Los Angeles CWWD 40, R24, 27,33-Pearblsm

Municipal water, including bottled varieties, may contain small amounts of certain contaminants. The presence of these substances doesn't necessarily indicate health risks. For detailed information about contaminants and potential health effects, contact the U.S. Environmental Protection Agency's (USEPA) Safe Drinking Water Hotline (1-800-426-4791).

Water sources include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over land or underground, it dissolves natural minerals, sometimes radioactive materials, and can pick up substances from animal or human activities.

Potential contaminants in water supplies include:

• Microbial contaminants (viruses, bacteria) from sewage treatment plants, septic systems, agricultural operations, and wildlife
• Inorganic contaminants (salts, metals) occurring naturally or resulting from urban runoff, industrial/domestic wastewater, oil/gas production, mining, or farming
• Pesticides and herbicides from agriculture, urban stormwater runoff, and residential uses
• Organic chemical contaminants, including synthetic and volatile organic compounds from industrial processes, petroleum production, gas stations, urban runoff, and septic systems
• Radioactive contaminants that may occur naturally or result from oil/gas production and mining

Some individuals may be more vulnerable to water contaminants than the general public. Those with compromised immune systems—such as cancer patients undergoing chemotherapy, organ transplant recipients, people with HIV/AIDS or other immune disorders, some elderly individuals, and infants—may face greater infection risks. These individuals should seek advice about municipal water from healthcare providers. USEPA/CDC guidelines on reducing Cryptosporidium and other microbial infection risks are available from the Safe Drinking Water Hotline (1-800-426-4791).

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