Water Quality Standards Regulations: Kentucky

Presented are water quality standards in effect for Clean Water Act (CWA) purposes for this state.

The EPA is posting these standards as a convenience to users and has made a reasonable effort to assure their accuracy. For each document listed under "State Standards in Effect for CWA Purposes", the EPA has made a reasonable effort to identify parts of the standards that are disapproved or are otherwise not in effect for CWA purposes. Additionally, please note the documents may also contain provisions that the EPA does not have the authority and duty to act on under the Clean Water Act because the provisions are not water quality standards.

• What is a New or Revised Water Quality Standard Under CWA 303(c)(3)? - Frequently Asked Questions (pdf) (108.04 KB)

• State Standards in Effect for CWA Purposes
• Federally Proposed or Promulgated Standards

---

State Standards in Effect for CWA Purposes

• 401 KAR 10:001 Definitions for 401 KAR Chapter 10 (pdf) (277.96 KB)
  (Effective June 2, 2020) This document establishes definitions used in 401 KAR Chapter 10.
• 401 KAR 10:026 Designation of Uses of Surface Waters (pdf) (694.96 KB)
  (Effective June 2, 2020)
• 401 KAR 10:029 General Provisions (pdf) (352.51 KB)
  (Effective June 2, 2020)
• 401 KAR 10:030 Antidegradation Policy Implementation Methodology (pdf) (544.7 KB)
  (Effective June 2, 2020)
• 401 KAR 10:031 Surface Water Standards (pdf) (482.84 KB)
  (Effective June 2, 2020)

---

Federally Proposed or Promulgated Standards

• None at this time.