Well Water in Delta County: What to Test and Why

Your well water comes from old limestone and dolomite bedrock deep underground. This hard rock is cracked and fractured, which lets water slowly seep through and collect. The rock layers sit below younger sand and gravel deposits closer to the surface.

Iron, sulfate, and chloride get into your water as it moves through the bedrock. The limestone and dolomite naturally contain iron and sulfate minerals that dissolve into the groundwater over time. Road salt from winter road treatment also seeps down and adds chloride to wells closer to the surface.

Your water is extremely hard and carries high amounts of minerals. You will see rust-colored staining on sinks and toilets from the iron, and white scale buildup on pipes and fixtures from the hardness. The water tastes salty from the high sodium and sulfate levels, which can cause digestive upset and make everyday use unpleasant.

Iron, chloride, and sulfate in Delta County wells exceed EPA health standards. Radon also exceeds its standard. These are serious concerns that need immediate attention. Your well water has multiple contaminants at unsafe levels.

Long-term exposure to high iron can damage your organs over many years. Chloride and sulfate can cause digestive problems and make your water taste salty or bitter. You will see orange and brown staining on sinks, toilets, and laundry. The water is extremely hard, so you will get heavy scaling on pipes and fixtures.

Get your well tested right away by a state-certified lab. A basic health screen costs $50–100, and a full mineral and metals panel costs $200–400. A whole-house treatment system combining aeration, filtration, and softening can address iron, hardness, and some mineral issues.