EPA · subbasin 21010002 · discharge permits by parameter

BOD, 5-day, 20 deg. C in subbasin 21010002

• 31Permits carrying a limit
• 32With a recorded exceedance
• 19,526Nationwide

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.

31 of the permits in subbasin 21010002 carry a numeric limit on BOD, 5-day, 20 deg. C, and 32 of those have a recorded exceedance. Nationwide the same parameter appears in 19,526 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 21010002

• Temperature, water deg. centigrade 32
• Turbidity 33
• Color [PT-CO units] 29
• Oxygen, dissolved [DO] 31
• pH 39
• Solids, total suspended 18
• Solids, settleable 32
• Oil & Grease 13
• Nitrogen, total [as N] 10
• Nitrite + Nitrate total [as N] 5
• Phosphorus, total [as P] 27
• Cyanide, total [as CN] 4
• Sulfate, total [as SO4] 23
• Arsenic, total [as As] 11
• Cadmium, total [as Cd] 10
• Chromium, hexavalent [as Cr] 4
• Copper, total [as Cu] 35
• Lead, total [as Pb] 24
• Silver, total [as Ag] 4
• Zinc, total [as Zn] 17

BOD, 5-day, 20 deg. C nationwide · Subbasin 21010002, every permit

What this page shows

This page covers Clean Water Act discharge permits in watershed 21010002 with limits on the pollutant parameter BOD, 5-day, 20 deg. C. It lists 31 permits in this watershed with a limit on this parameter and 34 permits in this watershed with a recorded violation of this parameter.