EPA · subbasin 21010002 · discharge permits by parameter

Mercury, total [as Hg] in subbasin 21010002

• 20Permits carrying a limit
• 20With a recorded exceedance
• 5,569Nationwide

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 21010002 carry a numeric limit on Mercury, total [as Hg], and 20 of those have a recorded exceedance. Nationwide the same parameter appears in 5,569 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

• 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
• Cyanide, free available 11
• Sulfide-hydrogen sulfide [undissociated] 12
• Nitrite Plus Nitrate Total 3
• Whole Effluent Toxicity [WET] - P. promelas 11
• Whole Effluent Toxicity [WET] - D. magna 11
• Enterococci 4
• Solids, total dissolved 20
• Coliform, fecal general 11
• Coliform, total general 5
• BOD, 5-day, percent removal 8
• Solids, suspended percent removal 8
• Chemical Oxygen Demand [COD] 5
• Ammonia & ammonium- total 18

Mercury, total [as Hg] nationwide · Subbasin 21010002, every permit

What this page shows

This page covers Clean Water Act discharge permits in watershed 21010002 with limits on Mercury, total [as Hg]. It lists 20 permits in this watershed with a limit on this parameter and 26 permits in this watershed with a recorded violation of this parameter.