Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards: (a) Slag reclaim tailings. NSPS for the Secondary Nickel Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of slag input to reclaim process Chromium (total) 5.653 2.313 Copper 24.410 12.850 Nickel 24.670 16.320 Total suspended solids 526.800 250.500 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (b) Acid reclaim leaching filtrate. NSPS for the Secondary Nickel Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of acid reclaim nickel produced Chromium (total) 2.198 0.899 Copper 9.491 4.995 Nickel 9.590 6.344 Total suspended solids 204.800 97.400 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (c) Acid reclaim leaching belt filter backwash. NSPS for the Secondary Nickel Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of acid reclaim nickel produced Chromium (total) 0.528 0.216 Copper 2.278 1.199 Nickel 2.302 1.523 Total suspended solids 49.160 23.380 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times.