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Data Access Overview

Graphing Water Quality Data

    Directions for Graphing Water      Quality
     Samples of Water Quality Graphs
     EPA STORET Data

Pollutant and Water Quality     Information
     Ammonia
     Arsenic
     Benzene
     Dissolved Oxygen
     Fecal Coliform
     Lead
     Mercury
     Methyl-t-butyl Ether
     Nitrates
     pH
     Phosphorus
     Sulfate
     Turbidity & Sedimentation



Water Testing
    ph
     Nitrogen
     Fecal Coliform
     Dissolved Oxygen
     Company Websites


Methyl-t-butyl Ether

What is It?

-Methyl-t-butyl ether (MTBE) is a lead substitute introduced in 1979.

Why is it in the environment?

-It is made from blending chemicals such as isobutylene and methanol, and is used as an additive for unleaded gasoline to achieve more effective burning.

How does it affect water quality?

-MTBE may stick to particles in water, which will cause it to eventually settle to the bottom as sediment.

How does it affect adults?

- There have been no studies to date outlining the effects of drinking MTBE in humans.

-Animal testing has shown that drinking MTBE may cause gastrointestinal irritation, liver and kidney damage and nervous system damage.

How does it affect children?

-Unknown

What are the EPA regulations?

-The EPA has issued guidelines recommending that, to protect children, drinking water levels of MTBE not exceed 4 milligrams per liter of water (4 mg/L) for an exposure of 1-10 days.

-3 mg/L for longer-term exposures.