The National Ground Water Association

Fresh Ground Water
Withdrawals and
US Wells




Fresh Ground Water Withdrawals
by End Use


1980 - 1985 - 1990


Millions of Gallons per Day

Use 1980 1985 Percent of Change 1990 Percent of Change
Public Supply 12,000 14,600 21.7% 15,100 3.4%
Domestic Supply 3,300 3,250 -1.5% 3,260 0.3%
Commercial * 746 n/a 908 21.7%
Irrigation 60,000 45,700 -23.8% 51,000 11.6%
Livestock 1,200 3,020 151.7% 2,690 -10.9%
Industrial * 3,930 n/a 3,950 0.5%
Mining * 1,410 n/a 1,210 -14.2%
Thermoelectric Power 1,600 608 -62% 525 -13.7%
TOTAL 88,000 73,300 -16.7% 79,400 8.3%

* = Number listed among "Other" in these years.
Source: U.S. Geological Survey reports on Estimates of Water Use in the United States. Published every 5 years.




Domestic Water Systems from U.S. Manufacturers


1988 to 1995

Commodity Code: 8413810030 Units Dollar Value
Year 1988 57,917 $8,077
Year 1989 54,828 $8,652
Percent of Change -5.3 7.1
Year 1990 65,762 $8,376
Percent of Change 19.9 -3.2
Year 1991 67,013 $7,887
Percent of Change 1.9 -5.8
Year 1992 41,900 $8,685
Percent of Change -37.5 10.1
Year 1993 73,762 $11,262
Percent of Change 76.04 29.7
Year 1994 79,948 $9,432
Percent of Change 8.39 -16.25
Year 1995 81,052 $11,232
Percent of Change 1.38 19.08

Notes: Values in thousands of dollars Source: U.S. Department of Commerce, Schedule B Commodity Reports

Summary:
Total number of wells in place, per categories listed above: 15,767,673
Not listed are the 181 household wells in the District of Columbia.

NOTES:

Irrigation:
Most numbers listed come from the 1994 Farm Ranch Irrigation Survey, U.S. Bureau of the Census. [a] 1995 Irrigation Survey conducted by Irrigation Journal magazine. They are estimates by agricultural extension agents in the state. [b] 1989 Irrigation Survey conducted by Irrigation Journal magazine. They are estimates by agricultural extension agents in the state. [c] 1986 Irrigation Survey, conducted by Irrigation Journal magazine. They are estimates by agricultural extension agents in the state.

Public Supply:
These figures come from a 1983 analysis of the U.S. EPA data base known as the Public Water Supplier Inventory. Records of 232,952 public water suppliers are stored. Throughout the U.S., including tribal lands and possessions (note that we have listed only the 50 states), there are 215,963 public water supply systems using at least some ground water. Some 51,173 systems in the same areas meet EPA's definition of "community" system.

Community Supply:
This is a subset of Public Supply. Community systems are those which U.S. EPA defines as serving "at least 15 service connections used by year-round residents or regularly serves at least 25 year-round residents." Other public water supplies can be found at campgrounds, restaurants, motels, schools, etc., wherever the public may have access to well-supplied water.

Household:
From the 1990 U.S. Census of Housing, these figures represent the number of households served by private individual wells. NGWA assumes the number of households is a one to one ratio to the number of wells.

Other Categories Not Inventoried:
Dewatering, elevator, environmental, fire protection, heating/cooling, industrial/commercial, landscape irrigation, livestock watering, observation, oil/gas exploration water supply, test

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Last Updated November 26, 1997


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