NGOs and independent analysts tell panel data support science‑backed nitrate limits and transparency

Aug 19, 2025

Presenters from academic, legal and advocacy groups presented independent analyses that they said demonstrate a statistical relationship between farm surplus (A−R) and elevated well nitrate; they urged the panel to recommend enforceable limits and to ask the state for field‑level acreage data and full QA/QC documentation.

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Iris Stewart Frey, a hydrologist at Santa Clara University, and Jake D’Alessandro of the Water and Climate Justice Lab presented an independent analysis of publicly available well chemistry and coalition INMP data and told the panel that the data show a relationship between farm‑level nitrogen surplus and elevated well nitrate concentrations.

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