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2. Richmond water production restored, boil water advisory ... - AOL

   www.aol.com/richmond-under-urgent-boil-water...

   The boil water advisory also remains in effect until Richmond can test the water and ensure it is safe to drink. "I am incredibly proud of our City staff," said Richmond Mayor Danny Avula.

3. Boil-water advisory - Wikipedia

   en.wikipedia.org/wiki/Boil-water_advisory

   First known science-based boil-water advisory (1866) John Snow's 1849 recommendation that water be "filtered and boiled before it is used" is one of the first practical applications of the germ theory of disease in the area of public health and is the antecedent to the modern boil water advisory. Snow demonstrated a clear understanding of germ ...

4. Drinking water quality in the United States - Wikipedia

   en.wikipedia.org/wiki/Drinking_water_quality_in...

   This USGS map shows the number of PFAS detected in tap water samples from select sites across the US. EPA began requiring public water systems to monitor for PFOA and perfluorooctanesulfonic acid (PFOS) in 2012, and published drinking water health advisories, which are non-regulatory technical documents, in 2016. [75]

5. Residents near Millerton Lake advised to continue boiling ...

   www.aol.com/residents-near-millerton-lake...

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6. Harmful algal bloom - Wikipedia

   en.wikipedia.org/wiki/Harmful_algal_bloom

   Boiling the water at home before drinking does not remove the toxins. [ 9 ] In August 2014 the city of Toledo, Ohio advised its 500,000 residents to not drink tap water as the high toxin level from an algal bloom in western Lake Erie had affected their water treatment plant's ability to treat the water to a safe level. [ 23 ]

7. Water purification - Wikipedia

   en.wikipedia.org/wiki/Water_purification

   The Metropolis Water Act introduced the regulation of the water supply companies in London, including minimum standards of water quality for the first time. The Act "made provision for securing the supply to the Metropolis of pure and wholesome water", and required that all water be "effectually filtered" from 31 December 1855. [ 41 ]