Quality And Treatment

For more than 80 years, Metropolitan has been Southern California's provider of high-quality, reliable drinking water that meets or exceeds all federal and state drinking water regulations. Using advanced treatment technologies increased monitoring and adhering to stringent laws and guidelines, Metropolitan works hard to protect the quality of water delivered to the consumer.

To ensure the delivery of a safe and reliable water supply, Metropolitan operates five water treatment plants. On an ongoing basis, Metropolitan tests its water for nearly 400 constituents and performs about 250,000 water quality tests per year on samples gathered from throughout its vast distribution system. Analysis of these samples is undertaken at Metropolitan's state-of-the-art water quality laboratory.