WaterQ

Dinoseb in Drinking Water: Health Risks, Sources, and How to Remove It

Alex Carter
Water Quality Researcher · Published 2026-06-23

Dinoseb is an organic chemical contaminant that can sometimes be found in drinking water supplies. As an organic compound, its presence is regulated by the US Environmental Protection Agency. The EPA has established a Maximum Contaminant Level (MCL) of 7 micrograms per liter (7 μg/L) for Dinoseb in drinking water.

Health Effects

Exposure to Dinoseb in drinking water above the regulatory standard is associated with adverse health effects. Specifically, consuming water containing high levels of this organic contaminant may lead to reproductive difficulties. It is important to monitor and limit exposure to ensure long-term reproductive health.

How Dinoseb Gets Into Tap Water

Dinoseb primarily enters water resources through human activities and subsequent transport. The main source of this contaminant is its application as a herbicide in agricultural or land management practices. Rainwater and agricultural runoff can carry the chemical from treated areas into local drinking water sources.

How to Remove Dinoseb From Your Water

Water treatment technologies are available to effectively remove this organic contaminant from drinking water. Granular activated carbon is a recognized treatment method that is commonly utilized for filtration. Certified carbon filtration systems can be installed to reduce levels of Dinoseb to meet safety guidelines.

Should You Test Your Water?

To check for Dinoseb in your water, you can review your local utility's annual Consumer Confidence Report or use a WaterQ search tool. If you use a private well near agricultural areas, scheduling a periodic test through a certified laboratory is a practical precaution. You can also look up your local water system on WaterQ or check the Dinoseb data page for reported levels in your area.

Frequently Asked Questions

Is Dinoseb dangerous in drinking water?

Dinoseb in drinking water can pose health risks if levels exceed the federal standard of 7 μg/L. Long-term exposure to elevated concentrations is linked to reproductive difficulties. Keeping levels below the regulatory limit is key to minimizing potential health concerns.

How does Dinoseb get into tap water?

Dinoseb can enter tap water supplies through runoff from areas where it has been used. This is typically associated with agricultural herbicide application.

How can I remove Dinoseb from my water?

You can remove Dinoseb from your drinking water using granular activated carbon treatment systems. These filtration systems are designed to effectively reduce organic chemical contaminants.

Source: EPA National Primary Drinking Water Regulations and WaterQ National Database. For more contaminants, visit our contaminant library.