Well Water in Queens County: What to Test and Why

Groundwater in Queens County contains iron, manganese, arsenic, chloride, lead, nitrate, and sulfate. Several of these contaminants exceed EPA health standards and warrant immediate attention from well owners.

These contaminants come from two main sources. Iron and manganese occur naturally in the sandy and gravelly layers beneath the county. Chloride, sulfate, nitrate, and lead enter from road salt, urban runoff, aging pipes, and septic systems in this densely developed area.

Groundwater in Queens County is very hard, driven by elevated calcium and magnesium from the sand and gravel aquifer. Iron levels are high enough to be noticeable in many wells. These characteristics are widespread across the county, with most wells showing similar patterns of hardness and iron concentration.

Wells in Queens County commonly exceed EPA health standards for arsenic, lead, nitrate, and manganese. Arsenic exposure over time increases the risk of cancer and can harm the heart and kidneys. Lead damages the brain and nervous system, especially in children and infants. Nitrate and manganese also harm brain development in young children. These contaminants pose serious health risks and warrant testing.

Queens County wells are very hard water with elevated iron. Hard water leaves scale buildup on pipes and fixtures and shortens the lifespan of water heaters and dishwashers. Iron stains clothes, dishes, and sinks with rust-colored marks. The water may taste metallic or have an unpleasant odor from the minerals present.

We recommend a comprehensive metals and minerals panel to find out what is actually in your well, since every well is different and your water may have higher or lower levels than the county average. Testing is the only way to know what needs treatment. A comprehensive panel typically costs $200 to $400. Treatment options like reverse osmosis systems or ion exchange softening can address multiple contaminants.