We are pleased to present the 2011 Water Quality Report. This report is designed to inform the public about the quality of water and services provided on a daily basis. The GWC maintains its own water quality testing laboratories. The experienced and certified water quality personnel analyze chemical and bacteriological test on water samples throughout the year. These samples are taken from each section of the treatment process as well as from various sites within the distribution system and test are analyzed 365 days a year to assure water safety and quality. We would like the public to be assured that we will continue to monitor, improve, and protect the water system and deliver a high quality product direct from the tap. Water is the most indispensable product in every home and we ask everyone to be conservative and help us in our efforts to protect the water source and the water system.
Regulated Contaminants in the Water Supply
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and wells. As water travels over the surface of the land or through the ground, it dissolves naturally occurring minerals and, in some cases, radioactive material, and may pick up substances resulting from the presence of animals or from human activity.
In order to ensure that tap water is safe to drink, EPA prescribes regulations that limit the amount of certain contaminants in water provided by public water systems. FDA regulations establish limits for contaminants in bottled water to provide the same protection for public health.
Drinking water, including bottled water, may reasonably be expected to contain at least small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information about contaminants and potential health effects may be obtained by calling the Environmental Protection Agency’s Safe Drinking Water Hotline 1-800-426-4791.
Contaminants that may be present in source water include:
- Microbial Contaminants. Examples include viruses and bacteria that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
- Inorganic Contaminants. Examples include salts and metals, that can be naturally occurring or result from storm water runoff, industrial or domestic wastewater discharges, oil and gas production, mining or farming.
- Pesticides and Herbicides. These may come from a variety of sources such as agriculture, storm water runoff, and residential use.
- Organic Chemical Contaminants. These include synthetic and volatile organic chemicals, which are by-products of industrial processes and petroleum production, and can also come from gas stations, storm water runoff, and septic systems.
- Radioactive Contaminants. These can be naturally occurring or be the result of oil and gas production and mining activities.