Alex A. Mofidi, PE
Senior Process Engineer
Education Prior to recently joining AECOM, Mr. Mofidi had been a Principal
Engineer with a specialty environmental engineering and science
MS Civil Engineering, California
consulting company. He has experience with a variety projects and
State University, Fullerton/1997
clients which include evaluating water treatment plant performance,
BS Civil Engineering, California conducting bench- and pilot-scale testing of water treatment
State Polytechnic University, technologies, developing operations and regulatory compliance
Pomona/1992 plans, providing general water quality and treatment technical
assistance to utilities, and supporting water treatment designs.
Years of Experience Mr. Mofidi has 16 years experience with the Metropolitan Water
Joined AECOM 3/2009 District of Southern California. He managed Metropolitan’s Applied
With others 18 years Research (Process Development) Team and was responsible for a
large number of water quality and treatment evaluation projects
Registrations conducted for Metropolitan and many of its retail member agencies
such as managing the $40 million Desalination Research and
Professional Civil Engineer Innovation Partnership (DRIP) program and leading several $ millions
CA (2001) #C61223 worth of research projects funded by the Water Research Foundation
Professional Civil Engineer (previously the AWWA Research Foundation). Mr. Mofidi has worked
WA (2007) #43559 along side State health departments and the Federal EPA to develop
new drinking water quality and treatment regulations as well as
Certifications technical guidance manuals. Mr. Mofidi has been an adjunct lecturer
in the Department of Civil Engineering at both California State
Water Treatment Plant Operator Polytechnic University, Pomona and Gonzaga University.
T3, State of California #18274
Mr. Mofidi last served Metropolitan as their Water Quality Purification
Engineer. In this capacity he led a staff of 30 engineers and scientists
and managed all of Metropolitan’s activities related to water quality
American Water Works regulatory compliance such as the examination of source water
Association quality and investigation of proposed changes to improve water
American Society of Civil quality; substantiation of the influence of land use patterns,
Engineers watershed recreation and point and non-point source pollution; and,
establishment of operational criteria and long-term planning to ensure
Chi Epsilon National Civil
regulatory compliance. Mr. Mofidi was responsible for approving
Engineering Honor Society monthly compliance reports to the California Department of Public
International UV Association Health for Metropolitan’s full-scale water treatment plants (>2.2 billion
1998 Co-founder / member gallons per day treatment capacity) and small desert communities
AWWA Pacific Northwest Section housing Metropolitan staff along the Colorado River Aqueduct.
Water Treatment, Quality, and RELATED EXPERIENCE
AWWA CA-NV Section Water On-Call Services and Technical Support
Treatment and Research Jordan Valley Water Conservancy District; Salt Lake City, Utah.
Committees Develop a taste-and-odor (T&O) control monitoring plan that
identifies the chemicals that cause aesthetic problems in the source
Adjunct Teaching Experience water and also describes the fate of these chemicals through
treatment. The project involves a water quality assessment of algal
Gonzaga University (2008-2009) activity and stratification of the Deer Creek Reservoir. (2008-2009)
California State Polytechnic
University, Pomona (2004-2007) City of Santa Barbara; Santa Barbara, California. Evaluate source
water quality and reservoir limnology to assist City anticipate when
turnover and taste and odor events will occur. (2008)
Alex A. Mofidi, PE
Alameda County Water District; Fremont, California. Develop a bromate control strategy for full-scale
testing of alternatives that were evaluated at ACWD Water Treatment Plant No. 2. (2007-2009)
Malcolm Pirnie Inc.; Cincinnati, Ohio. Technical advisor to develop a demonstration-scale testing
program for ultraviolet (UV) disinfection biodosimetry for the Greater Cincinnati Water Works. (2003)
Hazen and Sawyer; New York, New York. Technical advisor for evaluating the hydraulic engineering of
a large-scale, UV disinfection treatment plant that will provide >2-billion gallons of water per day of
disinfected, unfiltered surface water to the Borough of Manhattan for the New York Department of
Environmental Protection. (2002-2003)
Treatment Evaluations and Testing
Elsinore Valley Municipal Water District; Lake Elsinore, California. Conduct a 12-month jar testing
program that evaluates the ability for Canyon Lake Water Treatment Plan to comply with enhanced
coagulation requirements by meeting Step-2 point-of-diminishing-return coagulation performance for
water from Canyon Lake, CA. (2008)
Carollo Engineers/Elsinore Valley Municipal Water District; Lake Elsinore, California. Prepared
operating plans, permit amendments, and assist in plant startup/optimization for the newly constructed
Back Basin Groundwater Treatment Plant and two groundwater blending facilities. The BBGWTP utilizes
coagulation and pressurized, conventional media filtration to remove arsenic from groundwater while the
blending facilities also reduce arsenic prior to distribution. (2008)
Zone 7 Water Agency; Livermore, California. Member of team that conducted bench- and pilot-scale
testing of technologies to control taste-and-odor causing compounds at the Del Valle and Patterson Pass
Water Treatment Plants. Work developed water quality design criteria that will be used for full-scale
engineering design of new treatment facilities. (2007-2009)
Serrano Water District; Villa Park, California. Managed and conducted bench- and pilot-scale testing
of ozone and UV light technologies to meet Long-Term 2 Enhanced Surface Water Treatment Rule
regulatory requirements and control taste-and-odor compounds at Walter E. Howiler WTP. (2007-2008)
Eastern Municipal Water District; Perris, California. Designed & conducted tracer testing of chlorine
contact basins for Title 22 compliance and approval by California Department of Public Health. Basins
were located at multiple facilities: Temecula Valley Regional Water Reclamation Facility (6 MGD), Perris
Valley Regional Water Reclamation Facility Plant 1 (5 MGD) and Plant 2 (8 MGD). (2007-2008)
Metropolitan Water District of Salt Lake and Sandy City; Salt Lake City, Utah. Identified water
treatment bottlenecks and outline procedures for the District to conduct pilot- and full-scale testing in
order to successfully expand capacity of Little Cottonwood Water Treatment Plant (ozone and
conventional treatment) from 113- to 150-MGD. (2007)
Park Water Company; Downey, California. Managed and conducted pilot testing that evaluated the
coagulation/filtration process for removing arsenic and manganese from well water. Testing developed
design criteria for full-scale well-head treatment plant design and construction. (2007)
Carollo Engineers/Elsinore Valley Municipal Water District; Lake Elsinore, California. Managed
bench/pilot testing evaluating treatment strategies to comply with the Stage 1 Disinfectants and
Disinfection By-Products Rule requirements for TOC removal and identify treatment changes to mitigate
short filter runs at the 9-MGD Canyon Lake WTP. (2007)
Metropolitan Water District of Southern California; Los Angeles, California
Managed bench-, pilot-, and demonstration-scale testing of alternatives to acidification to control
bromate formation in SPW and SPW/CRW blended waters. (2006-2007)
Part of a multi-disciplinary team of ~10 persons from Engineering, Operations and Water Resources
Management that review, rate, and recommend all Capital improvement projects that fulfill the needs
of the General Manager’s Business Plan, meet budget requirements, and allow Metropolitan to
maintain 100% compliance with regulatory requirements. The team reported directly to the General
Manager’s office as mandated by Metropolitan’s Board of Directors. (2005-2007)
Alex A. Mofidi, PE
Coordinated/implemented tools for Metropolitan’s security/threat monitoring program. (2005-2007)
Managed contractors to complete scoping study, preliminary design, and final design of a new,
5,000 ft2, 2-story building & 40-gpm pilot WTP facility at Metropolitan‘s F. E. Weymouth Water
Treatment Plant. Responsible for water quality design criteria, oversight of performance of consulting
engineering services and engineering staff efforts, coordination with MWDSC’s Capital Improvements
Program process and Engineering’s project management, advising MWDSC’s upper management of
needs and progress, and presenting project funding authorization requests to MWDSC’s Board of
Coordinated staff duties and conduct lithium-chloride based tracer studies characterizing disinfection
efficiency and hydraulic performance of two full-scale, 80-mgd ozone contactors at Metropolitan‘s
H.J. Mills WTP in Riverside, CA. Results were presented to managers & DPH engineers. (2003)
Managed the Desalination Research and Innovation Partnership (DRIP) program, a nine-year (1997-
2006), $42.2 million, multi-organizational program developing novel, large-scale desalination
processes treating brackish surface water and groundwater, agricultural drainage water, and
municipal waste water to reduce salinity in the Southern California region. (2002-2007)
Conducted bench-scale testing to evaluate the feasibility of implementing short-term, chlorine contact
at Metropolitan‘s SPW/CRW blend plants to meet Stage 2 M/DBP Rule requirements. Proposed
treatment would be in raw waters prior to conventional treatment. (2002-2004)
Provided technical support during startup and long-term operation of full-scale biologically-active,
dual-media filters (biofilters) following ozone at the H.J. Mills (160 MGD) and J. Jensen (750 MGD)
WTPs. Oversight included monitoring operational and distribution-system stability and
communication with member agencies. (2002)
Developed emergency response protocol to be effective against finished (treated) water microbial
Developed training documents and criteria and perform instruction via courses held for MWDSC and
member agency operators. Key areas of instruction included ozone plant operations, shutdowns,
disinfection calculation, overall process performance and minimization of DBPs. (1998)
California Department of Water Resources; Sacramento, California. Developed/performed bench-
scale testing program evaluating polymers for removing particulate quartz prior to Edmonston Pumping
Plant on the California Aqueduct (quartz was destroying the stainless steel pump impellars). (1997-1998)
Research and Process Development (Lead Funding Agencies Shown)
Water Research Foundation; Denver, Colorado. Principal Investigator for AwwaRF 3105 “Challenge
Organisms for Inactivation of Viruses by Ultraviolet Treatment” with Dr. Ernest Blatchley III (Civil
Engineering Dept., Purdue University, West Lafayette, ID); O. Karl Scheible (HydroQual Ultraviolet
Validation and Research Center, New York, NY); City of Seattle (Seattle, WA); Weber Basin Water
Conservancy Dist. (Layton, UT); Eastern Municipal Water Dist. (Perris, CA). This project was to develop
microbial and chemical surrogates for high-dose biodosimetry testing of UV reactors (several hundred
millijoules per square centimeter) and demonstrate efficacy of results. (2006-2007)
California Department of Water Resources (Proposition 13 Funding); Sacramento, California.
Principal Investigator developing methods measuring UV light dose in large-scale UV reactors. Methods
used computational fluid dynamics & irradiance (CFD-i) modeling to validate and predict performance of
full-scale (>25 mgd) UV reactors with result verification with dyed microspheres. (2002-2006)
Cal-Fed Agency; San Francisco, California. Principal Investigator and program manager of a CalFed
Bay-Delta Water Management and Ecosystem Restoration Program project titled “Integrating Ultraviolet
Light to Achieve Multiple Water Quality Objectives (DWQ Program).” Project goals were to evaluate the
use of UV light, ozone, chlorine and chlorine dioxide to meet multiple water quality objectives
(disinfection, minimization of disinfection by-products [DBPs], reduction of micropollutants). (2002-2005)
Alex A. Mofidi, PE
Metropolitan Water District of Southern California; Los Angeles, California. Evaluated large-scale
(5-MGD) feasibility of chlorine dioxide disinfection; use of ferrous chloride to remove chlorite, and
powdered activated carbon to remove tastes and odors without impacting filtration. Evaluate long-term
operation of chlorine dioxide treatment and quantify formation of biodegradable dissolved organic matter
(BOM) and potential need for biofiltration following treatment. (2002-2004)
Black and Veatch, Inc./Water Research Foundation; Kansas City, Missouri. Managed CFD modeling
to predict outcome of MS-2 biodosimetry conducted on a 3-MGD UV reactor. AwwaRF project 2768 “UV
Disinfection for Large Water Treatment Plants.” (2001-2004)
California Energy Commission; Sacramento, California. Developed monitoring protocol for UV
treatment of drinking water and determine the efficacy of using UV (effect on DBPs, minimization of
micropollutants). Conduct experiments in on-line UV dose estimating techniques for large-scale reactors
without biodosimetry verification challenges (predict UV dose delivery). Project 400-00-013
“Demonstration of UV Technologies for Microorganism Disinfection and Micropollutant Oxidation.” (2001-
Duke University/Water Research Foundation; Raleigh, North Carolina. Coordinated and conducted
Metropolitan’s participating-utility efforts for AwwaRF 2599 “Innovative UV Technologies to Oxidize
Organic and Organoleptic Chemicals.” (2000-2003)
University of New Hampshire/Water Research Foundation; Durham, New Hampshire. Co-Principal
Investigator to Quantify UV dose-response of Escherichia coli 0157:H7, Adenovirus types 2, 40, and 41,
Astrovirus serogroup II, Calicivirus Bos-1, Echovirus-1, and Rotavirus SA-11 and surrogate organisms
Bacillus subtilis (and other native waterborne aerobic spores), MS-2, and heterotrophic plate count (HPC)
bacteria to UV light. AwwaRF project 2593 “Inactivation of Pathogens by Innovative UV Technologies.”
California Energy Commission; Sacramento, California.
Developed bench-scale pulsed-UV oxidation, reduction, and photolysis technology to destroy
bromate, Methyl tert-butyl ether, perchlorate, n-nitrosodimethylamine, and the taste-and-odor
compounds geosmin and 2-methylisoborneol. Project 500-97-044 “Advanced Oxidation Processes
and UV Photolysis for Treatment of Drinking Water.” (1999-2001)
Developed bench-scale medium-pressure and pulsed-UV technology benchmark criteria for
disinfection of heterotrophic plate count bacteria, single-stranded ribonucleicacid (RNA) virus
surrogate male-specific coliphage (MS-2) and double-stranded RNA virus surrogate phi-six ( 6),
Bacillus subtilis aerobic spores, Cryptosporidium parvum disinfection and deoxyribonucleicacid (DNA)
repair, Giardia muris disinfection and Giardia lamblia disinfection. Project 500-97-044 “Investigation
of Ultraviolet Light Disinfection.”
Conduct scale-up/validation of a 3-million-gallon-per-day (mgd) medium-pressure UV reactor).
Project 500-97-044 “Investigate Scale-Up Issues with UV Light Disinfection and RO Desalination.”
Duke University/Water Research Foundation; Raleigh, North Carolina. Co-Principal Investigator to
develop radiometry and chem/bio actinometry methods to calc germicidal dose from mono- and poly-
chromatic UV lamps, establish UV dose/log-inactivation relationships for heterotrophic/aerobic spore
forming bacteria, MS-2 coliphage and C. parvum and quantify photoreactivation/dark repair of bacteria.
Project 2559 “Disinfection Efficiency and Dose Measure for Polychromatic UV Systems.” (1998-2001)
Southern California Edison / California Energy Commission; Irwindale, California
Demonstrated ability to increase water recovery through freeze-thaw of brackish water desalting plant
brine. Project “Mechanical Freeze-Crystallization of Desalting Plant Brine.” (1998-2000)
Investigate ability of UV light to inhibit biofouling of low-pressure, RO membranes. Quantify UV
disinfection of hetertrophic bacteria naturally occurring in drinking water and MS-2 and C. parvum
spiked into pilot plant ozone/biofiltered water. Project “Pulsed-UV for Disinfection and Membrane
Biofouling Control.” (1998-1999) Also published by CEC as project 500-97-12.
Alex A. Mofidi, PE
Metropolitan Water District of Southern California/Water Research Foundation. Assist principal and
other investigators (Cordelia Hwang, MWDSC; Jerry Lineer, USGS) and develop experimental plans &
conduct RO-concentration of organic matter from California State Project water for
fractionation/characterization. Tests conducted at at full-scale conventional & ozone/biofiltration
treatment plants in northern and southern California. AwwaRF project 451 “Characterization of the Polar
Fraction of NOM with Respect to DBP Formation.” (1996-1999)
Metropolitan Water District of Southern California/University of Waterloo. Assist principal and other
investigators (Peter Huck, University of Waterloo; Brad Coffey, MWDSC; Helene Baribeau, MWDSC) to
monitor biodegradable dissolved organic carbon (BDOC), filter biomass (phospholipid extraction,
digestion, and quantification), and operate bench-scale distribution systems (annular reactors). AwwaRF
project 252 “Optimizing Filtration in Biological Filters.” (1995-1998)
Metropolitan Water District of Southern California/Water Research Foundation. Assist principal and
other investigators (Jill Gramith & Brad Coffey, MWDSC) for demo-scale (5 MGD) testing to quantify
ozone residual methods, contactor hydraulics, disinfection effectiveness (CT) calcs, bromate formation
and control strategies, and ozone/PEROXONE for oxidation of T&O compounds. AwwaRF project 525-
89 “Demonstration-Scale Evaluation of Ozone and PEROXONE.” (1991-1998)
RECOGNITIONS AND AWARDS
Excellence for Exceptional Customer Service, Innovation, and Creativity, “Evaluation of Emerging
Alternative Disinfectants,” from CEO R. Gastelum, Metropolitan Water District of Southern California
(2003, team award).
Excellence for Exceptional Customer Service, Innovation, and Creativity, “Ultraviolet Reactor Study
and Analysis,” from CEO R. Gastelum, Metropolitan (2003, team award).
Grand Prize Award in Research and Excellence in Environmental Engineering, “Metropolitan Water
District of Southern California’s Oxidation Demonstration Project,” presented by the American
Academy of Environmental Engineers (1993, team award).
PUBLICATIONS AND PRESENTATIONS
1. Mofidi, A.A. & Boyd, G., “Applying Research Fundamentals to Maintain Integrity of Real-World
Operational Data,” to be presented at the 2009 Pacific Northwest Section AWWA Annual Conference,
Salem, OR. (May 6-9).
2. Shen, C.; Scheible, O.K.; Chan, P.-S.; Mofidi, A.A.; Yun, T.I.; Lee, C.C.; Blatchley, E.R. III.
“Validation of Medium-Pressure UV Disinfection Reactors by Lagrangian Actinometry Using Dyed
Microspheres.” 2009, In Print. Water Research.
3. Mofidi, A.A. “UV Biodosimetry” to be presented at the City of Portland UV Workshop “Destination
UVination”, Feb. 25-26, 2009. Portland, Oregon.
4. Mofidi, A.A. & Noelle, R. “Ozone Process Overview and Residual Sampling.” 2009, Pacific Northwest
Section AWWA Operator’s Forum 9: Water Treatment Plant Operations. Jan. 22, Wilsonville,
5. Teefy, S.; Najm, I.; Mofidi, A.A.; Pena, C.; Gentry, B. “Comparison of Bromate Control Strategies:
pH Suppression vs. Chloramine Addition,” 2008 AWWA Water Quality Technology Conference,
Cincinnati, Ohio. (Nov 16 – 19).
6. Wait, I.; Mofidi, A.A.; Blatchley, E.R. III “Long-Term, Interior and Exterior Sleeve Fouling in a
Medium-Pressure Ultraviolet Drinking Water Disinfection Reactor,” 2007 AWWA Water Quality
Technology Conference, Charlotte, N. Car. (Nov 4-8).
7. Blatchley, E.R. III; Shen, C.; Scheible, O.K.; Mofidi, A.A. “Validation and Characterization of UV
Reactors by Lagrangian Actinometry (Dyed Microspheres),” 2007 AWWA Annual Conference, June
24-28. Toronto, Ontario, Canada.
Alex A. Mofidi, PE
8. Gabelich, C.J.; Yun, T.I.; Williams, M.D.; Knoell, T.; Pearce, W.; Daniel, U.; Cohen, Y.; Hoek, E.M.V.;
Matsumoto, M.R.; Sangines-Uriarte, L.; John, P.; Scherzinger, R; Mofidi, A.A. “Applied research for
large-scale desalting: the Desalination Research and Innovation Partnership.” 2007, Desalination of
Seawater and Brackish Water, AWWA Ed., AWWA, Colo.
9. Shen, C.; Mofidi, A.A.; Yun, T.I.; Lee, C.; Robinson, J.; Bergstrom, D.; Blatchley, E.R. III. “Application
of dyed microspheres for characterizing large-scale, medium-press. UV reactor dose distribution.”
2006 AWWA Water Quality Technology Conference, Denver, Colorado. (Nov 5-9).
10. Blatchley, E.R. III; Shen, C.; Scheible, O.K.; Weber, E.; Rokjer, D.; Mofidi, A.A. “LT2 Enhanced
Surface Water Treatment Rule and Ultraviolet Disinfection Guidance Manual implications for
microsphere testing of ultraviolet disinfection systems.” 2006 AWWA Water Quality Technology
Conference, Denver, Colorado. (Nov 5-9).
11. Mofidi, A.A. “Full-Scale Use of Ozone/Biofiltration for Disinfection and Taste and Odor Control.” 2006
AWWA Water Quality Technology Conference, Denver, Colorado. (Nov 5-9).
12. Yun, T.I.; Gabelich, C.J.; Gerringer, F.W.; Mofidi, A.A.; Norris, M.D. “Evaluation of large-diameter
reverse osmosis elements & novel concentrate reduction technologies for Colorado River water
desalting.” 2006, American Membrane Technology Association Conf., Anaheim, Calif. (Aug 1-2).
13. Jin, S.; Mofidi, A.A.; Linden, K.G. “Polychromatic UV fluence measurement using chemical
actinometry, biodosimetry & mathematical techniques.” 2006, ASCE Journal of Environmental
Engineering (132:8, 831-841).
14. Shen, C.; Naunovic, Z.; Blatchley, E.R. III; Robinson, J.P.; Ragheb, K.; Grégori, G.; Bergstrom, D.E.;
Huang, J.; Mofidi, A.A. “Quantification of UV dose by dyed microspheres for UV reactors delivering
radiation other than 254nm.” 2005, AWWA Water Quality Technology Conference, Quebec City,
Quebec (Nov 6-10).
15. Mofidi, A.A.; Johnston, R.; Coffey, B.M.; Gerringer; F.W.; Krasner, S.W. “Performance of large-scale
biofiltration for removal of particles and biodegradable organics from ozone.” 2005, AWWA Water
Quality Technology Conference, Quebec City, Quebec (Nov 6-10).
16. Liang, S. & Mofidi, A.A. “Treatment of micropollutants by ultraviolet photolysis, ozonation, and
advanced oxidation processes.” 2005, International Workshop on Novel and Enhanced Water
Treatment Technologies and Upgrading Water Quality, Tianjin, China (Sep 6-8).
17. Gabelich, C.J.; Knocke, W.R.; Coffey, B.M.; Johnston, R.; Do, H.; Mofidi, A.A. “Manganese
desorption from filter media: experiences with biological filtration.” 2005, AWWA Annual Conference
and Exhibition, San Francisco, Calif. (Jun 5-9).
18. Yun, T.I.; Gabelich, C.J.; Mofidi, A.A.; Krasner, S.W.; Coffey, B.M. “Integrating ultraviolet light to
achieve multiple treatment objectives.” 2005, AWWA Annual Conference and Exhibition, San
Francisco, Calif. (Jun 5-9).
19. Yun, T.I.; Gabelich, C.J.; Mofidi, A.A.; Krasner, S.W.; Coffey, B.M. “Desalination Research and
Innovation Partnership program update.” 2005, AWWA CA/NV Section Spring Conference, Industry
Hills, Calif. (Apr 7).
20. Yun, T.I.; Gabelich, C.J.; Cox, M.R.; Mofidi, A.A.; Lesan, R. “Reducing costs for large-scale desalting
plants using large-diameter, reverse osmosis membranes.” 2006, Journal Desalination (189:143-
21. Mofidi, A.A. & Linden, K.G. “Disinfection effectiveness of ultraviolet light for heterotrophic bacteria
leaving biologically active filters.” 2004, Journal of Water Supply, Research and Technology – AQUA
22. Mofidi, A.A.; Yun, T.I.; Krasner, S.W.; Liang, S.; Coffey, B.M. “Formation and removal of BOM
produced by chlorine dioxide treatment of California State Project water.” 2004, AWWA Water Quality
Technology Conference, San Antonio, Tex. (Nov 14-18).
Alex A. Mofidi, PE
23. Krasner, S.W.; Yun, T.I.; Yates, R.S.; Mofidi, A.A.; Liang, S.; Coffey, B.M. “Pre-oxidation with
chlorine dioxide to control bromate formation during subsequent ozonation.” 2004 AWWA Water
Quality Technology Conference, San Antonio, Tex. (Nov 14-18).
24. Mofidi, A.A.; Momtaz, S. Coffey, B.M. “Predicting large-scale ultraviolet performance using
computational fluid dynamics and irradiance modeling.” 2004, AWWA Annual Conference and
Exhibition, Orlando, Fla. (Jun 13-17).
25. Liang, S.; Krasner, S.W.; Yun, T.I.; Yates, R.S.; Mofidi, A.A.; Coffey, B.M. The use of ferrous chloride
for the reduction of chlorite and as an alternative coagulant.” 2004, AWWA Annual Conference and
Exhibition, Orlando, Fla. (Jun 13-17).
26. Cohen, Y. & Mofidi, A.A. “Advancing Membrane Science through Utility-Academia Partnerships.”
2004, American Institute of Chemical Engineers Conference.
27. Malley, J.P.; Margolin, A.; Mofidi, A.A.; Linden, K.G. “Inactivation of pathogens by innovative
ultraviolet technologies.” 2004, AWWA Research Foundation, Denver, Colo.
28. Snyder, S.; Westerhoff, P.; Mofidi, A.A.; Wert, E. Yoon, Y. “Removal of endocrine disruptors and
pharmaceuticals by oxidative water treatment.” 2004, 8th Annual Water Reuse Research Conference,
Las Vegas, Nev. (May 17-18).
29. Rochelle, P.A.; Mofidi, A.A.; Marshall, M.M.; Upton, S.J.; Montelone, B.; Woods, K.; Di Giovanni, G.
“An investigation of ultraviolet disinfection and repair in Cryptosporidium parvum.” 2004, AWWA
Research Foundation, Denver, Colo..
30. Linden, K.G.; Bolton, J.R.; Malley, J.P.; Mofidi, A.A.; Stefan, M.I. “Benchmarking ultraviolet
collimated beam tests: interlaboratory comparison of UV sensitivity of MS-2 coliphage.” 2003, AWWA
Water Quality Technology Conference, Philadelphia, Penn. (Nov 2-5).
31. Krasner, S.W.; Mofidi, A.A.; Liang, S. “DBP formation from short-term contact with chlorine, followed
by long-term contact with chloramines.” 2003, Anaheim, Calif. (Jun 15-19).
32. Momtaz, S.; Sami, M.; Kashay, S.N.; Mofidi, A.A. Predicting ultraviolet disinfection system
performance–simulation & experiment.” 2003, Fluent Conference, Manchester, N. Hamp. (May 5-7).
33. Mofidi, A.A. “Ultraviolet reactor validation.” 2003, IUVA Conference on Ultraviolet Disinfection for
Drinking Water, Austin, Tex. (Feb 27).
34. Linden, K.G. & Mofidi, A.A. “Disinfection efficiency and dose measurement for medium-pressure and
pulsed-UV disinfection systems.” 2003, AWWA Research Foundation, Denver, Colo.
35. Rochelle, P.A.; Mofidi, A.A.; Linden, K.G.; & De Leon, R. “Measuring inactivation of Cryptosporidium
parvum by in-vitro cell culture.” 2003, Cryptosporidium: From Molecules to Disease, Elsevier.
Thompson, Armson, & Ryan, Eds. (225 – 231).
36. Mofidi, A.A.; Rochelle, P.A.; Chou, C.I.; Mehta, H.M.; Linden, K.G.; & Malley, J.P. “Bacterial survival
after ultraviolet light disinfection: resistance, regrowth and repair.” 2002, AWWA Water Quality
Technology Conference, Seattle, Wash. (Nov 10-13).
37. Mofidi, A.A. “Biodosimetry and ultraviolet validation.” 2002, IUVA Conference on Ultraviolet
Disinfection for Drinking Water, Ontario, Calif. (Aug 22).
38. Mofidi, A.A.; Meyer, E.A.; Wallis, P.M.; Chou, C.I.; Meyer, B.P.; Ramalingam, S.; & Coffey, B.M.
“Effect of ultraviolet light on inactivation of Giardia lamblia and Giardia muris cysts determined by
animal infectivity.” 2002, Water Research (36:2098-2108).
39. Rochelle, P.A.; De Leon, R.; Mofidi, A.A. “Measure of ozone and UV disinfection of Cryptosporidium
spp. using in vitro cell culture.” 2002, American Society for Microbiology Annual Conference (June).
40. Sharpless, C.M.; Chou, C.I.; Mofidi, A.A.; Linden, K.G. “N-nitrosodimethylamine removal from
drinking water ultraviolet treatment: direct comparison of ultraviolet technologies.” 2001, AWWA
Water Quality Technology Conference, Nashville, Tenn. (Nov 11-15)
Alex A. Mofidi, PE
41. Meyer, E.A. & Mofidi, A.A., “Disinfection of Giardia lamblia by ultraviolet light.” 2001, XI International
Congress on Protozoology, Prague, Chech Republic (Jul 21-24).
42. Mofidi, A.A.; Baribeau, H.; Rochelle, P.A.; De Leon, R.; Coffey, B.M.; Green, J.F. “Disinfection of
Cryptosporidium parvum with polychromatic ultraviolet light.” 2001, Journal American Water Works
43. Mofidi, A.A.; Coffey, B.M.; Chou, C.I.; Mehta, H.M.; Green, J.F. “Demonstration-scale evaluation of
ultraviolet irradiation for treatment of surface water.” 2001 AWWA Annual Conference and Exhibition,
Wash., D.C. (Jun 17-21).
44. Mofidi, A.A.; Chou, C.I.; Coffey, B.M.; Meyer, E.A.; Wallis, P.M. “Disinfection of Giardia lamblia by
ultraviolet light.” 2001, IUVA International Congress, Washington D.C. (Jun 14-15).
45. Rochelle, P.A.; Mofidi, A.A.; De Leon, R. “Experimental design considerations for cell culture to
measure inactivation of Cryptosporidium parvum by ultraviolet irradiation.” 2001, IUVA International
Congress, Washington D.C. (Jun 14-15).
46. Jin, S.; Chou, C.I.; Mofidi, A.A.; Linden, K.G. “Analysis of ultraviolet dose measurement using
chemical actinometry, biodosimetry, and mathematical techniques.” 2001, IUVA International
Congress, Washington D.C. (Jun 14-15).
47. Coffey, B.M; Mofidi, A.A.; Williams, M.D., DeLeon, R. Green, J.F. “Comparing ultraviolet and ozone
disinfection of Cryptosporidium parvum: Implications for multi-barrier treatment.” 2001 AWWA Annual
Conference and Exhibition, Wash., D.C. (Jun 17-21).
48. Mofidi, A.A.; Coffey, B.M.; Chou, C.I.; Liang, S.; Green, J.F. “Using UV light to achieve multiple water
quality objectives.” 2000, AWWA Water Quality Tech. Conf., Salt Lake City, Utah (Nov. 5-9).
49. Mofidi, A.A. “Ultraviolet technology research activities within a large utility environment.” 2000,
AWWA Research Foundation Technology Transfer Conf., Calgary, Alberta, Can. (Sept 21)
50. Mofidi, A.A.; Bartels, C.R.; Coffey, B.M.; Ridgway, H.F.; Safarik, J.; Ishida, K.; Knoell, T; Bold, R.
“Ultraviolet irradiation as a membrane biofouling control strategy.” 2000, AWWA Annual Conference
and Exhibition, Denver, Colo. (Jun 11-15).
51. Mofidi, A.A. & Coffey, B.M. “Research, implementation and monitoring requirements for ultraviolet
light treatment of surface water.” 2000, National Water Research Institute’s UV 2000: A Technical
Symposium, Costa Mesa, Calif. (Jan 27-28).
52. Mofidi, A.A.; Baribeau, H.; Green, J.F. “Inactivation of Cryptosporidium parvum with polychromatic
ultraviolet systems.” 1999, AWWA Water Quality Technology Conf., Tampa, Fla. (Oct 31-Nov 3).
53. Linden, K.G. & Mofidi, A.A. “Measurement of ultraviolet irradiance: tools and considerations.” 1999,
AWWA Water Quality Technology Conference, Tampa, Fla. (Oct 31-Nov 3).
54. Wolfe, R.L. & Mofidi, A.A. “Application of polychromatic ultraviolet technology for disinfection of
surface waters in California.” 1999, USEPA Workshop on UV Disinfection of Drinking Water,
Washington, D.C. (Apr 28-29).
55. Baribeau, H.; Hacker, P.A.; Mofidi, A.A.; Coffey, B.M.; De Leon, R. “Regrowth and biofilms:
evaluating effects of biological and conventional treatment on distribution systems.” 1999, AWWA
CA/NV Section Conference, Pleasanton, Calif. (Feb 18).
56. Mofidi, A.A.; Baribeau, H.; Green, J.F.; De Leon, R.; Wolfe, R.L. “Disinfection using high intensity
pulsed-UV irradiation.” 1998, AWWA Water Quality Technology Conf., San Diego, Calif. (Nov 1-5).
57. Baribeau, H.; Hacker, P.A.; Mofidi, A.A.; Coffey, B.M.; De Leon, R. “Effects of biological and
conventional treatment on biological stability in simulated distribution systems.” 1998, AWWA Water
Distribution System Disinfection Residual Workshop, Philadelphia, Penn. (Apr 26-28)
58. Mofidi, A.A. “Using BDOC to evaluate treatment plant performance: research technique or
monitoring tool?” 1997, AWWA CA/NV Section Conference, Long Beach, Calif. (Oct 23).
Alex A. Mofidi, PE
59. Krasner, S.W.; Coffey, B.M.; Baribeau, H.; Hacker, P.A.; Hwang, C.J.; Kuo, C.-Y.; Mofidi, A.A.;
Sclimenti, M.J. “The effect of ozonation and biofiltration on natural organic matter.” 1996, Natural
Organic Matter Workshop: Influence of Natural Organic Matter Characteristics on Drinking Water
Treatment and Quality, Poitiers, Fra. (Sep 18-19).
60. Krasner, S.W.; Coffey, B.M.; Hacker, P.A.; Hwang, C.J.; Kuo, C.-Y.; Mofidi, A.A.; Sclimenti, M.J.
“Characterization of the components of biodegradable organic matter.” 1996, 4th International BOM
Conference, University of Waterloo, Waterloo, Ontario, Can. (Jun 20-21).
61. Coffey, B.M.; Graff, K.G.; Mofidi, A.A.; Gramith, J.T. “On-line monitoring of ozone disinfection
effectiveness within an over/under-baffled contactor.” 1995, AWWA Annual Conference and
Exhibition, Anaheim, Calif. (Jun 18-22).
62. Cheng, R.C.; Coffey, B.M.; Krasner, S.W.; Mofidi, A.A.; Gramith, J.T. “Enhanced coagulation testing
of ferric chloride.” 1994, AWWA Enhanced Coagulation Research. Workshop, Charleston, S. Car.
COMMITTEES AND WATER INDUSTRY APPOINTMENTS
Pacific Northwest Section (PNWS) AWWA Water Treatment Committee Since 2008
PNWS AWWA Research Committee Since 2008
Int’l Ozone Assoc./IUVA 2007 World Congress Local Organizing Committee Co-Chair 2007
AWWA; Ultraviolet Standards Committee 2006 – 2007
AWWA; “State of the Science of Adenovirus” workshop participant 2005
AWWA; Water Industry Tech. Action Fund Project Advisory Committee 2004 – 2006
Institute of the Americas, UC San Diego; public health workshop invited speaker 2003
U.S. EPA National Center for Environmental Research; proposal review committee 2002 – 2007
City of Los Angeles; recruiter/interviewer for senior engineering-level staff 2001
IUVA; Co-founder and elected member of the Board of Directors: 1999 – 2008
Awwa Research Foundation; Technology Transfer Conferences; invited speaker 2000 – 2004
Natural Sciences & Engineering Research Council, Canada; proposal review comm. 1999 – 2007
U.S. EPA; UV Technical Working Group for the Federal Advisory Committee Act (FACA)
development of Stage 2 Microbial/Disinfectants & Disinfection By-Products Rules 1999 – 2000
AWWA; Technical Advisory Committee on UV Treatment (UVDGM review) 1999 – 2006
Awwa Research Foundation; Project Advisory Committees for multiple projects Since 1998
AWWA Journal, ASCE JEE, and Elsevier Science Journal Chemosphere; peer reviewer Since 1997