Timothy M. LaPara

Timothy M. LaPara

Timothy M. LaPara

Professor & Mental Health Advocate, Department of Civil, Environmental, and Geo- Engineering

Contact

Civil Engineering Building
Room 146
500 Pillsbury Drive SE
Minneapolis, MN 55455

Education

  • Ph.D., 1999, Environmental Engineering, Purdue University
  • B.S.C.E., 1995, University of Notre Dame
Research Interests

Experts@Minnesota

Biological wastewater treatment, wastewater microbiology, environmental microbiology, structure-function relationships in mixed microbial communities, microbial ecology, microbial evolution, antibiotic resistance.

Selected Publications

Kim T, Behrens S, and LaPara TM. 2021. Direct evidence of deterministic assembly of bacterial communities in full-scale municipal wastewater treatment facilities. Applied and Environmental Microbiology 87(20): e01086-21.

Kim T,  Behrens S, and LaPara TM. 2021. Evaluating different quantitative PCR assays to enumerate several microbial populations in anaerobic digesters treating municipal wastewater solids. Journal of Environmental Engineering 147(10): 04021035.

Kim T, O’Leary E, Behrens S, and LaPara TM. 2021. Evaluating quantitative PCR assays to enumerate several bacterial populations of importance in different municipal wastewater treatment designs. Journal of Environmental Engineering 147(10):04021044.

Bueno I, Beaudoin A, Arnold WA, Kim T, Frankson LE, LaPara TM, Kanankege K, Wammer KH, and Singer RS. 2021. Quantifying and predicting antimicrobials and antimicrobial resistance genes in waterbodies through a holistic approach: A study in Minnesota, United States.  Scientific Reports 11(1):18747.

Kim T, Behrens SF, and LaPara TM. 2021.  Different engineering designs have profoundly different impacts on the microbiome and nitrifying bacterial populations in municipal wastewater treatment bioreactors. Applied and Environmental Microbiology 87(18):e01044-21

Kim T, Behrens S, and LaPara TM. 2021. Microbial community composition in municipal wastewater treatment bioreactors follows a distance decay pattern primarily controlled by environmental heterogeneity. mSphere 6(5):e00648-21.

Kim, T., Hite, M., Rogacki, L., Sealock, A., Sprouse, G., Novak, P. J. & LaPara, T. M. 2021. Dissolved oxygen concentrations affect the function but not the relative abundance of nitrifying bacterial populations in full-scale municipal wastewater treatment bioreactors during cold weather. Science of the Total Environment. 781, [146719]. doi: 10.1016/j.scitotenv.2021.146719

McGivern, B. B., McDonell, R. K., Morris, S. K., LaPara, T. M. & Donato, J. J. 2021. Novel class 1 integron harboring antibiotic resistance genes in wastewater-derived bacteria as revealed by functional metagenomics. Plasmid. 114, [102563]. doi: 10.1016/j.plasmid.2021.102563

Hozalski RM, TM LaPara, XT Zhao, T Kim, MB Waak, T Burch, M McCarty. 2020. Flushing of stagnant premise water systems after the COVID-19 shutdown can reduce infection risk by Legionella and Mycobacterium spp. Environmental Science and Technology 54:15914-15924.

Ma B, TM LaPara, RM Hozalski. 2020. Microbiome of drinking water biofilms is influenced by environmental factors and engineering decisions but has little influence on the microbiome of the filtrate. Environmental Science and Technology 54:11526-11535.

Brooker, M. R., Arnold, W. A., Kerrigan, J. F., LaPara, T. M., Witter, J. D. & Mouser, P. J. 2020. Characterization of antibiotic resistance and metal homeostasis genes in midwest USA agricultural sediments. Water (Switzerland). 12(9), [2476]. doi: 10.3390/w12092476

Hozalski, R. M., LaPara, T. M., Zhao, X., Kim, T., Waak, M. B., Burch, T. & McCarty, M., 2020. Flushing of stagnant premise water systems after the COVID-19 shutdown can reduce infection risk by Legionella and Mycobacterium spp. Environmental Science and Technology. 54(24), 15914-15924. doi: 10.1021/acs.est.0c06357

Ma, B., Lapara, T. M., & Hozalski, R. M. 2020. Microbiome of drinking water biofilters is influenced by environmental factors and engineering decisions but has little influence on the microbiome of the filtrateEnvironmental Science and Technology54(18), 11526-11535. doi: 10.1021/acs.est.0c01730

Brooker MR, WA Arnold, JF Kerrigan, TM LaPara, JD Witter, PJ Mouser. 2020. Characterization of antibiotic resistance and metal homeostasis genes in Midwest USA agricultural sediments. Water 12:2476.

Ma, B., LaPara, T. M., Evans, A. N., & Hozalski, R. M. 2020. Effects of geographic location and water quality on bacterial communities in full-scale biofilters across North America. FEMS Microbiology Ecology, 96(2), [fiz210]. doi: 10.1093/femsec/fiz210

Gordon, B. A., Lenhart, C., & LaPara, T. M. 2020. A comparison of nitrate removal and denitrifying bacteria populations among three wetland plant communities. Journal of Environmental Quality, 49(1), 210-219. doi: 10.1002/jeq2.20004

Waak, M. B., LaPara, T. M., Hallé, C. & Hozalski, R. M. 2019. Nontuberculous Mycobacteria in Two Drinking Water Distribution Systems and the Role of Residual Disinfection. Environmental Science and Technology. 53, 15, p. 8563-8573.

Waak, M. B., Hozalski, R. M., Hallé, C. & LaPara, T. M. 2019. Comparison of the microbiomes of two drinking water distribution systems - With and without residual chloramine disinfection. Microbiome. 7, 1, 87.

Johnston, J., LaPara, T. M. & Behrens, S. F. 2019. Composition and Dynamics of the Activated Sludge Microbiome during Seasonal Nitrification Failure. Scientific Reports. 9, 1, 4565.

Waak, M. B., LaPara, T. M., Hallé, C. & Hozalski, R. M. 2018. Occurrence of Legionella spp. in water-main biofilms from two drinking water distribution systems. Environmental Science and Technology. 52, 14, p. 7630-7639.

Pruden, A., Alcalde, R. E., Alvarez, P. J. J., Ashbolt, N., Bischel, H., Capiro, N. L., Crossette, E., Frigon, D., Grimes, K., Haas, C. N., Ikuma, K., Kappell, A., LaPara, T. M., Kimbell, L., Li, M., Li, X., McNamara, P., Seo, Y., Sobsey, M. D., Sozzi, E. & 6 others. 2018. An environmental science and engineering framework for combating antimicrobial resistance. Environmental Engineering Science. 35, 10, p. 1005-1011.

Aggarwal, S., Gomez-Smith, C. K., Jeon, Y., LaPara, T. M., Waak, M. B. & Hozalski, R. M. 2018. Effects of chloramine and coupon material on biofilm abundance and community composition in bench-scale simulated water distribution systems and comparison with full-scale water mains. Environmental Science and Technology. 52, 22, p. 13077-13088.

Kerrigan, J. F., Sandberg, K. D., Engstrom, D. R., LaPara, T. M. & Arnold, B. 2018. Small and large-scale distribution of four classes of antibiotics in sediment: association with metals and antibiotic resistance genes. Environmental Science: Processes and Impacts. 20, 8, p. 1167-1179.

Kerrigan, J. F., Sandberg, K. D., Engstrom, D. R., LaPara, T. M. & Arnold, B. 2018. Sedimentary record of antibiotic accumulation in Minnesota lakes. Science of the Total Environment. 621, p. 970-979.

Sandberg KD, S Ishii and TM LaPara. 2018. A microfluidic quantitative polymerase chain reaction method for the simultaneous analysis of dozens of antibiotic resistance and heavy metal resistance genes. Environmental Science and Technology Letters 5(1): 20-25.