Publications

Ross, B. N, S. K. Wigginton*, A. H. Cox, G. W. Loomis, and J. A. Amador. 2020. Influence of season, occupancy pattern, and technology on structure and composition of nitrifying and denitrifying bacterial communities in advanced nitrogen-removal onsite wastewater treatment systems. Water 12:2413.

Ross, B. N., K. P. Hoyt, G. W. Loomis, and J. A. Amador. 2020. Effectiveness of advanced nitrogen-removal onsite wastewater treatment systems in a New England coastal community. Water, Air and Soil Pollution 231:1-10.

Ross, B. N., B. V. Lancellotti, E. Q. Brannon, G. W. Loomis, and J. A. Amador. 2020. Greenhouse gas emissions from advanced nitrogen-removal onsite wastewater treatment systems. Science of the Total Environment https://doi.org/10.1016/j.scitotenv.2020.140399

Wigginton, S. K, G. W. Loomis, and J. A. Amador. 2020. Greenhouse gas emissions from lignocellulose-amended soil treatment areas for removal of nitrogen from wastewater. Science of the Total Environment https://doi.org/10.1016/j.scitotenv.2020.140936

Wigginton, S. K., E. Q. Brannon, P. J. Kearns , B. V. Lancellotti, A. Cox, S. Moseman-Valtierra, G. W. Loomis, and J. A. Amador. 2020. Nitrifying and denitrifying microbial communities in centralized and decentralized biological nitrogen removing wastewater treatment systems. Water 12:1688.

Cox, A. H., S. K. Wigginton, and J. A. Amador. 2020. Structure of greenhouse gas-consuming microbial communities in surface soils of a nitrogen-removing experimental drainfield. Science of the Total Environment https://doi.org/10.1016/j.scitotenv.2020.140362

Cox, A. H., D. Surabian, G. W. Loomis, J. D. Turenne, and J. A. Amador. 2020. Temporal variability in the vertical separation distance of septic system drainfields along the southern Rhode Island coast. Water, Air & Soil Pollution 231, 107. https://doi.org/10.1007/s11270-020-04488-z

Cox, A. H., M. Dowling, G. W. Loomis, S. E. Engelhart, and J. A. Amador. 2020. Geospatial modeling suggests threats from stormy seas to Rhode Island’s coastal septic systems. Journal of Sustainable Water in the Built Environment 6(3) https://doi.org/10.1061/JSWBAY.0000917

Anderson, F. L., J. A. Cooper*, and J. A. Amador. 2019. Laboratory-scale evaluation of the effects of water-filled pore space on emissions of CO₂, CH₄, N2O, and N₂ from soil-based wastewater treatment. Water, Air & Soil Pollution 230:245.

Cox, A., G.W. Loomis, and J. A. Amador. 2019. Preliminary evidence that rising groundwater tables threaten coastal septic systems. Journal of Sustainable Water in the Built Environment 5: doi.org/10.1061/JSWBAY.0000887

Ross, B. N., G. W. Loomis, K. P. Hoyt, and J. A. Amador. 2018. User-based photometer analysis of effluent from advanced nitrogen-removal onsite wastewater treatment systems. Water, Air Soil Pollution 229:389.

Wigginton, S. E. Brannon, P. J. Kearns, B. Lancellotti, A. Cox, G.W. Loomis, and J.A. Amador. 2018. Nitrifying and denitrifying bacterial communities in advanced N-removal onsite wastewater treatment systems. Journal of Environmental Quality 47:1163-1171.

Amador, J.A., J.H. Gorres, B.V Lancellotti, and G. Loomis. 2018. Nitrogen loading from onsite wastewater treatment systems in the Greater Narragansett Bay (Rhode Island, USA) Watershed: Magnitude and reduction strategies. Water, Air and Soil Pollution229:65.

Brannon, E., S. Moseman-Valtierra, B. Lancellotti, S. Wigginton, J. A. Amador, J. McCaughey, and G. Loomis. 2017. Comparison of N₂O emissions and gene abundances between wastewater nitrogen removal systems. Journal of Environmental Quality 46:931-938.

Lancellotti, B.V., G. Loomis, K. Hoyt, E. Avizinis, and J.A. Amador. 2017. Evaluation of Nitrogen Concentration in Final Effluent of Advanced Nitrogen-Removal Onsite Wastewater Treatment Systems (OWTS). Water, Air & Soil Pollution 228:383-298.

Lancellotti, B. V., R. J. Bercaw, G. W. Loomis, K. P. Hoyt, E. J. Avizinis, and J. A. Amador. 2016. Accuracy of rapid tests used for analysis of advanced onsite wastewater treatment system effluent. Water, Air and Soil Pollution 227:310-322.

Cooper, J.A., G.W. Loomis, and J. A. Amador. 2016. Hell and high water: Diminished septic system performance in coastal regions due to climate change. PLoS ONE 11: e0162104. doi:10.1371/journal.pone.0162104

Cooper, J.A., I. Morales, and J.A. Amador. 2016. Mechanistic determination of nitrogen removal from soil-based onsite wastewater treatment systems using ¹⁵N. Ecological Engineering 94: 22-29.

Morales, I., J. Cooper, J. A. Amador, and T. Boving. 2016. Modeling nitrogen losses in conventional and advanced soil-based onsite wastewater treatment systems under current and changing climate conditions. PLoS ONE 11: e0158292. doi:10.1371/journal.pone.0158292

Lancellotti, B.V. 2016. Performance evaluation of advanced nitrogen removal onsite wastewater treatment systems. M.S. Thesis, University of Rhode Island, 95 pages.

Cooper, J.A. 2016. Onsite wastewater treatment systems in a changing climate: Technology robustness and mechanisms. Ph.D. Dissertation, University of Rhode Island, 152 pages.

Cooper, J. A., G. W. Loomis, D. V. Kalen, and J. A. Amador. 2015. Evaluation of water quality functions of conventional and advanced soil-based onsite wastewater treatment systems. Journal of Environmental Quality 44:953-962.

Lancellotti, B.V., G. W. Loomis, K. P. Hoyt, E. J. Avizinis, R. J. Bercaw, and J. A. Amador. 2015. Evaluation of nitrogen removal in advanced onsite wastewater treatment systems within the greater Narragansett Bay watershed. Proceedings of the 2015 NOWRA Onsite Wastewater Mega Conference, Virginia Beach, VA.

Cooper, J.A., G. W. Loomis, and J. A. Amador. 2015.Reduced water quality treatment functions of soil-based onsite wastewater treatment systems due to climate change. Proceedings of the 2015 NOWRA Onsite Wastewater Mega Conference, Virginia Beach, VA.

Morales Parra, I. 2015. Modeling onsite wastewater treatment system contaminants in current and climate changing conditions. Ph.D. Dissertation, University of Rhode Island, 154 pages.

Richard, J. T., D. A. Potts, and J. A. Amador. 2014. Mechanisms of ammonium transformation and loss in intermittently aerated leachfield soil. Journal of Environmental Quality 43:2130–2136.

Morales, I., T. B. Boving, J. A. Atoyan, and J. A. Amador. 2014.Transport of pathogen surrogates in soil treatment units: Numerical modeling. Water 6: 818-838.

Amador, J. A. 2014. Infiltration Systems and Nitrate Removal, p. 754-757. In Encyclopedia of Natural Resources. Taylor & Francis, New York, NY.

Amador, J.A., G. Loomis, and D. Kalen. 2014. Soil-Based Onsite Wastewater Treatment and the Challenges of Climate Change. Proceedings of the Soil Science Society of America Onsite Wastewater Conference, Albuquerque, NM.

Atoyan, J. A., A. M. Staroscik, D. R. Nelson, E. L. Patenaude, D. A. Potts, and J. A. Amador. 2013. Microbial community structure of a leachfield soil: Response to intermittent aeration and tetracycline additions. Water 5: 505-524.

Amador, J.A., and J. A. Atoyan. 2012.Structure and composition of leachfield bacterial communities: Role of soil texture, depth and septic tank effluent inputs. Water 4:737-749.

McCray J.E., M. Geza, K.S. Lowe, M.B. Tucholke, A. Wunsch, S. Roberts, J. Drewes, J. Amador, J. Atoyan, D. Kalen, G. Loomis, T. B. Boving, and D. Radcliffe. 2011. Quantitative tools to determine the expected performance of wastewater soil treatment units - Guidance manual, toolkit user's guide and visual-graphic tools. ISSN Online 1476-1777.

Amador, J.A., D. A. Potts, G.W. Loomis, D. V. Kalen, E. L. Patenaude, and J. H. Gorres. 2010. Improvement of hydraulic and water quality renovation functions by intermittent aeration of soil treatment areas in onsite wastewater treatment systems. Water2:886-903. doi:10.3390/w2040886

Boving, T.B., J. A. Amador, J. A. Atoyan, A. Bergstrom, D. Kalen, and G. Loomis. 2010. Simulation of microbial transport in the unsaturated zone of onsite wastewater system soil treatment units. Proceedings of the World Environmental and Water Resources Congress - ASCE, Providence, RI.

Amador, J.A., and J. Atoyan. 2010. Movement of microbial pathogen surrogates in soil treatment units (STUs). Proceedings of the World Environmental and Water Resources Congress - ASCE, Providence, RI.

Amador, J.A., D. Potts, G. Loomis, D. Kalen, E. Patenaude, and J. Gorres. 2010. Field evaluation of effects of intermittent aeration of soil treatment areas on hydraulic function, water quality and nutrient removal. Proceedings of the World Environmental and Water Resources Congress - ASCE, Providence, RI.

Amador, J. A., J. A. Atoyan, T. Boving, D. Kalen, and G. Loomis. 2009. Microorganisms.In Development of Quantitative Tools to Determine the Expected Performance of Unit processes in Wastewater Soil Treatment Units: Literature review, pp. 2-26 - 2-41. Water Environment Research Foundation, Alexandria, VA.

Patenaude, E. L., Atoyan, J. A., Potts, D. A. Potts, and J. A. Amador. 2008. Effects of tetracycline on water quality, soil and gases in aerated and unaerated leachfield mesocosms. Journal of Environmental Science and Health, Part A 43:1054-1063.

Amador, J. A., D. A. Potts, E. L. Patenaude, and J. H. Gorres. 2008. Effects of depth on domestic wastewater renovation in intermittently aerated leachfield mesocosms. ASCE Journal of Hydrologic Engineering 13: 729-734.

Potts, D.A., E.L. Patenaude, J.H. Görres, and J.A. Amador. 2008. Wastewater renovation and hydraulic performance of a low profile leaching system. Paper XIV-ITS-08-44. Proceedings of the National Onsite Wastewater Recycling Association 17th Annual Technical Education Conference & Exposition, Memphis, TN.

Richard, J. T. 2008. Fate of ammonium in aerated and conventional septic system leachfield soil using ¹⁵N tracer techniques. M.S. Thesis, University of Rhode Island, 62 pages.

Atoyan, J. A., E. L. Patenaude, D. A. Potts, J. A. Amador. 2007. Effects of tetracycline on antibiotic resistance and removal of fecal indicator bacteria in aerated and unaerated leachfield mesocosms. Journal of Environmental Science and Health, Part A 42:1571-1578.

Amador, J. A.. G. W. Loomis, D. Kalen, E. L. Patenaude, J. H. Gorres, and D. A. Potts. 2007. Evaluation of leachfield aeration technology for improvement of water quality and hydraulic functions in onside wastewater treatment systems. Final Report to the Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET), NOAA/Univ. of New Hampshire.

Amador, J. A., D. A. Potts, M. C. Savin, P. Tomlinson, J. H. Görres, and E. L. Nicosia. 2006. Mesocosm-scale evaluation of faunal and microbial communities of aerated and conventional septic system leachfield soil. Journal of Environmental Quality 35:1160-1169.

Patenaude, E. L. 2006. Effects of tetracycline on water quality in conventional and aerated septic system leachfields. M.S. Thesis, University of Rhode Island, 81 pages.

Atoyan, J. A. 2006. Effects of tetracycline on fecal indicator bacteria and microbial community structure in conventional and aerated septic system leachfield soils. M.S. Thesis, University of Rhode Island, 69 pages.

Amador, J. A., D. A. Potts, E. L. Nicosia, and J. H. Görres. 2005. Aeration to improve the water quality and hydraulic functions of septic system leachfields. Proceedings of the 13th Northwest On-Site Wastewater Treatment Short Course and Equipment Exhibition, Seattle, WA.

Potts, D. A., J. H. Görres, E. L. Nicosia, and J. A. Amador. 2004. Effects of aeration on water quality from septic system leachfields. Journal of Environmental Quality 33:1828-1838.

Funding

Impact of Sea Level Rise on Septic System Drainfields: Field Assessment and Evaluation of Vegetation-Based Mitigation Strategies. Rhode Island Agricultural Experiment Station (2016-2019) G. Loomis, and J. Amador, $113,707

Full-Scale Assessment of Non-Proprietary Passive Nitrogen Removing Septic Systems. US EPA-Southeast New England Program (2016-2020) J. Amador and G. Loomis, $181,717 (URI portion).

Charlestown Coastal Watershed Protection and Restoration Program US EPA-Southeast New England Program (2016-2020) J. Amador and G. Loomis, $303,923 (URI portion).

Alternative Nitrogen Management Strategies and Nitrous Oxide Emissions From Coastal Water Watersheds and Marshes. Rhode Island Research Alliance (2016-2017) S. Moseman-Valtierra, J. Amador, V. Craver and R. Brown, $92,944.

Reducing Nitrogen Inputs to Narragansett Bay: Optimizing the Performance of Existing Onsite Wastewater Treatment Technologies. USEPA/New England Interstate Water Pollution Control Commission (2014-2016) J. Amador and G. Loomis. $238,000.

Response of Water Quality Functions of Onsite Wastewater Treatment Systems to Climate Change: Effects and Mechanisms. Rhode Island Agricultural Experiment Station (2012-2016) J. Amador, G. Loomis, T. Boving, and D. Kalen. $143,400

Climate Change Implications for the Treatment and Function of Onsite Wastewater Treatment Systems. NOAA/RI SeaGrant Program Development Funds (2012-2013) G. Loomis, J. Amador, and D. Kalen. $10,000

Development of Quantitative Tools to Determine the Expected Performance of Unit Processes in Wastewater Soil Treatment Units. Water Environment Research Foundation (2008-2010) J. E. McCray, K. Lowe, M. Geza, J. Drewes, J. A. Amador, T. Boving, G. Loomis, D. Radcliffe and L. West. $250,000 (URI portion)

Evaluation of Leachfield Aeration Technology for Improvement of Water Quality and Hydraulic Function in Onsite Wastewater Treatment Systems. NOAA/UNH Cooperative Institute for Coastal and Estuarine Environmental Technology (2004-2007) J.A. Amador, D.A. Potts, J.H. Görres, G. Loomis, and E.L. Nicosia. $232,000

Evaluation of Mechanisms Involved in Enhanced Performance of Aerated Septic System Leachfields. Geomatrix, LLC: (2003-2004) J.A. Amador and J.H. Görres. $85,000

Talks

Innovative and Alternative Septic Systems Research Webinar - invited talks by Sara Wigginton, Bianca Ross, and Alissa Cox. Sponsored by the US EPA Southeast New England Program for Watershed Restoration (SNEP) (May 2020)

Quantifying Threats to Coastal Septic Systems Posed by Rising Groundwater Tables - invited presentation by Alissa Cox at the National Cooperative Soil Survey 2019 Conference Field Tour, Narragansett, RI (June 2019)

Onsite Wastewater Treatment Systems in Southern New England: Nitrogen Removal Performance, Greenhouse Gas Emissions and Climate Change Woes - talk by Alissa Cox, Bianca Ross and Sara Wigginton at the 6th Northeast Onsite Wastewater Treatment Short Course & Equipment Exhibition, Groton, CT (2019)

Nitrogen Loading from Onsite Wastewater Treatment Systems in the Greater Narragansett Bay Watershed: Magnitude and Reduction Strategies - talk by Jose Amador at the 6th Northeast Onsite Wastewater Treatment Short Course & Equipment Exhibition, Groton, CT (2019)

Layer Cakes and Monitoring: Approaches to Lowering N inputs From Septic Systems to Groundwater - invited talk by Jose Amador to the US EPA National. Health and Environmental Effects Research Laboratory, Narragansett, RI (2019).

Assessing Nitrogen-removal Performance of Advanced Onsite Wastewater Treatment Systems in Charlestown - invited talk by Bianca Ross to the Town of Charlestown, RI Wastewater Commission (2019).

Onsite Wastewater Treatment System (OWTS) Research at the University of Rhode Island - invited talk by Jose Amador to the Dept. of Civil, Structural and Environmental Engineering, Trinity College Dublin, Ireland (2019)

Nitrogen Loading from Onsite Wastewater Treatment Systems in the Greater Narragansett Bay (Rhode Island, USA) Watershed: Magnitude and Reduction Strategies – talk by Jose Amador at the Soil Science Society of America International Soils Meeting, San Diego, CA (2019)

Assessing Greenhouse Gas Emissions from Passive Nitrogen Removing Septic Systems – talk by Sara Wigginton at the Soil Science Society of America International Soils Meeting, , San Diego, CA (2019)

Stormy Seas Spell Doom for Coastal Septic Systems – talk by Alissa Cox at the Soil Science Society of America International Soils Meeting, San Diego, CA (2019)

Water, Water Everywhere - Drowning Coastal Septic Systems – poster by Alissa Cox at the Soil Science Society of America International Soils Meeting, San Diego, CA (2019)

Rising Groundwater Tables Threaten Coastal Septic Systems – talk by Alissa Cox, New England Estuarine Research Society, Fall 2018 meeting, New Bedford, MA (2018)

Photometer Analysis of Nitrogen in Effluent from Advanced Onsite Wastewater Treatment systems – poster presented by Bianca Ross , New England Estuarine Research Society, Fall 2018 meeting, New Bedford, MA (2018)

Coastal Storms Present Serious Threats to Septic Systems – talk by Alissa Cox at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2018)

Photometer Analysis of Nitrogen in Effluent From Advanced Onsite Wastewater Treatment Systems – talk presented by Bianca Ross at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2018)

Relationship Between nosZ Microbial Communities and Nitrous oxide Emissions in Nitrogen Removing Onsite Wastewater Treatment Systems – poster presented by Fidaa Janoudi at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2018)

Correlation Between Richness and Diversity of Genes that Code for nosZ and amoA and Performance of Advanced N-Removal Onsite Wastewater Treatment Systems – poster presented by Connor Silverman at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2018)

Assessing the Performance of Advanced N-Removal Onsite Wastewater Treatment Systems in the Charlestown Coastal Watershed: What Have Those URI Folks Been Doing?- invited talk by Jose Amador at the Annual Meeting of the Salt Ponds Coalition, Charlestown, RI (2018)

Assessing the Performance of Advanced N-Removal Onsite Wastewater Treatment Systems in the Charlestown Coastal Watershed - invited talk by Bianca Ross to the RIDEM OWTS Technical Review Committee, Providence, RI (2018)

Assessing the Performance of Advanced N-Removal Onsite Wastewater Treatment Systems in the Charlestown Coastal Watershed - invited talk by Bianca Ross at the Rhode Island Dept. of Environmental Management, Providence, RI (2018)

Out of Sight, Out of Mind: The Hidden Life of Septic Systems - invited talk by Jose Amador, Georgia Power Lecture Series at Georgia College and State University, Milledgeville, GA (2018)

Assessing Nitrogen Inputs to the Charlestown Coastal Watershed from Advanced Onsite Wastewater Treatment Systems - talk by Bianca Ross at the New England Estuarine Research Society Spring 2018 Meeting, Portsmouth, NH (2018)

Big Pipe vs. Small Pipe: A Comparison of Nitrogen Cycling Microbial Communities in a Nitrogen-Removing Wastewater Treatment Plant and in Nitrogen Removing Septic Systems - talk by Sara Wigginton at the New England Estuarine Research Society Spring 2018 Meeting, Portsmouth, NH (2018)

Historic Changes in Groundwater Table Heights along the Southern Rhode Island Coast - poster by Alissa Cox at the New England Estuarine Research Society Spring 2018 Meeting, Portsmouth, NH, 26-28 (2018)

Investigating the Effect of Microbial Communities on the Performance of Advanced Onsite Wastewater Treatment Systems - talk by Alicia Boucher at the New England Estuarine Research Society Spring 2018 Meeting, Portsmouth, NH (2018)

Nitrogen Loading From Onsite Wastewater Treatment Systems in the Greater Narragansett Bay Watershed: Magnitude and Reduction Strategies - talk by Jose Amador at the New England Estuarine Research Society Spring 2018 Meeting, Portsmouth (2018)

Observing Difference in Microbial Communities Against a Geographical Gradient - poster presented by Alicia Boucher at the University of Rhode Island Undergraduate Fellowship Celebration, CBLS Atrium, Kingston, RI (2017)

Correlations Between Ammonium and Evenness and Diversity Indices of Genes Coding for Nitrous Oxide Reductase (nosZ) and Ammonia Monooxygenase (amoA) in Advanced Onsite Wastewater Treatment Systems - poster presented by Jonathan Ludovico at the Undergraduate Fellowship Celebration, CBLS Atrium, Kingston, RI (2017)

Research Findings - University of Rhode Island’s Optimizing Performance of Existing Onsite Wastewater Treatment Project - invited talk by Jose Amador to the RI Dept. of Environmental Management Technical Review Committee (2017)

Assessing Microbial Communities of Advanced Soil Treatment Areas to Reduce Septic System Nitrogen Pollution - talk by Sara Wigginton at the 24th Biennial Conference of the Coastal and Estuarine Research Federation, Providence, RI (2017)

Assessing Nitrogen Inputs to the Charlestown Coastal Watershed from Advanced Onsite Wastewater Treatment systems - talk by Bianca Ross at the 24th Biennial Conference of the Coastal and Estuarine Research Federation, Providence, RI (2017)

Septic Systems in Coastal RI: Impacts of Sea Level Rise and Vegetation-Based Mitigation Strategies - talk by Alissa Cox at the 24th Biennial Conference of the Coastal and Estuarine Research Federation, Providence, RI (2017)

Assessing Microbial Nitrogen Removal in Advanced Soil Treatment Areas to Reduce Septic Tank Pollution in Cape Cod – talk by Sara Wigginton at the Annual Meeting of the Soil Science Society of America, Tampa, FL (2017)

Evaluating the Impacts of Sea Level Rise on Coastal Rhode Island Septic Systems and the Effectiveness of Vegetation-Based Mitigation Strategies – talk by Alissa Cox at the Annual Meeting of the Soil Science Society of America, Tampa, FL (2017)

Acute and Long-Term Impacts of Climate Change on the Microbial Community Structure within the Soil Treatment Area of Coastal Septic Systems – talk by Jennifer Cooper at the Annual Meeting of the Soil Science Society of America, Tampa, FL (2017)

Changes in Groundwater Tables Along the Southern Rhode Island Coast: Implications for Onsite Wastewater Treatment Systems - talk by Alissa Cox at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2017)

Assessing Nitrogen Inputs to the Charlestown Coastal Watershed From Advanced Onsite Wastewater Treatment Systems talk by Bianca Ross at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2017)

Big Pipe vs. Small Pipe: A Comparison of Nitrogen Cycling Microbial Communities in Rhodes Island Sewer and Septic Tanks - talk by Sara Wigginton at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2017)

Observing Difference in Microbial Communities agains a Geographical Gradient - poster presented by Alicia Boucher at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2017)

Correlations between Ammonium and Evenness and Diversity Indices of Genes Coding for Nitrous Oxide Reductase (nosZ) and Ammonia Monooxygenase (amoA) in Advanced Onsite Wastewater Treatment Systems - poster presented by Jonathan Ludovico at the North East Graduate Student Water Symposium, Univ. of Massachusetts, Amherst, MA (2017)

Coastal OWTS — Effects of Sea Level Rise and Efficacy of Plant-Based Mitigation Strategies - talk by Alissa Cox at the Northeast Agricultural and Biological Engineering Conference (NABEC) in Groton, CT (2017)

Advanced OWTS — Nitrogen Removal From Wastewater in the Charlestown, Rhode Island Coastal Watershed - talk by Bianca Ross at the Northeast Agricultural and Biological Engineering Conference (NABEC) in Groton, CT (2017)

Full-Scale Assessment of Non-Proprietary Passive Nitrogen Removing Septic Systems - talk by Sara Wigginton at the Northeast Agricultural and Biological Engineering Conference (NABEC) in Groton, CT (2017)

Concentration of Genes Coding for Nitrous Oxide Reductase (nosZ) and Ammonia Monooxygenase (amoA) in Advanced N-Removal Onsite Wastewater Treatment Systems - invited poster by Sara K. Wigginton at the Water Environment Federation Workshop, Hyatt Regency Hotel, Ft. Lauderdale, FL (2017)

Gone With the Wind: Rethinking How Water-Filled Pore Space Affects Gaseous Nitrogen Production in Soil-Based Wastewater Treatment - invited talk by Jose Amador at the Water Environment Federation Workshop, Hyatt Regency Hotel, Ft. Lauderdale, FL (2017)

Assessing a Cost Effective Solution to Septic System Nitrogen Pollution in Cape Cod - seminar by Sara Wigginton, BES Graduate Seminar Series, Coastal Institute-Kingston, University of Rhode Island, Kingston, RI (2017)

Septic Systems in Coastal RI: Impacts of Sea Level Rise and Vegetation-Based Mitigation Strategies - seminar by Alissa Cox, BES Graduate Seminar Series, Coastal Institute-Kingston, University of Rhode Island, Kingston, RI (2017)

OWTS in the Greater Narragansett Bay Watershed: Performance and Nitrogen Loading - invited talk by Jose Amador, Narragansett Bay Estuary Program, Providence, RI (2017)

Nitrous Oxide fluxes and Nitrifier and Denitrifier Gene Abundance from Nitrogen Removal Tanksin Centralized and Advanced Onsite Wastewater Treatment Systems - talk presented by Elizabeth Brannon (collaborator) at the Spring Meeting of the New England Estuarine Research Society (NEERS), Groton, CT (2017)

Preliminary Assessment of Greenhouse Gas Emissions From Advanced Nitrogen Removing Onsite Wastewater Treatment Systems - poster presented by Gina Celeste at the URI Coastal Felllows Poster Presentation, Center for Biotechnology and Life Sciences, Kingston, RI (2016)

Impacts of Nitrogen Removal and Re-Application on N₂O Fluxes From Narragansett Bay: Contrasting Turfgrasses, Salt Marshes, and Wastewater Treatment Systems - talk presented by Elizabeth Brannon at the 2016 AGU Annual Fall Meeting, San Francisco, CA (2016)

Gone With the Wind: Rethinking How Water-Filled Pore Space Affects Gaseous Nitrogen Production in Soil-Based Wastewater Treatment - poster presented by Jose Amador at the Annual Meeting of the Soil Science Society of America, Phoenix, AZ (2016)

Accuracy of Rapid Field Testing of Advanced Onsite Wastewater Treatment System Effluent - poster presented by Brittany Lancellotti at the Annual Meeting of the Soil Science Society of America, Phoenix, AZ (2016)

Changes in Greenhouse Gas Emissions from Onsite Wastewater Treatment Systems Due to Climate Change - poster presented by Jennifer Cooper at the Annual Meeting of the Soil Science Society of America, Phoenix, AZ (November 2016)

Greenhouse Gas Fluxes From Nitrogen Removal at Centralized and Decentralized Wastewater Treatment Systems - talk presented by Liz Brannon and Brittany Lancellotti at the New England Estuarine Research Society, Block Island, RI (October 2016)

Optimizing Nitrogen Removal in Advanced Onsite Wastewater Treatment Systems within the Greater Narragansett Bay Watershed - thesis defense talk presented by Brittany Lancellotti, University of Rhode Island, Kingston, RI (October 2016)

Optimizing Nitrogen Removal in Advanced Onsite Wastewater Treatment Systems within the Greater Narragansett Bay Watershed - invited talk presented by Brittany Lancellotti at the 54th Annual Yankee Conference on Environmental Health, Mystic, CT (2016)

Evaluation of Advanced Nitrogen Removal Onsite Wastewater Treatment Systems Within the Greater Narragansett Bay Watershed - webinar presented by Brittany Lancellotti as part of the New England Interstate Water Pollution Control Commission Research Webinar Series (2016)

Fighting the Rising Tide: Diminished Septic System Performance Under Climate Change -invited talk by Jennifer Cooper at the US EPA Region 1 Office, Boston, MA (2016)

Fighting the Rising Tide: Diminished Septic System Performance Under Climate Change - talk by Jennifer Cooper at the 5th Northeast Onsite Wastewater Treatment Short Course and Equipment Exhibition, Taunton, MA (2016)

Evaluation of Advanced Nitrogen Removal OWTS Within the Greater Narragansett Bay Watershed - talk presented by Brittany Lancellotti at the 5th Northeast Onsite Wastewater Treatment Short Course and Equipment Exhibition, Taunton, MA (2016)

Accuracy of Rapid Field Testing of Advanced Onsite Wastewater Treatment System Effluent - talk presented by Jose Amador at the 5th Northeast Onsite Wastewater Treatment Short Course and Equipment Exhibition, Taunton, MA (2016)

Gone with the Wind: Moisture Effects on Nitrogen Removal in Soil Receiving Wastewater - talk presented by Faith Anderson at the 5th Northeast Onsite Wastewater Treatment Short Course and Equipment Exhibition, Taunton, MA (2016)

Onsite Wastewater Treatment Systems in a Changing Climate: Technology Robustness and Mechanisms - dissertation defense seminar presented by Jennifer Cooper, Dept. of Natural Resources Science, University of Rhode Island, Kingston, RI (2016)

Modeling Nitrogen Losses in Conventional and Advanced Soil-Based Onsite Wastewater Treatment Systems - poster presented by Ivan Morales at the AWWA 2016 Sustainable Water Management Conference, Providence, RI (2016)

Evaluation of Nitrogen Removal by Advanced Onsite Wastewater Treatment Systems Within the Greater Narragansett Bay Watershed - talk presented by Brittany Lancellotti, Dept. of Natural Resources Science Graduate Seminar, University of Rhode Island, Kingston, RI (2016)

Evaluation of Nitrogen Removal by Advanced Onsite Wastewater Treatment Systems Within the Greater Narragansett Bay Watershed - invited talk presented by Brittany Lancellotti to the Office of Water Resources, Rhode Island Dept. of Environmental Management, Providence, RI (2016)

Diminished Septic System Performance Under Climate Change - invited talk by Jennifer Cooper to the Onsite Wastewater Treatment System Technical Review Committee, Rhode Island Dept. of Environmental Management, North Kingstown, RI (2016)

Diminished Septic System Performance Under Climate Change - invited talk by Jennifer Cooper to the Office of Water Resources, Rhode Island Dept. of Environmental Management, Providence, RI (2016)

Potential Impact of a Changing Climate on Septic Systems - invited talk by Jennifer Cooper at the 3^rdAnnual Cape Coastal Conference, Hyannis, MA (2015)

Diminished Wastewater Treatment: Evaluation of Septic System Performance Under a Climate Change Scenario - poster presented by Jennifer Cooper at the 2015 Fall Meeting of the American Geophysical Uniton, San Francisco, CA (2015)

Gone with the Wind: Moisture Effects on Nitrogen Removal in Soil Receiving Wastewater - poster presented by Faith Anderson at the Universit of Rhode Island Coastal Felllows Poster Presentation, Kingston, RI (2015)

Changes in Water Quality Treatment Functions of Soil-Based Onsite Wastewater Treatment Systems Due to Climate Change - talk presented by Jennifer Cooper at the Annual Meeting of the Soil Science Society of America, Minneapolis, MN (2015)

A Model to Predict Nitrogen Losses in Advanced Soil-­Based Wwastewater Treatment Systems - poster presented by Ivan Morales at the Annual Meeting of the Soil Science Society of America, Minneapolis, MN (2015)

Evaluation of Nitrogen Removal by Advanced Onsite Wastewater Treatment Systems Within the Greater Narragansett Bay Watershed - talk presented by Brittany Lancellotti at the 2015 NOWRA Onsite Wastewater Mega Conference, Virginia Beach, VA (2015)

Reduced Water Quality Treatment Functions of Soil-Based Onsite Wastewater Treatment System Due to Climate Change - talk presented by Jennifer Cooper at the 2015 NOWRA Onsite Wastewater Mega Conference, Virginia Beach, VA (2015)

Gone with the Wind: Moisture Effects on Nitrogen Removal in Soil Receiving Wastewater - poster presented by Faith Anderson at the 2015 New England Graduate Student Water Symposium, Univ. of Massachusetts, Amerst, MA (2015)

Accuracy of Field Testing for Advanced Onsite Wastewater Treatment System Effluent - poster presented by Brittany Lancellotti and Robert Bercaw at the 2015 New England Graduate Student Water Symposium, Univ. of Massachusetts, Amerst, MA (2015)

Diminished Wastewater Treatment: Evaluation of Septic System Performance Under a Climate Change Scenario - talk presented by Jennifer Cooper at the 2015 New England Graduate Student Water Symposium, Univ. of Massachusetts, Amerst, MA (2015)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2015)

Impacts of Climate Change on Septic Systems - invited talk given by Jen Cooper for the Coastal State Discussion Series, RI Sea Grant, Narragansett, RI (2015)

Optimizing Nitrogen Removal in Advanced Onsite Wastewater Treatment Systems within the Narragansett Bay Watershed - talk presented by Brittany Lancellotti at the University of Rhode Island Graduate Seminar in Natural Resources Science, Kingston, RI (2015)

Mechanistic Determination of Nitrogen Removal By Advanced Soil-Based Wastewater Treatment Systems Using ¹⁵N Isotopes - poster presented by Jennifer Cooper at the Fall Meeting of the American Geophysical Union, San Francisco, CA (2014)

Model to Predict Nitrogen Losses in Advanced Soil-Based Wastewater Treatment Systems - poster presented by Ivan Morales at the Fall Meeting of the American Geophysical Union, San Francisco, CA (2014)

Mechanisms of Ammonium Transformation and Loss in Intermittently Aerated Leachfield Soil - poster presented by Jose Amador at the Soil Science Society of America Annual Meeting, Long Beach, CA (2014)

Mechanistic Determination of Nitrogen Removal By Advanced Soil-Based Wastewater Treatment Systems Using ¹⁵N Isotopes - talk presented by Jennifer Cooper at the Soil Science Society of America Annual Meeting, Long Beach, CA (2014)

Beyond the Throne: Biogeochemistry and Microbial Ecology of Soil-Based Wastewater Treatment - invited seminar presented by Jose Amador, IGERT in Cross-Scale Biogeochemistry and Climate Change, Cornell University, Ithaca, NY (2014)

Onsite Systems, Soils, and Climate Change - invited seminar presented by Jen Cooper, Society of Soil Scientists of Southern New England Recent Advances Workshop, West Greenwich, RI (2014)

EPA Decentralized MOU: Climate Change Impacts for Onsite Systems - webinar presented by George Loomis, Jose Amador, David Kalen and Jennifer Cooper (2014)

Soil-Based Onsite Wastewater Treatment and the Challenges of Climate Change - invited keynote talk by Jose Amador (G. Loomis & D. Kalen, co-authors) at the Soil Science Society of America Onsite Wastewater Conference, Albuquerque, NM (2014)

Evaluation Of Water Quality Renovation By Advanced Soil‐Based Wastewater Treatment Systems - talk by Jen Cooper (G. Loomis, D. Kalen, T. Boving, I. Morales, J. DeLuca, and J. A. Amador, co-authors) at the Soil Science Society of America Onsite Wastewater Conference, Albuquerque, NM (2014)

The Tide is High But I'm Holding On: OWTS in a Changing Climate – invited talk given by Jose Amador as part of a workshop on Rhode Island Regulatory Setbacks and Buffers for OWTS Design and Siting, New England Onsite Wastewater Training Program, University of Rhode Island, Kingston, RI (2013)

Onsite Wastewater Treatment Systems (OWTS): Conventional vs. Advanced Technologies - talk presented by Jennifer Cooper at the ASA, CSSA and SSSA International Annual Meetings, Tampa, FL (2013)

Design, Assessment, and Management of Onsite Wastewater Treatment Systems: Addressing the Challenges of Climate Change - poster presented by George Loomis and Jose Amador at the ASA, CSSA and SSSA International Annual Meetings, Tampa, FL (2013)

The Tide is High But I'm Holding On: OWTS in a Changing Climate - invited talk presented by Jose Amador at the 51st Annual Yankee Conference on Environmental Health, Smithfield, RI (2013)

Onsite Wastewater Treatment Systems in a Changing Climate - invited talk presented by Jose Amador at the State Agency Sea Level Rise Inundation Mapping and Modeling Coordination Meeting, Coastal Resources Management Council, Providence, RI (2013)

Climate Change and Onsite Wastewater Treatment Systems: We’ve Got to Talk… – invited talk given by Jose Amador as part of a workshop on Rhode Island Regulatory Setbacks and Buffers for OWTS Design and Siting, New England Onsite Wastewater Training Program, University of Rhode Island, Kingston, RI (2012)

Climate Change and Onsite Wastewater Treatment Systems: We’ve Got to Talk… – invited talk given by Jose Amador at 50th Annual Yankee Conference on Environmental Health, Groton, CT (2012)

Microbiology and Ecology of the Biomat - invited talk given by Jose Amador at the 50th Annual Yankee Conference on Environmental Health, Groton, CT (2012)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2012)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2011)

Molecular Microbial Ecology of OWTS – talk presented by Jose Amador at the Multistate Project NE 1045 Meeting Design, Assessment, and Management of Onsite Wastewater Treatment Systems: Addressing the Challenges of Climate Change, Beltsville, MD (2011)

The Biomat: Friend or Foe of Pathogens? – invited talk presented by Jose Amador at the Pennsylvania Decentralized Wastewater Conference & Trade Show, Lancaster, PA (2010)

Microbiology and Ecology of the Biomat – invited talk presented by Jose Amador at the Pennsylvania Decentralized Wastewater Conference & Trade Show, Lancaster, PA (2010)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2010)

Movement of Microbial Pathogen Surrogates in Soil Treatment Units (STUs) – talk presented by Jose Amador at the World Environmental and Water Resources Congress–ASCE, Providence, RI (2010)

Field Evaluation of Effects of Intermittent Aeration of Soil Treatment Areas on Hydraulic Function, Water Quality and Nutrient Removal – talk presented by D. Potts at the World Environmental and Water Resources Congress–ASCE, Providence, RI (2010)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the Yankee OnSite Wastewater Recycling Association, Waterbury, VT (2010)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2009)

Ecology and Biogeochemistry of Soil-based Wastewater Treatment Systems – invited talk presented by Jose Amador at the Dept. of Environmental Engineering Seminar Series, University of Connecticut, Storrs, CT (2009)

Microbiology for Wastewater Professionals – short course presented by Jose Amador for the New England Onsite Wastewater Training Program, Univ. of Rhode Island, Kingston, RI (2008)

Ecology & Biogeochemistry of Wastewater Absorption Trenches – invited talk presented by Jose Amador at the Graduate Seminar Series, Dept. of Agronomy & Soils, University of Puerto Rico-Mayaguez, PR (2007)

Cleaning Wastewater With Dirt – invited talk presented by Jose Amador at Earth Camp, W. Alton Jones Campus, West Greenwich, RI (2006)

Fate of Ammonium in Aerated and Conventional Septic System Leachfield Soil Using Stable Nitrogen Isotope Tracer techniques - poster presented by John Richard at the ASA-CSSA-SSSA International Annual Meetings, Salt Lake City, UT (2005)

The Fate of Tetracycline in Conventional and Aerated Septic System Leachfield Soils - poster presented by Erika Nicosia at the ASA-CSSA-SSSA International Annual Meetings, Salt Lake City, UT (2005)

The effects of tetracycline on the microbial community of conventional and aerated leachfield soils - poster presented by Janet Atoyan at the ASA-CSSA-SSSA International Annual Meetings, Salt Lake City, UT (2005)

Leachfield Aeration Technology: Improvement of Water Quality and Hydraulic Functions in Onsite Wastewater Treatment Systems – invited talk presented by Jose Amador at the Coastal Decision-Maker Workshop, Waquoit Bay National Estuarine Research Reserve, East Falmouth, MA (2005)

Aeration to Improve the Water Quality and Hydraulic Functions of Septic System Leachfields – invited talk presented by Jose Amador at the13^th Northwest On-Site Wastewater Treatment Short Course and Equipment Exhibition, Univ. of Washington, Seattle, WA (2005)

Water Quality and Ecology in Septic System Leachfield Soils: Effects of Aeration – invited talk presented at the Annual Meeting of the Pennsylvania Onsite Wastewater Recycling Association, Harrisburg, PA (2004)

Leachfield bacterial community structure as affected by aeration in septic tank effluent treatment - poster presented by Jose Amador at the ASA-CSSA-SSSA International Annual Meetings, Seattle, WA (2004)

Wastewater Renovation and Hydraulic Performance in Intermittently Aerated Leachfields. Poster presented by Jose Amador at the Annual National Onsite Wastewater Recycling Association Technical Education Conference, Milwaukee, WI (2008)

Microbiological and Chemical Properties of Aerated and Conventional Leachfield Soil - poster presented by Jose Amador at the ASA-CSSA-SSSA International Annual Meetings, Seattle, WA (2004)