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EQB hears multi-agency plan to address nitrate in groundwater; MDH to lead immediate public-health response
Summary
EQB received an interagency briefing on high nitrate levels in Minnesota groundwater. MDH will lead immediate response (free testing/mitigation for priority households, outreach, well inventory), while MDA and MPCA outlined long-term prevention measures including local advisory teams, fertilization rules, and permit changes.
The Environmental Quality Board on April 17 heard an extended multi-agency briefing on nitrate contamination in Minnesota groundwater and steps agencies will take to protect public health and reduce sources of nitrate.
Executive Director Catherine Neuschler summarized the issue and the state’s approach: a three-phase response prompted by petitions to the U.S. Environmental Protection Agency and EPA directives. MDH will lead phases 1 and 2 focused on protecting people from exposure; MDA and MPCA will lead phase 3 aimed at preventing nitrate from entering water resources.
Tanny Eschenauer, water policy manager at the Minnesota Department of Health, described the public-health priorities. MDH’s health risk limit for nitrate is 10 milligrams per liter, and Eschenauer said, “drinking water at 10 milligrams per liter and below is safe for everyone.” MDH emphasized infants under 1 year and pregnant people as highest-priority groups and said the state lacks a comprehensive inventory of private wells; staff estimated about 1,000,000 private well users…
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