2021 Drinking Water Quality Report

EWSU publishes Consumer Confidence Report

Each year, the Evansville Water and Sewer Utility (EWSU) publishes a Consumer Confidence Report (CCR), which details where your water comes from, information on contaminants commonly found in drinking water, key data on regulated contaminants, and where to find more information on drinking water and water protection efforts.

The complete report is available on the Utility’s website at ewsu.com/ConsumerConfidenceReport. You may also call our offices at 812-436-7846 to have a paper copy mailed to you.

Evansville Water Operations

EWSU provides safe, reliable drinking water through approximately 74,000 service connections. Surface water from the Ohio River is the water source for Evansville and the surrounding population.

In 2021, the average daily water demand to service all customers was approximately 25.1 million gallons of water per day (MGD). At peak demand, about 26.8 MGD was produced.

Common Water Contaminants

Rivers, lakes, streams, ponds, reservoirs, springs, and wells are sources of drinking water for both bottled water and tap water. Contaminants in source water may include:

  • Microbial contaminants, such as viruses and bacteria that come from sewage treatment plants, septic systems, agricultural livestock operations and wildlife. Inorganic contaminants, such as salts and metals, which can be naturally occurring or result from urban stormwater runoff, industrial or household wastewater discharges, oil and gas production, mining, or farming.
  • Pesticides and herbicides that may derive from various sources, such as agricultural activity, urban stormwater runoff, and commercial and residential uses.
  • Organic chemical contaminants – including synthetic and volatile organic compounds, which are byproducts of industrial process – and petroleum production, which may come from gas stations, urban stormwater runoff, and septic systems.
  • Radioactive contaminants, which may be naturally occurring or the result of oil and gas production and mining activities.

Safe Drinking Water

To ensure that tap water is safe to drink, the U.S. Environmental Protection Agency (EPA) prescribes regulations that limit the number of specific contaminants. Similarly, public health protections are in place for bottled water. The U.S. Food and Drug Administration (FDA) has established those contaminant limits.

Any drinking water, bottled or tap, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants in drinking water does not necessarily pose a public health risk. More information can be obtained by calling the EPA’s Safe Drinking Water Information Hotline at 800-426-4791

If you have any questions about the CCR or water quality in general, please call our offices at 812-428-0568.