WE Credit 2: Innovative Wastewater Technologies
1 Point
Intent
Reduce generation of wastewater and potable water demand, while
increasing the local aquifer recharge.
Requirements
OPTION 1
Reduce potable water use for building sewage conveyance by 50%
through the use of water-conserving fixtures
(water closets, urinals) or non-potable water (captured rainwater,
recycled greywater, and on-site or municipally
treated wastewater).
OR
OPTION 2
Treat 50% of wastewater on-site to tertiary standards. Treated water
must be infiltrated or used on-site.
Potential Technologies & Strategies
Specify high-efficiency fixtures and dry fixtures such as composting
toilet systems and non-water using urinals to
reduce wastewater volumes. Consider reusing stormwater or greywater
for sewage conveyance or on-site wastewater
treatment systems (mechanical and/or natural). Options for on-site
wastewater treatment include packaged
biological nutrient removal systems, constructed wetlands, and
high-efficiency filtration systems.
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