Documents WW obtained through a public records request show that at least 47 buildings were found to have at least one source of drinking water from which the water tested above the U.S. Environmental Protection Agency's "action level" for lead of 15 parts per billion.

It's important to note that just because one drinking water source—whether a fountain or tap—produced samples with lead above the action level—doesn't mean all sources tested above the action level at that school.

Here are the buildings in which at least one water sample exceeded the EPA guideline for lead. For specific results within each building, please see the link below.

Finally, PPS officials, including Superintendent Carole Smith, have said they were unaware of the testing done between 2010 and 2012, so it is unclear at this point whether the district took remedial action or not.

Here's the list:

Abernethy

Ainsworth

Alameda

Applegate

Arleta

Astor

Beach

Bridlemile

Buckman

Capitol Hill

Chapman

Chief Joseph

Child Services Cetner

Cleveland

Columbia site

Creative Science

Creston Annex

Duniway

Edwards

Faubion

Franklin

George

Grant

Gray

Grout

Hayhurst

Jackson

Jefferson

Kelly

King

Markham

Marshall

Peninsula

Rice Site

Rieke

Roosevelt

Rosa Parks

Sabin

Scott

Sellwood

Sitton

Tubman

Vernon

Whitman

Wilson

Woodmere

Woodstock

The data was obtained through a public records request for documents. Here is the document.