40 C.F.R. § 410.45
New source performance standards (NSPS).
Cite as 40 C.F.R. § 410.45 (2026)
Any new source subject to this subpart must achieve the following new source performance standards (NSPS): Simple Manufacturing Operations Pollutant or pollutant property NSPS Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per 1,000 lb) of product BOD 5 3.3 1.7 COD 41.7 26.9 TSS 8.8 3.9 Sulfide 0.20 0.10 Phenols 0.10 0.05 Total Chromium 0.10 0.05 pH 1 ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0 at all times. Note: Additional allocations for “commission finishers” are not available to new sources. Complex Manufacturing Operations Pollutant or pollutant property NSPS Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per 1,000 lb) of product BOD 5 3.7 1.9 COD 68.7 44.2 TSS 14.4 6.4 Sulfide 0.20 0.10 Phenols 0.10 0.05 Total Chromium 0.10 0.05 pH 1 ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0 at all times. Note: Additional allocations for “commission finishers” are not available to new sources. Desizing Pollutant or pollutant property NSPS Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (or pounds per 1,000 lb) of product BOD 5 5.5 2.8 COD 59.5 38.3 TSS 15.6 6.9 Sulfide 0.20 0.10 Phenols 0.10 0.05 Total Chromium 0.10 0.05 pH ( 1 ) ( 1 ) 1 Within the range 6.0 to 9.0 at all times. Note: Additional allocations for “commission finishers” are not available to new sources.