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The Sweet Spot

Dr. Kenneth Elgersma, REAP mentor, & Anissa Forero, REAP apprentice.

Dr. Kenneth Elgersma, REAP mentor, & Anissa Forero, REAP apprentice.The University of Northern Iowa is unlike other higher education institutions.  It is a small enough school that professors can truly get to know students and help them in their coursework and careers.  Yet, it is large enough to be able to provide opportunities such as community engagement, internships, and involving undergraduate students with research on campus.  “UNI is in the sweet spot,” says Biology professor Dr. Kenneth Elgersma.  He continues, “Resources are available to do top-notch research and students have the opportunities to get research experience.  UNI does this really well.” 

Undergraduate research is valuable to employers.  Students are able to develop their skills of logical thinking and problem solving.  “This is one of the reasons that I do this.  It is valuable to the students and gets them ready for the next step in their careers,” Dr. Elgersma shares.  Undergraduate research is also essential to continue on to a masters program in most sciences.

Knowing how valuable opportunities like this are, the United States Army Education and Outreach Office in collaboration with UNI STEM brought the STEM REAP (Research and Engineering Apprenticeship Program) to UNI in 2017.  This program focuses on providing opportunities to talented but traditionally underrepresented high school students.  The students obtain research experience, receive training, and encouragement to obtain a higher education degree in a STEM field. 

Anissa Forero presenting REAP cattail research.Dr. Elgersma was a faculty mentor in the UNI REAP program in the summer of 2017.  Anissa Forero from Cedar Falls High School was selected and given the opportunity to work with Dr. Elgersma on his current research.  Anissa’s tasks involved extracting DNA from native and invasive species of cattails.  She then amplified the DNA in a process called polymerase chain reaction.  Once she had enough DNA, she was able to analyze it.  The majority of the cattails that we see in Iowa’s wetlands, ditches, and other waterways are invasive species.  The invasive cattails are similar in appearance to the native cattails.  It is becoming even more challenging to identify these as the cattails create new hybrids.  Analyzing DNA is the only definitive way to tell some cattails apart.  Once this method is perfected, it may provide an additional tool to help manage wetlands.  Anissa’s work contributed to solving this challenge.

The largest challenge of the REAP program is time.  Many scientific research projects take years to finish, but the REAP program is only eight weeks; not long enough to take a project from start to finish.  However, students are able to complete a small study that contributes to a larger project.  This is what Dr. Elgersma has done as a mentor.  He has found ways to plug students into one if his existing research projects.  This particular project is building off of Dr. Elgersma’s post-doc research.  Anissa’s cattail DNA research is part of understanding if and how excess nitrogen in Iowa is affecting and possibly promoting the non-native cattail invasion. Students, like Anissa, may not get to see the beginning or the end of the big project, but they will have contributed a supporting study and will be able to see how it fits into the project as a whole. 

Cattail ResearchUNI STEM is currently taking applications for the summer 2019 REAP-STEM program.  These positions are highly competitive and include a stipend for the student.  For more information, visit the UNI STEM website:

Ginger L'Heureux, UNI STEM Graduate Assistant
Posted: 12-11-18

Beyond Research, Action

Community Energy and Climate Action Program Capstone Student

Emerging Innovation AwardThe University of Northern Iowa Conservation Corps is an initiative funded through a grant from the Roy J. Carver Charitable Trust.  The Corps’ purpose is to engage UNI students, faculty and staff alongside members of the community to examine some of the largest environmental challenges we face.  Eric Giddens, Energy Education and Outreach Coordinator for the Center for Energy and Environmental Education (CEEE) at UNI is leading this three-year project. 

There are four different areas in which the Conservation Corps works, including the Community Energy and Climate Action Program.  This program works with communities to develop personalized climate action plans.  Making changes at the state or federal level are important, but are sometimes out of the reach of the general public.  Impacting actions people take in their home and the services a community provides are a way to start positive change for our environment.  The UNI Conservation Corps works with local governments to create a set of strategies that they will implement as their budgets and time allow.  They also estimate the measurable impacts on reducing greenhouse gas emissions. 

StudentPresentingtoCityThe Community Energy and Climate Action Program is unique because of the involvement of UNI faculty and students.  It provides students with real-world experience, directly serving Iowa’s communities.  Some students work directly within the program as student fellows.  Other students are exposed to the program through their coursework.  The program is built into some courses, such as Dr. Alex Oberle’s Regional Analysis and Planning course in the Geography Department.  In Oberle’s course, students have completed greenhouse gas inventories for communities, provided possible reduction strategies, and calculated emissions reduction potentials for each  strategy.  These communities can then choose to investigate further and select which strategies to implement.

Changing the ways communities plan future development is a way to reduce emissions.  Master plans with roundabouts, bike trails, and more accessible public transportation are key to reducing the dependency on personal travel and the impacts that vehicles have.  Roundabouts lessen the amount of idle time on the road which reduces fuel use.  Bike trails encourage commuting by providing a safer way for bikers to commute as well as provide additional recreational opportunities.  Better and more accessible public transportation systems encourage more use, therefore reducing the number of vehicles on the road.  All of these energy reductions start with community planning. 

At the community level, collectively, residents can make a huge impact.  The preferable way is to simply reduce consumption.  Currently, our population has an unsustainable consumption level of energy, food, and products.  A cultural shift in how people live can make a significant difference.  Residents can start by utilizing efficient technologies and renewable sources of energy.  

CapstoneStudentIn the spring of 2018, the UNI Conservation Corps won the Iowa Campus Compact (IACC) Emerging Innovation Award for the Community Energy & Climate Action Program.  The criteria for this award is a recent project making unique and innovative contributions.  Awardees must also demonstrate strong future potential.

The IACC is a statewide association of college and university presidents providing leadership for the civic mission of higher education.  The goals of the IACC are to encourage students to become engaged citizens, develop community partnerships resulting in student learning, community impact, and institutional success.  IACC awards individuals and groups for engaging communities and demonstrating leadership, service, and innovative ideas on college campuses across Iowa.  The UNI Conservation Corps fit this perfectly.

CapstonePresentationFor the past three years, the Corps has been able to investigate the feasibility and effectiveness of the Community Energy and Climate Action program.  It has also hosted several invited speakers which has set the stage for the creation of the Aldo Leopold Distinguished Lecture Series, which will continue after the Roy J. Carver Trust grant has ended.  Some professors have made UNI Conservation Corps projects a permanent part of their course curriculums.  It is the hope of the UNI Conservation Corps that work in all four areas will be self-sustaining while continuing to assist governments, involve students and educate the public. 

UNI Conservation Corps Current Work



Ginger L'Heureux, UNI STEM Graduate Assistant
Posted: 12-06-18

Kidd at Heart

Layered NanoScience

Vintage Circuit BoardMath, chemistry, physics, and engineering mixed with logic and rational thought are the perfect combination for a rewarding career.  This is what Dr. Tim Kidd of the University of Northern Iowa Physics Department looks forward to everyday.  He recalls, as a 10-year-old, being asked what do you want to be when you grow up and answering “I want to be a mad scientist.” He knew he wanted to have cool and crazy toys and be able to “make stuff.”  Mission accomplished. 

3D Printed ChocolateDr. Kidd supervises three physics labs.  Within these labs he conducts research and experiments with the assistance of UNI undergraduate students.  He encourages the students to play with the resources and tools in the labs.  He estimates that the labs are worth about two million dollars, which he says is “Amazing.  It is beautiful to have that many things [equipment and tools] available.”  The undergraduates who assist with his research are not only physics majors but include every science, math, and even some business majors.  Dr. Kidd says “If you are interested in science and an undergraduate at UNI, look into working with us because we have a lot of fun toys.  As long as you are curious and can work independently, we want you.”

Dr. Kidd’s favorite thing about working with undergraduates is the moment when they realize that they may know more about an experiment than he does.  At first, students see questions about experiments as if they are test questions.  They believe he already knows the outcome.  Sometimes this is the case, but Dr. he reminds the student that he did not do the experiment himself and does not know what was observed until the student shares what happened in the experiment. 

Dr. Kidd tells the students, “Don’t let me pollute your findings.  My intuition could be totally wrong.  If you are wrong, who cares?  It doesn’t matter.  What did you learn?”  After students get over the fear of being wrong, then they begin to build confidence, do their own analysis, form ideas, and start to have fun with the learning process.  The students also become more accepting of an idea being questioned and no longer take it personally, but learn from it and move on.

Learning how to fail is something that Dr. Kidd truly believes students need today.  As a professor, he sometimes sees a lack of willingness to try because of the fear of failure.  Students are afraid to write their own ideas down on paper because they are afraid of the judgement.  He encourages students to get hurt, work it out, recover from emotional trauma because he says, “If they never fail, how will they know what they are good at?  Just do something.  What is the worst that can happen?  You break something.”  Dr. Kidd says that his own past failures and struggles helped him find out what he truly enjoys, what he is good at, and what he is not good at. 

NanoCelluloseNano Cellulose MagnifiedOne of Dr. Kidd’s areas of research is nanoscience.  Nanoscience is the study and control or manipulation of very small things such as atoms and molecules.  In one case, Dr. Kidd and his student assistants broke down cellular fibers using an ultra-sonic probe.  Each molecule of cellulose then separates and gets surrounded by water.  After it is freeze dried, the material looks like cotton candy as it is approximately 99.98% air.  There is not much material in relation to surface area.  It is so [not dense] that it is not immediately felt when touched. 

Similar research with magnets is also taking place in one of his three labs.  Using these magnets that are mostly air (fluffy and ultra-light),  Dr. Kidd and his research assistants are investigating what can be done with a magnet that is not very powerful but weighs less than a gram. 

Layering TechnologyMaking composite materials and layering different materials are another project undergraduates are researching in Dr. Kidd’s lab.  They take layers of non-magnetic materials (such as semi-conductors or various metals) and sandwiching magnetic ions in between the layers.  This layering allows the researchers to control the magnetic strength and interactions of the material.  They do this by changing which elements or compounds are used, and the depth of each layer. 

As an undergraduate, Dr. Kidd majored in Engineering Physics at the University of Illinois Urbana Champaign.  At the time he did not know what field of engineering he wanted to pursue, so he took courses that were the basis of all engineering disciplines, physics being one of these.  He explored other engineering areas, talked to friends coming back from internships and even met with professionals.  Dr. Kidd felt that the majority of the engineers and his engineering classmates with whom he spoke were accomplishing similar tasks in process control and systems improvements.  He did not want to do these aspects of engineering for his career.  Again, he wanted to create objects using various tools.  One of the primary building blocks of engineering is physics and he was successful in these courses.  The result was Dr. Kidd obtaining a Ph.D in physics.  He then spent two years at Brookhaven National Laboratory conducting postdoctoral research studying nanomaterials and high temperature superconductors.  High temperature superconductors are materials that have little to no electrical resistance at extremely high temperatures.

As a graduate student, Dr. Kidd became a teacher’s assistant (TA) for a class and found that he was pretty good at it.  He liked the small group communication and helping students understand the material.  His experience led him to want to have a career that blended teaching with research.  This idea is what brought him to UNI.

Three Chambered OvenThis is Dr. Kidd’s 12th year at UNI.  He has supervised over 70 undergraduate students and a handful of graduate students.  Working with these students is what he believes a big component of his job should be.  “Doing real research and having students involved in it is what makes UNI stand out,” he says.

Dr. Kidd was recently awarded an Iowa Space Grant Consortium Curriculum Redesign Grant.  This grant will allow Dr. Kidd to develop a self-contained laboratory activity manual for teaching electronics at different levels from high school to graduate level.  The instruction is goal oriented and different than how many of us have been taught — theory then practice.  The students start by making something, such as a robot, then they work backwards to understand the what, how, and why.  This way the student has motivation to learn because he will know that he will be making a cool robot.  If a student makes or simulates an actual thing, learn about the individual components that goes into it, then a better understanding of the subject matter can be obtained and students are more likely to remember key concepts and processes.  The experiments start simple in the basic classes and build in the next class questioning why, possibly building a power supply, sensor, etc. themselves.  When taught to upperclassmen, the theories behind each build are discussed.

Dr. Kidd encourages students to get out of their comfort zone, try new things and find what you are good at.  “It is ok if you are not good at something.  Don’t make that your career.  Make it your hobby if you really like it.  There are a lot of things that you can be awesome at,” he says.  Find out what you enjoy, pursue it, and then play.


Ginger L'Heureux, UNI STEM Graduate Assistant
Posted: 11-13-18

A Fulfilling Future

Jaclyn Miller, UNI Mathematics Education major

Jaclyn Miller is a University of Northern Iowa Junior in Mathematics Education.  In 3rd grade she decided that she wanted to be a teacher.  “Many kids want to be teachers when they are little.  Many grow out of this.  I never did,” Jaclyn said. 

She came to UNI because she liked the size and felt very comfortable when she came for a campus visit.  She wanted a school larger than her high school but not so big that she felt like she would get lost in a crowd.  UNI has given her this and so much more.

Jaclyn Miller, Junior Mathematics Education major at UNI.Jaclyn’s father, who passed away when she was in 6th grade, gave her the foundation for her love of mathematics.  They were very close and would work on her math homework together.  They had similar ways in which they would think about problems, how to approach them and how to solve them.  This made homework time fun.  It was also something that just the two of them could do.  Pursuing a degree in mathematics is a way for Jaclyn to feel that she is able to stay connected to her father and honor his memory.

The decision to go into mathematics teaching was solidified Jaclyn’s senior year in high school when she took AP Calculus.  Her teacher, Mr. Kollbaum, encouraged Jaclyn and her fellow classmates to think in different ways.  He allowed each of his students to think about math in a way that made sense to them.  He encouraged students to share their own line of reasoning because other students may think similarly, even if the subject matter was not taught that way.  Jaclyn decided, “I want to be able to do that.  I want to be able to create a math classroom that everyone enjoys going to.  Math is so cool… because it explains so much about the world and how things work. There is nothing like it.”

Jaclyn’s UNI experience has been great.  She admits that she was a little nervous when first coming to college because she did not know if her professors would be open to all her questions or if they would care.  Everyone in UNI’s Math Department, and other departments, have shown her that they truly do care about her success.  Jaclyn said that her professors are personable and passionate about helping young people.  She continued, “Going to college, a student may feel like you are on your own.  At least here, that is not the case at all.” 

In Calculus III, which has been her favorite class, Dr. Adrianne Stanley would sometimes adjust the lesson plans for the day based on the needs of the students.  If the students needed more instruction, help, or examples with a particular topic, Dr. Stanley would take the time to make sure everyone was ready before moving on.  Jaclyn went on to say, “Dr. Stanley was really great about structuring her class so that people felt it was safe to ask questions and be wrong.  This is sometimes really hard.  Students often believe that they are the only ones who may not understand or have questions, when in reality, no one knows.  She had a unique way of creating this kind of environment.”  This is something that Jaclyn will strive for when she has her own students.

Jaclyn Miller being inducted into Omicron Delta Kappa, a leadership honor society.Outside of classes, Jaclyn participates in campus organizations and Peer Mentors.  Jaclyn is fundraising co-chair of Kappa Delta Pi (an education honor society), vice-president of Kappa Mu Epsilon (the mathematics honor society), student director of the Iowa Council of Teachers of Mathematics (ICTM), and was recently inducted into Omicron Delta Kappa (a leadership honor society).  In Omicron Delta Kappa she will serve on a service subcommittee and partner with Northern Iowa Wishmakers.  Each of these organizations serve others through activities such as fundraising for scholarships and networking with fellow math teachers at state conferences.

Last year, Jaclyn was a peer mentor for a freshman mathematics class.  In this role, she was able to help students adapt to the UNI campus and college life.  She led study sessions and offered office hours for students.  Some students who would be hesitant to ask a professor for help feel more comfortable asking a fellow student.  Jaclyn, on occasion, helped students draft emails to professors when they did not know how.  Peer mentors are tasked with helping students with personal questions and getting involved on campus.  In this role she took a group of students to UNI volleyball games.

Jaclyn Miller and friends having Fun  in the Panther Marching Band.One of the activities Jaclyn would recommend for students, especially incoming freshman, is the Panther Marching Band.  Jaclyn participated in the marching band with her clarinet for her freshman and sophomore years.  She also played saxophone in the pep band.  She loved this time.  She was able to meet new friends before classes even started because the band members arrive on campus before the semester begins.

Jaclyn was awarded an Iowa Space Grant Consortium STEM Education Scholarship this year.  ISGC funds future STEM and STEM Education professionals to increase Iowa’s STEM professional pipeline.

Jaclyn’s goal is to graduate in May of 2020.  In addition to teaching high school math, Jaclyn would like to pursue a Master’s in Education and volunteer at Every Step: Care and Support Services (formerly Amanda the Panda).  Every Step is a grief organization in Des Moines that is run by volunteers to help families with the loss of a loved one.  This organization helped Jaclyn and her mother after she lost her father and she would like to volunteer and help others going through similar times.

“I find it very fulfilling because it is very challenging.  Once you get it, it is the best feeling.  There is nothing like it for me,” Jaclyn said of pursuing a STEM career.   


Ginger L'Heureux, UNI STEM Graduate Assistant
Posted: 10-30-18

Information Bridge

CFHS journalism students with  Brian Winkel & IowaWatch  Executive Director Lyle Muller.

Science in Action is a project of the University of Northern Iowa’s Center for Energy and Environmental Education (CEEE). This year marks the third year of three for the Science in Action grant awarded from the Roy J. Carver Charitable Trust. The purpose is to connect with the general public about environmental and scientific topics important to Iowan communities.

Science in the Media is a web-based resource developed as part of the Science in Action grant. Led by Dr. Christopher Martin, UNI Media and Digital Journalism professor, Science in the Media’s goal is to provide journalists in Iowa and the Midwest with the right tools to write stories about scientific topics. Typically, journalists are general assignment reporters and do not have backgrounds in science. Dr. Martin, through Science in the Media, is bridging the gap and providing tools and materials, such as links to related scientific articles, for early journalists so that they can better cover scientific stories. “This [Science] is a huge area,” Dr. Martin stated, “so we have limited our work to environmental science in Iowa.”

Part of the Science in Action project brought Pulitzer Prize winning author Elizabeth Kolbert to UNI in September. Kolbert is author of the book The Sixth Extinction: An Unnatural History. Her work focuses on how scientific evidence supports that humans are contributing to what may be the “most devastating extinction event” since the dinosaurs. To learn more about Elizabeth Kolbert’s book visit

Science in the Media partners with IowaWatch and Cedar Falls High School. IowaWatch is a non-profit investigative news organization based in Iowa City. It covers news stories from all over the state. Because IowaWatch is a non-profit, it shares stories for free with media outlets such as newspapers, radio stations, and tv stations. The Waterloo-Cedar Falls Courier and the Des Moines Register have both picked up IowaWatch Stories in the past.

CFHS journalism students with  Brian Winkel & IowaWatch  Executive Director Lyle Muller.Cedar Falls High School students learn to investigate and write stories, based on good research. “This has been a really fruitful process,” Dr. Martin said of working with the high school students.  He went on to say, “This is neat because it is rare that high school students would get to work on projects that get this widely publicized.”

Not all of these students will go on to study journalism. Some do. They have gained experience and knowledge about how to interview and interact with people. They also learn how to write clearly and concisely and how to look at and interpret data. skills will be useful in any career.

A recent story investigated nitrates in Cedar Falls drinking water. Cedar Falls Utilities must stay within the legal limits of ten parts per million (10 ppm). This means the concentration of nitrates within a water sample can not be greater than 10 milligrams per liter of water. Another story investigated how many of Iowa’s Public Schools are in close proximity, within 2,000 feet, of croplands, particularly those lands that are sprayed with pesticides and herbicides.

The website is open to the public. Anyone can read the stories to discover how this information directly applies to their lives.  Dr. Martin, his graduate students, and others who are part of Science in the Media are always looking for new ideas and stories that are relevant to people and the environment. If you have an idea for a topic, contact Dr. Martin and Science in the Media at

Science in the Media is working to develop a future generation of scientific journalists. Science in Action and Science in the Media are two examples from many opportunities to engage across disciplinary boundaries and improve education and communities. Dr. Martin along with others on the UNI campus is working to build these bridges for an informed public.  - Ginger L'Heureux

The following partial story is reprinted with permission from Science in the Media as an example of a story written through the partnership between Iowa Watch and Cedar Falls High School:

Cedar Falls Fights Drinking Water Nitrates Battle

June 1, 2017
By Elise Leasure, Sabine Martin and Katherine Mauss/IowaWatch and Cedar Falls Tiger Hi-Line


Across the street and a few doors down from Meghan and Sean O’Neal’s Neola Street home in Cedar Falls, you can see a small, nondescript one-story brick building.

“I have seen that building before,” Meghan O’Neal said. “I never knew what it was.”

Sabine Martin/IowaWatch and Tiger Hi-Line The pump house for Cedar Falls Utilities’ No. 3 well.  Taken in March 2017. The building is Cedar Falls Utilities’ pump station 3, one of eight water wells that supply the city’s water system that has little identification except for a small sign attached to it that says Cedar Falls Utilities, the building’s address, and a phone number.

O’Neal and her husband are new to the neighborhood, but long-time Neola Street resident Rosann Good wasn’t aware of its purpose either, nor was Chuck Parsons, who has lived directly across the street from the pump station for two decades.

Knowing where your water comes from is one thing. Knowing what is in your water is another.

Three of Cedar Falls’ wells – 3, 9 and 10 – consistently have recorded high nitrate levels. All three are in the northern part of Cedar Falls and covered by a shallow layer of bedrock, which allows more nitrates to infiltrate the groundwater.

They stand in contrast to Cedar Falls’ southern water wells, where thicker bedrock layers better confine and protect the groundwater lower nitrate levels, a journalism collaboration of the University of Northern Iowa’s Science in the Media project, the Cedar Falls High School Tiger Hi-Line and IowaWatch showed.

“CFU presently is able to keep its water at legal nitrate levels by diluting the higher nitrate water from the northern city pump stations with the lower nitrate water from the southern pump stations in the pipes,” Jerald Lukensmeyer, gas and water operations manager at the utility company, said.

Reported levels in the city’s wells reached as high as 9.8 to 9.9 parts per million (ppm) in five different years from 1996 through 2016, Cedar Falls Utilities records show. The U.S. Environmental Protection Agency lists 10 ppm as the limit for an acceptable level.

Cedar Falls Utilities has records of nitrate testing levels dating to 1966, more than 50 years. In 1966, the highest nitrate reading at a city well was 4.2 ppm, far below the EPA’s 10 ppm limit. It wasn’t until 1992 that the highest nitrate reading exceeded 8 ppm. It has been between 8 ppm and 10 ppm ever since.

A 1999 U.S. Geological Survey study on Cedar Falls water supplies blamed the increasing application of nitrogen-based fertilizer to farm fields as the main cause of high nitrate levels. A 2013 Iowa Department of Agriculture and Land Stewardship report, “Iowa Nutrient Reduction Strategy,” said 92 percent of nitrates in Iowa’s water come from runoff largely from agriculture land. The other 8 percent come from wastewater treatment plant discharges, the report said.

“As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and groundwaters,” the study explained.

Nitrates can appear naturally in drinking water at low levels. The EPA’s allowable drinking water nitrate level of 10 parts ppm is the same as 10 milligrams per liter.


A major side effect of high nitrates is blue baby syndrome, known in the medical world as methemoglobinemia and affecting infants who consume a high concentration of nitrates in a short period of time.

The body in instances like that converts the nitrates into nitrites. The nitrites then react with the oxyhemoglobin, or oxygen carrying proteins in the blood, to form methemoglobin, a protein that cannot carry oxygen. The body becomes deprived of vital oxygen if a large enough concentration of methemoglobin builds up in the blood, giving skin a blue hue. In severe cases, this can lead to digestive and respiratory system malfunction.

An average of more than nine of every 10 babies survive blue baby syndrome for at least 20 years after corrective surgery. Less than 1 percent of patients diagnosed with blue baby syndrome don’t survive after 30 days.

“Some birth defects have also been associated with a mother’s exposure to nitrate in drinking water. These include neural tube defects, limb deficiencies and cleft lip and palate,” Peter Weyer, interim director of the Center for Health Effects of Environmental Contamination at the University of Iowa, said.

Other health concerns related to long-term nitrate exposure in drinking water studies conducted in Iowa have included bladder, ovarian and thyroid cancers, Weyer said.

Nitrate level data in parts per million, from Cedar Falls Utilities. Data not available for all years before 1992.  Graphic from Despite the side effects of high nitrate intake, many argue the acceptable U.S. Environmental Protection Agency’s 10 ppm standard for a safe nitrate level should be raised, Weyer said. Because blue baby syndrome rarely is diagnosed, the argument could be that perhaps a 15 ppm or 20 ppm standard would be acceptable, he said.

“However, the cancer studies we have conducted show that the risk increases for long term consumption of drinking water that has nitrate concentrations at or above 5 ppm, or half the drinking water standard,” Weyer said. He added that other contaminants in water make it difficult to evaluate how contaminant mixtures in drinking water affect people.

The Cedar Falls water system’s eight wells are linked to an underground aquifer. These wells supply the water that all citizens drink. Cedar Falls Utilities tests drinking water nitrate levels quarterly. Wells consistently high in nitrates are tested more frequently.

Lukensmeyer, at Cedar Falls Utilities, said well 3 has been shut off at various times so that its nitrate level doesn’t exceed 10 ppm.

Despite the potential nitrates threat in Cedar Falls’ water supply, residents have faith in the water system. “I kind of trust Cedar Falls Utilities that they are doing a good job with that,” Neola Street resident Rosann Good said.

Read the rest of this story here.


Ginger L'Heureux, UNI STEM Graduate Assistant
Posted: 10-17-18


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