March 27, 2017

The Environmental Protection Agency (EPA) is engaged in a process to derive a new, health-based benchmark for lead in drinking water.  EPA’s draft report on approaches to develop such a benchmark is in a public comment period (ends April 5, 2017). Currently, through the Lead and Copper Rule (LCR), EPA sets an action level for lead that essentially signifies a lead level at which water systems must undertake corrosion control actions.

The Environmental Defense Fund (EDF), in response to EPA’s draft report, has posted an excellent series of articles with clear explanations of the factors and considerations that underlie an understanding of lead exposure hazards:

  1. “With draft report, EPA takes major step to help communities assess risks from lead in drinking water” (Jan. 13) explains the approaches used by EPA to model a health-based benchmark.
     

  2. “When it comes to lead, formula-fed infants get most from water and toddlers from food, but for highest exposed children the mai...

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