60181
The discovery of widespread lead contamination in Washington , D.C. drinking water resulted in a Congressional investigation that damaged the scientific reputation of the Centers for Disease Control and Prevention ( CDC ) , left thousands of children with lifelong health risks , and led to a re-evaluation of the use of chloramine in public drinking-water systems .
 D.C., Centers for Disease Control and Prevention
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 D.C., Centers for Disease Control and Prevention