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Sunday, April 06, 2008

Considering Sinkholes

The county's next installment in its Water Awareness series offered a chance to study up on the phenomenon so often seen in Hernando County. They also explained how residents have at least a little bit of power to prevent them from occurring.
Published: April 3, 2008
The seminar, titled "Understanding Sinkholes and Why They Occur," took place from 10 a.m. to noon on April 4th at the Hernando County Utilities Department, 21030 Cortez Blvd. in Brooksville.

Sinkholes are more likely to open up after a prolonged drought, when the aquifer level has dropped, followed by heavy rains. The heavy upper layer of clay and soil that sits atop limestone pockets is buoyed by the aquifer. During droughts, the water level drops and the upper layer loses that support.

When the rains return, the soil and clay sucks up the moisture and gets heavy, just like a sponge, and sometimes collapses. To a large extent, that process is just part of Mother Nature's whim, Means said. But we can control our geological destiny by taking conservation measures that will reduce the impact on the aquifer, he said.
Source

More Info:
Citizen’s for W.A.T.E.R.

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