At our January 14, 2019 evening meeting at the Commack Public library , CCA hosted speakers from the Suffolk County water Authority.  
One of the speakers was a 2009 graduate of Commack High school: Seth Wallach ! 

 The water authority always offers an outstanding presentation on our drinking water.  This was their second visit to a CCA meeting !
 Take your grandkids on a Thursday afternoon tour of the water authority showcase in Hauppauge. Call the water authority for details..
 
We learned that :
  • Six hundred+ wells are maintained and routinely tested for 387 compounds including nitrates, 1-4 dioxin, polluting medicines

     that have seeped into the aquifer, dry cleaning fluid and PFOS solvents. PFOS is a chemical in non-stick cookware and firefighting foam.

  • Fifty-three thousand water samples were taken at all the SCWA wells.
  • Seventy percent of the SCWA wells do not require treatment. Of the wells that require treatment, 119 GAC tank carbon filter 

      have been installed and are maintained by Calgon water technicians who remove the charcoal filters to Pennsylvania for  cleaning and reuse.

  • The charcoal carbon filters are being replaced with coconut shells which remove even more pollutants.
  • There are also 29 Iron/manganese removal systems to clear these elements which can clog pipes.
  • There is a new material being used for water pipes It is called Ductile iron concrete lined pipe. It should last much longer than current materials.
  • A test system to remove 1-4 dioxane is working well enough to be approved by the Dept of Health.
  • Lime is added to the water to maintain a neutral (7) ph factor . It might help to prevent pinhole leaks in your household pipes.
  • Check out WATER TROQ on the SCWA website for details about your local water quality
  • Much of Long island is over an aquifer. The deepest  purest aquifer is the Lloyd aquifer. Only Long Beach and Atlantic Beach

     draw pure water from the Lloyd due to salt water intrusion into their wells in the Magothy acqifer..

  • The more water that is pumped from the Magothy aquifer, which supplies Commack water, the more salt water intrusion occurs.Wastering ! of              lawns in the summer drastically increases well pumping.
  • In 1986 the state halted the drilling of new wells in to the Lloyd to preserve it for the future.
  • Storage of town highway winter salt and sand is now inside of a covered building in Islip Terrace, because the rain was washing it into the nearby       SCWA well. Salinity increased causing issues.
  • New water piping was installed along Indian Head rd. and on Leah court in Commack. Wider four inch  water piping was installed on Leah Court replacing  old two (2) inch pipes.