EPA · subbasin 21010004 · discharge permits by parameter

Nitrite + Nitrate total [as N] in subbasin 21010004

• 4Permits carrying a limit
• 6With a recorded exceedance
• 7,134Nationwide

A subbasin is a unit of the national Watershed Boundary Dataset, and water crosses state lines: a permit is placed here by the outfall EPA names as its representative discharge point.

4 of the permits in subbasin 21010004 carry a numeric limit on Nitrite + Nitrate total [as N], and 6 of those have a recorded exceedance. Nationwide the same parameter appears in 7,134 permits. A permit carrying several parameters is counted under each of them, so the parameter counts for one subbasin add up to more permits than it holds. The other parameters named in this subbasin are listed below.

Permits

Other pollutants in subbasin 21010004

• Turbidity 35
• Color [PT-CO units] 33
• Oxygen, dissolved [DO] 34
• BOD, 5-day, 20 deg. C 25
• Oxygen demand, chem. [high level] [COD] 3
• pH 42
• Solids, total suspended 22
• Solids, settleable 34
• Oil & Grease 14
• Nitrogen, total [as N] 4
• Phosphorus, total [as P] 20
• Cyanide, total [as CN] 5
• Sulfide, total [as S] 5
• Sulfate, total [as SO4] 14
• Fluoride, total [as F] 5
• Arsenic, total [as As] 6
• Cadmium, total [as Cd] 10
• Chromium, hexavalent [as Cr] 4
• Chromium, total [as Cr] 3
• Copper, total [as Cu] 31

Nitrite + Nitrate total [as N] nationwide · Subbasin 21010004, every permit

What this page shows

This page covers Clean Water Act discharge permits in watershed 21010004 with limits on Nitrite + Nitrate total [as N]. The figures list 4 permits in this watershed with a limit on this parameter and 14 permits in this watershed with a recorded violation of this parameter.