MCGA Supports Science Based Water Rule

By Scout Nelson

The Minnesota Corn Growers Association (MCGA) highlights the strengths of the Minnesota Groundwater Protection Rule (GPR), which aims to reduce nitrate-nitrogen impacts from fertilizer on groundwater. The rule focuses on targeted actions, local collaboration, and the use of best management practices (BMPs).

The GPR takes a science-based approach by recognizing that groundwater moves slowly. This means current nitrate levels often reflect past farming practices. Because of this, the rule should be evaluated over a longer period, and new restrictions are not necessary at this time.

Data shows that more than 99% of Minnesota’s public water systems meet the federal nitrate safety standard. Also, 93% of water sources fall within normal nitrate levels. State monitoring does not show widespread increases in nitrate levels, supporting the effectiveness of current practices.

The rule includes two main parts. The first part limits fertilizer uses in fall and frozen soils in sensitive areas, such as regions with vulnerable groundwater or near public water supply areas. The second part focuses on areas where nitrate levels are already high. In these areas, a step-by-step system is used to reduce risks.

Local advisory teams play an important role in this process. These teams include producers, experts, and local agencies who create area-specific BMPs. The rule requires that at least 80% of cropland follows these practices within three growing seasons. If not, stricter actions may be taken.

In many areas, cooperation has already shown positive results. For example, conservation efforts have improved farming practices and reduced risks to water quality.

MCGA has been actively involved in shaping and defending the rule since its start in 2019. The group also works to represent growers in discussions about fertilizer regulations.

Recently, environmental groups have pushed stricter rules, leading to legal actions and reviews. MCGA continues to support the current rule, stating it already provides a strong and balanced approach.

Overall, the GPR combines science, collaboration, and practical solutions to protect groundwater while supporting agriculture. Its success depends on continued monitoring and the adoption of effective farming practices over time.

Photo Credit: gettyimages-zms