291 Lead (T).................................... 0.0964 0.0473 Zinc (T).................................... 0.178 0.0673 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)....................... 0.29 0.16 0.0118 Lead (T)......................... 0.53 0.26 0.0273 Zinc (T)......................... 0.98 0.37 0.0473 ------------------------------------------------------------------------ \1\ Kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (21.8/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0527 0.0291 Lead (T).................................... 0.144 0.0709 Zinc (T).................................... 0.267 0.102 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)....................... 0.29 0.16 0.0118 Lead (T)......................... 0.79 0.39 0.04 Zinc (T)......................... 1.47 0.56 0.0728 ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (21.8/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. (i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting malleable iron where greater than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of sand reclaimed ---------------- Copper (T)................................ 0.217 0.12 Lead (T).................................. 0.396 0.194 Zinc (T).................................. 0.732 0.276 Total Phenols............................. 0.642 0.224 ------------------------------------------------------------------------ ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ ........... Copper (T)....................... 0.29 0.16 0.0485 Lead (T)......................... 0.53 0.26 0.112 Zinc (T)......................... 0.98 0.37 0.194 Total Phenols.................... 0.86 0.3 0.149 ------------------------------------------------------------------------ \1\ kg/1000 kkg (pounds per million pounds) of sand reclaimed. \2\ These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) for a specific plant. (2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year. BAT Effluent Limitations ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of sand reclaimed ---------------- Copper (T)................................ 0.217 0.12 Lead (T).................................. 0.59 0.291 Zinc (T).................................. 1.1 0.418 Total Phenols............................. 0.642 0.224 ------------------------------------------------------------------------ PSNS ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ ........... Copper (T)....................... 0.29 0.16 0.0485 Lead (T)......................... 0.79 0.39 0.164 Zinc (T)......................... 1.47 0.56 0.299 Total Phenols.................... 0.86 0.3 0.149 ------------------------------------------------------------------------ \1\ kg/1000 kkg (pounds per million pounds) of sand reclaimed. \2\ These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) for a specific plant. [50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986] [[Page 581]]