[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.24] [Page 569-571] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 464--METAL MOLDING AND CASTING POINT SOURCE CATEGORY--Table of Contents Subpart B--Copper Casting Subcategory Sec. 464.24 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 Sm\3\ 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).................................. 0.0307 0.0168 Lead (T).................................... 0.0211 0.0104 Zinc (T).................................... 0.0303 0.0116 Oil and grease.............................. 1.2 0.399 TSS......................................... 0.598 0.479 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 0.0068 Lead (T)......................... 0.53 0.26 0.006 Zinc (T)......................... 0.76 0.29 0.0072 Oil and grease................... 30 10 0.199 TSS.............................. 15 12 0.104 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 (4.8/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) Direct Chill 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)................................ 0.928 0.506 Lead (T).................................. 0.639 0.314 Zinc (T).................................. 0.916 0.35 Oil and grease............................ 36.2 12.1 TSS....................................... 18.1 14.5 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 0.205 Lead (T)......................... 0.53 0.26 0.181 Zinc (T)......................... 0.76 0.29 0.217 Oil and grease................... 30 10 6.03 TSS.............................. 15 12 3.13 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 (145/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) Dust Collection Scrubber Operations. [[Page 570]] NSPS ------------------------------------------------------------------------ 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)................................ 0.553 0.301 Lead (T).................................. 0.38 0.187 Zinc (T).................................. 0.545 0.208 Total phenols............................. 0.617 0.215 Oil and grease............................ 21.5 7.18 TSS....................................... 10.8 8.61 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 0.122 Lead (T)......................... 0.53 0.26 0.108 Zinc (T)......................... 0.76 0.29 0.129 Total phenols.................... 0.86 0.3 0.144 Oil and grease................... 30 10 3.59 TSS.............................. 15 12 1.87 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 (0.086/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) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters. (e) Investment Casting. NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per millions pounds) of metal poured ---------------- Copper (T)................................ 8.48 4.63 Lead (T).................................. 5.84 2.86 Zinc (T).................................. 8.37 3.19 Oil and grease............................ 330 110 TSS....................................... 165 132 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 1.87 Lead (T)......................... 0.53 0.26 1.65 Zinc (T)......................... 0.76 0.29 1.98 Oil and grease................... 30 10 55.1 TSS.............................. 15 12 28.6 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 (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. \3\ Within the range of 7.0 to 10.0 at all times. (f) Melting Furnace Scrubber Operations. NSPS ------------------------------------------------------------------------ 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)................................ 1.81 0.988 Lead (T).................................. 1.25 0.612 Zinc (T).................................. 1.79 0.673 Total phenols............................. 2.02 0.706 Oil and grease............................ 70.6 23.5 TSS....................................... 35.3 28.2 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 average1 ------------------------------------------------------------------------ (mg/l) \2\ (mg/l) \2\ Copper (T)......................... 0.77 0.42 0.4 Lead (T)........................... 0.53 0.26 0.353 Zinc (T)........................... 0.76 0.29 0.424 Total phenols...................... 0.86 0.3 0.471 Oil and grease..................... 30 10 11.8 TSS................................ 15 12 6.12 pH................................. (\3\) (\3\) (\3\) ------------------------------------------------------------------------ 1 kg/62.3 Sm 3 (pounds per billion SCF) of air scrubbed. \2\ These concentrations must be multiplied by the ratio of (0.282/x) where x is the actual normalized process waste-water 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. (g) 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)................................ 0.392 0.214 Lead (T).................................. 0.27 0.132 Zinc (T).................................. 0.387 0.148 Oil and grease............................ 15.3 5.09 TSS....................................... 7.63 6.11 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/1) \2\ (mg/1) \2\ Copper (T)....................... 0.77 0.42 0.0865 Lead (T)......................... 0.53 0.26 0.0763 Zinc (T)......................... 0.76 0.29 0.0916 Oil and grease................... 30 10 2.54 TSS.............................. 15 12 1.32 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1,000 kkg (pounds per million pound) of metal poured. \2\ These concentrations must be multiplied by the ratio of (61/x) where x is the actual normalized process waste-water flow (in gallons per 1,000 pounds of metal poured) for a specific plant. [[Page 571]] 3 Within the range of 7.0 to 10.0 at all times. [50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]