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  2. Water testing - Wikipedia

    en.wikipedia.org/wiki/Water_testing

    Water samples must be analyzed using EPA-approved testing methods, by laboratories that are certified by EPA or a state agency. [ 11 ] [ 12 ] The 2013 revised total coliform rule and the 1989 total coliform rule are the only microbial drinking water regulations that apply to all public water systems.

  3. January 2025 Richmond water crisis - Wikipedia

    en.wikipedia.org/wiki/January_2025_Richmond...

    Early in the afternoon, the first Hanover water sample was sent to a state-certified laboratory once water service was restored. The next round of testing was set for early afternoon on January 10. [36] Many Henrico residents' water was restored by this day. [16]

  4. January 2025 Richmond water outage - Wikipedia

    en.wikipedia.org/wiki/January_2025_Richmond...

    While the water was lower in terms of pressure and flow, it was moving at a higher rate of speed than expected. [21] Early in the afternoon, the first Hanover water sample was sent to a state-certified laboratory once water service was restored. The next round of testing is set for early Friday afternoon. [37]

  5. Safe Drinking Water Act - Wikipedia

    en.wikipedia.org/wiki/Safe_Drinking_Water_Act

    Water samples must be analyzed using EPA-approved testing methods, by laboratories that are certified by EPA or a state agency. [ 56 ] [ 57 ] A PWS must notify its customers when it violates drinking water regulations or is providing drinking water that may pose a health risk.

  6. Drinking water quality in the United States - Wikipedia

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

    The rule mandates additional requirements for sampling tap water, corrosion control, public outreach and testing water in schools. The rule continues the requirement for replacement of lead service lines when the action level for lead is exceeded, but requires that a utility replace at least 3 percent of its lines annually, compared to 7 ...

  7. NSF International - Wikipedia

    en.wikipedia.org/wiki/NSF_International

    NSF (an initialism for National Sanitation Foundation) is a public health organization [1] headquartered in Ann Arbor, Michigan [2] that tests and certifies foods, water, and consumer products. [1] It also facilitates the development of standards for these products, [ 1 ] labeling products it has certified to meet these standards with the NSF mark.

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