non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/l) limitations shall apply. Concentration limitation and annual average mass limitation shall only apply to non-continuous dischargers. (a) Casting Cleaning Operations. (mg/1)2 (mg/1)2 Copper (T) 0.77 0.0021 Lead (T) 0.79 0.0027 Zinc (T) 1.14 0.0033 Oil & grease 30 0.0605 TSS 38 0.121 PH (3) (3) (3) 1kg/1,000 kkg (pounds per million pounds) of metal poured. 2 These concentrations must be multiplied by the ratio of (1.45//) 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) Die Casting Operations. BPT EFFLUENT LIMITATIONS (mg1)2 (mg/1)2 Copper (T) 0.77 0.42 0.017 Lead (T) 0.79 0.39 0.022 Zinc (T) 1.14 0.43 0.027 Oil & grease 30 10 0.501 TSS 38 15 1.0 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 (12/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. BPT EFFLUENT LIMITATIONS kg/1,000 kkg (pounds per mil lion pounds) ot metal poured 1kg/1,000 kkg (pounds per million pounds) of metal poured. 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, (d) Dust Collection Scrubber Operations. Within the range of 7.0 to 10.0 at all times. Maximum for monthly aver age kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed (mg/l)a mg/1)2 Copper (T) 0.77 0.42 0.0511 Lead (T) 0.79 0.0661 Zinc (T) 1.14 0.43 0.0811 Total Phenols 0.86 0.3 0.0601 Oil & Grease 30 1.5 TSS 38 3.0 PH (3) (3) (3) kg/62.3 million SM3 (pounds per billion SCF) of air scrubbed. 2 These concentrations must be multiplied by the ratio of (0.036/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. (e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters. (f) Investment Casting. (mg/l) ? (mg/1) 2 Copper (T) 0.77 0.42 0.664 Lead (T) 0.79 0.39 0.859 Zinc (T) 1.14 0.43 1.05 Total phenols 0.86 0.3 0.781 Oil and grease 30 10 19.5 TSS 38 15 39.1 PH (2) (3) (3) *kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed. 2 These concentrations must be multiplied by the ratio of (0.468/x) where x is the acutal 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. (h) Mold Cooling Operations. Copper (T) 8.48 Lead (T) 8.7 Zinc (T) 12.6 Oil and grease 330 TSS 419 PH (9) Within the range of 7.0 to 10.0 at all times, 4.63 4.3 4.74 110 165 (") (mgl)' (mg) Copper (T) 0.77 0.42 0.0656 Lead (T) 0.79 0.39 0.0849 Zinc (T) 1.14 0.43 0.104 Oil and grease 30 10 1.93 TSS 38 15 3.86 PH () (3) (*) kg/1,000 kkg (pounds per million pounds) of metal 2 These concentrations must be multiplied by the ratio of (46 3x) where x is the actual normalized process wastewater flow (in gallons per 1.000 pounds of metal poured) for a specific plant. Within the range of 7.0 to 10.0 at all times. (mg1)2 (mg) 2 Copper (T) 0.77 0.42 0.017 Lead (T) 0.79 0.39 0.022 Zinc (T) 1.14 0.43 0.027 1kg/1,000 kkg (pounds per million pounds) of metal poured. ?These concentrations must be multiplied by the ratio of (127x) 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. (50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986) 464.13 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available tech nology 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/62.3 million Sm3 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 (mg/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers. (a) Casting Cleaning Operations. kg/1,000 kkg (pounds per mil lion pounds) of metal Copper (T) 0.0066 0.0036 0.0034 0.0037 0.0026 8.48 8.7 12.6 (mg/l) 2 (mg) 2 Copper (T) 0.77 0.42 0.0511 Lead (T) 0.79 0.39 0.0661 Zinc (T) 1.14 0.43 0.0811 Total Phenols 0.86 0.3 0.0601 1kg/62.3 million Sm3 (lb per billion SCF) of air scrubbed. 2 These concentrations must be multiplied by the ratio of (0.036/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant. (e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters. (f) Investment Casting. (mg/l) ? (mg/1) 2 Copper (T) 0.77 0.42 0.664 Lead (T) 0.79 0.39 0.859 Zinc (T) 1.14 0.43 1.05 Total phenols 0.86 0.3 0.781 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed 2 These concentrations must be multiplied by the ratio of (0.468/x) where x is the actual normalized process wastewater flow (in gallons per 1.000 SCF of air scrubbed) for a specific plant. (h) Mold Cooling Operations. BAT EFFLUENT LIMITATIONS kg/1,000 kkg (pounds per mil lion pounds) of metal poured kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T) Lead (T) Zinc (T) 4.63 4.3 4.74 Maximum for monthly average kg/1,000 kkg (pounds per mil lion pounds) of metal poured $ 464.14 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 Cleaning Operations. Oil and grease Maximum Maximum Annual for any 1 for monthly averday average age' (mg)2 (mg1)2 Copper (T) 0.77 0.42 0.0021 Lead (T) 0.79 0.39 0.0027 Zinc (T) 1.14 0.43 0.0033 30 10 0.0605 TSS 38 15 0.121 рн (>) (3) kg/1,000 kkg (pounds per million pounds) of metal poured. 2 These concentrations must be multiplied by the ratio of (1.45/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant Within the range of 7.0 to 10.0 at all times. (c) Die Casting Operations. Maximum Maximum Annual for any 1 for monthly aver day average age' (mg) 2 (mg) 2 Copper (T) 0.77 0.42 0.0015 Lead (T) 0.79 0.39 0.0019 Zinc (T) 1.14 0.43 0.0023 Total phenols 0.86 0.3 0.0017 Oil and grease 30 10 0.0432 TSS and 38 15 0.0864 pH (*) () (%) kg/1,000 kkg (pounds per million pounds) of metal poured. 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) 3 Within the range of 7.0 to 10.0 at all times. (d) Dust Collection Scrubber Operations. |