Cautionary tale at this link. A couple of highlights pasted below.
Radioactive mill tailings still an issue | GJFreePress.com
Grand Junction once had the dubious distinction of being known as the “most radioactive town in America.” During the 1950s and 1960s, local contractors and homeowners would load trucks of the sandy-like tailings left over from the former Climax uranium mill site near the Colorado River and use it for back fill and for mixing cement. At the time it wasn't widely known, locally anyway, that the waste product was highly radioactive.
The tailings were used in foundations of homes, sidewalks, patios, streets, schools and commercial buildings.
State and federal remediation programs removed or mitigated many of the radioactive tailings from 1972 to 1998. It was a voluntary program and some owners refused to allow the government to clean up their property. Out of 8,000 known tailings properties in Mesa County approximately 5,000 were cleaned up, said Paul Oliver last year before he retired from the state health department.
Homes that were cleaned up under the first program, the Grand Junction Remediation Action Program, were not remediated to the same standards of the clean-up that came later, the Uranium Mill Tailings Remedial Action Program.
Unfortunately, they say, out of about 575 real estate agents, only a few order mill tailings reports on their listings.
The information is free and available to anyone. For a 25 cent copying fee, Elsberry will provide a hard copy of the report.
“There's definitely a duty to disclose,” Toll said.
And in a city like Grand Junction where the health department is making a concerted effort to educate real estate agents, ignorance of the issue is no excuse for not telling clients that the presence of mill tailings are a possibility, Toll said.
In fact, “we'd be more likely to take an action,” Toll said. “We'd open up an investigation against a real estate agent and bring him or her before the Colorado Real Estate Commission. Penalties could range from public censure to suspension of license to revocation of license.”