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Peter Knappett
Peter Knappett
Phone:
(979) 845 2006
Fax:
(979) 845 6162
Email:
knappett@tamu.edu
Office:
Halbouty 53
Address:

Texas A&M University

Department of Geology & Geophysics

MS 3115

College Station, TX 77843


Degrees:

PhD, Hydrogeology (2010), Earth & Planetary Sciences, University of Tennessee at Knoxville

Masters of Applied Science, Water Resources (2006), Civil Engineering, University of Waterloo

Honours Bachelor of Science, Earth Science Minor (2001), University of Waterloo

Awards:

Kohout Early Career Award, Hydrogeology Division, Geological Society of America (2014)

Courses:

GEOL 311 – Scientific writing

GEOL 410 - Hydrogeology

GEOL 610 – Field methods in hydrogeology

GEOL 689 – Groundwater surface water interactions

GEOL 420 - Environmental Geology


Peter Knappett

Assistant Professor

Research Interests

My research program is broadly focused on natural and anthropogenic processes which impact groundwater quality and quantity. For example i’m interested in quantifying the impact of intensive groundwater pumping on regional groundwater quality in regions with problems with arsenic and fluoride. I’m also interested in how dynamic interactions between rivers and aquifers change the supply and biochemical composition of both. The geographic regions I work in tend to lack reliable and accessible geological, geospatial, water levels, water pumping, and chemical data. Therefore my focus is on primary field data collection, visualization and interpretation of high volumes of automated data with the aid of software like Matlab. I’m especially interested in so-called “leap-frog” research methods that can improve both the state-of-knowledge of natural resources and education in developing countries. At the same time, obtaining high quality data from these regions improves our understanding of global processes.    

“Connection between shallow and deep aquifers around Dhaka and the potential for migration of arsenic into safe drinking water aquifers”

References:

Knappett, P. S. K.; Mailloux, B. J.; Choudhury, I.; *Khan, M. R.; Michael, H. A.; *Barua, S.; *Mondal, D. R.; Steckler, M. S.; Akhter, S. H.; Ahmed, K. M.; Bostick, B.; Harvey, C. F.; Shamsudduha, M.; *Mihajlov, I.; *Mozumder, R.; van Geen, A. Vulnerability of Low-Arsenic Aquifers to Municipal Pumping in Bangladesh. In Press, *Journal of Hydrology*. DOI: 10.1016/j.jhydrol.2016.05.035

**Khan, M.; Koneshloo, M.; *Knappett, P. S. K.*; Ahmed, K. M.; Bostick, B. C.; Mailloux, B. J.; *Mozumder, R. H.; Zahid, A.; Harvey, C. F.; van Geen, A.; Michael, H. A. Mega-city pumping in fluvio-deltaic aquifer creates complex vulnerability of arsenic-safe groundwater to contamination. *Nature Communications,* Vol. 7, No. 12833, 2016. *DOI: **10.1038/NCOMMS12833* [0/11.3]

**Knappett, P. S. K.*; Mailloux, B. J.; Choudhury, I.; *Khan, M. R.; Michael, H. A.; *Barua, S.; *Mondal, D. R.; Steckler, M. S.; Akhter, S. H.; Ahmed, K. M.; Bostick, B.; Harvey, C. F.; Shamsudduha, M.; *Mihajlov, I.; *Mozumder, R.; van Geen, A. Vulnerability of Low-Arsenic Aquifers to Municipal Pumping in Bangladesh. *Journal of Hydrology*. Vol. 539, pp. 674-686, 2016. *DOI: 10.1016/j.hydrol.2016.05.035* [1/3.0]

Selected Publications

1) Choudhury, I., Ahmed, K. M., Hasan, M., Mozumder, M. R. H., Knappett, P. S. K., Ellis, T., A. van Geen. Evidence for Elevated Levels of Arsenic in Public Wells of Bangladesh due to Improper Installation. Ground Water, March, 2016. DOI: 10.1111/gwat.12417

2) Brody, A. C.; Cardenas, M. B.; *Shuai, P.; Knappett, P. S. K.; Bennett, P. C. Groundwater flow, nutrient, and stable isotope dynamics in the parafluvial-hyporheic zone of a regulated river during low-flow and small flood pulse conditions. In Press, Hydrogeology Journal.

3) Knappett, P. S. K.; *Du, J.; *Liu, P.; *Horvath, V.; Mailloux, B. J.; Feighery, J.; van Geen, A.; Culligan, P. J. Importance of Reversible Attachment in Predicting E. coli Transport in Saturated Aquifers from Column Experiments. Advances in Water Resources, Vol. 63, pp. 120-130, 2014.

4) Layton, A.; Chaudan, A.; Williams, D.; Mailloux, B.; Knappett, P. S. K.; Ferguson, A; McKay, L.; van Geen, A.; Sayler, G. S. Metagenomes of Microbial Communities in Arsenic and Pathogen Contaminated Well and Surface Water from Bangladesh. Genome Announcements, Vol. 2(6):e01170-14, 2014. doi: 10.1128/genomeA.01170-14.

5) Qiu, S.; Eckert, D.; Cirpka, O. A.; *Hunninger, M.; Knappett, P.; Maloszewski, P.; Meckenstock, R.; Griebler, C.; Elsner, M. Sorption, diffusion-dispersion, or biodegradation? – Carbon isotope analysis of a transient toluene pulse passing through a mesoscale aquifer, Environmental Science & Technology, Vol. 47, No. 13, pp. 6892-6899, 2013.

6) Escamilla, V.; Knappett, P. S. K.; Yunus, M.; Streatfield, P. K.; Emch, M. Influence of Latrine Proximity and Type on Tubewell Water Quality and Diarrheal Disease in Bangladesh. Annals of the Association of American Geographers, Vol. 103, No. 2, pp. 1-9, 2013.

7) Knappett, P. S. K.; McKay, L. D.; Layton, A.; Williams, D. E.; Alam, Md. J.; Mailloux, B. J.; Ferguson, A. F.; Culligan, P. J.; Serre, M. L.; Emch, M.; Ahmed, K. M.; Sayler, G. S.; van Geen, A. Unsealed Tubewells Lead to Fecal Contamination of Drinking Water in Bangladesh. Journal of Water & Health, Vol. 10, No. 4, pp. 565-578, 2012.

8) Ferguson, A. S.; Layton, A. C.; Mailloux, B. J.; Culligan, P. J.; Williams, D. E.; Smartt, A. E.; Sayler, G. S; Feighery, J.; McKay, L. D.; Knappett, P. S. K.; Alexandrova, E.; Arbit, T.; Emch, M.; Escamilla, V.; Ahmed, K. M.; Alam, Md., J.; Streatfield, P. K.; Yunus, Md.; van Geen, A. Comparison of Fecal Indicators with Pathogenic Bacteria and Rotavirus in Groundwater. Science of the Total Environment, Vol. 431, pp. 314-322, 2012.

9) Knappett, P. S. K.; McKay, L. D.; Layton, A.; Williams, D. W.; Mailloux, B. J.; Alam, Md. J.; Huq, Md. R.; Mey, J.; Feighery, J. E.; Culligan, P. J.; Mailloux, B. J.; Zhuang, J.; Escamilla, V.; Emch, M.; Perfect, E.; Sayler, G. S.; Ahmed, K. M.; van Geen, A. Implications of Fecal Bacteria Input from Latrine-Polluted Ponds for Wells in Sandy Aquifers. Environmental Science & Technology, Vol. 46, No. 3, pp. 1361-1370, 2012.

10) Wu, J.; van Geen, A.; Ahmed, K. M.; Akita, Y.; Alam, M. J.; Culligan, P. J.; Escamilla, V.; Feighery, J.; Ferguson, A. S.; Knappett, P. S. K.; Mailloux, B. J.; McKay, L. D.; Serre, M. L.; Streatfield, P. K.; Yunus, M.; Emch, M. Increase in diarrheal disease associated with arsenic mitigation in Bangladesh. PLoS ONE, Vol. 6, No. 12, pp. e29593, 2012.http://dx.doi.org/10.1371/journal.pone.0029593

11) Knappett, P. S. K.; Escamilla, V.; Layton, A.; McKay, L. D.; Emch, M.; Williams, D. E.; Huq, M. R.; Alam, M. J.; Farhana, L.; Mailloux, B. J.; Ferguson, A.; Sayler, G. S.; Ahmed, K. M.; van Geen, A. Impact of population and latrines on fecal contamination of ponds in rural Bangladesh. Science of the Total Environment, Vol. 409, No. 17, pp. 3174-3182, 2011.

12) van Geen, A.; Ahmed, K. M.; Akita, Y.; Alam, M. J.; Culligan, P. J.; Feighery, J.; Ferguson, A.; Emch, M.; Escamilla, V.; Knappett, P.; Layton, A. C.; Mailloux, B. J.; McKay, L. D.; Mey, J. L.; Serre, M. L.; Streatfield, P. K.; Wu, J.; Yunus, M. Seasonal contamination of shallow tubewells in Bangladesh with the fecal indicator E. coli: Impacts of population density and hydrogeology. Environmental Science & Technology, Vol. 45, No. 7, pp. 1199-1205, 2011.

13) Knappett, P. S. K.; Layton, A.; McKay, L. D.; Williams, D.; Mailloux, B. J.; Huq, M. R.; Alam, M. J.; Ahmed, K. M.; Akita, Y.; Serre, M. L.; Sayler, G. S.; van Geen, A. Efficacy of Hollow-Fiber Ultrafiltration for Microbial Sampling in Groundwater. Ground Water, Vol. 49, No. 1, pp. 53-65, 2011.

14) Van den Berg, E.; Perfect, E.; Tu, C.; Knappett, P. S. K.; Leao, T. P.; Donat, R. Unsaturated Hydraulic Conductivity Measurements with Centrifuges: A Review. Vadose Zone Journal, Vol. 8, No. 3, pp. 531-547, 2009.

15) Mailloux, B.; Alexandrova, E.; Keimowitz, A.; Wovkulich, K.; Freyer, G.; Herron, M.; Stolz, J.; Kenna, T.; Pichler, T.; Polizzotto, M.; Dong., H.; Bishop, M.; Knappett, P. S. K.; Microbial Mineral Weathering for Nutrient Acquisition Releases Arsenic. Applied & Environmental Microbiology, Vol. 75, No. 8, pp. 2558-2565, 2009.

16) Knappett, P. S. K.; Emelko, M.; Zhuang, J.; McKay, L. Transport and Retention of MS-2 Bacteriophage and Bacteria-Sized Microspheres in Angular Saturated Porous Media: Impact of Ionic Strength and Grain Size. Water Research, Vol. 42, No. 16, pp. 4368-4378, 2008.

17) Schirmer, K.; Knappett, P.; Schirmer, M. Waterborne Pathogens – A Brief Account of the story so far. GAIA, Vol. 11, pp. 255-258, No. 4, 2002.

Publications Under Review

Knappett, P. S. K.; Mailloux, B. J.; Choudhury, I.; *Khan, M. R.; Michael, H. A.; *Barua, S.; *Mondal, D. R.; Steckler, M. S.; Akhter, S. H.; Ahmed, K. M.; Bostick, B.; Harvey, C. F.; Shamsudduha, M.; *Mihajlov, I.; *Mozumder, R.; van Geen, A. Vulnerability of Low-Arsenic Aquifers to Municipal Pumping in Bangladesh. In Review.

Additional Information

Overpumping can taint groundwater, Texas A&M professor says

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