Water Pollutants

Clean Water Act (CWA)

Safe Drinking Water Act (SDWA)

National Environmental Policy Act (NEPA)

Oil Pollution Act

natural processes

animal waste

human activities

acid rain

runoff of excessive fertilizer and nutrients

cleaning up waterways

using nuclear energy

using solar energy

the kind of biological agents causing the pollution.

whether the source of pollution is agricultural or industrial.

the number of sources from which the pollution is discharged.

whether the pollutants are chemical or physical agents.

organic chemicals

inorganic chemicals

heavy metals

physical agents

the location of underground storage tanks is not always known.

pollutants cling to the materials that make up aquifers.

runoff contaminates the water supply.

oil spills.

direct dumping of wastewater.

activities on land.

All of the above.

Point source

nonpoint source

wastewater

water pollution

Lead

Sodium

Calcium

Potassium

Industrial discharge

Agricultural runoff

Household waste

Natural springs