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Millions of people across the US use well water, but very few test it often enough to make sure it’s safe

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Serious water contaminants such as nitrate may not have any detectable taste or odor. Willie B. Thomas/Digital Vision via Getty Images

Gabriel Lade, Macalester College

About 23 million U.S. households depend on private wells as their primary drinking water source. These homeowners are entirely responsible for ensuring that the water from their wells is safe for human consumption.

Multiple studies show that, at best, half of private well owners are testing with any frequency, and very few households test once or more yearly, as public health officials recommend. Even in Iowa, which has some of the strongest state-level policies for protecting private well users, state funds for free private water quality testing regularly go unspent.

Is the water these households are drinking safe? There’s not much systematic evidence, but the risks may be large.

The U.S. Environmental Protection Agency still relies on a 15-year-old study showing that among 2,000 households, 1 in 5 households’ well water contained at least one contaminant at levels above the thresholds that public water systems must meet. While other researchers have studied this issue, most rely on limited data or data collected over decades to draw conclusions.

I’m an economist studying energy and agriculture issues. In a recent study, I worked with colleagues at Iowa State University, the University of Massachusetts Amherst and Cornell University to understand drinking water-related behaviors and perceptions of households that use private wells. We focused on rural Iowa, where runoff from agricultural production regularly contaminates public and private drinking water sources.

Diagram of a private well showing the aquifer below the home and pipes connecting the well to an indoor tank.
Basic components of a private water well. EPA

We found that few households followed public health guidance on testing their well water, but a simple intervention – sending them basic information about drinking water hazards and easy-to-use testing materials – increased testing rates. The burden of dealing with contamination, however, falls largely on individual households.

Nitrate risks

We focused on nitrate, one of the main well water pollutants in rural areas. Major sources include chemical fertilizers, animal waste and human sewage.

Drinking water that contains nitrate can harm human health. Using contaminated water to prepare infant formula can cause “blue baby syndrome,” a condition in which infants’ hands and lips turn bluish because nitrate interferes with oxygen transport in the babies’ blood. Severe cases can cause lethargy, seizures and even death. The EPA limits nitrate levels in public water systems to 10 milligrams per liter to prevent this effect.

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Studies have also found that for people of all ages, drinking water with low nitrate concentrations over long periods of time is strongly associated with chronic health diseases, including colorectal cancer and thyroid disease, as well as neural tube defects in developing fetuses.

Nitrate pollution is pervasive across the continental U.S. Fortunately, it is relatively easy to determine whether water contains unsafe nitrate concentrations. Test strips, similar to those used in swimming pools, are cheap and readily available.

US map showing high risk of nitrate contamination in drinking water in the Midwest and central Plains
Heavily agricultural areas are vulnerable to nitrate pollution in water, especially where aquifers are shallow. Areas at the highest risk of nitrate contamination in shallow groundwater generally have high nitrogen inputs to the land, well-drained soils and high ratios of croplands to woodlands. USGS

The water’s fine … or not

Mailing lists of households with private wells are hard to come by, so for our study we digitized over 22,000 addresses using maps from 14 Iowa counties. We targeted counties where public water systems had struggled to meet EPA safety standards for nitrate in drinking water, and where private wells that had been tested over the past 20 years showed nitrate concentrations at concerning levels.

We received responses from over half of the households we surveyed. Of those, just over 8,100 (37%) used private wells.

Map of Iowa with dots showing state findings for nitrate levels in private wells.
Nitrate measurements in domestic wells in Iowa from 2002 to 2022, from the Iowa Department of Natural Resources public water-testing program. Counties targeted in Lade et al.’s 2024 review are highlighted in red. Lade et al., 2024, CC BY-ND

Although the Centers for Disease Control and Prevention recommends testing annually for nitrate, just 9% of these households had tested their water quality in the past year.

More concerning, 40% of this group used their wells for drinking water, had not tested it in the past year, and did not filter the water or use other sources such as bottled water. They were drinking straight from the tap without knowing whether their water was safe.

Our survey also showed that, despite living in high-risk areas, 77% of households classified their well water quality as “good” or “great.” This may be driven by a “not in my backyard” mentality. Households in our survey were more likely to agree with the statement that nitrate is a problem in the state of Iowa than to perceive nitrates as a problem in their local area.

Climate change is likely to worsen nitrate contamination in well water. In regions including the Great Lakes basin, increases in heavy rainfall are projected to carry rising amounts of nutrients from farmlands into waterways and groundwater. https://www.youtube.com/embed/yDaaIo3JBNw?wmode=transparent&start=0 Nitrate contamination is often thought of as a rural problem, but in California it also has shown up in urban areas.

Providing information and tools helps

To see whether education and access to testing materials could change views about well water, we sent a mailer containing a nitrate test strip, information about risks associated with nitrate in drinking water, and contact information for a free water quality testing program run by the state of Iowa to a random 50% of respondents from our first survey. We then resurveyed all households, whether or not they received the mailer.

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Over 40% of households that received test strips reported that they had tested their water, compared with 24% of those that did not receive the mailer. The number of respondents who reported using Iowa’s free testing program also increased, from 10% to 13%, a small but statistically meaningful impact.

Less encouragingly, households that received the mailer were no more likely to report filtering or avoiding their water than those that did not receive the mailer.

Households bear the burden

Our results show that lack of information makes people less likely to test their well water for nitrate or other contaminants. At least for nitrate, helping households overcome this barrier is cheap. We asked respondents about their willingness to pay for the program and found that the average household was willing to pay as much as US$13 for a program that would cost the state roughly $5 to implement.

However, we could not determine whether our outreach decreased households’ exposure to contaminated drinking water. It’s also not clear whether people would be as willing to test their well water in states such as Wisconsin or Oregon, where testing would cost them up to a few hundred dollars.

As of 2024, just 24 states offered well water testing kits for at least one contaminant that were free or cost $100 or less. And while most states offer information about well water safety, some simply post a brochure online.

The upshot is that rural households are bearing the costs associated with unsafe well water, either through health care burdens or spending for treatment and testing. Policymakers have been slow to address the main source of this problem: nitrate pollution from agriculture.

In one exception, state agencies in southeastern Minnesota are providing free well water quality testing and offering a few households filtration systems in cases where their wells are laden with nitrate from local agricultural sources. However, this effort began only after environmental advocates petitioned the EPA.

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If state and federal agencies tracked more systematically the costs to households of dealing with contaminated water, the scale of the burden would be clearer. Government agencies could use this information in cost-benefit assessments of conservation programs.

On a broader scale, I agree with experts who have called for rethinking agricultural policies that encourage expanding crops associated with high nutrient pollution, such as corn. More restoration of wetlands and prairies, which filter nutrients from surface water, could also help. Finally, while the Environmental Protection Agency can’t force well owners to test or treat their water, it could provide better support for households when pollutants turn up in their drinking water.

Gabriel Lade, Associate Professor of Economics, Macalester College

This article is republished from The Conversation under a Creative Commons license. Read the original article.

STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.

https://stmdailynews.com/

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Urbanism

Metrolink is Coming Soon: Ready for a New Era of Commuting in Santa Barbara and Goleta!

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Image: Metrolink

Exciting news is on the horizon for commuters in the Santa Barbara and Goleta area! After years of planning and anticipation, the Metrolink commuter train service is set to launch this fall, providing a new, efficient way to travel between Ventura County and Santa Barbara County. With the increasing focus on alternative transportation options, this project represents a significant step forward for our communities and environment.

Metrolink is Getting Ready for a New Era of Commuting in Santa Barbara and Goleta

The Journey Begins

The Santa Barbara County Association of Governments (SBCAG) is at the forefront of this initiative, fulfilling a promise made to voters who approved a funding tax aimed at both widening the freeway and exploring innovative transportation alternatives. Originally considered along with Amtrak, the decision to partner with Metrolink emerged, as their schedules proved more conducive to the commuter needs of the area.

Metrolink’s plan is to operate a streamlined route starting from Moorpark, with stops in our beautiful Santa Barbara and Goleta, avoiding the timing conflicts that hampered the Amtrak discussions. Aaron Bonfilio, SBCAG’s Director of Multimodal Programs, emphasized the importance of this collaboration, saying, “working with them to develop this agreement is critical to the next step. And that’s what this is all about.”

A Convenient Ride

Imagine leaving Oxnard at a crisp 7 a.m. and arriving in Santa Barbara by 7:51 a.m., or reaching Goleta shortly after at 8:03 a.m. The convenience of this service is striking, with additional afternoon departures that will surely benefit daily commuters. Goleta Mayor Paula Perotte expressed her enthusiasm, stating, “Oh, that’s totally reasonable,” highlighting the strategic scheduling designed to meet local needs.

Riders can look forward to a brand new train depot in Goleta, currently under construction, with daily bus connections to enhance accessibility. Bonfilio mentioned the multiple options available through the Coastal Express, providing around 20 trips in both directions each morning and afternoon.

An Affordable and Productive Commute

The introductory round-trip fare of just $10, or $5 in each direction, is a refreshing incentive intended to encourage residents to leave their cars behind. It’s not only planet-friendly but wallet-friendly, too! For those opting to work during their commute, Mayor Perotte noted that riding the train may even allow workers to log their commute time since they can be productive on their laptops while on board.

Initial projections show around 200 daily riders, and with a capacity for over 500, there’s plenty of room for growth. “I think once people get used to riding the train, they’re going to love it,” said Mayor Perotte, sharing her vision of creating a new commuting habit that moves people away from sitting in traffic.

Ready to Roll

SBCAG is currently finalizing agreements to ensure everything is in place before the fall launch, paving the way for an exciting new chapter in commuting for Santa Barbara and Goleta residents. This initiative not only represents a practical solution to transportation challenges but also offers a glimpse into a future where public transit continues to evolve.

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In closing, let’s prepare to say goodbye to traffic woes and hello to the ease and joy of train travel. Get ready to hop on the Metrolink and enjoy the ride into a more connected and sustainable future! 🚆✨

STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.

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Community

News coverage boosts giving after disasters – Australian research team’s findings may offer lessons for Los Angeles fires

Media coverage significantly influences charitable donations during disasters by highlighting urgency, personal stories, and the scale of the crisis, shaping public generosity and nonprofit support choices.

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People who lost their possessions in the fire that swept through Altadena, Calif., look through donated shoes and clothing on Jan. 15, 2025. AP Photo/Richard Vogel

Cassandra Chapman, The University of Queensland

In late 2019 and early 2020, a series of devastating wildfires, known as the “black summer” bushfire disaster, left Australia reeling: More than 20% of the country’s forests burned.

As a scholar of the psychology of charitable giving, I have long been interested in the unique emotional response that disasters evoke – often generating an urgent and visceral wish to help.

I wanted to understand how and why people respond to a crisis of this magnitude. For the project, I teamed up with three Australian environmental psychology and collective action experts: Matthew Hornsey, Kelly Fielding and Robyn Gulliver.

We found that international media coverage of disasters can help increase donations. Our findings, which were published in the peer-reviewed academic journal Disasters in 2022, are relevant to the situation in Los Angeles, where severe fires destroyed thousands of homes and businesses in January 2025, devastating many communities.

That recovery could take years.

5 key factors affect generosity

All told, Australian donors gave more than US$397 million, or $640 million in Australian dollars, to support the recovery from the black summer bushfire disaster. The international community also rallied: U.S. and U.K. donors contributed an additional US$2.6 million. These donations were used to fund evacuation centers, support groups for victims, and cash grants for repairs and rebuilding, among other things.

When we surveyed 949 Australians about what influenced their donations and analyzed news articles about the disaster, we found that coverage of disasters significantly increased generosity and influenced which charities drew donations. This may be because news articles communicated directly the need for charitable support.

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Using this survey data, we identified key factors that influenced how much money, if any, people donated in response to the bushfire disaster appeals. These five were linked with the amounts Australians donated:

Scale: The sheer scale of the fires.

Personal impact: Having been personally affected, knowing people who have been affected, or being worried that they will be affected in the future.

Climate change beliefs: Believing that climate change is impacting the environment.

News footage: The dramatic footage of the fires they have seen.

Stories: The stories of those who have been affected.

Three of these factors – scale, news footage and stories – relate to information people were exposed to in media coverage of the disaster. Further, when we asked people how they chose which charities to support, they said that media coverage was more influential than either their friends and family or direct communication from those same charities.

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These findings collectively show how media coverage can powerfully influence both how much people give to disaster relief and which nonprofits they choose to support.

A man and a child stand amid wreckage that's been burned.
Bushfire survivor Ian Livingston and his son Sydney stand in the ruins of their family home, lost to the ‘black summer’ bushfires in May 2020 in Cobargo, Australia. Brook Mitchell/Getty Images

Setting the agenda

In the next phase of our research, we tried to learn how media coverage affects the public’s generosity.

We downloaded every news article we could find about the disaster over the three-month period that fires raged and analyzed the text of 30,239 news articles using Linguistic Inquiry and Word Count software.

We looked at which kinds of language and concepts were being used in media coverage, and how frequently they were used compared with their use in everyday written language.

In addition to concepts we expected to see, like emergency, heroes and human loss, we found that the concepts of support and money frequently showed up in coverage. Words like “donations,” “help” and “support” occurred in 74% of news articles. Words having to do with money were even more common: They appeared almost twice as often as they do in ordinary written language.

Our findings suggest that news coverage may have helped to set the agenda for the huge charitable response to Australia’s wildfire disaster because the media told people what they should be thinking about in terms of that disaster. In Australia’s case, it was how they could help.

A consideration for the media

We also believe that it’s likely that news coverage of disasters like this one can serve an agenda-setting function by teaching the public how to think about the crisis.

To the extent that news coverage highlights concepts like support, possibly communicating that donating is a normal response to a crisis, it’s reasonable to expect people to donate more money.

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Given that news coverage can influence how much someone donates, as well as which charities they choose to support, nonprofits responding to the Los Angeles fires may wish to encourage media outlets to mention their work in news coverage.

It is likely that being featured in news coverage – especially when calls to action or opportunities to donate are incorporated in an article – would result in more funds being raised for the charity’s response to the disaster.

Cassandra Chapman, Associate Professor, The University of Queensland

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The power of friendship: How a letter helped create an American bestseller about antisemitism

Laura Z. Hobson’s “Gentleman’s Agreement” explores antisemitism through reporter Phil Green’s experiences posing as Jewish, ultimately becoming a bestseller that sparked important conversations about prejudice in America.

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The novel about reporter Phil Green, which was soon made into a film, put prejudice and hypocrisy in the spotlight. John Springer Collection/Corbis via Getty Images

Rachel Gordan, University of Florida

Eighty years ago, the Jewish American novelist Laura Z. Hobson was contemplating her next writerly move and was seeking a little help from her friends.

Gentleman’s Agreement,” the story she was drafting, felt like a bold idea. Maybe too bold. In her vision for the novel, reporter Phil Green is assigned to write an article about antisemitism. He pretends to be Jewish so he can experience bigotry firsthand. Readers follow the character as he encounters the prejudice of supposedly good people and learns how to respond to the slights and jabs casually meted out even by Americans who consider themselves liberal.

It was 1944, three years after the United States joined World War II. What prompted Americans to finally fight, however, was the Japanese attack on Pearl Harbor, not Nazi persecution of Jews and other marginalized groups. Antisemitism in the U.S. remained rampant throughout the early and mid-1940s.

With so many fraught feelings about Jews, and about the war in which American soldiers were risking their lives, Hobson was unsure how a novel about domestic antisemitism would be received. She might have wondered if readers would dismiss the story as a Jewish writer’s “special pleading” on behalf of her own.

Should she move forward with the novel that was bubbling up inside of her? To find her way out of her writing quandary, Hobson did something she had never done before and would never do again in her four decades of writing more than a dozen books: She consulted several friends and colleagues, mailing them her proposal for the novel and a cover letter explaining her quandary.

She did not know it at the time, but Hobson was about to write her most important book – one that would help broaden conversation about prejudice by reaching many more readers than would ever hear a rabbi’s sermon or read a committee’s report on antisemitism.

A formally dressed woman with white hair poses, with her arms folded, in front of a marbled backdrop.
American novelist Laura Z. Hobson. Peter Jones/Corbis Historical via Getty Images

The right words

When the responses started to come in, it became clear that not all the feedback was of the helpful variety.

Lee Wright, Hobson’s editor at Simon & Schuster, seemed not to have fully grasped that writing fiction was a matter of placing oneself in the shoes of someone else. The editor advised Hobson that she was ill-suited to write from a gentile’s perspective because Hobson herself was Jewish. Further, Wright cautioned, Hobson should not attempt to write from a man’s perspective.

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Hobson’s publisher and friend, Richard Simon of Simon & Schuster, was also skeptical. He did not believe that novels were the way to fight antisemitism or bigotry. And then Simon did that worst thing an editor could do: He reminded Hobson that her last novel, “The Trespassers,” had been a commercial disappointment.

Hobson stewed over these replies, as evident from her autobiography and letters archived at Columbia University, which I found while researching my first book, “Postwar Stories: How Books Made Judaism American.” As Hobson later noted in her autobiography, her publisher’s less-than-enthusiastic reply sapped some of her confidence. She wasn’t entirely certain that she wanted to continue with her writing.

It was one of Hobson’s closest female friends, Louise Carroll Whedon, whose letter offered just the right words of encouragement. Known as Carroll to her friends, she was married to TV writer John Whedon – and the family’s writing success would continue with their grandson Joss Whedon, of “Buffy the Vampire Slayer” and “The Avengers” fame.

Familiar with the ups and downs of the writing life, as well as Hobson’s insecurities, Carroll replied with the enthusiasm that Hobson needed. “Let me say right away that I think the book ought to be written,” Whedon assured her, “and the sooner the better – not to highlight the plight of the Jew, but to examine the even more appalling plight of the non-Jew, and what the seeping poison of prejudice can mean to America.”

The Americans who really needed “Gentleman’s Agreement,” Whedon argued, weren’t the extreme antisemites, but the people hoping that “if you just pretend it isn’t there, maybe it will go away.” Otherwise, she warned, that willful ignorance and passivity could destroy the country – “at least the America that most people want to believe exists.”

Whedon did not deny the risks. But she wasn’t willing to watch her friend doubt her abilities – or her insights as a Jewish woman who had experienced antisemitism firsthand, and observed casual antisemitism from her non-Jewish friends. That Whedon was one of Hobson’s non-Jewish friends made her enthusiasm for a novel about antisemitism especially valuable to Hobson.

“It’s a controversial subject, Babe, and there’ll be arguments who should do it and when and how it should be done no matter what comes of it,” Whedon concluded. “For me, I think you’re in a singularly good spot to write it – in hot anger, sure – but in cold truth as well.”

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Whedon had brought Hobson back to herself. Now, it was time to write.

Instant success

In a few years, the book stuck in Hobson’s mind would become a sensation. First published as a series in Cosmopolitan magazine, “Gentleman’s Agreement” was then printed by Simon & Schuster in 1947. It became a bestseller and later an Academy Award-winning film starring Gregory Peck.

“Required reading for every thoughtful citizen in this parlous century” was how The New York Times described the novel. Because of Hobson’s readable style and romance, the novel received attention from a wide range of publications, from the Saturday Review of Literature to Seventeen magazine. From books like Hobson’s, Americans were learning “how we could be humane, as well as human, beings,” Times reviewer Charles Poore wrote in a December 1947 roundup of the year’s top books.

A movie poster with actors' names and the title 'Gentleman's Agreement'
Within a year of the novel’s publication, it was adapted into an award-winning film. Twentieth Century–Fox Film Corp via Wikimedia Commons

“Gentleman’s Agreement” was never perceived as “just” a Jewish novel – mostly because readers mistakenly assumed an author named Hobson was not Jewish. Even for critics, the book broadcast a new openness toward discussing antisemitism. It was a story full of teachable moments.

Hobson’s novel was part of a wave of 1940s fiction against antisemitism. Some of these novels were written by Jewish authors who were beginning to form the nucleus of postwar American literature, such as Saul Bellow and Arthur Miller. Others were by writers who made their mark during the 1940s, but whose names have faded over the decades, such as Gwethalyn Graham and Jo Sinclair. But Hobson’s was the most popular of its time.

If it weren’t for Whedon’s encouragement, though, “Gentleman’s Agreement” might never have been finished. If every friend of a writer said just the right thing – offering the needed encouragement or tough love – it would not feel like such profound treasure to spy a pearl of encouragement. But nobody gets all the encouragement they need, and writers are no exception.

Rachel Gordan, Assistant Professor of Religion and Jewish Studies, University of Florida

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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