Charlie Humphrey

Dr. Charlie Humphrey
Dr. Charlie Humphrey
Health and Human Performance
humphreyc@ecu.edu

Research Outputs

Publications

  • Etheridge, J.R., Randolph, M., and Humphrey, C. (2018). Real time estimates of E. coli concentrations using ultraviolet-visible spectrometers. Journal of Environmental Quality. doi: 10.2134/jeq2018.08.0294
  • Humphrey, C., Sanderford, C., and Iverson, G. (2018). Concentrations and Exports of Fecal Indicator Bacteria in Watersheds with Varying Densities of Onsite Wastewater Systems. Water Air & Soil 229:277. Pollution. https://doi.org/10.1007/s11270-018-3929-4
  • Naylor, E., Humphrey, C., Kelley, T., Easter, L, and Iverson, G. (2018). Evaluation of Nitrate Concentrations and Potential Sources of Nitrate in Water Supply Wells in North Carolina. Journal of Environmental Health 80(9) 16-23.

 

Abstracts

  • Humphrey, C., Iverson, G., and O’Driscoll, M. (2019). Remediation of Onsite Wastewater System Nitrate Using Reactive Media and Natural Wetlands. Soil Science Society of America Conference, San Diego, CA.
  • Humphrey, C., Iverson, G., Skibiel, C., and O’Drisoll, M. (2019). Water Table Dynamics Beneath 3 Large Onsite Wastewater Systems in Response to Hurricane Florence. Soil Science Society of North Carolina. Raleigh, NC.
  • Humphrey, C. (2018). Site-scale and Catchment-scale Treatment of Nitrogen by Onsite Wastewater Systems in North Carolina. National Onsite Wastewater Recycling Association Conference. Minneapolis, MN.
  • Humphrey, C. (2018). Groundwater Nitrate and Land Use Study. NC Certified Crop Advisor Training. Smithfield, NC.
  • Humphrey, C. (2018). Reduction of Fecal Bacteria Concentrations by an Engineered Reactor and Natural Wetland. NC Onsite Water Protection Conference. Raleigh, NC.
  • Humphrey, C. and Iverson, G. (2018). Biochemistry of Groundwater Beneath Three Large Onsite Wastewater Treatment Systems. NC WRRI Conference, Raleigh, NC.
  • Iverson, G., Humphrey, C., Sanderford, C. (2018). Evaluation of a bioreactor to remediate nutrients in a septic-dominated watershed in the North Carolina Piedmont. NC WRRI Conference, Raleigh, NC.
  • Sanderford, C., Humphrey, C., Iverson, G.  (2018) Comparison of stream E. coli and enterococci concentrations in watersheds served by different wastewater treatment technologies. NC WRRI Conference, Raleigh, NC.

 

Conferences

  • NC WRRI
  • NC Onsite Water Protection Conference
  • NC Certified Crop Advisors Meeting
  • National Onsite Wastewater Recycling Association
  • Soil Science Society of America
  • Soil Science Society of NC

 

Research Projects

  • Humphrey, C., Pradhan, S., O’Driscoll, M., Bean, E., Manda, A., Etheridge, R., and Peralta, A. (2018-2020). Reducing Non Point Sources of Pollution and Improving Water Quality in the Lick Creek Watershed. NC DEQ ($143,050).
  • Humphrey, C. (2018-2020). Evaluation of the Treatment Efficiency of an Innovative Stormwater Control Measure. Sound Rivers ($51,500).

 

Awards

  • Humphrey, C. (2018-2019). High frequency monitoring of a stormwater control measure. NCSU ($30,000).
  • Moysey, S., Cooper, H., O’Driscoll, M., and Humphrey, C. (2018-2019). Acquisition of Critical Data for the Validation of Watershed Response Models in Easter North Carolina. NSF ($49,980).
  • Pokhrel, L., Humphrey, C., O’Driscoll, M., and Lee, J.(2018-2019). Development of performance evaluation of the next generation of nano-filters for 1,4 Dioxane removal from water and comparisons with naturally available renewable filter matrices (Luffa and woodchips). ECU Natural Resources and Environment Research Cluster Award ($14,000).

 

Research Activities

Book Chapters

  • Humphrey, C. Wastewater Disposal and Septic Systems. (2018). Pages 427-455 in: Environmental Public Health: The  Practioner’s Guide. American Public Health Association, Washington, D.C.
  • Knetchges, P., Humphrey, C., Palaschack, A. Safe Drinking Water. (2018). Pages 391-426 in: Environmental Public Health: The  Practioner’s Guide. American Public Health Association, Washington, D.C.

Research Reports

  • Humphrey, C., and Iverson, G. (2018). Evaluation of Dissolved Nutrients in Groundwater Beneath Septic Systems. Report to NC Department of Health and Human Services.
  • Humphrey, C., Iverson, G., and Sanderford, C. (2018). Lick Creek Watershed Restoration via Improved Wastewater Management. Report to NC DEQ 319 Program.

Invited Talks

  • Humphrey, C. (2018). Water Quality Improvement via Implementation of Best Management Practices for Onsite Wastewater Systems. University of Georgia, Department of Crop & Soil Science, Athens, GA.
  • Humphrey, C. (2018). Nutrient Treatment by Onsite Wastewater Systems in Coastal Plain and Piedmont Regions of North Carolina. Gwinnett County Water Department, Suwanee, GA.