Some springs also contain abundant dissolved iron. The chemistry of hot springs ranges from acid sulfate springs with a pH as low as 0.8, to alkaline chloride springs saturated with silica, to bicarbonate springs saturated with carbon dioxide and carbonate minerals. Hot spring water often contains large amounts of dissolved minerals. In either case, the ultimate source of the heat is radioactive decay of naturally occurring radioactive elements in the Earth's mantle, the layer beneath the crust. The groundwater is heated either by shallow bodies of magma (molten rock) or by circulation through faults to hot rock deep in the Earth's crust. Locker rentals are available for $2 or you may use the wall hooks in the pool area for your belongings.Grand Prismatic Spring and Midway Geyser Basin in Yellowstone National ParkĪ hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. Do not leave anything of value unattended in the locker rooms.Please be aware of and follow all posted Aquatic Center rules and guidelines.If you have questions, please ask the lifeguard on deck Please respect and obey the lifeguards.Kickboards and pull buoys are only to be used by lap swimmers swimming in the lap lanes.Pool toys are allowed, but no hard balls of any kind.Swim diapers are required for small children who are not potty-trained or for people with incontinence.Caregivers, ages 14 to 17, may bring children under age ten (who can swim 25 meters without stopping) to the pool with a note from the children’s parents.Children 9 and under who pass the swim test must have an adult in the facility with them but not in the water.Children ten years or older who can swim 25 meters without stopping may be left without adult supervision.There must be one adult per three non-swimmers in the water at all times.Children who are unable to pass the swim test (swim 25 meters on their fronts without stopping) must stay within arms reach of an adult in the water at all times.Comfort and emotional support animals and other pets are prohibited. Service animals trained to do work or perform tasks for people with disabilities are permitted.
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