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  2. Backflow prevention device - Wikipedia

    en.wikipedia.org/wiki/Backflow_prevention_device

    Backflow means the undesirable reversal of flow of a liquid, gas, or suspended solid into the potable water supply; a backflow preventer is designed to keep this from happening. Points at which a potable water system connects with a non-potable water system are called cross connections .

  3. Coppell, Texas - Wikipedia

    en.wikipedia.org/wiki/Coppell,_Texas

    George Coppell. The Coppell area was settled by German and French immigrants in the 1840s. Members of the Peters Colony also settled here in the 1840s. [8] Originally named Gibbs Station, after Barnett Gibbs (one of Texas's first lieutenant governors), the town was renamed in 1892 for George Coppell, a New York banker, who was born in Liverpool, England and probably moved to the United States ...

  4. Backwater valve - Wikipedia

    en.wikipedia.org/wiki/Backwater_valve

    Backwater valves commonly activate when a city's sewer lines are unable to handle a large amount of falling precipitation; this puts homes that are tied into the storm lines at risk of having water back flow into them. [citation needed] There is a big difference between backwater valves and backflow preventers: [citation needed]

  5. Coppell - Wikipedia

    en.wikipedia.org/wiki/Coppell

    Coppell may refer to: Coppell, Ontario; Coppell, Texas. Coppell High School; Harry Coppell (born 1996), English pole vaulter; Steve Coppell (born 1955), English ...

  6. North Lake (Dallas) - Wikipedia

    en.wikipedia.org/wiki/North_Lake_(Dallas)

    The City of Irving, Texas leased land south of the lake as a park in the 1980s and 1990s. North Lake Park was popular with personal watercraft enthusiasts and provided a runway for radio-controlled aircraft. The owner of the lake, power company TXU, turned down offers in 2000 to sell the land to the cities of Coppell, Texas or Irving, Texas.

  7. Lead and Copper Rule - Wikipedia

    en.wikipedia.org/wiki/Lead_and_Copper_Rule

    EPA illustration of lead sources in residential buildings Infographic about lead in drinking water. The Lead and Copper Rule (LCR) is a United States federal regulation that limits the concentration of lead and copper allowed in public drinking water at the consumer's tap, as well as limiting the permissible amount of pipe corrosion occurring due to the water itself. [1]

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