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Method for Estimating
Water Use and Interbasin Transfers of Freshwater and Wastewater in an
Urbanized Basin
U.S. Geological Survey WRIR-99-4287
by M.A. Horne |
ABSTRACT
Techniques for management of drainage basins that use water budgets to
balance available water resources with actual or anticipated water use
require accurate and precise estimates of basin withdrawals, interbasin
transfers of freshwater, unaccounted-for use, water use, consumptive use, inflow and infiltration, basin return flow, and interbasin transfers of
wastewater. Frequently, interbasin transfers of freshwater and wastewater are not included in basin water budgets because they occur within public
water-delivery and wastewater-collection systems. A new 10-step method was developed to improve estimates of inflow and infiltration and interbasin
transfers using readily available statewide data. The accuracy and
precision of water-use estimates determined by this method are improved
through careful application of coefficients for small users and the use of metered values for large users. The method was developed and tested with
data for the Ten Mile River Basin in southeastern Massachusetts. This
report uses examples from the basin to illustrate each step of the method.
CONTENTS
Abstract
Introduction
Purpose and Scope
Acknowledgments
Description of Study Area
Minor Civil Division
Subbasins
Method of Estimating Water Use and Interbasin Transfer
Identify and Obtain Required Data
Organize and Manage Data
Estimate Subbasin Populations
Analyze Data on Public Water System Withdrawals
Analyze Data on Public Wastewater System Return Flow
Identify Major Water Users and Determine Rates of Water Use
Estimate Areal Extent and Rates of Use for Minor Water Users
Estimate Areal Extent and Rates of Public
Water-System Deliveries and Self-Supplied Withdrawals
Estimate Areal Extent and Rates of Public Wastewater-System Collection and Self-Disposed Return Flow
Integrate Estimated Water-Use Data into Subbasin Summaries
Summary and Conclusions
Selected
References
Glossary
FIGURES
- Flow chart showing relations among water-use processes
2, 3. Maps showing
- Location of the five subbasins of the Ten Mile River Basin, southeastern Massachusetts
- Land use in the five subbasins of the Ten Mile River Basin
- Flow chart showing general approach for estimating basin water use and interbasin transfers
5-7. Diagrams illustrating:
- Combined coverages for areal extent of public water-system distribution, population,land use, and subbasin boundaries in two subbasins of the Ten Mile River Basin
- Public water-system wells, distribution lines, and subbasin boundaries in the Attleboro portion of the Seven Mile River, Ten Mile River, and Bungay River subbasins of the Ten Mile River Basin
- Public wastewater-system treatment plants, outfalls,collection lines, and subbasin boundaries in the Attleboro and Seekonk portion of the Seven Mile River and Ten Mile River subbasins of the Ten Mile River Basin
- Flow chart showing basin water-use and interbasin transfer of freshwater
and wastewater in the Ten Mile River Basin, 1992
TABLES
- Area and population in the five subbasins of the Ten Mile River Basin
and adjacent areas southeastern Massachusetts, 1990
- Summary of data and data sources
- Population of subbasins in the Ten Mile River Basin estimated by
direct areal proportion and by use of housing-unit density
- Total population and population served by public water systems and
public wastewater systems by Minor Civil Divisions in the five subbasins
of the Ten Mile River Basin, 1990
- Distribution systems and withdrawals by public water systems
in the five subbasins of the Ten Mile River Basin and
adjacent areas, 1992
- Collection systems and return flow from public wastewater
systems in the five subbasins of the Ten Mile River Basin
and adjacent areas, 1992
- Availability of types of data on major water user
- Coefficients for estimating commercial and industrial use
from two-digit Standard Industrial classification code
categories and number of employees
- Number of employees per two-digit Standard Industrial
Classification code category and number employed by major users for seven Minor Civil Divisions in
southeastern Massachusetts, 1992-95
- Water use per two-digit Standard Industrial Classification code category and by major users for seven Minor Civil Divisions in southeastern Massachusetts, 1992-95
- Commercial and industrial land-use area as a percentage of total
land area per Minor Civil Divisio for that use category in the five
subbasins of the Ten Mile River Basin
- Water use by major and aggregated minor users in the five subbasins
of the Ten Mile River Basin, 1992
- Summary of water use as supplied by public water-system deliveries and
self-supplied withdrawals in the five subbasins of the Ten Mile River
Basin, 1992
- Comparison between public water-system deliveries estimated through methods
described in report with those reported to the Massachusetts
Department of Environmental Protection for seven Minor Civil
Divisions in 1992
- Summary of public wastewater-system collection and self-disposed
return flow in the five subbasins of the Ten Mile River Basin, 1992
- Method for estimating inflow and infiltration in Attleboro and North
Attleborough in the Ten Mile River Basin
- Summary of withdrawals, use, inflow and infiltration, wastewater returns,
and resource gains or losses in the five subbasins of the
Ten Mile River Basin, 1992
- Interbasin transfer of wastewater and inflow and infiltration in the Ten Mile River Basin, 1992
AVAILABILITY
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Title
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Contents
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Report
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