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<br />Introduction
<br />
<br />Water Wise
<br />Model Home
<br />Criteria
<br />
<br />Water Wise Model Home Criteria
<br />
<br />EXTERIOR:
<br />1, Meets Xeric Principles of design:
<br />a, Plan use areas, consider slopes (terrace, use shrubs/perennials,
<br />no turf) and narrow strips (mulch, shrubs/perennials, no turf)
<br />b, Locate plants with similar water needs together
<br />c, Efficient irrigation technologies
<br />d, Use organic mulch to hold moisture in soil
<br />e, Prepare soil (4 cubic yards/1 ,000 square feet, tilled 6" deep)
<br />2, Plant Material
<br />a, No more than 3,000 square foot of high water use turf
<br />b, Plant materials appropriate for semi-arid climate, including native
<br />and drought tolerant/resistant varieties
<br />c, Maintain high percentage of living materials in landscaped area
<br />(75-800/0 )
<br />3, Irrigation
<br />a, No overhead irrigation
<br />b, Real Time Evapotranspiration Based Irrigation Controllers
<br />c, Hydro-zoning
<br />d, Irrigation audit prior to approval, ensuring meets minimum
<br />750/0 efficiency
<br />4, Education
<br />a, Builder shall supply homebuyer with Water-Wise educational in-
<br />formation, including landscape maintenance and irrigation system/
<br />controller operation
<br />
<br />INTERIOR*:
<br />1, Ultra low volume toilets
<br />2, Ultra low volume clothes washers
<br />3, Ultra low volume dishwashers
<br />
<br />Projected Water Savings
<br />
<br />Home Type Regular Home Water Wise Water Wise
<br /> (250/0 Savings) (500/0 Savings)
<br />Interior 60,000 48,000 gal/yr 36,000 gal/yr
<br /> g a I/y r
<br />Exterior 119,739 gal/yr 86,804 gal/yr 53,869 gal/yr
<br />Use
<br />Total 179,739 gal/yr 134,804 gal/yr 89,869 gal/yr
<br /> 0,55 ac, ft./yr 0,41 ac, ft./yr 0,275 ac,ft./yr
<br />
<br />Note: Hot water recirculating systems and tankless hot water hearers were
<br />evaluated, but not included in these criteria, as studies are unclear on whether
<br />these systems actually provide water savings.
<br />
<br />Town of Castle Rock Water Conservation Master Plan
<br />
<br />Page 1-6
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