Sanitary Sewers
Underground pipes that carry
off only domestic or industrial waste, but
not storm water.
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Sanitary Survey
An on-site review of the water
sources, facilities, equipment, operation
and maintenance of a public water system
to evaluate the adequacy of those elements
for producing and distributing safe drinking
water.
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Sanitary Water
Water discharged from sinks,
showers, kitchens or other nonindustrial
operations, but not from commodes. Also
referred to as "gray water."
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Scientific Certification Systems (SCS)
An independent testing and certification
organization who evaluates a wide variety of food
safety and environmental claims. The company's
environmental division certifies a wide variety of
claims related to environmental achievement in
the product manufacturing and natural resource
extraction sectors. Specific product attributes,
such as recycled content and biodegradability,
may be certified under the environmental claims
certification program. SCS can also certify more
holistic claims of environmental preferability
considering the full product life-cycle.
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Sick Building Syndrome
A building whose occupants experience acute
health and/or comfort affects that appear
to be linked to time spent therein, but where
no specific illness or cause can be identified.
Complaints may be localized in a particular
room or zone, or may spread throughout the
building and may abate on leaving the building.
Also see "Building-related
Illness."
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Source Reduction
- The design, manufacture, purchase or use of materials
to reduce the amount or toxicity of waste
in an effort to reduce pollution and conserve
resources (i.e., reusing items, minimizing
the use of products containing hazardous compounds,
extending the useful life of a product and
reducing unneeded packaging).
- Practices that reduce the amount of any
hazardous substance, pollutant or contaminant
entering any waste stream or otherwise being
released into the environment. Such practices
also reduce the risk to public health and
the environment associated with such releases.
Term includes equipment or technology modifications,
substitution of raw materials, and improvements
in housekeeping, maintenance, training or
inventory control.
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Stack Effect
Flow of air resulting
from warm air rising, creating a positive
pressure area at the top of a building and
negative pressure area at the bottom. This
effect can overpower the mechanical system
and disrupt building ventilation and air circulation.
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Sterilizer
One of three groups
of antimicrobials registered by the EPA for
public health uses. The EPA considers an antimicrobial
to be a sterilizer when it destroys or eliminates
all forms of bacteria, viruses, and fungi
and their spores. Because spores are considered
the most difficult form of microorganism to
destroy, the EPA considers the term "sporicide"
to be synonymous with "sterilizer."
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Sulfur Dioxide
(SO2 ):
A heavy, smelly
gas that can be condensed into a clear liquid;
used to make sulfuric acid, bleaching agents,
preservatives and refrigerants; a major source
of air pollution in industrial areas.
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Sustainability
Practices that
would ensure the continued viability of a
product or practice well into the future.
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Sustainable
Development
An approach to
progress that meets the needs of the present
without compromising the ability of future
generations to meet their needs.
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