What color is tap water?

The appearance (color, clarity) of tap water can vary depending on the source of the water, the treatment processes used, and local water quality regulations. It's important to note that the color of tap water doesn't necessarily indicate the safety of the water.

Here are some common colors of tap water and possible reasons behind them:

1. Clear (No Color): Clear water is generally considered desirable and indicates that the water is free from significant amounts of impurities or suspended particles.

2. Light Blue/Green: This color can occur due to dissolved minerals, such as copper or iron, in the water. It is often seen in areas where the water supply comes from reservoirs or lakes that naturally contain these minerals.

3. Yellow/Brown: Yellow or brown water can be caused by the presence of tannins, which are natural organic compounds found in decaying vegetation. It is commonly observed in areas with high levels of organic matter in the water source.

4. Reddish/Orange: This color may indicate the presence of iron or rust particles in the water. It can occur when old iron pipes or fixtures corrode and release iron into the water.

5. Milky/Cloudy: Cloudy or milky water may be due to the presence of air bubbles or suspended particles, such as silt, sediment, or minerals. This is often temporary and can occur after heavy rainfall or changes in water pressure.

6. Black/Dark Gray: Black or dark gray water is usually a sign of contamination or significant issues in the water supply. It can indicate the presence of bacteria, organic matter, or heavy metals.

If you notice any significant or persistent changes in the color of your tap water, it's advisable to contact your local water utility or health department for further evaluation and guidance.