September-October 2007

Indoor-Outdoor Savings

Incorporating water efficiency technologies becomes standard practice for master-planned communities throughout the country.

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By Carol Brzozowski

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In order to meet the EPA study requirements, McStain utilizes bathroom faucets that run 1.5 gallons per minute and kitchen faucets at 2.2 gallons per minute. “There was talk about leaving kitchen faucets out of the equation, not thinking they were responsible for as much home water use, but we’re convinced that they are,” says Medanich. “People tend to leave their faucets running in the kitchen as they’re rinsing a pot. If you’re going to reduce that gallons per minute but still get the same effect, it can have a great savings on the water that’s being used in the home.”

The list of available fixtures and fittings that can be used for water efficiency in homes is extensive, says Medanich. In the kitchen are Energy Star dishwashers that use 6.5 gallons per cycle or fewer. McStain Neighborhoods uses all Delta Faucet Co. fixtures that feature aerators for faucet installations in its homes. Medanich credits Delta for being a leader in the production of water-efficient fixtures. In the laundry area, McStain is using horizontal access clothes washers, such as the Whirlpool Duet Sport. The washer saves two-thirds more water than a top-loading machine.

“It’s not like these are hard-to-find items,” he says.

On the outside, McStain utilizes WaterWise landscaping practices, such as xeriscape landscape design, native plants, and low-water consuming plants. “That’s in our design guidelines when we set up our homeowners’ associations,” Medanich says. “We provide them with a list of approved plants for their landscape design. Through that and the use of ‘smart’ irrigation controllers, we can reduce the landscape water consumption by 40%. We have found that landscaping water use consumes at least half of the water on a residential basis. If we can cut that by 40%, we’re seeing huge impacts on water conservation.”

In addition to such landscaping measures, evapotranspiration (ET) units are being utilized to measure out the water. “Some of the ET controllers we’ve used are Web-based. There’s an Internet service that the homeowner has to subscribe to in order to take full advantage of this water-conserving aspect,” says Medanich. “Or they’re also tied to weather satellites. That controller has an antenna on it and receives data on a continual basis from a series of satellites. You have to subscribe to a service in order to take advantage of that. One we use is the WeatherTRAK system and that has its own weather station onsite.”

ET controllers are becoming a more affordable standard option for homeowners, he says. “When we first started using these three years ago, they were $1,000. We can get them retail now for less than $400,” he adds.

The WeatherTRAK system has a controller that lets the operator program crop co-efficients. “You can indicate what you’re growing, what the weather requirements are, what the slope of the ground is, what the soil condition is, and whether it’s clay or sand or silt, it will calculate how much water percolates through it. It also will indicate what the slope is for run-off purposes—a steeper grade has more run-off,” Medanich says.

The outdoor weather station features a built-in rain sensor and also measures temperature and humidity on a 24-hour basis, he adds. “It knows if it rained yesterday and what the temperature was and what the watering requirements are today,” says Medanich.

McStain also works with Colorado State University, which hosts a sod farm where researchers study hybridization of various grass types. “They’ve developed a drought-tolerant bluegrass and a drought-tolerant fescue and blends of the two and we’ll use those sods,” says Medanich.

Another measure McStain Neighborhoods has taken is to have a certified landscape architect do a water budget for a standard lot in an effort to achieve a 40% water-use reduction goal. McStain Neighborhoods also belongs to the LEED program and limits the amount of turf by encouraging hardscaping or patio decks, thus promoting an outside living area. In building its “green homes,” McStain does not utilize standard mark-ups for its standard options. “We promote these upgrades,” says Medanich. “We do a different mark-up on these green initiatives. We charge less than we would just to promote the use of them.”

Addressing why water-efficient building practices are more the exception than the rule, Medanich replies: “Water is too cheap. I had this very conversation with our water board. We were in a seven-year-long drought and had mandatory water restrictions. People conserved because they had to and the water board lost all kinds of money. So this becomes an economic decision. They have to raise rates in order to compensate for conservation. As bad as that sounds, it’s the truth.”

When Medanich came to the West from the East 14 years ago, he was told the biggest limiting factor to growth in the West was water. “It has been for years and will continue to be. There’s only so much water,” he says. “A municipality can only provide only so many water taps. If a builder says because of our conservation steps we’re going to cut in half the amount of water the normal residence uses, now they’ve got twice as many taps as they can sell. That generates income for the community.”

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While builders such as McStain are ahead of the process, Medanich predicts a time in the not-too-distant future where such measures will be mandatory.

“Water use, water allotment, water conservation: These are going to be things we’re all going to learn to live with, and the sooner we get onboard, the better.”

Author's Bio: Journalist Carol Brzozowski lives in Coral Springs, FL.

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