HESC 415 Topic 1 Bottled water Vs. Tap water

Who regulates tap water?

EPA

What did NRDC concluded when examined 103 brand water bottles?

-1/3 of bottled water contained chemicals or bacterial contaminants that exceed industry standards of government regulation for drinking water from tap. - no assurance that bottled water is any safer than tap water

Groundwater purity?

-Cleaner and purer than most water surface - water percolates through the soil and filters out most bacteria, suspends materials and other contaminants that find easy access to river and lakes ex: BRITA

When does federal regulation apply on tap water?

-Only applied when bottled water is transported across state lines - only require to be as good as tap water - most water bottled sold within state lines to avoid regulations -no assurance bottled water is higher quality than tap water

Who regulates bottled water?

FDA

How is groundwater distributed as drinking water?

It usually just pumped from aquifer, disinfected with chlorine and distributed thereafter

Water Vending machines?

Less wholesome than tap water because heterotrophic plate count bacteria (harmless) has greater presence than tap water

who analyzed 279 vending machines?

Los Angeles County Department of Agricultural Commissioner / weights and measures

Who examined 103 brand water bottled?

National Resources Defense Council (NRDC)

Groundwater as drinking water supply?

not typically go through coagulation, sedimentation and filtration steps because naturally filtered in nature - most groundwater is pumped out of the aquifer, disinfected with chlorine, and distributed to residents and commercial building

What is spring water?

underground formation which water flows naturally to the surface of the Earth

What is artesian water?

water from well tapping and confined aquifer in which the level stands at some height above the top of the aquifer