Found at   https://stateimpact.npr.org/oklahoma/2013/10/31/why-oklahoma-city-wont-tap-water-from-the-aquifer-under-its-own-feet/

  

  The city of Norman has opted out of a plan to partner with Oklahoma City to pipe water from southeastern Oklahoma. Instead, the city will rely on Lake Thunderbird, groundwater wells and water reuse as its chief means of meeting long-term water needs. Most people like to use well water but some people in the country part of norman use well water. Cleveland County drinking water has higher levels of a potentially dangerous chemical than any other Oklahoma county, according to a recent study, but a city official said it is not something to worry about.

Made up of Norman, Moore and part of Oklahoma City, Cleveland County's drinking water contains the highest levels of chromium-6 of any county in the state, according to a Sept. 20 report by nonprofit Environmental WorkinGroup.The report refers to the film "Erin Brockovich," which depicts a city with polluted tap water and calls for lower amounts of chromium-6 in water nationwide
Done by Kristine

Oklahoma city uses water from  Lake Thunderbird and other resources.  Authorized tribal or federal law approved by EPA that describe the desired condition of a water body and the means by which that condition will be protected or achieved. https://www.epa.gov/standards-water-body-health/what-are-water-quality-standards

A  part of Earth's water is in the form of surface freshwater. Although most people get the water they drink from rivers or lakes.
-By Juliana Linares

                                 
Water resources are sources of water that are useful or potentially useful to humans. It is important  because it is needed for life to exist. Many uses of water  include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water. Water on Earth cycles from the oceans, where it evaporates from the surface, into the atmosphere, forms clouds, falls onto the land as rain, travels through wetlands, rivers, lakes and underground then returns to the ocean — collectively known as the hydrologic cycle.Heat from the Sun causes water  to evaporate from the surface of lakes and oceans. This turns the liquid water into water  vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration. Water can also get into the atmosphere from snow and ice.The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, surface runoff, and subsurface flow. In doing so, the water goes through different forms: liquid, solid (ice) and vapor.The Water Cycle summary, USGS Water Science School