EPA · Iowa · discharge permits by parameter

Oxygen, dissolved [DO] in Iowa

• 378Permits carrying a limit
• 198With a recorded exceedance
• 17,341Nationwide

A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Iowa permits that carry one for Oxygen, dissolved [DO]: 378 permits, of which 198 have a recorded exceedance. Nationwide the same parameter appears in 17,341 permits. Each row below is one permit, and it opens the agency’s own record for that permit.

Permits

Other pollutants in Iowa

• Temperature, water deg. fahrenheit 47
• Streamflow 6
• Stream flow, instantaneous 3
• Nitrogen, ammonia per cfs of streamflow 4
• BOD, 5-day, 20 deg. C 509
• Oxygen demand, chem. [high level] [COD] 17
• pH 1,164
• Alkalinity, total [as CaCO3] 4
• Solids, total suspended 1,048
• Solids, Settleable, Net 11
• Solids, settleable 47
• Oil & Grease 100
• Nitrogen, total [as N] 238
• Nitrogen, ammonia total [as N] 863
• Nitrogen, nitrate total [as N] 80
• Nitrogen, Kjeldahl, total [as N] 211
• Phosphorus, total [as P] 191
• Acids, total volatile [as acetic acid] 4
• Cyanide, total [as CN] 30
• Chloride [as Cl] 208

Oxygen, dissolved [DO] nationwide

What this page shows

This page covers Clean Water Act discharge permits in IA with limits on the pollutant parameter Oxygen, dissolved [DO]. It lists 378 permits in IA with a limit on this parameter and 341 permits in IA with a recorded violation of this parameter.