Category

Types of contaminants

Source of contamination

Residential

Air pollution

Septic tank

Household waste water

Sewer network

Household waste

Fuel oil

Furniture stripping/refinishing

Paints

Municipal

Municipal sludge spreading in land

Air pollution

Salt for street de-icing

Streets and packing lots

Municipal incinerators

Municipal landfills

Sewer lines

Road maintenance depot

Wastewater treatment plants effluents

Commercial

Airports

Metal plating

Construction areas

Medical institutions

Car washes

Research laboratories

Cemeteries

Rail road tracks

Dry cleaners

Laundromats

Gas stations

Scap/junk yards

Golf courses

Recycling facilities

Industrial

Chemical industry/storage

Metal fabricators

Electronics manufacture

Petroleum production

Mining and mine drainage

Pipelines

Metal working shops

Storage tanks

Toxic/hazardous spills

Wells

Agriculture

Animal feeds

Fertilizer storage/use

Irrigation sites

Manure spreading areas

Sludge reuse

Chemical spills

Live stocks waste

Pesticides

Tanks

Wells