Westborough Water Department

The Drinking Water Sources and Treatment The Westborough Water District buys 100% of the water from the Bay area Public Utility Commission rate (SFPUC). Water comes by the San Francisco Regional Water System (SFRWS), which is owned and operated by the SFPUC, our major drinking water source originates from springtime snowmelt flowing over the Tuolumne River to storage in Hetch Hetchy Reservoir. The well-protected Macizo water source is usually exempt from filtration requirements by the United States Epa (USEPA) and Condition Water Resources Control Board's Division of Water (SWRCB-DDW). To meet the right drinking water standards intended for consumption, water coming from Hetch Hetchy Tank is treated by SFPUC using the subsequent processes: ultraviolet light and chlorine disinfection, pH adjustment intended for optimal corrosion control, fluoridation for oral health protection, and chloramination for maintaining medical disinfectant residual and reducing the formation of disinfection byproducts. Hetch Hetchy water is supplemented with surface drinking water from two regional watersheds. Rainfall and runoff from the thirty-five, 000-acre Alameda Watershed in Alameda and Santa Clara areas are collected inside the Calaveras and San Antonio reservoirs and delivered to the Sunol Valley Water Treatment Plant (SVWTP). Rainfall and runoff from your 23, 000-acre Peninsula Watershed in San Mateo County will be stored in the Amazingly Springs, San Andreas, and Pilarcitos reservoirs, and are delivered to the Harry Tracy Drinking water Treatment Plant. Additionally to these local resources, the SWRCB-DDW authorized the SFPUC to work with the surface water in Lake Eleanor, Pond Cherry and the connected creeks all communicated via the Lower Cherry wood Aqueduct, Early Consumption Reservoir and Tuolumne River (collectively referred to as Upcountry Non-Hetch Hetchy Sources, or UNHHS) as additional water sources to the SFRWS. The UNHHS drinking water, if used, will probably be treated at the SVWTP before service to clients. In 2017, the SFRWS did not make use of UNHHS. Water in the two local treatment plants is susceptible to filtration, disinfection, fluoridation, and optimum corrosion control by ph level adjustment. ? Drinking water Quality The SFPUC’s Water Quality Department (WQD) regularly gathers and tests drinking water samples from reservoirs and designated sample points throughout the program to ensure the water sent to you meets or perhaps surpasses federal and state drinking water requirements. In 2017, WQD staff conducted a lot more than 55, 273 water tests in the tranny and distribution devices. This is in addition to the considerable treatment process control monitoring performed by SFPUC’s certified providers and online devices. Drinking water, including water in bottles, may reasonably be anticipated to contain in the least small amounts of some contaminants. The existence of contaminants does not always indicate that drinking water poses a wellness risk. To make sure that tap water is safe to imbibe, the USEPA and SWRCBDDW prescribe rules that limit the number of certain contaminants in water provided by general public water systems. The U. S. Fda regulations and Washington dc law also set up limits for pollutants in bottled water that offer the same protection intended for public health. Watersheds Safety The SFPUC performs watershed sanitary studies for the Hetch Hetchy source yearly and local water resources every five years. The latest local hygienic survey was designed in 2016 for the time of 2011-2015. The SFPUC conducted a watershed sanitary study for UNHHS in 2015 as part of the drought response strategy efforts. These studies evaluate the sanitary circumstances, water quality, potential contamination sources as well as the results of watershed management activities, and were completed with support from partner companies including the National Recreation area Service and US Forest Service. These types of surveys identified animals, stock, and human being activities as potential contamination sources. You might contact the Bay area District office of SWRCB-DDW at 510-620-3474 for the review of these types of reports. ? Fluoridation and Dental Fluorosis Mandated by Condition law, water fluoridation is a widely approved practice proven to be effective and safe for preventing and controlling tooth corrosion. The SFPUC’s fluoride-based target level inside the water is zero. 7 milligram every liter (mg/L, or perhaps part per mil, ppm), consistent with the Might 2015 State regulating guidance on the optimal fluoride-based level. Infants given formula mixed with drinking water containing fluoride with this level may have a chance of producing tiny white lines or streaks within their teeth. These markings are referred to as moderate to very moderate fluorosis and are frequently only visible within the microscope. Even in situations where the marks will be visible, they do not present any health risk. The Centers intended for Disease Control (CDC) considers it dependable optimally fluoridated drinking water for preparing baby formula. To lessen the opportunity of dental fluorosis, you may choose to use low-fluoride bottled water to prepare baby formula. Nevertheless, kids may still develop dental fluorosis because of fluoride intake from all other sources such as meals, toothpaste, and dental care products. Drinking-Water and Lead Lead in drinking water are mainly from materials and components associated with support lines and house plumbing. There are simply no known lead support lines in the SFRWS. We are responsible for offering high-quality drinking water, yet cannot control the range of materials used in plumbing related components. It is possible that lead levels at your house . may be higher than in others in the community due to materials used in the home’s plumbing. If present, elevated amounts of lead can cause severe health problems, especially for women that are pregnant and young children. Babies and young children are usually more vulnerable to lead in drinking water than the basic population. You can reduce the potential for lead publicity, when your water continues to be sitting for several several hours, by flushing the tap for half a minute to 2 moments (or until the temperature of the water has changed) before using water intended for drinking or cooking food. If you are concerned about business lead levels in your drinking water, you may wish to have the water tested. More information on lead in drinking water, testing strategies, and steps you can take to reduce exposure are available from your USEPA's Safe Drinking Water Servicenummer 800-426-4791, or in www.epa.gov/lead. ? Particular Health Needs Many people may be more vulnerable to contaminants in water than the general populace. Immuno- compromised individuals, such as those with malignancy undergoing chemotherapy, individuals who have undergone body organ transplants, people with HIV/AIDS or other defense mechanisms disorders, some seniors and infants, could be particularly at risk coming from infections. These people ought to seek advice regarding drinking water from their physicians. USEPA/CDC guidelines upon appropriate means to reduce the risk of infection simply by Cryptosporidium and other microbes contaminants are available from your USEPA's Safe Drinking Water Servicenummer 800-426-4791 or in www.epa.gov/safewater. ?.

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