Wednesday, August 14, 2013

Groundwater Model Demonstration at the Beacon Sloop Club in Beacon, NY on the Shores of the Hudson River

By Jay Beaumont, Groundwater Foundation Board Member 

Sometimes groundwater is regional, and sometimes groundwater is personal. 

When I do the groundwater model demonstration, I get questions about fracking and road salt; I get stories about the quality of water coming out of the tap, and I get Ah Hah moments of understanding.

The two big regional issues in the Northeast are hydraulic fracturing (fracking) and high chlorides levels in the ground water.  Most of my visitors were aware of the fracking debate, but more often than not, they asked how my model shows how the fracking affects water supply wells. I would say at the scale of the model the fracking would take place 1,000 feet below the model, but the problems often take place in the shallow aquifers that we see in the model.

High chloride levels in the groundwater are not on most people’s radar screens.  Every once in a while, a savvy soul will bring up high levels of chlorides found in wetlands and well water.  The high levels are caused by the ubiquitous use of road salt during the winter.  And, unfortunately, sodium and chloride ions do not breakdown any further in the groundwater.  I fear the road salt impacts will be with us long after the fracking debate has faded away.

Sometimes groundwater is very personal.  One visitor mentioned he noticed groundwater seeping out of the rocks on the path up Beacon Mountain the day after Tropical Storm Andrea passed through; a spring!

Another visitor was very proud of his work to reduce the sulfur smell in his water.  Sulfur water is very common around here.  He installed a pressure tank without a bladder, and he is able to vent the sulfur gas several times per week.

The Fishkill Creek is near the City of Beacon.  Part of the aquifer under the creek has been contaminated by industrial pollution.  The pollution is so bad that industry teamed with Dutchess County to construct a pipeline from Poughkeepsie south to the Fishkill area to bring clean water.

A visitor to my demonstration said she lives near the Fishkill Creek aquifer.  She is worried, because she often gets an oily sheen on her coffee in the morning.  I could only offer the name of a good lab where she can have the water tested.

Some of the visitors were concerned about pollution from buried oil tanks.  We shared stories about removing tanks, and what happened when the tanks had leaks in them.

The Ah Hah moments were plentiful – groundwater moves, albeit slowly; pollution moves with the groundwater; wells drawdown and recover; gravel is more permeable than sand; and it is much cheaper to prevent water pollution than the clean up water pollution.

The Beacon Sloop club is a wonderful host.  They gave me a nice shady location with lots of passersby.  And, the best part is the free strawberry shortcake for us exhibitors.







1 comment:

ma quyen said...

Your work is the same as my work.
now i go to the school, bring groundwater model anh explain to pupil in school about groundwater!