World Health Organization

http://www.who.int/

Water Sanitation and Health (WSH)

http://www.who.int/water_sanitation_health/dwq/en/

Healthcare waste management (HCWM)

http://www.healthcarewaste.org/en/115_overview.html

U. S. Environmental Protection Agency

http://www.epa.gov/

Groundwater and Drinking Water

http://www.epa.gov/safewater/

Wastes

http://www.epa.gov/epaoswer/osw/index.htm

Test Methods (EPA)

http://www.epa.gov/osa/fem/methcollectns.htm

Federal Regulations (EPA)

http://www.gpoaccess.gov/cfr/index.html

Presidency of Meteorology and Environment (Saudi Arabia)

http://www.pme.gov.sa/today.asp

General Environmental Regulation – Kingdom of Saudi Arabia

http://www.pme.gov.sa/EnvERules.pdf