Well Water in Lamb County: What to Test and Why

Groundwater in Lamb County contains arsenic, chloride, fluoride, manganese, nitrate, sulfate, and uranium at levels that exceed EPA health standards. These contaminants are present at concerning concentrations that well owners need to know about and address.

The High Plains aquifer underlying this county naturally holds elevated levels of these minerals and salts from the rock and soil layers it flows through. Agricultural activities like irrigation and fertilizer use also add nitrate and other compounds to the groundwater, while the dry climate concentrates salts as water evaporates near the surface and in the soil.

Groundwater in Lamb County is very hard, driven by elevated calcium and magnesium dissolved from the rock below, and also carries moderate amounts of sulfate and sodium. These minerals accumulate because water moving through the aquifer's sandy and silty layers dissolves them slowly over time. Hard water with elevated sulfate and sodium is widespread across wells in this county.

Wells in Lamb County commonly exceed EPA health standards for arsenic, chloride, fluoride, manganese, nitrate, sulfate, and uranium. Arsenic can damage your kidneys and increase cancer risk with long-term exposure. Nitrate is especially dangerous for infants and can cause serious blood problems. Uranium, manganese, and fluoride at high levels can harm your bones, brain development, and teeth. These contaminants have no taste or smell, so you cannot detect them without testing.

The county's very hard water will leave white scale buildup on faucets, shower heads, and inside pipes. You will see staining from iron and may notice a rotten egg or bitter taste from sulfate and other minerals. Hard water reduces how well soap works and can make your skin feel dry. It shortens the lifespan of water heaters, dishwashers, and washing machines because scale clogs the equipment.

We recommend testing your well right away. Every well is different, and your water could have higher or lower levels than what is common in the county. Only testing tells you what is actually in your well so you can treat it properly. A comprehensive metals and minerals panel costs between $200 and $400 and will show you exactly what you are dealing with. Treatment options like reverse osmosis, ion exchange softening, or activated carbon filters can address multiple contaminants depending on what testing reveals.