Lemonds, P.J. and J.E. McCray (2007). Modeling Phosphorus Loading in an Urban Drinking Water Source Watershed. Proc. of WEFTEC 07, Water Environment Federation, San Diego, CA, October 2007.
Conn, K.E., R.L. Siegrist, L.B. Barber, and G.K. Brown (2007). Organic Contaminants in Onsite Wastewater Treatment. Eleventh National Symposium on Individual and Small Community Sewage Systems, American Society of Agricultural and Biological Engineers (ASABE), October 2007.
Geza, M. and J.E. McCray (2007). Modeling the Effect of Population Growth on Stream Nutrient Concentration in Turkey Creek Watershed using the WARMF Model. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Lindstrom, K.A., J.E. McCray, and G.D. Thyne (2007). Modeling pf Phosphorus Reactions during Wastewater Infiltration using Analytical and Numerical Modeling Techniques. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Lowe, K.S., S.M. VanCuyk, and R.L. Siegrist (2007). Soil Treatment Unit Performance as Affected by Hydraulic Loading Rate and Applied Effluent Quality. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
McKinley, J.W. and R.L. Siegrist (2007). The Occurrence of Humic Substances and Polysaccharides in Soil Treatment Units used for Wastewater Reclamation. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Parzen, R.E., J. Tomaras, and R.L. Siegrist (2007). Controlled Field Performance Evaluation of a Drip Dispersal System Used for Wastewater Reclamation in Colorado. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Siegrist, R.L. (2007). Engineering Soil Treatment Units as a Unit Operation in Onsite Wastewater Reclamation Systems. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Tomaras, J., J.W. Sahl, J.R. Spear, and R.L. Siegrist (2007). Molecular Characterization of the Microbial Community in Onsite Treatment Units. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Tucholke, M.B., J.E. McCray, G.D. Thyne, and R.M. Waskom (2007). Correlating Denitrification Rates to Soil Texture using Hierarchical Cluster Analysis. Eleventh National Symposium on Individual and Small Community Sewage Systems, ASABE, October 2007.
Tucholke, M.B., J.E. McCray, G.D. Thyne, and R.M. Waskom (2007). Variability in Denitrification Rates: Literature Review and Analysis. Proc. of the National Onsite Wastewater Recycling Association (NOWRA) 2007 Annual Technical Education Conference & Exposition.
Dimick, C.A., R.L. Siegrist, S.M. Van Cuyk, and K.S. Lowe (2006). Effects of Applied Wastewater Quality on Soil Treatment of Effluent. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Geza, M., J.E. McCray (2006). Modeling the Effect of Discharges from Septic Systems and Sewers on Stream Nutrient Loading in Turkey Creek Watershed using WARMF and SWAT. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Lowe, K.S., R.L. Siegrist, and K.N. Tackett (2006). Hydraulic Loading Rate and Infiltrative Surface Architecture Effects on Septic Tank Effluent Treatment During Soil Infiltration. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
McCray, J.E., and K.K. Heatwole (2006). Using Analytical Models for Assessment of Nitrogen Removal in the Soil Treatment Unit and Transport in Groundwater (2006). Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Rothe, N.K., and K.S. Lowe (2006). Critical Review of Raw Onsite Wastewater: Composition, Sources, and Issues. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Tomaras, J.M.B., J. McKinley, J.R. Spear, and R.L. Siegrist (2006). Examination of Microbial Characteristics of the Wastewater-Induced Soil Biozone. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Tucholke, M.B., J.E. McCray, G.D. Thyne, R.M. Waskom (2006). Variability in Denitrification Rates: Literature Review and Analysis. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Walsh, D.R., and R.L. Siegrist (2006). Effluent Quality, Hydraulic Loading Rate, and Infiltrative Surface Architecture Effects on Hydraulic Performance Using One-Dimensional Columns. Proceedings of the 15th Annual Technical Education Conference & Exposition, National Onsite Wastewater Recycling Association (NOWRA), Denver, CO, August 28-30, 2006.
Siegrist, R.L. (2005). Onsite and Decentralized Wastewater Reclamation and Reuse: Critical Approaches and Technologies for a Sustainable Infrastructure. Proc. USA-Vietnam Workshop on Water Pollution Prevention Technologies. Hanoi, November 15-18, 2005. pp. 143-154.
Albert, J.M., J.M. Marr, L. Tenorio and R.L. Siegrist (2004). Experimental and Statistical Evaluation of Bacterial Source Tracking in a Subalpine Region by rep-PCR DNA Fingerprinting. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 470-481.
Bagdol, J.L., R.L. Siegrist, and K.S. Lowe (2004). Mass Balance Modeling And Water Quality Monitoring For Impact Assessment Of Suburban Development With Onsite Wastewater Systems Compared To Urbanized Areas With Centralized Treatment Plants. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 146-155.
DeJong, K., R.L. Siegrist, L. Barber, J.E. McCray, K.S. Lowe (2004). Occurrence And Fate Of Emerging Organic Chemicals In Onsite Wastewater Systems And Implications On Water Quality Management In The Rocky Mountain Region. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 400-407.
Diaz, A.D. and R.L. Siegrist (2004). Wastewater Infiltration Rate Behavior In Porous Media As Affected By Infiltrative Surface Architecture: Methods Development & Experimental Results. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 210-222.
Lemonds, P.J. and J.E. McCray (2004). Watershed-Scale Transport Modeling Of Onsite Wastewater Pollutants In The Blue River Drainage Basin, Colorado. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 19-26.
Smith, H.L., G.D. Thyne, J.E. McCray, K.S. Lowe, J. Guelfo, and R.L. Siegrist (2004). Preliminary Evaluation of Anthropogenic Effects on Water Quality within the Blue River Watershed, Summit County, Colorado. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp.668-678.
Tackett, K.N., K.S. Lowe, R.L. Siegrist, S.M. VanCuyk (2004). Vadose Zone Treatment During Effluent Reclamation as Affected by Infiltrative Surface Architecture and Hydraulic Loading Rate. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 655-667.
Van Cuyk, S.M., J. Spear, R. Siegrist, and N. Pace (2004). Molecular Analysis Of Microbial Community Associated With Laboratory 1-D Scale Wastewater Impacted Porous Media Biofilters. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 387-399.
Weintraub, L.H.Z., C.W. Chen, R.A. Goldstein, and R.L. Siegrist (2004). WARMF: A Watershed Modeling Tool For Onsite Wastewater Systems. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 636-646.
Wren, A., R. Siegrist, and R. Laws (2004). Field Performance Evaluation Of Textile Filter Units Employed In Onsite Wastewater Treatment Systems. Proceedings of the Tenth National Symposium on Individual and Small Community Sewage Systems, ASAE, March 21-24, 2004. pp. 514-525.
Lemonds, P.J. and J.E. McCray (2003). Modeling Phosphorus Transport in the Blue River Watershed, Summit County, Colorado. Proceedings of the First Interagency Conference on Research in Watersheds, October 27-30, 2003.
Siegrist, R.L. (2003). The Role of Research in Sustaining the Future of Onsite Wastewater Systems. Proc. 12th Northwest Onsite Wastewater Treatment Shortcourse, Sept. 22-23, 2003, University of Washington, Seattle, Washington.
Siegrist, R.L., J. McCray, S. Van Cuyk, J. Bagdol, K.S. Lowe, P. Lemonds, L. Weintraub, C. Chen, R. Goldstein, and J. Rada (2003). Quantifying Site-Scale Processes & Watershed-Scale Effects of Decentralized Wastewater Systems. Proc. 12th Northwest Onsite Wastewater Treatment Shortcourse, Sept. 22-23, 2003, University of Washington, Seattle, Washington. (pdf)
Albert, J., J. Munakata-Marr, and R.L. Siegrist (2002). Using rep-PCR as a Tool to Determine the Sources of Non-Point Fecal Contamination in Drinking Water. WEFTEC, Chicago, IL, October 2002.
Van Cuyk, S., R.L. Siegrist, and R. W. Harvey (2002). Fate of Viruses During Wastewater Reclamation in Small-Scale Systems that Rely on Soil Treatment Before Groundwater Recharge. WEFTEC, Chicago, IL, October 2002.
Weintraub, L., C.W. Chen, J. Herr, R.A. Goldstein, R. Siegrist (2002). Modifications of WARMF to Assess the Efficacy of Onsite Wastewater Systems on Public Health. WEFTEC, Chicago, IL, October 2002. (pdf)
Siegrist R.L. and J.E. McCray (2002). Infiltration Rate Behavior during Wastewater Treatment in Soil Systems. Proceedings of the 11th Annual Conference and Exposition, National Onsite Wastewater Recycling Association, Inc. (NOWRA), Protecting Water Quality On Site, Kansas City, MO, September 18-21, 2002. (pdf)
McCray, J.E., P.J. Lemonds, D.N. Beach, S.L. Kirkland, K.S. Lowe, and R.L. Siegrist (2002). Modeling Fate and Transport of Wastewater Pollutants at Site and Watershed Scales. Proceedings of the 11th Annual Conference and Exposition, National Onsite Wastewater Recycling Association, Inc. (NOWRA), Protecting Water Quality On Site, Kansas City, MO, September 18-21, 2002.
McCray, J.E., K.S. Lowe, and R.L. Siegrist (2002). Science and Engineering of On-Site Wastewater Treatment Systems: An Overview of Research at CSM Presentation at the 2002 Southwest Onsite Wastewater Conference, Phoenix, AZ, March 6-8, 2002. (pdf)
Siegrist, R.L., K.S. Lowe, J. McCray, D. Beach, and S. Van Cuyk (2002). Accelerated Loading Methods to Evaluate Long-term Performance of Soil PMBs used for Wastewater Treatment. Proc. 11th On-site Wastewater Treatment Short Course. April 2002. University of Washington, Seattle, Washington. (pdf)
Siegrist, R.L. and J.E. McCray (2002). Infiltration Rate Behavior During Soil Infiltration of Wastewater Effluents. Proceedings of the NOWRA Annual Meeting, Kansas City, MO.
Lemonds, P.J., J.E. McCray, J.L. Guelfo, L.H.Z. Weintraub, K.S. Lowe, R.L. Siegrist (2002). Simulation of Septic System Pollutants in Summit County, Colorado, Using Two Watershed Water-Quality Models. Proceedings of the Twenty-Second Annual American Geophysical Union Hydrology Days, Colorado State University, Fort Collins, CO April 1-4, 2002.
Siegrist. R.L. (2002). Advancing the Science & Engineering of Decentralized Wastewater Systems through Research and Education. Keynote presentation at the 1st New England Wastewater Conference, Newport, RI, March 25-26, 2002.
Siegrist, R.L., J. McCray, S. Kirkland, R. Goldstein, C. Chen, L. Weintraub (2002). Modeling Nitrogen Transport and Fate in Decentralized Systems at the Single Site to Watershed Scales. The 1st New England Wastewater Conference, Newport, RI, March 25-26, 2002. (pdf)
Chen, C.W., L. Weintraub, R.A. Goldstein, R.L. Siegrist, and S. Kirkland (2001). Framework to Account for Onsite Wastewater Systems in Calculating Total Maximum Daily Loads. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agric. Eng., St. Joseph, MI. pp. 524-532. (pdf)
Huntzinger, D., J. McCray, R.L. Siegrist and S. Van Cuyk (2001). Mathematical Modeling of Unsaturated Flow in Wastewater Soil Absorption Systems with Clogging Zones. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agric. Eng., St. Joseph, MI. pp. 106-115. (pdf)
Logan, A.J., T.K. Stevik, R.L. Siegrist, and R. Ronn (2001). Transport and Fate of Cryptosporidium parvum in Intermittent Sand Filters during Wastewater Treatment. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agricultural Eng., St. Joseph, MI. pp. 137-146. (pdf)
McCray, J.E., S. Kirkland, D. Huntzinger, and R.L. Siegrist (2001). Quantitative Modeling Approaches for Assessing Wastewater Flow and Pollutant Transport in Porous Media. Proceedings of the 3rd NSF International Symposium and Technology Expo on Small Drinking Water and Wastewater Systems, Washington D.C. pp. 10-18.
Siegrist, R.L. (2001). Advancing the Science and Engineering of Onsite Wastewater Systems. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agric. Eng., St. Joseph, MI. pp. 1-10. (pdf)
Siegrist, R.L. and S. Van Cuyk (2001). Wastewater Soil Absorption Systems: The Performance Effects of Process Design and Environmental Conditions. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agricultural Eng., St. Joseph, MI. pp. 41-51. (pdf)
Van Cuyk, S., R.L. Siegrist, and A.J. Logan (2001). Evaluation of Virus and Microbial Purification in Wastewater Soil Absorption Systems using Multicomponent Surrogate and Tracer Additions. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agricultural Eng., St. Joseph, MI. pp.30-40. (pdf)
Van Cuyk, S. and R.L. Siegrist (2001). Pathogen Fate in Wastewater Soil Absorption Systems as affected by Effluent Quality and Soil Clogging Genesis. In: Onsite Wastewater Treatment. ASAE publ. no. 701P0101, Amer. Soc. Agricultural Eng., St. Joseph, MI. pp.125-136. (pdf)
McCray, J.E., D.N. Huntzinger, S. Van Cuyk, and R.L. Siegrist (2000). Mathematical Modeling of Unsaturated Flow and Transport in Soil-Based Wastewater Treatment Systems. Proc. 73nd Annual Exhibition and Technical Conference on Water Quality and Wastewater Treatment. Water Environment Federation, October 14-18, 2000, Anaheim, CA.
Siegrist, R.L., J. McCray, D. Huntzinger, S. Van Cuyk, and S. Kirkland (2000). Use of Modeling to Understand and Predict Wastewater Treatment for Onsite Wastewater Systems. Annual Conference of the National Onsite Wastewater Recycling Association, October 31 - November 3, 2000, Grand Rapids, MI. pp. 135-142.
Van Cuyk, S. and R.L. Siegrist (2000). Pathogen Fate in Wastewater Soil Absorption Systems as affected by Pretreatment and Soil Clogging Genesis. Proc. 73nd Annual Exhibition and Technical Conference on Water Quality and Wastewater Treatment. Water Environment Federation, October 14-18, 2000, Anaheim, CA.
Siegrist, R.L., S. Van Cuyk, A. Logan, S. Masson, and E. Fischer (1999). Hydraulic and Purification Behavior in Wastewater Soil Treatment Systems as Affected by Infiltrative Surface Character and Vadose Zone Soil Depth. Proc. Annual Conf. of the National Onsite Wastewater Recycling Association. Jekyll Island, GA. Nov. 3-6, 1999. pp. 181-189.
Van Cuyk, S., R.L. Siegrist, A. Logan, S. Masson, E. Fischer, and L. Figueroa (1999). Purification of Wastewater in Soil Treatment Systems as affected by Infiltrative Surface Character and Unsaturated Soil Depth. Proc. 72nd Annual Exhibition and Technical Conference on Water Quality and Wastewater Treatment. Water Environment Federation, October 9-13, 1999, New Orleans, Louisiana.