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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. o 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. Chapter 62-640 Rule Development On March 22, 2019, the Department published the Notice of Rule Development to amend chapter 62-640, F.A.C. Rule development workshops were held in Tallahassee (June 25), Orlando (June 26), and West Palm Beach (June 27), where the Department provided an overview of rule changes and accepted public comment. The workshops were also available via webinar. Links to the webinar recordings and information regarding the rulemaking may be Ifound on our website. The Department published the Notice of Proposed Rule and the Statement of Estimated Regulatory Cost on October 29, 2019 (attached). Based on the findings of the Statement of Estimated Regulatory Costs, the rule will require legislative ratification, which is supported by the Governor's water quality improvement legislation as announced on October 16, 2019. The proposed revisions to Ch. 62-640, F.A.C., include: • Existing sites —revisions apply at permit renewal or within') years [100(5)0-(j)] • All biosolids applications "projects of heightened public interest" [300(3)(d)] • All biosolids site enroll in an FDACS Best Management Practices (BMP) Program [300(3)(g)] • Nutrient management plan (NMP) major revisions o Compliance with Basin Management Action Plans [500(5)(c)] o Revisions to the determination of application rates [500(5)(i)] ■ Most limiting nutrient, Nitrogen (N) or Phosphorous (P), unless permittee can provide reasonable assurance [500(5)(i)] ■ Table of recommended N and P rates for crops with using biosolids [500(5)(i)1] ■ Soil phosphorus storage "capacity index" required [500(5)(i)4] ■ Biosolids %Water Extractable Phosphorous (PWEP) required [500(5)(i)6] ■ Adjustments of P allowed if positive capacity index and low %WEP [500(5)(i)7] ■ If N -based application rate, can only adjust N by a factor of 1.5 [500(5)(1)8] ■ Septage-specific application rates [500(5)010] ■ Review NMP annually, revise if appropriate [500(8)] ■ Require annual soil fertility monitoring using IFAS "Phosphorus Index" test that provides "capacity index" [500(5)(e) and 650(3)(b)1] • Require biosolids water extractable phosphorus (WEP) monitoring; site ground water monitoring and surface water monitoring [650(3)(a)1, 650(3)(a)3, 650(3)(c), and 650(3)(d)] • Prohibit land application where the seasonal high water table is within 15 cm of soil surface (or depth of biosolids placement). [700(10)] 122