Rising sea levels could compromise as many as 60 million septic systems in the United States alone, making toilets unable to flush waste.
Earlier in September, Sosa sponsored two pieces of legislation to help transition Miami-Dade County away from septic tanks and towards municipal sewer systems, which collect waste from multiple homes through underground pipes and clean it at a filtration plant. Other options for rural areas include elevated septic systems that do not depend on drainage fields.
Florida is home to 15% of the country's septic systems, and its low-lying geography makes it especially vulnerable to changes in sea level. The bedrock of much of the state is porous limestone, which allows seawater to reach inland quickly and raises the underground water table at a similar rate as the Atlantic Ocean. Traditional barrier methods like sea walls are ineffective at preventing groundwater rises.
The state's sea level has risen in some areas as much as eight inches since 1950, and current projections have it increasing by an inch every three years. The U.S. Army Corps of Engineers is predicting an additional 15 inches of rise by 2050.his office has been working on ways to mitigate sea level rise for 30 years.
"This water management system is probably one of the most complex anywhere in the world," he said."We are in a place where the ocean is directly connected to our shallow groundwater system. As sea level rises, which it is clearly doing, it is going to affect our ability to both protect our drinking water supply and protect the built environment."
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