(mol) (mg) 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) 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. (mg/1)? (mg/l) 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) () 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 spe cific 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. Pollutant or pollutant prop erty Maximum for any 1 day Maximum for monthly aver age Copper (T) Lead (T) Zinc (T) Oil and grease kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed (mg/l) ? (mg/1) 2 0.16 0.0031 0.79 0.39 0.0105 1.47 0.56 0.019 30 10 0.238 TSS 38 15 0.476 pH (3) (3) (3) 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 speWithin 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. cific plant. (mg) 2 (mg1)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 Sm3 (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. 11.3 NSPS Lead (T) Zinc (T) Total phenols Oil and grease (mg/l) 2 (mg) 2 Copper (T) 0.29 0.16 0.0488 0.53 0.26 0.113 0.98 0.37 0.195 0.86 0.3 0.15 30 10 3.76 TSS 15 12 1.95 PH (3) (3) (3) 1kg/62.3 millions Sm3 (pound per billion SCF) of air scrubbed. 7.0 to 10 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. kg/1,000 kkg (pounds per million pounds) of metal poured 2 Within the range (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. 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. Zinc (T) (mg)2 (mg) 2 Copper (T) 0.29 0.228 Lead (T) 0.53 0.526 0.911 Total phenols 0.86 0.701 Oil and grease 30 17.5 TSS 15 9.11 pH (3) (3) 1 kg/62.3 million Sm3 (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. (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. pH 1 (mg)? (mg) 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) 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 Pollutant or pollutant property Maximum for any 1 day Maximum for monthly aver age kg/1,000 kkg (pounds per million pounds) of metal poured (mg/l)* (mg) 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) (>) kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed 2 These concentrations must be multiplied by the ratio of (0.42x) 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. (mg/1)2 (mg) 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) 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. (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 Within the range of 7.0 to 10.0 at all times. Pollutant or pollutant property Maximum for any 1 day Maximum for monthly aver age kg/1,000 kkg (pounds per million pounds) of metal poured cific plant Maximum for any 1 day Maximum for monthly average Annual aver 1 age kg/1,000 kkg (pounds per million) pounds of metal poured. 2 These concentrations must be multiplied by the ratio of (17.77x) 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. (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. (mol) ? (mg) 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) () 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 Maximum Annual for any 1 for monthly ave day average age (mg1)2 (mg1)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 рн () 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. NSPS kg/1,000 kkg (pounds per mit lion pounds) of sand reclaimed 15 (mg) 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 1.82 PH (3) (3) (3) 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 (mg/1) (mg/1)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) kg/1,000 kkg (pounds per million pounds) of sand te claimed. 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) Copper (T) 0.217 Lead (T) 0.396 Zinc (T) 0.732 Total phenols 0.642 Oil and grease 22.4 TSS 11.2 PH (") Within the range of 7.0 to 10.0 at all times. 0.12 0.194 0.276 0.224 7.47 8.96 (") $ 464.35 Pretreatment standards for existing sources. Except as provided in 40 CFR 403.7 and 403.13, any existing source subject |