Disposal sites near drinking water will be allowed to operate for longer.
Andrew Wheeler touted his time as a career employee at the EPA and his coal-mining heritage, and pledged to act differently from his controversial predecessor, Scott Pruitt.
Several top aides to former Environmental Protection Agency administrator Scott Pruitt are leaving the agency, less than a week after Pruitt resigned his post.
Investigators on a key House oversight committee plan to proceed.
Andrew Wheeler has spent decades in Washington, working for the government and lobbying on behalf of industry. Now the low-profile policy expert has a very high-profile political job.
Scott Pruitt and Andrew Wheeler have very different working styles.
He sought to aggressively roll back Obama-era regulations. But lavish spending, an unusual housing deal and allegations that he misused his office led to his ouster.
A scheduling aide raised concerns about the removal of names including that of Cardinal George Pell, who was later charged with sexual misconduct. Then she lost her job.
He was facing more than a dozen federal inquiries.
The administrator sought a six-figure job for his wife and enlisted staffers for personal tasks.