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  1. Tracking/displaying Grind2Energy data.

    Associated Project(s): 
    Grind2Energy

    Hi Thurman,

     

    A recurring topic that’s come up in our zero waste conversations has been the desire to track and display more metrics under the zero waste theme on the iCAP Portal. Grind2Energy data was one metric that was brainstormed, as it relates closely to our Zero Waste Objective 5.5, “Plan for organic waste.” Since Dining already tracks that data, it would be easy for us to get it up on the portal. Would this be something that you’d be in favor of us doing? If so, any input on how the data is displayed (by month, or annually)?

     

    Thank you,
    Daphne

     

     

     

     

    Hi Daphne,

     

    Fate has it that I will be seeing the Grind2Energy people tomorrow at the National Restaurant Association show in Chicago. I would like to see if this is something that can by automatically updated from our system. They may have some functionality for this and if not, it may be some thing they could create and would be a selling point for them. I will find out the possibilities. I would rather that this be auotmatic so that the data is always current and nobody can "drop the ball" along the way.    

     

    THURMAN ETCHISON
    Assistant Director of Dining - Facilities and Equipment
     

     

     

     

     

  3. Wind Turbine Charging Station

    Associated Project(s): 
    Wind Power on Campus

    This morning, I met with Ben Isabel, the Chief of Staff for State Senator Laura Fine.  Ben is moving forward looking for grant money to fund our project at UIUC.  He is talking to the Department of Transportation which we both think should be interested given the interest of President Biden with more EVs.

     

    Ben hopes to hear something positive within a week or so.

     

    Regards,

     

    George

    ---------------------------------

    Good Morning,


    I am forwarding the message I received over the weekend from George.  Cheri, as you have had discussions with George on moving forward with this, who does he consider to be his campus partner when he refers to “our project at UIUC”  Is this research park?   The original turbine on campus was accepted as a donation through isee, but we (Paul Foote and Frank Colacicco) discussed the condition of the unit, challenges and costs as excessive.   Initially, a SSC application was also submitted and not funded in our efforts.

     

    As George is working earnestly in securing funding I am concerned if he is accurately communicating a University commitment / partnership.

     

    Best,
    Tim

     

  4. WPP Building 1258 geothermal metering system installation request

    Associated Project(s): 
    Geothermal at WPP

    Good morning,

    Here is what I found.

    Al

     

    --------------------

    Hi Robbie,

     

    Here are the engineering documents and pictures of the heat pumps. There are 5 heat pumps.

     

    Andy

    -------------------

    Team,

     

    Here's another geothermal system needing to be metered. It appears to need both ST, RT temperature RTD, and flow meter installation and tied into alpha controller and programming. 

     

    Thanks.

     

    Robbie Bauer

    ----------------------------

    Andrew,

     

    The team surveyed it this week and a meter is planned to be installed shortly.  I’ll keep you updated.

    -----------------------------

    Hi Yu-Feng,

     

    Robbie Bauer from F&S is finishing the meter install on the last geothermal system on campus. So going forward we will have access to data from all the systems. At the very least, inlet and outlet temperature, flow rate, and energy going into the borefield will be collected. Robbie is interested in calculating the annual energy avoidance for each system.

     

    Best,

    Andy

    ----------------------

    Thanks for the update.

     

    Yu-Feng

  5. Professor Yu-Feng Lin Featured on 'Wired' Article

    Associated Project(s): 
    Geothermal Battery at Energy Farm

    UIUC's Yu-Feng Lin was featured on a "wired" article. Andrew Stumpf explains, "The authors did a simulation for a residential district in Chicago. They don’t provide much detail about the geology and hydrogeology that is the basis for the geotechnical model. In Chicago, aquifer thermal energy storage (ATES) has yet to be used because groundwater is pretty scarce in the shallow subsurface and one would need to tap aquifers deeper in the bedrock. In the northern and western suburbs, the subsurface conditions in the glacial deposits is much better and I believe Kane County is looking into using the aquifers for a geothermal resource."

    The article can be found at: https://www.wired.com/story/the-massive-batteries-hidden-beneath-your-fe...

    UIUC newsletter: https://emails.illinois.edu/newsletter/32/64507332.html 

    The referenced article is attached.

    Attached Files: 

  8. Data from CIF Geothermal

    Associated Project(s): 
    Geothermal at the Campus Instructional Facility (CIF)

    Hi Morgan and Andy, I hope all is well.  I am going to give a presentation to Professor Abelson’s ENG 571 class next week and was wondering if you have any data regarding the geothermal system at the campus instructional facility?  Maybe it is on a website and apologies if that is the case.  Professor Abelson said the students might like some data and I think I have some data from Chuck on one of the Marine Corps base sites but having some data for CIF would be great too.

     

    Thank you,

    frank

    -----------------------------

    Hi Robbie,

     

    I would like to introduce you to my colleague Frank Holcomb who is a Senior Researcher at CERL and a PhD candidate in CEE. He is giving a lecturer in Prof. Abelson’s class next week and asking if he could get access to data from the geoexchange system at CIF.

     

    Thanks,

    Andy

     

    ---------------------

    David,

     

    Please work with Andrew Stumpf's group and allow access to DDC Data for CIF's geothermal system. See points descriptions below. 

     

    9k=

    • Please use the PPCL programs to determine the following values requested. I’m unable to get via Desigo so need DDC team assistance.
    • Temperature at inlet and outlet of the geothermal heat pumps
    • Flow rate in the geothermal loop
    • Heating or cooling load extracted from or ejected to the ground-side circulating liquid    


    Kate,

    Please work with Frank Holcomb in email below and allow access to all geothermal meters for Campus Instructional Facility. 

     

    CHW/HW production of the geothermal and HRC systems for #1545 below. 

    CHW/HW production of the geothermal and HRC systems

    1545-CHW3 CHW cooling added to HRC systems from GEO

    1545-HW2 HW heating added to HRC systems from GEO

     

     

    Thanks.

     

    Robbie Bauer

    ---------------------------------

    Bob/Shane,

     

    Is it possible to provide read only access to Mr. Holcomb for CIF BAS even though he is at CERL? It looks like he also has a UofI email address.

     

    Thanks

    David Hardin

     

  9. RE: Solar Panels

    Associated Project(s): 
    Install Solar PVs on NCPD

    Brent, Morgan,

    I am working with CSL on a small project for some solar panels near their satellite office in the North Campus Parking Garage. CSL mentioned that Canadian Solar is one of the approved suppliers to the campus.

     

    You probably know that Canadian Solar, in spite of its name, is mostly a Chinese supplier, although they have a more modest plant in Canada. The largest Chinese supplier is Jinko Solar, which in my experience is a bit better in quality.

     

    I am hoping we can spin up a higher-quality U.S. supplier, such as Sunpower, as an alternative to the various foreign providers.

     

    Philip T. Krein, Ph.D., P.E.

    ----------------------------------

    Hi Sush and Brian,

     

    I am working on this research project at the North Campus Parking Deck to put solar panels on the canopy on the outside of the south side of the building.  They will be feeding them into a research space to power servers.  They actually want to have the panels directly power a battery and then power the servers from the battery.  I provided the cutsheets of the panels we used at the President’s Shed.  These fit the weight and size dimension requirements.  As we have used them before, they are therefore “pre-approved.”  One of the researchers, Philip, is asking about using something different in the email below.  Can you please assist in a response? 

     

    Also, as far as I knew, we hadn’t done any large battery systems on campus.  Possibly that is incorrect, but in asking recently I came up with nothing.  Please take a look at the cutsheet for the enphase and see if we would be ok with this one.  If not, please provide some additional direction.

     

    Thanks!

    Brent.

    ----------------------------

    Brent,

     

    I’m not aware that we have approved “vendors” for solar panels nor for inverters and such equipment.  Also, I not aware of where we would have a PV system using storage, the few I’m familiar with are grid tie systems.

     

    How big of a system are they looking at?

     

    Brian Curtis Finet, PE

    ---------------------------

    Brian,

     

    We will still tie this to the grid as a back up, back up power supply.  They would have 18 panels total along that canopy. I know we don’t have any officially “approved” vendors, but since we used the ones at the President’s House, we had approved them through construction.  Originally the researchers picked out what they wanted, but the manufacturer didn’t want to deal with us, so I threw out using the ones we’ve already installed here at least once. 

     

    I am not 100% certain if this is to power 3 new servers with 3 new batteries, or 3 new servers, with only one battery.  Based on the last email, it appeared we would only be looking at one battery for the backup.  I can put you in touch with the MEP if you would rather talk directly.

     

    Thanks,

    Brent.

    ---------------------

    Brent,

     

    Apart from Brian’s comments, here some things I would consider if the owner has concerns and this is how I would plan on choosing a panel vendor.

    1. Panel Efficiency, Im talking about the amount of energy produced with respect to area. w/m2 (Also depends what type of panel polycrystalline or monocrystalline). Higher the panel efficiency higher is the energy produced per m2.
    2. Next is quality, Chinese panel have a reputation of being made of cheap material but Canadian solar has been good performing for its price. It can measured by knowing history of the panel performance.
    3. Warranty, I would compare at the 10 years manufacturer warranty and make sure there isn’t any expensive service contract involved. Also key to understand where so you have to send the panel incase you receive a faulty one.
    4. Panel specifications are another factor, compare characteristics like coefficient of temperature & power tolerance.
    5. Lastly, cost and aesthetics, since it is on the canopy I would think they want something pretty and cost, how much are they willing to shell.

     

    My final thoughts - Sunpower has a better rating, reliability and warranty compared to Canadian solar (last I checked its been a year or so) but it also comes at higher $$.

     

    Thanks,

     

    Sushanth Girini

  10. SCILL SSC application

    Associated Project(s): 
    Geothermal on Campus
    Student Sustainability Committee (SSC)

    All,

     

    Just my opinion, but the application tends to vilify Abbott Power Plant by stating that geothermal will “exceed” iCAP goals by “reducing dependance on the Abbott Power Plant”.

     

    Also stated in the application, “The project builds on a new paradigm established with the Campus Instructional Facility, expanding the network of deep green infrastructure and drastically reducing energy reliance on the Abbott Power Plant.”

     

    With the acceptance of Abbott Power Plant into the International Test Center Network for Carbon Capture (ITCN) early this morning in London, England, I think it is important to note that Abbott is involved in other carbon reduction technology development efforts.

     

    To continue to develop negative connotations regarding Abbott Power Plant with the campus community is counterproductive to the resilience of the Universities efforts and mission. I support the impact that geo-thermal can have to help us reach carbon neutrality, but I also support the fact that we still need Abbott to achieve the core mission of the University, and we need to continue to find ecological solutions that support our invested physical plant assets.

     

    Please continue to declare success regarding carbon reduction, but don’t make Abbott Power Plant the bad actor.

     

    Again, just my opinion.

     

    Respectfully,

    Rob

    Attached Files: 

  11. latest on geothermal at scill?

    Associated Project(s): 
    Geothermal on Campus

    Hi Jon,

     

    I heard they are maybe cancelling the geothermal at SCILL.  Is that accurate?

     

    Thx,

    Morgan

    ---------------------

    Hi Morgan,

     

    I have not heard anything about cancelling geothermal. It’s been developed to 90% CD’s as the building’s main source for heating and cooling.  

     

    I would be shocked if it was removed.

     

    Thanks,

    Jon

    --------------------

    Hiya,

    A little birdy said you two thought the geothermal in the military axis might be cancelled… very unlikely. 

     

    :-)  Morgan

    --------------------

    That’s what I heard from Stacey.  If they build the geothermal field, they still have to connect to chilled water AND pay the full fees right?  That’s what I heard.  Curious how that works. 

  12. Considerations for clean thermal energy

    Associated Project(s): 
    Use Clean Thermal Energy
    Solar Thermal at ARC
    Biomass Boiler at the Energy Farm
    Geothermal on Campus
    Grind2Energy

    There are a few examples of clean thermal energy in use on campus at this time. These include:

    • the solar thermal panels on the Activities Rec Center, heating the three swimming pools
    • the biomass boiler at the Energy Farm, heating the two story greenhouse on south Race Street
    • geothermal installations providing heating and cooling at the Fruit Farm Admin Building, the RIPE greenhouse, the Campus Instructional Facility, a few buildings at Allerton Park, the solar decathlon Gable Home at the Energy Farm, and a few rooms in the Hydrosystems Building
    • a wood-fired stove heating some maintenance buildings at Allerton Park

    We could expand these types of energy systems...

    • Additional geothermal installations are being planned for various places around campus, including a geothermal battery system at the Energy Farm.  The other geothermal locations in planning discussions now include the South Campus Center for Interdisciplinary Learning, a future greenhouse for CABBI, and the Doris Christopher Kelley Illinois Extension Building in the Arboretum.
    • The biomass boiler at the Energy Farm was designed with the anticipation of future expansion.
    • Solar thermal is a great option for our area of the planet, but it is not easy to integrate it in our existing energy enterprise.

    Another option for clean thermal energy is biogas, which UIUC contributes to locally through the Grind2Energy system, which takes food waste from the dining halls to the Urbana-Champaign Sanitary District (UCSD).  UCSD puts it through their anaerobic digester which captures the methane (a very strong greenhouse gas).  Currently, that captured methane is used to run an electrical generator, which provides power to the UCSD facility.  An alternative would be to upgrade the methane to pipeline quality and use the biogas a Abbott Power Plant on campus.  This is an expensive option that would require a lot of coordination and funding.

    Another strong option is a micronuclear reactor, which is being studies by the Grainger College of Engineering faculty and researchers.  This system could be integrated with the existing steam distribution system and provide ghg-free energy to campus.

     

  13. Zero Waste iCAP Meeting 3/10/2023

    Associated Project(s): 
    Zero Waste iCAP Team
    Tailgate Recycling
    Large-Scale Food Waste Composting
    Grind2Energy

    On January 30th, the Zero Waste iCAP team met to discuss final thoughts on the finished tailgate recycling recommendation, the feasibility of a large scale composting program on campus, and current work with the Student Athlete Advisory Committee (SAAC). 

    Meeting minutes are attached.

    Attached Files: 

  14. N-G Mailbag question: UI's sources of electricity

    Associated Project(s): 
    Stop Burning Coal at Abbott Power Plant
    Use Clean Power

    A representative from the News-Gazette reached out to Steve Breitwieser with questions regarding Abbot Power Plant:

    Please also see the attached spreadsheet with data on steam supplied buildings.

    Hi Kathy,

     

    Abbott Power Plant generates all district heating and almost 275,000

    megawatt-hours (MWh) of electricity each year using a high-efficiency

    cogeneration process, which simultaneously produces both steam and

    electricity. When the campus load for heat is highest during the

    winter months, the plant, along with the two utility-scale solar

    farms, provides almost all the electricity that the campus needs,

    with the remainder coming from wind energy that is imported onto the

    campus grid. Throughout the year, Abbott's sustainable cogeneration

    process supplies approximately

    85 percent of the total energy demand (steam and electricity) for the

    Urbana campus, which includes almost 50 percent of the overall electricity usage. The electricity not generated at Abbott, from

     on-site solar arrays, or acquired through a wind power purchase

    agreement is purchased through Prairieland Energy, a corporation

    solely owned by the University of Illinois Board of Trustees. More

    information about utilities production is available at https://fs.illinois.edu/services/utilities-energy/production.

     

     Happy Holidays!

     Steve B.

    --------------------------------------------

    Hi, Steve. As I'm assembling this week's column, I have several

     follow-up

     questions:

     

     Can you clarify what's meant by "district heating"?

     

     Does most of the steam generated by the cogeneration process end up

     heating some of the older buildings on campus? (I spent 20+ years in

     Mumford Hall and remember the sounds the pipes made at certain times of year.)

     

    Any idea of approximately what percentage of the campus' interior spaces are still heated with ssssssteam heat?

     

    I took a look at the website you mentioned, and have a couple of questions

     about that: What does  UES stand for?   And the website says, "During low

    campus demand for both heat and air conditioning, Abbott typically

     burns natural gas. During the winter months, when the campus heat load

     is highest, a combination of both coal and natural gas is necessary."

    Is that information still accurate? (I thought the coal scrubbers were

    no longer in use on campus...?)

     

     

    If it's not possible to get answers to me this week, that's OK; I can hold the item for next week.

     

    Thank you,

    KR

    ---------------------------------------

     Hi Kathy,

     

     I'll follow up on these in greater detail when everyone returns next week.

     

     UES is the acronym for the Utilities & Energy Services division that is within Facilities & Services. District heating is referencing the process used to distribute steam from Abbott to campus facilities through underground pipes.

     

    Steve B.

    ---------------------------------------

    Mike/Dave,

     

    There were a couple of follow of questions to this media inquiry from the NG before the break.  Can you help clarify the highlighted sections by Wednesday with any additional information? For the interior spaces question, let me know if you can explain that more precisely – on our website we say “More than 250 campus buildings use the steam produced at Abbott for their heating.” The UMP also indicates: From discussions with U of I staff, approximately 85% of the campus condensate is returned to APP (if that would be something to note from a process standpoint along with an explanation like below).

     

    Abbott uses gas turbines, natural gas-fired boilers, and coal fired boilers, recovering reject heat from electric generation to help produce steam. The plant pipes steam underground across campus to provide buildings with space heating, domestic hot water, sterilization, and more. Once used, the steam condenses into water and returns to the plant where it is recycled and reused.

     

     

    I could respond to the fuel item with what we have said previously…

     

    When the campus load for heat is highest during the winter months, natural gas and coal are utilized to meet the significant energy demand. The coal-fired

    boilers are also a part of research efforts, primarily related to carbon capture technology. Additionally, maintaining fuel flexibility provides the university operational reliability and the ability to respond to market factors for purchased utilities.

     

    Thanks for helping out with some more detail on this one.

    Steve B.

    -----------------------------------------

    Mark/Dave,

     

    Do you guys or maybe steam distribution know approximately what percentage of campus buildings are still on steam heat?

     

    Thanks

    David Hardin

    ------------------------------

    I have not seen a list. We will ask Steam.

     

    When time allows maybe we could add a column to note the steam yes or no. Hmmmmm Elizabeth stated Keith Erickson had a list and she recalls some sort of building database that listed utilities per building such as steam,  electricity from Abbot or Ameren, gas etc. It would be nice to find this.

     

    Dave

    ---------------------------------

    Mike/Frank,

     

    Are you guys aware of the list/database Dave referenced below and if so where it is located?

     

    Thanks

    --------------------------------

    David,

     

    I would think that EBS would provide a list of building that are served with steam, based on the meters in EBS.

     

    Tony and/or Kate,

     

    Can you clarify/confirm how many buildings on campus are served with steam from EBS?  The email string below indicates that the Util. Master Plant said over 250 buildings are served by steam from Abbott. Is that still the case?

     

    Mike Larson

    ------------------------------

    According to EBS, there are 175 active steam meters. Some buildings have multiple meters so there would be fewer buildings than that.

     

    Thanks,

     

    Kate Brewster

    ------------------------

    Anthony should be able to run a query that will give us an exact number from our last billing cycle.

     

    Regards,

     

    Tony

    -----------------------------

    As of our last EBS billing the count is 147.  I have attached the file that supports this number for your reference.

     

    Regards,

     

    Tony

    ------------------------------

    Attached Files: 

  15. Advantages of hot water versus steam within buildings

    Associated Project(s): 
    Steam System Maintenance
    Use Clean Power

    Below is an email exchange between Jim Sims and Tom Keller:

    Mike or Tom,

     

    The EMT is discussing the advantages of converting building heating systems from steam to hot water with steam distribution. Would one of you be able to clarify this benefit?

     

    Thanks,

     

    Jim

    ---------------------------

    Jim,

     

    Hot water is more efficient than steam because it is easier to control. This also adds comfort to the occupants. Steam can be easier to leak and it is hotter, so there are some small safety concerns. Steam tends to be a bit noisier than hot water. Hot water can be easier to maintain than steam.

     

    There are quite a few other reasons. This is why hot water heating systems have become the industry standard.

     

    Thanks,

     

    Tom

    -----------------------------

     

    EMT,

     

    I asked Tom Keller and Mike Halm to provide some feedback regarding the advantages of hot water versus steam within buildings. Please see Tom Keller’s response below for our information. Please let me know if we would like for Tom would like to further explain “quite a few other reasons” or his primary benefits listed below.

     

    Thanks,

     

    Jim

  16. Update on drilling

    Associated Project(s): 
    Geothermal Battery at Energy Farm

    From: Stumpf, Andrew J 
    Sent: Wednesday, March 01, 2023 7:37 PM
    To: Rubin, Joshua ; Mies, Tim ; Lamb, Jeremy ; Klein, Bradley Dean 
    Cc: Lin, Yu-Feng ; Weckle, Amy Lorraine; White, Morgan 
    Subject: UTB at the Energy Farm

     

    Hi folks,

     

    Here is an update. Dom and Todd worked to get half of the hole grouted today and now wait until tomorrow morning to see if the battery floats, or not. Theoretically it should not, but we will see. They will start up again at 8 am if anyone is over that way. Xiaobing and Tony have gone back to Tennessee.

     

    Best,

    Andy

  18. notes on solar over carports

    Associated Project(s): 
    Solar at Willard Airport

    Michigan Sate University shared some lessons learned from implementing solar car ports on their campus. 

    • make sure your carport roof covers the fll parking space, because they had icicles form on the edge and fall onto a vehicle, which damaged the vehicle
    • snow removal equipment may hit the roof and damage the structure
    • one time an RV hit the structure during tailgating

  19. Invitation to collaborate on a presentation

    Associated Project(s): 
    Illinois Geothermal Coalition

     

    I was contact by some colleagues withy Future Earth – Taipei (https://futureearth.org/about/who-we-are/international-offices/taipei-global-hub/) for a potential webinar series.  I suggested them to think about campus sustainability actions as a living laboratory and they are very intrigued by this idea.  They asked me to suggest speakers and I am thinking about Jack, Morgan and Andy.  So, I would like to ask if you are interested.  Some of their previous talk can be found at https://www.facebook.com/futureearth.org/.  All the communications and activities will be between 6pm-11pm CST due to time difference.  I am happy to have more discussion if you are interested.

     

    Presenters:

     

    Ms. Morgan White, https://fs.illinois.edu/resources/newsroom/2021/10/14/white-named-acting-director-of-the-f-s-capital-programs-division

    Mr. Jack Reicherts, https://studentengagement.illinois.edu/student-sustainability/ssc/team/reicherts/

    Dr. Andrew Stumpf, https://directory.illinois.edu/detail?userId=astumpf@illinois.edu&widgetId=15

    Dr. Ping-Yu Change, https://scholars.ncu.edu.tw/en/persons/ping-yu-chang

    Dr. Jui-Pin (Rubin) Tsai, https://www.bse.ntu.edu.tw/member?teacher_id=48&page=1

    Dr. Yu-Feng Forrrest Lin, https://directory.illinois.edu/detail?userId=yflin@illinois.edu&widgetId=15

     

    Cheers,

     

    Yu-Feng F. Lin

    Director

        Illinois Water Resources Center

    Principal Research Hydrogeologist

        Illinois State Geological Survey

    Clinical Professor

        Civil and Environmental Engineering

    Research Professor

        Natural Resources and Environmental Sciences

    University of Illinois at Urbana-Champaign

  20. Invitation to collaborate on a presentation

    Associated Project(s): 
    Illinois Geothermal Coalition

     

    I was contact by some colleagues withy Future Earth – Taipei (https://futureearth.org/about/who-we-are/international-offices/taipei-global-hub/) for a potential webinar series.  I suggested them to think about campus sustainability actions as a living laboratory and they are very intrigued by this idea.  They asked me to suggest speakers and I am thinking about Jack, Morgan and Andy.  So, I would like to ask if you are interested.  Some of their previous talk can be found at https://www.facebook.com/futureearth.org/.  All the communications and activities will be between 6pm-11pm CST due to time difference.  I am happy to have more discussion if you are interested.

     

    Presenters:

     

    Ms. Morgan White, https://fs.illinois.edu/resources/newsroom/2021/10/14/white-named-acting-director-of-the-f-s-capital-programs-division

    Mr. Jack Reicherts, https://studentengagement.illinois.edu/student-sustainability/ssc/team/reicherts/

    Dr. Andrew Stumpf, https://directory.illinois.edu/detail?userId=astumpf@illinois.edu&widgetId=15

    Dr. Ping-Yu Change, https://scholars.ncu.edu.tw/en/persons/ping-yu-chang

    Dr. Jui-Pin (Rubin) Tsai, https://www.bse.ntu.edu.tw/member?teacher_id=48&page=1

    Dr. Yu-Feng Forrrest Lin, https://directory.illinois.edu/detail?userId=yflin@illinois.edu&widgetId=15

     

    Cheers,

     

    Yu-Feng F. Lin

    Director

        Illinois Water Resources Center

    Principal Research Hydrogeologist

        Illinois State Geological Survey

    Clinical Professor

        Civil and Environmental Engineering

    Research Professor

        Natural Resources and Environmental Sciences

    University of Illinois at Urbana-Champaign

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