Regular Lead Testing
The Water Authority regularly tests for the presence of lead and other potential contaminants in its supply sources and in the water it delivers to member agencies as part of its overall water quality monitoring program, using a range of techniques from real-time monitoring to laboratory testing.
Tests show no detectable levels of lead in any potable water from any treatment plant that serves the Water Authority.
The water source for the Carlsbad Desalination Plant is seawater from Agua Hedionda Lagoon, while the water source for the Skinner and Twin Oaks Valley treatment plants are from the State Water Project in Northern California and the Colorado River. Each of these sources is tested for lead annually in accordance with regulations from the U. S. Environmental Protection Agency and the State Water Resources Control Board, Division of Drinking Water. Local reservoirs are tested annually in accordance with state and federal water quality rules.
School Testing Regulations
Public concern over lead in other states’ drinking water supplies prompted the California Division of Drinking Water to enact a new requirement for the testing of water for lead in schools that took effect in 2018.
As of July 1, 2019, the Division of Drinking Water, in collaboration with the California Department of Education, has completed the initiative to test for lead in drinking water at all public K-12 schools.
When lead is detected by customers, the most common cause is internal corrosion of plumbing systems and service lines that are the responsibility of the property owner. Consumers concerned about lead in drinking water can learn more on the EPA’s website or by calling the Safe Drinking Water Hotline at 1-800-426-4791. Bilingual service is available on the hotline.