The Billing History Shows How the Water Flows in this Old House

An analysis of 14 years of water bills for this house shows some interesting results. The big surprise is in its surprising consistency.

For various reasons, the 14-year period of study includes residency of a wide variety of people, from hard-core eco-conscious to careless energy hogs and from traveler to homebodies. The house has also been home to a broad range of total number of residents. At times the house has had as few as two residents. At other unusual times as many as eight. Most typically, the house has been home to three or four people, or an average 3.5 people.

Water use has been plotted by both total household use, and per person. While there is quite a range of water use patterns, overall there is surprisingly little variation of water throughout the year. There is not an obvious seasonal pattern overall. The few aberrations represent toilet water leaks, or unusual outdoor gardening projects.
water use total for household

If we throw out the aberrations, the 14-year average of household water use is 11.39 CCF (hundreds of cubic feet) every two months or 4,262 gallons each month.
water use per person

The individual water use on average for the same period is 3.36 CCF every cycle, or 1,368 gallons a month.

Water is coming to be recognized as a precious resource. It’s price from the City is beginning to reflect its value, and the cost will almost certainly continue to rise. All this data on water use is helpful for moving forward toward water conservation as we green this bungalow.


Water and Sustainability: The New-Old Idea of Rainwater Harvesting

Americans have come to take for granted the abundant clean water which so conveniently pours out from our faucets. Drinking water seems so abundant here we often let it just run down the drain unused without even giving it a second thought.  In developing countries people are sometimes painfully aware of how important and valuable water is.

Seattle-ites get pretty tired of the rain sometimes. How could wet rainy Seattle ever have a water shortage?  The fact is there have been many water shortages during the summer months when demand for water is higher and rain is rare.  Since the droughts of the 1980’s water use restrictions and new tiered water rates have encouraged a change in how we all use water.  The most noticeable difference in Seattle is that it has become socially acceptable to let your lawn turn brown during the dry summer months. Those who still keep their lawn green may pay almost 3 times as much for each extra gallon of water!

The newest culture change for water conservation is the advent of the rain barrel.  Across the country, cities are doing pilot programs for encouraging rainwater harvesting using rain barrels.  The idea is for people to collect rain water from roof downspouts and use it for watering their outdoor plants to relieve some of the strain on municipal water supplies.  City employees wondered whether people would go for it.  The surprise has been how popular the programs have been!

Rainwater harvesting in Seattle

Industrial-strength cisterns store rain water for use by gardeners at a community garden in Seattle

There’s nothing new about rain barrels.  Rain barrel technology is as old as barrel technology, although there have been some minor refinements with newer matterials. Ultimately it’s a new/old idea that is catching on because of a new awareness of how valuable water really is.

wooden barrels being used as rain barrels

Wooden rain barrels and wooden downspouts in historic St. Charles, Missouri