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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

Lead

What is It?

-Lead is a naturally occurring heavy metal in the environment.

-Lead waste in the environment is a result of its many former industrial uses in society.

Why is it in the environment?

-Lead occurs in drinking water mainly from the corrosion of plumbing materials in the water distribution system.

-Most municipal water systems still use lead piping in parts of their water discharge system.

How does it affect water quality?

-The amount of lead in drinking water depends heavily on the corrosivity of the water.

-Corrosivity of water is influenced by: pH, alkalinity, dissolved inorganic carbonate, calcium and hardness.

How does it affect adults?

-At low levels of exposure, these effects may include interference with red blood cell chemistry and increased in blood pressure.

-Chronic exposure to lead has been linked to vascular and kidney disease in humans.

How does it affect children?

-Delays normal physical and mental development in children.

-Deficits in the attention span, hearing, and learning abilities of children may develop.

-Lead changes the levels of certain blood enzymes in the body and in neurological development at blood lead levels so low as to be essentially without a threshold.

What are the EPA regulations?

MCL: zero