*Every drop of drinking water on Long Island comes from underground, and the way we water our lawns is putting real strain on it.*
Long Island has no reservoir, no river hookup, no backup system. Our entire drinking water supply comes from a sole source aquifer system beneath the island, and that system serves both Nassau and Suffolk counties for one hundred percent of their freshwater needs, whether it comes out of a tap, a shower, or a sprinkler head, according to reporting from Herald Community Newspapers. There is no plan B if it gets damaged.
That matters more in summer than any other season. Demand for water surges from June through September, driven largely by lawn irrigation and outdoor use, and that seasonal spike adds real stress to the aquifer that nearly three million people depend on for drinking water.
The numbers are not small. One Long Island water district reported that lawn irrigation accounts for almost a billion gallons of water usage each year in its service area alone, and a Nassau County district found that pumpage rose 13.2 percent over the prior summer, largely tied to irrigation. A lot of that water never even reaches the grass. Industry data cited by local water districts shows that over half of the water pumped in summer is wasted through evaporation, wind, and inefficient watering practices.
The aquifer itself is not infinite. Groundwater experts have pointed out that groundwater levels have shown troubling declines in recent years, particularly following periods of below average rainfall, based on the Long Island Commission for Aquifer Protection's most recent State of the Aquifer report. This is not an abstract environmental issue. It shows up in your water bill, and eventually in the reliability of the system your home depends on.
The most direct fix is a smart irrigation controller, a device that adjusts watering schedules based on real time weather and soil conditions instead of running on a fixed timer. Water districts and conservation groups say these controllers typically reduce irrigation water use by around 30 percent while still keeping lawns healthy. Because they cut down on wasted water, they tend to pay for themselves within a couple of years through lower water bills.
A number of Long Island water districts offer rebates to make the switch easier. Programs found across Nassau County districts have offered rebates of up to 150 dollars toward the purchase of a qualifying smart controller, and similar programs have run in other districts with the same goal of protecting the aquifer from overuse. Check with your own water district directly, since eligibility rules and funding amounts vary by area and some programs only run while funds last.
If you are buying a home on Long Island this year, it is worth asking whether the property has an in ground irrigation system and what kind of controller it runs. If you already own here, a smart controller is one of the few home upgrades that saves money and eases pressure on a shared resource at the same time. It is a small change with a real effect on both your bill and the water everyone on this island drinks.
If you have questions about a home you are watching or want a read on what upgrades actually matter for resale, drop a question at /askmuds or check your home's current value at /my-home-value/.