To limit NPS pollution
from paved surfaces households can substitute alternatives to areas traditionally
covered by nonporous surfaces. Grasses and natural ground cover, for example,
can be attractive and practical substitutes for asphalt driveways, walkways,
and patios. Some homes effectively incorporate a system of natural grasses,
trees, and mulch to limit continuous impervious surface area. Wooden decks,
gravel or brick paths, and rock gardens keep the natural ground cover intact
and allow rainwater to slowly seep into the ground.
Landscape With Nature
Xeriscape landscaping
provides households with a framework that can dramatically reduce the potential
for NPS pollution. Xeriscape incorporates many environmental
factors into landscape design-soil type, use of native plants, practical
turf areas, proper irrigation, mulches, and appropriate maintenance schedules.
By using native plants that are well suited to a regions climate and pests,
xeriscape drastically reduces the need for irrigation and chemical applications.
Less irrigation results in less runoff, while less chemical application
keeps runoff clean.
Proper Septic System Management
Septic systems must be
built in the right place. Trampling ground above the system compacts soil
and can cause the systems pipes to collapse. Also, septic systems should
be located away from trees because tree roots can crack pipes or obstruct
the flow of wastewater through drain lines. Proper septic system management
is also important, and a system should be inspected and emptied every 3
to 5 years.
By maintaining water
fixtures and by purchasing water efficient shower heads, faucets, and toilets,
households can limit wastewater levels, reducing the likelihood of septic
system overflow. Most water conservation technologies provide long-term
economic and environmental benefits.
Proper Chemical Use, Storage, and Disposal
On household lawns and
gardens, homeowners can try natural alternatives to chemical fertilizers
and pesticides and apply no more than the recommended amounts. Natural
predators like insects and bats, composting, and use of native plants can
reduce or entirely negate the need for chemicals. Xeriscape can limit chemical
applications to lawns and gardens.
If chemicals are needed
around the home, they should be stored properly to prevent leaks and access
by children. Most cities have designated sites for the proper disposal
of used chemicals.
From
EPA
Pointer
No. 10
EPA841-F-96-004J