Scientific Investigations Report 2006–5290

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5290

Back to Table of Contents

Table 2. Principal aquifers, primary lithology of the aquifers, well-sampling networks within each study unit, and the total number of wells sampled during water years 1993–2004.

[Study unit: ACAD, Acadian; ACFB, Apalachicola-Chattahoochee-Flint; ALBE, Albemarle-Pamlico; CCYK, Central Columbia Plateau-Yakima; CONN, Connecticut; DELR, Delaware; GAFL, Georgia-Florida; HPGW, High Plains; KANA, Kanawha; LERI, Lake Erie; LSUS, Lower Susquehanna; MOBL, Mobile; NVBR, Nevada basin and range; OZRK, Ozark Plateaus; PODL, Potomac-DelMarva; PUGT, Puget Sound basin; REDN, Red River of the North; SANJ, San Joaquin; SANT, Santee; SPLT, South Platte; TENN, lower and upper Tennessee; TRIN, Trinity; UCOL, upper Colorado; USNK, Upper Snake River; WHMI, White-Miami; WMIC, Western Lake Michigan; YELL, Yellowstone. Study networks: MAS, major aquifer study; SUS, study unit survey (during Cycle I; equivalent to Cycle II MAS); SWQA, source-water quality assessment; LUS, land-use study; CR, cropland; AG, agriculture; UR, urban; RS, residential; RC, new residential/commercial; MI, mining; REF, reference; FPS, flow-path study. Lower case letters and numbers following study network indicate study unit or NAWQA network coding]

Principal aquifers Primary lithology Study unit Study networks Number of
wells sampled
Data collection years
(water year)
Columbia Plateau Volcanic (basalt sand and gravel interbeds) CCYK MAS-1b, SWQA 44 2002, 2003
Snake River Plain Volcanic (basalt sand and gravel interbeds) USNK MAS-1, MAS-2, LUSCR-1 82 1993, 1994, 1996
Floridan Limestone GAFL MAS-2, SWQA-1, SWQA-2 60 2002, 2003
ACFB1 SUS-11 19 2002, 2003
Piedmont and Blue Ridge Crystalline rocks (metamorphic, schist, granite) ACFB1 LUSUR-11 11 1994
KANA MAS-2 30 1997
PODL SWQA-1 15 2003
LSUS MAS-2 30 1994
Carbonate rocks (limestone, dolomite) LSUS LUSAG-1 30 1993
Basin and Range Sand, gravel, clay NVBR MAS-2, SWQA-1, LUSUR-2 41 2003
Limestone MAS-4 18
Volcanic (basalt sand and gravel interbeds) MAS-2 4
Central Valley Sand, gravel, silt SANJ MAS-1, MASCR-1a 30 2002
Alluvium SWQA-1 15 2003
Glacial Deposits Sand, gravel, clay CONN MAS-2, SWQA-1 45 2002, 2003
DELR MAS-3 16 2001
HPGW SWQA-1 15 2003
LERI LUSspecial-1 28 1997
PUGT LUSCR-1, LUSRS-1, FPSCR-1 27 1998
WHMI SWQA 15 2003
WMIC MAS-2 28 2003
REDN1 LUSAG1 12 2000
High Plains Sand, gravel HPGW MAS-4, MAS-5 57 2003, 2004
Coastal Lowlands Sand, semiconsolidated sand TRIN MAS-3, SWQA-1 45 2002, 2003
Mississippi Embayment- Texas Coastal Uplands Semiconsolidated sand ACAD MAS-3 21 2004
North Atlantic Coastal Plain Sand, clay, semiconsolidated sand PODL MAS-1, MAS-2, LUSspecial-1 50 2001, 2002, 2003, 2004
Limestone1 ALBE1 SUS-71 19 2002, 2003
Ordovician Limestone TENN (lower) MAS-2 30 2000, 2001
Valley and Ridge Shale, sandstone DELR MAS-2 30 2000
LSUS MAS-1 29 1993
Limestone, dolomite LSUS LUSAG-2, LUSAG-3, LUSUR-1 66 1994, 1995
TENN (upper) MAS-1 30 1999
Mississippian-Pennsylvanian Sedimentary KANA LUSMI-1, MAS-1 57 1997, 1998
Carbonate rocks (residuum, limestone, dolomite) TENN (lower) MAS-1, LUSAG-1 64 1999, 2000, 2001
Southeastern Coastal Plain Sand, clay MOBL LUSRC-1 30 2000
SANT MAS-1 28 1997
Stream and River Valley Alluvium UCOL MAS-1, MAS-2, LUSRC-1a, LUSRC-1b, LUS-1c, LUS-1d, LUS-1e 68 1997, 1998
YELL LUSother-1 28 2001
Denver Basin1 Shale, sandstone1 SPLT1 SWQA-11 112 2003
Ozark Plateaus1 Limestone1 OZRK1 LUSAG-2a1, REF-11 16 2002

1 Study unit, well-sampling network, and wells not included in final analyses of this report.

Back to Table of Contents


AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America home page.FirstGov buttonU.S. Department of the Interior | U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065290
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 19:30:06 EST