Draft Field-Based Methods for Developing Aquatic Life Criteria for Specific Conductivity

18 organizations filed 24 public comments on Draft Field-Based Methods for Developing Aquatic Life Criteria for Specific Conductivity, at the Environmental Protection Agency. The comment window closed 3482d ago.

Abstract

The EPA has developed a set of draft methods that states and authorized tribes may use to derive field-based ecoregional ambient aquatic life criteria for specific conductivity, a measurement of ionic concentration, in flowing waters. The EPA's methods provide flexible approaches for developing science-based conductivity criteria that reflect ecoregional- or state-specific factors. Once final, states and authorized tribes located in any region of the country may use the methods to develop field-based conductivity criteria for flowing waters. The draft document provides a scientific assessment of ecological effects and is not a regulation.

Commenters (18)

• American Petroleum Institutetrade assoc.

  2 filings · confidence 97%
• California Association of Sanitation Agenciestrade assoc.

  2 filings · confidence 85%
• National Association of Clean Water Agencies (NACWA)trade assoc.

  2 filings · confidence 97%
• on behalf of the Federal Water Quality Coalitiontrade assoc.

  2 filings · confidence 85%
• Sand & Gravel Associationtrade assoc.

  2 filings · confidence 85%
• United States Steel Corporationunverified attribution

  2 filings · confidence 70%
• AK Steel Corporationunverified attribution

  1 filing · confidence 70%
• American Iron and Steel Institutetrade assoc.

  1 filing · confidence 97%
• Colorado Mining Associationtrade assoc.

  1 filing · confidence 85%
• CONSOL Energy Inc.unverified attribution

  1 filing · confidence 70%
• Inc. ( NCASI)unverified attribution

  1 filing · confidence 70%
• National Mining Associationtrade assoc.

  1 filing · confidence 97%
• Texas Association of Clean Water Agenciestrade assoc.

  1 filing · confidence 85%
• The Chemours Companyunverified attribution

  1 filing · confidence 70%
• Virginia Coal and Energy Alliancetrade assoc.

  1 filing · confidence 85%
• Water Environment Federationtrade assoc.

  1 filing · confidence 85%
• Westmoreland Coal Companyunverified attribution

  1 filing · confidence 70%
• Wyoming Mining Associationtrade assoc.

  1 filing · confidence 85%