EPA · subbasin 21010002 · discharge permits by parameter

Chromium, hexavalent [as Cr] in subbasin 21010002

• 4Permits carrying a limit
• 1With a recorded exceedance
• 1,004Nationwide

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 21010002 carry a numeric limit on Chromium, hexavalent [as Cr], and 1 of those have a recorded exceedance. Nationwide the same parameter appears in 1,004 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

• 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
• Copper, total [as Cu] 35
• Lead, total [as Pb] 24
• Silver, total [as Ag] 4
• Zinc, total [as Zn] 17
• Coliform, fecal - % samples exceeding limit 8
• Phenol 3
• Nitrogen, ammonia, total [as NH3] 12
• Surfactants [MBAS] 8
• Flow, in conduit or thru treatment plant 31
• Chlorine, total residual 30

Chromium, hexavalent [as Cr] nationwide · Subbasin 21010002, every permit

What this page shows

This page covers Clean Water Act discharge permits in watershed 21010002 with limits on Chromium, hexavalent [as Cr]. It lists 4 permits in this watershed with a limit on this parameter and 7 permits in this watershed with a recorded violation of this parameter.