a) “The conventional onsite treatment and disposal systems contribute nutrients to groundwater and surface waters”, The Clean Water Act
The Clean Water Act fails to mention that ALL, onsite treatment and disposal systems, including sewer laterals, contribute nutrients to groundwater and surface waters. In fact, FDOH studies have shown that the nitrogen reduction septic systems supported by The Clean Water Act, can cost the Florida citizens and property owners almost 3 times more and they can contribute up to 4 more pounds of nitrogen to our ground and surface waters than a conventional septic system.
b) “A conventional onsite treatment and disposal system can contribute to the conditions which can cause harmful blue-green algal blooms”, The Clean Water Act
The Clean Water Act again fails to mention that “ALL” human waste treatment systems, including sewer laterals, contribute to the conditions which can “cause” harmful blue-green algal blooms.
c) “A conventional septic system was not designed to remove nitrogen.” (FDOH)
The conventional septic systems may not have been designed to remove nitrogen, but our public officials know that the conventional septic systems do reduce nitrogen and they do a good job of it. In fact, FDOH studies show that a modern conventional septic system with an average cost of $8,000, removes 4 lbs. more nitrogen than the Nitrogen Reduction Systems costing an average of $25,000.
“OSTDS (septic systems) may not be as significant a source of nutrients and bacteria as many have thought”. 2011 Study; The Importance of OSTDS Contaminant Loading to the IRL, Florida Tech Researchers: Thomas V. Belanger, Ph.D., Principal Investigator,
d) “Even the new modern conventional septic systems leak nitrogen into our waters.”
All septic systems leak nitrogen into our waters; however, the modern conventional septic system leaks 4 lbs. less nitrogen into our waters, than Florida’s nitrogen reduction septic systems.
e) “A conventional septic system leaks more nitrogen into our waters when installed in poor soils.”
The claim that a conventional septic system leaks more nitrogen into our waters after it has completed its treatment process, because it was permitted for use in poor soils is absurd.
After the treatment from any type of septic system, the system disperses its treated effluent into good, fair or poor soils. A conventional septic system just like any other household sewage treatment system, does not have the ability to leak more nitrogen into our waters, after its treatment process is completed, simply because it was installed in poor soils.