Well Water in Portsmouth city: What to Test and Why

Wells in Portsmouth draw from an underground gravel and sand layer near the Atlantic coast that contains arsenic, chloride, fluoride, iron, lead, manganese, and sulfate. Several of these contaminants exceed EPA health standards, making them a real concern for well owners in this area.

These contaminants come from two main sources. Saltwater from the ocean pushes inland through the underground layers, bringing chloride and sulfate. Naturally occurring metals like arsenic, iron, manganese, and lead sit in the rock and sand itself, released into groundwater as it flows through.

Groundwater in Portsmouth is notably high in sodium and moderately high in iron and sulfate. The coastal location and saltwater intrusion drive the sodium and sulfate, while the iron comes from minerals in the sand and gravel layers. These characteristics show up across many wells throughout the city.

Wells in Portsmouth show concerning levels of several contaminants that exceed EPA health standards. Arsenic can damage kidneys and increase cancer risk with long-term exposure. Lead harms brain development in children and raises blood pressure in adults. Fluoride at elevated levels can cause dental problems and bone damage. Chloride and sulfate at high concentrations can affect kidney function and digestion. Manganese and iron can harm the nervous system and cause other health problems over time.

The high sodium and mineral content in county wells creates everyday challenges for your home. Water stains on dishes, fixtures, and laundry are common. Buildup on pipes and appliances reduces water flow and shortens the lifespan of water heaters and dishwashers. Some people notice a salty taste or a rotten egg smell from sulfate and iron in the water.

We recommend a comprehensive water test right away since your well has multiple health concerns. Testing is the only way to know what is actually in your well so you can treat it properly. Every well is different, and your water could have higher or lower levels than what is common in Portsmouth. A comprehensive metals and minerals panel typically costs between two hundred and four hundred dollars. Water softening systems and activated carbon filters can address many of these problems once you know your specific levels.