EPA posts LSU scientist’s uranium pollution presentation

LaSierra University (LSU) posting “EPA posts LSU scientist’s uranium pollution presentation”


November 12, 2010

By Darla Martin Tucker

RIVERSIDE, Calif. – (www.lasierra.edu) The Geiger counter’s gamma radiation readings were jumping off the charts. La Sierra University biologist Lee Greer held the instrument, sweeping it over sand, rock and around the aging structure of an abandoned uranium mine in Arizona.

He wanted to know whether any radiation was seeping into the environment from the old open-pit Milestone uranium mine and mill, one of hundreds of defunct uranium operations scarring the deserts of Navajo Nation in Arizona, Utah and New Mexico. Uranium is a silvery-white metallic chemical element with nuclear properties. It is used as a fuel to produce nuclear power and weapons. Gamma radiation, the most powerful form of radiation, is a property of uranium and easily penetrates animals, people and objects. Exposure to it can lead to damaged DNA and cancer in humans.

Forgotten People, a nonprofit in Tuba City, Ariz. that advocates for Native Americans, worked with Greer during his latest visit to Navajo Nation the second week of September. While visiting the mine with representatives from the U.S. and Navajo environmental protection agencies and Forgotten People, Greer used the Geiger counter to check for radiation in pebbles, sand and objects near the shuttered Milestone operation. The tests proved positive; some readings on the counter were 100-fold greater than those taken in non-radiation-polluted areas. Cattle tracks could be seen near the mill and the Little Colorado River flowed nearby. An old metal marker affixed in concrete at the site carried the name Western Nuclear Inc. A New York University journalism student who accompanied the group captured the visit in a video documentary.

As a result of the group’s site visit and Greer’s tests, the U.S. Environmental Protection Agency’s Region 9 made assessment of the abandoned Milestone mine a priority. The agency was previously unaware of the abandoned site, said Will Duncan, an EPA Region 9 federal on-scene coordinator who accompanied the group to Milestone.

On Nov. 23, EPA Region 9 posted on its Web site a uranium contamination presentation Greer delivered during an agency community workshop in Tuba City the week of his trip to Navajo Nation. The presentation is available at the following link, under stakeholder presentations and Forgotten People: http://www.epa.gov/region9/superfund/navajo-nation/stakeholder.html.

Additionally, on Nov. 3, Greer gave two presentations on his uranium contamination research and participated in a panel discussion during the annual meeting of the Geological Society of America in Denver, Colo.

“The good news is there were not any structures where people were living that were close by,” Duncan said. He stated that the agency apprised site assessment personnel of the mine’s location. “It’s been made a priority,” he said last month. The EPA needs to determine whether the property is state land or on the reservation, “whether we take the lead” before any necessary cleanup can commence, he said. “If it’s on the reservation it could be an EPA and Department of Energy shared [assessment],” said Duncan.

A contractor screened the Milestone site earlier this month in the first of a series of assessments that involves radiological readings, photographs, GPS readings, location of homes and other data. While the site appears to have included a former uranium mill, further investigation and research of historical records is needed to verify the presence of the mill, said Jeff Inglis, EPA site assessment manager. “If it is confirmed, it is our expectation that we will inform the Department of Energy about it.”

EPA’s Region 9 office deals with environmental issues in Arizona, California, Hawaii, Nevada, Pacific Islands subject to U.S. law and tribal nations.

According to the EPA’s Region 9 Superfund Web page, “from 1944 to 1986, nearly four million tons of uranium ore were extracted from Navajo lands under leases with the Navajo Nation. Many Navajo people worked the mines, often living and raising families in close proximity to the mines and mills.” The region is pocked with 520 abandoned uranium mines and the EPA is participating in a five-year, multi-agency plan addressing contamination that may emanate from the old sites. Thus far the effort has resulted in 197 site screenings of abandoned mines, assessment of 199 structures and the completion of 14 replacement homes, according to an EPA report. The EPA aims to complete site screenings for all 520 abandoned uranium mines by the end of 2011 and clean up the highest risk mines. Along with other agency partners, it has also committed more than $22 million to provide drinking water infrastructure for more than 300 homes and to fund a pilot water-

Greer tested levels at a second mine site during his September visit. He joined two Canadian journalists, Forgotten People representatives and a uranium contamination advocacy group leader for a hot, six-mile hike down eroded strata into a canyon to reach the defunct Gold Springs mine. Navajo medicine man Freddie Nez guided the group. “We had Geiger counter readings up to 28,000 counts per minute,” Greer said. “Being down there made me worried a bit.” The group visited Nez’s family, several of who worked in the mine when it was open, including Nez. He and three family members have had cancer, Greer said.

Greer’s data and the publicizing of his findings to national-level groups are of significant benefit to Forgotten People and its efforts in drawing attention to the plight of the Navajo, said Don Yellowman. For decades Native Americans have drawn water from springs near the mines and in some cases have lived in close proximity to the old operations with no knowledge of the potential hazard.

“We cannot stress and emphasize how valuable it [Greer’s research] is. Before Dr. Greer, people would say, ‘don’t be worried about what’s in your water. It’s naturally occurring uranium.’ People downplay it,” Yellowman said. “It’s a real plus to us to have scientists like Dr. Greer take samples to his lab and then show those results to people in the field of science and health, that these are the hard facts,” he said.

Greer arrived in Arizona with 26 students from La Sierra University who were organized by nonprofit Project Pueblo to repair Navajo homes. Over the months Project Pueblo has brought more than 150 students to Navajo Nation from La Sierra, the University of California, Berkeley, the University of California, Los Angeles and Stanford University.

Some La Sierra students are involved in Greer’s project by helping with clerical tasks associated with his research, he said. While Greer tested for radiation contamination and presented his findings, La Sierra students spent the week renovating the dilapidated homes of Navajo living in the former, 1.5 million-acre Bennett Freeze sector of Navajo Nation. Houses and hogans, many without electricity or running water, fell into disrepair from decades of neglect following a 1966 federal ban enacted by U.S. Commissioner of Indian Affairs Robert Bennett. The regulation, in response to a long-running land dispute, stopped property development and home repair for more than 40 years before the ban was finally lifted in 2009 by the Obama administration.

Greer and the La Sierra students became aware of the Bennett Freeze and uranium contamination issues after reading articles in the Los Angeles Times. Greer first visited the region with another student aid group in June. He traveled to several abandoned uranium mines and took 30 samples in plastic Ziploc bags of soil, water and cow manure for chemical testing back in La Sierra’s labs. Using a gamma ray spectrometer from La Sierra’s physics department and a radioisotope lab in the university’s Price Science Complex, Greer ran gamma ray energy spectra, a type of reading of radiation levels in the samples. Results showed very high levels of radiation, he said.

Greer’s involvement in the uranium contamination issues in Navajo Nation is indicative of his personal commitment to human rights around the world and his views about the inherent responsibilities of his field of work. “I want to make a difference for environmental justice for the people there, along with Forgotten People, and am honored to be associated with the student volunteers,” Greer said. “Everyone on earth, by recent U.N. action, has a right to clean water and sanitation. The rights to health care and a clean and healthy environment, I believe those are fundamental human rights, and as a scientist and an academic, I have a responsibility to speak out.”

(Photo left to right) Stuart Liederman, environmental refugees expert, Marsha Monestersky and Don Yellowman of Forgotten People, and Lee Greer at the Geological Society of America convention.

PR Contact: Larry Becker
Executive Director of University Relations
La Sierra University
Riverside, California
951.785.2460 (voice)

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  2. Pingback: RealTime - Questions: "Can I find uranium near me?"

    • forgottenpeople on December 3, 2010 at 9:46 am said:

      It depends upon where you live. Most of the uranium was mined in Indian country and left there for over 50 years leeching into the aquifers, washes, ground water.

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  47. Terryl M. Francisco on May 8, 2012 at 1:22 pm said:


    Regardless of the cost, can I submit a sample of water for testing? If so would you please advise.

    Terryl M. Francisco
    517 Overton Street
    Marksville, LA 71351

    • forgottenpeople on May 24, 2012 at 2:40 pm said:

      Dear Terryl,

      Thank you for your kind offer. I am sharing your concern with Dr. Lee F. Greer, La Sierra University to determine the best way for us to test the water under the Cameron upgrader uranium mill that maxxed out a US EPA Superfund geiger counter. There is a high water table under the area and if we can show water is contaminated that is quantified as drinking water, US EPA will have to take prompt action.

    • forgottenpeople on May 24, 2012 at 2:42 pm said:

      Dear Terryl,

      What is your email address and phone number so I can have Dr. Lee F. Greer contact you.


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