The Glyphosate Executive Order Could Change Your Tap Water. Here's What You Need to Know

A new executive order is pushing for increased domestic production of glyphosate, the active ingredient in Roundup weedkiller, raising concerns about contamination in drinking water supplies. Nearly 300 million pounds of glyphosate are already applied to U.S. farmlands each year, and the chemical has been detected in 94% of streams and rivers across the country. If production ramps up as ordered, more of this herbicide could end up in your tap water.

What Is Glyphosate and Why Should You Care?

Glyphosate is a widely used herbicide that has been applied to American farmland since 1974. It works by blocking an enzyme in plants that affects their growth and metabolism. While manufacturers have long advertised it as safe, a growing body of research has linked glyphosate exposure to serious health concerns. The chemical doesn't stay where it's sprayed; when it rains or floods, runoff carries glyphosate-contaminated soil into rivers, lakes, and streams that feed municipal water systems. It can also seep into groundwater that supplies private wells.

The February 2026 executive order signed by President Donald Trump seeks to ensure the country "has a continued and adequate supply" of glyphosate-based herbicides, citing their importance to agricultural productivity. However, health advocates warn that increased production could mean higher concentrations of the chemical in drinking water sources, particularly in areas without adequate filtration systems.

What Health Risks Are Linked to Glyphosate Exposure?

Research has connected glyphosate exposure to a range of health conditions that extend beyond what many people realize. Studies have found associations between glyphosate and the following:

• Neurological Disorders: Including Parkinson's disease, Alzheimer's disease, and autism spectrum disorder
• Cancer: Non-Hodgkin lymphoma (a cancer of the immune system) and multiple myeloma (a cancer of blood plasma cells)
• Metabolic Issues: A first-of-its-kind study linked Roundup to fatty liver disease and metabolic dysfunction in children, which can be precursors to stroke and diabetes
• Hormonal Disruption: Glyphosate may interfere with endocrine function, causing reproductive health problems
• Gut Health Changes: The herbicide can alter the composition of beneficial bacteria in the digestive system
• Oxidative Stress: Cellular damage that contributes to aging and disease

Animal studies also suggest that glyphosate exposure during pregnancy may impair fetal development, leading to reduced infant body weight and skeletal changes. These findings have prompted some health-conscious families to take steps to reduce their exposure through home water filtration.

How Much Glyphosate Is Considered Safe in Drinking Water?

The U.S. Environmental Protection Agency (EPA) has set a maximum contaminant level (MCL) of 0.7 milligrams per liter (700 parts per billion) for glyphosate in drinking water under the Safe Drinking Water Act (SDWA). However, some states have adopted stricter limits. Minnesota, for example, proposes a limit of 0.5 milligrams per liter (500 parts per billion), which is lower than the federal standard. The fact that different states are setting their own limits reflects ongoing debate about what level is truly safe for long-term consumption.

How to Test Your Water for Glyphosate

Because glyphosate has no taste, odor, or color, you cannot detect it by sight or smell alone. Professional testing is the only reliable way to know if your water contains the herbicide. If your water comes from a public utility, you can start by reviewing your annual Consumer Confidence Report (CCR), also called a water quality report. This document lists all detected contaminants and whether they exceed EPA limits. You can find it on your local utility's website or through the EPA's CCR search tool.

For more detailed testing, you can purchase a water test kit from a certified laboratory in your area and submit a sample for analysis. This is especially important if you have a private well, as unregulated wells may contain higher concentrations of glyphosate due to the lack of mandatory testing and treatment.

How to Remove Glyphosate From Your Tap Water

If testing reveals glyphosate in your water, or if you simply want to reduce your exposure, two filtration methods have proven most effective. Both can remove the herbicide at the point of use, meaning you get cleaner water directly from your tap without relying on municipal treatment alone.

• Reverse Osmosis Systems: These use pressure to push water through a semi-permeable membrane with ultra-fine pores that block microscopic contaminants like glyphosate. Research shows that reverse osmosis can remove up to 100% of pesticides from water. Systems like Moen's Reverse Osmosis Water Filtration System use a four-stage process with a pre-filter to remove sediment, an RO membrane to capture tiny pollutants, and a post-filter to improve taste and clarity.
• Activated Carbon Filtration: Coconut shell activated carbon can remove up to 98% of glyphosate through a process called adsorption, where the chemical molecules stick to the carbon's porous surface. Whole-house systems like SpringWell's Whole-House Filtration Systems use this method and also remove a wide range of other drinking water contaminants while improving taste and odor.
• Combination Approaches: Some families use both methods in sequence, with activated carbon as a first stage and reverse osmosis as a second stage, for maximum protection against multiple contaminant types.

Both filtration options are more cost-effective than buying bottled water long-term and reduce plastic waste. The choice between them depends on your budget, space constraints, and whether you want to filter your entire home's water or just your drinking water at the kitchen sink.

What Does This Mean for Your Family Right Now?

The executive order to increase glyphosate production doesn't mean contamination will spike overnight, but it does signal that the herbicide will remain a common agricultural chemical for years to come. For families concerned about long-term exposure, taking action now makes sense. Start by checking your water quality report and considering a professional test if you have a private well. If glyphosate is detected or if you want added peace of mind, installing a reverse osmosis or activated carbon filtration system is a practical step that also improves taste and removes other common contaminants.

The good news is that you have control over what you drink at home. Unlike broader water policy changes that take years to implement, home filtration gives you immediate protection and puts your family's water quality in your hands.