This week is National Drinking Water Week. Since 1988 the American Water Works Association and its members have used Drinking Water Week as an opportunity for both water professionals and the communities they serve to recognize the vital role water plays in our daily lives.
At this point in time the United States has one of the
safest water supplies in the world, but our drinking water is facing new
challenges. Our water treatment and delivery systems are aging and the demand
for water continues to grow with populations in arid and urban areas. In the
arid west reclaimed or recycled water, is being used to recharge groundwater.
In other places waste treatment plants discharge to rivers that supply drinking
water systems. Here in Northern Virginia recycled water from UOSA is released
to the Occoquan. Water recycling and reuse while increasing supply is
introducing a variety of contaminants into our drinking water that water
treatment systems and water regulations may not fully address.
In studies over the last decade the U.S. Geological Survey
found that as the amount of urban and agricultural lands increased within the
water shed, the numbers of contaminants in the rivers also increased. Rivers receiving municipal and
industrial discharge, as well as discharges from other point and non-point
sources from stormwater runoff are impacted by man-made organic contaminants,
most of which are do not have regulatory limits. Trace amounts of pathogens, pharmaceutical
chemicals and other chemicals are able to pass through the current standard
treatment systems. Drinking water standards were developed for natural
groundwater and surface water and may not be adequate to protect us from contaminants
in reclaimed water. We are just developing the technology to test for some of
these substances at the trace levels in which they are found.
The U.S.EPA sets legal limits for over 90 contaminants in
drinking water. The Safe Drinking Water Act (SDWA) allows states to set their
own drinking water standards as long as the standards meet or exceed the EPA
minimum. Water utilities face the increasing challenge of keeping pace with
emerging contaminants and issues such as per- and polyfluoroalkyl substances
(PFAS), inland salinization, lead and copper in drinking water. Water systems
need to monitor and treat water to meet the current regulatory requirements of
the SDWA. In the future additional strategies and treatment will be needed to
meet the challenges of these emerging contaminants.
I believe that Fairfax Water and our other regional water
utilities will be able to meet the challenges facing them, but not all water
systems have the resources to meet the challenges ahead. In more rural
communities and shrinking urban areas that have a small rate-payer base it is a
challenge to have the equipment and staff to meet the requirements of the SDWA
and to maintain aging systems.
Fairfax Water is observing Drinking Water Week by inviting
the public to learn about how truly vital and valuable clean, safe water is in
daily life and its role in protecting public health and the environment now and
in the future. Take the time during this Drinking Water Week to understand some
of what it takes to consistently deliver clean and safe drinking water 24/7.
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