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PUBLIC HEALTH GOALS. City Council Public Hearing August 16, 2010. Public Health Goals (PHGs). WHAT ARE PHGs? Set by the California Office of Environmental Health Hazard Assessment (OEHHA) which is part of California EPA Based solely on public health risk considerations
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PUBLIC HEALTH GOALS City Council Public Hearing August 16, 2010
Public Health Goals (PHGs) WHAT ARE PHGs? • Set by the California Office of Environmental Health Hazard Assessment (OEHHA) which is part of California EPA • Based solely on public health risk considerations • Detection capability, availability of treatment technology, benefits and costs are not considered • Are not enforceable and not required to be met
PHG vs. Consumer Confidence Report (CCR) PHG Report • Required every 3 years • Level of a contaminant in drinking water, that does not pose a health risk if consumed for a lifetime. • Contaminants present, but at levels below the drinking water standards (MCLs) • Technology for removal, if any, and associated cost CCR Report • Required annually • Drinking water regulatory standards • Includes information on source water • Levels of any detected contaminants • PWP’s compliance with drinking water regulations
Constituents Detected That Have Exceeded a PHG or a MCLG The constituents listed below have exceeded a PHG or a MCLG at one or more of the City’s sources. • Trichloroethylene (TCE) Perchlorate • Tetrachloroethylene (PCE) Lead/Copper • Total Coliform Bacteria Arsenic • Nitrate Uranium • Fluoride Gross Alpha The water from these sources have been blended with other sources of water to meet all applicable water quality standards before being delivered to customers.
Acronyms • PHG Public Health Goal. The level of a contaminant in drinking water below which there is no known or expected risk to health. Set by Cal-EPA. • MCL Maximum Contaminant Level. The highest level of a contaminant that is allowed in drinking water. Primary MCLs are set as close to the PHGs (or MCLGs) as is economically and technologically feasible. • MCLG Maximum Contaminant Level Goal - The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs are set by the U.S. Environmental Protection Agency.
Conclusion • The drinking water quality of the City of Pasadena meets all State and Federal drinking water standards set to protect public health. • To further reduce the contaminant levels to meet the PHGs would require additional costly treatment processes. • No action is proposed.
Constituents Detected That Have Exceeded a PHG or a MCLG * 90th percentile of the samples collected cannot exceed the action level. ** Copelin Well