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b. The designer must evaluate the possibility of eliminating permanent irrigation
systems through the use of plant materials that are appropriate for the site's climate and
soils as described in TM 5-803-13. If plant materials with supplemental water
requirements are desired, limit their use to a defined area and utilize efficient drip
irrigation systems. The designer should evaluate potential for rainwater retention or
graywater recycling as described in TM 5-803-14. Analysis using LCCA is required if
systems were identified during the planning phase. Ideal applications are regions with
limited water availability and where some landscape irrigation is desirable.
c. Since graywater reclamation and wastewater treatment facilities require
regulatory authority approval, initiate the permitting process as soon as the requirement
is known. Identify the personnel who will operate and maintain the treatment system
and obtain their input before selecting a system. Evaluate potential for cost-effective
mechanical or biological on-site wastewater treatment of wastewater or runoff from
paved areas. Analysis using LCCA is required if these systems were identified during
the Planning Phase. Ideal applications for wastewater include facilities with high water
use requirements and localities where water treatment is limited and/or costly. Ensure
that facility siting is in accordance with the wellhead protection plan of the installation.
Develop water-conserving criteria for plumbing fixtures.
d. At a minimum, the designer must use low-flow fixtures as described in CEGS
15400, Plumbing, General Purpose, and CEGS 15405, Plumbing, Hospital. Evaluate
requirements for National Pollution Discharge Elimination System (NPDES) permitting,
resulting from facility operations or construction. Facilities and surrounding area should
minimize potential for storm water runoff and resulting erosion.
11. Resource-Efficient Materials In Design and Construction
a. The designer must incorporate Sustainable Design by investigating the
(1.) Consider the total life-cycle costs and environmental impact of products and
materials rather than just their initial price. Use durable products and materials. Select
materials with low embodied energy.
(2.) Avoid environmentally harmful materials, i.e., those containing ozone-depleting
chemicals or releasing gaseous pollutants, toxins, etc. Also avoid utilizing excessive
packaging, where possible.
(3.) Buy locally produced materials to minimize the impact of transporting them.
(4.) Reuse salvaged materials, or use products made from recycled materials.
Select materials that can be recycled at the end of their use.