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  2. Wellhead protection program - Wikipedia

    en.wikipedia.org/wiki/Wellhead_protection_program

    Throughout the nation, over 21 million people that rely on their community's water sources have experienced safe drinking water violations on health based quality standards. [15] As of 2022, 4.1 million Americans still did not have access to safe drinking water and basic sewage treatment.

  3. Grupo Carso - Wikipedia

    en.wikipedia.org/wiki/Grupo_Carso

    Grupo Carso S.A.B. de C.V. is a Mexican global conglomerate company owned by Carlos Slim. It was formed in 1990 after the merger of Corporación Industrial Carso and Grupo Inbursa. The name Carso stands for Carlos Slim and Soumaya Domit de Slim, his wife. In May 2014, the conglomerate had a stock market capitalisation of over $12 billion US ...

  4. Safe Water System - Wikipedia

    en.wikipedia.org/wiki/Safe_Water_System

    The Safe Water System (SWS) is a series of inexpensive technologies that can be applied as water quality interventions in developing countries. [1] It was developed in conjunction by the US Centers for Disease Control and Prevention and the Pan American Health Organization. As of 2014, SWS had been implemented in thirty-five countries.

  5. 15 Largest Desalination Companies in the World - AOL

    www.aol.com/news/15-largest-desalination...

    Shanghai Safbon Water Service Co., Ltd. is a public listed Chinese company. With a market capitalization of $1 billion, the water treatment entity is involved in industrial water treatment ...

  6. Biosand filter - Wikipedia

    en.wikipedia.org/wiki/BioSand_Filter

    Feed turbidity in one study ranged from 1.86 to 3.9 NTU. In a study water was obtained from sample taps of water treatment plants from three local reservoirs. It poured through a slow sand filter and results showed that turbidity decreased to a mean of 1.45 NTU. [1] In another study using surface water a 93% reduction in turbidity was observed. [7]

  7. Drinking water quality legislation of the United States

    en.wikipedia.org/wiki/Drinking_water_quality...

    The Safe Drinking Water Act is the principal federal law governing public water systems. [1] These systems provide drinking water through pipes or other constructed conveyances to at least 15 service connections, or serve an average of at least 25 people for at least 60 days a year. As of 2017 there are over 151,000 public water systems. [2]