EPA · District of Columbia · discharge permits by parameter
Nitrogen, total [as N] in District of Columbia
- 6Permits carrying a limit
- 1With a recorded exceedance
- 9,258Nationwide
Permits
Other parameters in District of Columbia
- Solids, total suspended16
- pH12
- Flow, in conduit or thru treatment plant8
- Copper, total [as Cu]8
- Zinc, total [as Zn]7
- Lead, total [as Pb]7
- Indeno[1,2,3-cd]pyrene6
- Fluoranthene6
- Chrysene6
- Dibenz[a,h]anthracene6
- Benzo[a]pyrene6
- Benzo[a]anthracene6
- Benzo[b]fluoranthene6
- Oil & Grease6
- Pyrene6
- Benzo[k]fluoranthene6
- Chemical Oxygen Demand [COD]5
- Benzo[ghi]perylene5
- Anthracene5
- Phosphorus, total [as P]5
- Chlorine, total residual5
- Acenaphthylene5
- Fluorene5
- Phenanthrene5
- Acenaphthene5
- Naphthalene5
- Iron, total [as Fe]5
- Arsenic, total [as As]4
- Cadmium, total [as Cd]4
- Chlordane4
- E. coli3
- PCB-12423
- Heptachlor epoxide3
- PCB-12603
- Iron, total recoverable3
- DDT3
- PCB-12543