[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR464.34] [Page 581-586] 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. 464.34 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/ 1,000 kkg or lb/million lb of sand reclaimed; 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 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. 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).................................. 0.0129 0.0071 Lead (T).................................... 0.0237 0.0116 Zinc (T).................................... 0.0437 0.0165 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 any 1 day average average \1\ ------------------------------------------------------------------------ (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 Oil and grease................... 30 10 0.223 TTS.............................. 15 12 0.116 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1000 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. \3\ Within the range of 7.0 to 10.0 at all times. (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. 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).................................. 0.0129 0.0071 Lead (T).................................... 0.0353 0.0174 Zinc (T).................................... 0.0656 0.025 Oil and grease.............................. 1.34 0.446 TSS......................................... 1.7 0.67 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)....................... 0.29 0.16 0.0029 Lead (T)......................... 0.79 0.39 0.0098 Zinc (T)......................... 1.47 0.56 0.0179 Oil and grease................... 30 10 0.223 TTS.............................. 38 15 0.446 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 (5.35/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) 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. 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).................................. 0.0138 0.0076 Lead (T).................................... 0.0252 0.0124 Zinc (T).................................... 0.0466 0.0176 Oil and grease.............................. 1.43 0.476 TSS......................................... 0.713 0.571 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [[Page 582]] ------------------------------------------------------------------------ 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 Oil and grease................... 30 10 0.238 TSS.............................. 15 12 0.124 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ Kg/1000 kkg (pounds per million pounds) of metal poured. \2\ Within the range of 7.0 to 10.0 at all times. \3\ 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. 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).................................. 0.0138 0.0076 Lead (T).................................... 0.0376 0.0185 Zinc (T).................................... 0.0699 0.0266 Oil and grease.............................. 1.43 0.476 TSS......................................... 1.81 0.713 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)....................... 0.29 0.16 0.0031 Lead (T)......................... 0.79 0.39 0.0105 Zinc (T)......................... 1.47 0.56 0.019 Oil and grease................... 30 10 0.238 TSS.............................. 38 15 0.476 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ Kg/1000 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. \3\ Within the range of 7.0 to 10.0 at all times. (c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year. 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)................................ 0.218 0.12 Lead (T).................................. 0.398 0.195 Zinc (T).................................. 0.736 0.278 Total Phenols............................. 0.646 0.225 Oil and grease............................ 22.5 7.51 TSS....................................... 11.3 9.01 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)....................... 0.29 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 Oil and grease................... 30 10 3.76 TSS.............................. 15 12 1.95 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed. \2\ Within the range of 7.0 to 10.0 at all times. \3\ 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. 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)................................ 0.218 0.12 Lead (T).................................. 0.593 0.293 Zinc (T).................................. 1.1 0.421 Total phenols............................. 0.656 0.225 Oil and grease............................ 22.5 7.51 TSS....................................... 28.5 11.3 pH........................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to 10.0 at all times. [[Page 583]] ------------------------------------------------------------------------ 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 Oil and grease................... 30 10 3.76 TSS.............................. 38 15 7.51 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/62.3 millions Sm\3\ (pound per billion SCF) of air scrubbed. \2\ Within the range of 7.0 to 10.0 at all times. \3\ These concentrations must be multiplied by the ratio of (0.09/) where 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. 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)................................ 3.19 1.76 Lead (T).................................. 5.84 2.86 Zinc (T).................................. 10.8 4.07 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)....................... 0.29 0.16 0.716 Lead (T)......................... 0.53 0.26 1.65 Zinc (T)......................... 0.98 0.37 2.86 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. (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. 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)................................ 3.19 1.76 Lead (T).................................. 8.7 4.3 Zinc (T).................................. 16.2 6.17 Oil and grease............................ 330 110 TSS....................................... 419 165 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)....................... 0.29 0.16 0.716 Lead (T)......................... 0.79 0.39 2.42 Zinc (T)......................... 1.47 0.56 4.41 Oil and grease................... 30 10 55.1 TSS.............................. 38 15 110 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. (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. 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)................................ 1.02 0.561 Lead (T).................................. 1.86 0.911 Zinc (T).................................. 3.44 1.30 Total phenols............................. 3.01 1.05 Oil and grease............................ 105 35 TSS....................................... 52.6 42.1 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 ------------------------------------------------------------------------ (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 Oil and grease..................... 30 10 17.5 TSS................................ 15 12 9.11 pH................................. (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed. [[Page 584]] \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. \3\ Within the range of 7.0 to 10.0 at all times. (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. 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)................................ 1.02 0.561 Lead (T).................................. 2.77 1.37 Zinc (T).................................. 5.15 1.96 Total phenols............................. 3.01 1.05 Oil and grease............................ 105 35 TSS....................................... 133 52.6 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 ------------------------------------------------------------------------ (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...................... 0.38 0.3 0.701 Oil and grease..................... 30 10 17.5 TSS................................ 38 15 35 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 (0.42/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. (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. 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).................................. 0.0428 0.0236 Lead (T).................................... 0.0783 0.0384 Zinc (T).................................... 0.0145 0.0546 Oil and grease.............................. 4.43 1.48 TSS......................................... 2.22 1.77 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) \1\ Copper (T).......................... 0.29 0.16 0.0096 Lead (T)............................ 0.53 0.26 0.0222 Zinc (T)............................ 0.98 0.37 0.0384 Oil and grease...................... 30 10 0.738 TSS................................. 15 12 0.384 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 (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. 3 Within the range of 7.0 to 10.0 at all times. (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. 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).................................. 0.0428 0.0236 Lead (T).................................... 0.117 0.0576 Zinc (T).................................... 0.217 0.0827 Oil and grease.............................. 4.43 1.48 TSS......................................... 5.61 2.22 pH.......................................... (1) (1) ------------------------------------------------------------------------ 1 Within the range of 7.0 to 10.0 at all times. ------------------------------------------------------------------------ Maxium for Maximum for monthly Annual any 1 day average average1 ------------------------------------------------------------------------ (mg/1) \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 Oil and grease...................... 30 10 0.738 TSS................................. 38 15 1.48 pH.................................. (\3\) (\3\) (\3\) ------------------------------------------------------------------------ 1 kg/1,000 kkg (pounds per million) pounds of metal poured. [[Page 585]] \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. 3 Within the range of 7.0 to 10.0 at all times. (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. 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).................................. 0.0527 0.0291 Lead (T).................................... 0.0964 0.0473 Zinc (T).................................... 0.178 0.0673 Oil and grease.............................. 5.46 1.82 TSS......................................... 2.73 2.18 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)....................... 0.29 0.16 0.0118 Lead (T)......................... 0.53 0.26 0.0273 Zinc (T)......................... 0.98 0.37 0.0473 Oil and grease................... 30 10 0.909 TSS.............................. 15 12 0.473 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 (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. \3\ Within the range of 7.0 to 10.0 at all times. (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. 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).................................. 0.0527 0.0291 Lead (T).................................... 0.144 0.0709 Zinc (T).................................... 0.267 0.102 Oil and grease.............................. 5.46 1.82 TSS......................................... 6.91 2.73 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 ------------------------------------------------------------------------ (mg/l) \2\ (mg/1) \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 Oil and grease....................... 30 10 0.909 TSS.................................. 38 15 1.82 pH................................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1000 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. \3\ Within the range of 7.0 to 10.0 at all times. (i) Wet Sand Reclamation 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. NSPS ------------------------------------------------------------------------ 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 Oil and grease............................ 22.4 7.47 TSS....................................... 11.2 8.96 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)....................... 0.29 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 Oil and grease................... 30 10 3.73 TSS.............................. 15 12 1.94 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1,000 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. \3\ Within the range of 7.0 to 10.0 at all times. (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. [[Page 586]] NSPS ------------------------------------------------------------------------ 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 Oil and grease............................ 22.4 7.47 TSS....................................... 28.4 11.2 pH........................................ (\1\) (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.0 to at all times. ------------------------------------------------------------------------ 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 Oil and grease................... 30 10 3.73 TSS.............................. 38 15 7.47 pH............................... (\3\) (\3\) (\3\) ------------------------------------------------------------------------ \1\ kg/1,000 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. \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]