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Revisions proposed for state groundwater standards

An online public hearing at 6 p.m. Tuesday, Feb. 2, will take comment on proposed revisions to the N.C. Groundwater Quality Standards. Written comments will be accepted through March 16. 

Proposed changes include: 

  • Adoption of a groundwater quality standard for 44 substances with established interim maximum allowable concentrations, some with revised values.
  • Addition of a groundwater quality standard for three substances (2,6-dinitrotoluene, strontium and total PFOA and PFOS) without established interim maximum allowable concentrations.
  • Organization of the groundwater standards into a table.
  • Addition of Chemical Abstracts Service Registry Numbers for the groundwater standards.
  • The removal of synonyms.
  • A change in some units of measure to parts per billion (µg/L), when appropriate.
  • Addition of rule text to add a notification process for the establishment of an interim maximum allowable concentration.
  • Addition of rule text to clarify the triennial review process.
  • Groundwater Quality standards outline maximum allowable concentrations of various substances resulting from any discharge of contaminants to North Carolina’s land and water. The levels established are values that do not pose a threat to human health, or that would otherwise render the groundwater unsuitable for its intended best usage as an existing or potential source of drinking water supply for humans.

For more information, including meeting log-on info and a link to the proposed revisions, visit bit.ly/2Yirk1f

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