Maryland Department of Natural Resources

Staff Profile

David C. Andreasen (Hydrogeologist)

B-3 Tawes State Office Bldg.
580 Taylor Avenue
Annapolis, MD 21401
(410) 260-8814; (fax) 410.260.8817
Email

Current Projects

Fall 2014: Study of the occurrence and distribution of radionuclides in aquifers in Charles County, Maryland.


Past Projects

Completed a study of the hydrogeology surrounding a Confined Aquatic Disposal (CAD) site for placement of dredge material from Baltimore Harbor, and a project developing a GIS (ArcMap) system for visualizing water-quality data in Garrett County, Maryland using multiple, cross agency databases. Constructed potentiometric surface maps for the Aquia, Magothy, Upper Patapsco, Lower Patapsco, and Patuxent aquifers using 2013 synoptic water-level measurements. Refined and compiled the hydrostratigraphic framework of Maryland's Coastal Plain aquifer system into a GIS-based database. Constructed a GIS-based system for storing and displaying hydrogeologic data for Maryland's Coastal Plain aquifer system (Maryland Coastal Plain Aquifer Information System). Constructed ground-water-flow models (MODFLOW) for water-supply management in the Coastal Plain aquifer system (Anne Arundel and Charles Counties). Applied optimization modeling to evaluate efficiency of pumping schemes. Refined the hydrogeologic framework through test-drilling programs (various areas across the Coastal Plain). Mapped the saltwater interface of an important water-supply aquifer (Aquia aquifer in Anne Arundel County). Developed areas contributing recharge ("well-head protection areas") to a major water supplier (Town of Salisbury).


Education

B.S., University of Maryland, College Park, Geology


Associations and Memberships

International Association of Hydrogeologists

National Groundwater Association


Reports

Andreasen, D.C., and Hansen, H.J., 1987, Summary of hydrogeologic data from a test well (1,725 ft.) drilled in Tuckahoe State Park, Queen Anne’s County, Maryland: Maryland Geological Survey Open- File Report No. 87-02-3, 47 p.

Mack, F.K., and Andreasen, D.C., 1991, Geohydrologic data for the Coastal Plain sediments underlying Broadneck Peninsula, Anne Arundel County, Maryland: Maryland Geological Open-File Report No. 92-02-6,70 p.

Fleck, W.B., Andreasen, D.C., 1997, Geohydrologic framework, ground-water quality and flow, and brackish-water intrusion in east-central Anne Arundel County, Maryland, with a section on Potential for brackish-water intrusion in the Aquifer in the Annapolis area by Barry S. Smith: Maryland Geological Survey Report of Investigations No. 62, 136 p.

Andreasen D.C., and Smith, B.S., 1998, Hydrogeology and simulation of ground-water flow in the Upper Wicomico River Basin and estimation of contributing areas of the City of Salisbury well fields, Wicomico County, Maryland: Maryland Geological Survey Report of Investigations No. 65, 87 p.

Andreasen, D.C., and Mack, F.K., 1998, Evaluation of the geohydrology and water-supply potential of the lower Patapsco and Patuxent aquifers in the Indian Head-Bryans Road area, Charles County, Maryland: Initial Findings: Maryland Geological Survey U.S. Geological Survey Open-File Report No. 98-02-9, 50 p.

Andreasen, D.C, 1999, Geohydrology and water-supply potential of the lower Patapsco aquifer and Patuxent aquifers in the Indian Head-Bryans Road area, Charles County, Maryland: Maryland Geological Survey Report of Investigations No. 69, 119 p.

Andreasen, D.C., and Fewster, T.B, 2001, Estimation of areas contributing recharge to selected public-supply Wells in designated Metro Core areas of Upper Wicomico River and Rockawalking Creek Basins, Maryland: Maryland Geological Survey Open-File Report No. 2001-0214, 28 p.

Andreasen, D.C., 2002, Hydrogeology, water quality, and water-supply potential of the Aquia and Magothy aquifers in Southern Anne Arundel County, Maryland: Maryland Geological Survey Report of Investigations No. 74, 110 p.

Andreasen, D.C., 2003, Optimization of ground-water withdrawals in the Lower Patapsco aquifer, Waldorf, Maryland: Maryland Geological Survey Open-File Report 2003-02-17, 51 p.

Andreasen, D.C., 2004, Optimization of ground-water withdrawals from the Lower Patapsco and Patuxent aquifers in the Bryans Road service area, Charles County, Maryland: Maryland Geological Survey Administrative Report, 24 p.

Andreasen, D.C., 2004, Optimization of ground-water withdrawals from the Lower Patapsco and Patuxent aquifers in the Bryans Road Service Area, Charles County, Maryland: Maryland Geological Survey Administrative Report, 21 p.

Andreasen, D.C., 2006, Optimization of ground-water withdrawals from the Upper Patapsco, Lower Patapsco, and Patuxent aquifers in the Anne Arundel County, Maryland: Maryland Geological Survey Report of Investigations No. 77, 107 p.

Duigon, M.T., Andreasen, D.C, Curtin, S.E., Gerhart, J.M., Smigaj, M.J., Yeskis, D.J., and Smith, M.A., 2006, The Maryland State observation-well network—Recommendations for the design of an optimum network: Maryland Geological Survey Open-File Report (unpublished)

Staley, A.W., Bell, S.C., Andreasen, D.C., and Bolton, D.W., 2009, Hydrogeologic data for the Coastal Plain sediments northwest of Ft. Meade, Maryland: Maryland Geological Survey Administrative Report 09-02-04, 56 p.

Raffensperger, J.R., Fleming, B.J., Banks, S.L., Horn, M.A., Nardi, M.R., and Andreasen, D.C., 2010, Simulation of groundwater flow to assess future withdrawals associated with Base Realignment and Closure (BRAC) at Fort George G. Meade, Maryland: U.S. Geological Survey Scientific Investigations Report 2010-5186, 48 p.

Drummond, D.D., Andreasen, D.C., Staley, A.W., and Bolton, D.W., 2011, Hydrogeologic data from eight test- well sites on the Maryland Eastern Shore: Maryland Geological Survey Basic Data Report No. 23, in preparation.

Curtin, S.E., Andreasen, D.C., and Staley, A.W., 2012, Potentiometric surface and water-level difference maps of selected confined aquifers of Southern Maryland and Maryland’s Eastern Shore, 1975–2011: U.S. Geological Survey Scientific Investigations Report 2012–5165, 36 p.

Andreasen, D.C., Achmad, G., and Staley, A.W., 2012, Maryland Coastal Plain aquifer information system (Version 2.0): Hydrogeologic framework: Maryland Geological Survey Open-File Report No. 12-02-20, in preparation.

Andreasen, D.C., Keeney, L., and Bolton, D.W., 2014, Hydrogeology of the Port of Baltimore Confined Aquatic Disposal Pilot Project Area, Masonville, Maryland: Maryland Geological Survey Open-File Report 14-02-01, 43 p.

Bolton, D.W., Quinn, H.A., and Andreasen, D.C., 2014, Compilation and review of GIS-based ground-water quality data from multiple databases for Garrett County, Maryland: Maryland Geological Survey Administrative Report 14-02-02, 14 p.


Journal Articles

Andreasen, D.C., and Fleck, W.B., 1997, Use of bromide:chloride ratios to differentiate potential sources of chloride in a shallow, unconfined aquifer affected by brackish-water intrusion: Hydrogeology Journal, vol. 5, no 2., pp. 17-26

Plummer, L.N., Eggleston, J.R., Andreasen, D.C., Raffensperger, J.P., Hunt, A.G., and Casile, G.C., 2012, Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4: Hydrogeology Journal, Vol. 20, No. 7


Potentiometric Surface Maps

PRELIMINARY MAP SHOWING THE POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1984. Mack, F.K., Wheeler, J.C., Curtin, S.E., and Andreasen, D.C., U.S. Geological Survey Water-Resources Investigations Report No. 85-4338, 1985, 1 p.

THE POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER, 1985. Mack, F.K., Wheeler, J.C., Curtin, S.E., and Andreasen, D.C., U.S. Geological Survey Water Resources Investigations Report No. 87-4029, 1987, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND DURING THE FALL OF 1986. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations report No. 87-4214, 1987, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND DURING THE FALL OF 1987. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigation Report No. 89-4012, 1989, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND DURING THE FALL OF 1988. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 90-4037, 1990, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1989. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 91-4094, 1991, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1990. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-459, 1992, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1991. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 93-652, 1993, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1993. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-390, 1994, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1994. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 95-743, 1995, 1 p.

POTENTIOMETRIC SURFACE OF THE AQUIA AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1995. Curtin, S.E., Andreasen, D.C., and Mack. .K., U.S. Geological Survey Open-File Report No. 96-620, 1996, 1 p.

PRELIMINARY MAP SHOWING THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER OF SEPTEMBER 1982 AND SEPTEMBER 1984 IN SOUTHERN MARYLAND. Mack, F.K., Wheeler, J.C., Curtin, S.E., and Andreasen, D.C., U.S. Geological Survey Water Resources Investigations Report No. 85-4339, 1985, 1 p.

DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER IN THE SPRING OF 1979 AND FALL OF 1986 IN SOUTHERN MARYLAND. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 87-4215, 1987, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER OF SEPTEMBER 1986 AND SEPTEMBER 1988 IN SOUTHERN MARYLAND. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 90-4039, 1990, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER OF SEPTEMBER 1982 AND SEPTEMBER 1990 IN SOUTHERN MARYLAND. Mack, F.K., Curtin, S.E., Andreasen, D.C, and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-463, 1992, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER OF SEPTEMBER 1982 AND SEPTEMBER 1993 IN SOUTHERN MARYLAND. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-394, 1994, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE AQUIA AQUIFER OF SEPTEMBER 1982 AND SEPTEMBER 1995 IN SOUTHERN MARYLAND. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 96-624, 1995, 1 p

THE POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1985. Mack, F.K., Wheeler, J.C., Curtin, S.E., and Andreasen, D.C., U.S. Geological Survey Water Resources Investigations Report No. 87-4025, 1987, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND DURING THE FALL OF 1986. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C¸ U.S. Geological Survey Water Resources Investigations Report No. 87-4216, 1987, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND DURING THE FALL OF 1987. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 89-4013, 1989, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND DURING SEPTEMBER 1988. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 90-4040, 1990, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1989. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 91-4093, 1991, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1990. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-460, 1992, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1991. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 93-653, 1993, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1993. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-391, 1994, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1994. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 95-744, 1995, 1 p.

POTENTIOMETRIC SURFACE OF THE MAGOTHY AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1995. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 96-621, 1996, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE MAGOTHY AQUIFER OF SEPTEMBER 1982 AND SEPTEMBER 1984 IN SOUTHERN MARYLAND. Mack, F.K., Wheeler, J.C., and Curtin, S.E., Andreasen, D.C., U.S. Geological Survey Water Resources Investigations Report No. 85-4337, 1985, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE MAGOTHY AQUIFER IN THE FALL OF 1975 AND FALL OF 1986 IN SOUTHERN MARYLAND. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report No. 87-4217, 1987 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE MAGOTHY AQUIFER OF SEPTEMBER 1986 AND SEPTEMBER 1988 IN SOUTHERN MARYLAND. Mack, F.K., Andreasen, D.C., Curtin, S.E., and Wheeler, J.C., U.S. Geological Survey Water Resources Investigations Report 90-4038, 1990, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE MAGOTHY AQUIFER OF SEPTEMBER 1975 AND SEPTEMBER 1990 IN SOUTHERN MARYLAND. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-464, 1992, 1 p.

THE DIFFERENCE BETWEEN THE POTENTIOMETRIC SURFACES OF THE MAGOTHY AQUIFER OF SEPTEMBER 1975 AND SEPTEMBER 1993 IN SOUTHERN MARYLAND. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-395, 1994, 1 p.

POTENTIOMETRIC SURFACE OF THE UPPER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1990. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-461, 1992, 1 p.

POTENTIOMETRIC SURFACE OF THE UPPER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1991. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 93-654, 1993, 1 p.

POTENTIOMETRIC SURFACE OF THE UPPER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1993. Curtin, S.E., Mack F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-392, 1994, 1 p.

POTENTIOMETRIC SURFACE OF THE UPPER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1994. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 95-745, 1995, 1 p.

POTENTIOMETRIC SURFACE OF THE UPPER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1995. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 96-622, 1996, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1990. Mack, F.K., Curtin, S.E., Andreasen, D.C., and Wheeler, J.C., U.S. Geological Survey Open-File Report No. 92-462, 1992, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1991. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 93-655, 1993, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1994. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 95-746, 1995, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1995. Curtin, S.E., Andreasen, D.C., and Mack, F.K., U.S. Geological Survey Open-File Report No. 96-623, 1996, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1993. Curtin, S.E., Mack, F.K., and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 94-393, 1994, 1 p.

POTENTIOMETRIC SURFACE OF THE LOWER PATAPSCO AQUIFER IN SOUTHERN MARYLAND, SEPTEMBER 1994. Curtin, S.E. and Andreasen, D.C., U.S. Geological Survey Open-File Report No. 95-746, 1995, 1 p.