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Classification of Aquifers Systems in U.S. Fuller, 1905 Meinzer, 1923 Thomas, 1952 RASA, 1978 Heath, 1984 Heath, 1988 Hydrogeologic Atlas, 1990s. 21 regions, based on bedrock aquifers. Aquifer Regions in U.S. according to Meizner, 1923. Combined and simplified to 10 regions.

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classification of aquifers systems in u s
Classification of Aquifers Systems in U.S.
  • Fuller, 1905
  • Meinzer, 1923
  • Thomas, 1952
  • RASA, 1978
  • Heath, 1984
  • Heath, 1988
  • Hydrogeologic Atlas, 1990s
slide2

21 regions, based on bedrock aquifers

Aquifer Regions in U.S. according to Meizner, 1923

slide3

Combined and simplified to 10 regions

Aquifer Regions in U.S. according to Thomas, 1952

slide4

28 regions, extensive aquifers that act as single unit, independent aquifers with common characteristics

slide5

Summary of U.S. Water Resources,

Classification based on watersheds

USGS Professional Paper 813

ground water regions heath 1984
Ground Water Regions (Heath, 1984)

1. Component aquifers—unconfined, confined, multiple

2. Porosity—primary, secondary

3. Aquifer composition

4. Storage and Transmission characteristics