D2 water distribution test exam 2023 with 100% correct answers

What is the primary purpose of the SDWA? To create uniform national standards for drinking water quality Who sets Maximum Contaminants Levels (MCLs)? USEPA What are some of the duties of the EPA? Sets MCLs, delegates enforcement of SDWA to state agencies, provides grant funds, monitors state activities, provides continued research What is state primacy? Giving the authority to the state to implement and enforce regulations True or False: State requirements must be at least as stringent as those set by USEPA True. A public water system is a system that supplies piped water for human consumption and that has at least ___ service connections or serves ___ or more persons for ___ or more days of the year. 15, 25, 60 What is an nontransient, noncommunity public water system? Give an example of one. Establishments with their own private water systems that serve an average of 25 persons that do not live at the location, but the same people use the water for more than 6 months per year. Example: school or factory What is a transient, noncommunity public water system? Give an example of one. Establishments with own water system and serve at least 25 persons a day but these people only use the water occasionally and for short periods of time. Example: Motel or Park What is a community public water system? Give an example of one. Establishments with their own water supply that serve more than 15 homes. Example: HOA, or municipal water utilities Which of the public water systems are required to only monitor for nitrate, nitrite, and microbiological contamination? transient, noncommunity What does the National Primary Drinking Water Regulations (NPDWRs) specify? MCLs or a treatment technique requirement for contaminants that may be found in drinking water and could have an adverse health effect on humans What does the National Secondary Drinking Water Regulations (NPDWRs) specify? water contaminants that may adversely affect aesthetic qualities of the water such as taste, odor or color