40 C.F.R. § 469.42
New source performance standards (NSPS).
Cite as 40 C.F.R. § 469.42 (2026)
Any new source subject to this subpart must achieve the following new source performance standards (NSPS): Pollutant or pollutant property Maximum for any 1 day Monthly average shall not exceed Milligrams per liter (mg/l) pH ( 1 ) ( 1 ) Cadmium 0.55 0.26 Antimony 0.10 0.04 Zinc 1.64 0.67 Fluoride 35.0 18.0 TSS 60.0 31.0 1 Within the range of 6.0 to 9.0.