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Principal Aquifers

North AmericaPhysical Environment

Locations of various aquifers in North America, including consolidated rock aquifers, which are made up of mostly volcanic rocks in the Northwest and mostly sandstone and limestone elsewhere; combination aquifers, which are sand and gravel aquifers overlying productive rock aquifers; and productive aquifers, which have a 0.4 liter/second potential

Geosystems: Intro to Physical Geography

A map highlights the principal aquifers across North America, categorized into three types.

Consolidated rock aquifers, shaded in green, are predominantly found in northern Canada, including regions like Yukon, Northwest Territories, and Nunavut, and extending into parts of British Columbia, Alberta, Saskatchewan, Manitoba, and Newfoundland and Labrador. Also found in the northern Canada regions like Victoria Island, Parry Island, Canadian Arctic Archipelago, and Ellesmere Island, also extending to Southern regions like Winnipeg, Ottawa, and Halifax. Combination aquifers, shaded in orange, are primarily located in the central and eastern United States, covering areas in states like Texas, Oklahoma, Kansas, Nebraska, and South Dakota, and extending to parts of the Midwest, Northeast, and Southeast, including New York, Pennsylvania, and Florida. Productive aquifers, also shaded in light green, are found in regions of Florida and across the western United States near Oregon.

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Display by:	Principal Aquifers			Sea-Surface Temperature Anomalies: El Niño					U.S. Presidential Election by State: Electoral Votes, 2004
	Consolidated rock aquifers	Combination aquifers	Productive aquifers	-0.25 to 0.25	0.75 to 1.0	1.0 to 1.25	1.25 to 1.5	1.5 to 1.75	Value
Yukon			83.0%
Northwest Territories			37.6%
Saskatchewan			11.0%
Alberta			6.33%
Québec			1.02%
Manitoba			2.62%
Ontario			5.05%
Nunavut			2.51%	0.352%
Nova Scotia			29.2%	0.847%
Prince Edward Island			77.5%	1.25%		0.264%
New Brunswick			50.2%	0.522%
British Columbia			59.8%	0.126%
Newfoundland and Labrador			5.25%	0.392%
Alabama	4.32%								Bush (R)
Alaska				0.318%					Bush (R)
Arizona	5.15%								Bush (R)
Arkansas	15.9%								Bush (R)
California	4.23%	1.35%		0.110%					Kerry (D)
Colorado	2.33%	2.58%							Bush (R)
Connecticut	2.14%								Kerry (D)
Delaware	98.6%			0.762%					Kerry (D)
District of Columbia	55.6%								Kerry (D)
Florida	25.3%	1.48%		0.596%					Bush (R)
Georgia	2.57%	17.9%							Bush (R)
Hawaii				1.74%	1.20%	0.113%	0.444%	2.10%	Kerry (D)
Idaho	1.85%	6.13%							Bush (R)
Illinois	33.0%	3.68%							Kerry (D)
Indiana	11.6%								Bush (R)
Iowa	2.05%								Bush (R)
Kansas	1.62%	5.11%							Bush (R)
Kentucky	8.30%								Bush (R)
Louisiana	98.6%			0.184%					Bush (R)
Maine				0.133%					Kerry (D)
Maryland	34.3%			0.874%					Kerry (D)
Massachusetts				1.78%					Kerry (D)
Michigan	16.1%	16.3%							Kerry (D)
Minnesota	2.27%	3.62%							Kerry (D)
Mississippi	99.6%								Bush (R)
Missouri	56.4%								Bush (R)
Montana	1.34%								Bush (R)
Nebraska	75.9%								Bush (R)
Nevada	1.63%	2.87%							Bush (R)
New Hampshire									Kerry (D)
New Jersey	58.8%			0.329%					Kerry (D)
New Mexico	4.90%	2.15%							Bush (R)
New York	3.15%			0.105%					Kerry (D)
North Carolina	7.59%			0.319%					Bush (R)
North Dakota	3.00%	6.69%							Bush (R)
Ohio	15.0%								Bush (R)
Oklahoma	1.97%	2.69%							Bush (R)
Oregon	1.21%	1.53%							Kerry (D)
Pennsylvania	11.6%								Kerry (D)
Rhode Island				4.64%					Kerry (D)
South Carolina	30.0%	2.54%							Bush (R)
South Dakota	10.3%	6.62%							Bush (R)
Tennessee	17.6%								Bush (R)
Texas	27.0%			0.183%					Bush (R)
Utah	2.03%								Bush (R)
Vermont									Kerry (D)
Virginia	8.27%			0.126%					Bush (R)
Washington	1.17%			0.513%					Kerry (D)
West Virginia	1.96%								Bush (R)
Wisconsin	12.5%	1.43%							Kerry (D)
Wyoming	3.58%								Bush (R)

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