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

Home Browse Search

2014 WATER QUALITY TABLE 'Turbidity: Is a measure of the cloudiness of the water. It is monitored in our imported water source because it is a good indicator of the effectiveness of the filtration system. ' The turbidity level of the filtered water shall be less than or equal to 0,3 NTU in 95% of the measurements taken each month and shall not exceed 1 NTU at any time. The averages and ranges of turbidity shown In the Secondary Standards were based on the treatment plant effluent. 3 The State required raw water coliform monitoring for all treatment plants beginning March 2008. Reporting level is 1 CFU/100ml- for total coliform and E. coli. " Data for the naturally- occurring fluoride were taken before the fluordation treatment began. Fluordation treatment of water supplies at all five MWD treatment plant's started sequentially from October 29, 2007 to December 3, 2007. Metropolitan was In compliance with all provisions of the State's Fluordation System Requirements. (Special Educational Statement Regarding Nitrate: Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. Nitrate in drinking water at levels above 45 mg /L is a health risk for infants of less than six months of age. Such nitrate levels in drinking water can Interfere with the capacity of the infants blood to carry oxygen, resulting in a serious illness; symptoms Include shortness of breath and blueness of the skin. Nitrate levels above 45 mg/L may also affect the ability of the blood to carry oxygen in other individuals, such as pregnant women and those with certain specific enzyme deficiencies, if you are caring for an infant, you should ask advice from your health care provider. 6Special Educational Statement Regarding Perchlorate: Perchlorate has been shown to interfere with uptake of iodide by the thyroid gland, and to thereby reduce the production of thyroid hormones, leading to adverse affects associated with inadequate hormone levels. Thyroid hormones are needed for normal prenatal growth and development of the fetus, as well as for normal growth and development In the Infant and chlld. In adults, thyroid hormones are needed for normal metabolism and mental function. 'Eight locations in the distribution system are tested quarterly for total unhalomethanes and haloacetic acids. "Radon: Radon is a radioactive gas that you can't see, taste, or smell. It is found throughout the U,S. Radon can move through the ground and into a home through cracks and holes in the foundation. Radon can build up in high levels in all types of homes. Radon can also get into Indoor air when released from Cap water from showering, washing dishes, and other household activities. Compared to radon entering the home through sail, radon entering the home through tap water will in most cases be a small source of radon in indoor air. Radon is a known human carcinogen. Breathing air containing radon can lead to lung cancer. Drinking water containing radon may also cause Increased risk of stomach cancer. Ifyou are concerned about radon in your home, test the air in your home. Testing is Inexpensive and easy. Fix your home if the level of radon in your air is 4 picocuries per liter of air (pCi/L) or higher. There are simple ways to fix a radon problem that aren't too costly. For additional information, call the California radon program (1- 800 -745- 7236), the USEPA Safe Drinking Water Act Hotline (1- 800 - 426-4791), or the National Safe Council Radon Hotline (1- 800- 767 - 7236,) 1111011 SANTA ANA WATER QUALITY REPORT EXHIBIT 5 75C -55 13 pHG IMPORTED WATER GROUNDWATER TYPICAL SOURCE PARAMETER MCLG (MCLG) OF CONTAMINANT Range Average Range Average 1,4- Dioxane(ppb) NA NA NC NC NO ND Runoff /leaching from natural deposits; seawater influence 1,1 - Dichloroethene 6 10 NO ND ND -0.5 0.01 Discharge from Industrial chemical factories 'Turbidity: Is a measure of the cloudiness of the water. It is monitored in our imported water source because it is a good indicator of the effectiveness of the filtration system. ' The turbidity level of the filtered water shall be less than or equal to 0,3 NTU in 95% of the measurements taken each month and shall not exceed 1 NTU at any time. The averages and ranges of turbidity shown In the Secondary Standards were based on the treatment plant effluent. 3 The State required raw water coliform monitoring for all treatment plants beginning March 2008. Reporting level is 1 CFU/100ml- for total coliform and E. coli. " Data for the naturally- occurring fluoride were taken before the fluordation treatment began. Fluordation treatment of water supplies at all five MWD treatment plant's started sequentially from October 29, 2007 to December 3, 2007. Metropolitan was In compliance with all provisions of the State's Fluordation System Requirements. (Special Educational Statement Regarding Nitrate: Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. Nitrate in drinking water at levels above 45 mg /L is a health risk for infants of less than six months of age. Such nitrate levels in drinking water can Interfere with the capacity of the infants blood to carry oxygen, resulting in a serious illness; symptoms Include shortness of breath and blueness of the skin. Nitrate levels above 45 mg/L may also affect the ability of the blood to carry oxygen in other individuals, such as pregnant women and those with certain specific enzyme deficiencies, if you are caring for an infant, you should ask advice from your health care provider. 6Special Educational Statement Regarding Perchlorate: Perchlorate has been shown to interfere with uptake of iodide by the thyroid gland, and to thereby reduce the production of thyroid hormones, leading to adverse affects associated with inadequate hormone levels. Thyroid hormones are needed for normal prenatal growth and development of the fetus, as well as for normal growth and development In the Infant and chlld. In adults, thyroid hormones are needed for normal metabolism and mental function. 'Eight locations in the distribution system are tested quarterly for total unhalomethanes and haloacetic acids. "Radon: Radon is a radioactive gas that you can't see, taste, or smell. It is found throughout the U,S. Radon can move through the ground and into a home through cracks and holes in the foundation. Radon can build up in high levels in all types of homes. Radon can also get into Indoor air when released from Cap water from showering, washing dishes, and other household activities. Compared to radon entering the home through sail, radon entering the home through tap water will in most cases be a small source of radon in indoor air. Radon is a known human carcinogen. Breathing air containing radon can lead to lung cancer. Drinking water containing radon may also cause Increased risk of stomach cancer. Ifyou are concerned about radon in your home, test the air in your home. Testing is Inexpensive and easy. Fix your home if the level of radon in your air is 4 picocuries per liter of air (pCi/L) or higher. There are simple ways to fix a radon problem that aren't too costly. For additional information, call the California radon program (1- 800 -745- 7236), the USEPA Safe Drinking Water Act Hotline (1- 800 - 426-4791), or the National Safe Council Radon Hotline (1- 800- 767 - 7236,) 1111011 SANTA ANA WATER QUALITY REPORT EXHIBIT 5 75C -55 13