Gray Matters: Analysis of Gray Water Use in a Typical Central Montana Household
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Authors
Hecht, Courtney
Advisor
Gary Fischer
John Scharf
Murphy Fox
John Scharf
Murphy Fox
Editor
Date of Issue
2009-04-01
Subject Keywords
gray water, water conservation, Montana
Publisher
Citation
Series/Report No.
item.page.identifier
Title
Gray Matters: Analysis of Gray Water Use in a Typical Central Montana Household
Other Titles
Type
thesis
Description
Abstract
The semi-arid western United States views water as a valuable commodity. Because of water’s expense and difficulty to obtain, western states struggle with water supply, use, and rights issues. The existing supply may not support an increasing population. Since the battle for freshwater is on-going, a special conservation method is being used by some states. Four different states have adopted laws allowing gray water irrigation, and as a result have been able to mitigate some of their water issues. Montana is now exploring this possibility. In April 2007, the state legislature passed a bill permitting the regulated use of gray water. From the resulting statute, the Montana Department of Environmental Quality (DEQ) has been designated to develop, adopt, administer, and enforce administrative rules for gray water use. The rules are currently under review pending their final approval. Under these rules, each household can use at least forty gallons of gray water per person per day during the months April through October. While this is a positive step in water conservation, the economic feasibility needs to be determined. This study investigates the financial costs and/or savings that could result from implementing a gray water system for a residential use in Lewistown, Montana. This document shows findings from efforts to measure gray water volumes and to obtain cost estimates for home water system modifications. The intent of this study is to provide baseline information pertaining to the feasibility of gray water use in a Montana residence.
Sponsors
Degree Awarded
Bachelor's
Semester
Spring
Department
Mathematics, Engineering & Computer Science