Surface Water Quality Support Documents

Rules 

• Chapter 62-302, F.A.C.
• Chapter 62-303, F.A.C.
• Chapter 62-4, F.A.C.

Surface Water Classifications

• Process Document for Reclassifying Surface Waters
• List of Available Reports related to Surface Water Classifications

Outstanding Florida Waters

• Outstanding Florida Waters Factsheet
• Outstanding Florida Water Question and Answer Sheet
• List of Available Reports related to Outstanding Florida Waters

Numeric Nutrient Standards

• Implementation of Florida’s Numeric Nutrient Standards (effective date 11/25/2025)
• Development of Type III Site Specific Alternative Criteria for Nutrients
• Technical Support Document: Development of Numeric Nutrient Criteria for Florida Lakes, Spring Vents and Streams
• Lake Regions of Florida Report
  • Lake Regions of Florida Poster (Front)
  • Lake Regions of Florida Poster (Back)
• Map of Nutrient Watershed Regions (effective date 11/25/2025)
• Florida Marine Nutrient Regions Maps (effective date 11/25/2025)
• Florida Coastal (Offshore) Segments (effective date 11/25/2025)
• List of Nutrient TMDLs that are Hierarchy 1 Interpretations under Rule 62-302.531(2)(a), F.A.C.

Dissolved Oxygen Criteria (Rule 62-302.533, F.A.C.)

• DO Saturation Calculator (Microsoft Excel)
• DO Technical Support Document
• Appendix I of the DO TSD (effective date 11/25/2025)

Surface Water Quality Criteria

• Alternative Surface Water Quality Standards
• Metals Criteria Calculator (Microsoft Excel)
• Guidance for Establishing a Metals Translator
• Data Quality Screening Protocol

Ammonia Criteria

• Total Ammonia Nitrogen Calculator (Microsoft Excel)-  Total Ammonia Criteria and Un-ionized ammonia spreadsheet for calculations (MS Excel)
• Unionized Ammonia SOP - Discussion of the calculation of this species
• Unionized Ammonia Calculation (FDEP vs EPA) - Discussion of the most common errors in using the un-ionized ammonia calculator