Basic water works operations exam questions and answers already passed

Basic water works operations exam questions and answers already passed How long must a water system save their bacteriological test results? 5 years Which of the following would be classified as a community type public water system? Mobile home park Which of the following agencies is responsible for regulating drinking water standards in the state of Texas? TCEQ The utility employee with the most frequent contact with the customer is the? Meter reader Community water systems are required to provide customers with a yearly report on the system's water quality called the? Consumer confidence report Helpful, informative handouts sometimes included in water bills are called? Stuffers The process of the water moving between the earth and the atmosphere is called the? Hydrologic cycle The current limits on turbidity in filtered water are? < or =0.3 NTU'S The 2 main minerals that cause hardness in water are? Calcium and magnesium Water-bearing formations below the earth's surface are called? Aquifers All public water well may not have any source of contamination within? 50 feet Before putting a well into service,it must be disinfected by chlorination to a level of? 50mg/L for 6hours The particles formed after coagulation are called? Floc The particles that settle to the bottom of a clarifier firm into? Sludge The final step in removing solids in surface water treatment is? Filtration Waterborne disease causing organisms are called? Pathogens According to the rules and regulations for public water systems, a public water supply using chlorine as the distribution disinfectant must maintain a free chlorine residual of what in the far reaches of the system? 0.2 mg/L The most superior chemical in oxidizing taste, odor, color, iron,manganese, or organics in water is? Ozone Water systems are required to have a storage capacity of how many gallons per connection? 200 What psi is created by 1 foot column of water? 0.433 Which pump type is the most commonly used by the