Groundwater sits below the ground and supplies water to places like farms and homes. Because it is hidden, many people forget it can become polluted, too.
In the last five years, there has been a steady rise in the number of water pollution incidents. If harmful substances reach groundwater, cleaning it can be difficult and expensive.
1. Farming chemicals
Things like pesticides and fertilisers used on farms can soak through soil and reach underground water: this is more likely after heavy rain. Nitrate pollution, from these sources, remains a serious water issue in many areas.
2. Leaking fuel and oil
Places like petrol stations and factories can leak fuel or oil into the ground over time and even small leaks can spread and damage nearby water supplies. This is one reason groundwater remediation may sometimes be needed to manage contamination properly.
3. Poor waste disposal
Landfills and illegal dumping can release chemicals into the soil. Batteries, paint, and household waste may all contain harmful substances, and if sites are not managed well, pollution can slowly move underground. Some landowners may look at services such as https://soilfix.co.uk/services/groundwater-remediation/ when dealing with affected land.
4. Sewage and septic tank problems
Broken sewage pipes or poorly maintained septic tanks can leak bacteria and harmful waste into surrounding ground. This can create serious health risks, especially in rural areas using well water.
5. Industrial chemicals
Factories can produce very dangerous waste, including solvents or heavy metals. Without careful controls, these substances may enter the soil and pollute groundwater for years.
