Education

Ph.D., Environmental Sciences and Engineering, Spring 2009
University of North Carolina at Chapel Hill, Chapel Hill, NC
Advisor: Dr. Gregory Characklis

M.S., Biological Systems Engineering, Spring 2004
Virginia Polytechnic Institute and State University, Blacksburg, VA
Advisor: Dr. Theo Dillaha

B.S., Biological Systems Engineering, magna cum laude, Summer 2002
Virginia Polytechnic Institute and State University, Blacksburg, VA
Minor: English Literature

Professional Experience

Associate Professor, Biological Systems Engineering, Virginia Tech, June 2017 - present

Assistant Professor, Biological Systems Engineering, Virginia Tech, Aug 2011 - June 2017

Research Assistant Professor, Biological Systems Engineering, Virginia Tech, Sept 2009 - July 2011

Post-doctoral Research Associate, Environmental Sciences and Engineering, University of North Carolina, Spring - Summer 2009

Peer-reviewed Publications (*=Krometis group student author)

Billian*, H., L. Krometis, C. Hagedorn, T Thompson. (in press, August 2017). Movement of traditional fecal indicator bacteria and source-tracking targets through septic drainfields. Science of the Total Environment.

Garner, E., R. Benitez, E. von Wagoner; R. Sawyer, E. Schaberg, W. C. Hession, L. Krometis, B. Badgley, A. Pruden. 2017. Stormwater loadings of antibiotic resistance genes in an urban stream. Water Research doi: 10.1016/j.watres.2017.06.046.

Govenor*, H., L. Krometis, W. C. Hession. 2017. Invertebrate-Based Water Quality Impairments and Associated Stressors Identified through the US Clean Water Act. Environmental Management doi: 10.1007/s00267-017-0907-3.

Krometis, L., J. Gohlke, K. Kolivras, E. Satterwhite, S. Marmagas, L. Marr. 2017. Environmental Health Disparities in the Central Appalachian Region of the United States. Reviews on Environmental Health doi: 10.1515/reveh-2017-0012.

Willard*, L., T. Thompson, L. Krometis, T. Neher, B. Badgley. 2017. Does it pay to be mature? Assessing the performance of a bioretention cell seven years post-construction. Journal of Environmental Engineering 143(9): 04017041.

Cantor*, J., L. Krometis, E. Sarver, N. Cook*, B. Badgley. 2017. Tracking the Downstream Impacts of Inadequate Sanitation in Central Appalachia. Journal of Water and Health 15(4): 580-590.

Chirwa, C. F. C., R. P. Hall, L. H. Krometis, E. Vance, A. Edwards, T. Guan, R. H. Holm. 2017. Pit latrine fecal sludge resistance using a dynamic cone penetrometer in low income areas in Mzuzu city, Malawi. International Journal of Environmental Research and Public Health 14(87): doi:10.3390/ijerph14020087.

Smyntek, P, R. Wagner, L. Krometis, S. Carvajal, T. Thompson, and W. Strosnider. 2017. Passive biological treatment of mine water to reduce conductivity: Potential designs, challenges, and research needs. Journal of Environmental Quality 46: 1-9.

Pieper*, K., L. Krometis, D. Gallagher, B. Benham. 2016. Simultaneous influence of geology and system design on drinking water quality in private systems. Journal of Environmental Health 79(2): S1-S8.

Pieper*, K., L. Krometis, M. Edwards. 2016. Quantifying lead leaching potential from plumbing exposed to aggressive waters. Journal of the American Water Works Association 108(9): DOI: 10.5942/jawwa.2016.108.0125.

Liao*, H., L. Krometis, K. Kline. 2016. Coupling a continuous watershed-scale microbial fate and transport model with a stochastic dose-response model to estimate risk of illness in an urban watershed. Science of the Total Environment (551/552): 668-675.

Benham, B., E. Ling, P. Zeigler, and L. Krometis. 2016. What's in Your Water?: Critical Evolution of the Virginia Household Water Quality Program and Virginia Master Well Owner Network. Journal of Human Sciences and Extension 4(1): 123-138.

Pieper*, K., L. Krometis, D. Gallagher, B. Benham, M. Edwards. 2015. Profiling private water systems to identify patterns of waterborne lead exposure. Environmental Science and Technology 49(21): 12697-12704.

Liao*, H., L. Krometis, K. Kline, C. Hession. 2015. Long-term impacts of bacteria-sediment interactions in watershed-scale microbial fate and transport modeling. Journal of Environmental Quality 44(5): 1483-1490.

Cook*, N., E. Sarver, L. Krometis, J. Huang. 2015. Habitat and water quality as drivers of ecological system health in Central Appalachia. Ecological Engineering 84: 180-189.

Pieper*, K., L. Krometis, D. Gallagher, B. Benham, M. Edwards. 2015. Incidence of waterborne lead in private drinking water systems in Virginia. Journal of Water and Health 13(3): 897-908.

Liao*, H., L Krometis, C. Hession, R. Benitez, R. Sawyer, E. Schaeberg, E. von Wagoner, B. Badgley. 2015. Storm loadings of general and human-specific fecal indicators in an inland urban stream. Science of the Total Environment (530/531): 347-356.

Collins, E., J. A. Ogejo, L. H. Krometis. 2015. The effects of temperature and duration of pasteurization on pathogen inactivation in anaerobically digested separated liquid dairy manure. Journal of Environmental Science and Health, Part A 50: 971-979.

Cook*, N., L. Krometis, E. Sarver, J. Huang. 2015. Inorganic constituents of conductivity in five Central Appalachian watersheds with mixed source-driven pollutants. Ecological Engineering 82: 175-183.

Cook*, N., E. Sarver, L. H. Krometis. 2015. Putting corporate social responsibility to work in mining communities. Resources 4:185-202.

Smith*, T., L. H. Krometis, C. Hagedorn, B. Benham, A. H. Lawrence, E. Ling, P. Ziegler, S. W. Marmagas. 2014. Associations between fecal indicator bacteria prevalence and demographic data in private water supplies in Virginia. Journal of Water and Health 12(4): 824-834.

Liao*, H., L. Krometis, C. Hession, L. House, K. Kline, B. Badgley. 2014. Hydrometeorological and physicochemical drivers of fecal indicator bacteria in urban stream bottom sediments. Journal of Environmental Quality 43: 2034-2043.

Fahrenfeld, N., K. Knowlton, L. Krometis, W. C. Hession, K. Xia, E. Lipscomb, K. Libuit, B. Green, A. Pruden. 2014. Manure application's effect on levels of antibiotic resistance genes and their attenuation rates in soil: Field-scale mass balance approach. Environmental Science and Technology 48(5): 2643-2650.

Coffey, R., B. Benham, L. Krometis, M. L. Wolfe, E. Cummins. 2014. Assessing the effects of climate change on waterborne microorganisms: Implications for EU and USA water policy. Human and Ecological Risk Assessment 20: 724-742.

Hathaway, J. M., L. H. Krometis, W. F. Hunt. 2014. Exploring Seasonality in E. coli/Fecal Coliform Ratios in Urban Watersheds. Journal of Irrigation and Drainage Engineering 140(4): 04014003.

Krometis, L., R. T. Noble, G. W. Characklis, A. D. Blackwood, M. D. Sobsey. 2013. Assessment of E. coli partitioning behavior via both culture-based and qPCR methods. Water Science and Technology 68(6): 1359-1369.

Allevi*, R. P., L. Krometis, C. Hagedorn, B. Benham, A. Lawrence, E. Ling, P. Ziegler. 2013. Quantitative analysis of microbial contamination in private drinking water supply systems. Journal of Water and Health 11(2): 244-255.

Krometis, L., L. Chinery. 2013. Burden of disease from produce and seafood contamination. In: Environmental Burden of Disease Assessment: A Case Study in the United Arab Emirates. Springer, US. pp. 307-348.

Characklis, G., L. Krometis, J. LoBuglio. 2013. Burden of disease from coastal water pollution. In: Environmental Burden of Disease Assessment: A Case Study in the United Arab Emirates . Springer, US. pp. 263-288.

Davidson, C., L. Krometis, S. Al-Harthi, J. Macdonald-Gibson. 2012. Foodborne exposure to pesticides and methylmercury in the United Arab Emirates. Risk Analysis 32: 381-394.

Benham, B., L. H. Krometis, G. Yagow, K. Klein, T. Dillaha. 2011. Watershed modeling for TMDLs. In: Microbial Source Tracking: Methods, Applications, and Case Studies. Springer, US. pp. 313-335.

Krometis, L.H., E. P. Clark, V. Gonzalez, M. E. Leslie. 2011. The "death" of disciplines: Development of a team-taught course to provide an interdisciplinary perspective for first-year students. College Teaching 59(2): 73-78.

Krometis, L. H., G. W. Characklis, P. N. Drummey, M. D. Sobsey. 2010. Comparison of indicator organism and Salmonella spp. partitioning behavior in an urban watershed. Journal of Water and Health 8(1): 44-59.

Krometis, L. H., G. W. Characklis, M. D. Sobsey. 2009. Identification of particle size classes inhibiting protozoan recovery from surface water samples via USEPA Method 1623. Applied and Environmental Microbiology 75(20): 6619-6621.

Krometis, L. H., P. N. Drummey, G. W. Characklis, M. D. Sobsey. 2009. Impacts of microbial partitioning on wet detention pond effectiveness. Journal of Environmental Engineering 135(9): 758-767.

Krometis, L.H., T. A. Dillaha, N. G. Love, S. Mostaghimi. 2009. Evaluation of a filtration/dispersion method for enumeration of particle-associated E. coli. Journal of Environmental Quality 38(3): 980-986.

Cizek, A. R., G. W. Characklis, L. H. Krometis, J. A. Hayes, O. D. Simmons III, S. DiLonardo, K. A. Alderisiio, and M. D. Sobsey. 2008. Comparing the partitioning behavior of Giardia and Cryptosporidium with that of indicator organisms in stormwater runoff. Water Research 42(17): 4421-4438.

Krometis, L. H., G. W. Characklis, M. J. Dilts, O. D. Simmons, III, C. A. Likirduplos, M. D. Sobsey. 2007. Intra-storm variability in microbial partitioning and microbial loading rates. Water Research 41(2): 506-516.

Characklis, G. W., M. J. Dilts, O. D. Simmons, III, Christina A. Likirduplos, L. H. Krometis, M. D. Sobsey. 2005. Microbial partitioning to settleable solids in stormwater. Water Research 39(9): 1773-1782.

Wynn, T., S. Mostaghimi, J. Burger, A. Harpold, M. Henderson, and L.-A. Henry [Krometis]. 2004. Variation in root density along stream banks. Journal of Environmental Quality 33(6): 2030-2039.

Selected Grants

Evaluation of potential biological treatment design options to reduce conductivity in mine discharges, Appalachian Research Initiative for Environmental Science (ARIES), $60,000, 8/15-6/16, Principal Investigator (co-PIs: W. Strosnider, R. Wagner, T. Thompson).

Effective Strategies for Mitigating Antibiotic Resistance, National Institute of Food and Agriculture (USDA-NIFA), $2,250,000, 1/15-12/17, Co-Principal Investigator (PI: A. Pruden; Co-PIs: K. Knowlton, K. Xia, C. Hession, M. Ponder, T. Archibald, A. Vallotton).

Use of fecal source-tracking techniques in groundwater quality management to reduce waterborne disease outbreaks, VT-ICTAS, $119,528, 7/14-7/16, Principal Investigator (co-PI: C. Hagedorn).

Tazewell County Cancer Project, Tazewell County (Virginia) Board of Supervisors, $74,976, 7/14-7/15, Co-Principal Investigator (PI: K. Hosig, A. Smith; Co-PIs: S. Marmagas, J. Li, S. Wetzel).

StREAM Lab Examination of Critical Watershed Processes Governing Dissemination of Agricultural Sources of Antibiotic Resistance, VT-ICTAS, $74,863, 7/12-6/13, Co-Principal Investigator (PI: A. Pruden; Co-PIs: K. Xia, K. Knowlton, C. Hession, Z. Liu).

REU Site: Dynamics of Water and Societal Systems - An Interdisciplinary Research Program at the Virginia Tech StREAM Lab, National Science Foundation (NSF), $314,289, 3/12-3/15, Co-Principal Investigator (PI: W. C. Hession).

Assessment of Biological Water Quality Impairments in Central Appalachian Mining Communities, Appalachian Research Initiative for Environmental Science (ARIES), $440,000, 10/11-6/16, Principal Investigator (co-PI: E. Sarver).

What's in Your Water? Linking Rural Health and Household Drinking Water Safety, National Institute of Food and Agriculture (USDA-NIFA), $195,193, 8/11-7/12, Principal Investigator (co-PIs: B. Benham, P. Ziegler).

Water Quality and Environmental Health in Botswana - Coupled Dynamics in a Water Scarce Environment, National Science Foundation (NSF), $249,983, 7/11-6/13, co-Principal Investigator (PI: K. Alexander; co-PIs: M. Ponder, J. Bock, J. Blackburn).

Stroubles Research, Education, and Management Site (StREAMS) Laboratory, VT College of Agriculture Integrated Grant, $43,327, 10/10-6/11, co-Principal Investigator (PI: W. C. Hession, co-PIs: B. Benham, W.L. Daniels, G. Evanylo, D. Scott, T. Wynn, E. Hester, K. McGuire, W. Aust, F. Benfield, D. Orth).

Analysis of Historical Data Collected by the Virginia Household Water Quality Program to Inform Development of Proposals Focused on Rural Public Health Protection, VT College of Agriculture Integrated Grant, $6,500, 10/10-6-11, Principal Investigator (Co-PIs: B. Benham, E. Ling, P. Ziegler).