EPA · subbasin 04100002 · discharge permits by parameter

Selenium, dry weight in subbasin 04100002

• 20Permits carrying a limit
• 0With a recorded exceedance
• 2,642Nationwide

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.

20 of the permits in subbasin 04100002 carry a numeric limit on Selenium, dry weight, and 0 of those have a recorded exceedance. Nationwide the same parameter appears in 2,642 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 04100002

• pH 34
• Solids, total 20
• Solids, total suspended 34
• Nitrogen, ammonia total [as N] 25
• Phosphorus, total [as P] 24
• Chloride [as Cl] 11
• Sulfate, total [as SO4] 7
• Arsenic, dry weight 20
• Iron, total [as Fe] 3
• Selenium, total [as Se] 4
• Cyanide [A] 3
• Toxicity, choice of species 4
• Benzene, ethylbenzene, toluene, xylene combination 3
• Toluene 4
• Benzene 4
• Ethylbenzene 4
• Ethylbenzene 4
• Copper, dry weight 20
• Cadmium, dry weight 20
• Equipment inspection - visual 4

Selenium, dry weight nationwide · Subbasin 04100002, every permit

What this page shows

This page covers Clean Water Act discharge permits in watershed 04100002 with limits on the pollutant parameter Selenium, dry weight. The figures listed are 20 permits in this watershed with a limit on this parameter and 18 permits in this watershed with a recorded violation of this parameter.