All water delivered by the District to each customer’s faucet comes directly from two local groundwater basins and is minimally treated. Together, the groundwater basins contain over 600,000 acre-feet of water, or over 195 billion gallons.
Only a portion of the local groundwater can be used for drinking water. The basins consist of three layers, with the top layer comprised of high quality water ready to go to customers. The lower two layers contain more minerals, are harder to reach, and cannot be used to supply water to the District. The District diligently seeks to protect its water from potential contaminants. Each month, the District conducts nearly 30 water quality tests so that customers can be confident they are receiving safe, high-quality water.
Every year, the District issues a water quality report called a Consumer Confidence Report. Below are all available Consumer Confidence Reports issued since the formation of the District.