Water Quality



Drinking Water 

Recreational Water

Recycle​d Water

Waste Water


Clean Water Act Analytical Methods

 Recreational Water

The EPA develops criteria to protect people from organisms, such as viruses and bacteria, and their associated toxins in water bodies (e.g., lakes, rivers, beaches).  Swimming and other recreational activities in contaminated water can make people ill.

The EPA recommends criteria for limiting certain organisms and their associated toxins in water bodies to protect human health. State and tribal governments can use the criteria as guidance when setting their own water quality standards to protect human health.

EPA Recreational Water Quality Criteria and Methods

 Recycled Water

California State Water Resource Control Board Recycled Water Program


ELAP Analyzing Recycled Water

National Pollutant Discharge Elimination System (NPDES)


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