Why You Should Consider Purifying
Your Drinking Water
Congress
recently amended the Safe Drinking Water Act to include a
right-to-know provision. By late 1998, water suppliers will
be required to notify you you about microbes, pesticides,
and other contaminants detected in tap water.
Is this legislation designed to protect us from contaminated
water or to remove liability from the water suppliers? Considering
the following facts, the latter may be the case.
During 1991 and 1992,
EPA records showed over 250,000 violations of the Safe Drinking
Water Act. In Milwaukee in 1993, cryptosporidium caused the
largest recorded outbreak of a waterborne disease in U.S.
history. An estimated 400,000 people fell ill, 41,000 were
treated for abdominal cramps and diarrhea and more than 4,000
were hospitalized. The epidemic has now claimed 104 lives,
making it the single largest recorded medical disaster in
Milwaukee's history. Cryptosporidium is immune to standard
chlorine purification treatment.
A study by the U.S. Council of Environmental Quality showed
that the cancer risk among those drinking chlorinated water
is 93% higher than among those whose water is not chlorinated.
Information released by the EPA in 1993 documented that at
least 42 states exceeded the legal limits for lead in drinking
water, and that some states did not even perform the mandated
testing.
A study by the Natural Resources Defense Council from 1993
states that THMs (chlorine byproducts) are associated with
more than 10,000 bladder and rectal cancers per year, which
is about 30 cancers per day. About 63,000 chemical compounds
are commonly used in America, and another 1,000 or so are
being synthesized every day.
What contaminants are in our water and where do they
come from? Bacteria, viruses, and protozoa contaminate
ground and surface water through animal feed lot runoff, human
sewage, and septic tank overflow.
E.coli can reach tap water if municipal treatment is inadequate,
as it did in New York City and Washington D.C. in 1995. Waterborne
parasites like Cryptosporidium and Giardia are not killed
by chlorine.
Pesticides - atrazine, a suspected carcinogen, as well as
chlordane, xylene, and phenol can enter ground water through
agricultural runoff.
Radon gas, from naturally decaying radium, can cause water
to be radioactive. Trihalomethanes (chlorine byproducts) may
cause birth defects and are associated with bladder, rectal,
and pancreatic cancer.
Concrete water mains bringing water to your home may contain
asbestos, which may leach into the water. Lead can leach out
of service lines and the solder in the pipes in your home.
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