[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.44] [Page 596-597] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents Subpart D--Zinc Casting Subcategory Sec. 464.44 New source performance standards. Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/ 62.3 million Sm3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers. (a) Casting Quench Operations. NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0344 0.0187 Lead (T).................................... 0.0237 0.0116 Zinc (T).................................... 0.0339 0.0129 Oil and grease.............................. 1.34 0.446 TSS......................................... 0.67 0.536 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. ---------------------------------------------------------------------------------------------------------------- Maximum for Maximum for monthly Annual average any 1 day average \1\ ---------------------------------------------------------------------------------------------------------------- (mg/l)\2\ (mg/l)\2\ .............. Copper (T)......................................................... 0.77 0.42 0.0076 Lead (T)........................................................... 0.53 0.26 0.0067 Zinc (T)........................................................... 0.76 0.29 0.008 Oil and grease..................................................... 30 10 0.223 TSS................................................................ 15 12 0.116 pH................................................................. (\3\) (\3\) (\3\) ---------------------------------------------------------------------------------------------------------------- \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. \3\ Within the range of 7.0 to 10.0 at all times. (b) Die Casting Operations. NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------- Copper (T).................................. 0.0066 0.0036 Lead (T).................................... 0.0046 0.0022 Zinc (T).................................... 0.0066 0.0025 Total phenols............................... 0.0074 0.0026 Oil and grease.............................. 0.259 0.0864 TSS......................................... 0.13 0.104 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. ---------------------------------------------------------------------------------------------------------------- Maximum for Maximum for monthly Annual average any 1 day average \1\ ---------------------------------------------------------------------------------------------------------------- (mg/l) \2\ (mg/l) \2\ .............. Copper (T)......................................................... 0.77 0.42 0.0015 Lead (T)........................................................... 0.53 0.26 0.0013 Zinc (T)........................................................... 0.76 0.29 0.0016 Total phenols...................................................... 0.86 0.3 0.0017 Oil and grease..................................................... 30 10 0.0432 TSS................................................................ 15 12 0.0225 pH................................................................. (\3\) (\3\) (\3\) ---------------------------------------------------------------------------------------------------------------- \1\kg/1,000 kkg (pounds per million pounds) of metal poured. [[Page 597]] \2\These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. \3\Within the range of 7.0 to 10.0 at all times. (c) Melting Furnace Scrubber Operations. NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed ---------------- Copper (T)................................ 1.56 0.852 Lead (T).................................. 1.07 0.527 Zinc (T).................................. 1.54 0.588 Total phenols............................. 1.74 0.608 Oil and grease............................ 60.8 20.3 TSS....................................... 30.4 24.3 pH........................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. ---------------------------------------------------------------------------------------------------------------- Maximum for Maximum for monthly Annual average any 1 day average \1\ ---------------------------------------------------------------------------------------------------------------- (mg/l)\2\ (mg/l)\2\ .............. Copper (T)......................................................... 0.77 0.42 0.345 Lead (T)........................................................... 0.53 0.26 0.304 Zinc (T)........................................................... 0.76 0.29 0.365 Total phenols...................................................... 0.86 0.3 0.406 Oil and grease..................................................... 30 10 10.1 TSS................................................................ 15 12 5.27 pH................................................................. (\3\) (\3\) (\3\) ---------------------------------------------------------------------------------------------------------------- \1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed. \2\ These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. \3\ Within the range of 7.0 to 10.0 at all times. (d) Mold Cooling Operations. NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured ---------------- Copper (T)................................ 0.304 0.166 Lead (T).................................. 0.209 0.103 Zinc (T).................................. 0.3 0.114 Oil and grease............................ 11.8 3.94 TSS....................................... 5.91 4.73 pH........................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------ Maximum for Maximum for monthly Annual any 1 day average average \1\ ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ ........... Copper (T).................... 0.77 0.42 0.067 Lead (T)...................... 0.53 0.26 0.0591 Zinc (T)...................... 0.76 0.29 0.071 Oil and grease................ 30 10 1.97 TSS........................... 15 12 1.03 pH............................ (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pounds) of metal poured. \2\ These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant. \3\ Within the range of 7.0 to 10.0 at all times. [50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]