75A - PH - RPT ON WATER QUALITY - Laserfiche WebLink

Home Browse Search

WATER QUALITY CONSUMER CONFIDENCE REPORT About Your Drinking Water 1. What are the sources of the water Santa Ana delivers? The City of Santa Ana depends on two sources for the 16.3 billion gallons of water we supply each year-62% is groundwater and 38% is imported water, purchased from the Metropolitan Water District of Southern California (MWD). The groundwater accumulates and is stored beneath the surface of the earth and then pumped to the surface by 20 city-owned wells. MWD brings Colorado River water from Lake Havasu and runoff from the snow pack in the Sierra Nevada Range in Northern California. The water is then treated at either the Diemer Fil- tration Plant in Yorba Linda or the Wey- mouth Filtration Plant in Laverne before it is delivered to Santa Ana. There are seven MWD connections lo- cated in the City Most of our customers receive a blending of the two sources, groundwater and imported water. For more details, seethe Water Quality Stan- dards for each of these sources in the data that follows. Groundwater and im- ported waterare listed in separate columns. s. What's in my drinking water? Your tap water may contain different types of chemicals (organic and inor- ganic), microscopic organisms (e.g., bac- teria, algae, viruses) and radioactive ma- terials (radionuclides), many of which are naturally occurring. Health agencies re- quire monitoring for these constituents, because at certain levels they could make a person sick. The column marked "Parameter" lists the constituents found in the water used by Santa Ana. 3. What are the maximum allowed lev- els for constituents in drinking water? Health agencies have maximum contami- nant levels for constituents so that drinking water is safe and looks, tastes and smells good. A few constituents have the letters 'TT" in the MCL column because they do not have numeri- cal MCL. Instead, they have certain treatment Continued on back Lion about drinking water contaminants.) err Safety er, i i- m :ial .on. t to lu- t of certain contaminants in water provided by public water ms. Food and Drug On I?DAIreulaotions establish limit or c ntaminants in bottled wate Both sets of public 'I h " Some people F, ntzrn inants in may be _- e vulnerable to drink- 3en- ing n- sed person, such as persons with can- ng cer chemotherapy, persons who have undergone organ transplants, people with HIViAIDS or other immune system disorders, some elderly, and infants can be particularly at risk from infections. These people should seek advice about drinking water from their health care providers. USEPAiCDC (U.S. Centers for Disease Control and Prevention) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial contaminants are available from the Safe Drinking Water Hotline 800-426-4791. Cryptosporidium is a mi- crobial pathogen found in surface water throughout the U.S. To date, Crypto- sporidium has not been detected in our water supply. Beginning in October 1oo7, water that is received by the City of Santa Ana from MWD will have fluoride added to it. Our well water currently has a naturally occur- ring fluoride range level of o.18 to 0.56 ppm. Water provided by MWD will have a fluoride level of o.7 to o.8 ppm. This plan was approved by the CDC and the California Department of Public Health. Additional information may be found by calling MWD's Water Quality Information Hotline at 800-354-4420, or by visiting the following websites: mwdh20.COM/ fluoridation or ada.org(fluoride.aspx. 75A-19