National Water-Quality Assessment (NAWQA) Program

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Special studies on source-water and drinking-water quality
Surface-water intakes
General Information

Regional Principal Aquifer Contacts

Principal or Other Aquifer

Water-Quality Assessment Program
Principal Aquifer Lead Scientist

Telephone Number

Email Address

Principal Aquifer Coordinator

Barb Mahler


Basin and Range alluvial and carbonate-rock aquifers

Sue Thiros


California Coastal Basin aquifers

Central Valley aquifer system

Rio Grande aquifer system

Biscayne aquifer

none currently

none currently

none currently

Floridan aquifer system + overlying Coastal Plain surficial

Cambrian-Ordovician aquifer system

Kelly Warner

217-344-0037 x3010

Glacial deposit aquifers

New England crystalline-rock aquifers

Coastal Lowlands aquifer system

Jim Kingsbury


Edwards-Trinity aquifer system

Mississippi Embayment-Texas Coastal Uplands aquifer system

Columbia Plateau basin-fill and basaltic rock aquifers

Michael Rupert

(719) 544-7155 x113

Hawaiian volcanic rock aquifers

Snake River plain basin-fill and basaltic rock aquifers

Denver basin aquifer system

Nancy Bauch


High Plains aquifer system

Pete McMahon

303-236-4882 x286

Northern Atlantic Coastal Plain aquifer system

Judith Denver

302-734-2506 x229

Piedmont and Blue Ridge aquifers

Bruce Lindsey


Valley and Ridge aquifers

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Page Last Modified: Tuesday, 04-Mar-2014 14:45:21 EST