A 2012 FDOH Florida Senate Bill Analysis and Fiscal Impact Statement reported, Florida has allowed 99.9% of its septic systems to operate for decades without required maintenance, 75% of Florida’s septic systems to operate past their life expectancy and 50% to operate with drainfields that are only 6 inches deep, current code requires 24-inch deep drainfield. Based on the 2012 senate bill Analysis it is estimated that the existing septic systems may average as high as 25%, (5.75 lbs.) of nitrogen reduction a year, contributing 17.25 lbs. of nitrogen a year into Florida's environment. (FDOH)
The average cost $25,000, After being installed on private property these systems with proper maintenance in accordance with Florida State rules and regulations have only averaged 33%, (7.6 lbs.) of nitrogen reduction a year, contributing 15.2 lbs. of nitrogen a year to Florida’s waters. A 2013 FDOH report shows that these systems add an additional 17%, (4 lbs.) more nitrogen to our waters than a modern conventional septic system. (FDOH 2013). Note: Low performance of the nitrogen reduction system’s treatment tank can negatively affect the performance of the drainfield.
With an average cost of $8,000 Installed in Florida average 50%+, 11.5+ lbs., of nitrogen reduction a year, contributing 11.5 lbs. of nitrogen a year to Florida's waters. (FDEP 2018)
A 2019 Brevard County, Florida study found that existing sewer laterals were contributing the same amount of nitrogen to the environment as Florida’s existing septic systems, which contribute an average of 17.25 lbs. of nitrogen per lateral, per year, contributing 17.25 lbs. of nitrogen a year into Florida's environment