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DEP Chapter 62-640, F.A.C., Rulemaking and Biosolids Technical Advisory Committee

Chapter 62-640, F.A.C. Rulemaking 

The Department is conducting rulemaking for Chapter 62-640, F.A.C., to address recommended actions of the Biosolids Technical Advisory Committee following their review of management practices and potential nutrient impacts related to the land application of biosolids.

The Department held three public workshops from June 25-27 in Tallahassee, Orlando, and West Palm Beach, respectively. We also broadcast the workshops via webinar. The webinar recordings are available at the links below. The public comment period is open until August 15, 2019. You may submit written comments directly via the PUBLIC COMMENTS link/button below, or by emailing them to Kristin Gousse.

Public Comments

62-640 Rulemaking Workshop Webinars & Agendas

A copy of the draft rule 62-640 language is now available, and may also be obtained by contacting: Stephanie Gudeman. Division of Water Resource Management, Florida Department of Environmental Protection, 2600 Blair Stone Road, MS 3560, Tallahassee, Florida  32399-2400. You may also sign up to receive automatic updates via email

Biosolids Technical Advisory Committee

Water quality and the improvement of water resources in Florida are a key priority for the Florida Department of Environmental Protection. As such, the Department is examining the nutrient impacts of the land application of biosolids. In 2018, the Department created a Biosolids Technical Advisory Committee (TAC) to evaluate current management practices and explore opportunities to better protect Florida’s water resources. The TAC members represent stakeholders from all arenas including environmental and agricultural industry experts, large and small utilities, waste haulers, consultants and academics.

The TAC convened on four occasions from September 2018 to January 2019 and discussed the following:

  • What are the current options for biosolids management in the state? 
  • Are there better ways to manage biosolids to improve the protection of our water resources? 
  • What research gaps exist and need to be examined to build upon and improve biosolid management?

The meetings included presentations related to biosolid management and regulations, water quality, innovative technologies and research. Each public meeting included open public comment, as well as discussion among the TAC members, the audience and the Department.

Based on the deliberations of the TAC and feedback from public participants, the following actions were recommended:

  • Permit biosolids in a manner that minimizes migration of nutrients to prevent impairment to waterbodies. The Department should modify current permitting rules to: 
    • Establish the rate of biosolids application based on site specifics, such as soil characteristics/adsorption capacity, water table, hydrogeology, site use, distance to surface water. This would better prevent nutrient pollution offsite 1;
    • Evaluate the percentage of water extractable phosphorus in all biosolids to inform the appropriate application rate; and
    • Establish criteria for low, medium and high-risk sites that guide application practices and required water quality monitoring. 
  • Increase the inspection rate of land application.
  • Develop site specific groundwater and/or surface water monitoring protocols to detect nutrient migration. 
  • Develop and conduct biosolid and nutrient management research on nutrient run-off through surface and groundwater flow.
    • This should be done with various application rates, various types biosolid application and different geologic conditions.
  • Promote innovative technology pilot projects for biosolids processing that could provide a wider range of beneficial end products.

The TAC disbanded on January 23, 2019, and these recommendations are currently being further developed by the Department for implementation.

1 Some of these parameters may be contemplated in the draft revised Phosphorus-index.

Biosolids TAC Meetings & Workshops

    The Department is committed to keeping the public informed as the committee begins their work. This page will be used to provide the most up-to-date details on scheduled meetings and committee activities. You are encouraged to bookmark this page and check back frequently. Any person interested in learning more about the TAC may email BIOSOLIDS_TAC@floridadep.gov.  You may also sign up to receive automatic updates via email. As a state agency sponsored committee, this committee will be required to follow all requirements under Florida's Government in the Sunshine Law, also known as the Open Meetings Law. All meetings were publicly noticed and open to the public.

    TAC Meeting 4 - January 23, 2019

    The fourth public meeting of the Biosolids Technical Advisory Committee was held on January 23, 2019 at DEP's Central District Office in Orlando, FL.

    A copy of the agenda, as well as other meeting materials, are available below.

    Meeting 4 Presentations

    • Biosolids TAC Considerations
    • (Due to 508 compliance, these presentations are only available upon request. If you would like to receive a copy, please contact Stephanie Gudeman.)
      • St. Johns Water Management District Update – Dean Dobberfuhl, SJRWMD
      • Biosolids and Water Quality Criteria - Dr. Paul Gray, Audubon

    TAC Meeting 3 - November 28 and 29, 2018

    The third public meeting of the Biosolids Technical Advisory Committee was held on November 28 and 29 at DEP’s Central District Office in Orlando FL. 

    A copy of the agenda, as well as other meeting materials, are available below.

     Meeting 3 Presentations
    • Biosolids Technologies Snapshot
    • Overview of Current Biosolids Studies and Summary Results of Past Projects
    • Biosolids-Borne Trace Organics
    • Biosolids Land Application Site Inspections

    TAC Meeting 2 - November 16, 2018

    The second public meeting of the Biosolids Technical Advisory Committee was held on November 16  in DEP’s Central District Office in Orlando, FL. A copy of the agenda, as well as other meeting materials, are available below.

    Meeting 2 Presentations

    TAC Meeting 1 - September 5, 2018

    The first public meeting of the Biosolids Technical Advisory Committee (TAC) was held on September 5, 2018 at the DEP Central District Office in Orlando, FL . A copy of the agenda, as well as other meeting materials, are available below.

    Meeting 1 Presentations
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    Last Modified:
    July 26, 2019 - 12:37pm

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