Regulations last checked for updates: May 12, 2024

Title 40 - Protection of Environment last revised: May 09, 2024
Appendix - Table 5 to Part 455—BAT and NSPS Effluent Limitations for Priority Pollutants for Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment

[Micrograms per liter (µg/l)]

Pollutant Daily maximum shall not exceed Monthly average shall not exceed
1,1-Dichloroethylene6022
1,1,1-Trichloroethane5922
1,2-trans-Dichloroethylene6625
1,2-Dichlorobenzene794196
1,2-Dichloropropane794196
1,2-Dichloroethane574180
1,3-Dichloropropene794196
1,4-Dichlorobenzene380142
2,4-Dimethylphenol4719
Benzene13457
Bromodichloromethane380142
Bromomethane380142
Chlorobenzene380142
Chloromethane295110
Cyanide (Total)640220
Dibromochloromethane794196
Dichloromethane17036
Ethylbenzene380142
Lead (Total)690320
Naphthalene4719
Phenol4719
Tetrachloroethylene16452
Tetrachloromethane380142
Toluene7428
Tribromomethane794196
Trichloromethane325111
[58 FR 50698, Sept. 28, 1993]
authority: Secs. 301, 304, 306, 307, and 501, Pub. L. 92-500, 86 Stat. 816, Pub. L. 95-217, 91 Stat. 156, and Pub. L. 100-4 (33 U.S.C. 1311,1314,1316,1317,and
source: 43 FR 17776, Apr. 25, 1978, unless otherwise noted.