About 100 million tons of coal ash -- which contains arsenic, mercury, cadmium, and other toxic metals -- are produced each year, and enviros have been asking the Clinton administration to regulate its disposal to prevent contamination of water supplies.
(About 100 million tons of coal ash; contains; arsenic, mercury, cadmium, and other toxic metals) (About 100 million tons of coal ash -- which contains arsenic, mercury, cadmium, and other toxic metals; are produced; T:each year) (enviros; have been asking; the Clinton administration; to regulate its disposal to prevent contamination of water supplies) (the Clinton administration; to regulate; its disposal; to prevent contamination of water supplies) Context(the Clinton administration to regulate,List([159, 197))):(the Clinton administration; to regulate its disposal to prevent; contamination of water supplies)
the Clinton administration to regulate,List([159, 197))
About 100 million tons of coal ash About 100 million tons of coal ash -- which contains arsenic, mercury, cadmium, and other toxic metals enviros the Clinton administration the Clinton administration
contains are produced have been asking to regulate to regulate its disposal to prevent
arsenic, mercury, cadmium, and other toxic metals
T:each year
the Clinton administration to regulate its disposal to prevent contamination of water supplies
its disposal to prevent contamination of water supplies
contamination of water supplies