* CLTWater encourages customer to research and verify before purchasing products that claim to reduce water bills or remove 'impurities.'
* Customers can find general tips and alerts at the Better Business Bureau website (http://charlotte.bbb.org/).
Beware of false or misleading information about Charlotte-Mecklenburg's water quality:
* No City or County staff goes door-to-door to sell anything. If a CMUD employee comes to your door for water testing purposes, he/she should be wearing identification and driving a white, marked City vehicle.
* Individual tastes will vary and some customers choose to install filters for that reason. However, tap water delivered to customers meets and often exceeds all health and safety standards and does not require additional filtration at home. CMUD conducts more than 150,000 water quality tests annually to monitor the safety of our community's drinking water. It's conceivable - but not often - that private plumbing issues could impact a customer's tap water quality.
* Tap water is not acidic. The pH scale ranges from 0 to 14. A reading of 7 is neutral, with acids falling below 7 and bases above 7. CMUD adjusts the pH of tap water to slightly above 7 to reduce corrosion in water pipes.
* Chlorine is used in the treatment process to prevent waterborne illness, while fluoride provides a defense against tooth decay. The Environmental Protection Agency regulates drinking water and has set a safety limit of 4 parts per million (proportional to $0.04 in $10,000). In Charlotte, chlorine and fluoride levels in drinking water are well below that safety limit at about 1 ppm.
* Water hardness is defined by the amount of trace minerals present, such as calcium and magnesium. Water is considered 'hard' if it has more than 125 parts per million of trace minerals. Charlotte's tap water has an average of 34 ppm or 1.8 grains per gallon of trace minerals, so it is considered 'soft' water.
The safety of our customers' drinking water is the top priority for your clean water professionals at CLTWater. Customers can dial 311 or 704-336-7600 if they have a water quality concern.