Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

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 practicable control technology currently available (BPT): Effluent Limitations Effluent characteristic Maximum for any 1 day Average of Daily values for 30 consecutive days shall not exceed (Metric units, kg/kkg of product; English units, pounds per 1,000 lb of product) Total suspended solids 0.100 0.050 Copper 0.0017 0.0008 Cadmium 0.00006 0.00003 Lead 0.0006 0.0026 Zinc 0.0012 0.0003 pH ( 1 ) ( 1 ) 1 Within the range of 6.0 to 9.0.