Professor Paul Robertsreceives AEESP FoundersAward

Awards for the Leckiegroup

Chemistry can be fun!

The capstone design class

The Luthy group news

Atmosphere & EnergyProgram

Creative ways to stimu-late interest in science &engineering among localschoolchildren…

Engineers for aSustainable World isexpanding…

Reducing bioavailability ofpolychlorinated biphenylsto clams

Philip Gschwend, Shimizuvisiting professor

Alumni news

E n v i r o n m e n t a l E n g i n e e r i n g & S c i e n c e

It's spring and time for our latestedition of the EES Newsletter. Thisissue brings you news about peer

recognition of Professor PaulRoberts' and Professor Jim Leckie'sachievements in science and teaching;Professor Craig Criddle's slightly dif-ferent chemistry textbook; a new pro-gram and new classes recently intro-duced. You will also read about stu-dents' involvement in global publicservice activities, and the creative pro-grams being designed to bring envi-ronmental science and sustainability

to school children and the local com-munity.

As you can tell, we have lots of newsabout EES, but not enough aboutyou, our readers. Please take a fewminutes to contact us. Send us an e-mail, call us on the phone, write us aletter, send a fax…whatever means ofcommunication works best. Let usknow where you are, and what youare doing, share your news with otheralumni and friends. We're eager tohear from you! We can be reached at:julieste@stanford.edu

In this issue

B 9, Terman Eng. Center,Stanford University, CA 94305-4020

Tel: (650) 736-2274Fax: (650) 723-7058

The Newsletter of the EES program at Stanford University for Summer 2005

t h e t h i r d i s s u e t h e t h i r d i s s u e t h e t h i r d i s s u e

EES Newsletter

Editor: Julie StevensDesigner: Molly Quan

Paul V. Roberts, C.L. Peck, Class of 1906, Professor of Engineering,Emeritus, is shown above with his wife, Inge, and a group of former stu-dents at a dinner in his honor at Antoine's in the French Quarter of NewOrleans. Roberts had just received the AEESP Founders Award.

See story on next page.

Alumni, colleagues and friends gath-ered to honor Paul V. Roberts, C.L.Peck, Class of 1906, Professor ofEngineering, Emeritus, and his wifeInge in New Orleans last October.He was the recipient of theAssociation of EnvironmentalEngineering and Science Professors(AEESP) Founders Award, present-ed at the annual Water EnvironmentFederation meeting there. This dis-tinguished award is given annually toan individual who has made “sus-tained and outstanding contribu-tions to environmental engineeringeducation and the profession”. Over30 former graduate student advisee,colleagues and contemporaries,

including three previous Founder'sAward recipients wrote letters tosupport Roberts' nomination for thishonor, all expressing their deeprespect for and admiration of himpersonally, as a researcher, and ateacher. Not only has he made signif-icant, ground-breaking contribu-tions to environmental research lead-ing to his election to the NationalAcademy of Engineering in 1997,but through teaching and mentoringhe has exerted a strong, lasting influ-ence on all his students, many ofwhom are successful academicians orenvironmental engineering profes-sionals.

2page

Professor James Leckie is elect-ed to the National Academy ofEngineering.

Professor Paul Roberts receives AEESP Founders Award

In February, Professor James O.Leckie, C.L. Peck, Class of 1906,Professor of EnvironmentalEngineering, was elected to theNational Academy of Engineering,one of the highest professional dis-tinctions for an engineer, and a well-deserved honor recognizing his sci-entific accomplishments and teach-ing contributions. When makingthe announcement, the Academyreferred specifically to his work on“advances in our understanding ofmetal and oxyanion adsorption onenvironmental surfaces that have ledto novel strategies for soil andgroundwater remediation”. Now sixEnvironmental Water Studies facul-ty have received this honor-Jim, andProfessors Luthy, McCarty, Roberts,

Street and Kavanaugh (Consulting)- more than any other environmen-tal engineering program in thecountry.

And more…

Congratulations to Paloma Beamer,Ph.D. student in Leckie's ExposureResearch Group, who has won theBest Student Paper Award for 2004.This award is presented at theInternational Society of ExposureAnalysis annual conference everyyear, and three of the five Ph.D. stu-dents in the exposure group havewon this award; the other two areValerie Zartarian in 1995 and AlesiaFerguson in 1996.

Awards for

Susie Stone, CEE

Department Manager, has

received the 2004 Kay

Bradley Award in grateful

recognition of her outstand-

ing service to students. The

award is named for Kay

Bradley who was Student

Services manager in the

Department of Mechanical

Engineering for many years.

On Friday, March 18, 2005,

Susie also reached another

landmark-35 years of service

to Stanford!

SUSIESTONE

the Leckie group...

The Capstone

SeessiiggnnIn the Capstone Class, aka

CEE179C, EnvironmentalEngineering Design, students

apply and polish their engineeringskills while coping with the manynon-technical issues that are partand parcel of engineering careers.The goal is to ensure that studentsgraduate with an understanding ofhow economic, social and regulatoryconsiderations must be integratedinto any project. The focus of theclass is typically local, dealing withissues that resonate with the stu-dents. This year students will con-sider water issues, including conser-vation, treatment, re-use, and stormwater collection and management,in the context of the proposed GreenDorm (SEE Autumn issue of theEES Newsletter). Though the con-cept is still in the preliminary stages,there is substantial support for theGreen Dorm throughout the

Stanford community, and theCapstone class is taking advantage ofthe many unique considerations andopportunities inherent in the GreenDorm concept.

As conceived, the dorm will be a liv-ing lab, so it must be designed to fitresearch seamlessly into a high qual-ity living environment. Flexibility iskey. Technologies, research issues,and teaching foci are likely to evolveover the life of the dorm. Water sys-tems must mesh with other systems(air quality and energy for instance).Over both short and long terms,Stanford must manage its waterdemands, wastewater generation,and storm water flows and GreenDorm water needs to fit with, andpreferably assist in meeting, theseconstraints. Finally the Dorm'swater systems must be compatiblewith building and other codes, codes

whose authors may never have envi-sioned something like a GreenDorm.

This combination of issues and con-straints should both challenge andengage this year's Capstone class. Inyears to come other aspects of theGreen Dorm or sustainability atStanford might provide otherCapstone classes with projects onwhich to cut their teeth. In any case,the objective of the class will alwaysbe to offer students ways to applytheir engineering skills to a real-lifesituation while dealing with thenon-scientific, non-engineeringissues that are integral to everydaypractice in the outside world.

Capstone is required for an under-graduate degree in CEE. Teaching isshared between EES and EFMH.

by Sandy Robertson (EES)

3page

Class

Two years and over 12,000 e-mailsin the making, The Cartoon Guideto Chemistry, a light hearted rompthrough chemistry, will be publishedin May this year. The book is theresult of collaboration between SanFrancisco cartoonist Larry Gonickand Professor Craig Criddle.Gonick is well known for hisCartoon Guides on topics rangingfrom physics to sex to a history ofthe universe. In 2003 his guide TheCartoon History of the UniversePart III won the Harvey Award for“the year's best graphic album oforiginal material”.

This story began when Criddle wasseeking an illustrator for a book onaquatic chemistry. KnowingGonick's work, Criddle contactedhim to see if he might be interested.Gonick asked to see some chapters,and after reading them he madeCriddle a counter proposal: wouldCriddle be interested in a moreexpansive effort covering the whole

of chemistry? Thus began an intensetwo-year collaboration.

Criddle describes the project as avaluable learning experience.Squeezing the detailed and complexmaterial of chemistry into the “onepage, one concept” format of acomic book was a tremendous chal-lenge. “I came away with enormousrespect for Larry and what he does”,says Criddle. Equally challengingwas responding to Gonick's insa-

tiable curiosity. “It was like dealingwith a really smart Ph.D. student.Gonick's determination to get to thebottom of things made me look forbetter explanations and examples,and that has had a happy side effecton the classes I teach”, says Criddle.

Criddle hopes that The CartoonGuide to Chemistry will help thosewho fear chemistry or have struggledto understand it, while also inspiringand amusing those who already havea good grasp of it. “One ofthe beauties of cartoons isthe chance to makethings more human and lessabstract”, says Criddle.“Some atoms and mole-cules fall in love andbond, others explode.Cartoons can give us anintuitive feeling for thewhy, and deeperunderstanding cangrow from thatintuition”.

The Cartoon Guide to Chemistry - chemistry can be fun!

&

4page A preliminary field test of an in situremediation strategy of mixing acti-vated carbon into PCB-contaminat-ed sediments was completed in sum-mer, 2004 through a major collabo-rative effort led by researchers in

Professor Richard G. Luthy's lab.Postdoc Dennis Smithenry and grad-uate student Yeo-Myoung Chohelped conduct the project atHunters Point Naval Shipyard in SanFrancisco with funds provided byNaval Facilities EngineeringCommand, Southwest Division(NAVFAC). A barge-like machinecalled an Aquamog was used to mixactivated carbon into the sediment asa means of sequestering PCBs.Preliminary results indicate that the

carbon was successfully mixed intothe sediments, and as a result areduction in PCB uptake into semi-permeable devices was observed.

The NAVFAC study was done toidentify any unforeseen problemswith activated carbon application,PCB resuspension and samplingtechniques in preparation for a larg-er demonstration project that will befunded by the EnvironmentalSecurity Technology CertificationProgram (ESTCP) in 2005-2007.The ESTCP project seeks to demon-strate that the activated carbonamendment will reduce PCB bioac-cumulation as previously observed inthe Luthy lab. If this in situ remedi-ation strategy is found to be success-ful, it may circumvent the need to doexpensive dredging and controversialdisposal of sediments containingPCBs and other similar hydrophobicorganic contaminants.

In addition, Luthy group graduatestudent Lei Hong has begun a proj-ect with sediments from Lake Unionin Seattle, WA. Sediments in the lakecontain one or more contaminantsabove sediment quality values, andthe primary chemicals of interest areheavy metals and polycyclic aromat-ic hydrocarbons (PAHs). This proj-ect will help assess the nature of PAH

contamination in the sediments ofnorthern Lake Union, especially theregion surrounding the Gas WorkPark site. Lei's previous work, pub-lished in ES&T in 2003, examinedthe aqueous partitioning of PAHs inlampblack-impacted soils from fivesites in California that formerlyhoused oil-gas process operations.That study provided a mechanisticunderstanding of PAH sorption onaged lampblack residuals at formeroil-gas plant sites and provides aframework for future assessments ofPAH leaching potential and risk atsuch sites. Based on her previouswork and her knowledge of PAHsorption to black carbon materials,Lei will examine the role that lamp-black and other black carbonaceousmaterial like coke, coal, charcoal andsolid tar play in controlling therelease of sediment-bound PAHs inthe lake sediments to the aqueousphase. The results of this researchwill provide a site-specific character-ization of the PAH contamination innorthern Lake Union sediments thatwill be used in the future site riskassessment and cleanup goal estab-lishment.

Dick Luthy, PhD studentPamela McLeod, and RodMillward of the U.S. ArmyCorp. of Engineers, collectsediment at LauritzenChannel, Richmond, CA,adjacent to San Francisco Bay.

News from the Luthy group

In September, 2004 the Departmentof Civil & EnvironmentalEngineering welcomed its first classof masters degree students to thenewly established Atmosphere &Energy Program. Professor Mark Z.Jacobson (EFMH) initiated themerging of CEE's separate, smallerprograms in energy and atmosphereafter he and others realized that thesenaturally related programs wouldsurely benefit from the close connec-tion among research projects andfaculty expertise that a combinedprogram would produce. Professor

Gil Masters (EES), who had been along time advocate of energy inCEE, provided significant input forthe merger, with the support ofProfessor Lynn Hildemann (EES).Professors Criddle and Spormannare also among the program faculty.

Rather than designing their ownmajors as required in the past, stu-dents can now graduate with anM.S. or Ph.D. in Civil &Environmental Engineering, withemphasis in Atmosphere & Energy;undergraduates can focus on atmos-

phere and energy.

As the diagram on its Website[http://www.stanford.edu/group/atmosenergy/] shows, the new pro-gram is linked closely to other pro-grams within and outside CEE,offering increased opportunities forcollaboration and interdisciplinaryresearch.

Atmosphere & Energy Program - a winning combination

New

Pro

gram

5page

Raising awareness of the importance of science andengineering education for the country's future andstimulating interest in these fields among elementaryand high school students are among the major goals ofthe National Science Foundation (NSF), and efforts toachieve them form an integral part of all NSF fundedprojects. Professors Martin Reinhard, Craig Criddle,Alfred Spormann, Ali Boehm, Dick Luthy, and theirresearch teams working on the NSF funded Center ofAdvanced Materials for Water Purification with Systems(WaterCAMPWS) and related water research, are excit-ed about their plans to meet this challenge within thelocal community. The groups are planning several cre-ative programs that will help teachers bring the scienceof sustainability into the classroom, help students of allages appreciate the effects of their actions on the envi-ronment, and train graduate students at Stanford tocommunicate the concept of “sustainability” to mem-bers of the community. Descriptions of three of theseprojects follow and there will be further details in theNewsletter as others are launched.

A spring quarter class for Stanford graduate engineeringstudents entitled Teaching Science Literacy for aSustainable Society forms the core of the Stanford pro-grams. Its objective is to teach graduate students how tocommunicate scientific principles to middle and highschool students and the general public, with particularemphasis on the environment and the sustainability ofwater resources. Meeting this objective will involvecoursework in the educational process including cur-riculum development, learning styles, tailoring contentfor specific audiences, oral and visual communication,the role of scientists and engineers in media communi-cations and inquiry-centered learning. In terms of thespecific topic of sustainability, the class will design mod-ules aimed at middle and high school students focusingon drinking water issues.

The class will be a seminar co-taught by Criddle andReinhard, with support from prominent local educators;Naoko Munakata, a graduate student working withReinhard, is coordinating the program. Students will puttheir skills into practice in a workshop after the seminarin which they will work with local community partnersto develop educational modules. Class partners includethe Santa Clara Valley Water District and the San JoseTech Museum of Innovation where a second segment ofStanford's efforts to reach out to middle and high schoolstudents is being developed.

In June 2004, the Tech Museum began planning a proj-ect entitled “Green by Design” with the aim of “…chal-lenging the notion that technology is inherently destruc-tive”. The exhibit, scheduled to open in April 2006, willtarget middle school children, but will attract andinstruct people of all ages. The designers envision dis-plays that will show how to work with nature rather than

against it and how to create a sustainable environ-ment with innovative and advanced technologies.The theme fits neatly with the goals of Stanford'sInstitute for the Environment and CEE and its con-cept of engineering for sustainability, and both arecontributing. At the same time it offers the StanfordWaterCAMPWS team an opportunity to providesupport and expertise for a project that will greatlybenefit the community by educating a new genera-tion (and an older one) in ways to live, work anddesign sustainably.

Jenny Nyman, a graduate student working withCriddle, is coordinating the Stanford group that willwork with the Tech Museum in setting up exhibitsrelated to water pollution and treatment, creatingactivities such as simple experiments to test waterquality, and answering questions posted online at themuseum. By providing scientifically groundedadvice, the group will help ensure the integrity andfeasibility of exhibits and programs as they are devel-oped. The Rooftop Wetlands, on the rooftop of themuseum, will be a focal point of their project. It willbe a wetlands ecosystem with native plants, trees andfish showing the impact wetlands have on naturalwater systems, what leads to water pollution, howwater can be purified and reused. The group will alsohelp set up exhibits displaying novel, environmental-ly sound designs such as membranes for water purifi-cation, and others demonstrating the destructiveeffects on the environment and ecosystems of tech-nology and our lifestyles, such as the large amountsof garbage produced, non-biodegradable products,and expanding landfills.

A third segment involves collaboration with theIndustry Initiatives for Science and Math Education(IISME). This Bay Area consortium “…exists toaddress the critical need for a strong, highly skilledworkforce in mathematics, science and technologicalfields” by giving local teachers opportunities toexpand and refine their skills and thus improve class-room instruction. Stanford's 10-week summer pro-gram will give local high school teachers the chanceto conduct research in a Stanford laboratory. With

the guidance of faculty, teachers will work in the lab fourdays per week and spend the fifth day in group activitiessuch as seminars or field trips. Financial support for theteachers will be provided through fellowships fromWaterCAMPWS and related projects.

to stim

ula

te in

tere

st in

EES Professors and theirstudents are designing

science &engineeringamong local school children…

creativeways

Since its founding in late spring 2003 by EES grad-uate student Sophie Walewijk, the StanfordChapter of Engineers for a Sustainable World

(ESW) has become a flagship chapter for the nationalorganization. Across the country, ESW mobilizes scien-tists and engineers to address problems faced by develop-ing communities. With its experienced and creative engi-neering faculty, its commitment to environmental stew-ardship, and its legacy of social entrepreneurship,Stanford has proved to be the ideal partner for ESW.

ESW-Stanford kicked off the academic year last fall whenover 600 students, professionals, and academicians par-ticipated in the 2004 National Engineers for aSustainable World Conference, held here on campus.Nearly 100 presenters shared their expertise intechnology-based development work withparticipants via presentations, hands-onworkshops, and keynote addresses.Participants said they were inspired by theimpressive array of presenters, and enjoyedthe first-of-its-kind gathering for thoseinterested in applications of technology todevelopment issues.

The theme "Solutions for a Shrinking Planet: SustainableEngineering and Enterprise for Human Development"shaped a conference in which scientists, engineers, andentrepreneurs explored creation and implementation oftechnology-based solutions to concerns of developingcommunities. Discussions of appropriate solutions, envi-ronmental concerns, and local/global market forcesframed a holistic approach to the broader goal of secur-ing basic human rights for every individual on the plan-et. The conference highlighted the rapidly growing groupof socially and environmentally concerned students andprofessionals around the nation and world.

Notable speakers included William McDonough andMichael Braungart, founders of McDonough BraungartDesign Chemistry and co-authors of the influentialCradle to Cradle: Remaking the Way We Make Things.Recent McArthur Fellowship winner Amy Smith,Whirlwind Wheelchair's Ralf Hotchkiss and KurtKornbluth, Berkeley energy guru Dan Kammen, theAcumen Fund's Yasmina Zaidman, and sustainableenterprise expert Stuart Hart presided over highly popu-lar sessions. The conference also showcased the greaterStanford community: alumni Martin Fisher (co-founderof ApproTEC) and Ross Evans (founder of Xtracycle)presented a keynote speech and an overflowing work-shop, respectively. Current Stanford professors RayLeavitt, Gary Schoolnik, and James Patell (among

numerous other Stanford affiliates), as well as students

Scott Cannon and Kevin Hand, presented their ownwork with developing communities.

Since the conference, the past year has been a wild suc-cess. Last spring, ESW-Stanford launched a class throughthe Civil and Environmental Engineering Departmententitled Design for a Sustainable World (CEE177s/277s), in which students work on technology-baseddevelopment projects. After two quarters of success, weare working to make this course a permanent fixture oncampus. Beyond the classroom, we have arranged over 20presentations by experts from various fields, attractingaudiences from all backgrounds. Our high profile this

year has led to a huge increase in membership: atpresent, we have over 400 Stanford members

involved in some way with ESW-Stanford,and we recently helped launch a BayArea Professional ESW chapter. All thismeans more people-power for effectingreal changes!

Currently, we have several workinggroups assessing how Stanford students,

affiliated faculty and staff, and local profes-

sionals can best help the tsunami relief effort transitionfrom disaster relief into sustainable rebuilding over thecoming months and years. We have been researching andworking with contacts in the Andaman and NicobarIslands, and our work for the next two quarters (includ-ing speakers and the class) will focus on tsunami-relatedresearch and needs assessment in that region. We are ded-icated to creating a project team to help with the difficulttask of long-term recovery and future disaster-prepared-ness. Beyond our technical project focus, we are also co-sponsoring a public panel series with Stanford Studentsfor Relief, VIA, and the Haas Center for Public Serviceentitled “After the Waves,” which will address variouscomponents of post-tsunami relief and recovery.

For more information on our chapter and our activities,you may visit our website at http://esw.stanford.edu.Stanford University as a whole is working in many waysto be a steward for global service and sustainable develop-ment, and we strongly believe that engineers and scien-tists have much to add to this. We look forward to con-tinuing our partnership and growing for many years tocome.

6page

Eng ineers for a

Sustainable World ise x p a n d i n g …

By Sophie Walewijk and Jennifer Burney, Stanford chapter

In mid-November, Chris Higgins,Jeanne Tomaszewski, Pam McLeod,and Sarah Rubinfeld traveled toPortland, Oregon to participate inthe 25th annual meeting of Societyfor Environmental Toxicology andChemistry (SETAC). Conference par-ticipants included representativesfrom academia, business, and govern-ment, in such diverse fields as ecotox-icology, risk assessment, environmen-tal chemistry, and environmentalmodeling.

Jeanne, Chris, and Sarah presentedposters detailing their work withremediating DDT-contaminated sedi-ment, determining environmentaltransport and fate of perfluorinatedorganics, and detecting nitromusks inthe environment, respectively. Pamdelivered a 20-minute oral presenta-tion entitled “ReducingBioavailability of PolychlorinatedBiphenyls to Clams” in the session“Contaminated Harbor and RiverSediment”.

Pam's talk described work she's doneto investigate activated carbonamendment as a remediation strategyfor sediments contaminated withpolychlorinated biphenyls (PCBs).Using this strategy, activated carbonis added to contaminated sedimentwhere it out-competes natural sor-bents to bind and sequester PCBs.When PCBs are sorbed to the addedcarbon particles, they are much lessavailable for uptake into the watercolumn and biota. In absorption effi-ciency studies previously performed,Pam showed that when the clamMacoma balthica ingested activatedcarbon particles spiked with a tetra-chlorinated PCB, less than 2% of thePCB was taken up into the clam's tis-sues (McLeod et al., 2004. Environ.Sci. Technol. 38: 4549). When sheexposed the same species of clam tosediment from Hunters Point NavalShipyard (San Francisco Bay, CA), shefound that contacting the sedimentwith activated carbon for one monthreduced PCB 28-day bioaccumulationin the clams by up to 80%.

Additional tests with Macoma andHunters Point sediment investigatedthe effects of activated carbon particledose and size on the treatment effica-cy. In general, higher dose and small-er diameter particles resulted in lowerPCB uptake by the clams.

As Pam explained in her presenta-tion, her work with clams comple-ments prior physicochemical tests(aqueous equilibrium, semi-perme-able membrane devices, flux) andbiological tests (worms, amphipods)performed by colleagues at Stanfordand the Army Corps of Engineers'Waterways Experiment Station(WES). Taken together, the positiveresults of this body of experimentsprovide multiple lines of evidencesupporting activated carbon amend-ment as a novel in-situ PCB remedia-tion strategy. A field-scale trial is cur-rently underway at Hunters PointNaval Shipyard to assess the effective-ness of the technique under field con-ditions.

7page

Reducing bioavailability of polychlorinated biphenyls to clams

EES and CEE are fortunate to havePhil Gschwend, Ford Professorof Engineering in Civil &Environmental Engineering atMIT, as a Shimizu VisitingProfessor. He will be at Stanfordfrom mid-January to mid-June thisyear.

Gschwend's area of interest is thebehavior of organic chemicals inthe environment. In particular, heworks to understand how organiccompounds move about, interactwith solids, and are transformed.The overarching objective is toquantify our exposures to these sub-stances.

One very effective way of measur-ing human and ecosystem expo-sures to these chemicals is to usecommon plastics like polyethylene.

Analysis of such plastic after it hasbeen exposed to air, water or sedi-ment for a period of time indicatesthe amount of chemical exposure inthose locations, because the plasticabsorbs the molecules. Using thedata from these analyses can help usdecide whether sites are hazardouswith respect to toxic substances-andjust how much effort and moneymust be invested in cleaning it up.See “Plastic packaging helps moni-tor ocean pollutants”.

Gschwend, co-author of the text“Environmental Organic Chemistry”,has three main goals for his time atStanford. The first is to improve onhis textbook by developing a solu-tions manual for some of the text'sproblems. Another goal is to con-tinue his research into exposureassessments, particularly at siteswith contaminated sediments.

Lastly, he hopes to develop collabo-rations for his interest in establish-ing methods for antici-pating the environ-mental impacts ofnewly designedchemicals and materi-als, including thoseassociated with nan-otechnologies. Hisaim is to collaboratewith industry onresearch into the various ways aproduct, and the processes used tomake, use, and dispose of it, mightaffect the environment before thatproduct is fully launched in themarketplace. The intent is not toban potentially damaging chemicalsand materials, but to look at smartways to design and use them, there-by lessening their impacts while stilltaking advantage of their benefits.

Philip Gschwend,Shimizu VisitingProfessor

VViissiittiinngg pprrooffeessssoorr

- Pamela McLeod, Ph.D. student working with Professor Dick Luthy, describes her presentation to the 25th annual meeting of SETAC.

Daniel Yeh, until December 2004 a postdoc with Professor Craig Criddle, has taken a position as assistant pro-fessor in the Dept. of Civil & Environmental Engineering at the University of South Florida where he will continuehis research focusing on biological and membrane processes. He welcomes visitors to his new location: “Please do makea point to stop by if your travels take you to Florida. Tampa is just a short drive from Orlando, home to many WEFand AWWA conferences.” He can be reached at dhyeh@eng.usf.edu; his Web address ishttp://www.eng.usf.edu/~dhyeh.

John Zimmerman, Ph.D. 2004, writes from Virginia: 'My family has settled in somewhat here in Virginia,and we are enjoying life. Kristi is making friends, Abraham is enjoying kindergarten, Noah likes his preschool, andMartha is prattling away. Admittedly we miss Stanford; we had such a great time there.

With regard to my work, I spend about half my time doing "due diligence" work. When a company goes up for sale,we visit the facility (facilities) and try to quantify any potential environmental liabilities, such as contaminated soil orground water, or compliance issues, such as the need to obtain permits for water or air emissions. The other half ofmy time I spend in a variety of work, including litigation support, risk assessment, and other sundry projects. I maybe doing some sediment work in the somewhat near future. I enjoy the work. It has been interesting to be involvedin a wide range of projects.' He can be reached at jzimmerman@environcorp.com.

Jerry L. Jones, M.S. 1974, writes: “After spending almost 20 years at SRI, the last 10 as the head of the chem-ical engineering lab and development center, I spent about 8 years as head of EHS for Raychem and for the last 4+years have been the VP of operations for a startup company in South San Francisco making liquid crystalline opti-cal coatings with a lot of interesting chemical engineering challenges. [I will be leaving Optiva soon] to join Genentechas the head of EHS for their manufacturing operations to put in place an integrated process risk management systemmuch like what I did for Raychem.” He can be reached at jjonespe@sbcglobal.net.

Robert Canales, Ph.D. '04 Robert is currently an Alonzo Yerby Post-Doctoral Fellow in the HarvardUniversity School of Public Health, Boston where he has been working on several modeling projects funded by theUSEPA. He is participating in the Spring course on Introduction to Human Exposure Analysis, CEE276, where hewill give lectures on dermal exposure.

Environmental Engineering & ScienceS TA N F O R D U N I V E R S I T YB-9,Terman Engineering CenterStanford, CA 94305-4020

Alumni news…