<http://schema.org/alternativeHeadline>
"A recent geological survey finds that at least 13% of private well water is contaminated with arsenic and other elements, such as uranium, boron, and lithium."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/private-wells-across-us-contaminated-with-arsenic>