Tammy Zimmerman

Biography

Education:
B. S. Civil Engineering, Pennsylvania State University, 1994

Professional Experience:
I have worked for over 22 years with the U.S. Geological Survey (USGS) and have lead a variety of projects with an emphasis in ground water and surface water hydrology, water quality, microbiology, and statistics as part of my assignments. I began work with the USGS in 1991 as a student trainee in Altamonte Springs, Florida and later transferred to Pennsylvania where I was converted to a hydrologist (1995), upon completion of my bachelor’s degree in December of 1994. I currently serve as the PA-WSC Surface Water and Ecology Section Chief. Recent projects include Great Lakes Restoration Initiative (GLRI) work to address bacteriological issues in Lake Erie on and near the beaches at Presque Isle, Erie, Pennsylvania and a statewide study with the Pennsylvania Department of Agriculture to determine pesticide occurrence and changes in concentration in vulnerable groundwater aquifers in Pennsylvania.  

 

Publications:

(last name changed from Bickford to Zimmerman 6/99)

 

Lindsey, B.D., Zimmerman, T.M., Chapman, M.J., Cravotta, C.A., and Szabo, Z., in review, Water Quality in the Piedmont and Blue Ridge crystalline- and carbonate-rock aquifers, Early Mesozoic basin aquifers, and the Valley and Ridge aquifers, Eastern United States, 1993–2009: U.S. Geological Survey Circular 1354.

Francy, D.S., Brady, A.M.G., Carvin, R.B., Corsi, S.R., Fuller, L.M., Harrison, J.H., Hayhurst, B.A., Lant, J., Nevers, M.B., Terrio, P.J., and Zimmerman, T.M., 2013, Developing and implementing predictive models for estimating recreational water quality at Great Lakes beaches: U.S. Geological Survey Scientific Investigations Report 2013–5166, 68 p., http://dx.doi.org/10.3133/sir20135166/.

 

Zimmerman, T.M. and Breen, K.J., 2012, Evaluating Changes in Matrix Based Recovery-Adjusted Concentrations in Paired Data for Pesticides in Groundwater: Journal of Environmental Quality, v. 41, no. 4, p. 1238-1245.

 

Johnson, G.C., Zimmerman, T.M., Lindsey, B.D., and Gross, E.L., 2011, Factors Affecting Groundwater Quality in the Valley and Ridge Aquifers, Eastern United States, 1993-2002: U.S. Geological Survey Scientific Investigations Report 2011-5115, 70 p.

  

Loper, C.A., Breen, K.J., Zimmerman, T.M., and Clune, J.W., 2009, Pesticides in Ground Water in Selected Agricultural Land-Use Areas and Hydrogeologic Settings in Pennsylvania, 2003-07: U.S. Geological Survey Scientific Investigations Report 2009-5139, 123 p.

 

Koerkle, E.H. and Zimmerman, T.M., 2009, Documentation of the Highlands regional rainfall-runoff model, Southeastern and South-Central Pennsylvania: U.S. Geological Survey Administrative Report, 21 p.

 

Zimmerman, T.M., 2008, Modeling to Predict Escherichia coli at Presque Isle Beach 2, City of Erie, Erie County, Pennsylvania: U.S. Geological Survey Scientific Investigations Report 2008-5039, 13 p.

 

Lindsey, B.D., Falls, W.F., Ferrari, M.J., Zimmerman, T.M., Harned, D.A., Sadorf, E.M., and Chapman, M.J, 2006, Factors affecting occurrence and distribution of selected contaminants in ground water from selected areas in the Piedmont Aquifer System, eastern United States, 1993-2003: U.S. Geological Survey Scientific Investigations Report 2006-5104, 72 p.

 

Zimmerman, T.M., 2006, Monitoring and modeling to predict Escherichia coli at Presque Isle Beach 2, City of Erie, Erie County, Pennsylvania: U.S. Geological Survey Scientific Investigations Report 2006-5159, 15 p.

 

Buckwalter, T.F., Zimmerman, T.M., and Fulton, J.W., 2006, Fecal-Indicator Bacteria in the Allegheny, Monongahela, and Ohio Rivers and Selected Tributaries, Allegheny County, Pennsylvania, 2001-2005: U.S. Geological Survey Scientific Investigations Report 2006-5216, 27 p.

 

Zimmerman, T.M., and Risser, D.W., 2005, Drought-sensitive aquifer settings in southeastern Pennsylvania: U.S. Geological Survey Scientific Investigations Report 2005-5169, 21 p.

 

Lindsey, B.D., Rasberry, J.S., and Zimmerman, T.M., 2002, Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania: U.S. Geological Survey Water-Resources Investigations Report 01-4268, 30 p.

 

Zimmerman, T.M., Zimmerman, M.L., and Lindsey, B.D., 2001, Relation between selected well-construction characteristics and occurrence of bacteria in private household-supply wells, South-central and Southeastern Pennsylvania: U.S. Geological Survey Water-Resources Investigations Report 01-4206, 22 p.

 

Hainly, R.A., Zimmerman, T.M., Loper, C.A., and Lindsey, B.D., 2001, Summary of and factors affecting pesticide concentrations in streams and shallow wells of the Lower Susquehanna River Basin, Pennsylvania and Maryland, 1993-95: U.S. Geological Survey Water-Resources Investigations Report 01-4012, 75 p.

 

Lindsey, B.D. and Bickford, T.M., 1999, Hydrogeologic Framework and Sampling Design for an Assessment of Agricultural Pesticides in Ground Water in Pennsylvania, U.S. Geological Survey Water-Resources Investigations Report 99-4076, 44 p.

 

Hainly, R.A. and Bickford, T.M., 1997, Factors affecting pesticide concentrations in streams and shallow wells of the Lower Susquehanna River Basin, 1993-1995 [abs.]: EOS, Transactions of the American Geophysical Union, v. 78, no. 17, p. S135, Supplement with abstracts for the 1997 Spring Meeting, Baltimore, Md.

 

Bickford, T.M. and Lindsey, B.D., 1997, Bacteriological quality of ground water used for household supply, Lower Susquehanna River Basin, Pennsylvania and Maryland [abs.] in Biological aspects of ground water: National Ground Water Association, 1997 National Convention and Exposition, Las Vegas, Nev., September 4-6, 1997, p. 91-92.

 

Bickford, T.M., Lindsey, B.D., and Beaver, M.R., 1996, Bacteriological quality of ground water used for household supply, Lower Susquehanna River Basin, Pennsylvania and Maryland: U.S. Geological Survey Water-Resources Investigations Report 96-4212, 31 p.