status and trends in water use in the southeastern united states alabama awra october 12, 2005 susan...
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Status and trends in water use in the southeastern United States
Alabama AWRAOctober 12, 2005
Susan S. Hutson USGS
University of Memphis Hsiang-Te Kung, Ph.D. ProfessorEsra Ozdenerol, Ph.D. Asst. Prof.Jungyul Sohn, Ph.D, Asst. Prof.
Southeastern United StatesTotal water withdrawals by source
0
10
20
30
40
50
60
70
1960 1970 1980 1990 2000
ground surface total
Water withdrawals by quality of water 1960 to 2000
0
10
20
30
40
50
60
70
1960 1970 1980 1990 2000
saline fresh
How water is used in the Southeast
0 10 20 30 40 50
1960
1970
1980
1990
2000
non-power thermoelectric power
Water availability, water use, and
demographic and socioeconomic indicators
Thermoelectric power sector Hydro and thermo power accounted for
67 percent of electricity generated by TVA in 2000
The importance is greater than the income from the power sales
Electricity served as a base for the economy of the region that was valued at $246b for goods and services
Total water withdrawals excluding thermoelectric power 1960 to 2000
0
0.5
1
1.5
2
2.5
3
3.5
1960 1970 1980 1990 2000
Alabama Georgia
Total water withdrawals excluding thermoelectric power 1960 to 2000
0123456789
10
1960 1970 1980 1990 2000
I rrigation Public supply s-s industry
SE public supply WU 1960-2000
Increased PS withdrawals 230% Increased population 89 % Increase population served 134 % Increased gross per capita use
1960 137 gallons per person per day 2000 174 gallons per person per day
Effect of changing demographics on public-supply withdrawals
0
0.5
1
1.5
2
2.5
1960 1970 1980 1990 2000
Alabama Georgia Florida
Demographics and water use2000 Census
Ranked by population size FL 4 GA 10 NC 11 VA 12 TN 16 AL 23 KY 25 SC 26 MS 31
Demographics and water use2025 projections
Total net increase SE 17.5 million
Largest projected net increase CA 1 17.7 million TX 2 8.5 FL 3 6.5 GA 4 2.7 NC 7 2.2 VA 8 1.8 TN 13 1.4
Population projections:States, 1995-2025 U.S. Census Bureau
Fastest-growing population by % CA 1 56% FL 9 46% GA 15 37% NC 16 30% VA 18 28% TN 19 27% SC 20 26% U.S. 28%
Demographics and public-supply water useU.S. Census Bureau
In 1950, the U.S. population became predominantly metropolitan and became increasingly metropolitan in each subsequent decade
This increasingly concentrated population received its drinking water from public supplies. Population served by public supplies expanded, increasing from 58 to 81 percent of the population.
Demographics and public-supply water useU.S. Census Bureau
Since 1990, more than half of the U.S. population has lived in metropolitan areas of at least 1 million people.
In 2002, public supply systems serving more than 100,000 people served more than 30 percent of the population
Demographics and public-supply water useU.S. Census Bureau
Most of the growth occurred in the suburbs, with little change in the percentage of population living in central cities.
As a result systems expanded lines to meet the new demand or to meet the demand for publicly supplied instead of self-supplied drinking water.
Demographic implications for Public Supply Increased demand in large areas of
concentrated population may strain local water availability Hydrology--more distant source alternatives Legal--question of who has a right to the more
distant sources
Increased cost/rates by the larger systems to meet more stringent USEPA requirements Engineering--granulated activated carbon
filtration
Changing face of industrial water use in the Southeast
Traditional manufacturing—large users of self-supplied water Chemicals Pulp and paper Primary metals Food processing
Changing face of industrial water use in the Southeast Modern
manufacturing—modest users of publicly-supplied water Transportation
equipment Computer &
electronic products Machinery
manufacture
Status of data collectionIndustrial water use USGS
Data model for 2000 Self-supplied withdrawals only emphasized the impact on the water
resource--withdrawals
Data model from 1960 to 1995 Self-supplied withdrawals Publicly- supplied deliveries
Industrial water use
01000
20003000400050006000700080009000
10000
1960 1970 1980 1990 2000
withdrawalsdeliveries
SummaryIndustrial freshwater use 1995
AL FL GA KY MS NC SC TN VA% self 77 77 77 66 94 66 94 87 96
self 733 345 633 347 290 369 700 863 583
public 213 103 194 197 20 193 44 130 88
Manufacturing and industrial water use
Manufacturing employees 2000
SE 3.8m
MI&OH 1.9m
2005 SE
3.1m MI&OH 1.5m
Manufacturing firms SE 69,241 MI & OH 34,257
Industrial water use--Southeast
State Manu contribution to real GSP growth in %
Motor vehicles contribution to real growth in manufacturing in %
AL 16 9.1
FL 5 10.8
GA 14 13.3
KY 21 14.4
MS 16 14.5
NC 22 13.2
SC 19 21.9
TN 17 13.8
VA 12 7.5
s-s industrial water use-2000 GeorgiaIndustry gw Mgal/d sw Mgal/d Percent of total Contribution to
real 1992-2000 GSP
Mining 8.02 2.05 1.2 4
Food 9.94 6.07 2.4 5.2
Textiles 10.32 15.18 4.0 2.0
Paper 122.56 296.79 64 0.7
Chemicals 84.55 37.58 19 6.3
Petroleum .31 0 >1 10.3
Rubber 1.47 0 >1 10.8
Stone, clay 53.06 6.14 9 4.0
Primary metals
.79 0 >1 2.1
Elec mach 16.2
Industrial growth and water use in the southeastern region
Status of USGS water-use data collection Site-specific data
Self-supplied industrial Thermoelectric power public supply
Not public supply deliveries
Benefits of the data
Framing the inevitable question
Will there be sufficient water resources to sustain economic growth and the quality of life?