In 2008, the Florida Legislature directed the Florida Department of Health to develop a tool box of cost-effective nitrogen reduction strategies for onsite sewage treatment and disposal systems (OSTDS). The project had two main areas of focus: development of passive nitrogen reduction technologies; and evaluation and prediction of the fate and transport of nitrogen from OSTDS. Objectives included:
Development of cost-effective, passive strategies for nitrogen reduction from onsite sewage systems.
Characterization of nitrogen removal in the soil and shallow groundwater.
Development of simple models to determine fate and transport of nitrogen from OSTDS in soil and groundwater.
In January 2009, the department in consultation with its Research Review and Advisory Committee (RRAC) contracted with a project team comprised of nationally recognized experts led by Hazen and Sawyer, P.C. The department, and its RRAC, directed the Florida Onsite Sewage Nitrogen Reduction Strategies (FOSNRS) Project, with participation from the Florida Department of Environmental Protection (DEP).
As of December 2015, the contractor, in coordination with the RRAC, DEP and the department, has successfully completed the contractual work for this project. The department has submitted the final Legislative report to the Governor, Speaker of the House and President of the Senate on Dec. 31, 2015.
The following document contains site and system design drawings for the Nitrogen Study. This document is visual in nature and may not be accessible to screen readers. If you need assistance with the information contained in this document, please contact the Onsite Sewage Program office.
The Florida Department of Environmental Protection is the state’s lead agency for environmental management and stewardship – protecting our air, water and land. The vision of the Florida Department of Environmental Protection is to create strong community partnerships, safeguard Florida’s natural resources and enhance its ecosystems.