Well Water in Waller County: What to Test and Why

Groundwater in Waller County contains iron, arsenic, and manganese at levels that exceed EPA health standards. These contaminants are present at concentrations that warrant attention and testing.

These metals come from the rock and soil in the coastal lowlands where your county sits. Water moving through sand and clay layers naturally dissolves iron and manganese from minerals in the rock. Arsenic also occurs naturally in some of these underground layers and releases into groundwater over time.

Groundwater in this county is hard, driven by calcium and magnesium that dissolve from the rock as water flows underground. The moderate iron content adds to this mineral character. Hard water and elevated iron are common across many wells in Waller County, though individual wells vary in their exact composition.

Wells in Waller County commonly contain arsenic, iron, and manganese at levels that exceed EPA health standards. Arsenic can damage the kidneys and increase cancer risk over time. Iron and manganese can affect the nervous system, especially in children, and cause other health problems with long-term exposure.

County well water is hard, which causes practical problems in your home. Hard water leaves scale buildup on pipes and fixtures, reduces how well soap works, and can shorten the lifespan of water heaters and dishwashers. You may notice reddish or brown staining on sinks and laundry from iron in the water.

We recommend testing your well with a comprehensive metals and minerals panel to see what is actually in your water. Every well is different, and your water could have much higher or lower levels than what is common in the county. Testing is the only way to know what needs to be treated. Water softeners and iron filters can address these concerns.