Water Quality Standards and Assessment

Surface water management seeks to protect the quality of all waters of the state, including rivers, streams, bayous, lakes, reservoirs, wetlands, estuaries, and many other types of surface water. For more information on surface water quality data, standards, and assessment please email the Water Planning and Assessment Division.

Initiatives

• Louisiana Surface Water Monitoring and Assessment Program - Click here to view the Louisiana Monitoring Strategy document

  • LDEQ's Water Quality Subsegments - Click here to view a map of current Louisiana Subsegments
  • Quality Assurance Project Plan for the Ambient Water Quality Monitoring Network (QAPP_1004_R12)
  • Water Data Portal - Surface water quality data collected by LDEQ for various projects at locations throughout the state.
  • Louisiana Water Quality Integrated Report (305(b)/303(d)) - Surface water assessments to determine needs for protection and improvement of water quality.
  • Triennial Review - Surface Water Quality Standards for Louisiana
  • Louisiana Water Quality Regulations and Standards - Louisiana's Water Quality Regulations can be found at the link for Part IX: Water Quality, with Louisiana's Surface Water Quality Standards found in Chapter 11 of the document.

• Water Quality Trading - Click here to learn more about the Louisiana Water Quality Trading Program

• Nutrient Reduction and Management Strategy - Learn more about what Louisiana is doing to manage nutrients in state surface waters.

• LDEQ Mercury Initiative - LDEQ's program to reduce and where possible eliminate mercury releases to the environment.

  • Louisiana's Fishing and Swimming Advisories - Fish consumption and swimming advisories are issued jointly by the Louisiana Department of Health, Louisiana Department of Wildlife and Fisheries, and LDEQ.

• Harmful Algal Blooms (HABs) - Click the link for more information