| IWA Africa – EPA expertise |
| Office of Research and Development / National Risk Management Research Laboratory / Water Supply and Water Resources Division |
| Name |
Title |
Expertise/Skills |
Advisory request Category |
| Adams, Jeffrey |
Environmental Engineer |
Serves as the EPA manager of the Drinking Water Systems Center under the Environmental Technology Verification (ETV) Program. Manage performance and cost evaluations of water treatment technologies, including microfiltration, ultrafiltration, nanofiltration, reverse osmosis, granular activated carbon (GAC), arsenic adsorptive media, ozone, UV, package disinfection systems, air stripping, and conventional chemical and filtration processes. In partnership with the National Homeland Security Research Center, managed studies involving the treatment of drinking water with package systems, Point-of-use and Point-of-entry systems for control of microbiological and chemical agents, and monitoring of water distribution systems. |
Treatment
- Monitoring and
Control |
| Allen, Hubert Joel |
Environmental Scientist |
Multiple-Use Water Quality Biomonitor Research for Watershed Management/Early Warning Systems. Toxicity of Nanoparticles to Aquatic Organisms; Toxicity of Thyroid Active Compounds. |
Treatment
- Monitoring and
Control
|
| Best, Elly |
Ecologist |
Research interests focusing on environmental assessment, management, remediation and restoration. Over 140 publications in the open literature on nutrient/contaminant transport, fate and effects (ecotoxicology) with respect to biota; aquatic and terrestrial habitat/ ecosystem ecology, management and restoration; ecological modeling; and the inherent research application areas (risk assessment and management). Currently conducting research on green infrastructure and ecosystem services in relation to sustainable integrated water management in a changing climate. |
Catchment
- Alternative
Sources
- Surface Water |
| Boczek, Laura |
Microbiologist |
The effectiveness of conventional drinking water disinfection regimes on human pathogens, utilizing classical microbiological techniques coupled with molecular biology. |
Treatment
- Monitoring and
Control |
| Borst, Michael |
Chemical Engineer |
Quantitative assessments of BMP performance for urban stormwater management. |
Catchment
- Surface Water |
| Brown, Donald S |
Environmental Engineer |
Experimental Stream Facility, watershed management, wastewater treatment, decentralized wastewater treatment, constructed wetlands. |
Catchment
- Surface Water |
| Dugan, Nicholas |
Environmental Engineer |
Impact of temperature on the performance of anaerobic biological perchlorate treatment; Effluent polishing for anaerobic biological contactors used in drinking water treatment; Removal of pesticides through anaerobic and aerobic biological treatment; Simultaneous evaluation of Cryptosporidium, virus, and surrogate removal through pilot-scale conventional treatment. |
Treatment
- Multi-Barrier/
Treatment
Processes |
| Elovitz, Michael |
Environmental Engineer |
Primary research interest in the area of environmental redox chemistry and chemical reaction kinetics. Current research projects are focusing on the elucidation and modeling of chemical disinfection processes as they relate to drinking water treatment. Other research interests include chemical transformations of aquatic constituents in the watershed-based aqueous continuum. |
Treatment
- Multi-Barrier/
Treatment
Processes
- Raw Water
Monitoring
|
| Goodrich, James |
Senior Environmental Scientist |
Water resource adaptation to global change, the water and energy nexus, small community drinking water and wastewater needs, watershed protection and restoration, remote monitoring/control of raw and finished water supplies, and international drinking water treatment technology demonstrations. Development of holistic adaptive water resource management tools and techniques for climate, land use, population, and economic change. Past research efforts have focused on innovative drinking water treatment technologies for small systems focused on Cryptosporidium removal and destruction utilizing bag and cartridge filtration, ultrafiltration membranes, on-site chlorine generators, and new electro-technology techniques. Distribution system water quality research activities have focused on designing and managing field studies collecting real-time water quality and flow data. Watershed activities are focused on biological monitoring using sentinel species, early warning systems, spill modeling, source water protection, and ecosystem restoration. |
Catchment
- Alternative
Sources
- Climate Risks
- Management
Plans |
| Haught, Roy |
Environmental Scientist |
Interest includes small treatment system technology evaluations as well as developing and evaluating monitoring and sensor technology associated to water quality, source water protection, and early warning detection of contaminants in various water supplies. Skills include over 20 years of diversified, professional, project management, supervision and hands-on experience in the design, fabrication, testing, and evaluation of various research and development (R&D) innovative technologies. |
Catchment
- Management
Plans
- Warning systems
Consumer
- Vulnerable
consumers |
| Hayes, Samuel |
Supervisory Physical Scientist
(Associate DivisionDirector) |
Ultraviolet (UV) disinfection research on waterborne bacteria, viruses and protozoa. Research into host-pathogen interactions of waterborne bacteria using DNA microarray technology. Procedures used in research include bacterial cultural assays and molecular techniques (PCR, microarrays, DNA sequencing, etc.). |
Treatment
- Multi-Barrier/
Treatment
Processes |
| Impellitteri, Christopher |
Supervisory Environmental Engineer (Branch Chief) |
Speciation, sorption, and desorption of inorganic and organometallic contaminants on solids. Development of innovative media for water treatment. Assessment of cutting-edge technologies for use in water treatment. Research in assessment and management of risk from contaminants in source waters, sediments, waste materials and soils. |
Catchment
- Surface Water
- Groundwater
- Treated Water
Quality Targets |
| Kelty, Keith |
Chemist |
Interests include the control of contaminants in drinking water, specifically inorganics, trace metals, disinfection by-products, pesticides and herbicides. Skills include laboratory operations, database management, analytical instrumentation and method development. |
Treatment
- Monitoring and
Control |
| Latham, Michelle |
Biologist
(Technical Communications) |
Technical communications encompassing drinking water, water resources, and wastewater research areas.
Outside of Agency: Behavioral, vocalization, and acoustical studies of captive Florida manatees involving the use of specialized digital recording and wave form generating equipment, transducers, dive equipment, and dry and underwater video equipment; Transfusion medicine (Immunohematology), including complex antibody identification; Clinical Microbiology; Hematology. |
Initial Contact
person |
| Lytle, Darren |
Environmental Engineer (Acting Branch Chief) |
Evaluation of the impact of basic water quality variables (pH, DIC, sulfate, etc.) on copper, lead and iron particles and corrosion; Evaluate and document nitrification in drinking water distribution systems; Evaluation of microbiological treatment for ammonia oxidation; Explore the accumulation of contaminants in drinking water distribution systems; Determine the mechanism(s) of iron corrosion control, and red and black water control; Explore the use of zeta potential measurements for assessing and optimizing water treatment performance and understanding treatment mechanisms; Examine the impact of water chemistry on localized corrosion of copper. |
Consumer
- Domestic
Buildings
Distribution
- Corrosion
Treatment
- Multi-Barrier/
Treatment
Processes
- Treated Water
Quality Targets |
| Mash, Heath |
Chemist |
Endocrine Disrupting Compounds (EDCs); Dissolved Organic Nitrogen In Drinking Water Supplies; Hypochlorite oxidation of select androgenic steroids. |
Treatment
- Raw Water
Monitoring |
| Meckes, Mark |
Microbiologist |
Current and previous research includes work on detection and quantification of pathogenic bacteria and indicator organisms in wastewater, evaluation of treatment systems for reduction of microorganisms within municipal sludges, and the effectiveness of wastewater disinfection processes. |
Treatment
- Monitoring and Control
- Multi Barrier/
Treatment
Process
- Treated Water
Quality Targets
|
| Miltner, Richard |
Environmental Engineer |
Interests include the control of contaminants in drinking water, specifically pesticides, disinfection by-products and microbes. Skills include pilot-scale treatment of water to control these contaminants, specifically coagulation and filtration, adsorption, precipitative softening, oxidation by chlorine, chloramine, chlorine dioxide, ozone and permanganate, and biofiltration. |
Treatment
- Multi-Barrier/
Treatment
Processes
|
| Murray, Daniel |
Senior Environmental Engineer |
Provides expert advice to senior management on technical issues relating to aging water infrastructure, urban watershed management, water quality management programs, and sustainable water resources; Lead the development and implementation of EPA's Aging Water Infrastructure Research Program. |
Catchment
- Management
plans
- Surface water
Distribution
- Maintenance
and repairs
|
| Namboodiri,Vasudevan |
Chemist |
Water analysis; water purification; organic, inorganic and polymer synthesis and characterization; polymer and composite materials membrane development; Membrane separation (Pervaporation/gas separation); Biofuels: separation and purification; preparation and applications of ionic liquids; zeolite synthesis (nano particles); microwave heating in organic syntheses; solvent-free organic syntheses. |
Treatment
- Treatment
processes |
| Nietch, Christopher |
Ecologist |
Test and evaluate novel strategies for watershed management in mixed lands with emphasis on understanding carbon, nutrient, and related contaminant biogeochemical processes as primary functional respondents to change. Through controlled meso-scale experiments coupled with watershed monitoring develop linked ecologic and hydrologic models for better water quantity and quality management. Key words include: mesocosms, WQ2 dynamic simulation, monitoring techniques, stormwater management/green infrastructure applications, effectiveness determination, source water protection, systems theory, watersheds, and decision support/advanced analytical data architectures. |
Catchment
- Surface Water
Treatment
- Raw Water
Monitoring |
| Olszewski, John |
Microbiologist
(Quality Assurance Manager) |
Areas of expertise include virus cell culture, nucleic acid and protein recovery, nucleic acid amplification, characterization of genetic variation, water filtration technologies, immunological detection methods, and microbial culture and detection strategies. Recovery of high quality, non-degraded nucleic acids from water, sediment, blood, soft tissue, plants, and microorganisms among others. Extensive experience with nucleic acid amplification technologies including high throughput PCR, real-time PCR, and multiplex PCR; Characterizing the extraction efficiency of commercial RNA extraction kits for the detection of viruses in environmental waters. |
Treatment
- Monitoring and
Control
- Raw Water
Monitoring
- Site Security
- Treated Water
Quality Targets |
| Patterson, Craig |
Environmental Engineer |
Small drinking water treatment technologies (filtration, point-of-entry/point-of-use, adsorptive media, activated carbon, water reuse, advanced oxidation processes, disinfection), drinking water contaminants (e.g., Cryptosporidium, MTBE, lead), distribution systems, remote monitoring and control, renewable energy, environmental remediation, regulatory compliance, and computer programming. |
Treatment
- Multibarrier/
Treatment
Processes
- Treatment
Chemicals |
| Pressman, Jonathan |
Environmental Engineer |
Research interests include characterizing natural organic matter in drinking water sources with particular emphasis on disinfection byproduct formation, membrane processes for both drinking water treatment and natural organic matter concentration, and nitrification in drinking water distribution systems. Nitrification research includes special interests in molecular genetics and microbiological engineering. |
Distribution
- Distribution
Network
Modeling
- Treated Water
Storage
Treatment
- Multi-Barrier/
Treatment
Processes |
| Rodgers, Mark |
Supervisory Microbiologist
(Branch Chief) |
Detection and identification of pathogenic bacteria in potable waters; molecular characterization of virulence of waterborne pathogens; drinking water disinfection; drinking water laboratory certification and technology transfer. |
Treatment
- Raw Water
Monitoring |
| Rossman, Lewis |
Environmental Scientist |
Modeling of drinking water distribution systems and modeling of urban runoff and drainage systems. |
Distribution
- Distribution
Network
Modeling
- Distribution
Network
Design |
| Royer, Michael |
Physical Scientist |
Water infrastructure issues, especially structural integrity; project management. |
Distribution
- Network
Materials
- Maintenance
and Repairs
- Pumping Stations |
| Santo Domingo, Jorge |
Microbiologist |
Use of molecular technologies to study the ecology of microbial communities in drinking water and ground waters. Develop assays using host-specific genetic markers for fecal source identification. |
Catchment
- Surface Water
Distribution
- Source Change
Treatment
- Raw Water
Monitoring |
| Schenck, Kathleen |
Environmental Scientist |
Investigations of the ability of drinking water treatment technologies to remove organic contaminants, such as endocrine disrupting chemicals, from source waters; the use of bioassays to evaluate the removal of endocrine disrupting chemicals /hormonal activity from water samples following treatment processes; the production of and/or the removal of mutagenic compounds by drinking water treatment processes and the concentration of mutagenic compounds from drinking waters. |
Treatment
- Multibarrier/
Treatment
Processes |
| Schock, Michael |
Chemist |
Research interests include: equilibrium chemistry and transport of corrosion byproduct metals, regulated inorganic contaminants and inorganic contaminants of the future in drinking water; corrosion of water distribution system materials; analytical methodologies for corrosion scale and drinking water solids analysis; inorganic anion analysis, analytical and equilibrium of the carbonate system; holistic integration of water treatment processes to meet simultaneous regulatory compliance goals; geochemical and chemical modeling of drinking and natural water systems; development and application of “green” plumbing standards to maintaining building water quality. |
Consumer
- Domestic
Buildings
- Plumbing,
Materials,
and Fittings
Distribution
- Corrosion
- Distribution
Network
Materials
Treatment
- Multi-Barrier/
Treatment
Processes
- Treated Water
Quality Targets
- Treatment
Chemicals |
| Selvakumar, Ariamalar |
Environmental Engineer |
Rehabilitation of water and wastewater infrastructure systems; urban stormwater runoff characterization; watershed management; BMP effectiveness and cost. |
Distribution
- Network
Materials
- Maintenance
and Repairs
- Pumping
Stations |
| Shanks, Orin |
Geneticist |
Development of quantitative real-time PCR methods for the detection of host-associated genetic markers, and characterizing microbial community structures in environmental samples using next generation sequencing. |
Catchment
- Surface Water
Treatment
- Raw Water
Monitoring |
| Simon, Michelle |
Chemical Engineer
(Branch Chief) |
Experienced in wastewater system design, construction, and operation. Expert in in-situ land remediation technologies (Soil Vapor Extraction, Bioventing, Bioremediation, Chemical Oxidation, Air Sparging, and Groundwater Circulation Wells) ; Provided technical support for 110 contaminated sites for twenty years ; Primary EPA researcher for the multinational Source Area Bioremediation Project (SABRe). |
Catchment
- Groundwater |
| Sivaganesan, Manohari |
Statistician |
Statistical modeling (Bayesian and traditional approaches) for inactivation studies and estimating water quality parameters. |
Treatment
- Treated Water
Quality Targets |
| Sorg, Thomas |
Environmental Engineer |
Special emphasis of research work on drinking water treatment technology for the removal of inorganic and radionuclide contaminants from water supplies, including the removal of arsenic. During the past 11 years, research has focused on treatment technology to remove arsenic from drinking water in support of the revised arsenic MCL of 10 ug/L that included that Agency’s arsenic demonstration program consisting of 50 field projects. Provided expert witness testimony for the Federal Trade Commission and Post Office Department on federal cases involving the marking of point of use treatment systems. |
Treatment
- Multi-Barrier/
Treatment
Processes
- Treated Water
Quality Targets
- Treatment
Chemicals |
| Speth, Thomas |
Supervisory Environmental Engineer
(Acting Division Director) |
Removal of organic contaminants from drinking water, and work with microbial and inorganic contaminants. Technology expertise includes activated carbon, high-pressure membranes, low-pressure membranes, and air stripping; oxidation, conventional treatment, riverbank filtration, and softening (ion exchange and lime softening). Extensive experience working with contaminants of regulatory concern, such as those on the Candidate Contaminant List (CCL). Additional experience includes removal of DBPs and their precursors; Evaluation of reverse osmosis membranes to concentrate unknown DBPs for subsequent in vivo and in vitro health effects work (multiple endpoints). |
Treatment
- Multi-Barrier/
Treatment
Processes
- Treatment
Chemicals |
| Wahman, David |
Environmental Engineer |
Biological removal of disinfection by-products from drinking water, biological drinking water treatment, and distribution system nitrification. Special interest in the application of molecular based tools, modeling, and biological treatment to drinking water treatment and distribution system issues. |
Distribution
- Distribution
Network
Modeling |
| Yang, Jeff Yingping |
Physical Scientist |
Sustainable water resources development, holistic water adaptations to climate and socioeconomics changes; extensive practical and hands-on water and environmental engineering experience over 20 states and overseas with knowledge of engineering management and economics; research skills including bench-, pilot-, and full-scale experimental design and testing, computer modeling of various environmental media and processes in chemical, physical and engineering systems, system analysis and economic evaluations; expanded research on climate change, water resource adaptation, drinking water distribution systems, wastewater management and reuse, and expert systems. |
Catchment
- Alternatvie
Sources
- Climate Risks |
